1 /* 2 * Copyright (c) 2018, 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 26 package jdk.swing.interop; 27 28 import java.awt.Graphics; 29 import java.awt.Component; 30 import java.awt.Container; 31 import java.awt.Toolkit; 32 import java.awt.Window; 33 import java.awt.AWTEvent; 34 import java.awt.EventQueue; 35 import java.awt.image.BufferedImage; 36 import sun.awt.SunToolkit; 37 import sun.awt.AppContext; 38 import sun.awt.AWTAccessor; 39 import sun.awt.UngrabEvent; 40 import sun.awt.image.IntegerComponentRaster; 41 import sun.java2d.SunGraphics2D; 42 import sun.java2d.SurfaceData; 43 44 /** 45 * This class provides static utility methods to be used by FX swing interop 46 * to access and use jdk internal classes like SunToolkit, AppContext, AWTAccessor, 47 * UngrabEvent, IntegerComponentRaster, SunGraphics2D and SurfaceData. 48 */ 49 public class SwingInterOpUtils { 50 public static double getDefaultScaleX(Graphics g) { 51 if (g instanceof SunGraphics2D) { 52 SurfaceData sd = ((SunGraphics2D) g).surfaceData; 53 return sd.getDefaultScaleX(); 54 } 55 return 1.0; 56 } 57 58 public static double getDefaultScaleY(Graphics g) { 59 if (g instanceof SunGraphics2D) { 60 SurfaceData sd = ((SunGraphics2D) g).surfaceData; 61 return sd.getDefaultScaleY(); 62 } 63 return 1.0; 64 } 65 66 public static int[] getData(BufferedImage bimg) { 67 IntegerComponentRaster icr = 68 (IntegerComponentRaster) bimg.getRaster(); 69 int data[] = icr.getDataStorage(); 70 return data; 71 } 72 73 public static int getOffset(BufferedImage bimg) { 74 IntegerComponentRaster icr = 75 (IntegerComponentRaster) bimg.getRaster(); 76 int offset = icr.getDataOffset(0); 77 return offset; 78 } 79 80 public static int getScanlineStride(BufferedImage bimg) { 81 IntegerComponentRaster icr = 82 (IntegerComponentRaster) bimg.getRaster(); 83 int scan = icr.getScanlineStride(); 84 return scan; 85 } 86 87 public static void postEvent(Object target, java.awt.AWTEvent e) { 88 AppContext context = SunToolkit.targetToAppContext(target); 89 if (context != null) { 90 SunToolkit.postEvent(context, e); 91 } 92 } 93 94 public static void grab(Toolkit toolkit, Window window) { 95 if (toolkit instanceof SunToolkit) { 96 ((SunToolkit)toolkit).grab(window); 97 } 98 } 99 100 public static void ungrab(Toolkit toolkit, Window window) { 101 if (toolkit instanceof SunToolkit) { 102 ((SunToolkit)toolkit).ungrab(window); 103 } 104 } 105 106 public static boolean isUngrabEvent(AWTEvent e) { 107 return e instanceof UngrabEvent; 108 } 109 110 public static final int GRAB_EVENT_MASK = SunToolkit.GRAB_EVENT_MASK; 111 112 }