Choose foreground or background color : Color Chooser « Swing JFC « Java






Choose foreground or background color

    
/*
 * Created on 17.12.2004
 *
 */

/*
This file is part of BORG.

    BORG 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.

    BORG 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 BORG; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

Copyright 2003 by Mike Berger
 */


import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JColorChooser;
import javax.swing.JFrame;


/**
 * GUI control to easy choose foreground or background color.
 * Indicates color to be stored by its own foreground or background.
 * 
 * @author bsv
 * 
 */
public class JButtonKnowsBgColor extends JButton {
  // colorProperty is ONE color, but can be indicated by fore or back color
  protected Color colorProperty;
  // bg=true means "choosed color is background color"
  // bg=false means "choosed color is foreground color"
  protected boolean bg;
  
  public JButtonKnowsBgColor( String p_text, Color p_color, boolean p_bg ){
    setText( p_text );
    setColorProperty( p_color );
    setBg( p_bg );
    setColorByProperty();
    addActionListener(new ModalListener());
        
  }
  
  public void setColorByProperty(){
    if( isBg() ){
      setBackground( getColorProperty() );
    } else {
      setForeground( getColorProperty() );
    }
  }

  // for testing purposes only
  public static void main(String[] args) {
    JButtonKnowsBgColor jbkbc = new JButtonKnowsBgColor( "choose back", Color.RED, true );
    JButtonKnowsBgColor jbkbc1 = new JButtonKnowsBgColor( "choose fore", Color.BLUE, false );
    JFrame jf = new JFrame();
    jf.setLayout( new BorderLayout() );
    jf.getContentPane().add( jbkbc, BorderLayout.NORTH );
    jf.getContentPane().add( jbkbc1, BorderLayout.CENTER );
    jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    jf.setSize( 100, 200 );
    jf.setVisible(true);
  }
  /**
   * @return Returns the color.
   */
  public Color getColorProperty() {
    return colorProperty;
  }
  /**
   * @param color The color to set.
   */
  public void setColorProperty(Color color) {
    this.colorProperty = color;
  }
  /**
   * @return Returns the bg.
   */
  protected boolean isBg() {
    return bg;
  }
  /**
   * @param bg The bg to set.
   */
  protected void setBg(boolean bg) {
    this.bg = bg;
  }

  private class ModalListener implements ActionListener{
    public void actionPerformed(ActionEvent event){
      Color selected = JColorChooser.showDialog(
        null, 
        isBg()?"Set background":"Set foreground", 
        getColorProperty());
      setColorProperty(selected);
      setColorByProperty();
      }
   }

}

   
    
    
    
  








Related examples in the same category

1.JColorChooser dialog with a custom preview pane.JColorChooser dialog with a custom preview pane.
2.JColorChooser dialog with the custom GrayScalePanel picker tab.JColorChooser dialog with the custom GrayScalePanel picker tab.
3.A quick test of the JColorChooser dialogA quick test of the JColorChooser dialog
4.ColorChooser Sample 1ColorChooser Sample 1
5.Color Chooser DemoColor Chooser Demo
6.System Color ChooserSystem Color Chooser
7.JColorChooser demoJColorChooser demo
8.ColorChooser Demo 2ColorChooser Demo 2
9.Swing ColorChooser DemoSwing ColorChooser Demo
10.Setting the Order of the Color Chooser Panel Tabs in a JColorChooser Dialog
11.Removing a Color Chooser Panel from a JColorChooser Dialog
12.Preview pane simply displays the currently selected color.
13.Retrieving the Color Chooser Panels in a JColorChooser Dialog
14.Customizing the Preview Panel of a JColorChooser Dialog
15.Getting and Setting the Selected Color in a JColorChooser Dialog
16.Creating a JColorChooser Dialog
17.Listening for Changes to the Selected Color in a JColorChooser Dialog
18.Listening for OK and Cancel Events in a JColorChooser Dialog
19.Removing the Preview Panel from a JColorChooser Dialog
20.Adding a Custom Color Chooser Panel to a JColorChooser Dialog
21.extends AbstractColorChooserPanelextends AbstractColorChooserPanel
22.A panel with buttons to pop up three types of color choosers