7072653: JComboBox popup mispositioned if its height exceeds the screen height
Reviewed-by: alexsch, azvegint
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*/
/* @test
@bug 7072653
@summary JComboBox popup mispositioned if its height exceeds the screen height
@author Semyon Sadetsky
*/
import javax.swing.*;
import javax.swing.event.PopupMenuEvent;
import javax.swing.event.PopupMenuListener;
import java.awt.*;
import java.awt.Toolkit;
public class bug7072653 {
private static JComboBox combobox;
private static JFrame frame;
public static void main(String[] args) throws Exception {
try {
SwingUtilities.invokeAndWait(new Runnable() {
@Override
public void run() {
frame = new JFrame("JComboBox Test");
setup(frame);
}
});
test();
}
finally {
frame.dispose();
}
}
static void setup(JFrame frame) {
frame.setUndecorated(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(320, 200);
frame.getContentPane().setLayout(new FlowLayout());
combobox = new JComboBox(new DefaultComboBoxModel() {
public Object getElementAt(int index) { return "Element " + index; }
public int getSize() {
return 1000;
}
});
combobox.setMaximumRowCount(100);
frame.getContentPane().add(combobox);
frame.setVisible(true);
}
static void test() throws Exception{
SwingUtilities.invokeAndWait(new Runnable() {
@Override
public void run() {
combobox.addPopupMenuListener(new PopupMenuListener() {
@Override
public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
}
@Override
public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {
int height = 0;
for (Window window : JFrame.getWindows()) {
if (Window.Type.POPUP == window.getType()) {
height = window.getSize().height;
break;
}
}
GraphicsConfiguration gc =
combobox.getGraphicsConfiguration();
Insets screenInsets = Toolkit.getDefaultToolkit()
.getScreenInsets(gc);
if (height == gc.getBounds().height - screenInsets.top -
screenInsets.bottom ) {
System.out.println("ok");
return;
}
throw new RuntimeException(
"Popup window height is wrong " + height);
}
@Override
public void popupMenuCanceled(PopupMenuEvent e) {
}
});
combobox.setPopupVisible(true);
combobox.setPopupVisible(false);
}
});
}
}