alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

What this is

This file is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Other links

The source code

/*
 *                 Sun Public License Notice
 * 
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 * 
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2000 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package examples.colorpicker;

/** This class is an entry point of the color picker sample application.
 * It creates and shows the main application frame.
 */
public class ColorPicker extends javax.swing.JFrame {

    /** Color Picker constructor.
     * It initializes all GUI components.
     */
    public ColorPicker() {
        initComponents ();
        pack ();

    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the FormEditor.
     */
    private void initComponents() {//GEN-BEGIN:initComponents
        sliderPanel = new javax.swing.JPanel();
        redSlider = new javax.swing.JSlider();
        greenSlider = new javax.swing.JSlider();
        blueSlider = new javax.swing.JSlider();
        colorPreviewPanel = new javax.swing.JPanel();
        colorPreview1 = new examples.colorpicker.ColorPreview();

        addWindowListener(new java.awt.event.WindowAdapter() {
            public void windowClosing(java.awt.event.WindowEvent evt) {
                exitForm(evt);
            }
        });

        sliderPanel.setLayout(new javax.swing.BoxLayout(sliderPanel, javax.swing.BoxLayout.Y_AXIS));

        redSlider.setMaximum(255);
        redSlider.setBorder(new javax.swing.border.TitledBorder(new javax.swing.border.EtchedBorder(null, new java.awt.Color(134, 134, 134)), "Red", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Dialog", 1, 12), java.awt.Color.black));
        redSlider.addChangeListener(new javax.swing.event.ChangeListener() {
            public void stateChanged(javax.swing.event.ChangeEvent evt) {
                redSliderStateChanged(evt);
            }
        });

        sliderPanel.add(redSlider);
        redSlider.getAccessibleContext().setAccessibleName("Red Slider");
        redSlider.getAccessibleContext().setAccessibleDescription("Red slider.");

        greenSlider.setMaximum(255);
        greenSlider.setBorder(new javax.swing.border.TitledBorder(new javax.swing.border.EtchedBorder(null, new java.awt.Color(134, 134, 134)), "Green", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Dialog", 1, 12), java.awt.Color.black));
        greenSlider.addChangeListener(new javax.swing.event.ChangeListener() {
            public void stateChanged(javax.swing.event.ChangeEvent evt) {
                greenSliderStateChanged(evt);
            }
        });

        sliderPanel.add(greenSlider);
        greenSlider.getAccessibleContext().setAccessibleName("Green Slider");
        greenSlider.getAccessibleContext().setAccessibleDescription("Green slider.");

        blueSlider.setMaximum(255);
        blueSlider.setBorder(new javax.swing.border.TitledBorder(new javax.swing.border.EtchedBorder(null, new java.awt.Color(134, 134, 134)), "Blue", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Dialog", 1, 12), java.awt.Color.black));
        blueSlider.addChangeListener(new javax.swing.event.ChangeListener() {
            public void stateChanged(javax.swing.event.ChangeEvent evt) {
                blueSliderStateChanged(evt);
            }
        });

        sliderPanel.add(blueSlider);
        blueSlider.getAccessibleContext().setAccessibleName("Blue Slider");
        blueSlider.getAccessibleContext().setAccessibleDescription("Blue slider.");

        getContentPane().add(sliderPanel, java.awt.BorderLayout.NORTH);

        colorPreviewPanel.setLayout(new java.awt.BorderLayout());

        colorPreviewPanel.setBorder(new javax.swing.border.TitledBorder(new javax.swing.border.EtchedBorder(null, new java.awt.Color(134, 134, 134)), "Color Preview", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Dialog", 1, 12), java.awt.Color.black));
        colorPreviewPanel.add(colorPreview1, java.awt.BorderLayout.CENTER);
        colorPreview1.getAccessibleContext().setAccessibleName("Color Preview Component");
        colorPreview1.getAccessibleContext().setAccessibleDescription("Color preview component.");

        getContentPane().add(colorPreviewPanel, java.awt.BorderLayout.CENTER);
        colorPreviewPanel.getAccessibleContext().setAccessibleName("Color Preview Panel");
        colorPreviewPanel.getAccessibleContext().setAccessibleDescription("Color preview panel.");

    }//GEN-END:initComponents

    /** This method is called when blue slider position is changed.
     * It sets the current blue color value.
     * @param evt ChangeEvent instance passed from stateChanged event.
     */
    private void blueSliderStateChanged (javax.swing.event.ChangeEvent evt) {//GEN-FIRST:event_blueSliderStateChanged
        colorPreview1.setBlue (blueSlider.getValue ());
    }//GEN-LAST:event_blueSliderStateChanged

    /** This method is called when green slider position is changed.
     * It sets the current green color value.
     * @param evt ChangeEvent instance passed from stateChanged event.
     */
    private void greenSliderStateChanged (javax.swing.event.ChangeEvent evt) {//GEN-FIRST:event_greenSliderStateChanged
        colorPreview1.setGreen (greenSlider.getValue ());
    }//GEN-LAST:event_greenSliderStateChanged

    /** This method is called when red slider position is changed.
     * It sets the current red color value.
     * @param evt ChangeEvent instance passed from stateChanged event.
     */
    private void redSliderStateChanged (javax.swing.event.ChangeEvent evt) {//GEN-FIRST:event_redSliderStateChanged
        colorPreview1.setRed (redSlider.getValue ());
    }//GEN-LAST:event_redSliderStateChanged

    /** This method is called when the application frame is closed.
     * @param evt WindowEvent instance passed from windowClosing event.
     */
    private void exitForm(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_exitForm
        System.exit (0);
    }//GEN-LAST:event_exitForm


    // Variables declaration - do not modify//GEN-BEGIN:variables
    private examples.colorpicker.ColorPreview colorPreview1;
    private javax.swing.JPanel colorPreviewPanel;
    private javax.swing.JSlider greenSlider;
    private javax.swing.JPanel sliderPanel;
    private javax.swing.JSlider redSlider;
    private javax.swing.JSlider blueSlider;
    // End of variables declaration//GEN-END:variables


    /** Starts the application.
     * @param args Application arguments.
     */    
    public static void main(java.lang.String[] args) {
        new ColorPicker ().show ();
    }

}
... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.