/
AbstractPopupMenu.java
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/
AbstractPopupMenu.java
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/*
* Copyright (c) 2005-2019 Flamingo Kirill Grouchnikov. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* o Neither the name of Flamingo Kirill Grouchnikov nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.pushingpixels.flamingo.api.common.popup;
import org.pushingpixels.flamingo.api.common.*;
import org.pushingpixels.flamingo.api.common.model.*;
import org.pushingpixels.flamingo.internal.ui.common.popup.ScrollableHost;
import javax.swing.*;
import javax.swing.JPopupMenu.Separator;
import javax.swing.event.*;
import java.awt.*;
import java.util.List;
import java.util.*;
/**
* Popup menu with groups of command buttons. Use the
* {@link CommandMenuContentModel#CommandMenuContentModel(CommandPanelContentModel, List)}
* constructor to place a scrollable command button panel in the top part of the popup menu.
*
* @author Kirill Grouchnikov
*/
public abstract class AbstractPopupMenu extends JPopupPanel implements ScrollableHost {
/**
* Menu components.
*/
private List<Component> menuComponents;
protected AbstractPopupMenu() {
this.menuComponents = new ArrayList<>();
}
void addMenuButton(JCommandMenuButton menuButton) {
menuButton.setHorizontalAlignment(SwingUtilities.LEADING);
this.menuComponents.add(menuButton);
this.fireStateChanged();
}
void addMenuButton(JCommandToggleMenuButton menuButton) {
menuButton.setHorizontalAlignment(SwingUtilities.LEADING);
this.menuComponents.add(menuButton);
this.fireStateChanged();
}
void addMenuSeparator() {
Separator separator = new Separator();
separator.setFocusable(false);
this.menuComponents.add(separator);
this.fireStateChanged();
}
/**
* Adds a menu panel to this menu.
*
* @param menuPanel Menu panel to add.
*/
void addMenuPanel(JPanel menuPanel) {
this.menuComponents.add(menuPanel);
this.fireStateChanged();
}
/**
* Returns an unmodifiable list of all the menu components. Can return
* <code>null</code>.
*
* @return An unmodifiable list of all the menu components
*/
public List<Component> getMenuComponents() {
if (this.menuComponents == null) {
return null;
}
return Collections.unmodifiableList(this.menuComponents);
}
/**
* Adds the specified change listener to track changes to this popup menu.
*
* @param l Change listener to add.
* @see #removeChangeListener(ChangeListener)
*/
public void addChangeListener(ChangeListener l) {
this.listenerList.add(ChangeListener.class, l);
}
/**
* Removes the specified change listener from tracking changes to this popup
* menu.
*
* @param l Change listener to remove.
* @see #addChangeListener(ChangeListener)
*/
public void removeChangeListener(ChangeListener l) {
this.listenerList.remove(ChangeListener.class, l);
}
/**
* Notifies all registered listener that the state of this popup menu has
* changed.
*/
protected void fireStateChanged() {
// Guaranteed to return a non-null array
Object[] listeners = this.listenerList.getListenerList();
// Process the listeners last to first, notifying
// those that are interested in this event
ChangeEvent event = new ChangeEvent(this);
for (int i = listeners.length - 2; i >= 0; i -= 2) {
if (listeners[i] == ChangeListener.class) {
((ChangeListener) listeners[i + 1]).stateChanged(event);
}
}
}
}