1 /*
   2  * Copyright (c) 2011, 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.lwawt.macosx;
  27 
  28 
  29 import java.awt.*;
  30 import java.awt.dnd.*;
  31 import java.awt.event.*;
  32 
  33 import sun.awt.dnd.SunDragSourceContextPeer;
  34 
  35 
  36 class CMouseDragGestureRecognizer extends MouseDragGestureRecognizer {
  37 
  38       // Number of pixels before drag is determined to have started:
  39     private static final int fMotionThreshold = getMotionThreshold();
  40 
  41     // Default is the Aqua-approved value:
  42     private static final int kDefaultMotionThreshold = 3;
  43 
  44     private static int getMotionThreshold() {
  45         try {
  46             return ((Integer)Toolkit.getDefaultToolkit().getDesktopProperty("DnD.gestureMotionThreshold")).intValue();
  47         } catch (Exception e) {
  48             return kDefaultMotionThreshold;
  49         }
  50     }
  51 
  52     protected static final int ButtonMask = InputEvent.BUTTON1_DOWN_MASK |
  53                                             InputEvent.BUTTON2_DOWN_MASK |
  54                                             InputEvent.BUTTON3_DOWN_MASK;
  55 

   1 /*
   2  * Copyright (c) 2011, 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.lwawt.macosx;
  27 
  28 
  29 import java.awt.*;
  30 import java.awt.dnd.*;
  31 import java.awt.event.*;
  32 
  33 import sun.awt.dnd.SunDragSourceContextPeer;
  34 
  35 @SuppressWarnings("serial") // JDK implementation class
  36 class CMouseDragGestureRecognizer extends MouseDragGestureRecognizer {
  37 
  38       // Number of pixels before drag is determined to have started:
  39     private static final int fMotionThreshold = getMotionThreshold();
  40 
  41     // Default is the Aqua-approved value:
  42     private static final int kDefaultMotionThreshold = 3;
  43 
  44     private static int getMotionThreshold() {
  45         try {
  46             return ((Integer)Toolkit.getDefaultToolkit().getDesktopProperty("DnD.gestureMotionThreshold")).intValue();
  47         } catch (Exception e) {
  48             return kDefaultMotionThreshold;
  49         }
  50     }
  51 
  52     protected static final int ButtonMask = InputEvent.BUTTON1_DOWN_MASK |
  53                                             InputEvent.BUTTON2_DOWN_MASK |
  54                                             InputEvent.BUTTON3_DOWN_MASK;
  55