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
29 #include "wine/winuser16.h"
33 #include "wine/debug.h"
35 WINE_DEFAULT_DEBUG_CHANNEL(dc
);
37 /* ### start build ### */
38 extern WORD CALLBACK
GDI_CallTo16_word_wwll(FARPROC16
,WORD
,WORD
,LONG
,LONG
);
39 /* ### stop build ### */
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
)
61 if (!(dc
= GDI_AllocObject( sizeof(*dc
), 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
) == METAFILE_DC_MAGIC
) ||
139 (GDIMAGIC(ptr
->wMagic
) == ENHMETAFILE_DC_MAGIC
))
141 GDI_ReleaseObj( hdc
);
142 SetLastError( ERROR_INVALID_HANDLE
);
146 /***********************************************************************
149 * Retrieve a DC ptr while making sure the visRgn is updated.
150 * This function may call up to USER so the GDI lock should _not_
151 * be held when calling it.
153 DC
*DC_GetDCUpdate( HDC hdc
)
155 DC
*dc
= DC_GetDCPtr( hdc
);
156 if (!dc
) return NULL
;
157 while (dc
->flags
& DC_DIRTY
)
159 dc
->flags
&= ~DC_DIRTY
;
160 if (!(dc
->flags
& (DC_SAVED
| DC_MEMORY
)))
162 DCHOOKPROC proc
= dc
->hookThunk
;
165 DWORD data
= dc
->dwHookData
;
166 GDI_ReleaseObj( hdc
);
167 proc( HDC_16(hdc
), DCHC_INVALIDVISRGN
, data
, 0 );
168 if (!(dc
= DC_GetDCPtr( hdc
))) break;
169 /* otherwise restart the loop in case it became dirty again in the meantime */
177 /***********************************************************************
180 static BOOL
DC_DeleteObject( HGDIOBJ handle
, void *obj
)
182 GDI_ReleaseObj( handle
);
183 return DeleteDC( handle
);
187 /***********************************************************************
190 * Setup device-specific DC values for a newly created DC.
192 void DC_InitDC( DC
* dc
)
194 if (dc
->funcs
->pRealizeDefaultPalette
) dc
->funcs
->pRealizeDefaultPalette( dc
->physDev
);
195 SetTextColor( dc
->hSelf
, dc
->textColor
);
196 SetBkColor( dc
->hSelf
, dc
->backgroundColor
);
197 SelectObject( dc
->hSelf
, dc
->hPen
);
198 SelectObject( dc
->hSelf
, dc
->hBrush
);
199 SelectObject( dc
->hSelf
, dc
->hFont
);
200 CLIPPING_UpdateGCRegion( dc
);
204 /***********************************************************************
207 * Computes the inverse of the transformation xformSrc and stores it to
208 * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
211 static BOOL
DC_InvertXform( const XFORM
*xformSrc
, XFORM
*xformDest
)
215 determinant
= xformSrc
->eM11
*xformSrc
->eM22
-
216 xformSrc
->eM12
*xformSrc
->eM21
;
217 if (determinant
> -1e-12 && determinant
< 1e-12)
220 xformDest
->eM11
= xformSrc
->eM22
/ determinant
;
221 xformDest
->eM12
= -xformSrc
->eM12
/ determinant
;
222 xformDest
->eM21
= -xformSrc
->eM21
/ determinant
;
223 xformDest
->eM22
= xformSrc
->eM11
/ determinant
;
224 xformDest
->eDx
= -xformSrc
->eDx
* xformDest
->eM11
-
225 xformSrc
->eDy
* xformDest
->eM21
;
226 xformDest
->eDy
= -xformSrc
->eDx
* xformDest
->eM12
-
227 xformSrc
->eDy
* xformDest
->eM22
;
233 /***********************************************************************
236 * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
237 * fields of the specified DC by creating a transformation that
238 * represents the current mapping mode and combining it with the DC's
239 * world transform. This function should be called whenever the
240 * parameters associated with the mapping mode (window and viewport
241 * extents and origins) or the world transform change.
243 void DC_UpdateXforms( DC
*dc
)
245 XFORM xformWnd2Vport
;
246 FLOAT scaleX
, scaleY
;
248 /* Construct a transformation to do the window-to-viewport conversion */
249 scaleX
= (FLOAT
)dc
->vportExtX
/ (FLOAT
)dc
->wndExtX
;
250 scaleY
= (FLOAT
)dc
->vportExtY
/ (FLOAT
)dc
->wndExtY
;
251 xformWnd2Vport
.eM11
= scaleX
;
252 xformWnd2Vport
.eM12
= 0.0;
253 xformWnd2Vport
.eM21
= 0.0;
254 xformWnd2Vport
.eM22
= scaleY
;
255 xformWnd2Vport
.eDx
= (FLOAT
)dc
->vportOrgX
-
256 scaleX
* (FLOAT
)dc
->wndOrgX
;
257 xformWnd2Vport
.eDy
= (FLOAT
)dc
->vportOrgY
-
258 scaleY
* (FLOAT
)dc
->wndOrgY
;
260 /* Combine with the world transformation */
261 CombineTransform( &dc
->xformWorld2Vport
, &dc
->xformWorld2Wnd
,
264 /* Create inverse of world-to-viewport transformation */
265 dc
->vport2WorldValid
= DC_InvertXform( &dc
->xformWorld2Vport
,
266 &dc
->xformVport2World
);
270 /***********************************************************************
271 * GetDCState (Not a Windows API)
273 HDC WINAPI
GetDCState( HDC hdc
)
278 if (!(dc
= DC_GetDCPtr( hdc
))) return 0;
279 if (!(newdc
= GDI_AllocObject( sizeof(DC
), DC_MAGIC
, &handle
, &dc_funcs
)))
281 GDI_ReleaseObj( hdc
);
284 TRACE("(%p): returning %p\n", hdc
, handle
);
286 newdc
->flags
= dc
->flags
| DC_SAVED
;
287 newdc
->hPen
= dc
->hPen
;
288 newdc
->hBrush
= dc
->hBrush
;
289 newdc
->hFont
= dc
->hFont
;
290 newdc
->hBitmap
= dc
->hBitmap
;
291 newdc
->hDevice
= dc
->hDevice
;
292 newdc
->hPalette
= dc
->hPalette
;
293 newdc
->totalExtent
= dc
->totalExtent
;
294 newdc
->bitsPerPixel
= dc
->bitsPerPixel
;
295 newdc
->ROPmode
= dc
->ROPmode
;
296 newdc
->polyFillMode
= dc
->polyFillMode
;
297 newdc
->stretchBltMode
= dc
->stretchBltMode
;
298 newdc
->relAbsMode
= dc
->relAbsMode
;
299 newdc
->backgroundMode
= dc
->backgroundMode
;
300 newdc
->backgroundColor
= dc
->backgroundColor
;
301 newdc
->textColor
= dc
->textColor
;
302 newdc
->brushOrgX
= dc
->brushOrgX
;
303 newdc
->brushOrgY
= dc
->brushOrgY
;
304 newdc
->textAlign
= dc
->textAlign
;
305 newdc
->charExtra
= dc
->charExtra
;
306 newdc
->breakTotalExtra
= dc
->breakTotalExtra
;
307 newdc
->breakCount
= dc
->breakCount
;
308 newdc
->breakExtra
= dc
->breakExtra
;
309 newdc
->breakRem
= dc
->breakRem
;
310 newdc
->MapMode
= dc
->MapMode
;
311 newdc
->GraphicsMode
= dc
->GraphicsMode
;
312 newdc
->CursPosX
= dc
->CursPosX
;
313 newdc
->CursPosY
= dc
->CursPosY
;
314 newdc
->ArcDirection
= dc
->ArcDirection
;
315 newdc
->xformWorld2Wnd
= dc
->xformWorld2Wnd
;
316 newdc
->xformWorld2Vport
= dc
->xformWorld2Vport
;
317 newdc
->xformVport2World
= dc
->xformVport2World
;
318 newdc
->vport2WorldValid
= dc
->vport2WorldValid
;
319 newdc
->wndOrgX
= dc
->wndOrgX
;
320 newdc
->wndOrgY
= dc
->wndOrgY
;
321 newdc
->wndExtX
= dc
->wndExtX
;
322 newdc
->wndExtY
= dc
->wndExtY
;
323 newdc
->vportOrgX
= dc
->vportOrgX
;
324 newdc
->vportOrgY
= dc
->vportOrgY
;
325 newdc
->vportExtX
= dc
->vportExtX
;
326 newdc
->vportExtY
= dc
->vportExtY
;
328 newdc
->hSelf
= (HDC
)handle
;
329 newdc
->saveLevel
= 0;
331 PATH_InitGdiPath( &newdc
->path
);
333 newdc
->pAbortProc
= NULL
;
334 newdc
->hookThunk
= NULL
;
337 /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
339 newdc
->hGCClipRgn
= newdc
->hVisRgn
= 0;
342 newdc
->hClipRgn
= CreateRectRgn( 0, 0, 0, 0 );
343 CombineRgn( newdc
->hClipRgn
, dc
->hClipRgn
, 0, RGN_COPY
);
349 newdc
->gdiFont
= dc
->gdiFont
;
353 GDI_ReleaseObj( handle
);
354 GDI_ReleaseObj( hdc
);
359 /***********************************************************************
360 * SetDCState (Not a Windows API)
362 void WINAPI
SetDCState( HDC hdc
, HDC hdcs
)
366 if (!(dc
= DC_GetDCUpdate( hdc
))) return;
367 if (!(dcs
= DC_GetDCPtr( hdcs
)))
369 GDI_ReleaseObj( hdc
);
372 if (!dcs
->flags
& DC_SAVED
)
374 GDI_ReleaseObj( hdc
);
375 GDI_ReleaseObj( hdcs
);
378 TRACE("%p %p\n", hdc
, hdcs
);
380 dc
->flags
= dcs
->flags
& ~(DC_SAVED
| DC_DIRTY
);
381 dc
->hDevice
= dcs
->hDevice
;
382 dc
->totalExtent
= dcs
->totalExtent
;
383 dc
->ROPmode
= dcs
->ROPmode
;
384 dc
->polyFillMode
= dcs
->polyFillMode
;
385 dc
->stretchBltMode
= dcs
->stretchBltMode
;
386 dc
->relAbsMode
= dcs
->relAbsMode
;
387 dc
->backgroundMode
= dcs
->backgroundMode
;
388 dc
->backgroundColor
= dcs
->backgroundColor
;
389 dc
->textColor
= dcs
->textColor
;
390 dc
->brushOrgX
= dcs
->brushOrgX
;
391 dc
->brushOrgY
= dcs
->brushOrgY
;
392 dc
->textAlign
= dcs
->textAlign
;
393 dc
->charExtra
= dcs
->charExtra
;
394 dc
->breakTotalExtra
= dcs
->breakTotalExtra
;
395 dc
->breakCount
= dcs
->breakCount
;
396 dc
->breakExtra
= dcs
->breakExtra
;
397 dc
->breakRem
= dcs
->breakRem
;
398 dc
->MapMode
= dcs
->MapMode
;
399 dc
->GraphicsMode
= dcs
->GraphicsMode
;
400 dc
->CursPosX
= dcs
->CursPosX
;
401 dc
->CursPosY
= dcs
->CursPosY
;
402 dc
->ArcDirection
= dcs
->ArcDirection
;
403 dc
->xformWorld2Wnd
= dcs
->xformWorld2Wnd
;
404 dc
->xformWorld2Vport
= dcs
->xformWorld2Vport
;
405 dc
->xformVport2World
= dcs
->xformVport2World
;
406 dc
->vport2WorldValid
= dcs
->vport2WorldValid
;
408 dc
->wndOrgX
= dcs
->wndOrgX
;
409 dc
->wndOrgY
= dcs
->wndOrgY
;
410 dc
->wndExtX
= dcs
->wndExtX
;
411 dc
->wndExtY
= dcs
->wndExtY
;
412 dc
->vportOrgX
= dcs
->vportOrgX
;
413 dc
->vportOrgY
= dcs
->vportOrgY
;
414 dc
->vportExtX
= dcs
->vportExtX
;
415 dc
->vportExtY
= dcs
->vportExtY
;
417 if (!(dc
->flags
& DC_MEMORY
)) dc
->bitsPerPixel
= dcs
->bitsPerPixel
;
421 if (!dc
->hClipRgn
) dc
->hClipRgn
= CreateRectRgn( 0, 0, 0, 0 );
422 CombineRgn( dc
->hClipRgn
, dcs
->hClipRgn
, 0, RGN_COPY
);
426 if (dc
->hClipRgn
) DeleteObject( dc
->hClipRgn
);
429 CLIPPING_UpdateGCRegion( dc
);
431 SelectObject( hdc
, dcs
->hBitmap
);
432 SelectObject( hdc
, dcs
->hBrush
);
433 SelectObject( hdc
, dcs
->hFont
);
434 SelectObject( hdc
, dcs
->hPen
);
435 SetBkColor( hdc
, dcs
->backgroundColor
);
436 SetTextColor( hdc
, dcs
->textColor
);
437 GDISelectPalette( hdc
, dcs
->hPalette
, FALSE
);
438 GDI_ReleaseObj( hdcs
);
439 GDI_ReleaseObj( hdc
);
443 /***********************************************************************
444 * GetDCState (GDI.179)
446 HDC16 WINAPI
GetDCState16( HDC16 hdc
)
448 return HDC_16( GetDCState( HDC_32(hdc
) ));
452 /***********************************************************************
453 * SetDCState (GDI.180)
455 void WINAPI
SetDCState16( HDC16 hdc
, HDC16 hdcs
)
457 SetDCState( HDC_32(hdc
), HDC_32(hdcs
) );
461 /***********************************************************************
464 INT WINAPI
SaveDC( HDC hdc
)
470 dc
= DC_GetDCPtr( hdc
);
473 if(dc
->funcs
->pSaveDC
)
475 ret
= dc
->funcs
->pSaveDC( dc
->physDev
);
476 GDI_ReleaseObj( hdc
);
480 if (!(hdcs
= GetDCState( hdc
)))
482 GDI_ReleaseObj( hdc
);
485 dcs
= DC_GetDCPtr( hdcs
);
487 /* Copy path. The reason why path saving / restoring is in SaveDC/
488 * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
489 * functions are only in Win16 (which doesn't have paths) and that
490 * SetDCState doesn't allow us to signal an error (which can happen
491 * when copying paths).
493 if (!PATH_AssignGdiPath( &dcs
->path
, &dc
->path
))
495 GDI_ReleaseObj( hdc
);
496 GDI_ReleaseObj( hdcs
);
501 dcs
->header
.hNext
= dc
->header
.hNext
;
502 dc
->header
.hNext
= HDC_16(hdcs
);
503 TRACE("(%p): returning %d\n", hdc
, dc
->saveLevel
+1 );
504 ret
= ++dc
->saveLevel
;
505 GDI_ReleaseObj( hdcs
);
506 GDI_ReleaseObj( hdc
);
511 /***********************************************************************
512 * RestoreDC (GDI32.@)
514 BOOL WINAPI
RestoreDC( HDC hdc
, INT level
)
519 TRACE("%p %d\n", hdc
, level
);
520 dc
= DC_GetDCUpdate( hdc
);
521 if(!dc
) return FALSE
;
522 if(dc
->funcs
->pRestoreDC
)
524 success
= dc
->funcs
->pRestoreDC( dc
->physDev
, level
);
525 GDI_ReleaseObj( hdc
);
529 if (level
== -1) level
= dc
->saveLevel
;
531 /* This pair of checks disagrees with MSDN "Platform SDK:
532 Windows GDI" July 2000 which says all negative values
533 for level will be interpreted as an instance relative
534 to the current state. Restricting it to just -1 does
536 || (level
> dc
->saveLevel
))
538 GDI_ReleaseObj( hdc
);
543 while (dc
->saveLevel
>= level
)
545 HDC hdcs
= HDC_32(dc
->header
.hNext
);
546 if (!(dcs
= DC_GetDCPtr( hdcs
)))
548 GDI_ReleaseObj( hdc
);
551 dc
->header
.hNext
= dcs
->header
.hNext
;
552 if (--dc
->saveLevel
< level
)
554 SetDCState( hdc
, hdcs
);
555 if (!PATH_AssignGdiPath( &dc
->path
, &dcs
->path
))
556 /* FIXME: This might not be quite right, since we're
557 * returning FALSE but still destroying the saved DC state */
560 GDI_ReleaseObj( hdcs
);
561 GDI_ReleaseObj( hdc
);
563 if (!(dc
= DC_GetDCPtr( hdc
))) return FALSE
;
565 GDI_ReleaseObj( hdc
);
570 /***********************************************************************
571 * CreateDCA (GDI32.@)
573 HDC WINAPI
CreateDCA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
574 const DEVMODEA
*initData
)
578 const DC_FUNCTIONS
*funcs
;
583 if (!device
|| !DRIVER_GetDriverName( device
, buf
, sizeof(buf
) ))
585 if (!driver
) return 0;
589 if (!(funcs
= DRIVER_load_driver( buf
)))
591 ERR( "no driver found for %s\n", buf
);
594 if (!(dc
= DC_AllocDC( funcs
)))
596 DRIVER_release_driver( funcs
);
602 TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
603 debugstr_a(driver
), debugstr_a(device
), debugstr_a(output
), dc
->hSelf
);
605 if (dc
->funcs
->pCreateDC
&&
606 !dc
->funcs
->pCreateDC( dc
, &dc
->physDev
, buf
, device
, output
, initData
))
608 WARN("creation aborted by device\n" );
609 GDI_FreeObject( dc
->hSelf
, dc
);
610 DRIVER_release_driver( funcs
);
614 dc
->totalExtent
.left
= 0;
615 dc
->totalExtent
.top
= 0;
616 dc
->totalExtent
.right
= GetDeviceCaps( dc
->hSelf
, HORZRES
);
617 dc
->totalExtent
.bottom
= GetDeviceCaps( dc
->hSelf
, VERTRES
);
618 dc
->hVisRgn
= CreateRectRgnIndirect( &dc
->totalExtent
);
622 GDI_ReleaseObj( hdc
);
627 /***********************************************************************
628 * CreateDCW (GDI32.@)
630 HDC WINAPI
CreateDCW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
631 const DEVMODEW
*initData
)
633 LPSTR driverA
= HEAP_strdupWtoA( GetProcessHeap(), 0, driver
);
634 LPSTR deviceA
= HEAP_strdupWtoA( GetProcessHeap(), 0, device
);
635 LPSTR outputA
= HEAP_strdupWtoA( GetProcessHeap(), 0, output
);
636 HDC res
= CreateDCA( driverA
, deviceA
, outputA
,
637 (const DEVMODEA
*)initData
/*FIXME*/ );
638 HeapFree( GetProcessHeap(), 0, driverA
);
639 HeapFree( GetProcessHeap(), 0, deviceA
);
640 HeapFree( GetProcessHeap(), 0, outputA
);
645 /***********************************************************************
646 * CreateICA (GDI32.@)
648 HDC WINAPI
CreateICA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
649 const DEVMODEA
* initData
)
651 /* Nothing special yet for ICs */
652 return CreateDCA( driver
, device
, output
, initData
);
656 /***********************************************************************
657 * CreateICW (GDI32.@)
659 HDC WINAPI
CreateICW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
660 const DEVMODEW
* initData
)
662 /* Nothing special yet for ICs */
663 return CreateDCW( driver
, device
, output
, initData
);
667 /***********************************************************************
668 * CreateCompatibleDC (GDI32.@)
670 HDC WINAPI
CreateCompatibleDC( HDC hdc
)
673 const DC_FUNCTIONS
*funcs
;
677 if ((origDC
= GDI_GetObjPtr( hdc
, DC_MAGIC
)))
679 funcs
= origDC
->funcs
;
680 GDI_ReleaseObj( hdc
); /* can't hold the lock while loading the driver */
681 funcs
= DRIVER_get_driver( funcs
);
683 else funcs
= DRIVER_load_driver( "DISPLAY" );
685 if (!funcs
) return 0;
687 if (!(dc
= DC_AllocDC( funcs
)))
689 DRIVER_release_driver( funcs
);
693 TRACE("(%p): returning %p\n", hdc
, dc
->hSelf
);
695 dc
->flags
= DC_MEMORY
;
696 dc
->bitsPerPixel
= 1;
697 dc
->hBitmap
= GetStockObject( DEFAULT_BITMAP
);
699 /* Copy the driver-specific physical device info into
700 * the new DC. The driver may use this read-only info
701 * while creating the compatible DC below. */
702 if ((origDC
= GDI_GetObjPtr( hdc
, DC_MAGIC
))) dc
->physDev
= origDC
->physDev
;
704 if (dc
->funcs
->pCreateDC
&&
705 !dc
->funcs
->pCreateDC( dc
, &dc
->physDev
, NULL
, NULL
, NULL
, NULL
))
707 WARN("creation aborted by device\n");
708 GDI_FreeObject( dc
->hSelf
, dc
);
709 if (origDC
) GDI_ReleaseObj( hdc
);
710 DRIVER_release_driver( funcs
);
714 dc
->totalExtent
.left
= 0;
715 dc
->totalExtent
.top
= 0;
716 dc
->totalExtent
.right
= 1; /* default bitmap is 1x1 */
717 dc
->totalExtent
.bottom
= 1;
718 dc
->hVisRgn
= CreateRectRgnIndirect( &dc
->totalExtent
);
721 GDI_ReleaseObj( dc
->hSelf
);
722 if (origDC
) GDI_ReleaseObj( hdc
);
727 /***********************************************************************
730 BOOL WINAPI
DeleteDC( HDC hdc
)
732 const DC_FUNCTIONS
*funcs
= NULL
;
739 if (!(dc
= GDI_GetObjPtr( hdc
, DC_MAGIC
))) return FALSE
;
741 /* Call hook procedure to check whether is it OK to delete this DC */
742 if (dc
->hookThunk
&& !(dc
->flags
& (DC_SAVED
| DC_MEMORY
)))
744 DCHOOKPROC proc
= dc
->hookThunk
;
747 DWORD data
= dc
->dwHookData
;
748 GDI_ReleaseObj( hdc
);
749 if (!proc( HDC_16(hdc
), DCHC_DELETEDC
, data
, 0 )) return FALSE
;
750 if (!(dc
= DC_GetDCPtr( hdc
))) return TRUE
; /* deleted by the hook */
754 while (dc
->saveLevel
)
757 HDC hdcs
= HDC_32(dc
->header
.hNext
);
758 if (!(dcs
= DC_GetDCPtr( hdcs
))) break;
759 dc
->header
.hNext
= dcs
->header
.hNext
;
761 if (dcs
->hClipRgn
) DeleteObject( dcs
->hClipRgn
);
762 if (dcs
->hVisRgn
) DeleteObject( dcs
->hVisRgn
);
763 if (dcs
->hGCClipRgn
) DeleteObject( dcs
->hGCClipRgn
);
764 PATH_DestroyGdiPath(&dcs
->path
);
765 GDI_FreeObject( hdcs
, dcs
);
768 if (!(dc
->flags
& DC_SAVED
))
770 SelectObject( hdc
, GetStockObject(BLACK_PEN
) );
771 SelectObject( hdc
, GetStockObject(WHITE_BRUSH
) );
772 SelectObject( hdc
, GetStockObject(SYSTEM_FONT
) );
773 SelectObject( hdc
, GetStockObject(DEFAULT_BITMAP
) );
775 if (dc
->funcs
->pDeleteDC
) dc
->funcs
->pDeleteDC(dc
->physDev
);
779 if (dc
->hClipRgn
) DeleteObject( dc
->hClipRgn
);
780 if (dc
->hVisRgn
) DeleteObject( dc
->hVisRgn
);
781 if (dc
->hGCClipRgn
) DeleteObject( dc
->hGCClipRgn
);
782 PATH_DestroyGdiPath(&dc
->path
);
784 GDI_FreeObject( hdc
, dc
);
785 if (funcs
) DRIVER_release_driver( funcs
); /* do that after releasing the GDI lock */
790 /***********************************************************************
793 HDC WINAPI
ResetDCA( HDC hdc
, const DEVMODEA
*devmode
)
798 if ((dc
= DC_GetDCPtr( hdc
)))
800 if (dc
->funcs
->pResetDC
) ret
= dc
->funcs
->pResetDC( dc
->physDev
, devmode
);
801 GDI_ReleaseObj( hdc
);
807 /***********************************************************************
810 HDC WINAPI
ResetDCW( HDC hdc
, const DEVMODEW
*devmode
)
812 return ResetDCA(hdc
, (const DEVMODEA
*)devmode
); /* FIXME */
816 /***********************************************************************
817 * GetDeviceCaps (GDI32.@)
819 INT WINAPI
GetDeviceCaps( HDC hdc
, INT cap
)
824 if ((dc
= DC_GetDCPtr( hdc
)))
826 if (dc
->funcs
->pGetDeviceCaps
) ret
= dc
->funcs
->pGetDeviceCaps( dc
->physDev
, cap
);
827 GDI_ReleaseObj( hdc
);
833 /***********************************************************************
834 * SetBkColor (GDI32.@)
836 COLORREF WINAPI
SetBkColor( HDC hdc
, COLORREF color
)
839 DC
* dc
= DC_GetDCPtr( hdc
);
841 if (!dc
) return CLR_INVALID
;
842 oldColor
= dc
->backgroundColor
;
843 if (dc
->funcs
->pSetBkColor
)
845 color
= dc
->funcs
->pSetBkColor(dc
->physDev
, color
);
846 if (color
== CLR_INVALID
) /* don't change it */
849 oldColor
= CLR_INVALID
;
852 dc
->backgroundColor
= color
;
853 GDI_ReleaseObj( hdc
);
858 /***********************************************************************
859 * SetTextColor (GDI32.@)
861 COLORREF WINAPI
SetTextColor( HDC hdc
, COLORREF color
)
864 DC
* dc
= DC_GetDCPtr( hdc
);
866 if (!dc
) return CLR_INVALID
;
867 oldColor
= dc
->textColor
;
868 if (dc
->funcs
->pSetTextColor
)
870 color
= dc
->funcs
->pSetTextColor(dc
->physDev
, color
);
871 if (color
== CLR_INVALID
) /* don't change it */
874 oldColor
= CLR_INVALID
;
877 dc
->textColor
= color
;
878 GDI_ReleaseObj( hdc
);
883 /***********************************************************************
884 * SetTextAlign (GDI32.@)
886 UINT WINAPI
SetTextAlign( HDC hdc
, UINT align
)
889 DC
*dc
= DC_GetDCPtr( hdc
);
891 if (dc
->funcs
->pSetTextAlign
)
892 prevAlign
= dc
->funcs
->pSetTextAlign(dc
->physDev
, align
);
894 prevAlign
= dc
->textAlign
;
895 dc
->textAlign
= align
;
897 GDI_ReleaseObj( hdc
);
901 /***********************************************************************
902 * GetDCOrgEx (GDI32.@)
904 BOOL WINAPI
GetDCOrgEx( HDC hDC
, LPPOINT lpp
)
908 if (!lpp
) return FALSE
;
909 if (!(dc
= DC_GetDCPtr( hDC
))) return FALSE
;
912 if (dc
->funcs
->pGetDCOrgEx
) dc
->funcs
->pGetDCOrgEx( dc
->physDev
, lpp
);
913 GDI_ReleaseObj( hDC
);
918 /***********************************************************************
921 DWORD WINAPI
SetDCOrg16( HDC16 hdc16
, INT16 x
, INT16 y
)
924 HDC hdc
= HDC_32( hdc16
);
925 DC
*dc
= DC_GetDCPtr( hdc
);
927 if (dc
->funcs
->pSetDCOrg
) prevOrg
= dc
->funcs
->pSetDCOrg( dc
->physDev
, x
, y
);
928 GDI_ReleaseObj( hdc
);
933 /***********************************************************************
934 * SetGraphicsMode (GDI32.@)
936 INT WINAPI
SetGraphicsMode( HDC hdc
, INT mode
)
939 DC
*dc
= DC_GetDCPtr( hdc
);
941 /* One would think that setting the graphics mode to GM_COMPATIBLE
942 * would also reset the world transformation matrix to the unity
943 * matrix. However, in Windows, this is not the case. This doesn't
944 * make a lot of sense to me, but that's the way it is.
947 if ((mode
> 0) || (mode
<= GM_LAST
))
949 ret
= dc
->GraphicsMode
;
950 dc
->GraphicsMode
= mode
;
952 GDI_ReleaseObj( hdc
);
957 /***********************************************************************
958 * SetArcDirection (GDI32.@)
960 INT WINAPI
SetArcDirection( HDC hdc
, INT nDirection
)
963 INT nOldDirection
= 0;
965 if (nDirection
!=AD_COUNTERCLOCKWISE
&& nDirection
!=AD_CLOCKWISE
)
967 SetLastError(ERROR_INVALID_PARAMETER
);
971 if ((dc
= DC_GetDCPtr( hdc
)))
973 nOldDirection
= dc
->ArcDirection
;
974 dc
->ArcDirection
= nDirection
;
975 GDI_ReleaseObj( hdc
);
977 return nOldDirection
;
981 /***********************************************************************
982 * GetWorldTransform (GDI32.@)
984 BOOL WINAPI
GetWorldTransform( HDC hdc
, LPXFORM xform
)
987 if (!xform
) return FALSE
;
988 if (!(dc
= DC_GetDCPtr( hdc
))) return FALSE
;
989 *xform
= dc
->xformWorld2Wnd
;
990 GDI_ReleaseObj( hdc
);
995 /***********************************************************************
996 * SetWorldTransform (GDI32.@)
998 BOOL WINAPI
SetWorldTransform( HDC hdc
, const XFORM
*xform
)
1001 DC
*dc
= DC_GetDCPtr( hdc
);
1003 if (!dc
) return FALSE
;
1004 if (!xform
) goto done
;
1006 /* Check that graphics mode is GM_ADVANCED */
1007 if (dc
->GraphicsMode
!=GM_ADVANCED
) goto done
;
1009 dc
->xformWorld2Wnd
= *xform
;
1010 DC_UpdateXforms( dc
);
1013 GDI_ReleaseObj( hdc
);
1018 /****************************************************************************
1019 * ModifyWorldTransform [GDI32.@]
1020 * Modifies the world transformation for a device context.
1023 * hdc [I] Handle to device context
1024 * xform [I] XFORM structure that will be used to modify the world
1026 * iMode [I] Specifies in what way to modify the world transformation
1029 * Resets the world transformation to the identity matrix.
1030 * The parameter xform is ignored.
1032 * Multiplies xform into the world transformation matrix from
1035 * Multiplies xform into the world transformation matrix from
1040 BOOL WINAPI
ModifyWorldTransform( HDC hdc
, const XFORM
*xform
,
1044 DC
*dc
= DC_GetDCPtr( hdc
);
1046 /* Check for illegal parameters */
1047 if (!dc
) return FALSE
;
1048 if (!xform
) goto done
;
1050 /* Check that graphics mode is GM_ADVANCED */
1051 if (dc
->GraphicsMode
!=GM_ADVANCED
) goto done
;
1056 dc
->xformWorld2Wnd
.eM11
= 1.0f
;
1057 dc
->xformWorld2Wnd
.eM12
= 0.0f
;
1058 dc
->xformWorld2Wnd
.eM21
= 0.0f
;
1059 dc
->xformWorld2Wnd
.eM22
= 1.0f
;
1060 dc
->xformWorld2Wnd
.eDx
= 0.0f
;
1061 dc
->xformWorld2Wnd
.eDy
= 0.0f
;
1063 case MWT_LEFTMULTIPLY
:
1064 CombineTransform( &dc
->xformWorld2Wnd
, xform
,
1065 &dc
->xformWorld2Wnd
);
1067 case MWT_RIGHTMULTIPLY
:
1068 CombineTransform( &dc
->xformWorld2Wnd
, &dc
->xformWorld2Wnd
,
1075 DC_UpdateXforms( dc
);
1078 GDI_ReleaseObj( hdc
);
1083 /****************************************************************************
1084 * CombineTransform [GDI32.@]
1085 * Combines two transformation matrices.
1088 * xformResult [O] Stores the result of combining the two matrices
1089 * xform1 [I] Specifies the first matrix to apply
1090 * xform2 [I] Specifies the second matrix to apply
1093 * The same matrix can be passed in for more than one of the parameters.
1097 BOOL WINAPI
CombineTransform( LPXFORM xformResult
, const XFORM
*xform1
,
1098 const XFORM
*xform2
)
1102 /* Check for illegal parameters */
1103 if (!xformResult
|| !xform1
|| !xform2
)
1106 /* Create the result in a temporary XFORM, since xformResult may be
1107 * equal to xform1 or xform2 */
1108 xformTemp
.eM11
= xform1
->eM11
* xform2
->eM11
+
1109 xform1
->eM12
* xform2
->eM21
;
1110 xformTemp
.eM12
= xform1
->eM11
* xform2
->eM12
+
1111 xform1
->eM12
* xform2
->eM22
;
1112 xformTemp
.eM21
= xform1
->eM21
* xform2
->eM11
+
1113 xform1
->eM22
* xform2
->eM21
;
1114 xformTemp
.eM22
= xform1
->eM21
* xform2
->eM12
+
1115 xform1
->eM22
* xform2
->eM22
;
1116 xformTemp
.eDx
= xform1
->eDx
* xform2
->eM11
+
1117 xform1
->eDy
* xform2
->eM21
+
1119 xformTemp
.eDy
= xform1
->eDx
* xform2
->eM12
+
1120 xform1
->eDy
* xform2
->eM22
+
1123 /* Copy the result to xformResult */
1124 *xformResult
= xformTemp
;
1130 /***********************************************************************
1131 * SetDCHook (GDI32.@)
1133 * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1135 BOOL WINAPI
SetDCHook( HDC hdc
, DCHOOKPROC hookProc
, DWORD dwHookData
)
1137 DC
*dc
= DC_GetDCPtr( hdc
);
1139 if (!dc
) return FALSE
;
1140 dc
->dwHookData
= dwHookData
;
1141 dc
->hookThunk
= hookProc
;
1142 GDI_ReleaseObj( hdc
);
1147 /* relay function to call the 16-bit DC hook proc */
1148 static BOOL16 WINAPI
call_dc_hook16( HDC16 hdc16
, WORD code
, DWORD data
, LPARAM lParam
)
1150 FARPROC16 proc
= NULL
;
1151 HDC hdc
= HDC_32( hdc16
);
1152 DC
*dc
= DC_GetDCPtr( hdc
);
1153 if (!dc
) return FALSE
;
1154 proc
= dc
->hookProc
;
1155 GDI_ReleaseObj( hdc
);
1156 if (!proc
) return FALSE
;
1157 return GDI_CallTo16_word_wwll( proc
, hdc16
, code
, data
, lParam
);
1160 /***********************************************************************
1161 * SetDCHook (GDI.190)
1163 BOOL16 WINAPI
SetDCHook16( HDC16 hdc16
, FARPROC16 hookProc
, DWORD dwHookData
)
1165 HDC hdc
= HDC_32( hdc16
);
1166 DC
*dc
= DC_GetDCPtr( hdc
);
1167 if (!dc
) return FALSE
;
1169 dc
->hookProc
= hookProc
;
1170 GDI_ReleaseObj( hdc
);
1171 return SetDCHook( hdc
, call_dc_hook16
, dwHookData
);
1175 /***********************************************************************
1176 * GetDCHook (GDI.191)
1178 DWORD WINAPI
GetDCHook16( HDC16 hdc16
, FARPROC16
*phookProc
)
1180 HDC hdc
= HDC_32( hdc16
);
1181 DC
*dc
= DC_GetDCPtr( hdc
);
1185 *phookProc
= dc
->hookProc
;
1186 ret
= dc
->dwHookData
;
1187 GDI_ReleaseObj( hdc
);
1192 /***********************************************************************
1193 * SetHookFlags (GDI.192)
1195 WORD WINAPI
SetHookFlags16(HDC16 hdc16
, WORD flags
)
1197 HDC hdc
= HDC_32( hdc16
);
1198 DC
*dc
= DC_GetDCPtr( hdc
);
1202 WORD wRet
= dc
->flags
& DC_DIRTY
;
1204 /* "Undocumented Windows" info is slightly confusing.
1207 TRACE("hDC %p, flags %04x\n",hdc
,flags
);
1209 if( flags
& DCHF_INVALIDATEVISRGN
)
1210 dc
->flags
|= DC_DIRTY
;
1211 else if( flags
& DCHF_VALIDATEVISRGN
|| !flags
)
1212 dc
->flags
&= ~DC_DIRTY
;
1213 GDI_ReleaseObj( hdc
);
1219 /***********************************************************************
1220 * SetICMMode (GDI32.@)
1222 INT WINAPI
SetICMMode(HDC hdc
, INT iEnableICM
)
1224 /*FIXME Asuming that ICM is always off, and cannot be turned on */
1225 if (iEnableICM
== ICM_OFF
) return ICM_OFF
;
1226 if (iEnableICM
== ICM_ON
) return 0;
1227 if (iEnableICM
== ICM_QUERY
) return ICM_OFF
;
1231 /***********************************************************************
1232 * GetDeviceGammaRamp (GDI32.@)
1234 BOOL WINAPI
GetDeviceGammaRamp(HDC hDC
, LPVOID ptr
)
1237 DC
*dc
= DC_GetDCPtr( hDC
);
1241 if (dc
->funcs
->pGetDeviceGammaRamp
)
1242 ret
= dc
->funcs
->pGetDeviceGammaRamp(dc
->physDev
, ptr
);
1243 GDI_ReleaseObj( hDC
);
1248 /***********************************************************************
1249 * SetDeviceGammaRamp (GDI32.@)
1251 BOOL WINAPI
SetDeviceGammaRamp(HDC hDC
, LPVOID ptr
)
1254 DC
*dc
= DC_GetDCPtr( hDC
);
1258 if (dc
->funcs
->pSetDeviceGammaRamp
)
1259 ret
= dc
->funcs
->pSetDeviceGammaRamp(dc
->physDev
, ptr
);
1260 GDI_ReleaseObj( hDC
);
1265 /***********************************************************************
1266 * GetColorSpace (GDI32.@)
1268 HCOLORSPACE WINAPI
GetColorSpace(HDC hdc
)
1270 /*FIXME Need to to whatever GetColorSpace actually does */
1274 /***********************************************************************
1275 * CreateColorSpaceA (GDI32.@)
1277 HCOLORSPACE WINAPI
CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace
)
1283 /***********************************************************************
1284 * CreateColorSpaceW (GDI32.@)
1286 HCOLORSPACE WINAPI
CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace
)
1292 /***********************************************************************
1293 * DeleteColorSpace (GDI32.@)
1295 BOOL WINAPI
DeleteColorSpace( HCOLORSPACE hColorSpace
)
1302 /***********************************************************************
1303 * SetColorSpace (GDI32.@)
1305 HCOLORSPACE WINAPI
SetColorSpace( HDC hDC
, HCOLORSPACE hColorSpace
)
1312 /***********************************************************************
1313 * GetBoundsRect (GDI.194)
1315 UINT16 WINAPI
GetBoundsRect16(HDC16 hdc
, LPRECT16 rect
, UINT16 flags
)
1317 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1320 /***********************************************************************
1321 * GetBoundsRect (GDI32.@)
1323 UINT WINAPI
GetBoundsRect(HDC hdc
, LPRECT rect
, UINT flags
)
1325 FIXME("(): stub\n");
1326 return DCB_RESET
; /* bounding rectangle always empty */
1329 /***********************************************************************
1330 * SetBoundsRect (GDI.193)
1332 UINT16 WINAPI
SetBoundsRect16(HDC16 hdc
, const RECT16
* rect
, UINT16 flags
)
1334 if ( (flags
& DCB_ACCUMULATE
) || (flags
& DCB_ENABLE
) )
1335 FIXME("(%04x, %p, %04x): stub\n", hdc
, rect
, flags
);
1337 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1340 /***********************************************************************
1341 * SetBoundsRect (GDI32.@)
1343 UINT WINAPI
SetBoundsRect(HDC hdc
, const RECT
* rect
, UINT flags
)
1345 FIXME("(): stub\n");
1346 return DCB_DISABLE
; /* bounding rectangle always empty */
1350 /***********************************************************************
1351 * GetRelAbs (GDI32.@)
1353 INT WINAPI
GetRelAbs( HDC hdc
, DWORD dwIgnore
)
1356 DC
*dc
= DC_GetDCPtr( hdc
);
1357 if (dc
) ret
= dc
->relAbsMode
;
1358 GDI_ReleaseObj( hdc
);
1362 /***********************************************************************
1363 * GetLayout (GDI32.@)
1365 * Gets left->right or right->left text layout flags of a dc.
1366 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1369 DWORD WINAPI
GetLayout(HDC hdc
)
1371 FIXME("(%p): stub\n", hdc
);
1372 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
1376 /***********************************************************************
1377 * SetLayout (GDI32.@)
1379 * Sets left->right or right->left text layout flags of a dc.
1380 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1383 DWORD WINAPI
SetLayout(HDC hdc
, DWORD layout
)
1385 FIXME("(%p,%08lx): stub\n", hdc
, layout
);
1386 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
1390 /***********************************************************************
1391 * SetDCBrushColor (GDI32.@)
1393 * Sets the current device context (DC) brush color to the specified
1394 * color value. If the device cannot represent the specified color
1395 * value, the color is set to the nearest physical color.
1398 COLORREF WINAPI
SetDCBrushColor(HDC hdc
, COLORREF crColor
)
1400 FIXME("(%p, %08lx): stub\n", hdc
, crColor
);
1401 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);