/**************************************************************************
 * Copyright (c) 2007, 2008 Gregory Jordan
 * 
 * This file is part of PhyloWidget.
 * 
 * PhyloWidget is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 * 
 * PhyloWidget is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with PhyloWidget.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.andrewberman.ui;

import java.awt.Cursor;
import java.awt.event.MouseEvent;

import processing.core.PApplet;

public class LabelHyperlink extends Label
{

	String url;
	boolean hovered;
	boolean pressed;
	
	public LabelHyperlink(PApplet p)
	{
		this(p,"");
	}

	public LabelHyperlink(PApplet p, String s)
	{
		super(p, s);
		url = s;
		setColor(60, 60, 220);
	}

	public void setURL(String s)
	{
		url = s;
	}
	
	public String getURL()
	{
		return url;
	}
	
	@Override
	public void draw()
	{
//		super.draw();
		cache();
		Color col = color;
		if (pressed)
			col = color.darker(80);
		
		p.fill(col.getRGB());
		p.textFont(c.getPFont());
		p.textSize(fontSize);
		p.smooth();
		p.textAlign(PApplet.LEFT);
		p.text(label, x, y);
		
		if (hovered)
		{
			p.strokeWeight(fontSize/10);
			p.stroke(col.getRGB());
			p.line(x, y+fontSize/4, x+cacheW, y+fontSize/10);
		}
	}
	
	UIRectangle tmpR = new UIRectangle();

	boolean containsPoint(Point pt)
	{
		cache();
		tmpR.setRect(x, y - cacheA, cacheW, cacheH);
		return tmpR.contains(pt);
	}

	void openURL()
	{
		p.link(getURL(),"_new");
//		app.getAppletContext().
	}
	
	@Override
	public void mouseEvent(MouseEvent e, Point screen, Point model)
	{
		super.mouseEvent(e, screen, model);
		
		if (containsPoint(screen))
		{
			if (UIUtils.getCursorOwner() == null)
			{
				UIUtils.setCursor(this, p, Cursor.HAND_CURSOR);
				hovered = true;
			}
			
			if (e.getID() == MouseEvent.MOUSE_CLICKED)
			{
				openURL();
			} else if (e.getID() == MouseEvent.MOUSE_PRESSED)
				pressed = true;
		} else
		{
			hovered = false;
			UIUtils.releaseCursor(this, p);
		}
		if (e.getID() == MouseEvent.MOUSE_RELEASED)
			pressed = false;
	}
}