SystemTray/src/dorkbox/systemTray/ui/osx/OsxBaseMenuItem.java

80 lines
2.6 KiB
Java

/*
* Copyright 2021 dorkbox, llc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package dorkbox.systemTray.ui.osx;
import java.awt.image.BufferedImage;
import dorkbox.jna.macos.cocoa.NSImage;
import dorkbox.jna.macos.cocoa.NSInteger;
import dorkbox.jna.macos.cocoa.NSMenuItem;
import dorkbox.systemTray.SystemTray;
import dorkbox.systemTray.peer.EntryPeer;
import dorkbox.systemTray.util.SizeAndScalingUtil;
import dorkbox.util.ImageUtil;
abstract
class OsxBaseMenuItem implements EntryPeer {
// these are necessary BECAUSE OSX menus look funky when there are some menu entries WITH icons and some WITHOUT
private static NSImage transparentIcon = null;
/**
* @param menuImageSize this is the largest size of an image used in a JMenuItem, before the size of the JMenuItem is forced to be larger
*/
static NSImage getTransparentIcon(int menuImageSize) {
if (transparentIcon == null) {
NSImage transparentIcon_;
try {
final BufferedImage image = ImageUtil.createImageAsBufferedImage(3, menuImageSize, null);
transparentIcon_ = new NSImage(ImageUtil.toBytes(image));
} catch (Exception e) {
transparentIcon_ = null;
SystemTray.logger.error("Error creating transparent image.", e);
}
transparentIcon = transparentIcon_;
}
return transparentIcon;
}
// the native OSX components
protected final OsxMenu parent;
protected final NSMenuItem _native = new NSMenuItem();
// to prevent GC
@SuppressWarnings("FieldCanBeLocal")
private final NSInteger indentationLevel = new NSInteger(1);
OsxBaseMenuItem(final OsxMenu parent) {
this.parent = parent;
// this is to provide reasonable spacing for the menu item, otherwise it looks weird
_native.setIndentationLevel(indentationLevel);
_native.setImage(getTransparentIcon(SizeAndScalingUtil.TRAY_MENU_SIZE));
parent.addItem(_native);
}
@Override
public
void remove() {
_native.setImage(null);
if (parent != null) {
parent.removeItem(_native);
}
}
}