2 * GDI Device Context functions
4 * Copyright 1993 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
33 #include "wine/winuser16.h"
36 #include "wine/unicode.h"
37 #include "wine/debug.h"
39 WINE_DEFAULT_DEBUG_CHANNEL(dc);
41 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj );
43 static const struct gdi_obj_funcs dc_funcs =
45 NULL, /* pSelectObject */
46 NULL, /* pGetObject16 */
47 NULL, /* pGetObjectA */
48 NULL, /* pGetObjectW */
49 NULL, /* pUnrealizeObject */
50 DC_DeleteObject /* pDeleteObject */
53 /***********************************************************************
56 DC *DC_AllocDC( const DC_FUNCTIONS *funcs, WORD magic )
61 if (!(dc = GDI_AllocObject( sizeof(*dc), magic, (HGDIOBJ*)&hdc, &dc_funcs ))) return NULL;
82 dc->hPen = GetStockObject( BLACK_PEN );
83 dc->hBrush = GetStockObject( WHITE_BRUSH );
84 dc->hFont = GetStockObject( SYSTEM_FONT );
87 dc->hPalette = GetStockObject( DEFAULT_PALETTE );
89 dc->ROPmode = R2_COPYPEN;
90 dc->polyFillMode = ALTERNATE;
91 dc->stretchBltMode = BLACKONWHITE;
92 dc->relAbsMode = ABSOLUTE;
93 dc->backgroundMode = OPAQUE;
94 dc->backgroundColor = RGB( 255, 255, 255 );
95 dc->textColor = RGB( 0, 0, 0 );
98 dc->textAlign = TA_LEFT | TA_TOP | TA_NOUPDATECP;
100 dc->breakTotalExtra = 0;
104 dc->totalExtent.left = 0;
105 dc->totalExtent.top = 0;
106 dc->totalExtent.right = 0;
107 dc->totalExtent.bottom = 0;
108 dc->bitsPerPixel = 1;
109 dc->MapMode = MM_TEXT;
110 dc->GraphicsMode = GM_COMPATIBLE;
111 dc->pAbortProc = NULL;
114 dc->ArcDirection = AD_COUNTERCLOCKWISE;
115 dc->xformWorld2Wnd.eM11 = 1.0f;
116 dc->xformWorld2Wnd.eM12 = 0.0f;
117 dc->xformWorld2Wnd.eM21 = 0.0f;
118 dc->xformWorld2Wnd.eM22 = 1.0f;
119 dc->xformWorld2Wnd.eDx = 0.0f;
120 dc->xformWorld2Wnd.eDy = 0.0f;
121 dc->xformWorld2Vport = dc->xformWorld2Wnd;
122 dc->xformVport2World = dc->xformWorld2Wnd;
123 dc->vport2WorldValid = TRUE;
124 PATH_InitGdiPath(&dc->path);
130 /***********************************************************************
133 DC *DC_GetDCPtr( HDC hdc )
135 GDIOBJHDR *ptr = GDI_GetObjPtr( hdc, MAGIC_DONTCARE );
136 if (!ptr) return NULL;
137 if ((GDIMAGIC(ptr->wMagic) == DC_MAGIC) ||
138 (GDIMAGIC(ptr->wMagic) == MEMORY_DC_MAGIC) ||
139 (GDIMAGIC(ptr->wMagic) == METAFILE_DC_MAGIC) ||
140 (GDIMAGIC(ptr->wMagic) == ENHMETAFILE_DC_MAGIC))
142 GDI_ReleaseObj( hdc );
143 SetLastError( ERROR_INVALID_HANDLE );
147 /***********************************************************************
150 * Retrieve a DC ptr while making sure the visRgn is updated.
151 * This function may call up to USER so the GDI lock should _not_
152 * be held when calling it.
154 DC *DC_GetDCUpdate( HDC hdc )
156 DC *dc = DC_GetDCPtr( hdc );
157 if (!dc) return NULL;
158 while (dc->flags & DC_DIRTY)
160 DCHOOKPROC proc = dc->hookThunk;
161 dc->flags &= ~DC_DIRTY;
164 DWORD data = dc->dwHookData;
165 GDI_ReleaseObj( hdc );
166 proc( HDC_16(hdc), DCHC_INVALIDVISRGN, data, 0 );
167 if (!(dc = DC_GetDCPtr( hdc ))) break;
168 /* otherwise restart the loop in case it became dirty again in the meantime */
175 /***********************************************************************
178 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj )
180 GDI_ReleaseObj( handle );
181 return DeleteDC( handle );
185 /***********************************************************************
188 * Setup device-specific DC values for a newly created DC.
190 void DC_InitDC( DC* dc )
192 if (dc->funcs->pRealizeDefaultPalette) dc->funcs->pRealizeDefaultPalette( dc->physDev );
193 SetTextColor( dc->hSelf, dc->textColor );
194 SetBkColor( dc->hSelf, dc->backgroundColor );
195 SelectObject( dc->hSelf, dc->hPen );
196 SelectObject( dc->hSelf, dc->hBrush );
197 SelectObject( dc->hSelf, dc->hFont );
198 CLIPPING_UpdateGCRegion( dc );
202 /***********************************************************************
205 * Computes the inverse of the transformation xformSrc and stores it to
206 * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
209 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
213 determinant = xformSrc->eM11*xformSrc->eM22 -
214 xformSrc->eM12*xformSrc->eM21;
215 if (determinant > -1e-12 && determinant < 1e-12)
218 xformDest->eM11 = xformSrc->eM22 / determinant;
219 xformDest->eM12 = -xformSrc->eM12 / determinant;
220 xformDest->eM21 = -xformSrc->eM21 / determinant;
221 xformDest->eM22 = xformSrc->eM11 / determinant;
222 xformDest->eDx = -xformSrc->eDx * xformDest->eM11 -
223 xformSrc->eDy * xformDest->eM21;
224 xformDest->eDy = -xformSrc->eDx * xformDest->eM12 -
225 xformSrc->eDy * xformDest->eM22;
231 /***********************************************************************
234 * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
235 * fields of the specified DC by creating a transformation that
236 * represents the current mapping mode and combining it with the DC's
237 * world transform. This function should be called whenever the
238 * parameters associated with the mapping mode (window and viewport
239 * extents and origins) or the world transform change.
241 void DC_UpdateXforms( DC *dc )
243 XFORM xformWnd2Vport;
244 FLOAT scaleX, scaleY;
246 /* Construct a transformation to do the window-to-viewport conversion */
247 scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
248 scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
249 xformWnd2Vport.eM11 = scaleX;
250 xformWnd2Vport.eM12 = 0.0;
251 xformWnd2Vport.eM21 = 0.0;
252 xformWnd2Vport.eM22 = scaleY;
253 xformWnd2Vport.eDx = (FLOAT)dc->vportOrgX -
254 scaleX * (FLOAT)dc->wndOrgX;
255 xformWnd2Vport.eDy = (FLOAT)dc->vportOrgY -
256 scaleY * (FLOAT)dc->wndOrgY;
258 /* Combine with the world transformation */
259 CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
262 /* Create inverse of world-to-viewport transformation */
263 dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
264 &dc->xformVport2World );
266 /* Reselect the font back into the dc so that the font size
268 SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_FONT));
272 /***********************************************************************
273 * GetDCState (Not a Windows API)
275 HDC WINAPI GetDCState( HDC hdc )
280 if (!(dc = DC_GetDCPtr( hdc ))) return 0;
281 if (!(newdc = GDI_AllocObject( sizeof(DC), GDIMAGIC(dc->header.wMagic), &handle, &dc_funcs )))
283 GDI_ReleaseObj( hdc );
286 TRACE("(%p): returning %p\n", hdc, handle );
288 newdc->flags = dc->flags | DC_SAVED;
289 newdc->hPen = dc->hPen;
290 newdc->hBrush = dc->hBrush;
291 newdc->hFont = dc->hFont;
292 newdc->hBitmap = dc->hBitmap;
293 newdc->hDevice = dc->hDevice;
294 newdc->hPalette = dc->hPalette;
295 newdc->totalExtent = dc->totalExtent;
296 newdc->bitsPerPixel = dc->bitsPerPixel;
297 newdc->ROPmode = dc->ROPmode;
298 newdc->polyFillMode = dc->polyFillMode;
299 newdc->stretchBltMode = dc->stretchBltMode;
300 newdc->relAbsMode = dc->relAbsMode;
301 newdc->backgroundMode = dc->backgroundMode;
302 newdc->backgroundColor = dc->backgroundColor;
303 newdc->textColor = dc->textColor;
304 newdc->brushOrgX = dc->brushOrgX;
305 newdc->brushOrgY = dc->brushOrgY;
306 newdc->textAlign = dc->textAlign;
307 newdc->charExtra = dc->charExtra;
308 newdc->breakTotalExtra = dc->breakTotalExtra;
309 newdc->breakCount = dc->breakCount;
310 newdc->breakExtra = dc->breakExtra;
311 newdc->breakRem = dc->breakRem;
312 newdc->MapMode = dc->MapMode;
313 newdc->GraphicsMode = dc->GraphicsMode;
314 newdc->CursPosX = dc->CursPosX;
315 newdc->CursPosY = dc->CursPosY;
316 newdc->ArcDirection = dc->ArcDirection;
317 newdc->xformWorld2Wnd = dc->xformWorld2Wnd;
318 newdc->xformWorld2Vport = dc->xformWorld2Vport;
319 newdc->xformVport2World = dc->xformVport2World;
320 newdc->vport2WorldValid = dc->vport2WorldValid;
321 newdc->wndOrgX = dc->wndOrgX;
322 newdc->wndOrgY = dc->wndOrgY;
323 newdc->wndExtX = dc->wndExtX;
324 newdc->wndExtY = dc->wndExtY;
325 newdc->vportOrgX = dc->vportOrgX;
326 newdc->vportOrgY = dc->vportOrgY;
327 newdc->vportExtX = dc->vportExtX;
328 newdc->vportExtY = dc->vportExtY;
330 newdc->hSelf = (HDC)handle;
331 newdc->saveLevel = 0;
333 PATH_InitGdiPath( &newdc->path );
335 newdc->pAbortProc = NULL;
336 newdc->hookThunk = NULL;
339 /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
341 newdc->hGCClipRgn = newdc->hVisRgn = 0;
344 newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
345 CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
351 newdc->gdiFont = dc->gdiFont;
355 GDI_ReleaseObj( handle );
356 GDI_ReleaseObj( hdc );
361 /***********************************************************************
362 * SetDCState (Not a Windows API)
364 void WINAPI SetDCState( HDC hdc, HDC hdcs )
368 if (!(dc = DC_GetDCUpdate( hdc ))) return;
369 if (!(dcs = DC_GetDCPtr( hdcs )))
371 GDI_ReleaseObj( hdc );
374 if (!dcs->flags & DC_SAVED)
376 GDI_ReleaseObj( hdc );
377 GDI_ReleaseObj( hdcs );
380 TRACE("%p %p\n", hdc, hdcs );
382 dc->flags = dcs->flags & ~(DC_SAVED | DC_DIRTY);
383 dc->hDevice = dcs->hDevice;
384 dc->totalExtent = dcs->totalExtent;
385 dc->ROPmode = dcs->ROPmode;
386 dc->polyFillMode = dcs->polyFillMode;
387 dc->stretchBltMode = dcs->stretchBltMode;
388 dc->relAbsMode = dcs->relAbsMode;
389 dc->backgroundMode = dcs->backgroundMode;
390 dc->backgroundColor = dcs->backgroundColor;
391 dc->textColor = dcs->textColor;
392 dc->brushOrgX = dcs->brushOrgX;
393 dc->brushOrgY = dcs->brushOrgY;
394 dc->textAlign = dcs->textAlign;
395 dc->charExtra = dcs->charExtra;
396 dc->breakTotalExtra = dcs->breakTotalExtra;
397 dc->breakCount = dcs->breakCount;
398 dc->breakExtra = dcs->breakExtra;
399 dc->breakRem = dcs->breakRem;
400 dc->MapMode = dcs->MapMode;
401 dc->GraphicsMode = dcs->GraphicsMode;
402 dc->CursPosX = dcs->CursPosX;
403 dc->CursPosY = dcs->CursPosY;
404 dc->ArcDirection = dcs->ArcDirection;
405 dc->xformWorld2Wnd = dcs->xformWorld2Wnd;
406 dc->xformWorld2Vport = dcs->xformWorld2Vport;
407 dc->xformVport2World = dcs->xformVport2World;
408 dc->vport2WorldValid = dcs->vport2WorldValid;
410 dc->wndOrgX = dcs->wndOrgX;
411 dc->wndOrgY = dcs->wndOrgY;
412 dc->wndExtX = dcs->wndExtX;
413 dc->wndExtY = dcs->wndExtY;
414 dc->vportOrgX = dcs->vportOrgX;
415 dc->vportOrgY = dcs->vportOrgY;
416 dc->vportExtX = dcs->vportExtX;
417 dc->vportExtY = dcs->vportExtY;
419 if (GDIMAGIC(dc->header.wMagic) != MEMORY_DC_MAGIC) dc->bitsPerPixel = dcs->bitsPerPixel;
423 if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
424 CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
428 if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
431 CLIPPING_UpdateGCRegion( dc );
433 SelectObject( hdc, dcs->hBitmap );
434 SelectObject( hdc, dcs->hBrush );
435 SelectObject( hdc, dcs->hFont );
436 SelectObject( hdc, dcs->hPen );
437 SetBkColor( hdc, dcs->backgroundColor);
438 SetTextColor( hdc, dcs->textColor);
439 GDISelectPalette( hdc, dcs->hPalette, FALSE );
440 GDI_ReleaseObj( hdcs );
441 GDI_ReleaseObj( hdc );
445 /***********************************************************************
446 * GetDCState (GDI.179)
448 HDC16 WINAPI GetDCState16( HDC16 hdc )
450 return HDC_16( GetDCState( HDC_32(hdc) ));
454 /***********************************************************************
455 * SetDCState (GDI.180)
457 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
459 SetDCState( HDC_32(hdc), HDC_32(hdcs) );
463 /***********************************************************************
466 INT WINAPI SaveDC( HDC hdc )
472 dc = DC_GetDCPtr( hdc );
475 if(dc->funcs->pSaveDC)
477 ret = dc->funcs->pSaveDC( dc->physDev );
478 GDI_ReleaseObj( hdc );
482 if (!(hdcs = GetDCState( hdc )))
484 GDI_ReleaseObj( hdc );
487 dcs = DC_GetDCPtr( hdcs );
489 /* Copy path. The reason why path saving / restoring is in SaveDC/
490 * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
491 * functions are only in Win16 (which doesn't have paths) and that
492 * SetDCState doesn't allow us to signal an error (which can happen
493 * when copying paths).
495 if (!PATH_AssignGdiPath( &dcs->path, &dc->path ))
497 GDI_ReleaseObj( hdc );
498 GDI_ReleaseObj( hdcs );
503 dcs->header.hNext = dc->header.hNext;
504 dc->header.hNext = HDC_16(hdcs);
505 TRACE("(%p): returning %d\n", hdc, dc->saveLevel+1 );
506 ret = ++dc->saveLevel;
507 GDI_ReleaseObj( hdcs );
508 GDI_ReleaseObj( hdc );
513 /***********************************************************************
514 * RestoreDC (GDI32.@)
516 BOOL WINAPI RestoreDC( HDC hdc, INT level )
521 TRACE("%p %d\n", hdc, level );
522 dc = DC_GetDCUpdate( hdc );
523 if(!dc) return FALSE;
524 if(dc->funcs->pRestoreDC)
526 success = dc->funcs->pRestoreDC( dc->physDev, level );
527 GDI_ReleaseObj( hdc );
531 if (level == -1) level = dc->saveLevel;
533 /* This pair of checks disagrees with MSDN "Platform SDK:
534 Windows GDI" July 2000 which says all negative values
535 for level will be interpreted as an instance relative
536 to the current state. Restricting it to just -1 does
538 || (level > dc->saveLevel))
540 GDI_ReleaseObj( hdc );
545 while (dc->saveLevel >= level)
547 HDC hdcs = HDC_32(dc->header.hNext);
548 if (!(dcs = DC_GetDCPtr( hdcs )))
550 GDI_ReleaseObj( hdc );
553 dc->header.hNext = dcs->header.hNext;
554 if (--dc->saveLevel < level)
556 SetDCState( hdc, hdcs );
557 if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
558 /* FIXME: This might not be quite right, since we're
559 * returning FALSE but still destroying the saved DC state */
562 GDI_ReleaseObj( hdcs );
563 GDI_ReleaseObj( hdc );
565 if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
567 GDI_ReleaseObj( hdc );
572 /***********************************************************************
573 * CreateDCW (GDI32.@)
575 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
576 const DEVMODEW *initData )
580 const DC_FUNCTIONS *funcs;
585 if (!device || !DRIVER_GetDriverName( device, buf, 300 ))
587 if (!driver) return 0;
588 strcpyW(buf, driver);
591 if (!(funcs = DRIVER_load_driver( buf )))
593 ERR( "no driver found for %s\n", debugstr_w(buf) );
596 if (!(dc = DC_AllocDC( funcs, DC_MAGIC )))
598 DRIVER_release_driver( funcs );
602 dc->hBitmap = GetStockObject( DEFAULT_BITMAP );
604 TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
605 debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
607 if (dc->funcs->pCreateDC &&
608 !dc->funcs->pCreateDC( dc, &dc->physDev, buf, device, output, initData ))
610 WARN("creation aborted by device\n" );
611 GDI_FreeObject( dc->hSelf, dc );
612 DRIVER_release_driver( funcs );
616 dc->totalExtent.left = 0;
617 dc->totalExtent.top = 0;
618 dc->totalExtent.right = GetDeviceCaps( dc->hSelf, HORZRES );
619 dc->totalExtent.bottom = GetDeviceCaps( dc->hSelf, VERTRES );
620 dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
624 GDI_ReleaseObj( hdc );
629 /***********************************************************************
630 * CreateDCA (GDI32.@)
632 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
633 const DEVMODEA *initData )
635 UNICODE_STRING driverW, deviceW, outputW;
639 if (driver) RtlCreateUnicodeStringFromAsciiz(&driverW, driver);
640 else driverW.Buffer = NULL;
642 if (device) RtlCreateUnicodeStringFromAsciiz(&deviceW, device);
643 else deviceW.Buffer = NULL;
645 if (output) RtlCreateUnicodeStringFromAsciiz(&outputW, output);
646 else outputW.Buffer = NULL;
648 if (initData) initDataW = GdiConvertToDevmodeW(initData);
649 else initDataW = NULL;
651 ret = CreateDCW( driverW.Buffer, deviceW.Buffer, outputW.Buffer, initDataW );
653 RtlFreeUnicodeString(&driverW);
654 RtlFreeUnicodeString(&deviceW);
655 RtlFreeUnicodeString(&outputW);
656 if (initDataW) HeapFree(GetProcessHeap(), 0, initDataW);
661 /***********************************************************************
662 * CreateICA (GDI32.@)
664 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
665 const DEVMODEA* initData )
667 /* Nothing special yet for ICs */
668 return CreateDCA( driver, device, output, initData );
672 /***********************************************************************
673 * CreateICW (GDI32.@)
675 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
676 const DEVMODEW* initData )
678 /* Nothing special yet for ICs */
679 return CreateDCW( driver, device, output, initData );
683 /***********************************************************************
684 * CreateCompatibleDC (GDI32.@)
686 HDC WINAPI CreateCompatibleDC( HDC hdc )
689 const DC_FUNCTIONS *funcs;
694 if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC )))
696 funcs = origDC->funcs;
697 physDev = origDC->physDev;
698 GDI_ReleaseObj( hdc ); /* can't hold the lock while loading the driver */
699 funcs = DRIVER_get_driver( funcs );
703 static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
704 funcs = DRIVER_load_driver( displayW );
708 if (!funcs) return 0;
710 if (!(dc = DC_AllocDC( funcs, MEMORY_DC_MAGIC )))
712 DRIVER_release_driver( funcs );
716 TRACE("(%p): returning %p\n", hdc, dc->hSelf );
718 dc->bitsPerPixel = 1;
719 dc->hBitmap = GetStockObject( DEFAULT_BITMAP );
721 /* Copy the driver-specific physical device info into
722 * the new DC. The driver may use this read-only info
723 * while creating the compatible DC below. */
724 dc->physDev = physDev;
726 if (dc->funcs->pCreateDC &&
727 !dc->funcs->pCreateDC( dc, &dc->physDev, NULL, NULL, NULL, NULL ))
729 WARN("creation aborted by device\n");
730 GDI_FreeObject( dc->hSelf, dc );
731 DRIVER_release_driver( funcs );
735 dc->totalExtent.left = 0;
736 dc->totalExtent.top = 0;
737 dc->totalExtent.right = 1; /* default bitmap is 1x1 */
738 dc->totalExtent.bottom = 1;
739 dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
742 GDI_ReleaseObj( dc->hSelf );
747 /***********************************************************************
750 BOOL WINAPI DeleteDC( HDC hdc )
752 const DC_FUNCTIONS *funcs = NULL;
759 if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
761 /* Call hook procedure to check whether is it OK to delete this DC */
764 DCHOOKPROC proc = dc->hookThunk;
765 DWORD data = dc->dwHookData;
766 GDI_ReleaseObj( hdc );
767 if (!proc( HDC_16(hdc), DCHC_DELETEDC, data, 0 )) return FALSE;
768 if (!(dc = DC_GetDCPtr( hdc ))) return TRUE; /* deleted by the hook */
771 while (dc->saveLevel)
774 HDC hdcs = HDC_32(dc->header.hNext);
775 if (!(dcs = DC_GetDCPtr( hdcs ))) break;
776 dc->header.hNext = dcs->header.hNext;
778 if (dcs->hClipRgn) DeleteObject( dcs->hClipRgn );
779 if (dcs->hVisRgn) DeleteObject( dcs->hVisRgn );
780 if (dcs->hGCClipRgn) DeleteObject( dcs->hGCClipRgn );
781 PATH_DestroyGdiPath(&dcs->path);
782 GDI_FreeObject( hdcs, dcs );
785 if (!(dc->flags & DC_SAVED))
787 SelectObject( hdc, GetStockObject(BLACK_PEN) );
788 SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
789 SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
790 SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
792 if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
796 if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
797 if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
798 if (dc->hGCClipRgn) DeleteObject( dc->hGCClipRgn );
799 PATH_DestroyGdiPath(&dc->path);
801 GDI_FreeObject( hdc, dc );
802 if (funcs) DRIVER_release_driver( funcs ); /* do that after releasing the GDI lock */
807 /***********************************************************************
810 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
815 if ((dc = DC_GetDCPtr( hdc )))
817 if (dc->funcs->pResetDC) ret = dc->funcs->pResetDC( dc->physDev, devmode );
818 GDI_ReleaseObj( hdc );
824 /***********************************************************************
827 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
829 return ResetDCA(hdc, (const DEVMODEA*)devmode); /* FIXME */
833 /***********************************************************************
834 * GetDeviceCaps (GDI32.@)
836 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
841 if ((dc = DC_GetDCPtr( hdc )))
843 if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
844 GDI_ReleaseObj( hdc );
850 /***********************************************************************
851 * SetBkColor (GDI32.@)
853 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
856 DC * dc = DC_GetDCPtr( hdc );
858 if (!dc) return CLR_INVALID;
859 oldColor = dc->backgroundColor;
860 if (dc->funcs->pSetBkColor)
862 color = dc->funcs->pSetBkColor(dc->physDev, color);
863 if (color == CLR_INVALID) /* don't change it */
866 oldColor = CLR_INVALID;
869 dc->backgroundColor = color;
870 GDI_ReleaseObj( hdc );
875 /***********************************************************************
876 * SetTextColor (GDI32.@)
878 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
881 DC * dc = DC_GetDCPtr( hdc );
883 if (!dc) return CLR_INVALID;
884 oldColor = dc->textColor;
885 if (dc->funcs->pSetTextColor)
887 color = dc->funcs->pSetTextColor(dc->physDev, color);
888 if (color == CLR_INVALID) /* don't change it */
891 oldColor = CLR_INVALID;
894 dc->textColor = color;
895 GDI_ReleaseObj( hdc );
900 /***********************************************************************
901 * SetTextAlign (GDI32.@)
903 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
906 DC *dc = DC_GetDCPtr( hdc );
908 if (dc->funcs->pSetTextAlign)
909 prevAlign = dc->funcs->pSetTextAlign(dc->physDev, align);
911 prevAlign = dc->textAlign;
912 dc->textAlign = align;
914 GDI_ReleaseObj( hdc );
918 /***********************************************************************
919 * GetDCOrgEx (GDI32.@)
921 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
925 if (!lpp) return FALSE;
926 if (!(dc = DC_GetDCPtr( hDC ))) return FALSE;
929 if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
930 GDI_ReleaseObj( hDC );
935 /***********************************************************************
938 DWORD WINAPI SetDCOrg16( HDC16 hdc16, INT16 x, INT16 y )
941 HDC hdc = HDC_32( hdc16 );
942 DC *dc = DC_GetDCPtr( hdc );
944 if (dc->funcs->pSetDCOrg) prevOrg = dc->funcs->pSetDCOrg( dc->physDev, x, y );
945 GDI_ReleaseObj( hdc );
950 /***********************************************************************
951 * SetGraphicsMode (GDI32.@)
953 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
956 DC *dc = DC_GetDCPtr( hdc );
958 /* One would think that setting the graphics mode to GM_COMPATIBLE
959 * would also reset the world transformation matrix to the unity
960 * matrix. However, in Windows, this is not the case. This doesn't
961 * make a lot of sense to me, but that's the way it is.
964 if ((mode > 0) && (mode <= GM_LAST))
966 ret = dc->GraphicsMode;
967 dc->GraphicsMode = mode;
969 GDI_ReleaseObj( hdc );
974 /***********************************************************************
975 * SetArcDirection (GDI32.@)
977 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
980 INT nOldDirection = 0;
982 if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
984 SetLastError(ERROR_INVALID_PARAMETER);
988 if ((dc = DC_GetDCPtr( hdc )))
990 nOldDirection = dc->ArcDirection;
991 dc->ArcDirection = nDirection;
992 GDI_ReleaseObj( hdc );
994 return nOldDirection;
998 /***********************************************************************
999 * GetWorldTransform (GDI32.@)
1001 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1004 if (!xform) return FALSE;
1005 if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
1006 *xform = dc->xformWorld2Wnd;
1007 GDI_ReleaseObj( hdc );
1012 /***********************************************************************
1013 * GetTransform (GDI32.@)
1015 BOOL WINAPI GetTransform( HDC hdc, DWORD unknown, LPXFORM xform )
1017 if (unknown == 0x0203) return GetWorldTransform( hdc, xform );
1018 ERR("stub: don't know what to do for code %lx\n", unknown );
1023 /***********************************************************************
1024 * SetWorldTransform (GDI32.@)
1026 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1029 DC *dc = DC_GetDCPtr( hdc );
1031 if (!dc) return FALSE;
1032 if (!xform) goto done;
1034 /* Check that graphics mode is GM_ADVANCED */
1035 if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1037 if (dc->funcs->pSetWorldTransform)
1039 ret = dc->funcs->pSetWorldTransform(dc->physDev, xform);
1040 if (!ret) goto done;
1043 dc->xformWorld2Wnd = *xform;
1044 DC_UpdateXforms( dc );
1047 GDI_ReleaseObj( hdc );
1052 /****************************************************************************
1053 * ModifyWorldTransform [GDI32.@]
1054 * Modifies the world transformation for a device context.
1057 * hdc [I] Handle to device context
1058 * xform [I] XFORM structure that will be used to modify the world
1060 * iMode [I] Specifies in what way to modify the world transformation
1063 * Resets the world transformation to the identity matrix.
1064 * The parameter xform is ignored.
1066 * Multiplies xform into the world transformation matrix from
1069 * Multiplies xform into the world transformation matrix from
1074 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1078 DC *dc = DC_GetDCPtr( hdc );
1080 /* Check for illegal parameters */
1081 if (!dc) return FALSE;
1082 if (!xform) goto done;
1084 /* Check that graphics mode is GM_ADVANCED */
1085 if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1087 if (dc->funcs->pModifyWorldTransform)
1089 ret = dc->funcs->pModifyWorldTransform(dc->physDev, xform, iMode);
1090 if (!ret) goto done;
1096 dc->xformWorld2Wnd.eM11 = 1.0f;
1097 dc->xformWorld2Wnd.eM12 = 0.0f;
1098 dc->xformWorld2Wnd.eM21 = 0.0f;
1099 dc->xformWorld2Wnd.eM22 = 1.0f;
1100 dc->xformWorld2Wnd.eDx = 0.0f;
1101 dc->xformWorld2Wnd.eDy = 0.0f;
1103 case MWT_LEFTMULTIPLY:
1104 CombineTransform( &dc->xformWorld2Wnd, xform,
1105 &dc->xformWorld2Wnd );
1107 case MWT_RIGHTMULTIPLY:
1108 CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
1115 DC_UpdateXforms( dc );
1118 GDI_ReleaseObj( hdc );
1123 /****************************************************************************
1124 * CombineTransform [GDI32.@]
1125 * Combines two transformation matrices.
1128 * xformResult [O] Stores the result of combining the two matrices
1129 * xform1 [I] Specifies the first matrix to apply
1130 * xform2 [I] Specifies the second matrix to apply
1133 * The same matrix can be passed in for more than one of the parameters.
1137 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1138 const XFORM *xform2 )
1142 /* Check for illegal parameters */
1143 if (!xformResult || !xform1 || !xform2)
1146 /* Create the result in a temporary XFORM, since xformResult may be
1147 * equal to xform1 or xform2 */
1148 xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1149 xform1->eM12 * xform2->eM21;
1150 xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1151 xform1->eM12 * xform2->eM22;
1152 xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1153 xform1->eM22 * xform2->eM21;
1154 xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1155 xform1->eM22 * xform2->eM22;
1156 xformTemp.eDx = xform1->eDx * xform2->eM11 +
1157 xform1->eDy * xform2->eM21 +
1159 xformTemp.eDy = xform1->eDx * xform2->eM12 +
1160 xform1->eDy * xform2->eM22 +
1163 /* Copy the result to xformResult */
1164 *xformResult = xformTemp;
1170 /***********************************************************************
1171 * SetDCHook (GDI32.@)
1173 * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1175 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD dwHookData )
1177 DC *dc = GDI_GetObjPtr( hdc, DC_MAGIC );
1179 if (!dc) return FALSE;
1181 if (!(dc->flags & DC_SAVED))
1183 dc->dwHookData = dwHookData;
1184 dc->hookThunk = hookProc;
1186 GDI_ReleaseObj( hdc );
1191 /* relay function to call the 16-bit DC hook proc */
1192 static BOOL16 WINAPI call_dc_hook16( HDC16 hdc16, WORD code, DWORD data, LPARAM lParam )
1196 FARPROC16 proc = NULL;
1197 HDC hdc = HDC_32( hdc16 );
1198 DC *dc = DC_GetDCPtr( hdc );
1200 if (!dc) return FALSE;
1201 proc = dc->hookProc;
1202 GDI_ReleaseObj( hdc );
1203 if (!proc) return FALSE;
1206 args[3] = HIWORD(data);
1207 args[2] = LOWORD(data);
1208 args[1] = HIWORD(lParam);
1209 args[0] = LOWORD(lParam);
1210 WOWCallback16Ex( (DWORD)proc, WCB16_PASCAL, sizeof(args), args, &ret );
1214 /***********************************************************************
1215 * SetDCHook (GDI.190)
1217 BOOL16 WINAPI SetDCHook16( HDC16 hdc16, FARPROC16 hookProc, DWORD dwHookData )
1219 HDC hdc = HDC_32( hdc16 );
1220 DC *dc = DC_GetDCPtr( hdc );
1221 if (!dc) return FALSE;
1223 dc->hookProc = hookProc;
1224 GDI_ReleaseObj( hdc );
1225 return SetDCHook( hdc, call_dc_hook16, dwHookData );
1229 /***********************************************************************
1230 * GetDCHook (GDI.191)
1232 DWORD WINAPI GetDCHook16( HDC16 hdc16, FARPROC16 *phookProc )
1234 HDC hdc = HDC_32( hdc16 );
1235 DC *dc = DC_GetDCPtr( hdc );
1239 *phookProc = dc->hookProc;
1240 ret = dc->dwHookData;
1241 GDI_ReleaseObj( hdc );
1246 /***********************************************************************
1247 * SetHookFlags (GDI.192)
1249 WORD WINAPI SetHookFlags16(HDC16 hdc16, WORD flags)
1251 HDC hdc = HDC_32( hdc16 );
1252 DC *dc = DC_GetDCPtr( hdc );
1256 WORD wRet = dc->flags & DC_DIRTY;
1258 /* "Undocumented Windows" info is slightly confusing.
1261 TRACE("hDC %p, flags %04x\n",hdc,flags);
1263 if( flags & DCHF_INVALIDATEVISRGN )
1264 dc->flags |= DC_DIRTY;
1265 else if( flags & DCHF_VALIDATEVISRGN || !flags )
1266 dc->flags &= ~DC_DIRTY;
1267 GDI_ReleaseObj( hdc );
1273 /***********************************************************************
1274 * SetICMMode (GDI32.@)
1276 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1278 /*FIXME Asuming that ICM is always off, and cannot be turned on */
1279 if (iEnableICM == ICM_OFF) return ICM_OFF;
1280 if (iEnableICM == ICM_ON) return 0;
1281 if (iEnableICM == ICM_QUERY) return ICM_OFF;
1285 /***********************************************************************
1286 * GetDeviceGammaRamp (GDI32.@)
1288 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1291 DC *dc = DC_GetDCPtr( hDC );
1295 if (dc->funcs->pGetDeviceGammaRamp)
1296 ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
1297 GDI_ReleaseObj( hDC );
1302 /***********************************************************************
1303 * SetDeviceGammaRamp (GDI32.@)
1305 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1308 DC *dc = DC_GetDCPtr( hDC );
1312 if (dc->funcs->pSetDeviceGammaRamp)
1313 ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
1314 GDI_ReleaseObj( hDC );
1319 /***********************************************************************
1320 * GetColorSpace (GDI32.@)
1322 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1324 /*FIXME Need to to whatever GetColorSpace actually does */
1328 /***********************************************************************
1329 * CreateColorSpaceA (GDI32.@)
1331 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1337 /***********************************************************************
1338 * CreateColorSpaceW (GDI32.@)
1340 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1346 /***********************************************************************
1347 * DeleteColorSpace (GDI32.@)
1349 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1356 /***********************************************************************
1357 * SetColorSpace (GDI32.@)
1359 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1366 /***********************************************************************
1367 * GetBoundsRect (GDI.194)
1369 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1371 return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1374 /***********************************************************************
1375 * GetBoundsRect (GDI32.@)
1377 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1379 FIXME("(): stub\n");
1380 return DCB_RESET; /* bounding rectangle always empty */
1383 /***********************************************************************
1384 * SetBoundsRect (GDI.193)
1386 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1388 if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1389 FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1391 return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1394 /***********************************************************************
1395 * SetBoundsRect (GDI32.@)
1397 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1399 FIXME("(): stub\n");
1400 return DCB_DISABLE; /* bounding rectangle always empty */
1404 /***********************************************************************
1405 * GetRelAbs (GDI32.@)
1407 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1410 DC *dc = DC_GetDCPtr( hdc );
1411 if (dc) ret = dc->relAbsMode;
1412 GDI_ReleaseObj( hdc );
1416 /***********************************************************************
1417 * GetLayout (GDI32.@)
1419 * Gets left->right or right->left text layout flags of a dc.
1420 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1423 DWORD WINAPI GetLayout(HDC hdc)
1425 FIXME("(%p): stub\n", hdc);
1426 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1430 /***********************************************************************
1431 * SetLayout (GDI32.@)
1433 * Sets left->right or right->left text layout flags of a dc.
1434 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1437 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1439 FIXME("(%p,%08lx): stub\n", hdc, layout);
1440 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1444 /***********************************************************************
1445 * SetDCBrushColor (GDI32.@)
1447 * Sets the current device context (DC) brush color to the specified
1448 * color value. If the device cannot represent the specified color
1449 * value, the color is set to the nearest physical color.
1452 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
1454 FIXME("(%p, %08lx): stub\n", hdc, crColor);
1455 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1459 /***********************************************************************
1460 * SetVirtualResolution (GDI32.@)
1462 * Undocumented on msdn. Called when PowerPoint XP saves a file.
1464 DWORD WINAPI SetVirtualResolution(HDC hdc, DWORD dw2, DWORD dw3, DWORD dw4, DWORD dw5)
1466 FIXME("(%p %08lx %08lx %08lx %08lx): stub!\n", hdc, dw2, dw3, dw4, dw5);