src/share/classes/sun/awt/CustomCursor.java

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   1 /*
   2  * Copyright (c) 1997, 1999, 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 sun.awt;
  27 
  28 import java.awt.*;
  29 import java.awt.image.*;
  30 
  31 /**
  32  * A class to encapsulate a custom image-based cursor.
  33  *
  34  * @author      ThomasBall
  35  */

  36 public abstract class CustomCursor extends Cursor {
  37 
  38     protected Image image;
  39 
  40     public CustomCursor(Image cursor, Point hotSpot, String name)
  41             throws IndexOutOfBoundsException {
  42         super(name);
  43         image = cursor;
  44         Toolkit toolkit = Toolkit.getDefaultToolkit();
  45 
  46         // Make sure image is fully loaded.
  47         Component c = new Canvas(); // for its imageUpdate method
  48         MediaTracker tracker = new MediaTracker(c);
  49         tracker.addImage(cursor, 0);
  50         try {
  51             tracker.waitForAll();
  52         } catch (InterruptedException e) {
  53         }
  54         int width = cursor.getWidth(c);
  55         int height = cursor.getHeight(c);


   1 /*
   2  * Copyright (c) 1997, 2014, 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 sun.awt;
  27 
  28 import java.awt.*;
  29 import java.awt.image.*;
  30 
  31 /**
  32  * A class to encapsulate a custom image-based cursor.
  33  *
  34  * @author      ThomasBall
  35  */
  36 @SuppressWarnings("serial") // JDK-implementation class
  37 public abstract class CustomCursor extends Cursor {
  38 
  39     protected Image image;
  40 
  41     public CustomCursor(Image cursor, Point hotSpot, String name)
  42             throws IndexOutOfBoundsException {
  43         super(name);
  44         image = cursor;
  45         Toolkit toolkit = Toolkit.getDefaultToolkit();
  46 
  47         // Make sure image is fully loaded.
  48         Component c = new Canvas(); // for its imageUpdate method
  49         MediaTracker tracker = new MediaTracker(c);
  50         tracker.addImage(cursor, 0);
  51         try {
  52             tracker.waitForAll();
  53         } catch (InterruptedException e) {
  54         }
  55         int width = cursor.getWidth(c);
  56         int height = cursor.getHeight(c);