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A themeable Look and Feel for java swing
/*
* MIT License
*
* Copyright (c) 2020 Jannis Weis
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
* associated documentation files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge, publish, distribute,
* sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
* NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
package com.github.weisj.darklaf.components.button;
import java.awt.*;
import java.awt.event.ActionListener;
import javax.swing.*;
import javax.swing.plaf.ButtonUI;
import com.github.weisj.darklaf.ui.WidgetPopupHelper;
public class SplitButtonFallbackUI extends ButtonUIDelegate {
private JSplitButton button;
private final ActionListener popupListener = e -> {
boolean split = button.getActionCount() > 1;
if (button.getActionCount() <= 1) {
JPopupMenu actionMenu = button.getActionMenu();
actionMenu.setPreferredSize(null);
Dimension size = actionMenu.getPreferredSize();
Rectangle popupBounds =
WidgetPopupHelper.getPopupBounds(button, size, button.getSize(), split, !split);
if (split) {
actionMenu.setPreferredSize(popupBounds.getSize());
}
actionMenu.show(button, popupBounds.x, popupBounds.y);
}
};
public SplitButtonFallbackUI(final ButtonUI delegate) {
super(delegate);
}
@Override
public void installUI(final JComponent c) {
super.installUI(c);
button = (JSplitButton) c;
button.addActionListener(popupListener);
}
@Override
public void uninstallUI(final JComponent c) {
super.uninstallUI(c);
button.removeActionListener(popupListener);
button = null;
}
}