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 #ifndef CDragSource_h
  27 #define CDragSource_h
  28 
  29 #import <Cocoa/Cocoa.h>
  30 #include <jni.h>
  31 
  32 @interface CDragSource : NSObject {
  33 @private
  34     NSView*        fView;
  35     jobject            fComponent;
  36     jobject            fDragSourceContextPeer;
  37 
  38     jobject            fTransferable;
  39     jobject            fTriggerEvent;
  40     jlong            fTriggerEventTimeStamp;
  41     NSPoint            fDragPos;
  42     jint                fClickCount;
  43     jint                fModifiers;
  44 
  45     NSImage*        fDragImage;
  46     NSPoint            fDragImageOffset;
  47 
  48     jint                fSourceActions;
  49     jlongArray        fFormats;
  50     jobject            fFormatMap;
  51 
  52     jint                     fDragKeyModifiers;
  53     jint                     fDragMouseModifiers;
  54 }
  55 
  56 + (CDragSource *) currentDragSource;
  57 
  58 // Common methods:
  59 - (id)init:(jobject)jdragsourcecontextpeer component:(jobject)jcomponent control:(id)control
  60     transferable:(jobject)jtransferable triggerEvent:(jobject)jtrigger
  61     dragPosX:(jint)dragPosX dragPosY:(jint)dragPosY modifiers:(jint)extModifiers clickCount:(jint)clickCount timeStamp:(jlong)timeStamp
  62     dragImage:(jobject)jnsdragimage dragImageOffsetX:(jint)jdragimageoffsetx dragImageOffsetY:(jint)jdragimageoffsety
  63     sourceActions:(jint)jsourceactions formats:(jlongArray)jformats formatMap:(jobject)jformatmap;
  64 
  65 - (void)removeFromView:(JNIEnv *)env;
  66 
  67 - (void)drag;
  68 
  69 // dnd APIs (see AppKit/NSDragging.h, NSDraggingSource):
  70 - (NSDragOperation)draggingSourceOperationMaskForLocal:(BOOL)flag;
  71 - (void)draggedImage:(NSImage *)image beganAt:(NSPoint)screenPoint;
  72 - (void)draggedImage:(NSImage *)image endedAt:(NSPoint)screenPoint operation:(NSDragOperation)operation;
  73 - (void)draggedImage:(NSImage *)image movedTo:(NSPoint)screenPoint;
  74 - (BOOL)ignoreModifierKeysWhileDragging;
  75 
  76 // Updates from the destination to the source
  77 - (void) postDragEnter;
  78 - (void) postDragExit;
  79 
  80 // Utility
  81 - (NSPoint) mapNSScreenPointToJavaWithOffset:(NSPoint) point;
  82 
  83 @end
  84 
  85 #endif // CDragSource_h