org.eclipse.swt.dnd.DNDListener source code

1 /*******************************************************************************
2  * Copyright (c) 2000, 2007 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  *     IBM Corporation - initial API and implementation
10  * Port to the D programming language:
11  *     Frank Benoit <benoit@tionex.de>
12  *******************************************************************************/
13 module org.eclipse.swt.dnd.DNDListener;
14 
15 import java.lang.all;
16 
17 
18 import org.eclipse.swt.internal.SWTEventListener;
19 import org.eclipse.swt.widgets.Event;
20 import org.eclipse.swt.widgets.TypedListener;
21 import org.eclipse.swt.widgets.Widget;
22 import org.eclipse.swt.dnd.DND;
23 import org.eclipse.swt.dnd.DNDEvent;
24 import org.eclipse.swt.dnd.DragSourceEvent;
25 import org.eclipse.swt.dnd.DragSourceEffect;
26 import org.eclipse.swt.dnd.DragSource;
27 import org.eclipse.swt.dnd.DragSourceListener;
28 import org.eclipse.swt.dnd.DropTargetEvent;
29 import org.eclipse.swt.dnd.DropTargetListener;
30 import org.eclipse.swt.dnd.DropTargetEffect;
31 import org.eclipse.swt.dnd.DropTarget;
32 
33 
34 class DNDListener : TypedListener {
35     Widget dndWidget;
36 /**
37  * DNDListener constructor comment.
38  * @param listener org.eclipse.swt.internal.SWTEventListener
39  */
40 this(SWTEventListener listener) {
41     super(listener);
42 }
43 public override void handleEvent (Event e) {
44     switch (e.type) {
45         case DND.DragStart: {
46             DragSourceEvent event = new DragSourceEvent(cast(DNDEvent)e);
47             DragSourceEffect sourceEffect = (cast(DragSource) dndWidget).getDragSourceEffect();
48             if (sourceEffect !is null) {
49                 sourceEffect.dragStart (event);
50             }
51             (cast(DragSourceListener) eventListener).dragStart (event);
52             event.updateEvent(cast(DNDEvent)e);
53             break;
54         }
55         case DND.DragEnd: {
56             DragSourceEvent event = new DragSourceEvent(cast(DNDEvent)e);
57             DragSourceEffect sourceEffect = (cast(DragSource) dndWidget).getDragSourceEffect();
58             if (sourceEffect !is null) {
59                 sourceEffect.dragFinished (event);
60             }
61             (cast(DragSourceListener) eventListener).dragFinished (event);
62             event.updateEvent(cast(DNDEvent)e);
63             break;
64         }
65         case DND.DragSetData: {
66             DragSourceEvent event = new DragSourceEvent(cast(DNDEvent)e);
67             DragSourceEffect sourceEffect = (cast(DragSource) dndWidget).getDragSourceEffect();
68             if (sourceEffect !is null) {
69                 sourceEffect.dragSetData (event);
70             }
71             (cast(DragSourceListener) eventListener).dragSetData (event);
72             event.updateEvent(cast(DNDEvent)e);
73             break;
74         }
75         case DND.DragEnter: {
76             DropTargetEvent event = new DropTargetEvent(cast(DNDEvent)e);
77             (cast(DropTargetListener) eventListener).dragEnter (event);
78             DropTargetEffect dropEffect = (cast(DropTarget) dndWidget).getDropTargetEffect();
79             if (dropEffect !is null) {
80                 dropEffect.dragEnter (event);
81             }
82             event.updateEvent(cast(DNDEvent)e);
83             break;
84         }
85         case DND.DragLeave: {
86             DropTargetEvent event = new DropTargetEvent(cast(DNDEvent)e);
87             (cast(DropTargetListener) eventListener).dragLeave (event);
88             DropTargetEffect dropEffect = (cast(DropTarget) dndWidget).getDropTargetEffect();
89             if (dropEffect !is null) {
90                 dropEffect.dragLeave (event);
91             }
92             event.updateEvent(cast(DNDEvent)e);
93             break;
94         }
95         case DND.DragOver: {
96             DropTargetEvent event = new DropTargetEvent(cast(DNDEvent)e);
97             (cast(DropTargetListener) eventListener).dragOver (event);
98             DropTargetEffect dropEffect = (cast(DropTarget) dndWidget).getDropTargetEffect();
99             if (dropEffect !is null) {
100                 dropEffect.dragOver (event);
101             }
102             event.updateEvent(cast(DNDEvent)e);
103             break;
104         }
105         case DND.Drop: {
106             DropTargetEvent event = new DropTargetEvent(cast(DNDEvent)e);
107             (cast(DropTargetListener) eventListener).drop (event);
108             DropTargetEffect dropEffect = (cast(DropTarget) dndWidget).getDropTargetEffect();
109             if (dropEffect !is null) {
110                 dropEffect.drop (event);
111             }
112             event.updateEvent(cast(DNDEvent)e);
113             break;
114         }
115         case DND.DropAccept: {
116             DropTargetEvent event = new DropTargetEvent(cast(DNDEvent)e);
117             (cast(DropTargetListener) eventListener).dropAccept (event);
118             DropTargetEffect dropEffect = (cast(DropTarget) dndWidget).getDropTargetEffect();
119             if (dropEffect !is null) {
120                 dropEffect.dropAccept (event);
121             }
122             event.updateEvent(cast(DNDEvent)e);
123             break;
124         }
125         case DND.DragOperationChanged: {
126             DropTargetEvent event = new DropTargetEvent(cast(DNDEvent)e);
127             (cast(DropTargetListener) eventListener).dragOperationChanged (event);
128             DropTargetEffect dropEffect = (cast(DropTarget) dndWidget).getDropTargetEffect();
129             if (dropEffect !is null) {
130                 dropEffect.dragOperationChanged (event);
131             }
132             event.updateEvent(cast(DNDEvent)e);
133             break;
134         }
135         default:
136 
137     }
138 }
139 }