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