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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
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* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code 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
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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*/
/*
* @ test
* @ key headful
* @ bug 6199676
* @ summary Tests preview panel after L & F changing
*/
import java.awt.Component;
import java.awt.Container;
import javax.swing.JColorChooser;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class Test6199676 implements Runnable {
public static void main(String[] args) throws Exception {
SwingUtilities.invokeAndWait(new Test6199676());
}
private static Component getPreview(Container container) {
String name = "ColorChooser.previewPanelHolder" ;
for (Component component : container.getComponents()) {
if (!name.equals(component.getName())) {
component = (component instanceof Container)
? getPreview((Container) component)
: null ;
}
if (component instanceof Container) {
container = (Container) component;
return 1 == container.getComponentCount()
? container.getComponent(0 )
: null ;
}
}
return null ;
}
private static boolean isShowing(Component component) {
return (component != null ) && component.isShowing();
}
public synchronized void run() {
JColorChooser chooser = new JColorChooser();
JFrame frame = new JFrame(getClass().getName());
try {
frame.add(chooser);
frame.setVisible(true );
// Check default preview panel
setLookAndFeel(UIManager.getInstalledLookAndFeels()[0 ]);
SwingUtilities.updateComponentTreeUI(chooser);
Component component = chooser.getPreviewPanel();
if (component == null ) {
component = getPreview(chooser);
}
if (!isShowing(component)) {
throw new RuntimeException(
"default preview panel is not showing" );
}
// Check custom preview panel
chooser.setPreviewPanel(new JPanel());
setLookAndFeel(UIManager.getInstalledLookAndFeels()[1 ]);
SwingUtilities.updateComponentTreeUI(chooser);
if (isShowing(chooser.getPreviewPanel())) {
throw new RuntimeException("custom preview panel is showing" );
}
} finally {
frame.dispose();
}
}
private static void setLookAndFeel(final UIManager.LookAndFeelInfo laf) {
try {
UIManager.setLookAndFeel(laf.getClassName());
} catch (final UnsupportedLookAndFeelException ignored){
} catch (ClassNotFoundException | InstantiationException |
IllegalAccessException e) {
throw new RuntimeException(e);
}
}
}
Messung V0.5 in Prozent C=94 H=93 G=93
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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