ColorMenu.java

package com.dasatti.uhtml;

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;



class ColorMenu	extends	JMenu
{
protected Border m_unselectedBorder;
protected Border m_selectedBorder;
protected Border m_activeBorder;
protected Hashtable	m_panes;
protected ColorPane	m_selected;
public ColorMenu(String	name) {
super(name);
m_unselectedBorder = new CompoundBorder(
new	MatteBorder(1, 1, 1, 1,	getBackground()),
new	BevelBorder(BevelBorder.LOWERED,	
Color.white, Color.gray));
m_selectedBorder = new CompoundBorder(
new	MatteBorder(2, 2, 2, 2,	Color.red),
new	MatteBorder(1, 1, 1, 1,	getBackground()));
m_activeBorder = new CompoundBorder(
new	MatteBorder(2, 2, 2, 2,	Color.blue),
new	MatteBorder(1, 1, 1, 1,	getBackground()));
JPanel p = new JPanel();
p.setBorder(new	EmptyBorder(5, 5, 5, 5));
p.setLayout(new	GridLayout(8, 8));
m_panes	= new Hashtable();
int[] values = new int[] { 0, 128, 192,	255	};
for	(int r=0; r<values.length; r++)	{
for	(int g=0; g<values.length; g++)	{
for	(int b=0; b<values.length; b++)	{
Color c	= new Color(values[r], values[g], values[b]);
ColorPane pn = new ColorPane(c);
p.add(pn);
m_panes.put(c, pn);
}
}
}
add(p);
}
public void	setColor(Color c) {
Object obj = m_panes.get(c);
if (obj	== null)
return;
if (m_selected != null)
m_selected.setSelected(false);
m_selected = (ColorPane)obj;
m_selected.setSelected(true);
}
public Color getColor()	{
if (m_selected == null)
return null;
return m_selected.getColor();
}
public void	doSelection() {
fireActionPerformed(new	ActionEvent(this,	
ActionEvent.ACTION_PERFORMED, getActionCommand()));
}
class ColorPane	extends	JPanel implements MouseListener
{
protected Color	m_c;
protected boolean m_selected;
public ColorPane(Color c) {
m_c	= c;
setBackground(c);
setBorder(m_unselectedBorder);
String msg = "R	"+c.getRed()+",	G "+c.getGreen()+
", B "+c.getBlue();
setToolTipText(msg);
addMouseListener(this);
}
public Color getColor()	{ return m_c; }
public Dimension getPreferredSize()	{
return new Dimension(15, 15);
}
public Dimension getMaximumSize() {	return getPreferredSize(); }
public Dimension getMinimumSize() {	return getPreferredSize(); }
public void	setSelected(boolean	selected) {
m_selected = selected;
if (m_selected)
setBorder(m_selectedBorder);
else
setBorder(m_unselectedBorder);
}
public boolean isSelected()	{ return m_selected; }
public void	mousePressed(MouseEvent	e) {}
public void	mouseClicked(MouseEvent	e) {}
public void	mouseReleased(MouseEvent e)	{
setColor(m_c);
MenuSelectionManager.defaultManager().clearSelectedPath();
doSelection();
}
public void	mouseEntered(MouseEvent	e) {
setBorder(m_activeBorder);
}
public void	mouseExited(MouseEvent e) {
setBorder(m_selected ? m_selectedBorder	:	
m_unselectedBorder);
}
}
}