package gamegui;

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

public class ScrollBar extends Member {
	int size;
	int position;
	int scrollSpeed;
	boolean horizontal;

	public ScrollBar(String newName, int newX, int newY, int newWidth, int newHeight, int scrollSpeed, boolean horizontal) {
		super(newName, newX, newY, newWidth, newHeight);

		size = 0;
		position = 0;
		this.scrollSpeed = scrollSpeed;
		this.horizontal = horizontal;
	}

	public void clear() {
		size = 0;
		position = 0;
	}

	public boolean handleEvent(MouseEvent e) {
		int x = e.getX(), y = e.getY();

		if(horizontal) {
			if(getY() <= y && y <= getY()+getHeight()) {
				if(getX() <= x && x <= getX()+getHeight()) {
					setPosition(position-scrollSpeed);
					return true;
				}else if(getX()+getWidth()-getHeight() <= x && x <= getX()+getWidth()) {
					setPosition(position+scrollSpeed);
					return true;
				}
			}
			return false;
		}else {
			if(getX() <= x && x <= getX()+getWidth()) {
				if(getY() <= y && y <= getY()+getWidth()) {
					setPosition(position-scrollSpeed);
					return true;
				}else if(getY()+getHeight()-getWidth() <= y && y <= getY()+getHeight()) {
					setPosition(position+scrollSpeed);
					return true;
				}
			}
			return false;
		}
	}

	public void draw(Graphics g) {
		g.setColor(Color.black);
		g.fillRect(getX(), getY(), getWidth(), getHeight());

		g.setColor(Color.red);
		g.drawRect(getX(), getY(), getWidth(), getHeight());

		if(horizontal) {
			g.drawLine(getX()+getHeight(), getY(), getX()+getHeight(), getY()+getHeight());
			g.drawLine(getX()+getWidth()-getHeight(), getY(), getX()+getWidth()-getHeight(), getY()+getHeight());

			g.drawLine(getX()+getHeight()+position, getY(), getX()+getHeight()+position, getY()+getHeight());
			g.drawLine(getX()+getHeight()+position+size, getY(), getX()+getHeight()+position+size, getY()+getHeight());

			g.drawLine(getX()+getHeight()*17/20, getY()+getHeight()*3/20, getX()+getHeight()*17/20, getY()+getHeight()*17/20);
			g.drawLine(getX()+getHeight()*17/20, getY()+getHeight()*17/20, getX()+getHeight()*3/20, getY()+getHeight()/2);
			g.drawLine(getX()+getHeight()*3/20, getY()+getHeight()/2, getX()+getHeight()*17/20, getY()+getHeight()*3/20);

			g.drawLine(getX()+getWidth()-getHeight()*17/20, getY()+getHeight()*3/20, getX()+getWidth()-getHeight()*17/20, getY()+getHeight()*17/20);
			g.drawLine(getX()+getWidth()-getHeight()*17/20, getY()+getHeight()*17/20, getX()+getWidth()-getHeight()*3/20, getY()+getHeight()/2);
			g.drawLine(getX()+getWidth()-getHeight()*3/20, getY()+getHeight()/2, getX()+getWidth()-getHeight()*17/20, getY()+getHeight()*3/20);
		}else {
			g.drawLine(getX(), getY()+getWidth(), getX()+getWidth(), getY()+getWidth());
			g.drawLine(getX(), getY()+getHeight()-getWidth(), getX()+getWidth(), getY()+getHeight()-getWidth());

			g.drawLine(getX(), getY()+getWidth()+position, getX()+getWidth(), getY()+getWidth()+position);
			g.drawLine(getX(), getY()+getWidth()+position+size, getX()+getWidth(), getY()+getWidth()+position+size);

			g.drawLine(getX()+getWidth()*3/20, getY()+getWidth()*17/20, getX()+getWidth()*17/20, getY()+getWidth()*17/20);
			g.drawLine(getX()+getWidth()*17/20, getY()+getWidth()*17/20, getX()+getWidth()/2, getY()+getWidth()*3/20);
			g.drawLine(getX()+getWidth()/2, getY()+getWidth()*3/20, getX()+getWidth()*3/20, getY()+getWidth()*17/20);

			g.drawLine(getX()+getWidth()*3/20, getY()+getHeight()-getWidth()*17/20, getX()+getWidth()*17/20, getY()+getHeight()-getWidth()*17/20);
			g.drawLine(getX()+getWidth()*17/20, getY()+getHeight()-getWidth()*17/20, getX()+getWidth()/2, getY()+getHeight()-getWidth()*3/20);
			g.drawLine(getX()+getWidth()/2, getY()+getHeight()-getWidth()*3/20, getX()+getWidth()*3/20, getY()+getHeight()-getWidth()*17/20);
		}
	}

	public int getPosition() {
		return position;
	}

	public int getSize() {
		return size;
	}

	public int getMaxSize() {
		if(horizontal)
			return getWidth()-2*getHeight();
		else
			return getHeight()-2*getWidth();
	}

	public void setPosition(int position) {
		if(position > getMaxSize()-size)
			this.position = getMaxSize()-size;
		else if(position < 0)
			this.position = 0;
		else
			this.position = position;
	}

	public void setSize(int size) {
		this.size = size;
	}
}