1 /*
   2  * Copyright (c) 2011, 2016, 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 javafx.embed.swing;
  27 
  28 import java.awt.Cursor;
  29 import java.awt.Dimension;
  30 import java.awt.Point;
  31 import java.awt.Toolkit;
  32 import java.awt.image.BufferedImage;
  33 
  34 import com.sun.javafx.cursor.CursorFrame;
  35 import com.sun.javafx.cursor.ImageCursorFrame;
  36 
  37 /**
  38  * An utility class to translate cursor types between embedded
  39  * application and Swing.
  40  *
  41  */
  42 class SwingCursors {
  43 
  44     private static Cursor createCustomCursor(ImageCursorFrame cursorFrame) {
  45         Toolkit awtToolkit = Toolkit.getDefaultToolkit();
  46 
  47         double imageWidth = cursorFrame.getWidth();
  48         double imageHeight = cursorFrame.getHeight();
  49         Dimension nativeSize = awtToolkit.getBestCursorSize((int)imageWidth, (int)imageHeight);
  50 
  51         double scaledHotspotX = cursorFrame.getHotspotX() * nativeSize.getWidth() / imageWidth;
  52         double scaledHotspotY = cursorFrame.getHotspotY() * nativeSize.getHeight() / imageHeight;
  53         Point hotspot = new Point((int)scaledHotspotX, (int)scaledHotspotY);
  54 
  55         BufferedImage awtImage = SwingFXUtils.fromFXImage(
  56                 com.sun.javafx.tk.Toolkit.getImageAccessor().fromPlatformImage(cursorFrame.getPlatformImage()), null);
  57         return awtToolkit.createCustomCursor(awtImage, hotspot, null);
  58     }
  59 
  60     static Cursor embedCursorToCursor(CursorFrame cursorFrame) {
  61         switch (cursorFrame.getCursorType()) {
  62             case DEFAULT:
  63                 return Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
  64             case CROSSHAIR:
  65                 return Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR);
  66             case TEXT:
  67                 return Cursor.getPredefinedCursor(Cursor.TEXT_CURSOR);
  68             case WAIT:
  69                 return Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR);
  70             case SW_RESIZE:
  71                 return Cursor.getPredefinedCursor(Cursor.SW_RESIZE_CURSOR);
  72             case SE_RESIZE:
  73                 return Cursor.getPredefinedCursor(Cursor.SE_RESIZE_CURSOR);
  74             case NW_RESIZE:
  75                 return Cursor.getPredefinedCursor(Cursor.NW_RESIZE_CURSOR);
  76             case NE_RESIZE:
  77                 return Cursor.getPredefinedCursor(Cursor.NE_RESIZE_CURSOR);
  78             case N_RESIZE:
  79             case V_RESIZE:
  80                 return Cursor.getPredefinedCursor(Cursor.N_RESIZE_CURSOR);
  81             case S_RESIZE:
  82                 return Cursor.getPredefinedCursor(Cursor.S_RESIZE_CURSOR);
  83             case W_RESIZE:
  84             case H_RESIZE:
  85                 return Cursor.getPredefinedCursor(Cursor.W_RESIZE_CURSOR);
  86             case E_RESIZE:
  87                 return Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR);
  88             case OPEN_HAND:
  89             case CLOSED_HAND:
  90             case HAND:
  91                 return Cursor.getPredefinedCursor(Cursor.HAND_CURSOR);
  92             case MOVE:
  93                 return Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR);
  94             // Not implemented, use default cursor instead
  95             case DISAPPEAR:
  96                 return Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
  97             case NONE:
  98                 return null;
  99             case IMAGE:
 100                 return createCustomCursor((ImageCursorFrame) cursorFrame);
 101        }
 102 
 103        return Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
 104     }
 105 
 106     static javafx.scene.Cursor embedCursorToCursor(Cursor cursor) {
 107         if (cursor == null) {
 108             return javafx.scene.Cursor.DEFAULT;
 109         }
 110 
 111         switch (cursor.getType()) {
 112             case Cursor.DEFAULT_CURSOR:
 113                 return javafx.scene.Cursor.DEFAULT;
 114             case Cursor.CROSSHAIR_CURSOR:
 115                 return javafx.scene.Cursor.CROSSHAIR;
 116             case Cursor.E_RESIZE_CURSOR:
 117                 return javafx.scene.Cursor.E_RESIZE;
 118             case Cursor.HAND_CURSOR:
 119                 return javafx.scene.Cursor.HAND;
 120             case Cursor.MOVE_CURSOR:
 121                 return javafx.scene.Cursor.MOVE;
 122             case Cursor.N_RESIZE_CURSOR:
 123                 return javafx.scene.Cursor.N_RESIZE;
 124             case Cursor.NE_RESIZE_CURSOR:
 125                 return javafx.scene.Cursor.NE_RESIZE;
 126             case Cursor.NW_RESIZE_CURSOR:
 127                 return javafx.scene.Cursor.NW_RESIZE;
 128             case Cursor.S_RESIZE_CURSOR:
 129                 return javafx.scene.Cursor.S_RESIZE;
 130             case Cursor.SE_RESIZE_CURSOR:
 131                 return javafx.scene.Cursor.SE_RESIZE;
 132             case Cursor.SW_RESIZE_CURSOR:
 133                 return javafx.scene.Cursor.SW_RESIZE;
 134             case Cursor.TEXT_CURSOR:
 135                 return javafx.scene.Cursor.TEXT;
 136             case Cursor.W_RESIZE_CURSOR:
 137                 return javafx.scene.Cursor.W_RESIZE;
 138             case Cursor.WAIT_CURSOR:
 139                 return javafx.scene.Cursor.WAIT;
 140             default:
 141                 return javafx.scene.Cursor.DEFAULT;
 142         }
 143     }
 144 }