source: java-rpg-client/gamegui/Menu.java@ f0f2ead

package gamegui;

import java.awt.*;
import java.awt.event.*;
import java.util.*;

public class Menu extends Member {
        private ArrayList<String> items;
        private int selectedIndex;
        private String label;
        private Font font;
        private boolean open;   //determines if the menu is pulled down
        private FontMetrics metrics;
        
        public Menu(String newName, int newX, int newY, int newWidth, int newHeight, String newLabel, Font newFont) {
                super(newName, newX, newY, newWidth, newHeight);
                
                items = new ArrayList<String>();
                selectedIndex = -1;
                label = newLabel;
                font = newFont;
                open = false;
        }
        
        public boolean handleEvent(MouseEvent e) {
                if(getX()+metrics.stringWidth(label)+4 <= e.getX() && e.getX() <= getX()+getWidth() && getY()+getHeight() <= e.getY() && e.getY() <= getY()+getHeight()+15*items.size() && open) {
                        selectedIndex = (e.getY()-getY()-getHeight())/15;
                        open = false;
                        return true;
                }
                
                if(getX()+getWidth()-getHeight() <= e.getX() && e.getX() <= getX()+getWidth() && getY() <= e.getY() && e.getY() <= getY()+getHeight()) {
                        open = !open;
                        return true;
                }
        
                return false;
        }
        
        public void clear() {
                if(selectedIndex != -1)
                        selectedIndex = 0;
        }
        
        public void draw(Graphics g)
        {
                metrics = g.getFontMetrics(font);
                
                g.setColor(Color.black);
        g.fillRect(getX(), getY(), getWidth(), getHeight());
        
        g.setColor(Color.red);
                g.drawRect(getX(), getY(), getWidth(), getHeight());
                
                g.drawLine(getX()+metrics.stringWidth(label)+4, getY(), getX()+metrics.stringWidth(label)+4, getY()+getHeight());
                g.drawLine(getX()+getWidth()-getHeight(), getY(), getX()+getWidth()-getHeight(), getY()+getHeight());
        
                g.drawLine(getX()+getWidth()-getHeight()*17/20, getY()+getHeight()*3/20, getX()+getWidth()-getHeight()*3/20, getY()+getHeight()*3/20);
                g.drawLine(getX()+getWidth()-getHeight()*17/20, getY()+getHeight()*3/20, getX()+getWidth()-getHeight()/2, getY()+getHeight()*17/20);
                g.drawLine(getX()+getWidth()-getHeight()/2, getY()+getHeight()*17/20, getX()+getWidth()-getHeight()*3/20, getY()+getHeight()*3/20);
                
                g.setColor(Color.green);
                g.setFont(font);
                g.drawString(label, getX()+2, getY()+(getHeight()+metrics.getHeight())/2-2);
                g.drawString(items.get(selectedIndex), getX()+metrics.stringWidth(label)+8, getY()+(getHeight()+metrics.getHeight())/2-2);
                
                if(open) {
                        g.setColor(Color.black);
                g.fillRect(getX()+metrics.stringWidth(label)+4, getY()+getHeight(), getWidth()-metrics.stringWidth(label)-4, items.size()*15);
                
                g.setColor(Color.red);
                        g.drawRect(getX()+metrics.stringWidth(label)+4, getY()+getHeight(), getWidth()-metrics.stringWidth(label)-4, items.size()*15);
                
                if(selectedIndex != -1) {
                                g.setColor(Color.blue);
                        g.fillRect(getX()+metrics.stringWidth(label)+5, getY()+getHeight()+1+15*selectedIndex, getWidth()-metrics.stringWidth(label)-5, 14);
                        }
                        
                g.setColor(Color.green);
                        for(int x=0; x<items.size(); x++)
                                g.drawString(items.get(x), getX()+metrics.stringWidth(label)+8, getY()+(getHeight()+metrics.getHeight())/2+15*(x+1));
                }
        }
        
        public void add(String newString) {
                selectedIndex = 0;
                items.add(newString);
        }
        
        public String getSelected() {
                return items.get(selectedIndex);
        }
}