Mercurial > projects > dwt2
annotate org.eclipse.swt.gtk.linux.x86/src/org/eclipse/swt/dnd/DND.d @ 51:c01d033c633a
[swt lin]
author | Frank Benoit <benoit@tionex.de> |
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date | Fri, 27 Mar 2009 19:58:06 +0100 |
parents | 7a2dd761a8b2 |
children |
rev | line source |
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25 | 1 /******************************************************************************* |
2 * Copyright (c) 2000, 2008 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.DND; | |
14 | |
15 import java.lang.all; | |
16 | |
17 | |
18 import org.eclipse.swt.SWT; | |
19 import org.eclipse.swt.SWTError; | |
20 import org.eclipse.swt.SWTException; | |
21 | |
48 | 22 version(Tango){ |
51 | 23 import tango.util.Convert; |
48 | 24 } else { // Phobos |
51 | 25 import std.conv; |
48 | 26 } |
25 | 27 |
28 /** | |
29 * | |
30 * Class DND contains all the constants used in defining a | |
31 * DragSource or a DropTarget. | |
32 * | |
33 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
34 */ | |
35 public class DND { | |
36 | |
37 /** | |
38 * The transfer mechanism for data that is being cut | |
39 * and then pasted or copied and then pasted (value is 1). | |
40 * | |
41 * @see Clipboard | |
42 * | |
43 * @since 3.1 | |
44 */ | |
45 public const static int CLIPBOARD = 1 << 0; | |
46 | |
47 /** | |
48 * The transfer mechanism for clients that use the selection | |
49 * mechanism (value is 2). | |
50 * | |
51 * @see Clipboard | |
52 * | |
53 * @since 3.1 | |
54 */ | |
55 public const static int SELECTION_CLIPBOARD = 1 << 1; | |
56 | |
57 /** | |
58 * Drag and Drop Operation: no drag/drop operation performed | |
59 * (value is 0). | |
60 */ | |
61 public const static int DROP_NONE = 0; | |
62 | |
63 /** | |
64 * Drag and Drop Operation: a copy of the data in the drag source is | |
65 * added to the drop target (value is 1 << 0). | |
66 */ | |
67 public const static int DROP_COPY = 1 << 0; | |
68 | |
69 /** | |
70 * Drag and Drop Operation: a copy of the data is added to the drop target and | |
71 * the original data is removed from the drag source (value is 1 << 1). | |
72 */ | |
73 public const static int DROP_MOVE = 1 << 1; | |
74 | |
75 /** | |
76 * Drag and Drop Operation: the drop target makes a link to the data in | |
77 * the drag source (value is 1 << 2). | |
78 */ | |
79 public const static int DROP_LINK = 1 << 2; | |
80 | |
81 /** | |
82 * Drag and Drop Operation: the drop target moves the data and the drag source removes | |
83 * any references to the data and updates its display. This is not available on all platforms | |
84 * and is only used when a non-SWT application is the drop target. In this case, the SWT | |
85 * drag source is informed in the dragFinished event that the drop target has moved the data. | |
86 * (value is 1 << 3). | |
87 * | |
88 * @see DragSourceListener#dragFinished | |
89 */ | |
90 public const static int DROP_TARGET_MOVE = 1 << 3; | |
91 | |
92 /** | |
93 * Drag and Drop Operation: During a dragEnter event or a dragOperationChanged, if no modifier keys | |
94 * are pressed, the operation is set to DROP_DEFAULT. The application can choose what the default | |
95 * operation should be by setting a new value in the operation field. If no value is choosen, the | |
96 * default operation for the platform will be selected (value is 1 << 4). | |
97 * | |
98 * @see DropTargetListener#dragEnter | |
99 * @see DropTargetListener#dragOperationChanged | |
100 * @since 2.0 | |
101 */ | |
102 public const static int DROP_DEFAULT = 1 << 4; | |
103 | |
104 /** | |
105 * DragSource Event: the drop has successfully completed or has been terminated (such as hitting | |
106 * the ESC key); perform cleanup such as removing data on a move operation (value is 2000). | |
107 */ | |
108 public static const int DragEnd = 2000; | |
109 | |
110 /** | |
111 * DragSource Event: the data to be dropped is required from the drag source (value is 2001). | |
112 */ | |
113 public static const int DragSetData = 2001; | |
114 | |
115 /** | |
116 * DropTarget Event: the cursor has entered the drop target boundaries (value is 2002). | |
117 */ | |
118 public static const int DragEnter = 2002; | |
119 | |
120 /** | |
121 * DropTarget Event: the cursor has left the drop target boundaries OR the drop | |
122 * operation has been cancelled (such as by hitting ECS) OR the drop is about to | |
123 * happen (user has released the mouse button over this target) (value is 2003). | |
124 */ | |
125 public static const int DragLeave = 2003; | |
126 | |
127 /** | |
128 * DropTarget Event: the cursor is over the drop target (value is 2004). | |
129 */ | |
130 public static const int DragOver = 2004; | |
131 | |
132 /** | |
133 * DropTarget Event: the operation being performed has changed usually due to the user | |
134 * changing the selected modifier keys while dragging (value is 2005). | |
135 */ | |
136 public static const int DragOperationChanged = 2005; | |
137 | |
138 /** | |
139 * DropTarget Event: the data has been dropped (value is 2006). | |
140 */ | |
141 public static const int Drop = 2006; | |
142 | |
143 /** | |
144 * DropTarget Event: the drop target is given a last chance to modify the drop (value is 2007). | |
145 */ | |
146 public static const int DropAccept = 2007; | |
147 | |
148 /** | |
149 * DragSource Event: a drag is about to begin (value is 2008). | |
150 */ | |
151 public static const int DragStart = 2008; | |
152 | |
153 /** | |
154 * DropTarget drag under effect: No effect is shown (value is 0). | |
155 */ | |
156 public static const int FEEDBACK_NONE = 0; | |
157 | |
158 /** | |
159 * DropTarget drag under effect: The item under the cursor is selected; applies to tables | |
160 * and trees (value is 1). | |
161 */ | |
162 public static const int FEEDBACK_SELECT = 1; | |
163 | |
164 /** | |
165 * DropTarget drag under effect: An insertion mark is shown before the item under the cursor; applies to | |
166 * trees (value is 2). | |
167 */ | |
168 public static const int FEEDBACK_INSERT_BEFORE = 2; | |
169 | |
170 /** | |
171 * DropTarget drag under effect:An insertion mark is shown after the item under the cursor; applies to | |
172 * trees (value is 4). | |
173 */ | |
174 public static const int FEEDBACK_INSERT_AFTER = 4; | |
175 | |
176 /** | |
177 * DropTarget drag under effect: The widget is scrolled up or down to allow the user to drop on items that | |
178 * are not currently visible; applies to tables and trees (value is 8). | |
179 */ | |
180 public static const int FEEDBACK_SCROLL = 8; | |
181 | |
182 /** | |
183 * DropTarget drag under effect: The item currently under the cursor is expanded to allow the user to | |
184 * select a drop target from a sub item; applies to trees (value is 16). | |
185 */ | |
186 public static const int FEEDBACK_EXPAND = 16; | |
187 | |
188 /** | |
189 * Error code: drag source can not be initialized (value is 2000). | |
190 */ | |
191 public static const int ERROR_CANNOT_INIT_DRAG = 2000; | |
192 | |
193 /** | |
194 * Error code: drop target cannot be initialized (value is 2001). | |
195 */ | |
196 public static const int ERROR_CANNOT_INIT_DROP = 2001; | |
197 | |
198 /** | |
199 * Error code: Data can not be set on system clipboard (value is 2002). | |
200 */ | |
201 public static const int ERROR_CANNOT_SET_CLIPBOARD = 2002; | |
202 | |
203 /** | |
204 * Error code: Data does not have correct format for type (value is 2003). | |
205 * @since 3.1 | |
206 */ | |
207 public static const int ERROR_INVALID_DATA = 2003; | |
208 | |
209 /** | |
210 * DropTarget Key: The string constant for looking up the drop target | |
211 * for a control using <code>getData(String)</code>. When a drop target | |
212 * is created for a control, it is stored as a property in the control | |
213 * using <code>setData(String, Object)</code>. | |
214 * | |
215 * @since 3.4 | |
216 */ | |
49
7a2dd761a8b2
more work until dmd 2.026 linux segfaults.
Frank Benoit <benoit@tionex.de>
parents:
48
diff
changeset
|
217 public static const String DROP_TARGET_KEY = "DropTarget"; //$NON-NLS-1$ |
25 | 218 |
219 /** | |
220 * DragSource Key: The string constant for looking up the drag source | |
221 * for a control using <code>getData(String)</code>. When a drag source | |
222 * is created for a control, it is stored as a property in the control | |
223 * using <code>setData(String, Object)</code>. | |
224 * | |
225 * @since 3.4 | |
226 */ | |
49
7a2dd761a8b2
more work until dmd 2.026 linux segfaults.
Frank Benoit <benoit@tionex.de>
parents:
48
diff
changeset
|
227 public static const String DRAG_SOURCE_KEY = "DragSource"; //$NON-NLS-1$ |
25 | 228 |
229 static const String INIT_DRAG_MESSAGE = "Cannot initialize Drag"; //$NON-NLS-1$ | |
230 static const String INIT_DROP_MESSAGE = "Cannot initialize Drop"; //$NON-NLS-1$ | |
231 static const String CANNOT_SET_CLIPBOARD_MESSAGE = "Cannot set data in clipboard"; //$NON-NLS-1$ | |
232 static const String INVALID_DATA_MESSAGE = "Data does not have correct format for type"; //$NON-NLS-1$ | |
233 | |
234 /** | |
235 * Throws an appropriate exception based on the passed in error code. | |
236 * | |
237 * @param code the DND error code | |
238 */ | |
239 public static void error (int code) { | |
240 error (code, 0); | |
241 } | |
242 | |
243 /** | |
244 * Throws an appropriate exception based on the passed in error code. | |
245 * The <code>hresult</code> argument should be either 0, or the | |
246 * platform specific error code. | |
247 * <p> | |
248 * In DND, errors are reported by throwing one of three exceptions: | |
249 * <dl> | |
250 * <dd>java.lang.IllegalArgumentException</dd> | |
251 * <dt>thrown whenever one of the API methods is invoked with an illegal argument</dt> | |
252 * <dd>org.eclipse.swt.SWTException (extends java.lang.RuntimeException)</dd> | |
253 * <dt>thrown whenever a recoverable error happens internally in SWT</dt> | |
254 * <dd>org.eclipse.swt.SWTError (extends java.lang.Error)</dd> | |
255 * <dt>thrown whenever a <b>non-recoverable</b> error happens internally in SWT</dt> | |
256 * </dl> | |
257 * This method provides the logic which maps between error codes | |
258 * and one of the above exceptions. | |
259 * </p> | |
260 * | |
261 * @param code the DND error code. | |
262 * @param hresult the platform specific error code. | |
263 * | |
264 * @see SWTError | |
265 * @see SWTException | |
266 * @see IllegalArgumentException | |
267 */ | |
268 public static void error (int code, int hresult) { | |
269 switch (code) { | |
270 /* OS Failure/Limit (fatal, may occur only on some platforms) */ | |
271 case DND.ERROR_CANNOT_INIT_DRAG:{ | |
272 String msg = DND.INIT_DRAG_MESSAGE; | |
273 if (hresult !is 0) msg ~= " result = "~to!(String)(hresult); //$NON-NLS-1$ | |
274 throw new SWTError (code, msg); | |
275 } | |
276 case DND.ERROR_CANNOT_INIT_DROP:{ | |
277 String msg = DND.INIT_DROP_MESSAGE; | |
278 if (hresult !is 0) msg ~= " result = "~to!(String)(hresult); //$NON-NLS-1$ | |
279 throw new SWTError (code, msg); | |
280 } | |
281 case DND.ERROR_CANNOT_SET_CLIPBOARD:{ | |
282 String msg = DND.CANNOT_SET_CLIPBOARD_MESSAGE; | |
283 if (hresult !is 0) msg ~= " result = "~to!(String)(hresult); //$NON-NLS-1$ | |
284 throw new SWTError (code, msg); | |
285 } | |
286 case DND.ERROR_INVALID_DATA:{ | |
287 String msg = DND.INVALID_DATA_MESSAGE; | |
288 if (hresult !is 0) msg ~= " result = "~to!(String)(hresult); //$NON-NLS-1$ | |
289 throw new SWTException (code, msg); | |
290 } | |
291 default: | |
292 } | |
293 | |
294 /* Unknown/Undefined Error */ | |
295 SWT.error(code); | |
296 } | |
297 | |
298 } |