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src/java.desktop/windows/classes/sun/awt/windows/WComponentPeer.java

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   1 /*
   2  * Copyright (c) 1996, 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


 897     // Routines to support deferred window positioning.
 898     public void beginLayout() {
 899         // Skip all painting till endLayout
 900         isLayouting = true;
 901     }
 902 
 903     public void endLayout() {
 904         if(!paintArea.isEmpty() && !paintPending &&
 905             !((Component)target).getIgnoreRepaint()) {
 906             // if not waiting for native painting repaint damaged area
 907             postEvent(new PaintEvent((Component)target, PaintEvent.PAINT,
 908                           new Rectangle()));
 909         }
 910         isLayouting = false;
 911     }
 912 
 913     public native void beginValidate();
 914     public native void endValidate();
 915 
 916     /**
 917      * DEPRECATED
 918      */
 919     public Dimension preferredSize() {
 920         return getPreferredSize();
 921     }
 922 
 923     /**
 924      * register a DropTarget with this native peer
 925      */
 926 
 927     @Override
 928     public synchronized void addDropTarget(DropTarget dt) {
 929         if (nDropTargets == 0) {
 930             nativeDropTargetContext = addNativeDropTarget();
 931         }
 932         nDropTargets++;
 933     }
 934 
 935     /**
 936      * unregister a DropTarget with this native peer
 937      */
 938 
 939     @Override
 940     public synchronized void removeDropTarget(DropTarget dt) {
 941         nDropTargets--;
 942         if (nDropTargets == 0) {
 943             removeNativeDropTarget();


   1 /*
   2  * Copyright (c) 1996, 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


 897     // Routines to support deferred window positioning.
 898     public void beginLayout() {
 899         // Skip all painting till endLayout
 900         isLayouting = true;
 901     }
 902 
 903     public void endLayout() {
 904         if(!paintArea.isEmpty() && !paintPending &&
 905             !((Component)target).getIgnoreRepaint()) {
 906             // if not waiting for native painting repaint damaged area
 907             postEvent(new PaintEvent((Component)target, PaintEvent.PAINT,
 908                           new Rectangle()));
 909         }
 910         isLayouting = false;
 911     }
 912 
 913     public native void beginValidate();
 914     public native void endValidate();
 915 
 916     /**







 917      * register a DropTarget with this native peer
 918      */
 919 
 920     @Override
 921     public synchronized void addDropTarget(DropTarget dt) {
 922         if (nDropTargets == 0) {
 923             nativeDropTargetContext = addNativeDropTarget();
 924         }
 925         nDropTargets++;
 926     }
 927 
 928     /**
 929      * unregister a DropTarget with this native peer
 930      */
 931 
 932     @Override
 933     public synchronized void removeDropTarget(DropTarget dt) {
 934         nDropTargets--;
 935         if (nDropTargets == 0) {
 936             removeNativeDropTarget();


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