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+/* DefaultRGHChooserPanel.java --
+ Copyright (C) 2004, 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package javax.swing.colorchooser;
+
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.GridBagConstraints;
+import java.awt.GridBagLayout;
+
+import javax.swing.Icon;
+import javax.swing.JColorChooser;
+import javax.swing.JLabel;
+import javax.swing.JSlider;
+import javax.swing.JSpinner;
+import javax.swing.SpinnerNumberModel;
+import javax.swing.SwingConstants;
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
+
+/**
+ * This is the default RGB panel for the JColorChooser. The color is selected
+ * using three sliders that represent the RGB values.
+ */
+class DefaultRGBChooserPanel extends AbstractColorChooserPanel
+{
+ /**
+ * This class handles the slider value changes for all three sliders.
+ */
+ class SliderHandler implements ChangeListener
+ {
+ /**
+ * This method is called whenever any of the slider values change.
+ *
+ * @param e The ChangeEvent.
+ */
+ public void stateChanged(ChangeEvent e)
+ {
+ if (updateChange)
+ return;
+
+ int color = R.getValue() << 16 | G.getValue() << 8 | B.getValue();
+
+ sliderChange = true;
+ getColorSelectionModel().setSelectedColor(new Color(color));
+ sliderChange = false;
+ }
+ }
+
+ /**
+ * This class handles the Spinner values changing.
+ */
+ class SpinnerHandler implements ChangeListener
+ {
+ /**
+ * This method is called whenever any of the JSpinners change values.
+ *
+ * @param e The ChangeEvent.
+ */
+ public void stateChanged(ChangeEvent e)
+ {
+ if (updateChange)
+ return;
+
+ int red = ((Number) RSpinner.getValue()).intValue();
+ int green = ((Number) GSpinner.getValue()).intValue();
+ int blue = ((Number) BSpinner.getValue()).intValue();
+
+ int color = red << 16 | green << 8 | blue;
+
+ spinnerChange = true;
+ getColorSelectionModel().setSelectedColor(new Color(color));
+ spinnerChange = false;
+ }
+ }
+
+ /** Whether the color change was initiated by the spinners.
+ * This is package-private to avoid an accessor method. */
+ transient boolean spinnerChange = false;
+
+ /** Whether the color change was initiated by the sliders.
+ * This is package-private to avoid an accessor method. */
+ transient boolean sliderChange = false;
+
+ /**
+ * Whether the change was forced by the chooser (meaning the color has
+ * already been changed).
+ * This is package-private to avoid an accessor method.
+ */
+ transient boolean updateChange = false;
+
+ /** The ChangeListener for the sliders. */
+ private transient ChangeListener colorChanger;
+
+ /** The ChangeListener for the spinners. */
+ private transient ChangeListener spinnerHandler;
+
+ /** The slider that handles the red values.
+ * This is package-private to avoid an accessor method. */
+ transient JSlider R;
+
+ /** The slider that handles the green values.
+ * This is package-private to avoid an accessor method. */
+ transient JSlider G;
+
+ /** The slider that handles the blue values.
+ * This is package-private to avoid an accessor method. */
+ transient JSlider B;
+
+ /** The label for the red slider. */
+ private transient JLabel RLabel;
+
+ /** The label for the green slider. */
+ private transient JLabel GLabel;
+
+ /** The label for the blue slider. */
+ private transient JLabel BLabel;
+
+ /** The spinner that handles the red values.
+ * This is package-private to avoid an accessor method. */
+ transient JSpinner RSpinner;
+
+ /** The spinner that handles the green values.
+ * This is package-private to avoid an accessor method. */
+ transient JSpinner GSpinner;
+
+ /** The spinner that handles the blue values.
+ * This is package-private to avoid an accessor method. */
+ transient JSpinner BSpinner;
+
+ /**
+ * Creates a new DefaultRGBChooserPanel object.
+ */
+ public DefaultRGBChooserPanel()
+ {
+ super();
+ }
+
+ /**
+ * This method returns the name displayed in the JTabbedPane.
+ *
+ * @return The name displayed in the JTabbedPane.
+ */
+ public String getDisplayName()
+ {
+ return "RGB";
+ }
+
+ /**
+ * This method updates the chooser panel with the new color chosen in the
+ * JColorChooser.
+ */
+ public void updateChooser()
+ {
+ Color c = getColorFromModel();
+ int rgb = c.getRGB();
+
+ int red = rgb >> 16 & 0xff;
+ int green = rgb >> 8 & 0xff;
+ int blue = rgb & 0xff;
+
+ updateChange = true;
+
+ if (! sliderChange)
+ {
+ if (R != null)
+ R.setValue(red);
+ if (G != null)
+ G.setValue(green);
+ if (B != null)
+ B.setValue(blue);
+ }
+ if (! spinnerChange)
+ {
+ if (GSpinner != null)
+ GSpinner.setValue(new Integer(green));
+ if (RSpinner != null)
+ RSpinner.setValue(new Integer(red));
+ if (BSpinner != null)
+ BSpinner.setValue(new Integer(blue));
+ }
+
+ updateChange = false;
+
+ revalidate();
+ repaint();
+ }
+
+ /**
+ * This method builds the chooser panel.
+ */
+ protected void buildChooser()
+ {
+ setLayout(new GridBagLayout());
+
+ RLabel = new JLabel("Red");
+ RLabel.setDisplayedMnemonic('d');
+ GLabel = new JLabel("Green");
+ GLabel.setDisplayedMnemonic('n');
+ BLabel = new JLabel("Blue");
+ BLabel.setDisplayedMnemonic('B');
+
+ R = new JSlider(SwingConstants.HORIZONTAL, 0, 255, 255);
+ G = new JSlider(SwingConstants.HORIZONTAL, 0, 255, 255);
+ B = new JSlider(SwingConstants.HORIZONTAL, 0, 255, 255);
+
+ R.setPaintTicks(true);
+ R.setSnapToTicks(false);
+ G.setPaintTicks(true);
+ G.setSnapToTicks(false);
+ B.setPaintTicks(true);
+ B.setSnapToTicks(false);
+
+ R.setLabelTable(R.createStandardLabels(85));
+ R.setPaintLabels(true);
+ G.setLabelTable(G.createStandardLabels(85));
+ G.setPaintLabels(true);
+ B.setLabelTable(B.createStandardLabels(85));
+ B.setPaintLabels(true);
+
+ R.setMajorTickSpacing(85);
+ G.setMajorTickSpacing(85);
+ B.setMajorTickSpacing(85);
+
+ R.setMinorTickSpacing(17);
+ G.setMinorTickSpacing(17);
+ B.setMinorTickSpacing(17);
+
+ RSpinner = new JSpinner(new SpinnerNumberModel(R.getValue(),
+ R.getMinimum(),
+ R.getMaximum(), 1));
+ GSpinner = new JSpinner(new SpinnerNumberModel(G.getValue(),
+ G.getMinimum(),
+ G.getMaximum(), 1));
+ BSpinner = new JSpinner(new SpinnerNumberModel(B.getValue(),
+ B.getMinimum(),
+ B.getMaximum(), 1));
+
+ RLabel.setLabelFor(R);
+ GLabel.setLabelFor(G);
+ BLabel.setLabelFor(B);
+
+ GridBagConstraints bag = new GridBagConstraints();
+ bag.fill = GridBagConstraints.VERTICAL;
+
+ bag.gridx = 0;
+ bag.gridy = 0;
+ add(RLabel, bag);
+
+ bag.gridx = 1;
+ add(R, bag);
+
+ bag.gridx = 2;
+ add(RSpinner, bag);
+
+ bag.gridx = 0;
+ bag.gridy = 1;
+ add(GLabel, bag);
+
+ bag.gridx = 1;
+ add(G, bag);
+
+ bag.gridx = 2;
+ add(GSpinner, bag);
+
+ bag.gridx = 0;
+ bag.gridy = 2;
+ add(BLabel, bag);
+
+ bag.gridx = 1;
+ add(B, bag);
+
+ bag.gridx = 2;
+ add(BSpinner, bag);
+
+ installListeners();
+ }
+
+ /**
+ * This method uninstalls the chooser panel from the JColorChooser.
+ *
+ * @param chooser The JColorChooser to remove this chooser panel from.
+ */
+ public void uninstallChooserPanel(JColorChooser chooser)
+ {
+ uninstallListeners();
+ removeAll();
+
+ R = null;
+ G = null;
+ B = null;
+
+ RSpinner = null;
+ GSpinner = null;
+ BSpinner = null;
+
+ super.uninstallChooserPanel(chooser);
+ }
+
+ /**
+ * This method uninstalls any listeners that were added by the chooser
+ * panel.
+ */
+ private void uninstallListeners()
+ {
+ R.removeChangeListener(colorChanger);
+ G.removeChangeListener(colorChanger);
+ B.removeChangeListener(colorChanger);
+
+ colorChanger = null;
+
+ RSpinner.removeChangeListener(spinnerHandler);
+ GSpinner.removeChangeListener(spinnerHandler);
+ BSpinner.removeChangeListener(spinnerHandler);
+
+ spinnerHandler = null;
+ }
+
+ /**
+ * This method installs any listeners that the chooser panel needs to
+ * operate.
+ */
+ private void installListeners()
+ {
+ colorChanger = new SliderHandler();
+
+ R.addChangeListener(colorChanger);
+ G.addChangeListener(colorChanger);
+ B.addChangeListener(colorChanger);
+
+ spinnerHandler = new SpinnerHandler();
+
+ RSpinner.addChangeListener(spinnerHandler);
+ GSpinner.addChangeListener(spinnerHandler);
+ BSpinner.addChangeListener(spinnerHandler);
+ }
+
+ /**
+ * This method returns the small display icon.
+ *
+ * @return The small display icon.
+ */
+ public Icon getSmallDisplayIcon()
+ {
+ return null;
+ }
+
+ /**
+ * This method returns the large display icon.
+ *
+ * @return The large display icon.
+ */
+ public Icon getLargeDisplayIcon()
+ {
+ return null;
+ }
+
+ /**
+ * This method paints the default RGB chooser panel.
+ *
+ * @param g The Graphics object to paint with.
+ */
+ public void paint(Graphics g)
+ {
+ super.paint(g);
+ }
+}