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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: clipbrd.cpp | |
3 | // Purpose: Clipboard functionality | |
4 | // Author: AUTHOR | |
5 | // Modified by: | |
6 | // Created: ??/??/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) AUTHOR | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifdef __GNUG__ | |
13 | #pragma implementation | |
14 | #pragma implementation "clipbrd.h" | |
15 | #endif | |
16 | ||
17 | #include "wx/app.h" | |
18 | #include "wx/frame.h" | |
19 | #include "wx/bitmap.h" | |
20 | #include "wx/utils.h" | |
21 | #include "wx/metafile.h" | |
22 | #include "wx/clipbrd.h" | |
23 | #include "wx/intl.h" | |
24 | ||
25 | #define wxUSE_DATAOBJ 1 | |
26 | ||
27 | #include <string.h> | |
28 | ||
29 | // open/close | |
30 | ||
31 | bool clipboard_opened = false ; | |
32 | ||
33 | bool wxOpenClipboard() | |
34 | { | |
35 | clipboard_opened = true ; | |
36 | return TRUE; | |
37 | } | |
38 | ||
39 | bool wxCloseClipboard() | |
40 | { | |
41 | clipboard_opened = false ; | |
42 | return TRUE; | |
43 | } | |
44 | ||
45 | bool wxIsClipboardOpened() | |
46 | { | |
47 | return clipboard_opened; | |
48 | } | |
49 | ||
50 | bool wxEmptyClipboard() | |
51 | { | |
52 | ||
53 | #if TARGET_CARBON | |
54 | OSStatus err ; | |
55 | err = ClearCurrentScrap( ); | |
56 | #else | |
57 | OSErr err ; | |
58 | err = ZeroScrap( ); | |
59 | #endif | |
60 | if ( err ) | |
61 | { | |
62 | wxLogSysError(_("Failed to empty the clipboard.")); | |
63 | return FALSE ; | |
64 | } | |
65 | return TRUE; | |
66 | } | |
67 | ||
68 | // get/set data | |
69 | ||
70 | // clipboard formats | |
71 | ||
72 | bool wxIsClipboardFormatAvailable(wxDataFormat dataFormat) | |
73 | { | |
74 | #if TARGET_CARBON | |
75 | OSStatus err = noErr; | |
76 | ScrapRef scrapRef; | |
77 | ||
78 | err = GetCurrentScrap( &scrapRef ); | |
79 | if ( err != noTypeErr && err != memFullErr ) | |
80 | { | |
81 | ScrapFlavorFlags flavorFlags; | |
82 | Size byteCount; | |
83 | ||
84 | if (( err = GetScrapFlavorFlags( scrapRef, dataFormat.GetFormatId(), &flavorFlags )) == noErr) | |
85 | { | |
86 | if (( err = GetScrapFlavorSize( scrapRef, dataFormat.GetFormatId(), &byteCount )) == noErr) | |
87 | { | |
88 | return TRUE ; | |
89 | } | |
90 | } | |
91 | } | |
92 | return FALSE; | |
93 | ||
94 | #else | |
95 | long offset ; | |
96 | if ( GetScrap( NULL , dataFormat.GetFormatId() , &offset ) > 0 ) | |
97 | { | |
98 | return TRUE ; | |
99 | } | |
100 | return FALSE; | |
101 | #endif | |
102 | } | |
103 | ||
104 | bool wxSetClipboardData(wxDataFormat dataFormat,const void *data,int width , int height) | |
105 | { | |
106 | #if !TARGET_CARBON | |
107 | OSErr err = noErr ; | |
108 | #else | |
109 | OSStatus err = noErr ; | |
110 | #endif | |
111 | ||
112 | switch (dataFormat.GetType()) | |
113 | { | |
114 | case wxDF_BITMAP: | |
115 | { | |
116 | /* | |
117 | wxBitmap *bitmap = (wxBitmap *)data; | |
118 | ||
119 | HDC hdcMem = CreateCompatibleDC((HDC) NULL); | |
120 | HDC hdcSrc = CreateCompatibleDC((HDC) NULL); | |
121 | HBITMAP old = (HBITMAP) | |
122 | ::SelectObject(hdcSrc, (HBITMAP)bitmap->GetHBITMAP()); | |
123 | HBITMAP hBitmap = CreateCompatibleBitmap(hdcSrc, | |
124 | bitmap->GetWidth(), | |
125 | bitmap->GetHeight()); | |
126 | if (!hBitmap) | |
127 | { | |
128 | SelectObject(hdcSrc, old); | |
129 | DeleteDC(hdcMem); | |
130 | DeleteDC(hdcSrc); | |
131 | return FALSE; | |
132 | } | |
133 | ||
134 | HBITMAP old1 = (HBITMAP) SelectObject(hdcMem, hBitmap); | |
135 | BitBlt(hdcMem, 0, 0, bitmap->GetWidth(), bitmap->GetHeight(), | |
136 | hdcSrc, 0, 0, SRCCOPY); | |
137 | ||
138 | // Select new bitmap out of memory DC | |
139 | SelectObject(hdcMem, old1); | |
140 | ||
141 | // Set the data | |
142 | handle = ::SetClipboardData(CF_BITMAP, hBitmap); | |
143 | ||
144 | // Clean up | |
145 | SelectObject(hdcSrc, old); | |
146 | DeleteDC(hdcSrc); | |
147 | DeleteDC(hdcMem); | |
148 | */ | |
149 | break; | |
150 | } | |
151 | ||
152 | case wxDF_DIB: | |
153 | { | |
154 | /* | |
155 | #if wxUSE_IMAGE_LOADING_IN_MSW | |
156 | wxBitmap *bitmap = (wxBitmap *)data; | |
157 | HBITMAP hBitmap = (HBITMAP)bitmap->GetHBITMAP(); | |
158 | // NULL palette means to use the system one | |
159 | HANDLE hDIB = wxBitmapToDIB(hBitmap, (HPALETTE)NULL); | |
160 | handle = SetClipboardData(CF_DIB, hDIB); | |
161 | #endif // wxUSE_IMAGE_LOADING_IN_MSW | |
162 | */ | |
163 | break; | |
164 | } | |
165 | ||
166 | #if wxUSE_METAFILE | |
167 | case wxDF_METAFILE: | |
168 | { | |
169 | wxMetafile *wxMF = (wxMetafile *)data; | |
170 | PicHandle pict = wxMF->GetHMETAFILE() ; | |
171 | HLock( (Handle) pict ) ; | |
172 | #if !TARGET_CARBON | |
173 | err = PutScrap( GetHandleSize( (Handle) pict ) , 'PICT' , *pict ) ; | |
174 | #else | |
175 | ScrapRef scrap; | |
176 | err = GetCurrentScrap (&scrap); | |
177 | if ( !err ) | |
178 | { | |
179 | err = PutScrapFlavor (scrap, 'PICT', 0, GetHandleSize((Handle) pict), *pict); | |
180 | } | |
181 | #endif | |
182 | HUnlock( (Handle) pict ) ; | |
183 | break; | |
184 | } | |
185 | #endif | |
186 | case wxDF_SYLK: | |
187 | case wxDF_DIF: | |
188 | case wxDF_TIFF: | |
189 | case wxDF_PALETTE: | |
190 | default: | |
191 | { | |
192 | wxLogError(_("Unsupported clipboard format.")); | |
193 | return FALSE; | |
194 | } | |
195 | ||
196 | case wxDF_OEMTEXT: | |
197 | dataFormat = wxDF_TEXT; | |
198 | // fall through | |
199 | ||
200 | case wxDF_TEXT: | |
201 | { | |
202 | wxString mac ; | |
203 | if ( wxApp::s_macDefaultEncodingIsPC ) | |
204 | { | |
205 | mac = wxMacMakeMacStringFromPC((char *)data) ; | |
206 | } | |
207 | else | |
208 | { | |
209 | mac = (char *)data ; | |
210 | } | |
211 | #if !TARGET_CARBON | |
212 | err = PutScrap( mac.Length() , 'TEXT' , mac.c_str() ) ; | |
213 | #else | |
214 | ScrapRef scrap; | |
215 | err = GetCurrentScrap (&scrap); | |
216 | if ( !err ) | |
217 | { | |
218 | err = PutScrapFlavor (scrap, 'TEXT', 0, mac.Length(), mac.c_str()); | |
219 | } | |
220 | #endif | |
221 | break; | |
222 | } | |
223 | } | |
224 | ||
225 | if ( err ) | |
226 | { | |
227 | wxLogSysError(_("Failed to set clipboard data.")); | |
228 | ||
229 | return FALSE; | |
230 | } | |
231 | ||
232 | return TRUE; | |
233 | } | |
234 | ||
235 | wxDataFormat wxEnumClipboardFormats(wxDataFormat dataFormat) | |
236 | { | |
237 | return wxDataFormat(); | |
238 | } | |
239 | ||
240 | int wxRegisterClipboardFormat(wxChar *formatName) | |
241 | { | |
242 | return 0; | |
243 | } | |
244 | ||
245 | bool wxGetClipboardFormatName(wxDataFormat dataFormat, wxChar *formatName, int maxCount) | |
246 | { | |
247 | return FALSE; | |
248 | } | |
249 | ||
250 | void *wxGetClipboardData(wxDataFormat dataFormat, long *len) | |
251 | { | |
252 | return NULL; | |
253 | } | |
254 | ||
255 | ||
256 | /* | |
257 | * Generalized clipboard implementation by Matthew Flatt | |
258 | */ | |
259 | ||
260 | IMPLEMENT_DYNAMIC_CLASS(wxClipboard, wxClipboardBase) | |
261 | ||
262 | wxClipboard::wxClipboard() | |
263 | { | |
264 | m_clearOnExit = FALSE; | |
265 | } | |
266 | ||
267 | wxClipboard::~wxClipboard() | |
268 | { | |
269 | if ( m_clearOnExit ) | |
270 | { | |
271 | Clear(); | |
272 | } | |
273 | } | |
274 | ||
275 | void wxClipboard::Clear() | |
276 | { | |
277 | } | |
278 | ||
279 | bool wxClipboard::Flush() | |
280 | { | |
281 | return FALSE; | |
282 | } | |
283 | ||
284 | bool wxClipboard::Open() | |
285 | { | |
286 | return wxOpenClipboard(); | |
287 | } | |
288 | ||
289 | bool wxClipboard::IsOpened() const | |
290 | { | |
291 | return wxIsClipboardOpened(); | |
292 | } | |
293 | ||
294 | static int FormatStringToID(char *str) | |
295 | { | |
296 | if (!strcmp(str, "TEXT")) | |
297 | return wxDF_TEXT; | |
298 | ||
299 | return wxRegisterClipboardFormat(str); | |
300 | } | |
301 | ||
302 | bool wxClipboard::SetData( wxDataObject *data ) | |
303 | { | |
304 | (void)wxEmptyClipboard(); | |
305 | ||
306 | if ( data ) | |
307 | return AddData(data); | |
308 | else | |
309 | return TRUE; | |
310 | } | |
311 | ||
312 | bool wxClipboard::AddData( wxDataObject *data ) | |
313 | { | |
314 | wxCHECK_MSG( data, FALSE, wxT("data is invalid") ); | |
315 | ||
316 | #if wxUSE_DATAOBJ | |
317 | wxCHECK_MSG( wxIsClipboardOpened(), FALSE, wxT("clipboard not open") ); | |
318 | ||
319 | wxDataFormat format = data->GetPreferredFormat(); | |
320 | ||
321 | switch ( format.GetType() ) | |
322 | { | |
323 | case wxDF_TEXT: | |
324 | case wxDF_OEMTEXT: | |
325 | { | |
326 | wxTextDataObject* textDataObject = (wxTextDataObject*) data; | |
327 | wxString str(textDataObject->GetText()); | |
328 | return wxSetClipboardData(format, str.c_str()); | |
329 | } | |
330 | ||
331 | case wxDF_BITMAP: | |
332 | case wxDF_DIB: | |
333 | { | |
334 | wxBitmapDataObject* bitmapDataObject = (wxBitmapDataObject*) data; | |
335 | wxBitmap bitmap(bitmapDataObject->GetBitmap()); | |
336 | return wxSetClipboardData(format, &bitmap); | |
337 | } | |
338 | ||
339 | #if 0 // wxUSE_METAFILE | |
340 | case wxDF_METAFILE: | |
341 | { | |
342 | wxMetafileDataObject* metaFileDataObject = | |
343 | (wxMetafileDataObject*) data; | |
344 | wxMetafile metaFile = metaFileDataObject->GetMetafile(); | |
345 | return wxSetClipboardData(wxDF_METAFILE, &metaFile, | |
346 | metaFileDataObject->GetWidth(), | |
347 | metaFileDataObject->GetHeight()); | |
348 | } | |
349 | #endif // wxUSE_METAFILE | |
350 | ||
351 | default: | |
352 | // return wxSetClipboardData(data); | |
353 | break ; | |
354 | } | |
355 | #else // !wxUSE_DATAOBJ | |
356 | #endif | |
357 | return FALSE; | |
358 | } | |
359 | ||
360 | void wxClipboard::Close() | |
361 | { | |
362 | wxCloseClipboard(); | |
363 | } | |
364 | ||
365 | bool wxClipboard::IsSupported( const wxDataFormat &format ) | |
366 | { | |
367 | return wxIsClipboardFormatAvailable(format); | |
368 | } | |
369 | ||
370 | bool wxClipboard::GetData( wxDataObject& data ) | |
371 | { | |
372 | #if wxUSE_DATAOBJ | |
373 | wxCHECK_MSG( wxIsClipboardOpened(), FALSE, wxT("clipboard not open") ); | |
374 | ||
375 | wxDataFormat format = data.GetPreferredFormat(); | |
376 | switch ( format ) | |
377 | { | |
378 | case wxDF_TEXT: | |
379 | case wxDF_OEMTEXT: | |
380 | { | |
381 | wxTextDataObject& textDataObject = (wxTextDataObject &)data; | |
382 | char* s = (char*)wxGetClipboardData(format); | |
383 | if ( !s ) | |
384 | return FALSE; | |
385 | ||
386 | textDataObject.SetText(s); | |
387 | delete [] s; | |
388 | ||
389 | return TRUE; | |
390 | } | |
391 | ||
392 | case wxDF_BITMAP: | |
393 | case wxDF_DIB: | |
394 | { | |
395 | wxBitmapDataObject& bitmapDataObject = (wxBitmapDataObject &)data; | |
396 | wxBitmap* bitmap = (wxBitmap *)wxGetClipboardData(format ); | |
397 | if ( !bitmap ) | |
398 | return FALSE; | |
399 | ||
400 | bitmapDataObject.SetBitmap(*bitmap); | |
401 | delete bitmap; | |
402 | ||
403 | return TRUE; | |
404 | } | |
405 | #if 0 // wxUSE_METAFILE | |
406 | case wxDF_METAFILE: | |
407 | { | |
408 | wxMetafileDataObject& metaFileDataObject = (wxMetafileDataObject &)data; | |
409 | wxMetafile* metaFile = (wxMetafile *)wxGetClipboardData(wxDF_METAFILE); | |
410 | if ( !metaFile ) | |
411 | return FALSE; | |
412 | ||
413 | metaFileDataObject.SetMetafile(*metaFile); | |
414 | delete metaFile; | |
415 | ||
416 | return TRUE; | |
417 | } | |
418 | #endif // wxUSE_METAFILE | |
419 | } | |
420 | #else // !wxUSE_DATAOBJ | |
421 | wxFAIL_MSG( wxT("no clipboard implementation") ); | |
422 | #endif | |
423 | return FALSE; | |
424 | } | |
425 | /* | |
426 | void wxClipboard::SetClipboardClient(wxClipboardClient *client, long time) | |
427 | { | |
428 | bool got_selection; | |
429 | ||
430 | if (clipOwner) | |
431 | clipOwner->BeingReplaced(); | |
432 | clipOwner = client; | |
433 | if (cbString) { | |
434 | delete[] cbString; | |
435 | cbString = NULL; | |
436 | } | |
437 | ||
438 | if (wxOpenClipboard()) { | |
439 | char **formats, *data; | |
440 | int i; | |
441 | int ftype; | |
442 | long size; | |
443 | ||
444 | formats = clipOwner->formats.ListToArray(FALSE); | |
445 | for (i = clipOwner->formats.Number(); i--; ) { | |
446 | ftype = FormatStringToID(formats[i]); | |
447 | data = clipOwner->GetData(formats[i], &size); | |
448 | if (!wxSetClipboardData(ftype, (wxObject *)data, size, 1)) { | |
449 | got_selection = FALSE; | |
450 | break; | |
451 | } | |
452 | } | |
453 | ||
454 | if (i < 0) | |
455 | got_selection = wxCloseClipboard(); | |
456 | } else | |
457 | got_selection = FALSE; | |
458 | ||
459 | got_selection = FALSE; // Assume another process takes over | |
460 | ||
461 | if (!got_selection) { | |
462 | clipOwner->BeingReplaced(); | |
463 | clipOwner = NULL; | |
464 | } | |
465 | } | |
466 | ||
467 | wxClipboardClient *wxClipboard::GetClipboardClient() | |
468 | { | |
469 | return clipOwner; | |
470 | } | |
471 | ||
472 | void wxClipboard::SetClipboardString(char *str, long time) | |
473 | { | |
474 | bool got_selection; | |
475 | ||
476 | if (clipOwner) { | |
477 | clipOwner->BeingReplaced(); | |
478 | clipOwner = NULL; | |
479 | } | |
480 | if (cbString) | |
481 | delete[] cbString; | |
482 | ||
483 | cbString = str; | |
484 | ||
485 | if (wxOpenClipboard()) { | |
486 | if (!wxSetClipboardData(wxDF_TEXT, (wxObject *)str)) | |
487 | got_selection = FALSE; | |
488 | else | |
489 | got_selection = wxCloseClipboard(); | |
490 | } else | |
491 | got_selection = FALSE; | |
492 | ||
493 | got_selection = FALSE; // Assume another process takes over | |
494 | ||
495 | if (!got_selection) { | |
496 | delete[] cbString; | |
497 | cbString = NULL; | |
498 | } | |
499 | } | |
500 | char *wxClipboard::GetClipboardString(long time) | |
501 | { | |
502 | char *str; | |
503 | long length; | |
504 | ||
505 | str = GetClipboardData("TEXT", &length, time); | |
506 | if (!str) { | |
507 | str = new char[1]; | |
508 | *str = 0; | |
509 | } | |
510 | ||
511 | return str; | |
512 | } | |
513 | ||
514 | ||
515 | char *wxClipboard::GetClipboardData(char *format, long *length, long time) | |
516 | { | |
517 | if (clipOwner) { | |
518 | if (clipOwner->formats.Member(format)) | |
519 | return clipOwner->GetData(format, length); | |
520 | else | |
521 | return NULL; | |
522 | } else if (cbString) { | |
523 | if (!strcmp(format, "TEXT")) | |
524 | return copystring(cbString); | |
525 | else | |
526 | return NULL; | |
527 | } else { | |
528 | if (wxOpenClipboard()) { | |
529 | receivedString = (char *)wxGetClipboardData(FormatStringToID(format), | |
530 | length); | |
531 | wxCloseClipboard(); | |
532 | } else | |
533 | receivedString = NULL; | |
534 | ||
535 | return receivedString; | |
536 | } | |
537 | } | |
538 | */ | |
539 |