COLORLIST.JAVA, UNE LISTE AYANT LA CAPACITÉ D'UTILISER DIFFERENTES COULEURS POUR CHAQUE ÉLEMENTS.

// ColorList.java
// Author: SLayers (slayers.mail@wanadoo.fr)
// Date: 07/12/02

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

public class ColorList extends Panel
{	
	public ColorList()
	{
		super(new BorderLayout());
		nb_items = -1;
		pseudos = new String[128];
		add("East",_scrollbar);
		color = new Color[128];
		selected = new boolean[128];
		_offscreenImage = null;
        	_offscreenGraphics = null;
		_fore = Color.blue;
		_back = Color.black;
		AlphabeticOrder = false;
		scroll();
	}
	
	public boolean handleEvent(Event event)
    	{
		int a = 1;
		a=3;
		switch(event.id) {
			case 502: selectionne(event.y);
			case 605: repaint();
        	}
		return true;
    	}
	  
	public void setForeground(Color color)
	{
		_fore = color;
		this.repaint();
	}
	
	public void setBackground(Color color)
	{
		_back = color;
		this.repaint();
	}
	
	public void clear()
	{
		for(int i=0;i<pseudos.length;i++) {
			pseudos[i] = "";
			color[i] = _back;
			selected[i] = false;
		}
		_offscreenGraphics.setColor(_back);
		_offscreenGraphics.fillRect(1, 1, getSize().width, getSize().height);
		
		this.repaint();
		nb_items = -1;
	}
	
	public String getLastSelected()
	{
		return last;
	}
	
	public String getItem(int nb)
	{
		return pseudos[nb];
	}
	
	public String getItemPx(int pixel)
	{
		int index = (pixel-3) / 13;
		index = index + _scrollbar.getValue();
		return pseudos[index];
	}
	
	public void setAlphabeticOrder(boolean flag)
	{
		AlphabeticOrder = flag;
		trie_list();
		repaint();
	}
	
	private void trie_list()			
	{
		String temp1;
		boolean temp2;
		Color temp3;	
		
		for (int i=0; i < this.count()-1; ++i) {
			for (int j=i+1; j < this.count(); ++j) {
				if (pseudos[i].toUpperCase().compareTo(pseudos[j].toUpperCase()) > 0) {
					temp1 = pseudos[i];
					pseudos[i] = pseudos[j];
					pseudos[j] = temp1;
					
					temp2 = selected[i];
					selected[i] = selected[j];
					selected[j] = temp2;
					
					temp3 = color[i];
					color[i] = color[j];
					color[j] = temp3;
				}
			}
		}
	}
	
	public void replaceItem(String s1, int nb)
	{
		pseudos[nb] = s1;
		_offscreenGraphics.setColor(_back);
		_offscreenGraphics.fillRect(1, (nb * 13) + 3, getSize().width-2, 12);
		if(AlphabeticOrder)
			trie_list();
		this.repaint();
	}
	
	public String[] getSelectedItems()
	{
		int max = 0;
		int j = 0;
		
		for(int i=0; i<selected.length; i++)
			if(selected[i])
				max++;
		
		String tab[] = new String[max];
		
		for(int i=0; i<selected.length; i++)
			if(selected[i]) {
				tab[j] = pseudos[i];
				j++;
			}
		
		return tab;
	}
					
	public String getSelectedItem()
	{
		String nick = "";
		
		for(int i=0; i<selected.length; i++)
			if(selected[i]) {
				nick = pseudos[i];
				i = selected.length + 1;
			}
		
		return nick;
	}
	
	public Color getItemColor(int nb)
	{
		return color[nb];
	}
	
	public int count()
	{
		return (nb_items + 1);
	}
	
	public int count_selected()
	{
		int nb = 0;
		
		for(int i=0;i<selected.length; i++)
			if(selected[i])
				nb++;
		
		return nb;
	}
	
	public void selectionne(int y)
	{
		int index = (y-3) / 13;
		index = index + _scrollbar.getValue();
		Color color;
			
		if(selected[index]) {
			color = _back;
			selected[index] = false;
		}
		else {
			color = _fore;
			selected[index] = true;
		}
			
		y = (index * 13);
			
		if(!pseudos[index].equals("")) {
			_offscreenGraphics.setColor(color);
			_offscreenGraphics.fillRect(1, y, getSize().width-3, 12);
		}
		last = pseudos[index];
		this.repaint();
	}
	
	public void change(int index, Color _color, String s)
	{
		pseudos[index] = s;
		color[index] = _color;
		this.repaint();
	}
	
	private void scroll()
	{
		int a = ((getSize().height) / 13);
		if(nb_items >= a) _scrollbar.setVisible(true);
		else _scrollbar.setVisible(false);
	}
	
	public void add(String item, Color _color)
	{
		nb_items++;
		scroll();
		pseudos[nb_items] = item;
		color[nb_items] = _color;
		selected[nb_items] = false;
		if(AlphabeticOrder)
			trie_list();
		this.updateScrollbar();
		this.repaint();
	}
	
	public void suppr(String item)
	{	
		for(int i=0; i<pseudos.length; i++)
			if(item.equals(pseudos[i])) {	
				for(int j=i;j<(pseudos.length-1);j++) {
					pseudos[j] = pseudos[j+1];
					color[j] = color[j+1];
					selected[j] = selected[j+1];
				}
				nb_items--;
				this.repaint();
			}
	}
	
	public void updateScrollbar()
	{
		int max = this.count()+1;
		int visible = (getSize().height) / 13;
		int value = _scrollbar.getValue() + _scrollbar.getVisible() >= _scrollbar.getMaximum() ? max - visible : _scrollbar.getValue();
		_scrollbar.setValues(value, visible, 0, max);
		this.repaint();
	}
	
	public void paint(Graphics g)
	{
		if(_offscreenGraphics == null) {
			_offscreenImage = createImage(getSize().width, getSize().height);
			_offscreenGraphics = _offscreenImage.getGraphics();
		}
		updateScreen();
		g.drawImage(_offscreenImage, 0, 0, this);
	}
	
	public void update(Graphics g)
	{
		paint(g);
	}
	
	private synchronized void updateScreen()
	{
		_offscreenGraphics.setColor(_back);
		_offscreenGraphics.fillRect(1, 0, getSize().width, getSize().height);
		
		FontMetrics metrics = _offscreenGraphics.getFontMetrics();
        	_offscreenGraphics.setColor(new Color(0xc0c0c0));
		_offscreenGraphics.draw3DRect(0, 1, getSize().width-1, getSize().height-2,true);
		_offscreenGraphics.setFont(new Font("Arial", 0, 11));
		
		int first = _scrollbar.getValue();
		int last = first + _scrollbar.getVisible();
		if(last > this.count())
			last = this.count();
		int index = first;
		
		for(int y = metrics.getAscent() + 3; index < last; y += 13) {
			int width = metrics.stringWidth(pseudos[index]);
			if(selected[index]) {
				_offscreenGraphics.setColor(_fore);
				_offscreenGraphics.fillRect(1, y - 10 , getSize().width-3, 12);
			}
			_offscreenGraphics.setColor(color[index]);
			_offscreenGraphics.drawString(pseudos[index], 3, y);
			index++;
		}
}
	
	private boolean AlphabeticOrder;
	
	private Color _fore;
	private Color _back;
	
	private boolean selected[];
	private String pseudos[];
	private Color color[];
	int nb_items;
	public final Scrollbar _scrollbar = new Scrollbar(1);
	private Graphics _offscreenGraphics;
	private Image _offscreenImage;
	private String last = "";
}