Java examples for Swing:JColorChooser
Create Custom color chooser panel
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.border.*; import javax.swing.event.*; import javax.swing.colorchooser.*; /* Used by ColorChooserDemo2.java. */ class CrayonPanel extends AbstractColorChooserPanel implements ActionListener {// w ww .j a va 2 s . c o m JToggleButton redCrayon; JToggleButton yellowCrayon; JToggleButton greenCrayon; JToggleButton blueCrayon; public void updateChooser() { Color color = getColorFromModel(); if (Color.red.equals(color)) { redCrayon.setSelected(true); } else if (Color.yellow.equals(color)) { yellowCrayon.setSelected(true); } else if (Color.green.equals(color)) { greenCrayon.setSelected(true); } else if (Color.blue.equals(color)) { blueCrayon.setSelected(true); } } protected JToggleButton createCrayon(String name, Border normalBorder) { JToggleButton crayon = new JToggleButton(); crayon.setActionCommand(name); crayon.addActionListener(this); //Set the image or, if that's invalid, equivalent text. ImageIcon icon = createImageIcon("images/" + name + ".gif"); if (icon != null) { crayon.setIcon(icon); crayon.setToolTipText("The " + name + " crayon"); crayon.setBorder(normalBorder); } else { crayon.setText("Image not found. This is the " + name + " button."); crayon.setFont(crayon.getFont().deriveFont(Font.ITALIC)); crayon.setHorizontalAlignment(JButton.HORIZONTAL); crayon.setBorder(BorderFactory.createLineBorder(Color.BLACK)); } return crayon; } protected void buildChooser() { setLayout(new GridLayout(0, 1)); ButtonGroup boxOfCrayons = new ButtonGroup(); Border border = BorderFactory.createEmptyBorder(4, 4, 4, 4); redCrayon = createCrayon("red", border); boxOfCrayons.add(redCrayon); add(redCrayon); yellowCrayon = createCrayon("yellow", border); boxOfCrayons.add(yellowCrayon); add(yellowCrayon); greenCrayon = createCrayon("green", border); boxOfCrayons.add(greenCrayon); add(greenCrayon); blueCrayon = createCrayon("blue", border); boxOfCrayons.add(blueCrayon); add(blueCrayon); } /** Returns an ImageIcon, or null if the path was invalid. */ protected static ImageIcon createImageIcon(String path) { java.net.URL imgURL = CrayonPanel.class.getResource(path); if (imgURL != null) { return new ImageIcon(imgURL); } else { System.err.println("Couldn't find file: " + path); return null; } } public void actionPerformed(ActionEvent e) { Color newColor = null; String command = ((JToggleButton) e.getSource()).getActionCommand(); if ("green".equals(command)) newColor = Color.green; else if ("red".equals(command)) newColor = Color.red; else if ("yellow".equals(command)) newColor = Color.yellow; else if ("blue".equals(command)) newColor = Color.blue; getColorSelectionModel().setSelectedColor(newColor); } public String getDisplayName() { return "Crayons"; } public Icon getSmallDisplayIcon() { return null; } public Icon getLargeDisplayIcon() { return null; } } /* * ColorChooserDemo2.java requires these files: * CrayonPanel.java * images/red.gif * images/yellow.gif * images/green.gif * images/blue.gif */ public class ColorChooserDemo2 extends JPanel implements ActionListener, ChangeListener { public JLabel banner; public JColorChooser tcc; public ColorChooserDemo2() { super(new BorderLayout()); //Set up banner to use as custom preview panel banner = new JLabel("Welcome to the Tutorial Zone!", JLabel.CENTER); banner.setForeground(Color.yellow); banner.setBackground(Color.blue); banner.setOpaque(true); banner.setFont(new Font("SansSerif", Font.BOLD, 24)); banner.setPreferredSize(new Dimension(100, 65)); JPanel bannerPanel = new JPanel(new BorderLayout()); bannerPanel.add(banner, BorderLayout.CENTER); bannerPanel.setBorder(BorderFactory.createTitledBorder("Banner")); //Set up color chooser for setting background color JPanel panel = new JPanel(); //use FlowLayout JButton bcc = new JButton("Show Color Chooser..."); bcc.addActionListener(this); panel.add(bcc); panel.setBorder(BorderFactory .createTitledBorder("Choose Background Color")); //Set up color chooser for setting text color tcc = new JColorChooser(); tcc.getSelectionModel().addChangeListener(this); tcc.setBorder(BorderFactory.createTitledBorder("Choose Text Color")); //Remove the preview panel tcc.setPreviewPanel(new JPanel()); //Override the chooser panels with our own AbstractColorChooserPanel panels[] = { new CrayonPanel() }; tcc.setChooserPanels(panels); tcc.setColor(banner.getForeground()); add(bannerPanel, BorderLayout.PAGE_START); add(panel, BorderLayout.CENTER); add(tcc, BorderLayout.PAGE_END); } public void actionPerformed(ActionEvent e) { Color newColor = JColorChooser.showDialog(ColorChooserDemo2.this, "Choose Background Color", banner.getBackground()); if (newColor != null) { banner.setBackground(newColor); } } public void stateChanged(ChangeEvent e) { Color newColor = tcc.getColor(); banner.setForeground(newColor); } /** * Create the GUI and show it. For thread safety, * this method should be invoked from the * event-dispatching thread. */ private static void createAndShowGUI() { //Create and set up the window. JFrame frame = new JFrame("ColorChooserDemo2"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //Create and set up the content pane. JComponent newContentPane = new ColorChooserDemo2(); newContentPane.setOpaque(true); //content panes must be opaque frame.setContentPane(newContentPane); //Display the window. frame.pack(); frame.setVisible(true); } public static void main(String[] args) { //Schedule a job for the event-dispatching thread: //creating and showing this application's GUI. javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { createAndShowGUI(); } }); } } /* * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Oracle or the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */