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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: dataobj.cpp | |
3 | // Purpose: wxDataObject class | |
4 | // Author: Robert Roebling | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 1998 Robert Roebling | |
7 | // Licence: wxWindows licence | |
8 | /////////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | #ifdef __GNUG__ | |
11 | #pragma implementation "dataobj.h" | |
12 | #endif | |
13 | ||
14 | #include "wx/dataobj.h" | |
15 | #include "wx/app.h" | |
16 | #include "wx/debug.h" | |
17 | ||
18 | #include "gdk/gdk.h" | |
19 | ||
20 | //------------------------------------------------------------------------- | |
21 | // wxDataFormat | |
22 | //------------------------------------------------------------------------- | |
23 | ||
24 | IMPLEMENT_CLASS(wxDataFormat, wxObject) | |
25 | ||
26 | wxDataFormat::wxDataFormat() | |
27 | { | |
28 | m_type = wxDF_INVALID; | |
29 | m_hasAtom = FALSE; | |
30 | m_atom = (GdkAtom) 0; | |
31 | } | |
32 | ||
33 | wxDataFormat::wxDataFormat( wxDataType type ) | |
34 | { | |
35 | SetType( type ); | |
36 | } | |
37 | ||
38 | wxDataFormat::wxDataFormat( const wxString &id ) | |
39 | { | |
40 | SetId( id ); | |
41 | } | |
42 | ||
43 | wxDataFormat::wxDataFormat( wxDataFormat &format ) | |
44 | { | |
45 | m_type = format.GetType(); | |
46 | m_id = format.GetId(); | |
47 | m_hasAtom = TRUE; | |
48 | m_atom = format.GetAtom(); | |
49 | } | |
50 | ||
51 | wxDataFormat::wxDataFormat( const GdkAtom atom ) | |
52 | { | |
53 | m_hasAtom = TRUE; | |
54 | ||
55 | m_atom = atom; | |
56 | ||
57 | if (m_atom == GDK_TARGET_STRING) | |
58 | { | |
59 | m_type = wxDF_TEXT; | |
60 | } else | |
61 | if (m_atom == GDK_TARGET_BITMAP) | |
62 | { | |
63 | m_type = wxDF_BITMAP; | |
64 | } else | |
65 | { | |
66 | m_type = wxDF_PRIVATE; | |
67 | m_id = gdk_atom_name( m_atom ); | |
68 | ||
69 | if (m_id == "file:ALL") | |
70 | { | |
71 | m_type = wxDF_FILENAME; | |
72 | } | |
73 | } | |
74 | } | |
75 | ||
76 | void wxDataFormat::SetType( wxDataType type ) | |
77 | { | |
78 | m_type = type; | |
79 | ||
80 | if (m_type == wxDF_TEXT) | |
81 | { | |
82 | m_id = "STRING"; | |
83 | } | |
84 | else | |
85 | if (m_type == wxDF_BITMAP) | |
86 | { | |
87 | m_id = "BITMAP"; | |
88 | } | |
89 | else | |
90 | if (m_type == wxDF_FILENAME) | |
91 | { | |
92 | m_id = "file:ALL"; | |
93 | } | |
94 | else | |
95 | { | |
96 | wxFAIL_MSG( "invalid dataformat" ); | |
97 | } | |
98 | ||
99 | m_hasAtom = FALSE; | |
100 | } | |
101 | ||
102 | wxDataType wxDataFormat::GetType() const | |
103 | { | |
104 | return m_type; | |
105 | } | |
106 | ||
107 | wxString wxDataFormat::GetId() const | |
108 | { | |
109 | return m_id; | |
110 | } | |
111 | ||
112 | void wxDataFormat::SetId( const wxString &id ) | |
113 | { | |
114 | m_type = wxDF_PRIVATE; | |
115 | m_id = id; | |
116 | m_hasAtom = FALSE; | |
117 | } | |
118 | ||
119 | GdkAtom wxDataFormat::GetAtom() | |
120 | { | |
121 | if (!m_hasAtom) | |
122 | { | |
123 | m_hasAtom = TRUE; | |
124 | ||
125 | if (m_type == wxDF_TEXT) | |
126 | { | |
127 | m_atom = GDK_TARGET_STRING; | |
128 | } | |
129 | else | |
130 | if (m_type == wxDF_BITMAP) | |
131 | { | |
132 | m_atom = GDK_TARGET_BITMAP; | |
133 | } | |
134 | else | |
135 | if (m_type == wxDF_PRIVATE) | |
136 | { | |
137 | m_atom = gdk_atom_intern( WXSTRINGCAST( m_id ), FALSE ); | |
138 | } | |
139 | else | |
140 | if (m_type == wxDF_FILENAME) | |
141 | { | |
142 | m_atom = gdk_atom_intern( "file:ALL", FALSE ); | |
143 | } | |
144 | else | |
145 | { | |
146 | m_hasAtom = FALSE; | |
147 | m_atom = (GdkAtom) 0; | |
148 | } | |
149 | } | |
150 | ||
151 | return m_atom; | |
152 | } | |
153 | ||
154 | //------------------------------------------------------------------------- | |
155 | // wxDataBroker | |
156 | //------------------------------------------------------------------------- | |
157 | ||
158 | IMPLEMENT_CLASS(wxDataBroker,wxObject) | |
159 | ||
160 | wxDataBroker::wxDataBroker() | |
161 | { | |
162 | m_dataObjects.DeleteContents(TRUE); | |
163 | m_preferred = 0; | |
164 | } | |
165 | ||
166 | void wxDataBroker::Add( wxDataObject *dataObject, bool preferred ) | |
167 | { | |
168 | if (preferred) m_preferred = m_dataObjects.GetCount(); | |
169 | m_dataObjects.Append( dataObject ); | |
170 | } | |
171 | ||
172 | size_t wxDataBroker::GetFormatCount() const | |
173 | { | |
174 | return m_dataObjects.GetCount(); | |
175 | } | |
176 | ||
177 | wxDataFormat &wxDataBroker::GetPreferredFormat() const | |
178 | { | |
179 | wxNode *node = m_dataObjects.Nth( m_preferred ); | |
180 | ||
181 | wxASSERT( node ); | |
182 | ||
183 | wxDataObject* data_obj = (wxDataObject*)node->Data(); | |
184 | ||
185 | return data_obj->GetFormat(); | |
186 | } | |
187 | ||
188 | wxDataFormat &wxDataBroker::GetNthFormat( size_t nth ) const | |
189 | { | |
190 | wxNode *node = m_dataObjects.Nth( nth ); | |
191 | ||
192 | wxASSERT( node ); | |
193 | ||
194 | wxDataObject* data_obj = (wxDataObject*)node->Data(); | |
195 | ||
196 | return data_obj->GetFormat(); | |
197 | } | |
198 | ||
199 | bool wxDataBroker::IsSupportedFormat( wxDataFormat &format ) const | |
200 | { | |
201 | wxNode *node = m_dataObjects.First(); | |
202 | while (node) | |
203 | { | |
204 | wxDataObject *dobj = (wxDataObject*)node->Data(); | |
205 | ||
206 | if (dobj->GetFormat().GetAtom() == format.GetAtom()) | |
207 | { | |
208 | return TRUE; | |
209 | } | |
210 | ||
211 | node = node->Next(); | |
212 | } | |
213 | ||
214 | return FALSE; | |
215 | } | |
216 | ||
217 | size_t wxDataBroker::GetSize( wxDataFormat& format ) const | |
218 | { | |
219 | wxNode *node = m_dataObjects.First(); | |
220 | while (node) | |
221 | { | |
222 | wxDataObject *dobj = (wxDataObject*)node->Data(); | |
223 | ||
224 | if (dobj->GetFormat().GetAtom() == format.GetAtom()) | |
225 | { | |
226 | return dobj->GetSize(); | |
227 | } | |
228 | ||
229 | node = node->Next(); | |
230 | } | |
231 | ||
232 | return 0; | |
233 | } | |
234 | ||
235 | void wxDataBroker::WriteData( wxDataFormat& format, void *dest ) const | |
236 | { | |
237 | wxNode *node = m_dataObjects.First(); | |
238 | while (node) | |
239 | { | |
240 | wxDataObject *dobj = (wxDataObject*)node->Data(); | |
241 | ||
242 | if (dobj->GetFormat().GetAtom() == format.GetAtom()) | |
243 | { | |
244 | dobj->WriteData( dest ); | |
245 | } | |
246 | ||
247 | node = node->Next(); | |
248 | } | |
249 | } | |
250 | ||
251 | //------------------------------------------------------------------------- | |
252 | // wxDataObject | |
253 | //------------------------------------------------------------------------- | |
254 | ||
255 | IMPLEMENT_ABSTRACT_CLASS( wxDataObject, wxObject ) | |
256 | ||
257 | wxDataObject::wxDataObject() | |
258 | { | |
259 | } | |
260 | ||
261 | wxDataObject::~wxDataObject() | |
262 | { | |
263 | } | |
264 | ||
265 | wxDataFormat &wxDataObject::GetFormat() | |
266 | { | |
267 | return m_format; | |
268 | } | |
269 | ||
270 | wxDataType wxDataObject::GetFormatType() const | |
271 | { | |
272 | return m_format.GetType(); | |
273 | } | |
274 | ||
275 | wxString wxDataObject::GetFormatId() const | |
276 | { | |
277 | return m_format.GetId(); | |
278 | } | |
279 | ||
280 | GdkAtom wxDataObject::GetFormatAtom() const | |
281 | { | |
282 | GdkAtom ret = ((wxDataObject*) this)->m_format.GetAtom(); | |
283 | return ret; | |
284 | } | |
285 | ||
286 | // ---------------------------------------------------------------------------- | |
287 | // wxTextDataObject | |
288 | // ---------------------------------------------------------------------------- | |
289 | ||
290 | IMPLEMENT_DYNAMIC_CLASS( wxTextDataObject, wxDataObject ) | |
291 | ||
292 | wxTextDataObject::wxTextDataObject() | |
293 | { | |
294 | m_format.SetType( wxDF_TEXT ); | |
295 | } | |
296 | ||
297 | wxTextDataObject::wxTextDataObject( const wxString& data ) | |
298 | { | |
299 | m_format.SetType( wxDF_TEXT ); | |
300 | ||
301 | m_data = data; | |
302 | } | |
303 | ||
304 | void wxTextDataObject::SetText( const wxString& data ) | |
305 | { | |
306 | m_data = data; | |
307 | } | |
308 | ||
309 | wxString wxTextDataObject::GetText() const | |
310 | { | |
311 | return m_data; | |
312 | } | |
313 | ||
314 | void wxTextDataObject::WriteData( void *dest ) const | |
315 | { | |
316 | WriteString( m_data, dest ); | |
317 | } | |
318 | ||
319 | size_t wxTextDataObject::GetSize() const | |
320 | { | |
321 | return m_data.Len() + 1; | |
322 | } | |
323 | ||
324 | void wxTextDataObject::WriteString( const wxString &str, void *dest ) const | |
325 | { | |
326 | memcpy( dest, m_data.c_str(), GetSize() ); | |
327 | } | |
328 | ||
329 | // ---------------------------------------------------------------------------- | |
330 | // wxFileDataObject | |
331 | // ---------------------------------------------------------------------------- | |
332 | ||
333 | IMPLEMENT_DYNAMIC_CLASS( wxFileDataObject, wxDataObject ) | |
334 | ||
335 | wxFileDataObject::wxFileDataObject() | |
336 | { | |
337 | m_format.SetType( wxDF_FILENAME ); | |
338 | } | |
339 | ||
340 | void wxFileDataObject::AddFile( const wxString &file ) | |
341 | { | |
342 | m_files += file; | |
343 | m_files += (char)0; | |
344 | } | |
345 | ||
346 | wxString wxFileDataObject::GetFiles() const | |
347 | { | |
348 | return m_files; | |
349 | } | |
350 | ||
351 | void wxFileDataObject::WriteData( void *dest ) const | |
352 | { | |
353 | memcpy( dest, m_files.c_str(), GetSize() ); | |
354 | } | |
355 | ||
356 | size_t wxFileDataObject::GetSize() const | |
357 | { | |
358 | return m_files.Len() + 1; | |
359 | } | |
360 | ||
361 | // ---------------------------------------------------------------------------- | |
362 | // wxBitmapDataObject | |
363 | // ---------------------------------------------------------------------------- | |
364 | ||
365 | IMPLEMENT_DYNAMIC_CLASS( wxBitmapDataObject, wxDataObject ) | |
366 | ||
367 | wxBitmapDataObject::wxBitmapDataObject() | |
368 | { | |
369 | m_format.SetType( wxDF_BITMAP ); | |
370 | } | |
371 | ||
372 | wxBitmapDataObject::wxBitmapDataObject( const wxBitmap& bitmap ) | |
373 | { | |
374 | m_format.SetType( wxDF_BITMAP ); | |
375 | ||
376 | m_bitmap = bitmap; | |
377 | } | |
378 | ||
379 | void wxBitmapDataObject::SetBitmap( const wxBitmap &bitmap ) | |
380 | { | |
381 | m_bitmap = bitmap; | |
382 | } | |
383 | ||
384 | wxBitmap wxBitmapDataObject::GetBitmap() const | |
385 | { | |
386 | return m_bitmap; | |
387 | } | |
388 | ||
389 | void wxBitmapDataObject::WriteData( void *dest ) const | |
390 | { | |
391 | WriteBitmap( m_bitmap, dest ); | |
392 | } | |
393 | ||
394 | size_t wxBitmapDataObject::GetSize() const | |
395 | { | |
396 | return 0; | |
397 | } | |
398 | ||
399 | void wxBitmapDataObject::WriteBitmap( const wxBitmap &bitmap, void *dest ) const | |
400 | { | |
401 | memcpy( dest, m_bitmap.GetPixmap(), GetSize() ); | |
402 | } | |
403 | ||
404 | // ---------------------------------------------------------------------------- | |
405 | // wxPrivateDataObject | |
406 | // ---------------------------------------------------------------------------- | |
407 | ||
408 | IMPLEMENT_DYNAMIC_CLASS( wxPrivateDataObject, wxDataObject ) | |
409 | ||
410 | wxPrivateDataObject::wxPrivateDataObject() | |
411 | { | |
412 | m_id = "application/"; | |
413 | m_id += wxTheApp->GetAppName(); | |
414 | ||
415 | m_format.SetId( m_id ); | |
416 | ||
417 | m_size = 0; | |
418 | m_data = (char*) NULL; | |
419 | } | |
420 | ||
421 | wxPrivateDataObject::~wxPrivateDataObject() | |
422 | { | |
423 | if (m_data) delete[] m_data; | |
424 | } | |
425 | ||
426 | void wxPrivateDataObject::SetId( const wxString& id ) | |
427 | { | |
428 | m_id = id; | |
429 | m_format.SetId( m_id ); | |
430 | } | |
431 | ||
432 | wxString wxPrivateDataObject::GetId() const | |
433 | { | |
434 | return m_id; | |
435 | } | |
436 | ||
437 | void wxPrivateDataObject::SetData( const char *data, size_t size ) | |
438 | { | |
439 | m_size = size; | |
440 | ||
441 | if (m_data) delete[] m_data; | |
442 | ||
443 | m_data = new char[size]; | |
444 | ||
445 | memcpy( m_data, data, size ); | |
446 | } | |
447 | ||
448 | char* wxPrivateDataObject::GetData() const | |
449 | { | |
450 | return m_data; | |
451 | } | |
452 | ||
453 | void wxPrivateDataObject::WriteData( void *dest ) const | |
454 | { | |
455 | WriteData( m_data, dest ); | |
456 | } | |
457 | ||
458 | size_t wxPrivateDataObject::GetSize() const | |
459 | { | |
460 | return m_size; | |
461 | } | |
462 | ||
463 | void wxPrivateDataObject::WriteData( const char *data, void *dest ) const | |
464 | { | |
465 | memcpy( dest, data, GetSize() ); | |
466 | } | |
467 |