1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package sun.awt.windows; 26 27 import java.awt.AlphaComposite; 28 import java.awt.Graphics2D; 29 import java.awt.Image; 30 import java.awt.Taskbar.Feature; 31 import java.awt.TaskbarPeer; 32 import java.awt.Window; 33 import java.awt.image.BufferedImage; 34 import java.awt.image.DataBufferInt; 35 import sun.awt.AWTAccessor; 36 import sun.awt.OSInfo; 37 38 final public class WTaskbarPeer implements TaskbarPeer { 39 40 private static boolean supported = false; 41 private static boolean initExecuted = false; 42 43 private static synchronized void init() { 44 if (!initExecuted) { 45 supported = OSInfo.getWindowsVersion() 46 .compareTo(OSInfo.WINDOWS_7) >= 0 47 && nativeInit(); 48 } 49 initExecuted = true; 50 } 51 52 static boolean isTaskbarSupported() { 53 init(); 54 return supported; 55 } 56 57 WTaskbarPeer() { 58 init(); 59 } 60 61 @Override 62 public boolean isSupported(Feature feature) { 63 switch(feature) { 64 case ICON_BADGE_IMAGE_WINDOW: 65 case PROGRESS_STATE_WINDOW: 66 case PROGRESS_VALUE_WINDOW: 67 return supported; 68 case USER_ATTENTION_WINDOW: 69 return true; 70 default: 71 return false; 72 } 73 } 74 75 private static int[] imageToArray(Image image) { 76 if (image == null) { 77 return null; 78 } 79 80 int w = image.getWidth(null); 81 int h = image.getHeight(null); 82 83 if (w < 0 || h < 0) { 84 return null; 85 } 86 87 BufferedImage bimg = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB_PRE); 88 Graphics2D g2 = bimg.createGraphics(); 89 g2.setComposite(AlphaComposite.Src); 90 g2.drawImage(image, 0, 0, null); 91 g2.dispose(); 92 93 return ((DataBufferInt) bimg.getRaster().getDataBuffer()).getData(); 94 } 95 96 @Override 97 public void setWindowIconBadge(Window window, final Image image) { 98 WWindowPeer wp = AWTAccessor.getComponentAccessor().getPeer(window); 99 if (wp != null) { 100 int w = 0; 101 int h = 0; 102 int[] buffer = imageToArray(image); 103 if (buffer != null) { 104 w = image.getWidth(null); 105 h = image.getHeight(null); 106 } 107 setOverlayIcon(wp.getHWnd(), buffer, w, h); 108 } 109 } 110 111 @Override 112 public void requestWindowUserAttention(Window window) { 113 WWindowPeer wp = AWTAccessor.getComponentAccessor().getPeer(window); 114 if (wp != null) { 115 flashWindow(wp.getHWnd()); 116 } 117 } 118 119 @Override 120 public void setWindowProgressValue(Window window, int value) { 121 WWindowPeer wp = AWTAccessor.getComponentAccessor().getPeer(window); 122 if (wp != null) { 123 setProgressValue(wp.getHWnd(), value); 124 } 125 } 126 127 @Override 128 public void setWindowProgressState(Window window, int state) { 129 WWindowPeer wp = AWTAccessor.getComponentAccessor().getPeer(window); 130 if (wp != null) { 131 setProgressState(wp.getHWnd(), state); 132 } 133 } 134 135 private static native boolean nativeInit(); 136 137 private native void setProgressValue(long hwnd, int value); 138 139 private native void setProgressState(long hwnd, int state); 140 141 private native void setOverlayIcon(long hwnd, int[] badge, int width, int height); 142 143 private native void flashWindow(long hWnd); 144 145 }