src/windows/classes/sun/awt/windows/WGlobalCursorManager.java

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  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.windows;
  27 
  28 import java.awt.*;
  29 import sun.awt.GlobalCursorManager;


  30 
  31 public final class WGlobalCursorManager extends GlobalCursorManager {
  32     private static WGlobalCursorManager manager;
  33 
  34     public static GlobalCursorManager getCursorManager() {
  35         if (manager == null) {
  36             manager = new WGlobalCursorManager();
  37         }
  38         return manager;
  39     }
  40 
  41     /**
  42      * Should be called in response to a native mouse enter or native mouse
  43      * button released message. Should not be called during a mouse drag.
  44      */
  45     public static void nativeUpdateCursor(Component heavy) {
  46         WGlobalCursorManager.getCursorManager().updateCursorLater(heavy);
  47     }
  48 
  49     protected native void setCursor(Component comp, Cursor cursor, boolean u);










  50     protected native void getCursorPos(Point p);
  51     protected native Component findComponentAt(Container con, int x, int y);
  52     /*
  53      * two native methods to call corresponding methods in Container and
  54      * Component
  55      */
  56     protected native Component findHeavyweightUnderCursor(boolean useCache);
  57     protected native Point getLocationOnScreen(Component com);
  58 }


  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.windows;
  27 
  28 import java.awt.*;
  29 import sun.awt.GlobalCursorManager;
  30 import sun.awt.LightweightFrame;
  31 import sun.swing.JLightweightFrame;
  32 
  33 public final class WGlobalCursorManager extends GlobalCursorManager {
  34     private static WGlobalCursorManager manager;
  35 
  36     public static GlobalCursorManager getCursorManager() {
  37         if (manager == null) {
  38             manager = new WGlobalCursorManager();
  39         }
  40         return manager;
  41     }
  42 
  43     /**
  44      * Should be called in response to a native mouse enter or native mouse
  45      * button released message. Should not be called during a mouse drag.
  46      */
  47     public static void nativeUpdateCursor(Component heavy) {
  48         WGlobalCursorManager.getCursorManager().updateCursorLater(heavy);
  49     }
  50 
  51     protected void setCursor(final Component comp, final Cursor cursor, final boolean u) {
  52         JLightweightFrame lwFrameUnderCursor = (JLightweightFrame)WLightweightFramePeer.getFrameUnderCursor();
  53         if (lwFrameUnderCursor != null) {
  54             lwFrameUnderCursor.invokeOnContentsThread(() -> setCursorDirect(comp, cursor, u));
  55         } else {
  56             setCursorImpl(comp, cursor, u);
  57         }
  58     }
  59 
  60     protected native void setCursorImpl(Component comp, Cursor cursor, boolean u);
  61     protected native void setCursorDirect(Component component, Cursor cursor, boolean u);
  62     protected native void getCursorPos(Point p);
  63     protected native Component findComponentAt(Container con, int x, int y);
  64     /*
  65      * two native methods to call corresponding methods in Container and
  66      * Component
  67      */
  68     protected native Component findHeavyweightUnderCursor(boolean useCache);
  69     protected native Point getLocationOnScreen(Component com);
  70 }