source: opengl-game/IMGUI/imgui_draw.cpp

feature/imgui-sdl
Last change on this file was e66fd66, checked in by Dmitry Portnoy <dportnoy@…>, 4 years ago

In OpenGLReference, change all enums to enum classes and update IMGUI to the latest version
  • Property mode set to 100644
File size: 187.5 KB
Line 
1// dear imgui, v1.79
2// (drawing and font code)
3
4/*
5
6Index of this file:
7
8// [SECTION] STB libraries implementation
9// [SECTION] Style functions
10// [SECTION] ImDrawList
11// [SECTION] ImDrawListSplitter
12// [SECTION] ImDrawData
13// [SECTION] Helpers ShadeVertsXXX functions
14// [SECTION] ImFontConfig
15// [SECTION] ImFontAtlas
16// [SECTION] ImFontAtlas glyph ranges helpers
17// [SECTION] ImFontGlyphRangesBuilder
18// [SECTION] ImFont
19// [SECTION] ImGui Internal Render Helpers
20// [SECTION] Decompression code
21// [SECTION] Default font data (ProggyClean.ttf)
22
23*/
24
25#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
26#define _CRT_SECURE_NO_WARNINGS
27#endif
28
29#include "imgui.h"
30#ifndef IMGUI_DISABLE
31
32#ifndef IMGUI_DEFINE_MATH_OPERATORS
33#define IMGUI_DEFINE_MATH_OPERATORS
34#endif
35#include "imgui_internal.h"
36
37#include <stdio.h> // vsnprintf, sscanf, printf
38#if !defined(alloca)
39#if defined(__GLIBC__) || defined(__sun) || defined(__APPLE__) || defined(__NEWLIB__)
40#include <alloca.h> // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here)
41#elif defined(_WIN32)
42#include <malloc.h> // alloca
43#if !defined(alloca)
44#define alloca _alloca // for clang with MS Codegen
45#endif
46#else
47#include <stdlib.h> // alloca
48#endif
49#endif
50
51// Visual Studio warnings
52#ifdef _MSC_VER
53#pragma warning (disable: 4127) // condition expression is constant
54#pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
55#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
56#endif
57
58// Clang/GCC warnings with -Weverything
59#if defined(__clang__)
60#if __has_warning("-Wunknown-warning-option")
61#pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx' // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
62#endif
63#pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
64#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
65#pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
66#pragma clang diagnostic ignored "-Wglobal-constructors" // warning: declaration requires a global destructor // similar to above, not sure what the exact difference is.
67#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
68#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0
69#pragma clang diagnostic ignored "-Wcomma" // warning: possible misuse of comma operator here
70#pragma clang diagnostic ignored "-Wreserved-id-macro" // warning: macro name is a reserved identifier
71#pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
72#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
73#elif defined(__GNUC__)
74#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
75#pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
76#pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
77#pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
78#pragma GCC diagnostic ignored "-Wstack-protector" // warning: stack protector not protecting local variables: variable length buffer
79#pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
80#endif
81
82//-------------------------------------------------------------------------
83// [SECTION] STB libraries implementation
84//-------------------------------------------------------------------------
85
86// Compile time options:
87//#define IMGUI_STB_NAMESPACE ImStb
88//#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h"
89//#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h"
90//#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
91//#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
92
93#ifdef IMGUI_STB_NAMESPACE
94namespace IMGUI_STB_NAMESPACE
95{
96#endif
97
98#ifdef _MSC_VER
99#pragma warning (push)
100#pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration
101#endif
102
103#if defined(__clang__)
104#pragma clang diagnostic push
105#pragma clang diagnostic ignored "-Wunused-function"
106#pragma clang diagnostic ignored "-Wmissing-prototypes"
107#pragma clang diagnostic ignored "-Wimplicit-fallthrough"
108#pragma clang diagnostic ignored "-Wcast-qual" // warning: cast from 'const xxxx *' to 'xxx *' drops const qualifier
109#endif
110
111#if defined(__GNUC__)
112#pragma GCC diagnostic push
113#pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits]
114#pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
115#endif
116
117#ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
118#ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
119#define STBRP_STATIC
120#define STBRP_ASSERT(x) do { IM_ASSERT(x); } while (0)
121#define STBRP_SORT ImQsort
122#define STB_RECT_PACK_IMPLEMENTATION
123#endif
124#ifdef IMGUI_STB_RECT_PACK_FILENAME
125#include IMGUI_STB_RECT_PACK_FILENAME
126#else
127#include "imstb_rectpack.h"
128#endif
129#endif
130
131#ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
132#ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
133#define STBTT_malloc(x,u) ((void)(u), IM_ALLOC(x))
134#define STBTT_free(x,u) ((void)(u), IM_FREE(x))
135#define STBTT_assert(x) do { IM_ASSERT(x); } while(0)
136#define STBTT_fmod(x,y) ImFmod(x,y)
137#define STBTT_sqrt(x) ImSqrt(x)
138#define STBTT_pow(x,y) ImPow(x,y)
139#define STBTT_fabs(x) ImFabs(x)
140#define STBTT_ifloor(x) ((int)ImFloorStd(x))
141#define STBTT_iceil(x) ((int)ImCeil(x))
142#define STBTT_STATIC
143#define STB_TRUETYPE_IMPLEMENTATION
144#else
145#define STBTT_DEF extern
146#endif
147#ifdef IMGUI_STB_TRUETYPE_FILENAME
148#include IMGUI_STB_TRUETYPE_FILENAME
149#else
150#include "imstb_truetype.h"
151#endif
152#endif
153
154#if defined(__GNUC__)
155#pragma GCC diagnostic pop
156#endif
157
158#if defined(__clang__)
159#pragma clang diagnostic pop
160#endif
161
162#if defined(_MSC_VER)
163#pragma warning (pop)
164#endif
165
166#ifdef IMGUI_STB_NAMESPACE
167} // namespace ImStb
168using namespace IMGUI_STB_NAMESPACE;
169#endif
170
171//-----------------------------------------------------------------------------
172// [SECTION] Style functions
173//-----------------------------------------------------------------------------
174
175void ImGui::StyleColorsDark(ImGuiStyle* dst)
176{
177 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
178 ImVec4* colors = style->Colors;
179
180 colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
181 colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
182 colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
183 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
184 colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
185 colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
186 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
187 colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
188 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
189 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
190 colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
191 colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
192 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
193 colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
194 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
195 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
196 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
197 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
198 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
199 colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
200 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
201 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
202 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
203 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
204 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
205 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
206 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
207 colors[ImGuiCol_Separator] = colors[ImGuiCol_Border];
208 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
209 colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
210 colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.25f);
211 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
212 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
213 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
214 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
215 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
216 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
217 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
218 colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
219 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
220 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
221 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
222 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
223 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
224 colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
225 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
226 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
227 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
228}
229
230void ImGui::StyleColorsClassic(ImGuiStyle* dst)
231{
232 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
233 ImVec4* colors = style->Colors;
234
235 colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
236 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
237 colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.70f);
238 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
239 colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
240 colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
241 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
242 colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
243 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
244 colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
245 colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
246 colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
247 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
248 colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
249 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
250 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
251 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
252 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
253 colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
254 colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
255 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
256 colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
257 colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
258 colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
259 colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
260 colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
261 colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
262 colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 0.60f);
263 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
264 colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
265 colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.16f);
266 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
267 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
268 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
269 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
270 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
271 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
272 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
273 colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
274 colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
275 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
276 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
277 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
278 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
279 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
280 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
281 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
282 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
283}
284
285// Those light colors are better suited with a thicker font than the default one + FrameBorder
286void ImGui::StyleColorsLight(ImGuiStyle* dst)
287{
288 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
289 ImVec4* colors = style->Colors;
290
291 colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
292 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
293 colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
294 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
295 colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
296 colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
297 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
298 colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
299 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
300 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
301 colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
302 colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
303 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
304 colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
305 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
306 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
307 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
308 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
309 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
310 colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
311 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
312 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
313 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
314 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
315 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
316 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
317 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
318 colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 0.62f);
319 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
320 colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
321 colors[ImGuiCol_ResizeGrip] = ImVec4(0.80f, 0.80f, 0.80f, 0.56f);
322 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
323 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
324 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.90f);
325 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
326 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
327 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
328 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
329 colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
330 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
331 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
332 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
333 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
334 colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
335 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
336 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
337 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
338 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
339}
340
341//-----------------------------------------------------------------------------
342// [SECTION] ImDrawList
343//-----------------------------------------------------------------------------
344
345ImDrawListSharedData::ImDrawListSharedData()
346{
347 Font = NULL;
348 FontSize = 0.0f;
349 CurveTessellationTol = 0.0f;
350 CircleSegmentMaxError = 0.0f;
351 ClipRectFullscreen = ImVec4(-8192.0f, -8192.0f, +8192.0f, +8192.0f);
352 InitialFlags = ImDrawListFlags_None;
353
354 // Lookup tables
355 for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++)
356 {
357 const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx);
358 ArcFastVtx[i] = ImVec2(ImCos(a), ImSin(a));
359 }
360 memset(CircleSegmentCounts, 0, sizeof(CircleSegmentCounts)); // This will be set by SetCircleSegmentMaxError()
361 TexUvLines = NULL;
362}
363
364void ImDrawListSharedData::SetCircleSegmentMaxError(float max_error)
365{
366 if (CircleSegmentMaxError == max_error)
367 return;
368 CircleSegmentMaxError = max_error;
369 for (int i = 0; i < IM_ARRAYSIZE(CircleSegmentCounts); i++)
370 {
371 const float radius = i + 1.0f;
372 const int segment_count = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError);
373 CircleSegmentCounts[i] = (ImU8)ImMin(segment_count, 255);
374 }
375}
376
377// Initialize before use in a new frame. We always have a command ready in the buffer.
378void ImDrawList::_ResetForNewFrame()
379{
380 // Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory.
381 // (those should be IM_STATIC_ASSERT() in theory but with our pre C++11 setup the whole check doesn't compile with GCC)
382 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, ClipRect) == 0);
383 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, TextureId) == sizeof(ImVec4));
384 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureID));
385
386 CmdBuffer.resize(0);
387 IdxBuffer.resize(0);
388 VtxBuffer.resize(0);
389 Flags = _Data->InitialFlags;
390 memset(&_CmdHeader, 0, sizeof(_CmdHeader));
391 _VtxCurrentIdx = 0;
392 _VtxWritePtr = NULL;
393 _IdxWritePtr = NULL;
394 _ClipRectStack.resize(0);
395 _TextureIdStack.resize(0);
396 _Path.resize(0);
397 _Splitter.Clear();
398 CmdBuffer.push_back(ImDrawCmd());
399}
400
401void ImDrawList::_ClearFreeMemory()
402{
403 CmdBuffer.clear();
404 IdxBuffer.clear();
405 VtxBuffer.clear();
406 Flags = ImDrawListFlags_None;
407 _VtxCurrentIdx = 0;
408 _VtxWritePtr = NULL;
409 _IdxWritePtr = NULL;
410 _ClipRectStack.clear();
411 _TextureIdStack.clear();
412 _Path.clear();
413 _Splitter.ClearFreeMemory();
414}
415
416ImDrawList* ImDrawList::CloneOutput() const
417{
418 ImDrawList* dst = IM_NEW(ImDrawList(_Data));
419 dst->CmdBuffer = CmdBuffer;
420 dst->IdxBuffer = IdxBuffer;
421 dst->VtxBuffer = VtxBuffer;
422 dst->Flags = Flags;
423 return dst;
424}
425
426void ImDrawList::AddDrawCmd()
427{
428 ImDrawCmd draw_cmd;
429 draw_cmd.ClipRect = _CmdHeader.ClipRect; // Same as calling ImDrawCmd_HeaderCopy()
430 draw_cmd.TextureId = _CmdHeader.TextureId;
431 draw_cmd.VtxOffset = _CmdHeader.VtxOffset;
432 draw_cmd.IdxOffset = IdxBuffer.Size;
433
434 IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
435 CmdBuffer.push_back(draw_cmd);
436}
437
438// Pop trailing draw command (used before merging or presenting to user)
439// Note that this leaves the ImDrawList in a state unfit for further commands, as most code assume that CmdBuffer.Size > 0 && CmdBuffer.back().UserCallback == NULL
440void ImDrawList::_PopUnusedDrawCmd()
441{
442 if (CmdBuffer.Size == 0)
443 return;
444 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
445 if (curr_cmd->ElemCount == 0 && curr_cmd->UserCallback == NULL)
446 CmdBuffer.pop_back();
447}
448
449void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
450{
451 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
452 IM_ASSERT(curr_cmd->UserCallback == NULL);
453 if (curr_cmd->ElemCount != 0)
454 {
455 AddDrawCmd();
456 curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
457 }
458 curr_cmd->UserCallback = callback;
459 curr_cmd->UserCallbackData = callback_data;
460
461 AddDrawCmd(); // Force a new command after us (see comment below)
462}
463
464// Compare ClipRect, TextureId and VtxOffset with a single memcmp()
465#define ImDrawCmd_HeaderSize (IM_OFFSETOF(ImDrawCmd, VtxOffset) + sizeof(unsigned int))
466#define ImDrawCmd_HeaderCompare(CMD_LHS, CMD_RHS) (memcmp(CMD_LHS, CMD_RHS, ImDrawCmd_HeaderSize)) // Compare ClipRect, TextureId, VtxOffset
467#define ImDrawCmd_HeaderCopy(CMD_DST, CMD_SRC) (memcpy(CMD_DST, CMD_SRC, ImDrawCmd_HeaderSize)) // Copy ClipRect, TextureId, VtxOffset
468
469// Our scheme may appears a bit unusual, basically we want the most-common calls AddLine AddRect etc. to not have to perform any check so we always have a command ready in the stack.
470// The cost of figuring out if a new command has to be added or if we can merge is paid in those Update** functions only.
471void ImDrawList::_OnChangedClipRect()
472{
473 // If current command is used with different settings we need to add a new command
474 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
475 if (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &_CmdHeader.ClipRect, sizeof(ImVec4)) != 0)
476 {
477 AddDrawCmd();
478 return;
479 }
480 IM_ASSERT(curr_cmd->UserCallback == NULL);
481
482 // Try to merge with previous command if it matches, else use current command
483 ImDrawCmd* prev_cmd = curr_cmd - 1;
484 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
485 {
486 CmdBuffer.pop_back();
487 return;
488 }
489
490 curr_cmd->ClipRect = _CmdHeader.ClipRect;
491}
492
493void ImDrawList::_OnChangedTextureID()
494{
495 // If current command is used with different settings we need to add a new command
496 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
497 if (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != _CmdHeader.TextureId)
498 {
499 AddDrawCmd();
500 return;
501 }
502 IM_ASSERT(curr_cmd->UserCallback == NULL);
503
504 // Try to merge with previous command if it matches, else use current command
505 ImDrawCmd* prev_cmd = curr_cmd - 1;
506 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
507 {
508 CmdBuffer.pop_back();
509 return;
510 }
511
512 curr_cmd->TextureId = _CmdHeader.TextureId;
513}
514
515void ImDrawList::_OnChangedVtxOffset()
516{
517 // We don't need to compare curr_cmd->VtxOffset != _CmdHeader.VtxOffset because we know it'll be different at the time we call this.
518 _VtxCurrentIdx = 0;
519 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
520 //IM_ASSERT(curr_cmd->VtxOffset != _CmdHeader.VtxOffset); // See #3349
521 if (curr_cmd->ElemCount != 0)
522 {
523 AddDrawCmd();
524 return;
525 }
526 IM_ASSERT(curr_cmd->UserCallback == NULL);
527 curr_cmd->VtxOffset = _CmdHeader.VtxOffset;
528}
529
530// Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
531void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect)
532{
533 ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
534 if (intersect_with_current_clip_rect)
535 {
536 ImVec4 current = _CmdHeader.ClipRect;
537 if (cr.x < current.x) cr.x = current.x;
538 if (cr.y < current.y) cr.y = current.y;
539 if (cr.z > current.z) cr.z = current.z;
540 if (cr.w > current.w) cr.w = current.w;
541 }
542 cr.z = ImMax(cr.x, cr.z);
543 cr.w = ImMax(cr.y, cr.w);
544
545 _ClipRectStack.push_back(cr);
546 _CmdHeader.ClipRect = cr;
547 _OnChangedClipRect();
548}
549
550void ImDrawList::PushClipRectFullScreen()
551{
552 PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
553}
554
555void ImDrawList::PopClipRect()
556{
557 _ClipRectStack.pop_back();
558 _CmdHeader.ClipRect = (_ClipRectStack.Size == 0) ? _Data->ClipRectFullscreen : _ClipRectStack.Data[_ClipRectStack.Size - 1];
559 _OnChangedClipRect();
560}
561
562void ImDrawList::PushTextureID(ImTextureID texture_id)
563{
564 _TextureIdStack.push_back(texture_id);
565 _CmdHeader.TextureId = texture_id;
566 _OnChangedTextureID();
567}
568
569void ImDrawList::PopTextureID()
570{
571 _TextureIdStack.pop_back();
572 _CmdHeader.TextureId = (_TextureIdStack.Size == 0) ? (ImTextureID)NULL : _TextureIdStack.Data[_TextureIdStack.Size - 1];
573 _OnChangedTextureID();
574}
575
576// Reserve space for a number of vertices and indices.
577// You must finish filling your reserved data before calling PrimReserve() again, as it may reallocate or
578// submit the intermediate results. PrimUnreserve() can be used to release unused allocations.
579void ImDrawList::PrimReserve(int idx_count, int vtx_count)
580{
581 // Large mesh support (when enabled)
582 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
583 if (sizeof(ImDrawIdx) == 2 && (_VtxCurrentIdx + vtx_count >= (1 << 16)) && (Flags & ImDrawListFlags_AllowVtxOffset))
584 {
585 // FIXME: In theory we should be testing that vtx_count <64k here.
586 // In practice, RenderText() relies on reserving ahead for a worst case scenario so it is currently useful for us
587 // to not make that check until we rework the text functions to handle clipping and large horizontal lines better.
588 _CmdHeader.VtxOffset = VtxBuffer.Size;
589 _OnChangedVtxOffset();
590 }
591
592 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
593 draw_cmd->ElemCount += idx_count;
594
595 int vtx_buffer_old_size = VtxBuffer.Size;
596 VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
597 _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
598
599 int idx_buffer_old_size = IdxBuffer.Size;
600 IdxBuffer.resize(idx_buffer_old_size + idx_count);
601 _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
602}
603
604// Release the a number of reserved vertices/indices from the end of the last reservation made with PrimReserve().
605void ImDrawList::PrimUnreserve(int idx_count, int vtx_count)
606{
607 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
608
609 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
610 draw_cmd->ElemCount -= idx_count;
611 VtxBuffer.shrink(VtxBuffer.Size - vtx_count);
612 IdxBuffer.shrink(IdxBuffer.Size - idx_count);
613}
614
615// Fully unrolled with inline call to keep our debug builds decently fast.
616void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
617{
618 ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
619 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
620 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
621 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
622 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
623 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
624 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
625 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
626 _VtxWritePtr += 4;
627 _VtxCurrentIdx += 4;
628 _IdxWritePtr += 6;
629}
630
631void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
632{
633 ImVec2 b(c.x, a.y), d(a.x, c.y), uv_b(uv_c.x, uv_a.y), uv_d(uv_a.x, uv_c.y);
634 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
635 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
636 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
637 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
638 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
639 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
640 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
641 _VtxWritePtr += 4;
642 _VtxCurrentIdx += 4;
643 _IdxWritePtr += 6;
644}
645
646void ImDrawList::PrimQuadUV(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col)
647{
648 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
649 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
650 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
651 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
652 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
653 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
654 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
655 _VtxWritePtr += 4;
656 _VtxCurrentIdx += 4;
657 _IdxWritePtr += 6;
658}
659
660// On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superfluous function calls to optimize debug/non-inlined builds.
661// Those macros expects l-values.
662#define IM_NORMALIZE2F_OVER_ZERO(VX,VY) do { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = 1.0f / ImSqrt(d2); VX *= inv_len; VY *= inv_len; } } while (0)
663#define IM_FIXNORMAL2F(VX,VY) do { float d2 = VX*VX + VY*VY; if (d2 < 0.5f) d2 = 0.5f; float inv_lensq = 1.0f / d2; VX *= inv_lensq; VY *= inv_lensq; } while (0)
664
665// TODO: Thickness anti-aliased lines cap are missing their AA fringe.
666// We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds.
667void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, bool closed, float thickness)
668{
669 if (points_count < 2)
670 return;
671
672 const ImVec2 opaque_uv = _Data->TexUvWhitePixel;
673 const int count = closed ? points_count : points_count - 1; // The number of line segments we need to draw
674 const bool thick_line = (thickness > 1.0f);
675
676 if (Flags & ImDrawListFlags_AntiAliasedLines)
677 {
678 // Anti-aliased stroke
679 const float AA_SIZE = 1.0f;
680 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
681
682 // Thicknesses <1.0 should behave like thickness 1.0
683 thickness = ImMax(thickness, 1.0f);
684 const int integer_thickness = (int)thickness;
685 const float fractional_thickness = thickness - integer_thickness;
686
687 // Do we want to draw this line using a texture?
688 // - For now, only draw integer-width lines using textures to avoid issues with the way scaling occurs, could be improved.
689 // - If AA_SIZE is not 1.0f we cannot use the texture path.
690 const bool use_texture = (Flags & ImDrawListFlags_AntiAliasedLinesUseTex) && (integer_thickness < IM_DRAWLIST_TEX_LINES_WIDTH_MAX) && (fractional_thickness <= 0.00001f);
691
692 // We should never hit this, because NewFrame() doesn't set ImDrawListFlags_AntiAliasedLinesUseTex unless ImFontAtlasFlags_NoBakedLines is off
693 IM_ASSERT_PARANOID(!use_texture || !(_Data->Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines));
694
695 const int idx_count = use_texture ? (count * 6) : (thick_line ? count * 18 : count * 12);
696 const int vtx_count = use_texture ? (points_count * 2) : (thick_line ? points_count * 4 : points_count * 3);
697 PrimReserve(idx_count, vtx_count);
698
699 // Temporary buffer
700 // The first <points_count> items are normals at each line point, then after that there are either 2 or 4 temp points for each line point
701 ImVec2* temp_normals = (ImVec2*)alloca(points_count * ((use_texture || !thick_line) ? 3 : 5) * sizeof(ImVec2)); //-V630
702 ImVec2* temp_points = temp_normals + points_count;
703
704 // Calculate normals (tangents) for each line segment
705 for (int i1 = 0; i1 < count; i1++)
706 {
707 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
708 float dx = points[i2].x - points[i1].x;
709 float dy = points[i2].y - points[i1].y;
710 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
711 temp_normals[i1].x = dy;
712 temp_normals[i1].y = -dx;
713 }
714 if (!closed)
715 temp_normals[points_count - 1] = temp_normals[points_count - 2];
716
717 // If we are drawing a one-pixel-wide line without a texture, or a textured line of any width, we only need 2 or 3 vertices per point
718 if (use_texture || !thick_line)
719 {
720 // [PATH 1] Texture-based lines (thick or non-thick)
721 // [PATH 2] Non texture-based lines (non-thick)
722
723 // The width of the geometry we need to draw - this is essentially <thickness> pixels for the line itself, plus "one pixel" for AA.
724 // - In the texture-based path, we don't use AA_SIZE here because the +1 is tied to the generated texture
725 // (see ImFontAtlasBuildRenderLinesTexData() function), and so alternate values won't work without changes to that code.
726 // - In the non texture-based paths, we would allow AA_SIZE to potentially be != 1.0f with a patch (e.g. fringe_scale patch to
727 // allow scaling geometry while preserving one-screen-pixel AA fringe).
728 const float half_draw_size = use_texture ? ((thickness * 0.5f) + 1) : AA_SIZE;
729
730 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
731 if (!closed)
732 {
733 temp_points[0] = points[0] + temp_normals[0] * half_draw_size;
734 temp_points[1] = points[0] - temp_normals[0] * half_draw_size;
735 temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * half_draw_size;
736 temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * half_draw_size;
737 }
738
739 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
740 // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
741 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
742 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
743 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
744 {
745 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; // i2 is the second point of the line segment
746 const unsigned int idx2 = ((i1 + 1) == points_count) ? _VtxCurrentIdx : (idx1 + (use_texture ? 2 : 3)); // Vertex index for end of segment
747
748 // Average normals
749 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
750 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
751 IM_FIXNORMAL2F(dm_x, dm_y);
752 dm_x *= half_draw_size; // dm_x, dm_y are offset to the outer edge of the AA area
753 dm_y *= half_draw_size;
754
755 // Add temporary vertexes for the outer edges
756 ImVec2* out_vtx = &temp_points[i2 * 2];
757 out_vtx[0].x = points[i2].x + dm_x;
758 out_vtx[0].y = points[i2].y + dm_y;
759 out_vtx[1].x = points[i2].x - dm_x;
760 out_vtx[1].y = points[i2].y - dm_y;
761
762 if (use_texture)
763 {
764 // Add indices for two triangles
765 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 1); // Right tri
766 _IdxWritePtr[3] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[4] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Left tri
767 _IdxWritePtr += 6;
768 }
769 else
770 {
771 // Add indexes for four triangles
772 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); // Right tri 1
773 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Right tri 2
774 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); // Left tri 1
775 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); // Left tri 2
776 _IdxWritePtr += 12;
777 }
778
779 idx1 = idx2;
780 }
781
782 // Add vertexes for each point on the line
783 if (use_texture)
784 {
785 // If we're using textures we only need to emit the left/right edge vertices
786 ImVec4 tex_uvs = _Data->TexUvLines[integer_thickness];
787 if (fractional_thickness != 0.0f)
788 {
789 const ImVec4 tex_uvs_1 = _Data->TexUvLines[integer_thickness + 1];
790 tex_uvs.x = tex_uvs.x + (tex_uvs_1.x - tex_uvs.x) * fractional_thickness; // inlined ImLerp()
791 tex_uvs.y = tex_uvs.y + (tex_uvs_1.y - tex_uvs.y) * fractional_thickness;
792 tex_uvs.z = tex_uvs.z + (tex_uvs_1.z - tex_uvs.z) * fractional_thickness;
793 tex_uvs.w = tex_uvs.w + (tex_uvs_1.w - tex_uvs.w) * fractional_thickness;
794 }
795 ImVec2 tex_uv0(tex_uvs.x, tex_uvs.y);
796 ImVec2 tex_uv1(tex_uvs.z, tex_uvs.w);
797 for (int i = 0; i < points_count; i++)
798 {
799 _VtxWritePtr[0].pos = temp_points[i * 2 + 0]; _VtxWritePtr[0].uv = tex_uv0; _VtxWritePtr[0].col = col; // Left-side outer edge
800 _VtxWritePtr[1].pos = temp_points[i * 2 + 1]; _VtxWritePtr[1].uv = tex_uv1; _VtxWritePtr[1].col = col; // Right-side outer edge
801 _VtxWritePtr += 2;
802 }
803 }
804 else
805 {
806 // If we're not using a texture, we need the center vertex as well
807 for (int i = 0; i < points_count; i++)
808 {
809 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col; // Center of line
810 _VtxWritePtr[1].pos = temp_points[i * 2 + 0]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col_trans; // Left-side outer edge
811 _VtxWritePtr[2].pos = temp_points[i * 2 + 1]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col_trans; // Right-side outer edge
812 _VtxWritePtr += 3;
813 }
814 }
815 }
816 else
817 {
818 // [PATH 2] Non texture-based lines (thick): we need to draw the solid line core and thus require four vertices per point
819 const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
820
821 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
822 if (!closed)
823 {
824 const int points_last = points_count - 1;
825 temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
826 temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
827 temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
828 temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
829 temp_points[points_last * 4 + 0] = points[points_last] + temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
830 temp_points[points_last * 4 + 1] = points[points_last] + temp_normals[points_last] * (half_inner_thickness);
831 temp_points[points_last * 4 + 2] = points[points_last] - temp_normals[points_last] * (half_inner_thickness);
832 temp_points[points_last * 4 + 3] = points[points_last] - temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
833 }
834
835 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
836 // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
837 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
838 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
839 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
840 {
841 const int i2 = (i1 + 1) == points_count ? 0 : (i1 + 1); // i2 is the second point of the line segment
842 const unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : (idx1 + 4); // Vertex index for end of segment
843
844 // Average normals
845 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
846 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
847 IM_FIXNORMAL2F(dm_x, dm_y);
848 float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE);
849 float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE);
850 float dm_in_x = dm_x * half_inner_thickness;
851 float dm_in_y = dm_y * half_inner_thickness;
852
853 // Add temporary vertices
854 ImVec2* out_vtx = &temp_points[i2 * 4];
855 out_vtx[0].x = points[i2].x + dm_out_x;
856 out_vtx[0].y = points[i2].y + dm_out_y;
857 out_vtx[1].x = points[i2].x + dm_in_x;
858 out_vtx[1].y = points[i2].y + dm_in_y;
859 out_vtx[2].x = points[i2].x - dm_in_x;
860 out_vtx[2].y = points[i2].y - dm_in_y;
861 out_vtx[3].x = points[i2].x - dm_out_x;
862 out_vtx[3].y = points[i2].y - dm_out_y;
863
864 // Add indexes
865 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2);
866 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 1);
867 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0);
868 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1);
869 _IdxWritePtr[12] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[13] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[14] = (ImDrawIdx)(idx1 + 3);
870 _IdxWritePtr[15] = (ImDrawIdx)(idx1 + 3); _IdxWritePtr[16] = (ImDrawIdx)(idx2 + 3); _IdxWritePtr[17] = (ImDrawIdx)(idx2 + 2);
871 _IdxWritePtr += 18;
872
873 idx1 = idx2;
874 }
875
876 // Add vertices
877 for (int i = 0; i < points_count; i++)
878 {
879 _VtxWritePtr[0].pos = temp_points[i * 4 + 0]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col_trans;
880 _VtxWritePtr[1].pos = temp_points[i * 4 + 1]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
881 _VtxWritePtr[2].pos = temp_points[i * 4 + 2]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
882 _VtxWritePtr[3].pos = temp_points[i * 4 + 3]; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col_trans;
883 _VtxWritePtr += 4;
884 }
885 }
886 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
887 }
888 else
889 {
890 // [PATH 4] Non texture-based, Non anti-aliased lines
891 const int idx_count = count * 6;
892 const int vtx_count = count * 4; // FIXME-OPT: Not sharing edges
893 PrimReserve(idx_count, vtx_count);
894
895 for (int i1 = 0; i1 < count; i1++)
896 {
897 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
898 const ImVec2& p1 = points[i1];
899 const ImVec2& p2 = points[i2];
900
901 float dx = p2.x - p1.x;
902 float dy = p2.y - p1.y;
903 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
904 dx *= (thickness * 0.5f);
905 dy *= (thickness * 0.5f);
906
907 _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col;
908 _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
909 _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
910 _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col;
911 _VtxWritePtr += 4;
912
913 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + 2);
914 _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx + 2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx + 3);
915 _IdxWritePtr += 6;
916 _VtxCurrentIdx += 4;
917 }
918 }
919}
920
921// We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
922void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
923{
924 if (points_count < 3)
925 return;
926
927 const ImVec2 uv = _Data->TexUvWhitePixel;
928
929 if (Flags & ImDrawListFlags_AntiAliasedFill)
930 {
931 // Anti-aliased Fill
932 const float AA_SIZE = 1.0f;
933 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
934 const int idx_count = (points_count - 2)*3 + points_count * 6;
935 const int vtx_count = (points_count * 2);
936 PrimReserve(idx_count, vtx_count);
937
938 // Add indexes for fill
939 unsigned int vtx_inner_idx = _VtxCurrentIdx;
940 unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
941 for (int i = 2; i < points_count; i++)
942 {
943 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + ((i - 1) << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (i << 1));
944 _IdxWritePtr += 3;
945 }
946
947 // Compute normals
948 ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2)); //-V630
949 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
950 {
951 const ImVec2& p0 = points[i0];
952 const ImVec2& p1 = points[i1];
953 float dx = p1.x - p0.x;
954 float dy = p1.y - p0.y;
955 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
956 temp_normals[i0].x = dy;
957 temp_normals[i0].y = -dx;
958 }
959
960 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
961 {
962 // Average normals
963 const ImVec2& n0 = temp_normals[i0];
964 const ImVec2& n1 = temp_normals[i1];
965 float dm_x = (n0.x + n1.x) * 0.5f;
966 float dm_y = (n0.y + n1.y) * 0.5f;
967 IM_FIXNORMAL2F(dm_x, dm_y);
968 dm_x *= AA_SIZE * 0.5f;
969 dm_y *= AA_SIZE * 0.5f;
970
971 // Add vertices
972 _VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner
973 _VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer
974 _VtxWritePtr += 2;
975
976 // Add indexes for fringes
977 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
978 _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
979 _IdxWritePtr += 6;
980 }
981 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
982 }
983 else
984 {
985 // Non Anti-aliased Fill
986 const int idx_count = (points_count - 2)*3;
987 const int vtx_count = points_count;
988 PrimReserve(idx_count, vtx_count);
989 for (int i = 0; i < vtx_count; i++)
990 {
991 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
992 _VtxWritePtr++;
993 }
994 for (int i = 2; i < points_count; i++)
995 {
996 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + i - 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + i);
997 _IdxWritePtr += 3;
998 }
999 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
1000 }
1001}
1002
1003void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12)
1004{
1005 if (radius == 0.0f || a_min_of_12 > a_max_of_12)
1006 {
1007 _Path.push_back(center);
1008 return;
1009 }
1010
1011 // For legacy reason the PathArcToFast() always takes angles where 2*PI is represented by 12,
1012 // but it is possible to set IM_DRAWLIST_ARCFAST_TESSELATION_MULTIPLIER to a higher value. This should compile to a no-op otherwise.
1013#if IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER != 1
1014 a_min_of_12 *= IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER;
1015 a_max_of_12 *= IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER;
1016#endif
1017
1018 _Path.reserve(_Path.Size + (a_max_of_12 - a_min_of_12 + 1));
1019 for (int a = a_min_of_12; a <= a_max_of_12; a++)
1020 {
1021 const ImVec2& c = _Data->ArcFastVtx[a % IM_ARRAYSIZE(_Data->ArcFastVtx)];
1022 _Path.push_back(ImVec2(center.x + c.x * radius, center.y + c.y * radius));
1023 }
1024}
1025
1026void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
1027{
1028 if (radius == 0.0f)
1029 {
1030 _Path.push_back(center);
1031 return;
1032 }
1033
1034 // Note that we are adding a point at both a_min and a_max.
1035 // If you are trying to draw a full closed circle you don't want the overlapping points!
1036 _Path.reserve(_Path.Size + (num_segments + 1));
1037 for (int i = 0; i <= num_segments; i++)
1038 {
1039 const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
1040 _Path.push_back(ImVec2(center.x + ImCos(a) * radius, center.y + ImSin(a) * radius));
1041 }
1042}
1043
1044ImVec2 ImBezierCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t)
1045{
1046 float u = 1.0f - t;
1047 float w1 = u*u*u;
1048 float w2 = 3*u*u*t;
1049 float w3 = 3*u*t*t;
1050 float w4 = t*t*t;
1051 return ImVec2(w1*p1.x + w2*p2.x + w3*p3.x + w4*p4.x, w1*p1.y + w2*p2.y + w3*p3.y + w4*p4.y);
1052}
1053
1054// Closely mimics BezierClosestPointCasteljauStep() in imgui.cpp
1055static void PathBezierToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level)
1056{
1057 float dx = x4 - x1;
1058 float dy = y4 - y1;
1059 float d2 = ((x2 - x4) * dy - (y2 - y4) * dx);
1060 float d3 = ((x3 - x4) * dy - (y3 - y4) * dx);
1061 d2 = (d2 >= 0) ? d2 : -d2;
1062 d3 = (d3 >= 0) ? d3 : -d3;
1063 if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy))
1064 {
1065 path->push_back(ImVec2(x4, y4));
1066 }
1067 else if (level < 10)
1068 {
1069 float x12 = (x1 + x2)*0.5f, y12 = (y1 + y2)*0.5f;
1070 float x23 = (x2 + x3)*0.5f, y23 = (y2 + y3)*0.5f;
1071 float x34 = (x3 + x4)*0.5f, y34 = (y3 + y4)*0.5f;
1072 float x123 = (x12 + x23)*0.5f, y123 = (y12 + y23)*0.5f;
1073 float x234 = (x23 + x34)*0.5f, y234 = (y23 + y34)*0.5f;
1074 float x1234 = (x123 + x234)*0.5f, y1234 = (y123 + y234)*0.5f;
1075 PathBezierToCasteljau(path, x1, y1, x12, y12, x123, y123, x1234, y1234, tess_tol, level + 1);
1076 PathBezierToCasteljau(path, x1234, y1234, x234, y234, x34, y34, x4, y4, tess_tol, level + 1);
1077 }
1078}
1079
1080void ImDrawList::PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
1081{
1082 ImVec2 p1 = _Path.back();
1083 if (num_segments == 0)
1084 {
1085 PathBezierToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0); // Auto-tessellated
1086 }
1087 else
1088 {
1089 float t_step = 1.0f / (float)num_segments;
1090 for (int i_step = 1; i_step <= num_segments; i_step++)
1091 _Path.push_back(ImBezierCalc(p1, p2, p3, p4, t_step * i_step));
1092 }
1093}
1094
1095void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDrawCornerFlags rounding_corners)
1096{
1097 rounding = ImMin(rounding, ImFabs(b.x - a.x) * ( ((rounding_corners & ImDrawCornerFlags_Top) == ImDrawCornerFlags_Top) || ((rounding_corners & ImDrawCornerFlags_Bot) == ImDrawCornerFlags_Bot) ? 0.5f : 1.0f ) - 1.0f);
1098 rounding = ImMin(rounding, ImFabs(b.y - a.y) * ( ((rounding_corners & ImDrawCornerFlags_Left) == ImDrawCornerFlags_Left) || ((rounding_corners & ImDrawCornerFlags_Right) == ImDrawCornerFlags_Right) ? 0.5f : 1.0f ) - 1.0f);
1099
1100 if (rounding <= 0.0f || rounding_corners == 0)
1101 {
1102 PathLineTo(a);
1103 PathLineTo(ImVec2(b.x, a.y));
1104 PathLineTo(b);
1105 PathLineTo(ImVec2(a.x, b.y));
1106 }
1107 else
1108 {
1109 const float rounding_tl = (rounding_corners & ImDrawCornerFlags_TopLeft) ? rounding : 0.0f;
1110 const float rounding_tr = (rounding_corners & ImDrawCornerFlags_TopRight) ? rounding : 0.0f;
1111 const float rounding_br = (rounding_corners & ImDrawCornerFlags_BotRight) ? rounding : 0.0f;
1112 const float rounding_bl = (rounding_corners & ImDrawCornerFlags_BotLeft) ? rounding : 0.0f;
1113 PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
1114 PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
1115 PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
1116 PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
1117 }
1118}
1119
1120void ImDrawList::AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness)
1121{
1122 if ((col & IM_COL32_A_MASK) == 0)
1123 return;
1124 PathLineTo(p1 + ImVec2(0.5f, 0.5f));
1125 PathLineTo(p2 + ImVec2(0.5f, 0.5f));
1126 PathStroke(col, false, thickness);
1127}
1128
1129// p_min = upper-left, p_max = lower-right
1130// Note we don't render 1 pixels sized rectangles properly.
1131void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners, float thickness)
1132{
1133 if ((col & IM_COL32_A_MASK) == 0)
1134 return;
1135 if (Flags & ImDrawListFlags_AntiAliasedLines)
1136 PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.50f, 0.50f), rounding, rounding_corners);
1137 else
1138 PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.49f, 0.49f), rounding, rounding_corners); // Better looking lower-right corner and rounded non-AA shapes.
1139 PathStroke(col, true, thickness);
1140}
1141
1142void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners)
1143{
1144 if ((col & IM_COL32_A_MASK) == 0)
1145 return;
1146 if (rounding > 0.0f)
1147 {
1148 PathRect(p_min, p_max, rounding, rounding_corners);
1149 PathFillConvex(col);
1150 }
1151 else
1152 {
1153 PrimReserve(6, 4);
1154 PrimRect(p_min, p_max, col);
1155 }
1156}
1157
1158// p_min = upper-left, p_max = lower-right
1159void ImDrawList::AddRectFilledMultiColor(const ImVec2& p_min, const ImVec2& p_max, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left)
1160{
1161 if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
1162 return;
1163
1164 const ImVec2 uv = _Data->TexUvWhitePixel;
1165 PrimReserve(6, 4);
1166 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2));
1167 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 3));
1168 PrimWriteVtx(p_min, uv, col_upr_left);
1169 PrimWriteVtx(ImVec2(p_max.x, p_min.y), uv, col_upr_right);
1170 PrimWriteVtx(p_max, uv, col_bot_right);
1171 PrimWriteVtx(ImVec2(p_min.x, p_max.y), uv, col_bot_left);
1172}
1173
1174void ImDrawList::AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness)
1175{
1176 if ((col & IM_COL32_A_MASK) == 0)
1177 return;
1178
1179 PathLineTo(p1);
1180 PathLineTo(p2);
1181 PathLineTo(p3);
1182 PathLineTo(p4);
1183 PathStroke(col, true, thickness);
1184}
1185
1186void ImDrawList::AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col)
1187{
1188 if ((col & IM_COL32_A_MASK) == 0)
1189 return;
1190
1191 PathLineTo(p1);
1192 PathLineTo(p2);
1193 PathLineTo(p3);
1194 PathLineTo(p4);
1195 PathFillConvex(col);
1196}
1197
1198void ImDrawList::AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness)
1199{
1200 if ((col & IM_COL32_A_MASK) == 0)
1201 return;
1202
1203 PathLineTo(p1);
1204 PathLineTo(p2);
1205 PathLineTo(p3);
1206 PathStroke(col, true, thickness);
1207}
1208
1209void ImDrawList::AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col)
1210{
1211 if ((col & IM_COL32_A_MASK) == 0)
1212 return;
1213
1214 PathLineTo(p1);
1215 PathLineTo(p2);
1216 PathLineTo(p3);
1217 PathFillConvex(col);
1218}
1219
1220void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
1221{
1222 if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
1223 return;
1224
1225 // Obtain segment count
1226 if (num_segments <= 0)
1227 {
1228 // Automatic segment count
1229 const int radius_idx = (int)radius - 1;
1230 if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
1231 num_segments = _Data->CircleSegmentCounts[radius_idx]; // Use cached value
1232 else
1233 num_segments = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
1234 }
1235 else
1236 {
1237 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
1238 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
1239 }
1240
1241 // Because we are filling a closed shape we remove 1 from the count of segments/points
1242 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1243 if (num_segments == 12)
1244 PathArcToFast(center, radius - 0.5f, 0, 12 - 1);
1245 else
1246 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
1247 PathStroke(col, true, thickness);
1248}
1249
1250void ImDrawList::AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
1251{
1252 if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
1253 return;
1254
1255 // Obtain segment count
1256 if (num_segments <= 0)
1257 {
1258 // Automatic segment count
1259 const int radius_idx = (int)radius - 1;
1260 if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
1261 num_segments = _Data->CircleSegmentCounts[radius_idx]; // Use cached value
1262 else
1263 num_segments = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
1264 }
1265 else
1266 {
1267 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
1268 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
1269 }
1270
1271 // Because we are filling a closed shape we remove 1 from the count of segments/points
1272 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1273 if (num_segments == 12)
1274 PathArcToFast(center, radius, 0, 12 - 1);
1275 else
1276 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
1277 PathFillConvex(col);
1278}
1279
1280// Guaranteed to honor 'num_segments'
1281void ImDrawList::AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
1282{
1283 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1284 return;
1285
1286 // Because we are filling a closed shape we remove 1 from the count of segments/points
1287 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1288 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
1289 PathStroke(col, true, thickness);
1290}
1291
1292// Guaranteed to honor 'num_segments'
1293void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
1294{
1295 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1296 return;
1297
1298 // Because we are filling a closed shape we remove 1 from the count of segments/points
1299 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1300 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
1301 PathFillConvex(col);
1302}
1303
1304// Cubic Bezier takes 4 controls points
1305void ImDrawList::AddBezierCurve(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments)
1306{
1307 if ((col & IM_COL32_A_MASK) == 0)
1308 return;
1309
1310 PathLineTo(p1);
1311 PathBezierCurveTo(p2, p3, p4, num_segments);
1312 PathStroke(col, false, thickness);
1313}
1314
1315void ImDrawList::AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end, float wrap_width, const ImVec4* cpu_fine_clip_rect)
1316{
1317 if ((col & IM_COL32_A_MASK) == 0)
1318 return;
1319
1320 if (text_end == NULL)
1321 text_end = text_begin + strlen(text_begin);
1322 if (text_begin == text_end)
1323 return;
1324
1325 // Pull default font/size from the shared ImDrawListSharedData instance
1326 if (font == NULL)
1327 font = _Data->Font;
1328 if (font_size == 0.0f)
1329 font_size = _Data->FontSize;
1330
1331 IM_ASSERT(font->ContainerAtlas->TexID == _CmdHeader.TextureId); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
1332
1333 ImVec4 clip_rect = _CmdHeader.ClipRect;
1334 if (cpu_fine_clip_rect)
1335 {
1336 clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
1337 clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
1338 clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
1339 clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
1340 }
1341 font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
1342}
1343
1344void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
1345{
1346 AddText(NULL, 0.0f, pos, col, text_begin, text_end);
1347}
1348
1349void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col)
1350{
1351 if ((col & IM_COL32_A_MASK) == 0)
1352 return;
1353
1354 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
1355 if (push_texture_id)
1356 PushTextureID(user_texture_id);
1357
1358 PrimReserve(6, 4);
1359 PrimRectUV(p_min, p_max, uv_min, uv_max, col);
1360
1361 if (push_texture_id)
1362 PopTextureID();
1363}
1364
1365void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& uv1, const ImVec2& uv2, const ImVec2& uv3, const ImVec2& uv4, ImU32 col)
1366{
1367 if ((col & IM_COL32_A_MASK) == 0)
1368 return;
1369
1370 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
1371 if (push_texture_id)
1372 PushTextureID(user_texture_id);
1373
1374 PrimReserve(6, 4);
1375 PrimQuadUV(p1, p2, p3, p4, uv1, uv2, uv3, uv4, col);
1376
1377 if (push_texture_id)
1378 PopTextureID();
1379}
1380
1381void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners)
1382{
1383 if ((col & IM_COL32_A_MASK) == 0)
1384 return;
1385
1386 if (rounding <= 0.0f || (rounding_corners & ImDrawCornerFlags_All) == 0)
1387 {
1388 AddImage(user_texture_id, p_min, p_max, uv_min, uv_max, col);
1389 return;
1390 }
1391
1392 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
1393 if (push_texture_id)
1394 PushTextureID(user_texture_id);
1395
1396 int vert_start_idx = VtxBuffer.Size;
1397 PathRect(p_min, p_max, rounding, rounding_corners);
1398 PathFillConvex(col);
1399 int vert_end_idx = VtxBuffer.Size;
1400 ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, p_min, p_max, uv_min, uv_max, true);
1401
1402 if (push_texture_id)
1403 PopTextureID();
1404}
1405
1406
1407//-----------------------------------------------------------------------------
1408// [SECTION] ImDrawListSplitter
1409//-----------------------------------------------------------------------------
1410// FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap..
1411//-----------------------------------------------------------------------------
1412
1413void ImDrawListSplitter::ClearFreeMemory()
1414{
1415 for (int i = 0; i < _Channels.Size; i++)
1416 {
1417 if (i == _Current)
1418 memset(&_Channels[i], 0, sizeof(_Channels[i])); // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again
1419 _Channels[i]._CmdBuffer.clear();
1420 _Channels[i]._IdxBuffer.clear();
1421 }
1422 _Current = 0;
1423 _Count = 1;
1424 _Channels.clear();
1425}
1426
1427void ImDrawListSplitter::Split(ImDrawList* draw_list, int channels_count)
1428{
1429 IM_ASSERT(_Current == 0 && _Count <= 1 && "Nested channel splitting is not supported. Please use separate instances of ImDrawListSplitter.");
1430 int old_channels_count = _Channels.Size;
1431 if (old_channels_count < channels_count)
1432 _Channels.resize(channels_count);
1433 _Count = channels_count;
1434
1435 // Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer
1436 // The content of Channels[0] at this point doesn't matter. We clear it to make state tidy in a debugger but we don't strictly need to.
1437 // When we switch to the next channel, we'll copy draw_list->_CmdBuffer/_IdxBuffer into Channels[0] and then Channels[1] into draw_list->CmdBuffer/_IdxBuffer
1438 memset(&_Channels[0], 0, sizeof(ImDrawChannel));
1439 for (int i = 1; i < channels_count; i++)
1440 {
1441 if (i >= old_channels_count)
1442 {
1443 IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
1444 }
1445 else
1446 {
1447 _Channels[i]._CmdBuffer.resize(0);
1448 _Channels[i]._IdxBuffer.resize(0);
1449 }
1450 if (_Channels[i]._CmdBuffer.Size == 0)
1451 {
1452 ImDrawCmd draw_cmd;
1453 ImDrawCmd_HeaderCopy(&draw_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
1454 _Channels[i]._CmdBuffer.push_back(draw_cmd);
1455 }
1456 }
1457}
1458
1459void ImDrawListSplitter::Merge(ImDrawList* draw_list)
1460{
1461 // Note that we never use or rely on _Channels.Size because it is merely a buffer that we never shrink back to 0 to keep all sub-buffers ready for use.
1462 if (_Count <= 1)
1463 return;
1464
1465 SetCurrentChannel(draw_list, 0);
1466 draw_list->_PopUnusedDrawCmd();
1467
1468 // Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command.
1469 int new_cmd_buffer_count = 0;
1470 int new_idx_buffer_count = 0;
1471 ImDrawCmd* last_cmd = (_Count > 0 && draw_list->CmdBuffer.Size > 0) ? &draw_list->CmdBuffer.back() : NULL;
1472 int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0;
1473 for (int i = 1; i < _Count; i++)
1474 {
1475 ImDrawChannel& ch = _Channels[i];
1476
1477 // Equivalent of PopUnusedDrawCmd() for this channel's cmdbuffer and except we don't need to test for UserCallback.
1478 if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0)
1479 ch._CmdBuffer.pop_back();
1480
1481 if (ch._CmdBuffer.Size > 0 && last_cmd != NULL)
1482 {
1483 ImDrawCmd* next_cmd = &ch._CmdBuffer[0];
1484 if (ImDrawCmd_HeaderCompare(last_cmd, next_cmd) == 0 && last_cmd->UserCallback == NULL && next_cmd->UserCallback == NULL)
1485 {
1486 // Merge previous channel last draw command with current channel first draw command if matching.
1487 last_cmd->ElemCount += next_cmd->ElemCount;
1488 idx_offset += next_cmd->ElemCount;
1489 ch._CmdBuffer.erase(ch._CmdBuffer.Data); // FIXME-OPT: Improve for multiple merges.
1490 }
1491 }
1492 if (ch._CmdBuffer.Size > 0)
1493 last_cmd = &ch._CmdBuffer.back();
1494 new_cmd_buffer_count += ch._CmdBuffer.Size;
1495 new_idx_buffer_count += ch._IdxBuffer.Size;
1496 for (int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++)
1497 {
1498 ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset;
1499 idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount;
1500 }
1501 }
1502 draw_list->CmdBuffer.resize(draw_list->CmdBuffer.Size + new_cmd_buffer_count);
1503 draw_list->IdxBuffer.resize(draw_list->IdxBuffer.Size + new_idx_buffer_count);
1504
1505 // Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices)
1506 ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count;
1507 ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count;
1508 for (int i = 1; i < _Count; i++)
1509 {
1510 ImDrawChannel& ch = _Channels[i];
1511 if (int sz = ch._CmdBuffer.Size) { memcpy(cmd_write, ch._CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
1512 if (int sz = ch._IdxBuffer.Size) { memcpy(idx_write, ch._IdxBuffer.Data, sz * sizeof(ImDrawIdx)); idx_write += sz; }
1513 }
1514 draw_list->_IdxWritePtr = idx_write;
1515
1516 // Ensure there's always a non-callback draw command trailing the command-buffer
1517 if (draw_list->CmdBuffer.Size == 0 || draw_list->CmdBuffer.back().UserCallback != NULL)
1518 draw_list->AddDrawCmd();
1519
1520 // If current command is used with different settings we need to add a new command
1521 ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
1522 if (curr_cmd->ElemCount == 0)
1523 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
1524 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
1525 draw_list->AddDrawCmd();
1526
1527 _Count = 1;
1528}
1529
1530void ImDrawListSplitter::SetCurrentChannel(ImDrawList* draw_list, int idx)
1531{
1532 IM_ASSERT(idx >= 0 && idx < _Count);
1533 if (_Current == idx)
1534 return;
1535
1536 // Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap()
1537 memcpy(&_Channels.Data[_Current]._CmdBuffer, &draw_list->CmdBuffer, sizeof(draw_list->CmdBuffer));
1538 memcpy(&_Channels.Data[_Current]._IdxBuffer, &draw_list->IdxBuffer, sizeof(draw_list->IdxBuffer));
1539 _Current = idx;
1540 memcpy(&draw_list->CmdBuffer, &_Channels.Data[idx]._CmdBuffer, sizeof(draw_list->CmdBuffer));
1541 memcpy(&draw_list->IdxBuffer, &_Channels.Data[idx]._IdxBuffer, sizeof(draw_list->IdxBuffer));
1542 draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size;
1543
1544 // If current command is used with different settings we need to add a new command
1545 ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
1546 if (curr_cmd->ElemCount == 0)
1547 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
1548 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
1549 draw_list->AddDrawCmd();
1550}
1551
1552//-----------------------------------------------------------------------------
1553// [SECTION] ImDrawData
1554//-----------------------------------------------------------------------------
1555
1556// For backward compatibility: convert all buffers from indexed to de-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
1557void ImDrawData::DeIndexAllBuffers()
1558{
1559 ImVector<ImDrawVert> new_vtx_buffer;
1560 TotalVtxCount = TotalIdxCount = 0;
1561 for (int i = 0; i < CmdListsCount; i++)
1562 {
1563 ImDrawList* cmd_list = CmdLists[i];
1564 if (cmd_list->IdxBuffer.empty())
1565 continue;
1566 new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
1567 for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
1568 new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
1569 cmd_list->VtxBuffer.swap(new_vtx_buffer);
1570 cmd_list->IdxBuffer.resize(0);
1571 TotalVtxCount += cmd_list->VtxBuffer.Size;
1572 }
1573}
1574
1575// Helper to scale the ClipRect field of each ImDrawCmd.
1576// Use if your final output buffer is at a different scale than draw_data->DisplaySize,
1577// or if there is a difference between your window resolution and framebuffer resolution.
1578void ImDrawData::ScaleClipRects(const ImVec2& fb_scale)
1579{
1580 for (int i = 0; i < CmdListsCount; i++)
1581 {
1582 ImDrawList* cmd_list = CmdLists[i];
1583 for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
1584 {
1585 ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
1586 cmd->ClipRect = ImVec4(cmd->ClipRect.x * fb_scale.x, cmd->ClipRect.y * fb_scale.y, cmd->ClipRect.z * fb_scale.x, cmd->ClipRect.w * fb_scale.y);
1587 }
1588 }
1589}
1590
1591//-----------------------------------------------------------------------------
1592// [SECTION] Helpers ShadeVertsXXX functions
1593//-----------------------------------------------------------------------------
1594
1595// Generic linear color gradient, write to RGB fields, leave A untouched.
1596void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
1597{
1598 ImVec2 gradient_extent = gradient_p1 - gradient_p0;
1599 float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
1600 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1601 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1602 const int col0_r = (int)(col0 >> IM_COL32_R_SHIFT) & 0xFF;
1603 const int col0_g = (int)(col0 >> IM_COL32_G_SHIFT) & 0xFF;
1604 const int col0_b = (int)(col0 >> IM_COL32_B_SHIFT) & 0xFF;
1605 const int col_delta_r = ((int)(col1 >> IM_COL32_R_SHIFT) & 0xFF) - col0_r;
1606 const int col_delta_g = ((int)(col1 >> IM_COL32_G_SHIFT) & 0xFF) - col0_g;
1607 const int col_delta_b = ((int)(col1 >> IM_COL32_B_SHIFT) & 0xFF) - col0_b;
1608 for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
1609 {
1610 float d = ImDot(vert->pos - gradient_p0, gradient_extent);
1611 float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
1612 int r = (int)(col0_r + col_delta_r * t);
1613 int g = (int)(col0_g + col_delta_g * t);
1614 int b = (int)(col0_b + col_delta_b * t);
1615 vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
1616 }
1617}
1618
1619// Distribute UV over (a, b) rectangle
1620void ImGui::ShadeVertsLinearUV(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp)
1621{
1622 const ImVec2 size = b - a;
1623 const ImVec2 uv_size = uv_b - uv_a;
1624 const ImVec2 scale = ImVec2(
1625 size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
1626 size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
1627
1628 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1629 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1630 if (clamp)
1631 {
1632 const ImVec2 min = ImMin(uv_a, uv_b);
1633 const ImVec2 max = ImMax(uv_a, uv_b);
1634 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1635 vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
1636 }
1637 else
1638 {
1639 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1640 vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
1641 }
1642}
1643
1644//-----------------------------------------------------------------------------
1645// [SECTION] ImFontConfig
1646//-----------------------------------------------------------------------------
1647
1648ImFontConfig::ImFontConfig()
1649{
1650 FontData = NULL;
1651 FontDataSize = 0;
1652 FontDataOwnedByAtlas = true;
1653 FontNo = 0;
1654 SizePixels = 0.0f;
1655 OversampleH = 3; // FIXME: 2 may be a better default?
1656 OversampleV = 1;
1657 PixelSnapH = false;
1658 GlyphExtraSpacing = ImVec2(0.0f, 0.0f);
1659 GlyphOffset = ImVec2(0.0f, 0.0f);
1660 GlyphRanges = NULL;
1661 GlyphMinAdvanceX = 0.0f;
1662 GlyphMaxAdvanceX = FLT_MAX;
1663 MergeMode = false;
1664 RasterizerFlags = 0x00;
1665 RasterizerMultiply = 1.0f;
1666 EllipsisChar = (ImWchar)-1;
1667 memset(Name, 0, sizeof(Name));
1668 DstFont = NULL;
1669}
1670
1671//-----------------------------------------------------------------------------
1672// [SECTION] ImFontAtlas
1673//-----------------------------------------------------------------------------
1674
1675// A work of art lies ahead! (. = white layer, X = black layer, others are blank)
1676// The 2x2 white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes.
1677const int FONT_ATLAS_DEFAULT_TEX_DATA_W = 108; // Actual texture will be 2 times that + 1 spacing.
1678const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
1679static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
1680{
1681 "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX "
1682 "..- -X.....X- X.X - X.X -X.....X - X.....X- X..X "
1683 "--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X "
1684 "X - X.X - X.....X - X.....X -X...X - X...X- X..X "
1685 "XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X "
1686 "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX "
1687 "X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX "
1688 "X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX "
1689 "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X "
1690 "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X"
1691 "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X"
1692 "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X"
1693 "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X"
1694 "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X"
1695 "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X"
1696 "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X"
1697 "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X "
1698 "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X "
1699 "X.X X..X - -X.......X- X.......X - XX XX - - X..........X "
1700 "XX X..X - - X.....X - X.....X - X.X X.X - - X........X "
1701 " X..X - X...X - X...X - X..X X..X - - X........X "
1702 " XX - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX "
1703 "------------ - X - X -X.....................X- ------------------"
1704 " ----------------------------------- X...XXXXXXXXXXXXX...X - "
1705 " - X..X X..X - "
1706 " - X.X X.X - "
1707 " - XX XX - "
1708};
1709
1710static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
1711{
1712 // Pos ........ Size ......... Offset ......
1713 { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
1714 { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
1715 { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
1716 { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
1717 { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
1718 { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
1719 { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
1720 { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
1721};
1722
1723ImFontAtlas::ImFontAtlas()
1724{
1725 Locked = false;
1726 Flags = ImFontAtlasFlags_None;
1727 TexID = (ImTextureID)NULL;
1728 TexDesiredWidth = 0;
1729 TexGlyphPadding = 1;
1730
1731 TexPixelsAlpha8 = NULL;
1732 TexPixelsRGBA32 = NULL;
1733 TexWidth = TexHeight = 0;
1734 TexUvScale = ImVec2(0.0f, 0.0f);
1735 TexUvWhitePixel = ImVec2(0.0f, 0.0f);
1736 PackIdMouseCursors = PackIdLines = -1;
1737}
1738
1739ImFontAtlas::~ImFontAtlas()
1740{
1741 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1742 Clear();
1743}
1744
1745void ImFontAtlas::ClearInputData()
1746{
1747 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1748 for (int i = 0; i < ConfigData.Size; i++)
1749 if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
1750 {
1751 IM_FREE(ConfigData[i].FontData);
1752 ConfigData[i].FontData = NULL;
1753 }
1754
1755 // When clearing this we lose access to the font name and other information used to build the font.
1756 for (int i = 0; i < Fonts.Size; i++)
1757 if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size)
1758 {
1759 Fonts[i]->ConfigData = NULL;
1760 Fonts[i]->ConfigDataCount = 0;
1761 }
1762 ConfigData.clear();
1763 CustomRects.clear();
1764 PackIdMouseCursors = PackIdLines = -1;
1765}
1766
1767void ImFontAtlas::ClearTexData()
1768{
1769 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1770 if (TexPixelsAlpha8)
1771 IM_FREE(TexPixelsAlpha8);
1772 if (TexPixelsRGBA32)
1773 IM_FREE(TexPixelsRGBA32);
1774 TexPixelsAlpha8 = NULL;
1775 TexPixelsRGBA32 = NULL;
1776}
1777
1778void ImFontAtlas::ClearFonts()
1779{
1780 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1781 for (int i = 0; i < Fonts.Size; i++)
1782 IM_DELETE(Fonts[i]);
1783 Fonts.clear();
1784}
1785
1786void ImFontAtlas::Clear()
1787{
1788 ClearInputData();
1789 ClearTexData();
1790 ClearFonts();
1791}
1792
1793void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
1794{
1795 // Build atlas on demand
1796 if (TexPixelsAlpha8 == NULL)
1797 {
1798 if (ConfigData.empty())
1799 AddFontDefault();
1800 Build();
1801 }
1802
1803 *out_pixels = TexPixelsAlpha8;
1804 if (out_width) *out_width = TexWidth;
1805 if (out_height) *out_height = TexHeight;
1806 if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
1807}
1808
1809void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
1810{
1811 // Convert to RGBA32 format on demand
1812 // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
1813 if (!TexPixelsRGBA32)
1814 {
1815 unsigned char* pixels = NULL;
1816 GetTexDataAsAlpha8(&pixels, NULL, NULL);
1817 if (pixels)
1818 {
1819 TexPixelsRGBA32 = (unsigned int*)IM_ALLOC((size_t)TexWidth * (size_t)TexHeight * 4);
1820 const unsigned char* src = pixels;
1821 unsigned int* dst = TexPixelsRGBA32;
1822 for (int n = TexWidth * TexHeight; n > 0; n--)
1823 *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
1824 }
1825 }
1826
1827 *out_pixels = (unsigned char*)TexPixelsRGBA32;
1828 if (out_width) *out_width = TexWidth;
1829 if (out_height) *out_height = TexHeight;
1830 if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
1831}
1832
1833ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
1834{
1835 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1836 IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
1837 IM_ASSERT(font_cfg->SizePixels > 0.0f);
1838
1839 // Create new font
1840 if (!font_cfg->MergeMode)
1841 Fonts.push_back(IM_NEW(ImFont));
1842 else
1843 IM_ASSERT(!Fonts.empty() && "Cannot use MergeMode for the first font"); // When using MergeMode make sure that a font has already been added before. You can use ImGui::GetIO().Fonts->AddFontDefault() to add the default imgui font.
1844
1845 ConfigData.push_back(*font_cfg);
1846 ImFontConfig& new_font_cfg = ConfigData.back();
1847 if (new_font_cfg.DstFont == NULL)
1848 new_font_cfg.DstFont = Fonts.back();
1849 if (!new_font_cfg.FontDataOwnedByAtlas)
1850 {
1851 new_font_cfg.FontData = IM_ALLOC(new_font_cfg.FontDataSize);
1852 new_font_cfg.FontDataOwnedByAtlas = true;
1853 memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
1854 }
1855
1856 if (new_font_cfg.DstFont->EllipsisChar == (ImWchar)-1)
1857 new_font_cfg.DstFont->EllipsisChar = font_cfg->EllipsisChar;
1858
1859 // Invalidate texture
1860 ClearTexData();
1861 return new_font_cfg.DstFont;
1862}
1863
1864// Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
1865static unsigned int stb_decompress_length(const unsigned char* input);
1866static unsigned int stb_decompress(unsigned char* output, const unsigned char* input, unsigned int length);
1867static const char* GetDefaultCompressedFontDataTTFBase85();
1868static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; }
1869static void Decode85(const unsigned char* src, unsigned char* dst)
1870{
1871 while (*src)
1872 {
1873 unsigned int tmp = Decode85Byte(src[0]) + 85 * (Decode85Byte(src[1]) + 85 * (Decode85Byte(src[2]) + 85 * (Decode85Byte(src[3]) + 85 * Decode85Byte(src[4]))));
1874 dst[0] = ((tmp >> 0) & 0xFF); dst[1] = ((tmp >> 8) & 0xFF); dst[2] = ((tmp >> 16) & 0xFF); dst[3] = ((tmp >> 24) & 0xFF); // We can't assume little-endianness.
1875 src += 5;
1876 dst += 4;
1877 }
1878}
1879
1880// Load embedded ProggyClean.ttf at size 13, disable oversampling
1881ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
1882{
1883 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1884 if (!font_cfg_template)
1885 {
1886 font_cfg.OversampleH = font_cfg.OversampleV = 1;
1887 font_cfg.PixelSnapH = true;
1888 }
1889 if (font_cfg.SizePixels <= 0.0f)
1890 font_cfg.SizePixels = 13.0f * 1.0f;
1891 if (font_cfg.Name[0] == '\0')
1892 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels);
1893 font_cfg.EllipsisChar = (ImWchar)0x0085;
1894 font_cfg.GlyphOffset.y = 1.0f * IM_FLOOR(font_cfg.SizePixels / 13.0f); // Add +1 offset per 13 units
1895
1896 const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
1897 const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
1898 ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges);
1899 return font;
1900}
1901
1902ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1903{
1904 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1905 size_t data_size = 0;
1906 void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
1907 if (!data)
1908 {
1909 IM_ASSERT_USER_ERROR(0, "Could not load font file!");
1910 return NULL;
1911 }
1912 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1913 if (font_cfg.Name[0] == '\0')
1914 {
1915 // Store a short copy of filename into into the font name for convenience
1916 const char* p;
1917 for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
1918 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
1919 }
1920 return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges);
1921}
1922
1923// NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build().
1924ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1925{
1926 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1927 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1928 IM_ASSERT(font_cfg.FontData == NULL);
1929 font_cfg.FontData = ttf_data;
1930 font_cfg.FontDataSize = ttf_size;
1931 font_cfg.SizePixels = size_pixels;
1932 if (glyph_ranges)
1933 font_cfg.GlyphRanges = glyph_ranges;
1934 return AddFont(&font_cfg);
1935}
1936
1937ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1938{
1939 const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
1940 unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size);
1941 stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
1942
1943 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1944 IM_ASSERT(font_cfg.FontData == NULL);
1945 font_cfg.FontDataOwnedByAtlas = true;
1946 return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
1947}
1948
1949ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
1950{
1951 int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
1952 void* compressed_ttf = IM_ALLOC((size_t)compressed_ttf_size);
1953 Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
1954 ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
1955 IM_FREE(compressed_ttf);
1956 return font;
1957}
1958
1959int ImFontAtlas::AddCustomRectRegular(int width, int height)
1960{
1961 IM_ASSERT(width > 0 && width <= 0xFFFF);
1962 IM_ASSERT(height > 0 && height <= 0xFFFF);
1963 ImFontAtlasCustomRect r;
1964 r.Width = (unsigned short)width;
1965 r.Height = (unsigned short)height;
1966 CustomRects.push_back(r);
1967 return CustomRects.Size - 1; // Return index
1968}
1969
1970int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset)
1971{
1972#ifdef IMGUI_USE_WCHAR32
1973 IM_ASSERT(id <= IM_UNICODE_CODEPOINT_MAX);
1974#endif
1975 IM_ASSERT(font != NULL);
1976 IM_ASSERT(width > 0 && width <= 0xFFFF);
1977 IM_ASSERT(height > 0 && height <= 0xFFFF);
1978 ImFontAtlasCustomRect r;
1979 r.Width = (unsigned short)width;
1980 r.Height = (unsigned short)height;
1981 r.GlyphID = id;
1982 r.GlyphAdvanceX = advance_x;
1983 r.GlyphOffset = offset;
1984 r.Font = font;
1985 CustomRects.push_back(r);
1986 return CustomRects.Size - 1; // Return index
1987}
1988
1989void ImFontAtlas::CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) const
1990{
1991 IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates
1992 IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed
1993 *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
1994 *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
1995}
1996
1997bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
1998{
1999 if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
2000 return false;
2001 if (Flags & ImFontAtlasFlags_NoMouseCursors)
2002 return false;
2003
2004 IM_ASSERT(PackIdMouseCursors != -1);
2005 ImFontAtlasCustomRect* r = GetCustomRectByIndex(PackIdMouseCursors);
2006 ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r->X, (float)r->Y);
2007 ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
2008 *out_size = size;
2009 *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
2010 out_uv_border[0] = (pos) * TexUvScale;
2011 out_uv_border[1] = (pos + size) * TexUvScale;
2012 pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
2013 out_uv_fill[0] = (pos) * TexUvScale;
2014 out_uv_fill[1] = (pos + size) * TexUvScale;
2015 return true;
2016}
2017
2018bool ImFontAtlas::Build()
2019{
2020 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2021 return ImFontAtlasBuildWithStbTruetype(this);
2022}
2023
2024void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor)
2025{
2026 for (unsigned int i = 0; i < 256; i++)
2027 {
2028 unsigned int value = (unsigned int)(i * in_brighten_factor);
2029 out_table[i] = value > 255 ? 255 : (value & 0xFF);
2030 }
2031}
2032
2033void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride)
2034{
2035 unsigned char* data = pixels + x + y * stride;
2036 for (int j = h; j > 0; j--, data += stride)
2037 for (int i = 0; i < w; i++)
2038 data[i] = table[data[i]];
2039}
2040
2041// Temporary data for one source font (multiple source fonts can be merged into one destination ImFont)
2042// (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.)
2043struct ImFontBuildSrcData
2044{
2045 stbtt_fontinfo FontInfo;
2046 stbtt_pack_range PackRange; // Hold the list of codepoints to pack (essentially points to Codepoints.Data)
2047 stbrp_rect* Rects; // Rectangle to pack. We first fill in their size and the packer will give us their position.
2048 stbtt_packedchar* PackedChars; // Output glyphs
2049 const ImWchar* SrcRanges; // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF)
2050 int DstIndex; // Index into atlas->Fonts[] and dst_tmp_array[]
2051 int GlyphsHighest; // Highest requested codepoint
2052 int GlyphsCount; // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font)
2053 ImBitVector GlyphsSet; // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB)
2054 ImVector<int> GlyphsList; // Glyph codepoints list (flattened version of GlyphsMap)
2055};
2056
2057// Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont)
2058struct ImFontBuildDstData
2059{
2060 int SrcCount; // Number of source fonts targeting this destination font.
2061 int GlyphsHighest;
2062 int GlyphsCount;
2063 ImBitVector GlyphsSet; // This is used to resolve collision when multiple sources are merged into a same destination font.
2064};
2065
2066static void UnpackBitVectorToFlatIndexList(const ImBitVector* in, ImVector<int>* out)
2067{
2068 IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int));
2069 const ImU32* it_begin = in->Storage.begin();
2070 const ImU32* it_end = in->Storage.end();
2071 for (const ImU32* it = it_begin; it < it_end; it++)
2072 if (ImU32 entries_32 = *it)
2073 for (ImU32 bit_n = 0; bit_n < 32; bit_n++)
2074 if (entries_32 & ((ImU32)1 << bit_n))
2075 out->push_back((int)(((it - it_begin) << 5) + bit_n));
2076}
2077
2078bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
2079{
2080 IM_ASSERT(atlas->ConfigData.Size > 0);
2081
2082 ImFontAtlasBuildInit(atlas);
2083
2084 // Clear atlas
2085 atlas->TexID = (ImTextureID)NULL;
2086 atlas->TexWidth = atlas->TexHeight = 0;
2087 atlas->TexUvScale = ImVec2(0.0f, 0.0f);
2088 atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
2089 atlas->ClearTexData();
2090
2091 // Temporary storage for building
2092 ImVector<ImFontBuildSrcData> src_tmp_array;
2093 ImVector<ImFontBuildDstData> dst_tmp_array;
2094 src_tmp_array.resize(atlas->ConfigData.Size);
2095 dst_tmp_array.resize(atlas->Fonts.Size);
2096 memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes());
2097 memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes());
2098
2099 // 1. Initialize font loading structure, check font data validity
2100 for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++)
2101 {
2102 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2103 ImFontConfig& cfg = atlas->ConfigData[src_i];
2104 IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
2105
2106 // Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices)
2107 src_tmp.DstIndex = -1;
2108 for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++)
2109 if (cfg.DstFont == atlas->Fonts[output_i])
2110 src_tmp.DstIndex = output_i;
2111 IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array?
2112 if (src_tmp.DstIndex == -1)
2113 return false;
2114
2115 // Initialize helper structure for font loading and verify that the TTF/OTF data is correct
2116 const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
2117 IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
2118 if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
2119 return false;
2120
2121 // Measure highest codepoints
2122 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
2123 src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault();
2124 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
2125 src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
2126 dst_tmp.SrcCount++;
2127 dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest);
2128 }
2129
2130 // 2. For every requested codepoint, check for their presence in the font data, and handle redundancy or overlaps between source fonts to avoid unused glyphs.
2131 int total_glyphs_count = 0;
2132 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2133 {
2134 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2135 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
2136 src_tmp.GlyphsSet.Create(src_tmp.GlyphsHighest + 1);
2137 if (dst_tmp.GlyphsSet.Storage.empty())
2138 dst_tmp.GlyphsSet.Create(dst_tmp.GlyphsHighest + 1);
2139
2140 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
2141 for (unsigned int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++)
2142 {
2143 if (dst_tmp.GlyphsSet.TestBit(codepoint)) // Don't overwrite existing glyphs. We could make this an option for MergeMode (e.g. MergeOverwrite==true)
2144 continue;
2145 if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint)) // It is actually in the font?
2146 continue;
2147
2148 // Add to avail set/counters
2149 src_tmp.GlyphsCount++;
2150 dst_tmp.GlyphsCount++;
2151 src_tmp.GlyphsSet.SetBit(codepoint);
2152 dst_tmp.GlyphsSet.SetBit(codepoint);
2153 total_glyphs_count++;
2154 }
2155 }
2156
2157 // 3. Unpack our bit map into a flat list (we now have all the Unicode points that we know are requested _and_ available _and_ not overlapping another)
2158 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2159 {
2160 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2161 src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount);
2162 UnpackBitVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList);
2163 src_tmp.GlyphsSet.Clear();
2164 IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount);
2165 }
2166 for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++)
2167 dst_tmp_array[dst_i].GlyphsSet.Clear();
2168 dst_tmp_array.clear();
2169
2170 // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
2171 // (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity)
2172 ImVector<stbrp_rect> buf_rects;
2173 ImVector<stbtt_packedchar> buf_packedchars;
2174 buf_rects.resize(total_glyphs_count);
2175 buf_packedchars.resize(total_glyphs_count);
2176 memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes());
2177 memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes());
2178
2179 // 4. Gather glyphs sizes so we can pack them in our virtual canvas.
2180 int total_surface = 0;
2181 int buf_rects_out_n = 0;
2182 int buf_packedchars_out_n = 0;
2183 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2184 {
2185 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2186 if (src_tmp.GlyphsCount == 0)
2187 continue;
2188
2189 src_tmp.Rects = &buf_rects[buf_rects_out_n];
2190 src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n];
2191 buf_rects_out_n += src_tmp.GlyphsCount;
2192 buf_packedchars_out_n += src_tmp.GlyphsCount;
2193
2194 // Convert our ranges in the format stb_truetype wants
2195 ImFontConfig& cfg = atlas->ConfigData[src_i];
2196 src_tmp.PackRange.font_size = cfg.SizePixels;
2197 src_tmp.PackRange.first_unicode_codepoint_in_range = 0;
2198 src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data;
2199 src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size;
2200 src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars;
2201 src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH;
2202 src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV;
2203
2204 // Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects)
2205 const float scale = (cfg.SizePixels > 0) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels);
2206 const int padding = atlas->TexGlyphPadding;
2207 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++)
2208 {
2209 int x0, y0, x1, y1;
2210 const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]);
2211 IM_ASSERT(glyph_index_in_font != 0);
2212 stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1);
2213 src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1);
2214 src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1);
2215 total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h;
2216 }
2217 }
2218
2219 // We need a width for the skyline algorithm, any width!
2220 // The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
2221 // User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface.
2222 const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1;
2223 atlas->TexHeight = 0;
2224 if (atlas->TexDesiredWidth > 0)
2225 atlas->TexWidth = atlas->TexDesiredWidth;
2226 else
2227 atlas->TexWidth = (surface_sqrt >= 4096 * 0.7f) ? 4096 : (surface_sqrt >= 2048 * 0.7f) ? 2048 : (surface_sqrt >= 1024 * 0.7f) ? 1024 : 512;
2228
2229 // 5. Start packing
2230 // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
2231 const int TEX_HEIGHT_MAX = 1024 * 32;
2232 stbtt_pack_context spc = {};
2233 stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL);
2234 ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
2235
2236 // 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point.
2237 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2238 {
2239 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2240 if (src_tmp.GlyphsCount == 0)
2241 continue;
2242
2243 stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount);
2244
2245 // Extend texture height and mark missing glyphs as non-packed so we won't render them.
2246 // FIXME: We are not handling packing failure here (would happen if we got off TEX_HEIGHT_MAX or if a single if larger than TexWidth?)
2247 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
2248 if (src_tmp.Rects[glyph_i].was_packed)
2249 atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h);
2250 }
2251
2252 // 7. Allocate texture
2253 atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
2254 atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
2255 atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(atlas->TexWidth * atlas->TexHeight);
2256 memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
2257 spc.pixels = atlas->TexPixelsAlpha8;
2258 spc.height = atlas->TexHeight;
2259
2260 // 8. Render/rasterize font characters into the texture
2261 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2262 {
2263 ImFontConfig& cfg = atlas->ConfigData[src_i];
2264 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2265 if (src_tmp.GlyphsCount == 0)
2266 continue;
2267
2268 stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects);
2269
2270 // Apply multiply operator
2271 if (cfg.RasterizerMultiply != 1.0f)
2272 {
2273 unsigned char multiply_table[256];
2274 ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
2275 stbrp_rect* r = &src_tmp.Rects[0];
2276 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++)
2277 if (r->was_packed)
2278 ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1);
2279 }
2280 src_tmp.Rects = NULL;
2281 }
2282
2283 // End packing
2284 stbtt_PackEnd(&spc);
2285 buf_rects.clear();
2286
2287 // 9. Setup ImFont and glyphs for runtime
2288 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2289 {
2290 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2291 if (src_tmp.GlyphsCount == 0)
2292 continue;
2293
2294 // When merging fonts with MergeMode=true:
2295 // - We can have multiple input fonts writing into a same destination font.
2296 // - dst_font->ConfigData is != from cfg which is our source configuration.
2297 ImFontConfig& cfg = atlas->ConfigData[src_i];
2298 ImFont* dst_font = cfg.DstFont;
2299
2300 const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels);
2301 int unscaled_ascent, unscaled_descent, unscaled_line_gap;
2302 stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
2303
2304 const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
2305 const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
2306 ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
2307 const float font_off_x = cfg.GlyphOffset.x;
2308 const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent);
2309
2310 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
2311 {
2312 // Register glyph
2313 const int codepoint = src_tmp.GlyphsList[glyph_i];
2314 const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i];
2315 stbtt_aligned_quad q;
2316 float unused_x = 0.0f, unused_y = 0.0f;
2317 stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &unused_x, &unused_y, &q, 0);
2318 dst_font->AddGlyph(&cfg, (ImWchar)codepoint, q.x0 + font_off_x, q.y0 + font_off_y, q.x1 + font_off_x, q.y1 + font_off_y, q.s0, q.t0, q.s1, q.t1, pc.xadvance);
2319 }
2320 }
2321
2322 // Cleanup temporary (ImVector doesn't honor destructor)
2323 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2324 src_tmp_array[src_i].~ImFontBuildSrcData();
2325
2326 ImFontAtlasBuildFinish(atlas);
2327 return true;
2328}
2329
2330void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
2331{
2332 if (!font_config->MergeMode)
2333 {
2334 font->ClearOutputData();
2335 font->FontSize = font_config->SizePixels;
2336 font->ConfigData = font_config;
2337 font->ConfigDataCount = 0;
2338 font->ContainerAtlas = atlas;
2339 font->Ascent = ascent;
2340 font->Descent = descent;
2341 }
2342 font->ConfigDataCount++;
2343}
2344
2345void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque)
2346{
2347 stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque;
2348 IM_ASSERT(pack_context != NULL);
2349
2350 ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects;
2351 IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
2352
2353 ImVector<stbrp_rect> pack_rects;
2354 pack_rects.resize(user_rects.Size);
2355 memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes());
2356 for (int i = 0; i < user_rects.Size; i++)
2357 {
2358 pack_rects[i].w = user_rects[i].Width;
2359 pack_rects[i].h = user_rects[i].Height;
2360 }
2361 stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
2362 for (int i = 0; i < pack_rects.Size; i++)
2363 if (pack_rects[i].was_packed)
2364 {
2365 user_rects[i].X = pack_rects[i].x;
2366 user_rects[i].Y = pack_rects[i].y;
2367 IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
2368 atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
2369 }
2370}
2371
2372void ImFontAtlasBuildRender1bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned char in_marker_pixel_value)
2373{
2374 IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
2375 IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
2376 unsigned char* out_pixel = atlas->TexPixelsAlpha8 + x + (y * atlas->TexWidth);
2377 for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w)
2378 for (int off_x = 0; off_x < w; off_x++)
2379 out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : 0x00;
2380}
2381
2382static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
2383{
2384 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdMouseCursors);
2385 IM_ASSERT(r->IsPacked());
2386
2387 const int w = atlas->TexWidth;
2388 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
2389 {
2390 // Render/copy pixels
2391 IM_ASSERT(r->Width == FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1 && r->Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
2392 const int x_for_white = r->X;
2393 const int x_for_black = r->X + FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
2394 ImFontAtlasBuildRender1bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', 0xFF);
2395 ImFontAtlasBuildRender1bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', 0xFF);
2396 }
2397 else
2398 {
2399 // Render 4 white pixels
2400 IM_ASSERT(r->Width == 2 && r->Height == 2);
2401 const int offset = (int)r->X + (int)r->Y * w;
2402 atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
2403 }
2404 atlas->TexUvWhitePixel = ImVec2((r->X + 0.5f) * atlas->TexUvScale.x, (r->Y + 0.5f) * atlas->TexUvScale.y);
2405}
2406
2407static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas)
2408{
2409 if (atlas->Flags & ImFontAtlasFlags_NoBakedLines)
2410 return;
2411
2412 // This generates a triangular shape in the texture, with the various line widths stacked on top of each other to allow interpolation between them
2413 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdLines);
2414 IM_ASSERT(r->IsPacked());
2415 for (unsigned int n = 0; n < IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1; n++) // +1 because of the zero-width row
2416 {
2417 // Each line consists of at least two empty pixels at the ends, with a line of solid pixels in the middle
2418 unsigned int y = n;
2419 unsigned int line_width = n;
2420 unsigned int pad_left = (r->Width - line_width) / 2;
2421 unsigned int pad_right = r->Width - (pad_left + line_width);
2422
2423 // Write each slice
2424 IM_ASSERT(pad_left + line_width + pad_right == r->Width && y < r->Height); // Make sure we're inside the texture bounds before we start writing pixels
2425 unsigned char* write_ptr = &atlas->TexPixelsAlpha8[r->X + ((r->Y + y) * atlas->TexWidth)];
2426 memset(write_ptr, 0x00, pad_left);
2427 memset(write_ptr + pad_left, 0xFF, line_width);
2428 memset(write_ptr + pad_left + line_width, 0x00, pad_right);
2429
2430 // Calculate UVs for this line
2431 ImVec2 uv0 = ImVec2((float)(r->X + pad_left - 1), (float)(r->Y + y)) * atlas->TexUvScale;
2432 ImVec2 uv1 = ImVec2((float)(r->X + pad_left + line_width + 1), (float)(r->Y + y + 1)) * atlas->TexUvScale;
2433 float half_v = (uv0.y + uv1.y) * 0.5f; // Calculate a constant V in the middle of the row to avoid sampling artifacts
2434 atlas->TexUvLines[n] = ImVec4(uv0.x, half_v, uv1.x, half_v);
2435 }
2436}
2437
2438// Note: this is called / shared by both the stb_truetype and the FreeType builder
2439void ImFontAtlasBuildInit(ImFontAtlas* atlas)
2440{
2441 // Register texture region for mouse cursors or standard white pixels
2442 if (atlas->PackIdMouseCursors < 0)
2443 {
2444 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
2445 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H);
2446 else
2447 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(2, 2);
2448 }
2449
2450 // Register texture region for thick lines
2451 // The +2 here is to give space for the end caps, whilst height +1 is to accommodate the fact we have a zero-width row
2452 if (atlas->PackIdLines < 0)
2453 {
2454 if (!(atlas->Flags & ImFontAtlasFlags_NoBakedLines))
2455 atlas->PackIdLines = atlas->AddCustomRectRegular(IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 2, IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1);
2456 }
2457}
2458
2459// This is called/shared by both the stb_truetype and the FreeType builder.
2460void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
2461{
2462 // Render into our custom data blocks
2463 IM_ASSERT(atlas->TexPixelsAlpha8 != NULL);
2464 ImFontAtlasBuildRenderDefaultTexData(atlas);
2465 ImFontAtlasBuildRenderLinesTexData(atlas);
2466
2467 // Register custom rectangle glyphs
2468 for (int i = 0; i < atlas->CustomRects.Size; i++)
2469 {
2470 const ImFontAtlasCustomRect* r = &atlas->CustomRects[i];
2471 if (r->Font == NULL || r->GlyphID == 0)
2472 continue;
2473
2474 // Will ignore ImFontConfig settings: GlyphMinAdvanceX, GlyphMinAdvanceY, GlyphExtraSpacing, PixelSnapH
2475 IM_ASSERT(r->Font->ContainerAtlas == atlas);
2476 ImVec2 uv0, uv1;
2477 atlas->CalcCustomRectUV(r, &uv0, &uv1);
2478 r->Font->AddGlyph(NULL, (ImWchar)r->GlyphID, r->GlyphOffset.x, r->GlyphOffset.y, r->GlyphOffset.x + r->Width, r->GlyphOffset.y + r->Height, uv0.x, uv0.y, uv1.x, uv1.y, r->GlyphAdvanceX);
2479 }
2480
2481 // Build all fonts lookup tables
2482 for (int i = 0; i < atlas->Fonts.Size; i++)
2483 if (atlas->Fonts[i]->DirtyLookupTables)
2484 atlas->Fonts[i]->BuildLookupTable();
2485
2486 // Ellipsis character is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis).
2487 // However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character.
2488 // FIXME: Also note that 0x2026 is currently seldom included in our font ranges. Because of this we are more likely to use three individual dots.
2489 for (int i = 0; i < atlas->Fonts.size(); i++)
2490 {
2491 ImFont* font = atlas->Fonts[i];
2492 if (font->EllipsisChar != (ImWchar)-1)
2493 continue;
2494 const ImWchar ellipsis_variants[] = { (ImWchar)0x2026, (ImWchar)0x0085 };
2495 for (int j = 0; j < IM_ARRAYSIZE(ellipsis_variants); j++)
2496 if (font->FindGlyphNoFallback(ellipsis_variants[j]) != NULL) // Verify glyph exists
2497 {
2498 font->EllipsisChar = ellipsis_variants[j];
2499 break;
2500 }
2501 }
2502}
2503
2504// Retrieve list of range (2 int per range, values are inclusive)
2505const ImWchar* ImFontAtlas::GetGlyphRangesDefault()
2506{
2507 static const ImWchar ranges[] =
2508 {
2509 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2510 0,
2511 };
2512 return &ranges[0];
2513}
2514
2515const ImWchar* ImFontAtlas::GetGlyphRangesKorean()
2516{
2517 static const ImWchar ranges[] =
2518 {
2519 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2520 0x3131, 0x3163, // Korean alphabets
2521 0xAC00, 0xD7A3, // Korean characters
2522 0,
2523 };
2524 return &ranges[0];
2525}
2526
2527const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull()
2528{
2529 static const ImWchar ranges[] =
2530 {
2531 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2532 0x2000, 0x206F, // General Punctuation
2533 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2534 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2535 0xFF00, 0xFFEF, // Half-width characters
2536 0x4e00, 0x9FAF, // CJK Ideograms
2537 0,
2538 };
2539 return &ranges[0];
2540}
2541
2542static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
2543{
2544 for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
2545 {
2546 out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
2547 base_codepoint += accumulative_offsets[n];
2548 }
2549 out_ranges[0] = 0;
2550}
2551
2552//-------------------------------------------------------------------------
2553// [SECTION] ImFontAtlas glyph ranges helpers
2554//-------------------------------------------------------------------------
2555
2556const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
2557{
2558 // Store 2500 regularly used characters for Simplified Chinese.
2559 // Sourced from https://zh.wiktionary.org/wiki/%E9%99%84%E5%BD%95:%E7%8E%B0%E4%BB%A3%E6%B1%89%E8%AF%AD%E5%B8%B8%E7%94%A8%E5%AD%97%E8%A1%A8
2560 // This table covers 97.97% of all characters used during the month in July, 1987.
2561 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2562 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2563 static const short accumulative_offsets_from_0x4E00[] =
2564 {
2565 0,1,2,4,1,1,1,1,2,1,3,2,1,2,2,1,1,1,1,1,5,2,1,2,3,3,3,2,2,4,1,1,1,2,1,5,2,3,1,2,1,2,1,1,2,1,1,2,2,1,4,1,1,1,1,5,10,1,2,19,2,1,2,1,2,1,2,1,2,
2566 1,5,1,6,3,2,1,2,2,1,1,1,4,8,5,1,1,4,1,1,3,1,2,1,5,1,2,1,1,1,10,1,1,5,2,4,6,1,4,2,2,2,12,2,1,1,6,1,1,1,4,1,1,4,6,5,1,4,2,2,4,10,7,1,1,4,2,4,
2567 2,1,4,3,6,10,12,5,7,2,14,2,9,1,1,6,7,10,4,7,13,1,5,4,8,4,1,1,2,28,5,6,1,1,5,2,5,20,2,2,9,8,11,2,9,17,1,8,6,8,27,4,6,9,20,11,27,6,68,2,2,1,1,
2568 1,2,1,2,2,7,6,11,3,3,1,1,3,1,2,1,1,1,1,1,3,1,1,8,3,4,1,5,7,2,1,4,4,8,4,2,1,2,1,1,4,5,6,3,6,2,12,3,1,3,9,2,4,3,4,1,5,3,3,1,3,7,1,5,1,1,1,1,2,
2569 3,4,5,2,3,2,6,1,1,2,1,7,1,7,3,4,5,15,2,2,1,5,3,22,19,2,1,1,1,1,2,5,1,1,1,6,1,1,12,8,2,9,18,22,4,1,1,5,1,16,1,2,7,10,15,1,1,6,2,4,1,2,4,1,6,
2570 1,1,3,2,4,1,6,4,5,1,2,1,1,2,1,10,3,1,3,2,1,9,3,2,5,7,2,19,4,3,6,1,1,1,1,1,4,3,2,1,1,1,2,5,3,1,1,1,2,2,1,1,2,1,1,2,1,3,1,1,1,3,7,1,4,1,1,2,1,
2571 1,2,1,2,4,4,3,8,1,1,1,2,1,3,5,1,3,1,3,4,6,2,2,14,4,6,6,11,9,1,15,3,1,28,5,2,5,5,3,1,3,4,5,4,6,14,3,2,3,5,21,2,7,20,10,1,2,19,2,4,28,28,2,3,
2572 2,1,14,4,1,26,28,42,12,40,3,52,79,5,14,17,3,2,2,11,3,4,6,3,1,8,2,23,4,5,8,10,4,2,7,3,5,1,1,6,3,1,2,2,2,5,28,1,1,7,7,20,5,3,29,3,17,26,1,8,4,
2573 27,3,6,11,23,5,3,4,6,13,24,16,6,5,10,25,35,7,3,2,3,3,14,3,6,2,6,1,4,2,3,8,2,1,1,3,3,3,4,1,1,13,2,2,4,5,2,1,14,14,1,2,2,1,4,5,2,3,1,14,3,12,
2574 3,17,2,16,5,1,2,1,8,9,3,19,4,2,2,4,17,25,21,20,28,75,1,10,29,103,4,1,2,1,1,4,2,4,1,2,3,24,2,2,2,1,1,2,1,3,8,1,1,1,2,1,1,3,1,1,1,6,1,5,3,1,1,
2575 1,3,4,1,1,5,2,1,5,6,13,9,16,1,1,1,1,3,2,3,2,4,5,2,5,2,2,3,7,13,7,2,2,1,1,1,1,2,3,3,2,1,6,4,9,2,1,14,2,14,2,1,18,3,4,14,4,11,41,15,23,15,23,
2576 176,1,3,4,1,1,1,1,5,3,1,2,3,7,3,1,1,2,1,2,4,4,6,2,4,1,9,7,1,10,5,8,16,29,1,1,2,2,3,1,3,5,2,4,5,4,1,1,2,2,3,3,7,1,6,10,1,17,1,44,4,6,2,1,1,6,
2577 5,4,2,10,1,6,9,2,8,1,24,1,2,13,7,8,8,2,1,4,1,3,1,3,3,5,2,5,10,9,4,9,12,2,1,6,1,10,1,1,7,7,4,10,8,3,1,13,4,3,1,6,1,3,5,2,1,2,17,16,5,2,16,6,
2578 1,4,2,1,3,3,6,8,5,11,11,1,3,3,2,4,6,10,9,5,7,4,7,4,7,1,1,4,2,1,3,6,8,7,1,6,11,5,5,3,24,9,4,2,7,13,5,1,8,82,16,61,1,1,1,4,2,2,16,10,3,8,1,1,
2579 6,4,2,1,3,1,1,1,4,3,8,4,2,2,1,1,1,1,1,6,3,5,1,1,4,6,9,2,1,1,1,2,1,7,2,1,6,1,5,4,4,3,1,8,1,3,3,1,3,2,2,2,2,3,1,6,1,2,1,2,1,3,7,1,8,2,1,2,1,5,
2580 2,5,3,5,10,1,2,1,1,3,2,5,11,3,9,3,5,1,1,5,9,1,2,1,5,7,9,9,8,1,3,3,3,6,8,2,3,2,1,1,32,6,1,2,15,9,3,7,13,1,3,10,13,2,14,1,13,10,2,1,3,10,4,15,
2581 2,15,15,10,1,3,9,6,9,32,25,26,47,7,3,2,3,1,6,3,4,3,2,8,5,4,1,9,4,2,2,19,10,6,2,3,8,1,2,2,4,2,1,9,4,4,4,6,4,8,9,2,3,1,1,1,1,3,5,5,1,3,8,4,6,
2582 2,1,4,12,1,5,3,7,13,2,5,8,1,6,1,2,5,14,6,1,5,2,4,8,15,5,1,23,6,62,2,10,1,1,8,1,2,2,10,4,2,2,9,2,1,1,3,2,3,1,5,3,3,2,1,3,8,1,1,1,11,3,1,1,4,
2583 3,7,1,14,1,2,3,12,5,2,5,1,6,7,5,7,14,11,1,3,1,8,9,12,2,1,11,8,4,4,2,6,10,9,13,1,1,3,1,5,1,3,2,4,4,1,18,2,3,14,11,4,29,4,2,7,1,3,13,9,2,2,5,
2584 3,5,20,7,16,8,5,72,34,6,4,22,12,12,28,45,36,9,7,39,9,191,1,1,1,4,11,8,4,9,2,3,22,1,1,1,1,4,17,1,7,7,1,11,31,10,2,4,8,2,3,2,1,4,2,16,4,32,2,
2585 3,19,13,4,9,1,5,2,14,8,1,1,3,6,19,6,5,1,16,6,2,10,8,5,1,2,3,1,5,5,1,11,6,6,1,3,3,2,6,3,8,1,1,4,10,7,5,7,7,5,8,9,2,1,3,4,1,1,3,1,3,3,2,6,16,
2586 1,4,6,3,1,10,6,1,3,15,2,9,2,10,25,13,9,16,6,2,2,10,11,4,3,9,1,2,6,6,5,4,30,40,1,10,7,12,14,33,6,3,6,7,3,1,3,1,11,14,4,9,5,12,11,49,18,51,31,
2587 140,31,2,2,1,5,1,8,1,10,1,4,4,3,24,1,10,1,3,6,6,16,3,4,5,2,1,4,2,57,10,6,22,2,22,3,7,22,6,10,11,36,18,16,33,36,2,5,5,1,1,1,4,10,1,4,13,2,7,
2588 5,2,9,3,4,1,7,43,3,7,3,9,14,7,9,1,11,1,1,3,7,4,18,13,1,14,1,3,6,10,73,2,2,30,6,1,11,18,19,13,22,3,46,42,37,89,7,3,16,34,2,2,3,9,1,7,1,1,1,2,
2589 2,4,10,7,3,10,3,9,5,28,9,2,6,13,7,3,1,3,10,2,7,2,11,3,6,21,54,85,2,1,4,2,2,1,39,3,21,2,2,5,1,1,1,4,1,1,3,4,15,1,3,2,4,4,2,3,8,2,20,1,8,7,13,
2590 4,1,26,6,2,9,34,4,21,52,10,4,4,1,5,12,2,11,1,7,2,30,12,44,2,30,1,1,3,6,16,9,17,39,82,2,2,24,7,1,7,3,16,9,14,44,2,1,2,1,2,3,5,2,4,1,6,7,5,3,
2591 2,6,1,11,5,11,2,1,18,19,8,1,3,24,29,2,1,3,5,2,2,1,13,6,5,1,46,11,3,5,1,1,5,8,2,10,6,12,6,3,7,11,2,4,16,13,2,5,1,1,2,2,5,2,28,5,2,23,10,8,4,
2592 4,22,39,95,38,8,14,9,5,1,13,5,4,3,13,12,11,1,9,1,27,37,2,5,4,4,63,211,95,2,2,2,1,3,5,2,1,1,2,2,1,1,1,3,2,4,1,2,1,1,5,2,2,1,1,2,3,1,3,1,1,1,
2593 3,1,4,2,1,3,6,1,1,3,7,15,5,3,2,5,3,9,11,4,2,22,1,6,3,8,7,1,4,28,4,16,3,3,25,4,4,27,27,1,4,1,2,2,7,1,3,5,2,28,8,2,14,1,8,6,16,25,3,3,3,14,3,
2594 3,1,1,2,1,4,6,3,8,4,1,1,1,2,3,6,10,6,2,3,18,3,2,5,5,4,3,1,5,2,5,4,23,7,6,12,6,4,17,11,9,5,1,1,10,5,12,1,1,11,26,33,7,3,6,1,17,7,1,5,12,1,11,
2595 2,4,1,8,14,17,23,1,2,1,7,8,16,11,9,6,5,2,6,4,16,2,8,14,1,11,8,9,1,1,1,9,25,4,11,19,7,2,15,2,12,8,52,7,5,19,2,16,4,36,8,1,16,8,24,26,4,6,2,9,
2596 5,4,36,3,28,12,25,15,37,27,17,12,59,38,5,32,127,1,2,9,17,14,4,1,2,1,1,8,11,50,4,14,2,19,16,4,17,5,4,5,26,12,45,2,23,45,104,30,12,8,3,10,2,2,
2597 3,3,1,4,20,7,2,9,6,15,2,20,1,3,16,4,11,15,6,134,2,5,59,1,2,2,2,1,9,17,3,26,137,10,211,59,1,2,4,1,4,1,1,1,2,6,2,3,1,1,2,3,2,3,1,3,4,4,2,3,3,
2598 1,4,3,1,7,2,2,3,1,2,1,3,3,3,2,2,3,2,1,3,14,6,1,3,2,9,6,15,27,9,34,145,1,1,2,1,1,1,1,2,1,1,1,1,2,2,2,3,1,2,1,1,1,2,3,5,8,3,5,2,4,1,3,2,2,2,12,
2599 4,1,1,1,10,4,5,1,20,4,16,1,15,9,5,12,2,9,2,5,4,2,26,19,7,1,26,4,30,12,15,42,1,6,8,172,1,1,4,2,1,1,11,2,2,4,2,1,2,1,10,8,1,2,1,4,5,1,2,5,1,8,
2600 4,1,3,4,2,1,6,2,1,3,4,1,2,1,1,1,1,12,5,7,2,4,3,1,1,1,3,3,6,1,2,2,3,3,3,2,1,2,12,14,11,6,6,4,12,2,8,1,7,10,1,35,7,4,13,15,4,3,23,21,28,52,5,
2601 26,5,6,1,7,10,2,7,53,3,2,1,1,1,2,163,532,1,10,11,1,3,3,4,8,2,8,6,2,2,23,22,4,2,2,4,2,1,3,1,3,3,5,9,8,2,1,2,8,1,10,2,12,21,20,15,105,2,3,1,1,
2602 3,2,3,1,1,2,5,1,4,15,11,19,1,1,1,1,5,4,5,1,1,2,5,3,5,12,1,2,5,1,11,1,1,15,9,1,4,5,3,26,8,2,1,3,1,1,15,19,2,12,1,2,5,2,7,2,19,2,20,6,26,7,5,
2603 2,2,7,34,21,13,70,2,128,1,1,2,1,1,2,1,1,3,2,2,2,15,1,4,1,3,4,42,10,6,1,49,85,8,1,2,1,1,4,4,2,3,6,1,5,7,4,3,211,4,1,2,1,2,5,1,2,4,2,2,6,5,6,
2604 10,3,4,48,100,6,2,16,296,5,27,387,2,2,3,7,16,8,5,38,15,39,21,9,10,3,7,59,13,27,21,47,5,21,6
2605 };
2606 static ImWchar base_ranges[] = // not zero-terminated
2607 {
2608 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2609 0x2000, 0x206F, // General Punctuation
2610 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2611 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2612 0xFF00, 0xFFEF // Half-width characters
2613 };
2614 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
2615 if (!full_ranges[0])
2616 {
2617 memcpy(full_ranges, base_ranges, sizeof(base_ranges));
2618 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
2619 }
2620 return &full_ranges[0];
2621}
2622
2623const ImWchar* ImFontAtlas::GetGlyphRangesJapanese()
2624{
2625 // 1946 common ideograms code points for Japanese
2626 // Sourced from http://theinstructionlimit.com/common-kanji-character-ranges-for-xna-spritefont-rendering
2627 // FIXME: Source a list of the revised 2136 Joyo Kanji list from 2010 and rebuild this.
2628 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2629 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2630 static const short accumulative_offsets_from_0x4E00[] =
2631 {
2632 0,1,2,4,1,1,1,1,2,1,6,2,2,1,8,5,7,11,1,2,10,10,8,2,4,20,2,11,8,2,1,2,1,6,2,1,7,5,3,7,1,1,13,7,9,1,4,6,1,2,1,10,1,1,9,2,2,4,5,6,14,1,1,9,3,18,
2633 5,4,2,2,10,7,1,1,1,3,2,4,3,23,2,10,12,2,14,2,4,13,1,6,10,3,1,7,13,6,4,13,5,2,3,17,2,2,5,7,6,4,1,7,14,16,6,13,9,15,1,1,7,16,4,7,1,19,9,2,7,15,
2634 2,6,5,13,25,4,14,13,11,25,1,1,1,2,1,2,2,3,10,11,3,3,1,1,4,4,2,1,4,9,1,4,3,5,5,2,7,12,11,15,7,16,4,5,16,2,1,1,6,3,3,1,1,2,7,6,6,7,1,4,7,6,1,1,
2635 2,1,12,3,3,9,5,8,1,11,1,2,3,18,20,4,1,3,6,1,7,3,5,5,7,2,2,12,3,1,4,2,3,2,3,11,8,7,4,17,1,9,25,1,1,4,2,2,4,1,2,7,1,1,1,3,1,2,6,16,1,2,1,1,3,12,
2636 20,2,5,20,8,7,6,2,1,1,1,1,6,2,1,2,10,1,1,6,1,3,1,2,1,4,1,12,4,1,3,1,1,1,1,1,10,4,7,5,13,1,15,1,1,30,11,9,1,15,38,14,1,32,17,20,1,9,31,2,21,9,
2637 4,49,22,2,1,13,1,11,45,35,43,55,12,19,83,1,3,2,3,13,2,1,7,3,18,3,13,8,1,8,18,5,3,7,25,24,9,24,40,3,17,24,2,1,6,2,3,16,15,6,7,3,12,1,9,7,3,3,
2638 3,15,21,5,16,4,5,12,11,11,3,6,3,2,31,3,2,1,1,23,6,6,1,4,2,6,5,2,1,1,3,3,22,2,6,2,3,17,3,2,4,5,1,9,5,1,1,6,15,12,3,17,2,14,2,8,1,23,16,4,2,23,
2639 8,15,23,20,12,25,19,47,11,21,65,46,4,3,1,5,6,1,2,5,26,2,1,1,3,11,1,1,1,2,1,2,3,1,1,10,2,3,1,1,1,3,6,3,2,2,6,6,9,2,2,2,6,2,5,10,2,4,1,2,1,2,2,
2640 3,1,1,3,1,2,9,23,9,2,1,1,1,1,5,3,2,1,10,9,6,1,10,2,31,25,3,7,5,40,1,15,6,17,7,27,180,1,3,2,2,1,1,1,6,3,10,7,1,3,6,17,8,6,2,2,1,3,5,5,8,16,14,
2641 15,1,1,4,1,2,1,1,1,3,2,7,5,6,2,5,10,1,4,2,9,1,1,11,6,1,44,1,3,7,9,5,1,3,1,1,10,7,1,10,4,2,7,21,15,7,2,5,1,8,3,4,1,3,1,6,1,4,2,1,4,10,8,1,4,5,
2642 1,5,10,2,7,1,10,1,1,3,4,11,10,29,4,7,3,5,2,3,33,5,2,19,3,1,4,2,6,31,11,1,3,3,3,1,8,10,9,12,11,12,8,3,14,8,6,11,1,4,41,3,1,2,7,13,1,5,6,2,6,12,
2643 12,22,5,9,4,8,9,9,34,6,24,1,1,20,9,9,3,4,1,7,2,2,2,6,2,28,5,3,6,1,4,6,7,4,2,1,4,2,13,6,4,4,3,1,8,8,3,2,1,5,1,2,2,3,1,11,11,7,3,6,10,8,6,16,16,
2644 22,7,12,6,21,5,4,6,6,3,6,1,3,2,1,2,8,29,1,10,1,6,13,6,6,19,31,1,13,4,4,22,17,26,33,10,4,15,12,25,6,67,10,2,3,1,6,10,2,6,2,9,1,9,4,4,1,2,16,2,
2645 5,9,2,3,8,1,8,3,9,4,8,6,4,8,11,3,2,1,1,3,26,1,7,5,1,11,1,5,3,5,2,13,6,39,5,1,5,2,11,6,10,5,1,15,5,3,6,19,21,22,2,4,1,6,1,8,1,4,8,2,4,2,2,9,2,
2646 1,1,1,4,3,6,3,12,7,1,14,2,4,10,2,13,1,17,7,3,2,1,3,2,13,7,14,12,3,1,29,2,8,9,15,14,9,14,1,3,1,6,5,9,11,3,38,43,20,7,7,8,5,15,12,19,15,81,8,7,
2647 1,5,73,13,37,28,8,8,1,15,18,20,165,28,1,6,11,8,4,14,7,15,1,3,3,6,4,1,7,14,1,1,11,30,1,5,1,4,14,1,4,2,7,52,2,6,29,3,1,9,1,21,3,5,1,26,3,11,14,
2648 11,1,17,5,1,2,1,3,2,8,1,2,9,12,1,1,2,3,8,3,24,12,7,7,5,17,3,3,3,1,23,10,4,4,6,3,1,16,17,22,3,10,21,16,16,6,4,10,2,1,1,2,8,8,6,5,3,3,3,39,25,
2649 15,1,1,16,6,7,25,15,6,6,12,1,22,13,1,4,9,5,12,2,9,1,12,28,8,3,5,10,22,60,1,2,40,4,61,63,4,1,13,12,1,4,31,12,1,14,89,5,16,6,29,14,2,5,49,18,18,
2650 5,29,33,47,1,17,1,19,12,2,9,7,39,12,3,7,12,39,3,1,46,4,12,3,8,9,5,31,15,18,3,2,2,66,19,13,17,5,3,46,124,13,57,34,2,5,4,5,8,1,1,1,4,3,1,17,5,
2651 3,5,3,1,8,5,6,3,27,3,26,7,12,7,2,17,3,7,18,78,16,4,36,1,2,1,6,2,1,39,17,7,4,13,4,4,4,1,10,4,2,4,6,3,10,1,19,1,26,2,4,33,2,73,47,7,3,8,2,4,15,
2652 18,1,29,2,41,14,1,21,16,41,7,39,25,13,44,2,2,10,1,13,7,1,7,3,5,20,4,8,2,49,1,10,6,1,6,7,10,7,11,16,3,12,20,4,10,3,1,2,11,2,28,9,2,4,7,2,15,1,
2653 27,1,28,17,4,5,10,7,3,24,10,11,6,26,3,2,7,2,2,49,16,10,16,15,4,5,27,61,30,14,38,22,2,7,5,1,3,12,23,24,17,17,3,3,2,4,1,6,2,7,5,1,1,5,1,1,9,4,
2654 1,3,6,1,8,2,8,4,14,3,5,11,4,1,3,32,1,19,4,1,13,11,5,2,1,8,6,8,1,6,5,13,3,23,11,5,3,16,3,9,10,1,24,3,198,52,4,2,2,5,14,5,4,22,5,20,4,11,6,41,
2655 1,5,2,2,11,5,2,28,35,8,22,3,18,3,10,7,5,3,4,1,5,3,8,9,3,6,2,16,22,4,5,5,3,3,18,23,2,6,23,5,27,8,1,33,2,12,43,16,5,2,3,6,1,20,4,2,9,7,1,11,2,
2656 10,3,14,31,9,3,25,18,20,2,5,5,26,14,1,11,17,12,40,19,9,6,31,83,2,7,9,19,78,12,14,21,76,12,113,79,34,4,1,1,61,18,85,10,2,2,13,31,11,50,6,33,159,
2657 179,6,6,7,4,4,2,4,2,5,8,7,20,32,22,1,3,10,6,7,28,5,10,9,2,77,19,13,2,5,1,4,4,7,4,13,3,9,31,17,3,26,2,6,6,5,4,1,7,11,3,4,2,1,6,2,20,4,1,9,2,6,
2658 3,7,1,1,1,20,2,3,1,6,2,3,6,2,4,8,1,5,13,8,4,11,23,1,10,6,2,1,3,21,2,2,4,24,31,4,10,10,2,5,192,15,4,16,7,9,51,1,2,1,1,5,1,1,2,1,3,5,3,1,3,4,1,
2659 3,1,3,3,9,8,1,2,2,2,4,4,18,12,92,2,10,4,3,14,5,25,16,42,4,14,4,2,21,5,126,30,31,2,1,5,13,3,22,5,6,6,20,12,1,14,12,87,3,19,1,8,2,9,9,3,3,23,2,
2660 3,7,6,3,1,2,3,9,1,3,1,6,3,2,1,3,11,3,1,6,10,3,2,3,1,2,1,5,1,1,11,3,6,4,1,7,2,1,2,5,5,34,4,14,18,4,19,7,5,8,2,6,79,1,5,2,14,8,2,9,2,1,36,28,16,
2661 4,1,1,1,2,12,6,42,39,16,23,7,15,15,3,2,12,7,21,64,6,9,28,8,12,3,3,41,59,24,51,55,57,294,9,9,2,6,2,15,1,2,13,38,90,9,9,9,3,11,7,1,1,1,5,6,3,2,
2662 1,2,2,3,8,1,4,4,1,5,7,1,4,3,20,4,9,1,1,1,5,5,17,1,5,2,6,2,4,1,4,5,7,3,18,11,11,32,7,5,4,7,11,127,8,4,3,3,1,10,1,1,6,21,14,1,16,1,7,1,3,6,9,65,
2663 51,4,3,13,3,10,1,1,12,9,21,110,3,19,24,1,1,10,62,4,1,29,42,78,28,20,18,82,6,3,15,6,84,58,253,15,155,264,15,21,9,14,7,58,40,39,
2664 };
2665 static ImWchar base_ranges[] = // not zero-terminated
2666 {
2667 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2668 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2669 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2670 0xFF00, 0xFFEF // Half-width characters
2671 };
2672 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 };
2673 if (!full_ranges[0])
2674 {
2675 memcpy(full_ranges, base_ranges, sizeof(base_ranges));
2676 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
2677 }
2678 return &full_ranges[0];
2679}
2680
2681const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic()
2682{
2683 static const ImWchar ranges[] =
2684 {
2685 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2686 0x0400, 0x052F, // Cyrillic + Cyrillic Supplement
2687 0x2DE0, 0x2DFF, // Cyrillic Extended-A
2688 0xA640, 0xA69F, // Cyrillic Extended-B
2689 0,
2690 };
2691 return &ranges[0];
2692}
2693
2694const ImWchar* ImFontAtlas::GetGlyphRangesThai()
2695{
2696 static const ImWchar ranges[] =
2697 {
2698 0x0020, 0x00FF, // Basic Latin
2699 0x2010, 0x205E, // Punctuations
2700 0x0E00, 0x0E7F, // Thai
2701 0,
2702 };
2703 return &ranges[0];
2704}
2705
2706const ImWchar* ImFontAtlas::GetGlyphRangesVietnamese()
2707{
2708 static const ImWchar ranges[] =
2709 {
2710 0x0020, 0x00FF, // Basic Latin
2711 0x0102, 0x0103,
2712 0x0110, 0x0111,
2713 0x0128, 0x0129,
2714 0x0168, 0x0169,
2715 0x01A0, 0x01A1,
2716 0x01AF, 0x01B0,
2717 0x1EA0, 0x1EF9,
2718 0,
2719 };
2720 return &ranges[0];
2721}
2722
2723//-----------------------------------------------------------------------------
2724// [SECTION] ImFontGlyphRangesBuilder
2725//-----------------------------------------------------------------------------
2726
2727void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end)
2728{
2729 while (text_end ? (text < text_end) : *text)
2730 {
2731 unsigned int c = 0;
2732 int c_len = ImTextCharFromUtf8(&c, text, text_end);
2733 text += c_len;
2734 if (c_len == 0)
2735 break;
2736 AddChar((ImWchar)c);
2737 }
2738}
2739
2740void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges)
2741{
2742 for (; ranges[0]; ranges += 2)
2743 for (ImWchar c = ranges[0]; c <= ranges[1]; c++)
2744 AddChar(c);
2745}
2746
2747void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
2748{
2749 const int max_codepoint = IM_UNICODE_CODEPOINT_MAX;
2750 for (int n = 0; n <= max_codepoint; n++)
2751 if (GetBit(n))
2752 {
2753 out_ranges->push_back((ImWchar)n);
2754 while (n < max_codepoint && GetBit(n + 1))
2755 n++;
2756 out_ranges->push_back((ImWchar)n);
2757 }
2758 out_ranges->push_back(0);
2759}
2760
2761//-----------------------------------------------------------------------------
2762// [SECTION] ImFont
2763//-----------------------------------------------------------------------------
2764
2765ImFont::ImFont()
2766{
2767 FontSize = 0.0f;
2768 FallbackAdvanceX = 0.0f;
2769 FallbackChar = (ImWchar)'?';
2770 EllipsisChar = (ImWchar)-1;
2771 FallbackGlyph = NULL;
2772 ContainerAtlas = NULL;
2773 ConfigData = NULL;
2774 ConfigDataCount = 0;
2775 DirtyLookupTables = false;
2776 Scale = 1.0f;
2777 Ascent = Descent = 0.0f;
2778 MetricsTotalSurface = 0;
2779 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
2780}
2781
2782ImFont::~ImFont()
2783{
2784 ClearOutputData();
2785}
2786
2787void ImFont::ClearOutputData()
2788{
2789 FontSize = 0.0f;
2790 FallbackAdvanceX = 0.0f;
2791 Glyphs.clear();
2792 IndexAdvanceX.clear();
2793 IndexLookup.clear();
2794 FallbackGlyph = NULL;
2795 ContainerAtlas = NULL;
2796 DirtyLookupTables = true;
2797 Ascent = Descent = 0.0f;
2798 MetricsTotalSurface = 0;
2799}
2800
2801void ImFont::BuildLookupTable()
2802{
2803 int max_codepoint = 0;
2804 for (int i = 0; i != Glyphs.Size; i++)
2805 max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
2806
2807 // Build lookup table
2808 IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
2809 IndexAdvanceX.clear();
2810 IndexLookup.clear();
2811 DirtyLookupTables = false;
2812 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
2813 GrowIndex(max_codepoint + 1);
2814 for (int i = 0; i < Glyphs.Size; i++)
2815 {
2816 int codepoint = (int)Glyphs[i].Codepoint;
2817 IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
2818 IndexLookup[codepoint] = (ImWchar)i;
2819
2820 // Mark 4K page as used
2821 const int page_n = codepoint / 4096;
2822 Used4kPagesMap[page_n >> 3] |= 1 << (page_n & 7);
2823 }
2824
2825 // Create a glyph to handle TAB
2826 // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
2827 if (FindGlyph((ImWchar)' '))
2828 {
2829 if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times (FIXME: Flaky)
2830 Glyphs.resize(Glyphs.Size + 1);
2831 ImFontGlyph& tab_glyph = Glyphs.back();
2832 tab_glyph = *FindGlyph((ImWchar)' ');
2833 tab_glyph.Codepoint = '\t';
2834 tab_glyph.AdvanceX *= IM_TABSIZE;
2835 IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
2836 IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size - 1);
2837 }
2838
2839 // Mark special glyphs as not visible (note that AddGlyph already mark as non-visible glyphs with zero-size polygons)
2840 SetGlyphVisible((ImWchar)' ', false);
2841 SetGlyphVisible((ImWchar)'\t', false);
2842
2843 // Setup fall-backs
2844 FallbackGlyph = FindGlyphNoFallback(FallbackChar);
2845 FallbackAdvanceX = FallbackGlyph ? FallbackGlyph->AdvanceX : 0.0f;
2846 for (int i = 0; i < max_codepoint + 1; i++)
2847 if (IndexAdvanceX[i] < 0.0f)
2848 IndexAdvanceX[i] = FallbackAdvanceX;
2849}
2850
2851// API is designed this way to avoid exposing the 4K page size
2852// e.g. use with IsGlyphRangeUnused(0, 255)
2853bool ImFont::IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last)
2854{
2855 unsigned int page_begin = (c_begin / 4096);
2856 unsigned int page_last = (c_last / 4096);
2857 for (unsigned int page_n = page_begin; page_n <= page_last; page_n++)
2858 if ((page_n >> 3) < sizeof(Used4kPagesMap))
2859 if (Used4kPagesMap[page_n >> 3] & (1 << (page_n & 7)))
2860 return false;
2861 return true;
2862}
2863
2864void ImFont::SetGlyphVisible(ImWchar c, bool visible)
2865{
2866 if (ImFontGlyph* glyph = (ImFontGlyph*)(void*)FindGlyph((ImWchar)c))
2867 glyph->Visible = visible ? 1 : 0;
2868}
2869
2870void ImFont::SetFallbackChar(ImWchar c)
2871{
2872 FallbackChar = c;
2873 BuildLookupTable();
2874}
2875
2876void ImFont::GrowIndex(int new_size)
2877{
2878 IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size);
2879 if (new_size <= IndexLookup.Size)
2880 return;
2881 IndexAdvanceX.resize(new_size, -1.0f);
2882 IndexLookup.resize(new_size, (ImWchar)-1);
2883}
2884
2885// x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
2886// Not to be mistaken with texture coordinates, which are held by u0/v0/u1/v1 in normalized format (0.0..1.0 on each texture axis).
2887// 'cfg' is not necessarily == 'this->ConfigData' because multiple source fonts+configs can be used to build one target font.
2888void ImFont::AddGlyph(const ImFontConfig* cfg, ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x)
2889{
2890 if (cfg != NULL)
2891 {
2892 // Clamp & recenter if needed
2893 const float advance_x_original = advance_x;
2894 advance_x = ImClamp(advance_x, cfg->GlyphMinAdvanceX, cfg->GlyphMaxAdvanceX);
2895 if (advance_x != advance_x_original)
2896 {
2897 float char_off_x = cfg->PixelSnapH ? ImFloor((advance_x - advance_x_original) * 0.5f) : (advance_x - advance_x_original) * 0.5f;
2898 x0 += char_off_x;
2899 x1 += char_off_x;
2900 }
2901
2902 // Snap to pixel
2903 if (cfg->PixelSnapH)
2904 advance_x = IM_ROUND(advance_x);
2905
2906 // Bake spacing
2907 advance_x += cfg->GlyphExtraSpacing.x;
2908 }
2909
2910 Glyphs.resize(Glyphs.Size + 1);
2911 ImFontGlyph& glyph = Glyphs.back();
2912 glyph.Codepoint = (unsigned int)codepoint;
2913 glyph.Visible = (x0 != x1) && (y0 != y1);
2914 glyph.X0 = x0;
2915 glyph.Y0 = y0;
2916 glyph.X1 = x1;
2917 glyph.Y1 = y1;
2918 glyph.U0 = u0;
2919 glyph.V0 = v0;
2920 glyph.U1 = u1;
2921 glyph.V1 = v1;
2922 glyph.AdvanceX = advance_x;
2923
2924 // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
2925 // We use (U1-U0)*TexWidth instead of X1-X0 to account for oversampling.
2926 float pad = ContainerAtlas->TexGlyphPadding + 0.99f;
2927 DirtyLookupTables = true;
2928 MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + pad) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + pad);
2929}
2930
2931void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
2932{
2933 IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
2934 unsigned int index_size = (unsigned int)IndexLookup.Size;
2935
2936 if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists
2937 return;
2938 if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
2939 return;
2940
2941 GrowIndex(dst + 1);
2942 IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1;
2943 IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
2944}
2945
2946const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
2947{
2948 if (c >= (size_t)IndexLookup.Size)
2949 return FallbackGlyph;
2950 const ImWchar i = IndexLookup.Data[c];
2951 if (i == (ImWchar)-1)
2952 return FallbackGlyph;
2953 return &Glyphs.Data[i];
2954}
2955
2956const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
2957{
2958 if (c >= (size_t)IndexLookup.Size)
2959 return NULL;
2960 const ImWchar i = IndexLookup.Data[c];
2961 if (i == (ImWchar)-1)
2962 return NULL;
2963 return &Glyphs.Data[i];
2964}
2965
2966const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const
2967{
2968 // Simple word-wrapping for English, not full-featured. Please submit failing cases!
2969 // FIXME: Much possible improvements (don't cut things like "word !", "word!!!" but cut within "word,,,,", more sensible support for punctuations, support for Unicode punctuations, etc.)
2970
2971 // For references, possible wrap point marked with ^
2972 // "aaa bbb, ccc,ddd. eee fff. ggg!"
2973 // ^ ^ ^ ^ ^__ ^ ^
2974
2975 // List of hardcoded separators: .,;!?'"
2976
2977 // Skip extra blanks after a line returns (that includes not counting them in width computation)
2978 // e.g. "Hello world" --> "Hello" "World"
2979
2980 // Cut words that cannot possibly fit within one line.
2981 // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
2982
2983 float line_width = 0.0f;
2984 float word_width = 0.0f;
2985 float blank_width = 0.0f;
2986 wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
2987
2988 const char* word_end = text;
2989 const char* prev_word_end = NULL;
2990 bool inside_word = true;
2991
2992 const char* s = text;
2993 while (s < text_end)
2994 {
2995 unsigned int c = (unsigned int)*s;
2996 const char* next_s;
2997 if (c < 0x80)
2998 next_s = s + 1;
2999 else
3000 next_s = s + ImTextCharFromUtf8(&c, s, text_end);
3001 if (c == 0)
3002 break;
3003
3004 if (c < 32)
3005 {
3006 if (c == '\n')
3007 {
3008 line_width = word_width = blank_width = 0.0f;
3009 inside_word = true;
3010 s = next_s;
3011 continue;
3012 }
3013 if (c == '\r')
3014 {
3015 s = next_s;
3016 continue;
3017 }
3018 }
3019
3020 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX);
3021 if (ImCharIsBlankW(c))
3022 {
3023 if (inside_word)
3024 {
3025 line_width += blank_width;
3026 blank_width = 0.0f;
3027 word_end = s;
3028 }
3029 blank_width += char_width;
3030 inside_word = false;
3031 }
3032 else
3033 {
3034 word_width += char_width;
3035 if (inside_word)
3036 {
3037 word_end = next_s;
3038 }
3039 else
3040 {
3041 prev_word_end = word_end;
3042 line_width += word_width + blank_width;
3043 word_width = blank_width = 0.0f;
3044 }
3045
3046 // Allow wrapping after punctuation.
3047 inside_word = (c != '.' && c != ',' && c != ';' && c != '!' && c != '?' && c != '\"');
3048 }
3049
3050 // We ignore blank width at the end of the line (they can be skipped)
3051 if (line_width + word_width > wrap_width)
3052 {
3053 // Words that cannot possibly fit within an entire line will be cut anywhere.
3054 if (word_width < wrap_width)
3055 s = prev_word_end ? prev_word_end : word_end;
3056 break;
3057 }
3058
3059 s = next_s;
3060 }
3061
3062 return s;
3063}
3064
3065ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const
3066{
3067 if (!text_end)
3068 text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this.
3069
3070 const float line_height = size;
3071 const float scale = size / FontSize;
3072
3073 ImVec2 text_size = ImVec2(0, 0);
3074 float line_width = 0.0f;
3075
3076 const bool word_wrap_enabled = (wrap_width > 0.0f);
3077 const char* word_wrap_eol = NULL;
3078
3079 const char* s = text_begin;
3080 while (s < text_end)
3081 {
3082 if (word_wrap_enabled)
3083 {
3084 // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
3085 if (!word_wrap_eol)
3086 {
3087 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
3088 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
3089 word_wrap_eol++; // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
3090 }
3091
3092 if (s >= word_wrap_eol)
3093 {
3094 if (text_size.x < line_width)
3095 text_size.x = line_width;
3096 text_size.y += line_height;
3097 line_width = 0.0f;
3098 word_wrap_eol = NULL;
3099
3100 // Wrapping skips upcoming blanks
3101 while (s < text_end)
3102 {
3103 const char c = *s;
3104 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
3105 }
3106 continue;
3107 }
3108 }
3109
3110 // Decode and advance source
3111 const char* prev_s = s;
3112 unsigned int c = (unsigned int)*s;
3113 if (c < 0x80)
3114 {
3115 s += 1;
3116 }
3117 else
3118 {
3119 s += ImTextCharFromUtf8(&c, s, text_end);
3120 if (c == 0) // Malformed UTF-8?
3121 break;
3122 }
3123
3124 if (c < 32)
3125 {
3126 if (c == '\n')
3127 {
3128 text_size.x = ImMax(text_size.x, line_width);
3129 text_size.y += line_height;
3130 line_width = 0.0f;
3131 continue;
3132 }
3133 if (c == '\r')
3134 continue;
3135 }
3136
3137 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale;
3138 if (line_width + char_width >= max_width)
3139 {
3140 s = prev_s;
3141 break;
3142 }
3143
3144 line_width += char_width;
3145 }
3146
3147 if (text_size.x < line_width)
3148 text_size.x = line_width;
3149
3150 if (line_width > 0 || text_size.y == 0.0f)
3151 text_size.y += line_height;
3152
3153 if (remaining)
3154 *remaining = s;
3155
3156 return text_size;
3157}
3158
3159void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const
3160{
3161 const ImFontGlyph* glyph = FindGlyph(c);
3162 if (!glyph || !glyph->Visible)
3163 return;
3164 float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
3165 pos.x = IM_FLOOR(pos.x);
3166 pos.y = IM_FLOOR(pos.y);
3167 draw_list->PrimReserve(6, 4);
3168 draw_list->PrimRectUV(ImVec2(pos.x + glyph->X0 * scale, pos.y + glyph->Y0 * scale), ImVec2(pos.x + glyph->X1 * scale, pos.y + glyph->Y1 * scale), ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col);
3169}
3170
3171void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const
3172{
3173 if (!text_end)
3174 text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
3175
3176 // Align to be pixel perfect
3177 pos.x = IM_FLOOR(pos.x);
3178 pos.y = IM_FLOOR(pos.y);
3179 float x = pos.x;
3180 float y = pos.y;
3181 if (y > clip_rect.w)
3182 return;
3183
3184 const float scale = size / FontSize;
3185 const float line_height = FontSize * scale;
3186 const bool word_wrap_enabled = (wrap_width > 0.0f);
3187 const char* word_wrap_eol = NULL;
3188
3189 // Fast-forward to first visible line
3190 const char* s = text_begin;
3191 if (y + line_height < clip_rect.y && !word_wrap_enabled)
3192 while (y + line_height < clip_rect.y && s < text_end)
3193 {
3194 s = (const char*)memchr(s, '\n', text_end - s);
3195 s = s ? s + 1 : text_end;
3196 y += line_height;
3197 }
3198
3199 // For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
3200 // Note that very large horizontal line will still be affected by the issue (e.g. a one megabyte string buffer without a newline will likely crash atm)
3201 if (text_end - s > 10000 && !word_wrap_enabled)
3202 {
3203 const char* s_end = s;
3204 float y_end = y;
3205 while (y_end < clip_rect.w && s_end < text_end)
3206 {
3207 s_end = (const char*)memchr(s_end, '\n', text_end - s_end);
3208 s_end = s_end ? s_end + 1 : text_end;
3209 y_end += line_height;
3210 }
3211 text_end = s_end;
3212 }
3213 if (s == text_end)
3214 return;
3215
3216 // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
3217 const int vtx_count_max = (int)(text_end - s) * 4;
3218 const int idx_count_max = (int)(text_end - s) * 6;
3219 const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
3220 draw_list->PrimReserve(idx_count_max, vtx_count_max);
3221
3222 ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
3223 ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
3224 unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx;
3225
3226 while (s < text_end)
3227 {
3228 if (word_wrap_enabled)
3229 {
3230 // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
3231 if (!word_wrap_eol)
3232 {
3233 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x));
3234 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
3235 word_wrap_eol++; // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
3236 }
3237
3238 if (s >= word_wrap_eol)
3239 {
3240 x = pos.x;
3241 y += line_height;
3242 word_wrap_eol = NULL;
3243
3244 // Wrapping skips upcoming blanks
3245 while (s < text_end)
3246 {
3247 const char c = *s;
3248 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
3249 }
3250 continue;
3251 }
3252 }
3253
3254 // Decode and advance source
3255 unsigned int c = (unsigned int)*s;
3256 if (c < 0x80)
3257 {
3258 s += 1;
3259 }
3260 else
3261 {
3262 s += ImTextCharFromUtf8(&c, s, text_end);
3263 if (c == 0) // Malformed UTF-8?
3264 break;
3265 }
3266
3267 if (c < 32)
3268 {
3269 if (c == '\n')
3270 {
3271 x = pos.x;
3272 y += line_height;
3273 if (y > clip_rect.w)
3274 break; // break out of main loop
3275 continue;
3276 }
3277 if (c == '\r')
3278 continue;
3279 }
3280
3281 const ImFontGlyph* glyph = FindGlyph((ImWchar)c);
3282 if (glyph == NULL)
3283 continue;
3284
3285 float char_width = glyph->AdvanceX * scale;
3286 if (glyph->Visible)
3287 {
3288 // We don't do a second finer clipping test on the Y axis as we've already skipped anything before clip_rect.y and exit once we pass clip_rect.w
3289 float x1 = x + glyph->X0 * scale;
3290 float x2 = x + glyph->X1 * scale;
3291 float y1 = y + glyph->Y0 * scale;
3292 float y2 = y + glyph->Y1 * scale;
3293 if (x1 <= clip_rect.z && x2 >= clip_rect.x)
3294 {
3295 // Render a character
3296 float u1 = glyph->U0;
3297 float v1 = glyph->V0;
3298 float u2 = glyph->U1;
3299 float v2 = glyph->V1;
3300
3301 // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
3302 if (cpu_fine_clip)
3303 {
3304 if (x1 < clip_rect.x)
3305 {
3306 u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
3307 x1 = clip_rect.x;
3308 }
3309 if (y1 < clip_rect.y)
3310 {
3311 v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
3312 y1 = clip_rect.y;
3313 }
3314 if (x2 > clip_rect.z)
3315 {
3316 u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
3317 x2 = clip_rect.z;
3318 }
3319 if (y2 > clip_rect.w)
3320 {
3321 v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
3322 y2 = clip_rect.w;
3323 }
3324 if (y1 >= y2)
3325 {
3326 x += char_width;
3327 continue;
3328 }
3329 }
3330
3331 // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
3332 {
3333 idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2);
3334 idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3);
3335 vtx_write[0].pos.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1;
3336 vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1;
3337 vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2;
3338 vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2;
3339 vtx_write += 4;
3340 vtx_current_idx += 4;
3341 idx_write += 6;
3342 }
3343 }
3344 }
3345 x += char_width;
3346 }
3347
3348 // Give back unused vertices (clipped ones, blanks) ~ this is essentially a PrimUnreserve() action.
3349 draw_list->VtxBuffer.Size = (int)(vtx_write - draw_list->VtxBuffer.Data); // Same as calling shrink()
3350 draw_list->IdxBuffer.Size = (int)(idx_write - draw_list->IdxBuffer.Data);
3351 draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
3352 draw_list->_VtxWritePtr = vtx_write;
3353 draw_list->_IdxWritePtr = idx_write;
3354 draw_list->_VtxCurrentIdx = vtx_current_idx;
3355}
3356
3357//-----------------------------------------------------------------------------
3358// [SECTION] ImGui Internal Render Helpers
3359//-----------------------------------------------------------------------------
3360// Vaguely redesigned to stop accessing ImGui global state:
3361// - RenderArrow()
3362// - RenderBullet()
3363// - RenderCheckMark()
3364// - RenderMouseCursor()
3365// - RenderArrowPointingAt()
3366// - RenderRectFilledRangeH()
3367//-----------------------------------------------------------------------------
3368// Function in need of a redesign (legacy mess)
3369// - RenderColorRectWithAlphaCheckerboard()
3370//-----------------------------------------------------------------------------
3371
3372// Render an arrow aimed to be aligned with text (p_min is a position in the same space text would be positioned). To e.g. denote expanded/collapsed state
3373void ImGui::RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale)
3374{
3375 const float h = draw_list->_Data->FontSize * 1.00f;
3376 float r = h * 0.40f * scale;
3377 ImVec2 center = pos + ImVec2(h * 0.50f, h * 0.50f * scale);
3378
3379 ImVec2 a, b, c;
3380 switch (dir)
3381 {
3382 case ImGuiDir_Up:
3383 case ImGuiDir_Down:
3384 if (dir == ImGuiDir_Up) r = -r;
3385 a = ImVec2(+0.000f, +0.750f) * r;
3386 b = ImVec2(-0.866f, -0.750f) * r;
3387 c = ImVec2(+0.866f, -0.750f) * r;
3388 break;
3389 case ImGuiDir_Left:
3390 case ImGuiDir_Right:
3391 if (dir == ImGuiDir_Left) r = -r;
3392 a = ImVec2(+0.750f, +0.000f) * r;
3393 b = ImVec2(-0.750f, +0.866f) * r;
3394 c = ImVec2(-0.750f, -0.866f) * r;
3395 break;
3396 case ImGuiDir_None:
3397 case ImGuiDir_COUNT:
3398 IM_ASSERT(0);
3399 break;
3400 }
3401 draw_list->AddTriangleFilled(center + a, center + b, center + c, col);
3402}
3403
3404void ImGui::RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col)
3405{
3406 draw_list->AddCircleFilled(pos, draw_list->_Data->FontSize * 0.20f, col, 8);
3407}
3408
3409void ImGui::RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz)
3410{
3411 float thickness = ImMax(sz / 5.0f, 1.0f);
3412 sz -= thickness * 0.5f;
3413 pos += ImVec2(thickness * 0.25f, thickness * 0.25f);
3414
3415 float third = sz / 3.0f;
3416 float bx = pos.x + third;
3417 float by = pos.y + sz - third * 0.5f;
3418 draw_list->PathLineTo(ImVec2(bx - third, by - third));
3419 draw_list->PathLineTo(ImVec2(bx, by));
3420 draw_list->PathLineTo(ImVec2(bx + third * 2.0f, by - third * 2.0f));
3421 draw_list->PathStroke(col, false, thickness);
3422}
3423
3424void ImGui::RenderMouseCursor(ImDrawList* draw_list, ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow)
3425{
3426 if (mouse_cursor == ImGuiMouseCursor_None)
3427 return;
3428 IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT);
3429
3430 ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas;
3431 ImVec2 offset, size, uv[4];
3432 if (font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
3433 {
3434 pos -= offset;
3435 const ImTextureID tex_id = font_atlas->TexID;
3436 draw_list->PushTextureID(tex_id);
3437 draw_list->AddImage(tex_id, pos + ImVec2(1, 0) * scale, pos + (ImVec2(1, 0) + size) * scale, uv[2], uv[3], col_shadow);
3438 draw_list->AddImage(tex_id, pos + ImVec2(2, 0) * scale, pos + (ImVec2(2, 0) + size) * scale, uv[2], uv[3], col_shadow);
3439 draw_list->AddImage(tex_id, pos, pos + size * scale, uv[2], uv[3], col_border);
3440 draw_list->AddImage(tex_id, pos, pos + size * scale, uv[0], uv[1], col_fill);
3441 draw_list->PopTextureID();
3442 }
3443}
3444
3445// Render an arrow. 'pos' is position of the arrow tip. half_sz.x is length from base to tip. half_sz.y is length on each side.
3446void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
3447{
3448 switch (direction)
3449 {
3450 case ImGuiDir_Left: draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), pos, col); return;
3451 case ImGuiDir_Right: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), pos, col); return;
3452 case ImGuiDir_Up: draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), pos, col); return;
3453 case ImGuiDir_Down: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), pos, col); return;
3454 case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings
3455 }
3456}
3457
3458static inline float ImAcos01(float x)
3459{
3460 if (x <= 0.0f) return IM_PI * 0.5f;
3461 if (x >= 1.0f) return 0.0f;
3462 return ImAcos(x);
3463 //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
3464}
3465
3466// FIXME: Cleanup and move code to ImDrawList.
3467void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding)
3468{
3469 if (x_end_norm == x_start_norm)
3470 return;
3471 if (x_start_norm > x_end_norm)
3472 ImSwap(x_start_norm, x_end_norm);
3473
3474 ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y);
3475 ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y);
3476 if (rounding == 0.0f)
3477 {
3478 draw_list->AddRectFilled(p0, p1, col, 0.0f);
3479 return;
3480 }
3481
3482 rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding);
3483 const float inv_rounding = 1.0f / rounding;
3484 const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding);
3485 const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding);
3486 const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return.
3487 const float x0 = ImMax(p0.x, rect.Min.x + rounding);
3488 if (arc0_b == arc0_e)
3489 {
3490 draw_list->PathLineTo(ImVec2(x0, p1.y));
3491 draw_list->PathLineTo(ImVec2(x0, p0.y));
3492 }
3493 else if (arc0_b == 0.0f && arc0_e == half_pi)
3494 {
3495 draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL
3496 draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR
3497 }
3498 else
3499 {
3500 draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL
3501 draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR
3502 }
3503 if (p1.x > rect.Min.x + rounding)
3504 {
3505 const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding);
3506 const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding);
3507 const float x1 = ImMin(p1.x, rect.Max.x - rounding);
3508 if (arc1_b == arc1_e)
3509 {
3510 draw_list->PathLineTo(ImVec2(x1, p0.y));
3511 draw_list->PathLineTo(ImVec2(x1, p1.y));
3512 }
3513 else if (arc1_b == 0.0f && arc1_e == half_pi)
3514 {
3515 draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR
3516 draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3); // BR
3517 }
3518 else
3519 {
3520 draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR
3521 draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR
3522 }
3523 }
3524 draw_list->PathFillConvex(col);
3525}
3526
3527void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, ImRect outer, ImRect inner, ImU32 col, float rounding)
3528{
3529 const bool fill_L = (inner.Min.x > outer.Min.x);
3530 const bool fill_R = (inner.Max.x < outer.Max.x);
3531 const bool fill_U = (inner.Min.y > outer.Min.y);
3532 const bool fill_D = (inner.Max.y < outer.Max.y);
3533 if (fill_L) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Min.y), ImVec2(inner.Min.x, inner.Max.y), col, rounding, (fill_U ? 0 : ImDrawCornerFlags_TopLeft) | (fill_D ? 0 : ImDrawCornerFlags_BotLeft));
3534 if (fill_R) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Min.y), ImVec2(outer.Max.x, inner.Max.y), col, rounding, (fill_U ? 0 : ImDrawCornerFlags_TopRight) | (fill_D ? 0 : ImDrawCornerFlags_BotRight));
3535 if (fill_U) draw_list->AddRectFilled(ImVec2(inner.Min.x, outer.Min.y), ImVec2(inner.Max.x, inner.Min.y), col, rounding, (fill_L ? 0 : ImDrawCornerFlags_TopLeft) | (fill_R ? 0 : ImDrawCornerFlags_TopRight));
3536 if (fill_D) draw_list->AddRectFilled(ImVec2(inner.Min.x, inner.Max.y), ImVec2(inner.Max.x, outer.Max.y), col, rounding, (fill_L ? 0 : ImDrawCornerFlags_BotLeft) | (fill_R ? 0 : ImDrawCornerFlags_BotRight));
3537 if (fill_L && fill_U) draw_list->AddRectFilled(ImVec2(outer.Min.x, outer.Min.y), ImVec2(inner.Min.x, inner.Min.y), col, rounding, ImDrawCornerFlags_TopLeft);
3538 if (fill_R && fill_U) draw_list->AddRectFilled(ImVec2(inner.Max.x, outer.Min.y), ImVec2(outer.Max.x, inner.Min.y), col, rounding, ImDrawCornerFlags_TopRight);
3539 if (fill_L && fill_D) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Max.y), ImVec2(inner.Min.x, outer.Max.y), col, rounding, ImDrawCornerFlags_BotLeft);
3540 if (fill_R && fill_D) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Max.y), ImVec2(outer.Max.x, outer.Max.y), col, rounding, ImDrawCornerFlags_BotRight);
3541}
3542
3543// Helper for ColorPicker4()
3544// NB: This is rather brittle and will show artifact when rounding this enabled if rounded corners overlap multiple cells. Caller currently responsible for avoiding that.
3545// Spent a non reasonable amount of time trying to getting this right for ColorButton with rounding+anti-aliasing+ImGuiColorEditFlags_HalfAlphaPreview flag + various grid sizes and offsets, and eventually gave up... probably more reasonable to disable rounding altogether.
3546// FIXME: uses ImGui::GetColorU32
3547void ImGui::RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 col, float grid_step, ImVec2 grid_off, float rounding, int rounding_corners_flags)
3548{
3549 if (((col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) < 0xFF)
3550 {
3551 ImU32 col_bg1 = ImGui::GetColorU32(ImAlphaBlendColors(IM_COL32(204, 204, 204, 255), col));
3552 ImU32 col_bg2 = ImGui::GetColorU32(ImAlphaBlendColors(IM_COL32(128, 128, 128, 255), col));
3553 draw_list->AddRectFilled(p_min, p_max, col_bg1, rounding, rounding_corners_flags);
3554
3555 int yi = 0;
3556 for (float y = p_min.y + grid_off.y; y < p_max.y; y += grid_step, yi++)
3557 {
3558 float y1 = ImClamp(y, p_min.y, p_max.y), y2 = ImMin(y + grid_step, p_max.y);
3559 if (y2 <= y1)
3560 continue;
3561 for (float x = p_min.x + grid_off.x + (yi & 1) * grid_step; x < p_max.x; x += grid_step * 2.0f)
3562 {
3563 float x1 = ImClamp(x, p_min.x, p_max.x), x2 = ImMin(x + grid_step, p_max.x);
3564 if (x2 <= x1)
3565 continue;
3566 int rounding_corners_flags_cell = 0;
3567 if (y1 <= p_min.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImDrawCornerFlags_TopLeft; if (x2 >= p_max.x) rounding_corners_flags_cell |= ImDrawCornerFlags_TopRight; }
3568 if (y2 >= p_max.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImDrawCornerFlags_BotLeft; if (x2 >= p_max.x) rounding_corners_flags_cell |= ImDrawCornerFlags_BotRight; }
3569 rounding_corners_flags_cell &= rounding_corners_flags;
3570 draw_list->AddRectFilled(ImVec2(x1, y1), ImVec2(x2, y2), col_bg2, rounding_corners_flags_cell ? rounding : 0.0f, rounding_corners_flags_cell);
3571 }
3572 }
3573 }
3574 else
3575 {
3576 draw_list->AddRectFilled(p_min, p_max, col, rounding, rounding_corners_flags);
3577 }
3578}
3579
3580//-----------------------------------------------------------------------------
3581// [SECTION] Decompression code
3582//-----------------------------------------------------------------------------
3583// Compressed with stb_compress() then converted to a C array and encoded as base85.
3584// Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
3585// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
3586// Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
3587//-----------------------------------------------------------------------------
3588
3589static unsigned int stb_decompress_length(const unsigned char *input)
3590{
3591 return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
3592}
3593
3594static unsigned char *stb__barrier_out_e, *stb__barrier_out_b;
3595static const unsigned char *stb__barrier_in_b;
3596static unsigned char *stb__dout;
3597static void stb__match(const unsigned char *data, unsigned int length)
3598{
3599 // INVERSE of memmove... write each byte before copying the next...
3600 IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
3601 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
3602 if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; }
3603 while (length--) *stb__dout++ = *data++;
3604}
3605
3606static void stb__lit(const unsigned char *data, unsigned int length)
3607{
3608 IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
3609 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
3610 if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; }
3611 memcpy(stb__dout, data, length);
3612 stb__dout += length;
3613}
3614
3615#define stb__in2(x) ((i[x] << 8) + i[(x)+1])
3616#define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1))
3617#define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1))
3618
3619static const unsigned char *stb_decompress_token(const unsigned char *i)
3620{
3621 if (*i >= 0x20) { // use fewer if's for cases that expand small
3622 if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2;
3623 else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3;
3624 else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
3625 } else { // more ifs for cases that expand large, since overhead is amortized
3626 if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4;
3627 else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
3628 else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
3629 else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
3630 else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5;
3631 else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
3632 }
3633 return i;
3634}
3635
3636static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
3637{
3638 const unsigned long ADLER_MOD = 65521;
3639 unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
3640 unsigned long blocklen = buflen % 5552;
3641
3642 unsigned long i;
3643 while (buflen) {
3644 for (i=0; i + 7 < blocklen; i += 8) {
3645 s1 += buffer[0], s2 += s1;
3646 s1 += buffer[1], s2 += s1;
3647 s1 += buffer[2], s2 += s1;
3648 s1 += buffer[3], s2 += s1;
3649 s1 += buffer[4], s2 += s1;
3650 s1 += buffer[5], s2 += s1;
3651 s1 += buffer[6], s2 += s1;
3652 s1 += buffer[7], s2 += s1;
3653
3654 buffer += 8;
3655 }
3656
3657 for (; i < blocklen; ++i)
3658 s1 += *buffer++, s2 += s1;
3659
3660 s1 %= ADLER_MOD, s2 %= ADLER_MOD;
3661 buflen -= blocklen;
3662 blocklen = 5552;
3663 }
3664 return (unsigned int)(s2 << 16) + (unsigned int)s1;
3665}
3666
3667static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/)
3668{
3669 if (stb__in4(0) != 0x57bC0000) return 0;
3670 if (stb__in4(4) != 0) return 0; // error! stream is > 4GB
3671 const unsigned int olen = stb_decompress_length(i);
3672 stb__barrier_in_b = i;
3673 stb__barrier_out_e = output + olen;
3674 stb__barrier_out_b = output;
3675 i += 16;
3676
3677 stb__dout = output;
3678 for (;;) {
3679 const unsigned char *old_i = i;
3680 i = stb_decompress_token(i);
3681 if (i == old_i) {
3682 if (*i == 0x05 && i[1] == 0xfa) {
3683 IM_ASSERT(stb__dout == output + olen);
3684 if (stb__dout != output + olen) return 0;
3685 if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2))
3686 return 0;
3687 return olen;
3688 } else {
3689 IM_ASSERT(0); /* NOTREACHED */
3690 return 0;
3691 }
3692 }
3693 IM_ASSERT(stb__dout <= output + olen);
3694 if (stb__dout > output + olen)
3695 return 0;
3696 }
3697}
3698
3699//-----------------------------------------------------------------------------
3700// [SECTION] Default font data (ProggyClean.ttf)
3701//-----------------------------------------------------------------------------
3702// ProggyClean.ttf
3703// Copyright (c) 2004, 2005 Tristan Grimmer
3704// MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip)
3705// Download and more information at http://upperbounds.net
3706//-----------------------------------------------------------------------------
3707// File: 'ProggyClean.ttf' (41208 bytes)
3708// Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding).
3709// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
3710//-----------------------------------------------------------------------------
3711static const char proggy_clean_ttf_compressed_data_base85[11980 + 1] =
3712 "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
3713 "2*>]b(MC;$jPfY.;h^`IWM9<Lh2TlS+f-s$o6Q<BWH`YiU.xfLq$N;$0iR/GX:U(jcW2p/W*q?-qmnUCI;jHSAiFWM.R*kU@C=GH?a9wp8f$e.-4^Qg1)Q-GL(lf(r/7GrRgwV%MS=C#"
3714 "`8ND>Qo#t'X#(v#Y9w0#1D$CIf;W'#pWUPXOuxXuU(H9M(1<q-UE31#^-V'8IRUo7Qf./L>=Ke$$'5F%)]0^#0X@U.a<r:QLtFsLcL6##lOj)#.Y5<-R&KgLwqJfLgN&;Q?gI^#DY2uL"
3715 "i@^rMl9t=cWq6##weg>$FBjVQTSDgEKnIS7EM9>ZY9w0#L;>>#Mx&4Mvt//L[MkA#W@lK.N'[0#7RL_&#w+F%HtG9M#XL`N&.,GM4Pg;-<nLENhvx>-VsM.M0rJfLH2eTM`*oJMHRC`N"
3716 "kfimM2J,W-jXS:)r0wK#@Fge$U>`w'N7G#$#fB#$E^$#:9:hk+eOe--6x)F7*E%?76%^GMHePW-Z5l'&GiF#$956:rS?dA#fiK:)Yr+`&#0j@'DbG&#^$PG.Ll+DNa<XCMKEV*N)LN/N"
3717 "*b=%Q6pia-Xg8I$<MR&,VdJe$<(7G;Ckl'&hF;;$<_=X(b.RS%%)###MPBuuE1V:v&cX&#2m#(&cV]`k9OhLMbn%s$G2,B$BfD3X*sp5#l,$R#]x_X1xKX%b5U*[r5iMfUo9U`N99hG)"
3718 "tm+/Us9pG)XPu`<0s-)WTt(gCRxIg(%6sfh=ktMKn3j)<6<b5Sk_/0(^]AaN#(p/L>&VZ>1i%h1S9u5o@YaaW$e+b<TWFn/Z:Oh(Cx2$lNEoN^e)#CFY@@I;BOQ*sRwZtZxRcU7uW6CX"
3719 "ow0i(?$Q[cjOd[P4d)]>ROPOpxTO7Stwi1::iB1q)C_=dV26J;2,]7op$]uQr@_V7$q^%lQwtuHY]=DX,n3L#0PHDO4f9>dC@O>HBuKPpP*E,N+b3L#lpR/MrTEH.IAQk.a>D[.e;mc."
3720 "x]Ip.PH^'/aqUO/$1WxLoW0[iLA<QT;5HKD+@qQ'NQ(3_PLhE48R.qAPSwQ0/WK?Z,[x?-J;jQTWA0X@KJ(_Y8N-:/M74:/-ZpKrUss?d#dZq]DAbkU*JqkL+nwX@@47`5>w=4h(9.`G"
3721 "CRUxHPeR`5Mjol(dUWxZa(>STrPkrJiWx`5U7F#.g*jrohGg`cg:lSTvEY/EV_7H4Q9[Z%cnv;JQYZ5q.l7Zeas:HOIZOB?G<Nald$qs]@]L<J7bR*>gv:[7MI2k).'2($5FNP&EQ(,)"
3722 "U]W]+fh18.vsai00);D3@4ku5P?DP8aJt+;qUM]=+b'8@;mViBKx0DE[-auGl8:PJ&Dj+M6OC]O^((##]`0i)drT;-7X`=-H3[igUnPG-NZlo.#k@h#=Ork$m>a>$-?Tm$UV(?#P6YY#"
3723 "'/###xe7q.73rI3*pP/$1>s9)W,JrM7SN]'/4C#v$U`0#V.[0>xQsH$fEmPMgY2u7Kh(G%siIfLSoS+MK2eTM$=5,M8p`A.;_R%#u[K#$x4AG8.kK/HSB==-'Ie/QTtG?-.*^N-4B/ZM"
3724 "_3YlQC7(p7q)&](`6_c)$/*JL(L-^(]$wIM`dPtOdGA,U3:w2M-0<q-]L_?^)1vw'.,MRsqVr.L;aN&#/EgJ)PBc[-f>+WomX2u7lqM2iEumMTcsF?-aT=Z-97UEnXglEn1K-bnEO`gu"
3725 "Ft(c%=;Am_Qs@jLooI&NX;]0#j4#F14;gl8-GQpgwhrq8'=l_f-b49'UOqkLu7-##oDY2L(te+Mch&gLYtJ,MEtJfLh'x'M=$CS-ZZ%P]8bZ>#S?YY#%Q&q'3^Fw&?D)UDNrocM3A76/"
3726 "/oL?#h7gl85[qW/NDOk%16ij;+:1a'iNIdb-ou8.P*w,v5#EI$TWS>Pot-R*H'-SEpA:g)f+O$%%`kA#G=8RMmG1&O`>to8bC]T&$,n.LoO>29sp3dt-52U%VM#q7'DHpg+#Z9%H[K<L"
3727 "%a2E-grWVM3@2=-k22tL]4$##6We'8UJCKE[d_=%wI;'6X-GsLX4j^SgJ$##R*w,vP3wK#iiW&#*h^D&R?jp7+/u&#(AP##XU8c$fSYW-J95_-Dp[g9wcO&#M-h1OcJlc-*vpw0xUX&#"
3728 "OQFKNX@QI'IoPp7nb,QU//MQ&ZDkKP)X<WSVL(68uVl&#c'[0#(s1X&xm$Y%B7*K:eDA323j998GXbA#pwMs-jgD$9QISB-A_(aN4xoFM^@C58D0+Q+q3n0#3U1InDjF682-SjMXJK)("
3729 "h$hxua_K]ul92%'BOU&#BRRh-slg8KDlr:%L71Ka:.A;%YULjDPmL<LYs8i#XwJOYaKPKc1h:'9Ke,g)b),78=I39B;xiY$bgGw-&.Zi9InXDuYa%G*f2Bq7mn9^#p1vv%#(Wi-;/Z5h"
3730 "o;#2:;%d&#x9v68C5g?ntX0X)pT`;%pB3q7mgGN)3%(P8nTd5L7GeA-GL@+%J3u2:(Yf>et`e;)f#Km8&+DC$I46>#Kr]]u-[=99tts1.qb#q72g1WJO81q+eN'03'eM>&1XxY-caEnO"
3731 "j%2n8)),?ILR5^.Ibn<-X-Mq7[a82Lq:F&#ce+S9wsCK*x`569E8ew'He]h:sI[2LM$[guka3ZRd6:t%IG:;$%YiJ:Nq=?eAw;/:nnDq0(CYcMpG)qLN4$##&J<j$UpK<Q4a1]MupW^-"
3732 "sj_$%[HK%'F####QRZJ::Y3EGl4'@%FkiAOg#p[##O`gukTfBHagL<LHw%q&OV0##F=6/:chIm0@eCP8X]:kFI%hl8hgO@RcBhS-@Qb$%+m=hPDLg*%K8ln(wcf3/'DW-$.lR?n[nCH-"
3733 "eXOONTJlh:.RYF%3'p6sq:UIMA945&^HFS87@$EP2iG<-lCO$%c`uKGD3rC$x0BL8aFn--`ke%#HMP'vh1/R&O_J9'um,.<tx[@%wsJk&bUT2`0uMv7gg#qp/ij.L56'hl;.s5CUrxjO"
3734 "M7-##.l+Au'A&O:-T72L]P`&=;ctp'XScX*rU.>-XTt,%OVU4)S1+R-#dg0/Nn?Ku1^0f$B*P:Rowwm-`0PKjYDDM'3]d39VZHEl4,.j']Pk-M.h^&:0FACm$maq-&sgw0t7/6(^xtk%"
3735 "LuH88Fj-ekm>GA#_>568x6(OFRl-IZp`&b,_P'$M<Jnq79VsJW/mWS*PUiq76;]/NM_>hLbxfc$mj`,O;&%W2m`Zh:/)Uetw:aJ%]K9h:TcF]u_-Sj9,VK3M.*'&0D[Ca]J9gp8,kAW]"
3736 "%(?A%R$f<->Zts'^kn=-^@c4%-pY6qI%J%1IGxfLU9CP8cbPlXv);C=b),<2mOvP8up,UVf3839acAWAW-W?#ao/^#%KYo8fRULNd2.>%m]UK:n%r$'sw]J;5pAoO_#2mO3n,'=H5(et"
3737 "Hg*`+RLgv>=4U8guD$I%D:W>-r5V*%j*W:Kvej.Lp$<M-SGZ':+Q_k+uvOSLiEo(<aD/K<CCc`'Lx>'?;++O'>()jLR-^u68PHm8ZFWe+ej8h:9r6L*0//c&iH&R8pRbA#Kjm%upV1g:"
3738 "a_#Ur7FuA#(tRh#.Y5K+@?3<-8m0$PEn;J:rh6?I6uG<-`wMU'ircp0LaE_OtlMb&1#6T.#FDKu#1Lw%u%+GM+X'e?YLfjM[VO0MbuFp7;>Q&#WIo)0@F%q7c#4XAXN-U&VB<HFF*qL("
3739 "$/V,;(kXZejWO`<[5?\?ewY(*9=%wDc;,u<'9t3W-(H1th3+G]ucQ]kLs7df($/*JL]@*t7Bu_G3_7mp7<iaQjO@.kLg;x3B0lqp7Hf,^Ze7-##@/c58Mo(3;knp0%)A7?-W+eI'o8)b<"
3740 "nKnw'Ho8C=Y>pqB>0ie&jhZ[?iLR@@_AvA-iQC(=ksRZRVp7`.=+NpBC%rh&3]R:8XDmE5^V8O(x<<aG/1N$#FX$0V5Y6x'aErI3I$7x%E`v<-BY,)%-?Psf*l?%C3.mM(=/M0:JxG'?"
3741 "7WhH%o'a<-80g0NBxoO(GH<dM]n.+%q@jH?f.UsJ2Ggs&4<-e47&Kl+f//9@`b+?.TeN_&B8Ss?v;^Trk;f#YvJkl&w$]>-+k?'(<S:68tq*WoDfZu';mM?8X[ma8W%*`-=;D.(nc7/;"
3742 ")g:T1=^J$&BRV(-lTmNB6xqB[@0*o.erM*<SWF]u2=st-*(6v>^](H.aREZSi,#1:[IXaZFOm<-ui#qUq2$##Ri;u75OK#(RtaW-K-F`S+cF]uN`-KMQ%rP/Xri.LRcB##=YL3BgM/3M"
3743 "D?@f&1'BW-)Ju<L25gl8uhVm1hL$##*8###'A3/LkKW+(^rWX?5W_8g)a(m&K8P>#bmmWCMkk&#TR`C,5d>g)F;t,4:@_l8G/5h4vUd%&%950:VXD'QdWoY-F$BtUwmfe$YqL'8(PWX("
3744 "P?^@Po3$##`MSs?DWBZ/S>+4%>fX,VWv/w'KD`LP5IbH;rTV>n3cEK8U#bX]l-/V+^lj3;vlMb&[5YQ8#pekX9JP3XUC72L,,?+Ni&co7ApnO*5NK,((W-i:$,kp'UDAO(G0Sq7MVjJs"
3745 "bIu)'Z,*[>br5fX^:FPAWr-m2KgL<LUN098kTF&#lvo58=/vjDo;.;)Ka*hLR#/k=rKbxuV`>Q_nN6'8uTG&#1T5g)uLv:873UpTLgH+#FgpH'_o1780Ph8KmxQJ8#H72L4@768@Tm&Q"
3746 "h4CB/5OvmA&,Q&QbUoi$a_%3M01H)4x7I^&KQVgtFnV+;[Pc>[m4k//,]1?#`VY[Jr*3&&slRfLiVZJ:]?=K3Sw=[$=uRB?3xk48@aeg<Z'<$#4H)6,>e0jT6'N#(q%.O=?2S]u*(m<-"
3747 "V8J'(1)G][68hW$5'q[GC&5j`TE?m'esFGNRM)j,ffZ?-qx8;->g4t*:CIP/[Qap7/9'#(1sao7w-.qNUdkJ)tCF&#B^;xGvn2r9FEPFFFcL@.iFNkTve$m%#QvQS8U@)2Z+3K:AKM5i"
3748 "sZ88+dKQ)W6>J%CL<KE>`.d*(B`-n8D9oK<Up]c$X$(,)M8Zt7/[rdkqTgl-0cuGMv'?>-XV1q['-5k'cAZ69e;D_?$ZPP&s^+7])$*$#@QYi9,5P&#9r+$%CE=68>K8r0=dSC%%(@p7"
3749 ".m7jilQ02'0-VWAg<a/''3u.=4L$Y)6k/K:_[3=&jvL<L0C/2'v:^;-DIBW,B4E68:kZ;%?8(Q8BH=kO65BW?xSG&#@uU,DS*,?.+(o(#1vCS8#CHF>TlGW'b)Tq7VT9q^*^$$.:&N@@"
3750 "$&)WHtPm*5_rO0&e%K&#-30j(E4#'Zb.o/(Tpm$>K'f@[PvFl,hfINTNU6u'0pao7%XUp9]5.>%h`8_=VYbxuel.NTSsJfLacFu3B'lQSu/m6-Oqem8T+oE--$0a/k]uj9EwsG>%veR*"
3751 "hv^BFpQj:K'#SJ,sB-'#](j.Lg92rTw-*n%@/;39rrJF,l#qV%OrtBeC6/,;qB3ebNW[?,Hqj2L.1NP&GjUR=1D8QaS3Up&@*9wP?+lo7b?@%'k4`p0Z$22%K3+iCZj?XJN4Nm&+YF]u"
3752 "@-W$U%VEQ/,,>>#)D<h#`)h0:<Q6909ua+&VU%n2:cG3FJ-%@Bj-DgLr`Hw&HAKjKjseK</xKT*)B,N9X3]krc12t'pgTV(Lv-tL[xg_%=M_q7a^x?7Ubd>#%8cY#YZ?=,`Wdxu/ae&#"
3753 "w6)R89tI#6@s'(6Bf7a&?S=^ZI_kS&ai`&=tE72L_D,;^R)7[$s<Eh#c&)q.MXI%#v9ROa5FZO%sF7q7Nwb&#ptUJ:aqJe$Sl68%.D###EC><?-aF&#RNQv>o8lKN%5/$(vdfq7+ebA#"
3754 "u1p]ovUKW&Y%q]'>$1@-[xfn$7ZTp7mM,G,Ko7a&Gu%G[RMxJs[0MM%wci.LFDK)(<c`Q8N)jEIF*+?P2a8g%)$q]o2aH8C&<SibC/q,(e:v;-b#6[$NtDZ84Je2KNvB#$P5?tQ3nt(0"
3755 "d=j.LQf./Ll33+(;q3L-w=8dX$#WF&uIJ@-bfI>%:_i2B5CsR8&9Z&#=mPEnm0f`<&c)QL5uJ#%u%lJj+D-r;BoF&#4DoS97h5g)E#o:&S4weDF,9^Hoe`h*L+_a*NrLW-1pG_&2UdB8"
3756 "6e%B/:=>)N4xeW.*wft-;$'58-ESqr<b?UI(_%@[P46>#U`'6AQ]m&6/`Z>#S?YY#Vc;r7U2&326d=w&H####?TZ`*4?&.MK?LP8Vxg>$[QXc%QJv92.(Db*B)gb*BM9dM*hJMAo*c&#"
3757 "b0v=Pjer]$gG&JXDf->'StvU7505l9$AFvgYRI^&<^b68?j#q9QX4SM'RO#&sL1IM.rJfLUAj221]d##DW=m83u5;'bYx,*Sl0hL(W;;$doB&O/TQ:(Z^xBdLjL<Lni;''X.`$#8+1GD"
3758 ":k$YUWsbn8ogh6rxZ2Z9]%nd+>V#*8U_72Lh+2Q8Cj0i:6hp&$C/:p(HK>T8Y[gHQ4`4)'$Ab(Nof%V'8hL&#<NEdtg(n'=S1A(Q1/I&4([%dM`,Iu'1:_hL>SfD07&6D<fp8dHM7/g+"
3759 "tlPN9J*rKaPct&?'uBCem^jn%9_K)<,C5K3s=5g&GmJb*[SYq7K;TRLGCsM-$$;S%:Y@r7AK0pprpL<Lrh,q7e/%KWK:50I^+m'vi`3?%Zp+<-d+$L-Sv:@.o19n$s0&39;kn;S%BSq*"
3760 "$3WoJSCLweV[aZ'MQIjO<7;X-X;&+dMLvu#^UsGEC9WEc[X(wI7#2.(F0jV*eZf<-Qv3J-c+J5AlrB#$p(H68LvEA'q3n0#m,[`*8Ft)FcYgEud]CWfm68,(aLA$@EFTgLXoBq/UPlp7"
3761 ":d[/;r_ix=:TF`S5H-b<LI&HY(K=h#)]Lk$K14lVfm:x$H<3^Ql<M`$OhapBnkup'D#L$Pb_`N*g]2e;X/Dtg,bsj&K#2[-:iYr'_wgH)NUIR8a1n#S?Yej'h8^58UbZd+^FKD*T@;6A"
3762 "7aQC[K8d-(v6GI$x:T<&'Gp5Uf>@M.*J:;$-rv29'M]8qMv-tLp,'886iaC=Hb*YJoKJ,(j%K=H`K.v9HggqBIiZu'QvBT.#=)0ukruV&.)3=(^1`o*Pj4<-<aN((^7('#Z0wK#5GX@7"
3763 "u][`*S^43933A4rl][`*O4CgLEl]v$1Q3AeF37dbXk,.)vj#x'd`;qgbQR%FW,2(?LO=s%Sc68%NP'##Aotl8x=BE#j1UD([3$M(]UI2LX3RpKN@;/#f'f/&_mt&F)XdF<9t4)Qa.*kT"
3764 "LwQ'(TTB9.xH'>#MJ+gLq9-##@HuZPN0]u:h7.T..G:;$/Usj(T7`Q8tT72LnYl<-qx8;-HV7Q-&Xdx%1a,hC=0u+HlsV>nuIQL-5<N?)NBS)QN*_I,?&)2'IM%L3I)X((e/dl2&8'<M"
3765 ":^#M*Q+[T.Xri.LYS3v%fF`68h;b-X[/En'CR.q7E)p'/kle2HM,u;^%OKC-N+Ll%F9CF<Nf'^#t2L,;27W:0O@6##U6W7:$rJfLWHj$#)woqBefIZ.PK<b*t7ed;p*_m;4ExK#h@&]>"
3766 "_>@kXQtMacfD.m-VAb8;IReM3$wf0''hra*so568'Ip&vRs849'MRYSp%:t:h5qSgwpEr$B>Q,;s(C#$)`svQuF$##-D,##,g68@2[T;.XSdN9Qe)rpt._K-#5wF)sP'##p#C0c%-Gb%"
3767 "hd+<-j'Ai*x&&HMkT]C'OSl##5RG[JXaHN;d'uA#x._U;.`PU@(Z3dt4r152@:v,'R.Sj'w#0<-;kPI)FfJ&#AYJ&#//)>-k=m=*XnK$>=)72L]0I%>.G690a:$##<,);?;72#?x9+d;"
3768 "^V'9;jY@;)br#q^YQpx:X#Te$Z^'=-=bGhLf:D6&bNwZ9-ZD#n^9HhLMr5G;']d&6'wYmTFmL<LD)F^%[tC'8;+9E#C$g%#5Y>q9wI>P(9mI[>kC-ekLC/R&CH+s'B;K-M6$EB%is00:"
3769 "+A4[7xks.LrNk0&E)wILYF@2L'0Nb$+pv<(2.768/FrY&h$^3i&@+G%JT'<-,v`3;_)I9M^AE]CN?Cl2AZg+%4iTpT3<n-&%H%b<FDj2M<hH=&Eh<2Len$b*aTX=-8QxN)k11IM1c^j%"
3770 "9s<L<NFSo)B?+<-(GxsF,^-Eh@$4dXhN$+#rxK8'je'D7k`e;)2pYwPA'_p9&@^18ml1^[@g4t*[JOa*[=Qp7(qJ_oOL^('7fB&Hq-:sf,sNj8xq^>$U4O]GKx'm9)b@p7YsvK3w^YR-"
3771 "CdQ*:Ir<($u&)#(&?L9Rg3H)4fiEp^iI9O8KnTj,]H?D*r7'M;PwZ9K0E^k&-cpI;.p/6_vwoFMV<->#%Xi.LxVnrU(4&8/P+:hLSKj$#U%]49t'I:rgMi'FL@a:0Y-uA[39',(vbma*"
3772 "hU%<-SRF`Tt:542R_VV$p@[p8DV[A,?1839FWdF<TddF<9Ah-6&9tWoDlh]&1SpGMq>Ti1O*H&#(AL8[_P%.M>v^-))qOT*F5Cq0`Ye%+$B6i:7@0IX<N+T+0MlMBPQ*Vj>SsD<U4JHY"
3773 "8kD2)2fU/M#$e.)T4,_=8hLim[&);?UkK'-x?'(:siIfL<$pFM`i<?%W(mGDHM%>iWP,##P`%/L<eXi:@Z9C.7o=@(pXdAO/NLQ8lPl+HPOQa8wD8=^GlPa8TKI1CjhsCTSLJM'/Wl>-"
3774 "S(qw%sf/@%#B6;/U7K]uZbi^Oc^2n<bhPmUkMw>%t<)'mEVE''n`WnJra$^TKvX5B>;_aSEK',(hwa0:i4G?.Bci.(X[?b*($,=-n<.Q%`(X=?+@Am*Js0&=3bh8K]mL<LoNs'6,'85`"
3775 "0?t/'_U59@]ddF<#LdF<eWdF<OuN/45rY<-L@&#+fm>69=Lb,OcZV/);TTm8VI;?%OtJ<(b4mq7M6:u?KRdF<gR@2L=FNU-<b[(9c/ML3m;Z[$oF3g)GAWqpARc=<ROu7cL5l;-[A]%/"
3776 "+fsd;l#SafT/f*W]0=O'$(Tb<[)*@e775R-:Yob%g*>l*:xP?Yb.5)%w_I?7uk5JC+FS(m#i'k.'a0i)9<7b'fs'59hq$*5Uhv##pi^8+hIEBF`nvo`;'l0.^S1<-wUK2/Coh58KKhLj"
3777 "M=SO*rfO`+qC`W-On.=AJ56>>i2@2LH6A:&5q`?9I3@@'04&p2/LVa*T-4<-i3;M9UvZd+N7>b*eIwg:CC)c<>nO&#<IGe;__.thjZl<%w(Wk2xmp4Q@I#I9,DF]u7-P=.-_:YJ]aS@V"
3778 "?6*C()dOp7:WL,b&3Rg/.cmM9&r^>$(>.Z-I&J(Q0Hd5Q%7Co-b`-c<N(6r@ip+AurK<m86QIth*#v;-OBqi+L7wDE-Ir8K['m+DDSLwK&/.?-V%U_%3:qKNu$_b*B-kp7NaD'QdWQPK"
3779 "Yq[@>P)hI;*_F]u`Rb[.j8_Q/<&>uu+VsH$sM9TA%?)(vmJ80),P7E>)tjD%2L=-t#fK[%`v=Q8<FfNkgg^oIbah*#8/Qt$F&:K*-(N/'+1vMB,u()-a.VUU*#[e%gAAO(S>WlA2);Sa"
3780 ">gXm8YB`1d@K#n]76-a$U,mF<fX]idqd)<3,]J7JmW4`6]uks=4-72L(jEk+:bJ0M^q-8Dm_Z?0olP1C9Sa&H[d&c$ooQUj]Exd*3ZM@-WGW2%s',B-_M%>%Ul:#/'xoFM9QX-$.QN'>"
3781 "[%$Z$uF6pA6Ki2O5:8w*vP1<-1`[G,)-m#>0`P&#eb#.3i)rtB61(o'$?X3B</R90;eZ]%Ncq;-Tl]#F>2Qft^ae_5tKL9MUe9b*sLEQ95C&`=G?@Mj=wh*'3E>=-<)Gt*Iw)'QG:`@I"
3782 "wOf7&]1i'S01B+Ev/Nac#9S;=;YQpg_6U`*kVY39xK,[/6Aj7:'1Bm-_1EYfa1+o&o4hp7KN_Q(OlIo@S%;jVdn0'1<Vc52=u`3^o-n1'g4v58Hj&6_t7$##?M)c<$bgQ_'SY((-xkA#"
3783 "Y(,p'H9rIVY-b,'%bCPF7.J<Up^,(dU1VY*5#WkTU>h19w,WQhLI)3S#f$2(eb,jr*b;3Vw]*7NH%$c4Vs,eD9>XW8?N]o+(*pgC%/72LV-u<Hp,3@e^9UB1J+ak9-TN/mhKPg+AJYd$"
3784 "MlvAF_jCK*.O-^(63adMT->W%iewS8W6m2rtCpo'RS1R84=@paTKt)>=%&1[)*vp'u+x,VrwN;&]kuO9JDbg=pO$J*.jVe;u'm0dr9l,<*wMK*Oe=g8lV_KEBFkO'oU]^=[-792#ok,)"
3785 "i]lR8qQ2oA8wcRCZ^7w/Njh;?.stX?Q1>S1q4Bn$)K1<-rGdO'$Wr.Lc.CG)$/*JL4tNR/,SVO3,aUw'DJN:)Ss;wGn9A32ijw%FL+Z0Fn.U9;reSq)bmI32U==5ALuG&#Vf1398/pVo"
3786 "1*c-(aY168o<`JsSbk-,1N;$>0:OUas(3:8Z972LSfF8eb=c-;>SPw7.6hn3m`9^Xkn(r.qS[0;T%&Qc=+STRxX'q1BNk3&*eu2;&8q$&x>Q#Q7^Tf+6<(d%ZVmj2bDi%.3L2n+4W'$P"
3787 "iDDG)g,r%+?,$@?uou5tSe2aN_AQU*<h`e-GI7)?OK2A.d7_c)?wQ5AS@DL3r#7fSkgl6-++D:'A,uq7SvlB$pcpH'q3n0#_%dY#xCpr-l<F0NR@-##FEV6NTF6##$l84N1w?AO>'IAO"
3788 "URQ##V^Fv-XFbGM7Fl(N<3DhLGF%q.1rC$#:T__&Pi68%0xi_&[qFJ(77j_&JWoF.V735&T,[R*:xFR*K5>>#`bW-?4Ne_&6Ne_&6Ne_&n`kr-#GJcM6X;uM6X;uM(.a..^2TkL%oR(#"
3789 ";u.T%fAr%4tJ8&><1=GHZ_+m9/#H1F^R#SC#*N=BA9(D?v[UiFY>>^8p,KKF.W]L29uLkLlu/+4T<XoIB&hx=T1PcDaB&;HH+-AFr?(m9HZV)FKS8JCw;SD=6[^/DZUL`EUDf]GGlG&>"
3790 "w$)F./^n3+rlo+DB;5sIYGNk+i1t-69Jg--0pao7Sm#K)pdHW&;LuDNH@H>#/X-TI(;P>#,Gc>#0Su>#4`1?#8lC?#<xU?#@.i?#D:%@#HF7@#LRI@#P_[@#Tkn@#Xw*A#]-=A#a9OA#"
3791 "d<F&#*;G##.GY##2Sl##6`($#:l:$#>xL$#B.`$#F:r$#JF.%#NR@%#R_R%#Vke%#Zww%#_-4&#3^Rh%Sflr-k'MS.o?.5/sWel/wpEM0%3'/1)K^f1-d>G21&v(35>V`39V7A4=onx4"
3792 "A1OY5EI0;6Ibgr6M$HS7Q<)58C5w,;WoA*#[%T*#`1g*#d=#+#hI5+#lUG+#pbY+#tnl+#x$),#&1;,#*=M,#.I`,#2Ur,#6b.-#;w[H#iQtA#m^0B#qjBB#uvTB##-hB#'9$C#+E6C#"
3793 "/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#"
3794 "m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#"
3795 "TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP"
3796 "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp"
3797 "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#";
3798
3799static const char* GetDefaultCompressedFontDataTTFBase85()
3800{
3801 return proggy_clean_ttf_compressed_data_base85;
3802}
3803
3804#endif // #ifndef IMGUI_DISABLE
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