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Ported dwt.dnd.DND
author Jacob Carlborg <doob@me.com>
date Tue, 30 Dec 2008 19:08:20 +0100
parents d8635bb48c7c
children 63a09873578e
comparison
equal deleted inserted replaced
91:a7e41c09df9e 92:370410b7852f
5 * which accompanies this distribution, and is available at 5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html 6 * http://www.eclipse.org/legal/epl-v10.html
7 * 7 *
8 * Contributors: 8 * Contributors:
9 * IBM Corporation - initial API and implementation 9 * IBM Corporation - initial API and implementation
10 *
11 * Port to the D programming language:
12 * Jacob Carlborg <doob@me.com>
10 *******************************************************************************/ 13 *******************************************************************************/
11 module dwt.dnd.DND; 14 module dwt.dnd.DND;
12 15
13 import dwt.dwthelper.utils; 16 import dwt.dwthelper.utils;
14 17
32 * 35 *
33 * @see Clipboard 36 * @see Clipboard
34 * 37 *
35 * @since 3.1 38 * @since 3.1
36 */ 39 */
37 public final static int CLIPBOARD = 1 << 0; 40 public const static int CLIPBOARD = 1 << 0;
38 41
39 /** 42 /**
40 * The transfer mechanism for clients that use the selection 43 * The transfer mechanism for clients that use the selection
41 * mechanism (value is 2). 44 * mechanism (value is 2).
42 * 45 *
43 * @see Clipboard 46 * @see Clipboard
44 * 47 *
45 * @since 3.1 48 * @since 3.1
46 */ 49 */
47 public final static int SELECTION_CLIPBOARD = 1 << 1; 50 public const static int SELECTION_CLIPBOARD = 1 << 1;
48 51
49 /** 52 /**
50 * Drag and Drop Operation: no drag/drop operation performed 53 * Drag and Drop Operation: no drag/drop operation performed
51 * (value is 0). 54 * (value is 0).
52 */ 55 */
53 public final static int DROP_NONE = 0; 56 public const static int DROP_NONE = 0;
54 57
55 /** 58 /**
56 * Drag and Drop Operation: a copy of the data in the drag source is 59 * Drag and Drop Operation: a copy of the data in the drag source is
57 * added to the drop target (value is 1 &lt;&lt; 0). 60 * added to the drop target (value is 1 &lt;&lt; 0).
58 */ 61 */
59 public final static int DROP_COPY = 1 << 0; 62 public const static int DROP_COPY = 1 << 0;
60 63
61 /** 64 /**
62 * Drag and Drop Operation: a copy of the data is added to the drop target and 65 * Drag and Drop Operation: a copy of the data is added to the drop target and
63 * the original data is removed from the drag source (value is 1 &lt;&lt; 1). 66 * the original data is removed from the drag source (value is 1 &lt;&lt; 1).
64 */ 67 */
65 public final static int DROP_MOVE = 1 << 1; 68 public const static int DROP_MOVE = 1 << 1;
66 69
67 /** 70 /**
68 * Drag and Drop Operation: the drop target makes a link to the data in 71 * Drag and Drop Operation: the drop target makes a link to the data in
69 * the drag source (value is 1 &lt;&lt; 2). 72 * the drag source (value is 1 &lt;&lt; 2).
70 */ 73 */
71 public final static int DROP_LINK = 1 << 2; 74 public const static int DROP_LINK = 1 << 2;
72 75
73 /** 76 /**
74 * Drag and Drop Operation: the drop target moves the data and the drag source removes 77 * Drag and Drop Operation: the drop target moves the data and the drag source removes
75 * any references to the data and updates its display. This is not available on all platforms 78 * any references to the data and updates its display. This is not available on all platforms
76 * and is only used when a non-DWT application is the drop target. In this case, the DWT 79 * and is only used when a non-DWT application is the drop target. In this case, the DWT
77 * drag source is informed in the dragFinished event that the drop target has moved the data. 80 * drag source is informed in the dragFinished event that the drop target has moved the data.
78 * (value is 1 &lt;&lt; 3). 81 * (value is 1 &lt;&lt; 3).
79 * 82 *
80 * @see DragSourceListener#dragFinished 83 * @see DragSourceListener#dragFinished
81 */ 84 */
82 public final static int DROP_TARGET_MOVE = 1 << 3; 85 public const static int DROP_TARGET_MOVE = 1 << 3;
83 86
84 /** 87 /**
85 * Drag and Drop Operation: During a dragEnter event or a dragOperationChanged, if no modifier keys 88 * Drag and Drop Operation: During a dragEnter event or a dragOperationChanged, if no modifier keys
86 * are pressed, the operation is set to DROP_DEFAULT. The application can choose what the default 89 * are pressed, the operation is set to DROP_DEFAULT. The application can choose what the default
87 * operation should be by setting a new value in the operation field. If no value is choosen, the 90 * operation should be by setting a new value in the operation field. If no value is choosen, the
89 * 92 *
90 * @see DropTargetListener#dragEnter 93 * @see DropTargetListener#dragEnter
91 * @see DropTargetListener#dragOperationChanged 94 * @see DropTargetListener#dragOperationChanged
92 * @since 2.0 95 * @since 2.0
93 */ 96 */
94 public final static int DROP_DEFAULT = 1 << 4; 97 public const static int DROP_DEFAULT = 1 << 4;
95 98
96 /** 99 /**
97 * DragSource Event: the drop has successfully completed or has been terminated (such as hitting 100 * DragSource Event: the drop has successfully completed or has been terminated (such as hitting
98 * the ESC key); perform cleanup such as removing data on a move operation (value is 2000). 101 * the ESC key); perform cleanup such as removing data on a move operation (value is 2000).
99 */ 102 */
100 public static final int DragEnd = 2000; 103 public static const int DragEnd = 2000;
101 104
102 /** 105 /**
103 * DragSource Event: the data to be dropped is required from the drag source (value is 2001). 106 * DragSource Event: the data to be dropped is required from the drag source (value is 2001).
104 */ 107 */
105 public static final int DragSetData = 2001; 108 public static const int DragSetData = 2001;
106 109
107 /** 110 /**
108 * DropTarget Event: the cursor has entered the drop target boundaries (value is 2002). 111 * DropTarget Event: the cursor has entered the drop target boundaries (value is 2002).
109 */ 112 */
110 public static final int DragEnter = 2002; 113 public static const int DragEnter = 2002;
111 114
112 /** 115 /**
113 * DropTarget Event: the cursor has left the drop target boundaries OR the drop 116 * DropTarget Event: the cursor has left the drop target boundaries OR the drop
114 * operation has been cancelled (such as by hitting ECS) OR the drop is about to 117 * operation has been cancelled (such as by hitting ECS) OR the drop is about to
115 * happen (user has released the mouse button over this target) (value is 2003). 118 * happen (user has released the mouse button over this target) (value is 2003).
116 */ 119 */
117 public static final int DragLeave = 2003; 120 public static const int DragLeave = 2003;
118 121
119 /** 122 /**
120 * DropTarget Event: the cursor is over the drop target (value is 2004). 123 * DropTarget Event: the cursor is over the drop target (value is 2004).
121 */ 124 */
122 public static final int DragOver = 2004; 125 public static const int DragOver = 2004;
123 126
124 /** 127 /**
125 * DropTarget Event: the operation being performed has changed usually due to the user 128 * DropTarget Event: the operation being performed has changed usually due to the user
126 * changing the selected modifier keys while dragging (value is 2005). 129 * changing the selected modifier keys while dragging (value is 2005).
127 */ 130 */
128 public static final int DragOperationChanged = 2005; 131 public static const int DragOperationChanged = 2005;
129 132
130 /** 133 /**
131 * DropTarget Event: the data has been dropped (value is 2006). 134 * DropTarget Event: the data has been dropped (value is 2006).
132 */ 135 */
133 public static final int Drop = 2006; 136 public static const int Drop = 2006;
134 137
135 /** 138 /**
136 * DropTarget Event: the drop target is given a last chance to modify the drop (value is 2007). 139 * DropTarget Event: the drop target is given a last chance to modify the drop (value is 2007).
137 */ 140 */
138 public static final int DropAccept = 2007; 141 public static const int DropAccept = 2007;
139 142
140 /** 143 /**
141 * DragSource Event: a drag is about to begin (value is 2008). 144 * DragSource Event: a drag is about to begin (value is 2008).
142 */ 145 */
143 public static final int DragStart = 2008; 146 public static const int DragStart = 2008;
144 147
145 /** 148 /**
146 * DropTarget drag under effect: No effect is shown (value is 0). 149 * DropTarget drag under effect: No effect is shown (value is 0).
147 */ 150 */
148 public static final int FEEDBACK_NONE = 0; 151 public static const int FEEDBACK_NONE = 0;
149 152
150 /** 153 /**
151 * DropTarget drag under effect: The item under the cursor is selected; applies to tables 154 * DropTarget drag under effect: The item under the cursor is selected; applies to tables
152 * and trees (value is 1). 155 * and trees (value is 1).
153 */ 156 */
154 public static final int FEEDBACK_SELECT = 1; 157 public static const int FEEDBACK_SELECT = 1;
155 158
156 /** 159 /**
157 * DropTarget drag under effect: An insertion mark is shown before the item under the cursor; applies to 160 * DropTarget drag under effect: An insertion mark is shown before the item under the cursor; applies to
158 * trees (value is 2). 161 * trees (value is 2).
159 */ 162 */
160 public static final int FEEDBACK_INSERT_BEFORE = 2; 163 public static const int FEEDBACK_INSERT_BEFORE = 2;
161 164
162 /** 165 /**
163 * DropTarget drag under effect:An insertion mark is shown after the item under the cursor; applies to 166 * DropTarget drag under effect:An insertion mark is shown after the item under the cursor; applies to
164 * trees (value is 4). 167 * trees (value is 4).
165 */ 168 */
166 public static final int FEEDBACK_INSERT_AFTER = 4; 169 public static const int FEEDBACK_INSERT_AFTER = 4;
167 170
168 /** 171 /**
169 * DropTarget drag under effect: The widget is scrolled up or down to allow the user to drop on items that 172 * DropTarget drag under effect: The widget is scrolled up or down to allow the user to drop on items that
170 * are not currently visible; applies to tables and trees (value is 8). 173 * are not currently visible; applies to tables and trees (value is 8).
171 */ 174 */
172 public static final int FEEDBACK_SCROLL = 8; 175 public static const int FEEDBACK_SCROLL = 8;
173 176
174 /** 177 /**
175 * DropTarget drag under effect: The item currently under the cursor is expanded to allow the user to 178 * DropTarget drag under effect: The item currently under the cursor is expanded to allow the user to
176 * select a drop target from a sub item; applies to trees (value is 16). 179 * select a drop target from a sub item; applies to trees (value is 16).
177 */ 180 */
178 public static final int FEEDBACK_EXPAND = 16; 181 public static const int FEEDBACK_EXPAND = 16;
179 182
180 /** 183 /**
181 * Error code: drag source can not be initialized (value is 2000). 184 * Error code: drag source can not be initialized (value is 2000).
182 */ 185 */
183 public static final int ERROR_CANNOT_INIT_DRAG = 2000; 186 public static const int ERROR_CANNOT_INIT_DRAG = 2000;
184 187
185 /** 188 /**
186 * Error code: drop target cannot be initialized (value is 2001). 189 * Error code: drop target cannot be initialized (value is 2001).
187 */ 190 */
188 public static final int ERROR_CANNOT_INIT_DROP = 2001; 191 public static const int ERROR_CANNOT_INIT_DROP = 2001;
189 192
190 /** 193 /**
191 * Error code: Data can not be set on system clipboard (value is 2002). 194 * Error code: Data can not be set on system clipboard (value is 2002).
192 */ 195 */
193 public static final int ERROR_CANNOT_SET_CLIPBOARD = 2002; 196 public static const int ERROR_CANNOT_SET_CLIPBOARD = 2002;
194 197
195 /** 198 /**
196 * Error code: Data does not have correct format for type (value is 2003). 199 * Error code: Data does not have correct format for type (value is 2003).
197 * @since 3.1 200 * @since 3.1
198 */ 201 */
199 public static final int ERROR_INVALID_DATA = 2003; 202 public static const int ERROR_INVALID_DATA = 2003;
200 203
201 /** 204 /**
202 * DropTarget Key: The string constant for looking up the drop target 205 * DropTarget Key: The string constant for looking up the drop target
203 * for a control using <code>getData(String)</code>. When a drop target 206 * for a control using <code>getData(String)</code>. When a drop target
204 * is created for a control, it is stored as a property in the control 207 * is created for a control, it is stored as a property in the control
205 * using <code>setData(String, Object)</code>. 208 * using <code>setData(String, Object)</code>.
206 * 209 *
207 * @since 3.4 210 * @since 3.4
208 */ 211 */
209 public static final String DROP_TARGET_KEY = "DropTarget"; //$NON-NLS-1$ 212 public static const String DROP_TARGET_KEY = "DropTarget"; //$NON-NLS-1$
210 213
211 /** 214 /**
212 * DragSource Key: The string constant for looking up the drag source 215 * DragSource Key: The string constant for looking up the drag source
213 * for a control using <code>getData(String)</code>. When a drag source 216 * for a control using <code>getData(String)</code>. When a drag source
214 * is created for a control, it is stored as a property in the control 217 * is created for a control, it is stored as a property in the control
215 * using <code>setData(String, Object)</code>. 218 * using <code>setData(String, Object)</code>.
216 * 219 *
217 * @since 3.4 220 * @since 3.4
218 */ 221 */
219 public static final String DRAG_SOURCE_KEY = "DragSource"; //$NON-NLS-1$ 222 public static const String DRAG_SOURCE_KEY = "DragSource"; //$NON-NLS-1$
220 223
221 static final String INIT_DRAG_MESSAGE = "Cannot initialize Drag"; //$NON-NLS-1$ 224 static const String INIT_DRAG_MESSAGE = "Cannot initialize Drag"; //$NON-NLS-1$
222 static final String INIT_DROP_MESSAGE = "Cannot initialize Drop"; //$NON-NLS-1$ 225 static const String INIT_DROP_MESSAGE = "Cannot initialize Drop"; //$NON-NLS-1$
223 static final String CANNOT_SET_CLIPBOARD_MESSAGE = "Cannot set data in clipboard"; //$NON-NLS-1$ 226 static const String CANNOT_SET_CLIPBOARD_MESSAGE = "Cannot set data in clipboard"; //$NON-NLS-1$
224 static final String INVALID_DATA_MESSAGE = "Data does not have correct format for type"; //$NON-NLS-1$ 227 static const String INVALID_DATA_MESSAGE = "Data does not have correct format for type"; //$NON-NLS-1$
225 228
226 /** 229 /**
227 * Throws an appropriate exception based on the passed in error code. 230 * Throws an appropriate exception based on the passed in error code.
228 * 231 *
229 * @param code the DND error code 232 * @param code the DND error code
260 public static void error (int code, int hresult) { 263 public static void error (int code, int hresult) {
261 switch (code) { 264 switch (code) {
262 /* OS Failure/Limit (fatal, may occur only on some platforms) */ 265 /* OS Failure/Limit (fatal, may occur only on some platforms) */
263 case DND.ERROR_CANNOT_INIT_DRAG:{ 266 case DND.ERROR_CANNOT_INIT_DRAG:{
264 String msg = DND.INIT_DRAG_MESSAGE; 267 String msg = DND.INIT_DRAG_MESSAGE;
265 if (hresult !is 0) msg += " result = "+hresult; //$NON-NLS-1$ 268 if (hresult !is 0) msg ~= " result = "~Integer.toString(hresult); //$NON-NLS-1$
266 throw new DWTError (code, msg); 269 throw new DWTError (code, msg);
267 } 270 }
268 case DND.ERROR_CANNOT_INIT_DROP:{ 271 case DND.ERROR_CANNOT_INIT_DROP:{
269 String msg = DND.INIT_DROP_MESSAGE; 272 String msg = DND.INIT_DROP_MESSAGE;
270 if (hresult !is 0) msg += " result = "+hresult; //$NON-NLS-1$ 273 if (hresult !is 0) msg += " result = "~Integer.toString(hresult); //$NON-NLS-1$
271 throw new DWTError (code, msg); 274 throw new DWTError (code, msg);
272 } 275 }
273 case DND.ERROR_CANNOT_SET_CLIPBOARD:{ 276 case DND.ERROR_CANNOT_SET_CLIPBOARD:{
274 String msg = DND.CANNOT_SET_CLIPBOARD_MESSAGE; 277 String msg = DND.CANNOT_SET_CLIPBOARD_MESSAGE;
275 if (hresult !is 0) msg += " result = "+hresult; //$NON-NLS-1$ 278 if (hresult !is 0) msg += " result = "~Integer.toString(hresult); //$NON-NLS-1$
276 throw new DWTError (code, msg); 279 throw new DWTError (code, msg);
277 } 280 }
278 case DND.ERROR_INVALID_DATA:{ 281 case DND.ERROR_INVALID_DATA:{
279 String msg = DND.INVALID_DATA_MESSAGE; 282 String msg = DND.INVALID_DATA_MESSAGE;
280 if (hresult !is 0) msg += " result = "+hresult; //$NON-NLS-1$ 283 if (hresult !is 0) msg += " result = "~Integer.toString(hresult); //$NON-NLS-1$
281 throw new DWTException (code, msg); 284 throw new DWTException (code, msg);
282 } 285 }
286
287 default:
283 } 288 }
284 289
285 /* Unknown/Undefined Error */ 290 /* Unknown/Undefined Error */
286 DWT.error(code); 291 DWT.error(code);
287 } 292 }