/*
* org.openmicroscopy.shoola.util.ui.clsf.TreeCheckLabel
*
*------------------------------------------------------------------------------
* Copyright (C) 2006 University of Dundee. All rights reserved.
*
*
* This program 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.
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*------------------------------------------------------------------------------
*/
package org.openmicroscopy.shoola.util.ui.clsf;
//Java imports
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import javax.swing.Icon;
import javax.swing.JLabel;
import javax.swing.UIManager;
import javax.swing.plaf.ColorUIResource;
//Third-party libraries
//Application-internal dependencies
/**
* A component to paint the icon and the text.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @version 2.2
* <small>
* (<b>Internal version:</b> $Revision$ $Date$)
* </small>
* @since OME2.2
*/
class TreeCheckLabel
extends JLabel
{
/** Flag to indicate that the label is selected. */
private boolean selected;
/** Flag to indicate that the label has focus. */
private boolean hasFocus;
/** Creates a new instance. */
TreeCheckLabel()
{
selected = false;
hasFocus = false;
}
/**
* Sets to <code>true</code> if selected, <code>false</code> otherwise.
*
* @param selected The value to set.
*/
void setSelected(boolean selected) { this.selected = selected; }
/**
* Sets to <code>true</code> if the component has focus, <code>false</code>
* otherwise.
*
* @param hasFocus The value to set.
*/
void setFocus(boolean hasFocus) { this.hasFocus = hasFocus; }
/**
* Overridden to set the background color.
* @see JLabel#setBackground(Color)
*/
public void setBackground(Color color)
{
if (color instanceof ColorUIResource) color = null;
super.setBackground(color);
}
/**
* Overridden to set the ideal size of the component.
* @see JLabel#getPreferredSize()
*/
public Dimension getPreferredSize()
{
Dimension d = super.getPreferredSize();
if (d != null) d = new Dimension(d.width+3, d.height);
return d;
}
/**
* Overridden to properly paint the icon and the text.
* @see JLabel#paintComponent(Graphics)
*/
public void paintComponent(Graphics g)
{
Color c = UIManager.getColor("Tree.textBackground");
if (selected) c = UIManager.getColor("Tree.selectionBackground");
g.setColor(c);
Dimension d = getPreferredSize();
int offset = 0;
Icon currentI = getIcon();
if (currentI != null)
offset = currentI.getIconWidth()+Math.max(0, getIconTextGap()-1);
g.fillRect(offset, 0, d.width-offset-1, d.height);
if (hasFocus) {
g.setColor(UIManager.getColor("Tree.selectionBorderColor"));
g.drawRect(offset, 0, d.width-1-offset, d.height-1);
}
super.paintComponent(g);
}
}