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<TITLE>Removing a Color Chooser Panel from a JColorChooser Dialog (Java Developers Almanac Example)
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<A HREF="../javax.swing.colorchooser/pkg.html">javax.swing.colorchooser</A><font color="#666666" class="xsmall-font">
[10 examples]
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<B><A HREF="../javax.swing.colorchooser/pkg.html#Color Chooser Panel">Color Chooser Panel</A></B><font color="#666666" class="xsmall-font">
[4 examples]
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<h3>e881. Removing a Color Chooser Panel from a JColorChooser Dialog</h3>
Removing chooser panels is simply a matter of <code>removeChooserPanel()</code>.
The issue is to identify the panels that are to be kept. There are
three chooser panels in the default <code>JColorChooser</code>
dialog. Although each is implemented by a class in the
<code>javax.swing.colorchooser</code> package, these classes are not public.
This example demonstrates how to identify these panels by class name.
<pre> JColorChooser chooser = new JColorChooser();
// Retrieve the current set of panels
AbstractColorChooserPanel[] oldPanels = chooser.getChooserPanels();
// Remove panels
for (int i=0; i<oldPanels.length; i++) {
String clsName = oldPanels[i].getClass().getName();
if (clsName.equals("javax.swing.colorchooser.DefaultSwatchChooserPanel")) {
// Remove swatch chooser if desired
chooser.removeChooserPanel(oldPanels[i]);
} else if (clsName.equals("javax.swing.colorchooser.DefaultRGBChooserPanel")) {
// Remove rgb chooser if desired
chooser.removeChooserPanel(oldPanels[i]);
} else if (clsName.equals("javax.swing.colorchooser.DefaultHSBChooserPanel")) {
// Remove hsb chooser if desired
chooser.removeChooserPanel(oldPanels[i]);
}
}
// This preview pane simply displays the currently selected color.
public class MyPreviewPane extends JComponent {
// The currently selected color
Color curColor;
public MyPreviewPane(JColorChooser chooser) {
// Initialize the currently selected color
curColor = chooser.getColor();
// Add listener on model to detect changes to selected color
ColorSelectionModel model = chooser.getSelectionModel();
model.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent evt) {
ColorSelectionModel model = (ColorSelectionModel)evt.getSource();
// Get the new color value
curColor = model.getSelectedColor();
}
}) ;
// Set a preferred size
setPreferredSize(new Dimension(<font color="#0066ff"><i>50</i></font>, <font color="#0066ff"><i>50</i></font>));
}
// Paint current color
public void paint(Graphics g) {
g.setColor(curColor);
g.fillRect(0, 0, getWidth()-1, getHeight()-1);
}
}
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<b>Related Examples</b></font></td>
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e880. <a class="eglink" href="GetPanels.html?l=rel">
Retrieving the Color Chooser Panels in a JColorChooser Dialog
</a>
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e882. <a class="eglink" href="MovePanels.html?l=rel">
Setting the Order of the Color Chooser Panel Tabs in a JColorChooser Dialog
</a>
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e883. <a class="eglink" href="CustPanel.html?l=rel">
Adding a Custom Color Chooser Panel to a JColorChooser Dialog
</a>
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See also:
<a class="eglink" href="/egs/javax.swing.colorchooser/pkg.html?l=rel#Events">
Events
</a>
<a class="eglink" href="/egs/javax.swing.colorchooser/pkg.html?l=rel#Preview%20Panel">
Preview Panel
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