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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: clipbrd.cpp | |
3 | // Purpose: Clipboard functionality | |
4 | // Author: David Webster | |
5 | // Modified by: | |
6 | // Created: 10/13/99 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) David Webster | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // For compilers that support precompilation, includes "wx.h". | |
13 | #include "wx/wxprec.h" | |
14 | ||
15 | #ifndef WX_PRECOMP | |
16 | #include "wx/setup.h" | |
17 | #endif | |
18 | ||
19 | #if wxUSE_CLIPBOARD | |
20 | ||
21 | #ifndef WX_PRECOMP | |
22 | #include "wx/object.h" | |
23 | #include "wx/event.h" | |
24 | #include "wx/app.h" | |
25 | #include "wx/frame.h" | |
26 | #include "wx/bitmap.h" | |
27 | #include "wx/utils.h" | |
28 | #include "wx/intl.h" | |
29 | #endif | |
30 | ||
31 | #if wxUSE_METAFILE | |
32 | #include "wx/metafile.h" | |
33 | #endif | |
34 | ||
35 | #include "wx/log.h" | |
36 | #include "wx/clipbrd.h" | |
37 | ||
38 | #include <string.h> | |
39 | ||
40 | #define INCL_DOS | |
41 | #define INCL_PM | |
42 | #include <os2.h> | |
43 | ||
44 | #include "wx/os2/private.h" | |
45 | ||
46 | // wxDataObject is tied to OLE/drag and drop implementation, | |
47 | // therefore so is wxClipboard :-( | |
48 | #if wxUSE_DRAG_AND_DROP | |
49 | #include "wx/dataobj.h" | |
50 | ||
51 | static bool wxSetClipboardData(wxDataObject *data); | |
52 | #endif | |
53 | ||
54 | // =========================================================================== | |
55 | // implementation | |
56 | // =========================================================================== | |
57 | ||
58 | // --------------------------------------------------------------------------- | |
59 | // old-style clipboard functions using Windows API | |
60 | // --------------------------------------------------------------------------- | |
61 | ||
62 | static bool gs_wxClipboardIsOpen = FALSE; | |
63 | ||
64 | bool wxOpenClipboard() | |
65 | { | |
66 | wxCHECK_MSG( !gs_wxClipboardIsOpen, TRUE, wxT("clipboard already opened.") ); | |
67 | // TODO: | |
68 | /* | |
69 | wxWindow *win = wxTheApp->GetTopWindow(); | |
70 | if ( win ) | |
71 | { | |
72 | gs_wxClipboardIsOpen = ::OpenClipboard((HWND)win->GetHWND()) != 0; | |
73 | ||
74 | if ( !gs_wxClipboardIsOpen ) | |
75 | wxLogSysError(_("Failed to open the clipboard.")); | |
76 | ||
77 | return gs_wxClipboardIsOpen; | |
78 | } | |
79 | else | |
80 | { | |
81 | wxLogDebug(wxT("Can not open clipboard without a main window.")); | |
82 | ||
83 | return FALSE; | |
84 | } | |
85 | */ | |
86 | return FALSE; | |
87 | } | |
88 | ||
89 | bool wxCloseClipboard() | |
90 | { | |
91 | wxCHECK_MSG( gs_wxClipboardIsOpen, FALSE, wxT("clipboard is not opened") ); | |
92 | // TODO: | |
93 | /* | |
94 | gs_wxClipboardIsOpen = FALSE; | |
95 | ||
96 | if ( ::CloseClipboard() == 0 ) | |
97 | { | |
98 | wxLogSysError(_("Failed to close the clipboard.")); | |
99 | ||
100 | return FALSE; | |
101 | } | |
102 | */ | |
103 | return TRUE; | |
104 | } | |
105 | ||
106 | bool wxEmptyClipboard() | |
107 | { | |
108 | // TODO: | |
109 | /* | |
110 | if ( ::EmptyClipboard() == 0 ) | |
111 | { | |
112 | wxLogSysError(_("Failed to empty the clipboard.")); | |
113 | ||
114 | return FALSE; | |
115 | } | |
116 | */ | |
117 | return TRUE; | |
118 | } | |
119 | ||
120 | bool wxIsClipboardOpened() | |
121 | { | |
122 | return gs_wxClipboardIsOpen; | |
123 | } | |
124 | ||
125 | bool wxIsClipboardFormatAvailable(wxDataFormat dataFormat) | |
126 | { | |
127 | // TODO: return ::IsClipboardFormatAvailable(dataFormat) != 0; | |
128 | return FALSE; | |
129 | } | |
130 | ||
131 | #if wxUSE_DRAG_AND_DROP | |
132 | static bool wxSetClipboardData(wxDataObject *data) | |
133 | { | |
134 | // TODO: | |
135 | /* | |
136 | size_t size = data->GetDataSize(); | |
137 | HANDLE hGlobal = ::GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, size); | |
138 | if ( !hGlobal ) | |
139 | { | |
140 | wxLogSysError(_("Failed to allocate %dKb of memory for clipboard " | |
141 | "transfer."), size / 1024); | |
142 | ||
143 | return FALSE; | |
144 | } | |
145 | ||
146 | LPVOID lpGlobalMemory = ::GlobalLock(hGlobal); | |
147 | ||
148 | data->GetDataHere(lpGlobalMemory); | |
149 | ||
150 | GlobalUnlock(hGlobal); | |
151 | ||
152 | wxDataFormat format = data->GetPreferredFormat(); | |
153 | if ( !::SetClipboardData(format, hGlobal) ) | |
154 | { | |
155 | wxLogSysError(_("Failed to set clipboard data in format %s"), | |
156 | wxDataObject::GetFormatName(format)); | |
157 | ||
158 | return FALSE; | |
159 | } | |
160 | */ | |
161 | return TRUE; | |
162 | } | |
163 | #endif // wxUSE_DRAG_AND_DROP | |
164 | ||
165 | bool wxSetClipboardData(wxDataFormat dataFormat, | |
166 | const void *data, | |
167 | int width, int height) | |
168 | { | |
169 | // TODO: | |
170 | /* | |
171 | HANDLE handle = 0; // return value of SetClipboardData | |
172 | switch (dataFormat) | |
173 | { | |
174 | case wxDF_BITMAP: | |
175 | { | |
176 | wxBitmap *bitmap = (wxBitmap *)data; | |
177 | ||
178 | HDC hdcMem = CreateCompatibleDC((HDC) NULL); | |
179 | HDC hdcSrc = CreateCompatibleDC((HDC) NULL); | |
180 | HBITMAP old = (HBITMAP) | |
181 | ::SelectObject(hdcSrc, (HBITMAP)bitmap->GetHBITMAP()); | |
182 | HBITMAP hBitmap = CreateCompatibleBitmap(hdcSrc, | |
183 | bitmap->GetWidth(), | |
184 | bitmap->GetHeight()); | |
185 | if (!hBitmap) | |
186 | { | |
187 | SelectObject(hdcSrc, old); | |
188 | DeleteDC(hdcMem); | |
189 | DeleteDC(hdcSrc); | |
190 | return FALSE; | |
191 | } | |
192 | ||
193 | HBITMAP old1 = (HBITMAP) SelectObject(hdcMem, hBitmap); | |
194 | BitBlt(hdcMem, 0, 0, bitmap->GetWidth(), bitmap->GetHeight(), | |
195 | hdcSrc, 0, 0, SRCCOPY); | |
196 | ||
197 | // Select new bitmap out of memory DC | |
198 | SelectObject(hdcMem, old1); | |
199 | ||
200 | // Set the data | |
201 | handle = ::SetClipboardData(CF_BITMAP, hBitmap); | |
202 | ||
203 | // Clean up | |
204 | SelectObject(hdcSrc, old); | |
205 | DeleteDC(hdcSrc); | |
206 | DeleteDC(hdcMem); | |
207 | break; | |
208 | } | |
209 | ||
210 | case wxDF_DIB: | |
211 | { | |
212 | #if wxUSE_IMAGE_LOADING_IN_MSW | |
213 | wxBitmap *bitmap = (wxBitmap *)data; | |
214 | HBITMAP hBitmap = (HBITMAP)bitmap->GetHBITMAP(); | |
215 | // NULL palette means to use the system one | |
216 | HANDLE hDIB = wxBitmapToDIB(hBitmap, (HPALETTE)NULL); | |
217 | handle = SetClipboardData(CF_DIB, hDIB); | |
218 | #endif | |
219 | break; | |
220 | } | |
221 | ||
222 | #if wxUSE_METAFILE | |
223 | case wxDF_METAFILE: | |
224 | { | |
225 | wxMetafile *wxMF = (wxMetafile *)data; | |
226 | HANDLE data = GlobalAlloc(GHND, sizeof(METAFILEPICT) + 1); | |
227 | METAFILEPICT *mf = (METAFILEPICT *)GlobalLock(data); | |
228 | ||
229 | mf->mm = wxMF->GetWindowsMappingMode(); | |
230 | mf->xExt = width; | |
231 | mf->yExt = height; | |
232 | mf->hMF = (HMETAFILE) wxMF->GetHMETAFILE(); | |
233 | GlobalUnlock(data); | |
234 | wxMF->SetHMETAFILE((WXHANDLE) NULL); | |
235 | ||
236 | handle = SetClipboardData(CF_METAFILEPICT, data); | |
237 | break; | |
238 | } | |
239 | #endif | |
240 | case CF_SYLK: | |
241 | case CF_DIF: | |
242 | case CF_TIFF: | |
243 | case CF_PALETTE: | |
244 | default: | |
245 | { | |
246 | wxLogError(_("Unsupported clipboard format.")); | |
247 | return FALSE; | |
248 | } | |
249 | ||
250 | case wxDF_OEMTEXT: | |
251 | dataFormat = wxDF_TEXT; | |
252 | // fall through | |
253 | ||
254 | case wxDF_TEXT: | |
255 | { | |
256 | char *s = (char *)data; | |
257 | ||
258 | width = strlen(s) + 1; | |
259 | height = 1; | |
260 | DWORD l = (width * height); | |
261 | HANDLE hGlobalMemory = GlobalAlloc(GHND, l); | |
262 | if ( hGlobalMemory ) | |
263 | { | |
264 | LPSTR lpGlobalMemory = (LPSTR)GlobalLock(hGlobalMemory); | |
265 | ||
266 | memcpy(lpGlobalMemory, s, l); | |
267 | ||
268 | GlobalUnlock(hGlobalMemory); | |
269 | } | |
270 | ||
271 | handle = SetClipboardData(dataFormat, hGlobalMemory); | |
272 | break; | |
273 | } | |
274 | } | |
275 | ||
276 | if ( handle == 0 ) | |
277 | { | |
278 | wxLogSysError(_("Failed to set clipboard data.")); | |
279 | ||
280 | return FALSE; | |
281 | } | |
282 | */ | |
283 | return TRUE; | |
284 | } | |
285 | ||
286 | void *wxGetClipboardData(wxDataFormat dataFormat, long *len) | |
287 | { | |
288 | void *retval = NULL; | |
289 | // TODO: | |
290 | /* | |
291 | switch ( dataFormat ) | |
292 | { | |
293 | case wxDF_BITMAP: | |
294 | { | |
295 | BITMAP bm; | |
296 | HBITMAP hBitmap = (HBITMAP) GetClipboardData(CF_BITMAP); | |
297 | if (!hBitmap) | |
298 | break; | |
299 | ||
300 | HDC hdcMem = CreateCompatibleDC((HDC) NULL); | |
301 | HDC hdcSrc = CreateCompatibleDC((HDC) NULL); | |
302 | ||
303 | HBITMAP old = (HBITMAP) ::SelectObject(hdcSrc, hBitmap); | |
304 | GetObject(hBitmap, sizeof(BITMAP), (LPSTR)&bm); | |
305 | ||
306 | HBITMAP hNewBitmap = CreateBitmapIndirect(&bm); | |
307 | ||
308 | if (!hNewBitmap) | |
309 | { | |
310 | SelectObject(hdcSrc, old); | |
311 | DeleteDC(hdcMem); | |
312 | DeleteDC(hdcSrc); | |
313 | break; | |
314 | } | |
315 | ||
316 | HBITMAP old1 = (HBITMAP) SelectObject(hdcMem, hNewBitmap); | |
317 | BitBlt(hdcMem, 0, 0, bm.bmWidth, bm.bmHeight, | |
318 | hdcSrc, 0, 0, SRCCOPY); | |
319 | ||
320 | // Select new bitmap out of memory DC | |
321 | SelectObject(hdcMem, old1); | |
322 | ||
323 | // Clean up | |
324 | SelectObject(hdcSrc, old); | |
325 | DeleteDC(hdcSrc); | |
326 | DeleteDC(hdcMem); | |
327 | ||
328 | // Create and return a new wxBitmap | |
329 | wxBitmap *wxBM = new wxBitmap; | |
330 | wxBM->SetHBITMAP((WXHBITMAP) hNewBitmap); | |
331 | wxBM->SetWidth(bm.bmWidth); | |
332 | wxBM->SetHeight(bm.bmHeight); | |
333 | wxBM->SetDepth(bm.bmPlanes); | |
334 | wxBM->SetOk(TRUE); | |
335 | retval = wxBM; | |
336 | break; | |
337 | } | |
338 | ||
339 | case wxDF_METAFILE: | |
340 | case CF_SYLK: | |
341 | case CF_DIF: | |
342 | case CF_TIFF: | |
343 | case CF_PALETTE: | |
344 | case wxDF_DIB: | |
345 | { | |
346 | wxLogError(_("Unsupported clipboard format.")); | |
347 | return FALSE; | |
348 | } | |
349 | ||
350 | case wxDF_OEMTEXT: | |
351 | dataFormat = wxDF_TEXT; | |
352 | // fall through | |
353 | ||
354 | case wxDF_TEXT: | |
355 | { | |
356 | HANDLE hGlobalMemory = ::GetClipboardData(dataFormat); | |
357 | if (!hGlobalMemory) | |
358 | break; | |
359 | ||
360 | DWORD hsize = ::GlobalSize(hGlobalMemory); | |
361 | if (len) | |
362 | *len = hsize; | |
363 | ||
364 | char *s = new char[hsize]; | |
365 | if (!s) | |
366 | break; | |
367 | ||
368 | LPSTR lpGlobalMemory = (LPSTR)::GlobalLock(hGlobalMemory); | |
369 | ||
370 | memcpy(s, lpGlobalMemory, hsize); | |
371 | ||
372 | ::GlobalUnlock(hGlobalMemory); | |
373 | ||
374 | retval = s; | |
375 | break; | |
376 | } | |
377 | ||
378 | default: | |
379 | { | |
380 | HANDLE hGlobalMemory = ::GetClipboardData(dataFormat); | |
381 | if ( !hGlobalMemory ) | |
382 | break; | |
383 | ||
384 | DWORD size = ::GlobalSize(hGlobalMemory); | |
385 | if ( len ) | |
386 | *len = size; | |
387 | ||
388 | void *buf = malloc(size); | |
389 | if ( !buf ) | |
390 | break; | |
391 | ||
392 | LPSTR lpGlobalMemory = (LPSTR)::GlobalLock(hGlobalMemory); | |
393 | ||
394 | memcpy(buf, lpGlobalMemory, size); | |
395 | ||
396 | ::GlobalUnlock(hGlobalMemory); | |
397 | ||
398 | retval = buf; | |
399 | break; | |
400 | } | |
401 | } | |
402 | ||
403 | if ( !retval ) | |
404 | { | |
405 | wxLogSysError(_("Failed to retrieve data from the clipboard.")); | |
406 | } | |
407 | ||
408 | return retval; | |
409 | */ | |
410 | return NULL; | |
411 | } | |
412 | ||
413 | wxDataFormat wxEnumClipboardFormats(wxDataFormat dataFormat) | |
414 | { | |
415 | // TODO: return ::EnumClipboardFormats(dataFormat); | |
416 | return dataFormat; | |
417 | } | |
418 | ||
419 | int wxRegisterClipboardFormat(wxChar *formatName) | |
420 | { | |
421 | // TODO: return ::RegisterClipboardFormat(formatName); | |
422 | return 0; | |
423 | } | |
424 | ||
425 | bool wxGetClipboardFormatName(wxDataFormat dataFormat, | |
426 | wxChar *formatName, | |
427 | int maxCount) | |
428 | { | |
429 | // TODO: return ::GetClipboardFormatName((int)dataFormat, formatName, maxCount) > 0; | |
430 | return 0; | |
431 | } | |
432 | ||
433 | // --------------------------------------------------------------------------- | |
434 | // wxClipboard | |
435 | // --------------------------------------------------------------------------- | |
436 | ||
437 | IMPLEMENT_DYNAMIC_CLASS(wxClipboard, wxObject) | |
438 | ||
439 | wxClipboard::wxClipboard() | |
440 | { | |
441 | } | |
442 | ||
443 | wxClipboard::~wxClipboard() | |
444 | { | |
445 | Clear(); | |
446 | } | |
447 | ||
448 | void wxClipboard::Clear() | |
449 | { | |
450 | } | |
451 | ||
452 | bool wxClipboard::Flush() | |
453 | { | |
454 | // TODO: | |
455 | return FALSE; | |
456 | } | |
457 | ||
458 | bool wxClipboard::Open() | |
459 | { | |
460 | return wxOpenClipboard(); | |
461 | } | |
462 | ||
463 | bool wxClipboard::IsOpened() const | |
464 | { | |
465 | return wxIsClipboardOpened(); | |
466 | } | |
467 | ||
468 | bool wxClipboard::SetData( wxDataObject *data ) | |
469 | { | |
470 | (void)wxEmptyClipboard(); | |
471 | // TODO: | |
472 | /* | |
473 | if ( data ) | |
474 | return AddData(data); | |
475 | else | |
476 | return TRUE; | |
477 | */ | |
478 | return TRUE; | |
479 | } | |
480 | ||
481 | bool wxClipboard::AddData( wxDataObject *data ) | |
482 | { | |
483 | wxCHECK_MSG( data, FALSE, wxT("data is invalid") ); | |
484 | ||
485 | #if wxUSE_DRAG_AND_DROP | |
486 | wxCHECK_MSG( wxIsClipboardOpened(), FALSE, wxT("clipboard not open") ); | |
487 | ||
488 | // wxDataFormat format = data->GetFormat(); | |
489 | // TODO: | |
490 | /* | |
491 | switch ( format ) | |
492 | { | |
493 | case wxDF_TEXT: | |
494 | case wxDF_OEMTEXT: | |
495 | { | |
496 | wxTextDataObject* textDataObject = (wxTextDataObject*) data; | |
497 | wxString str(textDataObject->GetText()); | |
498 | return wxSetClipboardData(format, str.c_str()); | |
499 | } | |
500 | ||
501 | case wxDF_BITMAP: | |
502 | case wxDF_DIB: | |
503 | { | |
504 | wxBitmapDataObject* bitmapDataObject = (wxBitmapDataObject*) data; | |
505 | wxBitmap bitmap(bitmapDataObject->GetBitmap()); | |
506 | return wxSetClipboardData(data->GetFormat(), &bitmap); | |
507 | } | |
508 | ||
509 | #if wxUSE_METAFILE | |
510 | case wxDF_METAFILE: | |
511 | { | |
512 | wxMetafileDataObject* metaFileDataObject = | |
513 | (wxMetafileDataObject*) data; | |
514 | wxMetafile metaFile = metaFileDataObject->GetMetafile(); | |
515 | return wxSetClipboardData(wxDF_METAFILE, &metaFile, | |
516 | metaFileDataObject->GetWidth(), | |
517 | metaFileDataObject->GetHeight()); | |
518 | } | |
519 | #endif // wxUSE_METAFILE | |
520 | ||
521 | default: | |
522 | return wxSetClipboardData(data); | |
523 | } | |
524 | #else // !wxUSE_DRAG_AND_DROP | |
525 | */ | |
526 | return FALSE; | |
527 | #endif // wxUSE_DRAG_AND_DROP/!wxUSE_DRAG_AND_DROP | |
528 | } | |
529 | ||
530 | void wxClipboard::Close() | |
531 | { | |
532 | wxCloseClipboard(); | |
533 | } | |
534 | ||
535 | bool wxClipboard::IsSupported( wxDataFormat format ) | |
536 | { | |
537 | return wxIsClipboardFormatAvailable(format); | |
538 | } | |
539 | ||
540 | bool wxClipboard::GetData( wxDataObject *data ) | |
541 | { | |
542 | wxCHECK_MSG( wxIsClipboardOpened(), FALSE, wxT("clipboard not open") ); | |
543 | ||
544 | #if wxUSE_DRAG_AND_DROP | |
545 | // wxDataFormat format = data->GetFormat(); | |
546 | // TODO: | |
547 | /* | |
548 | switch ( format ) | |
549 | { | |
550 | case wxDF_TEXT: | |
551 | case wxDF_OEMTEXT: | |
552 | { | |
553 | wxTextDataObject* textDataObject = (wxTextDataObject*) data; | |
554 | char* s = (char*) wxGetClipboardData(format); | |
555 | if ( s ) | |
556 | { | |
557 | textDataObject->SetText(s); | |
558 | delete[] s; | |
559 | return TRUE; | |
560 | } | |
561 | else | |
562 | return FALSE; | |
563 | } | |
564 | ||
565 | case wxDF_BITMAP: | |
566 | case wxDF_DIB: | |
567 | { | |
568 | wxBitmapDataObject* bitmapDataObject = (wxBitmapDataObject *)data; | |
569 | wxBitmap* bitmap = (wxBitmap *)wxGetClipboardData(data->GetFormat()); | |
570 | if (bitmap) | |
571 | { | |
572 | bitmapDataObject->SetBitmap(* bitmap); | |
573 | delete bitmap; | |
574 | return TRUE; | |
575 | } | |
576 | else | |
577 | return FALSE; | |
578 | } | |
579 | #if wxUSE_METAFILE | |
580 | case wxDF_METAFILE: | |
581 | { | |
582 | wxMetafileDataObject* metaFileDataObject = (wxMetafileDataObject *)data; | |
583 | wxMetafile* metaFile = (wxMetafile *)wxGetClipboardData(wxDF_METAFILE); | |
584 | if (metaFile) | |
585 | { | |
586 | metaFileDataObject->SetMetafile(*metaFile); | |
587 | delete metaFile; | |
588 | return TRUE; | |
589 | } | |
590 | else | |
591 | return FALSE; | |
592 | } | |
593 | #endif | |
594 | default: | |
595 | { | |
596 | long len; | |
597 | void *buf = wxGetClipboardData(format, &len); | |
598 | if ( buf ) | |
599 | { | |
600 | // FIXME this is for testing only!! | |
601 | ((wxPrivateDataObject *)data)->SetData(buf, len); | |
602 | free(buf); | |
603 | ||
604 | return TRUE; | |
605 | } | |
606 | } | |
607 | ||
608 | return FALSE; | |
609 | } | |
610 | #else | |
611 | */ | |
612 | return FALSE; | |
613 | #endif | |
614 | } | |
615 | ||
616 | #else | |
617 | #error "Please turn wxUSE_CLIPBOARD on to compile this file." | |
618 | #endif // wxUSE_CLIPBOARD | |
619 |