/*
 * Get_Screen_Color.bsh:  A small text field that shows RGB or
 * Hexadecimal color value for the current mouse coordinate.
 *
 * USAGE:
 *
 *	1. Press UP or DOWN to toggle RGB/Hexadecimal values
 *	2. Press ENTER to copy the current value to the clipboard and stop.
 *	3. Press ESCAPE to stop without copying.
 *
 * IMPORTANT: Requires JRE 1.5 or later
 *
 * version 1.0 Sep 3, 2005
 * @author Delvin Johnson, delvinj@gmail.com
 */

void openWin(View v) throws AWTException
{
	int mode = 0;	// 0=RGB, 1=HEX
	Robot robbie = new Robot();

	JTextField b = new JTextField("", 14);
	b.setFont(new Font("DialogInput", Font.PLAIN, 12));
	b.setHorizontalAlignment(JTextField.CENTER);
	b.setBorder(
		BorderFactory.createCompoundBorder(
			BorderFactory.createLineBorder(Color.black, 1),
			BorderFactory.createEmptyBorder(4,4,4,4)));
	b.setBackground(new Color(0xFFFFD2));
	b.setCaretColor(b.getBackground());

	JWindow win = new JWindow(v);
	win.setAlwaysOnTop(true);
	win.getContentPane().add(b);
	win.pack();

	Color lastColor;

	ActionListener al = new ActionListener()
	{
		public void actionPerformed(ActionEvent e)
		{
			if(!win.isVisible()) win.setVisible(true);
			Point p = MouseInfo.getPointerInfo().getLocation();
			win.setLocation(p.x+4, p.y+22);
			Color c = robbie.getPixelColor(p.x, p.y);
			if(!c.equals(lastColor))
			{
				String txt;
				switch(mode)
				{
					case 1 : txt = toHexString(c);
						break;
					case 0 :
					default : txt = toRGBString(c);
				}
				b.setText(txt);
			}
			lastColor = c;
		}
	};

	javax.swing.Timer timer = new javax.swing.Timer(100, al);

	public void keyReleased(KeyEvent e)
	{
		if(e.getKeyCode() == KeyEvent.VK_ESCAPE)
		{
			timer.stop();
			win.setVisible(false);
			win.dispose();
		}
		else if(e.getKeyCode() == KeyEvent.VK_ENTER)
		{
			timer.stop();
			Registers.setRegister('$', b.getText());
			win.setVisible(false);
			win.dispose();
		}
		else if(e.getKeyCode() == KeyEvent.VK_UP)
		{
			if(mode < 1) mode++;
			else mode = 0;
			lastColor = null;
		}
		else if(e.getKeyCode() == KeyEvent.VK_DOWN)
		{
			if(mode > 0) mode--;
			else mode = 1;
			lastColor = null;
		}
	}

	public void keyPressed(KeyEvent e) { }
	public void keyTyped(KeyEvent e) { }
	public void focusGained(FocusEvent e) { }

	public void focusLost(FocusEvent e)
	{
		timer.stop();
		win.setVisible(false);
		win.dispose();
	}

	b.addFocusListener(this);
	b.addKeyListener(this);

	timer.start();

	b.requestFocus();
}


String toHexString(Color c)
{
	StringBuffer sb = new StringBuffer("0x");
	int[] rgb = new int[] { c.getRed(), c.getGreen(), c.getBlue() };
	for(int j=0; j < rgb.length; j++)
	{
		if(rgb[j] <= 15) sb.append("0");
		sb.append(Integer.toHexString(rgb[j]).toUpperCase());
	}
	return sb.toString();
}


String toRGBString(Color c)
{
	return c.getRed() + ", " + c.getGreen() + ", " + c.getBlue();
}


try
{
	openWin(jEdit.getActiveView());
} catch(AWTException x)
{
	Macros.message(view, x.toString());
}