dorkbox.systemTray.util.SizeAndScalingUtil Maven / Gradle / Ivy
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Cross-platform SystemTray support for Swing/AWT, GtkStatusIcon, and AppIndicator on Java 8+
/*
* 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.util;
import static com.sun.jna.platform.win32.WinUser.SM_CYMENUCHECK;
import static com.sun.jna.platform.win32.WinUser.SM_CYSMICON;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.util.concurrent.atomic.AtomicInteger;
import javax.swing.JMenuItem;
import com.sun.jna.platform.win32.WinDef.POINT;
import com.sun.jna.platform.win32.WinUser;
import com.sun.jna.ptr.IntByReference;
import dorkbox.jna.linux.GtkTheme;
import dorkbox.jna.windows.ShCore;
import dorkbox.jna.windows.User32;
import dorkbox.os.OS;
import dorkbox.systemTray.SystemTray;
import dorkbox.systemTray.Tray;
import dorkbox.systemTray.ui.swing._SwingTray;
import dorkbox.systemTray.ui.swing._WindowsNativeTray;
import dorkbox.util.SwingUtil;
public
class SizeAndScalingUtil {
// the tray size as best as possible for the current OS
public static int TRAY_SIZE = 0;
public static int TRAY_MENU_SIZE = 0;
public static
int getMacOSScaleFactor() {
// apple will ALWAYS return 2.0 on (apple) retina displays. This is enforced by apple
GraphicsDevice graphicsDevice = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
GraphicsConfiguration graphicsConfig = graphicsDevice.getDefaultConfiguration();
return (int) graphicsConfig.getDefaultTransform().getScaleX();
}
public static
double getWindowsDpiScaleForMouseClick(int mousePositionX, int mousePositionY) {
POINT.ByValue pointValue = new POINT.ByValue(mousePositionX, mousePositionY);
WinUser.HMONITOR monitorFromPoint = User32.User32.MonitorFromPoint(pointValue, WinUser.MONITOR_DEFAULTTONEAREST);
// I don't know why this has 2 options, but the scale is always the same in both directions...
IntByReference xScalePtr = new IntByReference();
IntByReference yScalePtr = new IntByReference();
ShCore.GetDpiForMonitor(monitorFromPoint, 0, xScalePtr, yScalePtr);
// 96 is the default scale on windows
return 96.0D / xScalePtr.getValue();
}
public static
int getTrayImageSize() {
if (TRAY_SIZE == 0) {
if (OS.isLinux()) {
TRAY_SIZE = GtkTheme.getIndicatorSize();
}
else if (OS.isMacOsX()) {
// The base (non-scaled) height is 22px tall, measured via a screen-shot. From what I can tell, they are Apple defined, and cannot be changed.
// we obviously do not want to be the exact same size, so we give 2px padding on each side.
TRAY_SIZE = SizeAndScalingUtil.getMacOSScaleFactor() * 18;
}
else if (OS.isWindows()) {
TRAY_SIZE = User32.User32.GetSystemMetrics(SM_CYSMICON);
} else {
// reasonable default
TRAY_SIZE = 32;
}
}
if (TRAY_SIZE == 0) {
// reasonable default
TRAY_SIZE = 32;
}
return TRAY_SIZE;
}
public static
int getMenuImageSize(final Class trayType) {
if (TRAY_MENU_SIZE == 0) {
if (OS.isMacOsX()) {
// Note: Mac (AWT) does not have images in the menu.
// The base (non-scaled) height is 22px tall, measured via a screen-shot. From what I can tell, they are Apple defined, and cannot be changed.
// we obviously do not want to be the exact same size, so we give 2px padding on each side.
TRAY_MENU_SIZE = SizeAndScalingUtil.getMacOSScaleFactor() * 18;
}
else if ((trayType == _SwingTray.class) || (trayType == _WindowsNativeTray.class)) {
// Java does not scale the menu item IMAGE **AT ALL**, we must provide the correct size to begin with
if (OS.isWindows()) {
// http://kynosarges.org/WindowsDpi.html
// image-size/menu-height
// 96 DPI = 100% actual size: 14/17
// 144 DPI = 150% actual size: 24/29
// gets the height of the default checkmark size, adjusted
// This is the closest image size we can get to the actual size programmatically. This is a LOT closer that checking the
// largest size a JMenu image can be before the menu size changes.
TRAY_MENU_SIZE = User32.User32.GetSystemMetrics(SM_CYMENUCHECK) - 1;
// image-size/menu-height
// 96 DPI = 100% mark size: 14/20
// 144 DPI = 150% mark size: 24/30
} else {
final AtomicInteger iconSize = new AtomicInteger();
SwingUtil.invokeAndWaitQuietly(()->{
JMenuItem jMenuItem = new JMenuItem();
// do the same modifications that would also happen (if specified) for the actual displayed menu items
if (SystemTray.SWING_UI != null) {
jMenuItem.setUI(SystemTray.SWING_UI.getItemUI(jMenuItem, null));
}
// this is the largest size of an image used in a JMenuItem, before the size of the JMenuItem is forced to be larger
int height = SwingUtil.getLargestIconHeightForButton(jMenuItem);
iconSize.set(height);
});
TRAY_MENU_SIZE = iconSize.get();
}
}
else if (OS.isLinux()) {
// AppIndicator or GtkStatusIcon
TRAY_MENU_SIZE = GtkTheme.getMenuEntryImageSize();
} else {
// reasonable default
TRAY_MENU_SIZE = 16;
}
}
return TRAY_MENU_SIZE;
}
}