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"
32 #include "wine/debug.h"
34 WINE_DEFAULT_DEBUG_CHANNEL(dc
);
36 /* ### start build ### */
37 extern WORD CALLBACK
GDI_CallTo16_word_wwll(FARPROC16
,WORD
,WORD
,LONG
,LONG
);
38 /* ### stop build ### */
40 static BOOL
DC_DeleteObject( HGDIOBJ handle
, void *obj
);
42 static const struct gdi_obj_funcs dc_funcs
=
44 NULL
, /* pSelectObject */
45 NULL
, /* pGetObject16 */
46 NULL
, /* pGetObjectA */
47 NULL
, /* pGetObjectW */
48 NULL
, /* pUnrealizeObject */
49 DC_DeleteObject
/* pDeleteObject */
52 /***********************************************************************
55 DC
*DC_AllocDC( const DC_FUNCTIONS
*funcs
)
60 if (!(dc
= GDI_AllocObject( sizeof(*dc
), DC_MAGIC
, (HGDIOBJ
*)&hdc
, &dc_funcs
))) return NULL
;
81 dc
->hPen
= GetStockObject( BLACK_PEN
);
82 dc
->hBrush
= GetStockObject( WHITE_BRUSH
);
83 dc
->hFont
= GetStockObject( SYSTEM_FONT
);
86 dc
->hPalette
= GetStockObject( DEFAULT_PALETTE
);
88 dc
->ROPmode
= R2_COPYPEN
;
89 dc
->polyFillMode
= ALTERNATE
;
90 dc
->stretchBltMode
= BLACKONWHITE
;
91 dc
->relAbsMode
= ABSOLUTE
;
92 dc
->backgroundMode
= OPAQUE
;
93 dc
->backgroundColor
= RGB( 255, 255, 255 );
94 dc
->textColor
= RGB( 0, 0, 0 );
97 dc
->textAlign
= TA_LEFT
| TA_TOP
| TA_NOUPDATECP
;
99 dc
->breakTotalExtra
= 0;
103 dc
->totalExtent
.left
= 0;
104 dc
->totalExtent
.top
= 0;
105 dc
->totalExtent
.right
= 0;
106 dc
->totalExtent
.bottom
= 0;
107 dc
->bitsPerPixel
= 1;
108 dc
->MapMode
= MM_TEXT
;
109 dc
->GraphicsMode
= GM_COMPATIBLE
;
110 dc
->pAbortProc
= NULL
;
113 dc
->ArcDirection
= AD_COUNTERCLOCKWISE
;
114 dc
->xformWorld2Wnd
.eM11
= 1.0f
;
115 dc
->xformWorld2Wnd
.eM12
= 0.0f
;
116 dc
->xformWorld2Wnd
.eM21
= 0.0f
;
117 dc
->xformWorld2Wnd
.eM22
= 1.0f
;
118 dc
->xformWorld2Wnd
.eDx
= 0.0f
;
119 dc
->xformWorld2Wnd
.eDy
= 0.0f
;
120 dc
->xformWorld2Vport
= dc
->xformWorld2Wnd
;
121 dc
->xformVport2World
= dc
->xformWorld2Wnd
;
122 dc
->vport2WorldValid
= TRUE
;
123 PATH_InitGdiPath(&dc
->path
);
129 /***********************************************************************
132 DC
*DC_GetDCPtr( HDC hdc
)
134 GDIOBJHDR
*ptr
= GDI_GetObjPtr( hdc
, MAGIC_DONTCARE
);
135 if (!ptr
) return NULL
;
136 if ((GDIMAGIC(ptr
->wMagic
) == DC_MAGIC
) ||
137 (GDIMAGIC(ptr
->wMagic
) == METAFILE_DC_MAGIC
) ||
138 (GDIMAGIC(ptr
->wMagic
) == ENHMETAFILE_DC_MAGIC
))
140 GDI_ReleaseObj( hdc
);
141 SetLastError( ERROR_INVALID_HANDLE
);
145 /***********************************************************************
148 * Retrieve a DC ptr while making sure the visRgn is updated.
149 * This function may call up to USER so the GDI lock should _not_
150 * be held when calling it.
152 DC
*DC_GetDCUpdate( HDC hdc
)
154 DC
*dc
= DC_GetDCPtr( hdc
);
155 if (!dc
) return NULL
;
156 while (dc
->flags
& DC_DIRTY
)
158 dc
->flags
&= ~DC_DIRTY
;
159 if (!(dc
->flags
& (DC_SAVED
| DC_MEMORY
)))
161 DCHOOKPROC proc
= dc
->hookThunk
;
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 */
176 /***********************************************************************
179 static BOOL
DC_DeleteObject( HGDIOBJ handle
, void *obj
)
181 GDI_ReleaseObj( handle
);
182 return DeleteDC( handle
);
186 /***********************************************************************
189 * Setup device-specific DC values for a newly created DC.
191 void DC_InitDC( DC
* dc
)
193 if (dc
->funcs
->pRealizeDefaultPalette
) dc
->funcs
->pRealizeDefaultPalette( dc
->physDev
);
194 SetTextColor( dc
->hSelf
, dc
->textColor
);
195 SetBkColor( dc
->hSelf
, dc
->backgroundColor
);
196 SelectObject( dc
->hSelf
, dc
->hPen
);
197 SelectObject( dc
->hSelf
, dc
->hBrush
);
198 SelectObject( dc
->hSelf
, dc
->hFont
);
199 CLIPPING_UpdateGCRegion( dc
);
203 /***********************************************************************
206 * Computes the inverse of the transformation xformSrc and stores it to
207 * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
210 static BOOL
DC_InvertXform( const XFORM
*xformSrc
, XFORM
*xformDest
)
214 determinant
= xformSrc
->eM11
*xformSrc
->eM22
-
215 xformSrc
->eM12
*xformSrc
->eM21
;
216 if (determinant
> -1e-12 && determinant
< 1e-12)
219 xformDest
->eM11
= xformSrc
->eM22
/ determinant
;
220 xformDest
->eM12
= -xformSrc
->eM12
/ determinant
;
221 xformDest
->eM21
= -xformSrc
->eM21
/ determinant
;
222 xformDest
->eM22
= xformSrc
->eM11
/ determinant
;
223 xformDest
->eDx
= -xformSrc
->eDx
* xformDest
->eM11
-
224 xformSrc
->eDy
* xformDest
->eM21
;
225 xformDest
->eDy
= -xformSrc
->eDx
* xformDest
->eM12
-
226 xformSrc
->eDy
* xformDest
->eM22
;
232 /***********************************************************************
235 * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
236 * fields of the specified DC by creating a transformation that
237 * represents the current mapping mode and combining it with the DC's
238 * world transform. This function should be called whenever the
239 * parameters associated with the mapping mode (window and viewport
240 * extents and origins) or the world transform change.
242 void DC_UpdateXforms( DC
*dc
)
244 XFORM xformWnd2Vport
;
245 FLOAT scaleX
, scaleY
;
247 /* Construct a transformation to do the window-to-viewport conversion */
248 scaleX
= (FLOAT
)dc
->vportExtX
/ (FLOAT
)dc
->wndExtX
;
249 scaleY
= (FLOAT
)dc
->vportExtY
/ (FLOAT
)dc
->wndExtY
;
250 xformWnd2Vport
.eM11
= scaleX
;
251 xformWnd2Vport
.eM12
= 0.0;
252 xformWnd2Vport
.eM21
= 0.0;
253 xformWnd2Vport
.eM22
= scaleY
;
254 xformWnd2Vport
.eDx
= (FLOAT
)dc
->vportOrgX
-
255 scaleX
* (FLOAT
)dc
->wndOrgX
;
256 xformWnd2Vport
.eDy
= (FLOAT
)dc
->vportOrgY
-
257 scaleY
* (FLOAT
)dc
->wndOrgY
;
259 /* Combine with the world transformation */
260 CombineTransform( &dc
->xformWorld2Vport
, &dc
->xformWorld2Wnd
,
263 /* Create inverse of world-to-viewport transformation */
264 dc
->vport2WorldValid
= DC_InvertXform( &dc
->xformWorld2Vport
,
265 &dc
->xformVport2World
);
269 /***********************************************************************
270 * GetDCState (Not a Windows API)
272 HDC WINAPI
GetDCState( HDC hdc
)
277 if (!(dc
= DC_GetDCPtr( hdc
))) return 0;
278 if (!(newdc
= GDI_AllocObject( sizeof(DC
), DC_MAGIC
, &handle
, &dc_funcs
)))
280 GDI_ReleaseObj( hdc
);
283 TRACE("(%p): returning %p\n", hdc
, handle
);
285 newdc
->flags
= dc
->flags
| DC_SAVED
;
286 newdc
->hPen
= dc
->hPen
;
287 newdc
->hBrush
= dc
->hBrush
;
288 newdc
->hFont
= dc
->hFont
;
289 newdc
->hBitmap
= dc
->hBitmap
;
290 newdc
->hDevice
= dc
->hDevice
;
291 newdc
->hPalette
= dc
->hPalette
;
292 newdc
->totalExtent
= dc
->totalExtent
;
293 newdc
->bitsPerPixel
= dc
->bitsPerPixel
;
294 newdc
->ROPmode
= dc
->ROPmode
;
295 newdc
->polyFillMode
= dc
->polyFillMode
;
296 newdc
->stretchBltMode
= dc
->stretchBltMode
;
297 newdc
->relAbsMode
= dc
->relAbsMode
;
298 newdc
->backgroundMode
= dc
->backgroundMode
;
299 newdc
->backgroundColor
= dc
->backgroundColor
;
300 newdc
->textColor
= dc
->textColor
;
301 newdc
->brushOrgX
= dc
->brushOrgX
;
302 newdc
->brushOrgY
= dc
->brushOrgY
;
303 newdc
->textAlign
= dc
->textAlign
;
304 newdc
->charExtra
= dc
->charExtra
;
305 newdc
->breakTotalExtra
= dc
->breakTotalExtra
;
306 newdc
->breakCount
= dc
->breakCount
;
307 newdc
->breakExtra
= dc
->breakExtra
;
308 newdc
->breakRem
= dc
->breakRem
;
309 newdc
->MapMode
= dc
->MapMode
;
310 newdc
->GraphicsMode
= dc
->GraphicsMode
;
311 newdc
->CursPosX
= dc
->CursPosX
;
312 newdc
->CursPosY
= dc
->CursPosY
;
313 newdc
->ArcDirection
= dc
->ArcDirection
;
314 newdc
->xformWorld2Wnd
= dc
->xformWorld2Wnd
;
315 newdc
->xformWorld2Vport
= dc
->xformWorld2Vport
;
316 newdc
->xformVport2World
= dc
->xformVport2World
;
317 newdc
->vport2WorldValid
= dc
->vport2WorldValid
;
318 newdc
->wndOrgX
= dc
->wndOrgX
;
319 newdc
->wndOrgY
= dc
->wndOrgY
;
320 newdc
->wndExtX
= dc
->wndExtX
;
321 newdc
->wndExtY
= dc
->wndExtY
;
322 newdc
->vportOrgX
= dc
->vportOrgX
;
323 newdc
->vportOrgY
= dc
->vportOrgY
;
324 newdc
->vportExtX
= dc
->vportExtX
;
325 newdc
->vportExtY
= dc
->vportExtY
;
327 newdc
->hSelf
= (HDC
)handle
;
328 newdc
->saveLevel
= 0;
330 PATH_InitGdiPath( &newdc
->path
);
332 newdc
->pAbortProc
= NULL
;
333 newdc
->hookThunk
= NULL
;
336 /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
338 newdc
->hGCClipRgn
= newdc
->hVisRgn
= 0;
341 newdc
->hClipRgn
= CreateRectRgn( 0, 0, 0, 0 );
342 CombineRgn( newdc
->hClipRgn
, dc
->hClipRgn
, 0, RGN_COPY
);
348 newdc
->gdiFont
= dc
->gdiFont
;
352 GDI_ReleaseObj( handle
);
353 GDI_ReleaseObj( hdc
);
358 /***********************************************************************
359 * SetDCState (Not a Windows API)
361 void WINAPI
SetDCState( HDC hdc
, HDC hdcs
)
365 if (!(dc
= DC_GetDCUpdate( hdc
))) return;
366 if (!(dcs
= DC_GetDCPtr( hdcs
)))
368 GDI_ReleaseObj( hdc
);
371 if (!dcs
->flags
& DC_SAVED
)
373 GDI_ReleaseObj( hdc
);
374 GDI_ReleaseObj( hdcs
);
377 TRACE("%p %p\n", hdc
, hdcs
);
379 dc
->flags
= dcs
->flags
& ~(DC_SAVED
| DC_DIRTY
);
380 dc
->hDevice
= dcs
->hDevice
;
381 dc
->totalExtent
= dcs
->totalExtent
;
382 dc
->ROPmode
= dcs
->ROPmode
;
383 dc
->polyFillMode
= dcs
->polyFillMode
;
384 dc
->stretchBltMode
= dcs
->stretchBltMode
;
385 dc
->relAbsMode
= dcs
->relAbsMode
;
386 dc
->backgroundMode
= dcs
->backgroundMode
;
387 dc
->backgroundColor
= dcs
->backgroundColor
;
388 dc
->textColor
= dcs
->textColor
;
389 dc
->brushOrgX
= dcs
->brushOrgX
;
390 dc
->brushOrgY
= dcs
->brushOrgY
;
391 dc
->textAlign
= dcs
->textAlign
;
392 dc
->charExtra
= dcs
->charExtra
;
393 dc
->breakTotalExtra
= dcs
->breakTotalExtra
;
394 dc
->breakCount
= dcs
->breakCount
;
395 dc
->breakExtra
= dcs
->breakExtra
;
396 dc
->breakRem
= dcs
->breakRem
;
397 dc
->MapMode
= dcs
->MapMode
;
398 dc
->GraphicsMode
= dcs
->GraphicsMode
;
399 dc
->CursPosX
= dcs
->CursPosX
;
400 dc
->CursPosY
= dcs
->CursPosY
;
401 dc
->ArcDirection
= dcs
->ArcDirection
;
402 dc
->xformWorld2Wnd
= dcs
->xformWorld2Wnd
;
403 dc
->xformWorld2Vport
= dcs
->xformWorld2Vport
;
404 dc
->xformVport2World
= dcs
->xformVport2World
;
405 dc
->vport2WorldValid
= dcs
->vport2WorldValid
;
407 dc
->wndOrgX
= dcs
->wndOrgX
;
408 dc
->wndOrgY
= dcs
->wndOrgY
;
409 dc
->wndExtX
= dcs
->wndExtX
;
410 dc
->wndExtY
= dcs
->wndExtY
;
411 dc
->vportOrgX
= dcs
->vportOrgX
;
412 dc
->vportOrgY
= dcs
->vportOrgY
;
413 dc
->vportExtX
= dcs
->vportExtX
;
414 dc
->vportExtY
= dcs
->vportExtY
;
416 if (!(dc
->flags
& DC_MEMORY
)) dc
->bitsPerPixel
= dcs
->bitsPerPixel
;
420 if (!dc
->hClipRgn
) dc
->hClipRgn
= CreateRectRgn( 0, 0, 0, 0 );
421 CombineRgn( dc
->hClipRgn
, dcs
->hClipRgn
, 0, RGN_COPY
);
425 if (dc
->hClipRgn
) DeleteObject( dc
->hClipRgn
);
428 CLIPPING_UpdateGCRegion( dc
);
430 SelectObject( hdc
, dcs
->hBitmap
);
431 SelectObject( hdc
, dcs
->hBrush
);
432 SelectObject( hdc
, dcs
->hFont
);
433 SelectObject( hdc
, dcs
->hPen
);
434 SetBkColor( hdc
, dcs
->backgroundColor
);
435 SetTextColor( hdc
, dcs
->textColor
);
436 GDISelectPalette( hdc
, dcs
->hPalette
, FALSE
);
437 GDI_ReleaseObj( hdcs
);
438 GDI_ReleaseObj( hdc
);
442 /***********************************************************************
443 * GetDCState (GDI.179)
445 HDC16 WINAPI
GetDCState16( HDC16 hdc
)
447 return HDC_16( GetDCState( HDC_32(hdc
) ));
451 /***********************************************************************
452 * SetDCState (GDI.180)
454 void WINAPI
SetDCState16( HDC16 hdc
, HDC16 hdcs
)
456 SetDCState( HDC_32(hdc
), HDC_32(hdcs
) );
460 /***********************************************************************
463 INT WINAPI
SaveDC( HDC hdc
)
469 dc
= DC_GetDCPtr( hdc
);
472 if(dc
->funcs
->pSaveDC
)
474 ret
= dc
->funcs
->pSaveDC( dc
->physDev
);
475 GDI_ReleaseObj( hdc
);
479 if (!(hdcs
= GetDCState( hdc
)))
481 GDI_ReleaseObj( hdc
);
484 dcs
= DC_GetDCPtr( hdcs
);
486 /* Copy path. The reason why path saving / restoring is in SaveDC/
487 * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
488 * functions are only in Win16 (which doesn't have paths) and that
489 * SetDCState doesn't allow us to signal an error (which can happen
490 * when copying paths).
492 if (!PATH_AssignGdiPath( &dcs
->path
, &dc
->path
))
494 GDI_ReleaseObj( hdc
);
495 GDI_ReleaseObj( hdcs
);
500 dcs
->header
.hNext
= dc
->header
.hNext
;
501 dc
->header
.hNext
= HDC_16(hdcs
);
502 TRACE("(%p): returning %d\n", hdc
, dc
->saveLevel
+1 );
503 ret
= ++dc
->saveLevel
;
504 GDI_ReleaseObj( hdcs
);
505 GDI_ReleaseObj( hdc
);
510 /***********************************************************************
511 * RestoreDC (GDI32.@)
513 BOOL WINAPI
RestoreDC( HDC hdc
, INT level
)
518 TRACE("%p %d\n", hdc
, level
);
519 dc
= DC_GetDCUpdate( hdc
);
520 if(!dc
) return FALSE
;
521 if(dc
->funcs
->pRestoreDC
)
523 success
= dc
->funcs
->pRestoreDC( dc
->physDev
, level
);
524 GDI_ReleaseObj( hdc
);
528 if (level
== -1) level
= dc
->saveLevel
;
530 /* This pair of checks disagrees with MSDN "Platform SDK:
531 Windows GDI" July 2000 which says all negative values
532 for level will be interpreted as an instance relative
533 to the current state. Restricting it to just -1 does
535 || (level
> dc
->saveLevel
))
537 GDI_ReleaseObj( hdc
);
542 while (dc
->saveLevel
>= level
)
544 HDC hdcs
= HDC_32(dc
->header
.hNext
);
545 if (!(dcs
= DC_GetDCPtr( hdcs
)))
547 GDI_ReleaseObj( hdc
);
550 dc
->header
.hNext
= dcs
->header
.hNext
;
551 if (--dc
->saveLevel
< level
)
553 SetDCState( hdc
, hdcs
);
554 if (!PATH_AssignGdiPath( &dc
->path
, &dcs
->path
))
555 /* FIXME: This might not be quite right, since we're
556 * returning FALSE but still destroying the saved DC state */
559 GDI_ReleaseObj( hdcs
);
560 GDI_ReleaseObj( hdc
);
562 if (!(dc
= DC_GetDCPtr( hdc
))) return FALSE
;
564 GDI_ReleaseObj( hdc
);
569 /***********************************************************************
570 * CreateDCA (GDI32.@)
572 HDC WINAPI
CreateDCA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
573 const DEVMODEA
*initData
)
577 const DC_FUNCTIONS
*funcs
;
582 if (!device
|| !DRIVER_GetDriverName( device
, buf
, sizeof(buf
) ))
584 if (!driver
) return 0;
588 if (!(funcs
= DRIVER_load_driver( buf
)))
590 ERR( "no driver found for %s\n", buf
);
593 if (!(dc
= DC_AllocDC( funcs
)))
595 DRIVER_release_driver( funcs
);
601 TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
602 debugstr_a(driver
), debugstr_a(device
), debugstr_a(output
), dc
->hSelf
);
604 if (dc
->funcs
->pCreateDC
&&
605 !dc
->funcs
->pCreateDC( dc
, &dc
->physDev
, buf
, device
, output
, initData
))
607 WARN("creation aborted by device\n" );
608 GDI_FreeObject( dc
->hSelf
, dc
);
609 DRIVER_release_driver( funcs
);
613 dc
->totalExtent
.left
= 0;
614 dc
->totalExtent
.top
= 0;
615 dc
->totalExtent
.right
= GetDeviceCaps( dc
->hSelf
, HORZRES
);
616 dc
->totalExtent
.bottom
= GetDeviceCaps( dc
->hSelf
, VERTRES
);
617 dc
->hVisRgn
= CreateRectRgnIndirect( &dc
->totalExtent
);
621 GDI_ReleaseObj( hdc
);
626 /***********************************************************************
627 * CreateDCW (GDI32.@)
629 HDC WINAPI
CreateDCW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
630 const DEVMODEW
*initData
)
632 LPSTR driverA
= HEAP_strdupWtoA( GetProcessHeap(), 0, driver
);
633 LPSTR deviceA
= HEAP_strdupWtoA( GetProcessHeap(), 0, device
);
634 LPSTR outputA
= HEAP_strdupWtoA( GetProcessHeap(), 0, output
);
635 HDC res
= CreateDCA( driverA
, deviceA
, outputA
,
636 (const DEVMODEA
*)initData
/*FIXME*/ );
637 HeapFree( GetProcessHeap(), 0, driverA
);
638 HeapFree( GetProcessHeap(), 0, deviceA
);
639 HeapFree( GetProcessHeap(), 0, outputA
);
644 /***********************************************************************
645 * CreateICA (GDI32.@)
647 HDC WINAPI
CreateICA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
648 const DEVMODEA
* initData
)
650 /* Nothing special yet for ICs */
651 return CreateDCA( driver
, device
, output
, initData
);
655 /***********************************************************************
656 * CreateICW (GDI32.@)
658 HDC WINAPI
CreateICW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
659 const DEVMODEW
* initData
)
661 /* Nothing special yet for ICs */
662 return CreateDCW( driver
, device
, output
, initData
);
666 /***********************************************************************
667 * CreateCompatibleDC (GDI32.@)
669 HDC WINAPI
CreateCompatibleDC( HDC hdc
)
672 const DC_FUNCTIONS
*funcs
;
676 if ((origDC
= GDI_GetObjPtr( hdc
, DC_MAGIC
)))
678 funcs
= origDC
->funcs
;
679 GDI_ReleaseObj( hdc
); /* can't hold the lock while loading the driver */
680 funcs
= DRIVER_get_driver( funcs
);
682 else funcs
= DRIVER_load_driver( "DISPLAY" );
684 if (!funcs
) return 0;
686 if (!(dc
= DC_AllocDC( funcs
)))
688 DRIVER_release_driver( funcs
);
692 TRACE("(%p): returning %p\n", hdc
, dc
->hSelf
);
694 dc
->flags
= DC_MEMORY
;
695 dc
->bitsPerPixel
= 1;
696 dc
->hBitmap
= GetStockObject( DEFAULT_BITMAP
);
698 /* Copy the driver-specific physical device info into
699 * the new DC. The driver may use this read-only info
700 * while creating the compatible DC below. */
701 if ((origDC
= GDI_GetObjPtr( hdc
, DC_MAGIC
))) dc
->physDev
= origDC
->physDev
;
703 if (dc
->funcs
->pCreateDC
&&
704 !dc
->funcs
->pCreateDC( dc
, &dc
->physDev
, NULL
, NULL
, NULL
, NULL
))
706 WARN("creation aborted by device\n");
707 GDI_FreeObject( dc
->hSelf
, dc
);
708 if (origDC
) GDI_ReleaseObj( hdc
);
709 DRIVER_release_driver( funcs
);
713 dc
->totalExtent
.left
= 0;
714 dc
->totalExtent
.top
= 0;
715 dc
->totalExtent
.right
= 1; /* default bitmap is 1x1 */
716 dc
->totalExtent
.bottom
= 1;
717 dc
->hVisRgn
= CreateRectRgnIndirect( &dc
->totalExtent
);
720 GDI_ReleaseObj( dc
->hSelf
);
721 if (origDC
) GDI_ReleaseObj( hdc
);
726 /***********************************************************************
729 BOOL WINAPI
DeleteDC( HDC hdc
)
731 const DC_FUNCTIONS
*funcs
= NULL
;
738 if (!(dc
= GDI_GetObjPtr( hdc
, DC_MAGIC
))) return FALSE
;
740 /* Call hook procedure to check whether is it OK to delete this DC */
741 if (dc
->hookThunk
&& !(dc
->flags
& (DC_SAVED
| DC_MEMORY
)))
743 DCHOOKPROC proc
= dc
->hookThunk
;
746 DWORD data
= dc
->dwHookData
;
747 GDI_ReleaseObj( hdc
);
748 if (!proc( HDC_16(hdc
), DCHC_DELETEDC
, data
, 0 )) return FALSE
;
749 if (!(dc
= DC_GetDCPtr( hdc
))) return TRUE
; /* deleted by the hook */
753 while (dc
->saveLevel
)
756 HDC hdcs
= HDC_32(dc
->header
.hNext
);
757 if (!(dcs
= DC_GetDCPtr( hdcs
))) break;
758 dc
->header
.hNext
= dcs
->header
.hNext
;
760 if (dcs
->hClipRgn
) DeleteObject( dcs
->hClipRgn
);
761 if (dcs
->hVisRgn
) DeleteObject( dcs
->hVisRgn
);
762 if (dcs
->hGCClipRgn
) DeleteObject( dcs
->hGCClipRgn
);
763 PATH_DestroyGdiPath(&dcs
->path
);
764 GDI_FreeObject( hdcs
, dcs
);
767 if (!(dc
->flags
& DC_SAVED
))
769 SelectObject( hdc
, GetStockObject(BLACK_PEN
) );
770 SelectObject( hdc
, GetStockObject(WHITE_BRUSH
) );
771 SelectObject( hdc
, GetStockObject(SYSTEM_FONT
) );
772 SelectObject( hdc
, GetStockObject(DEFAULT_BITMAP
) );
774 if (dc
->funcs
->pDeleteDC
) dc
->funcs
->pDeleteDC(dc
->physDev
);
778 if (dc
->hClipRgn
) DeleteObject( dc
->hClipRgn
);
779 if (dc
->hVisRgn
) DeleteObject( dc
->hVisRgn
);
780 if (dc
->hGCClipRgn
) DeleteObject( dc
->hGCClipRgn
);
781 PATH_DestroyGdiPath(&dc
->path
);
783 GDI_FreeObject( hdc
, dc
);
784 if (funcs
) DRIVER_release_driver( funcs
); /* do that after releasing the GDI lock */
789 /***********************************************************************
792 HDC WINAPI
ResetDCA( HDC hdc
, const DEVMODEA
*devmode
)
797 if ((dc
= DC_GetDCPtr( hdc
)))
799 if (dc
->funcs
->pResetDC
) ret
= dc
->funcs
->pResetDC( dc
->physDev
, devmode
);
800 GDI_ReleaseObj( hdc
);
806 /***********************************************************************
809 HDC WINAPI
ResetDCW( HDC hdc
, const DEVMODEW
*devmode
)
811 return ResetDCA(hdc
, (const DEVMODEA
*)devmode
); /* FIXME */
815 /***********************************************************************
816 * GetDeviceCaps (GDI32.@)
818 INT WINAPI
GetDeviceCaps( HDC hdc
, INT cap
)
823 if ((dc
= DC_GetDCPtr( hdc
)))
825 if (dc
->funcs
->pGetDeviceCaps
) ret
= dc
->funcs
->pGetDeviceCaps( dc
->physDev
, cap
);
826 GDI_ReleaseObj( hdc
);
832 /***********************************************************************
833 * SetBkColor (GDI32.@)
835 COLORREF WINAPI
SetBkColor( HDC hdc
, COLORREF color
)
838 DC
* dc
= DC_GetDCPtr( hdc
);
840 if (!dc
) return CLR_INVALID
;
841 oldColor
= dc
->backgroundColor
;
842 if (dc
->funcs
->pSetBkColor
)
844 color
= dc
->funcs
->pSetBkColor(dc
->physDev
, color
);
845 if (color
== CLR_INVALID
) /* don't change it */
848 oldColor
= CLR_INVALID
;
851 dc
->backgroundColor
= color
;
852 GDI_ReleaseObj( hdc
);
857 /***********************************************************************
858 * SetTextColor (GDI32.@)
860 COLORREF WINAPI
SetTextColor( HDC hdc
, COLORREF color
)
863 DC
* dc
= DC_GetDCPtr( hdc
);
865 if (!dc
) return CLR_INVALID
;
866 oldColor
= dc
->textColor
;
867 if (dc
->funcs
->pSetTextColor
)
869 color
= dc
->funcs
->pSetTextColor(dc
->physDev
, color
);
870 if (color
== CLR_INVALID
) /* don't change it */
873 oldColor
= CLR_INVALID
;
876 dc
->textColor
= color
;
877 GDI_ReleaseObj( hdc
);
882 /***********************************************************************
883 * SetTextAlign (GDI32.@)
885 UINT WINAPI
SetTextAlign( HDC hdc
, UINT align
)
888 DC
*dc
= DC_GetDCPtr( hdc
);
890 if (dc
->funcs
->pSetTextAlign
)
891 prevAlign
= dc
->funcs
->pSetTextAlign(dc
->physDev
, align
);
893 prevAlign
= dc
->textAlign
;
894 dc
->textAlign
= align
;
896 GDI_ReleaseObj( hdc
);
900 /***********************************************************************
901 * GetDCOrgEx (GDI32.@)
903 BOOL WINAPI
GetDCOrgEx( HDC hDC
, LPPOINT lpp
)
907 if (!lpp
) return FALSE
;
908 if (!(dc
= DC_GetDCPtr( hDC
))) return FALSE
;
911 if (dc
->funcs
->pGetDCOrgEx
) dc
->funcs
->pGetDCOrgEx( dc
->physDev
, lpp
);
912 GDI_ReleaseObj( hDC
);
917 /***********************************************************************
920 DWORD WINAPI
SetDCOrg16( HDC16 hdc16
, INT16 x
, INT16 y
)
923 HDC hdc
= HDC_32( hdc16
);
924 DC
*dc
= DC_GetDCPtr( hdc
);
926 if (dc
->funcs
->pSetDCOrg
) prevOrg
= dc
->funcs
->pSetDCOrg( dc
->physDev
, x
, y
);
927 GDI_ReleaseObj( hdc
);
932 /***********************************************************************
933 * SetGraphicsMode (GDI32.@)
935 INT WINAPI
SetGraphicsMode( HDC hdc
, INT mode
)
938 DC
*dc
= DC_GetDCPtr( hdc
);
940 /* One would think that setting the graphics mode to GM_COMPATIBLE
941 * would also reset the world transformation matrix to the unity
942 * matrix. However, in Windows, this is not the case. This doesn't
943 * make a lot of sense to me, but that's the way it is.
946 if ((mode
> 0) || (mode
<= GM_LAST
))
948 ret
= dc
->GraphicsMode
;
949 dc
->GraphicsMode
= mode
;
951 GDI_ReleaseObj( hdc
);
956 /***********************************************************************
957 * SetArcDirection (GDI32.@)
959 INT WINAPI
SetArcDirection( HDC hdc
, INT nDirection
)
962 INT nOldDirection
= 0;
964 if (nDirection
!=AD_COUNTERCLOCKWISE
&& nDirection
!=AD_CLOCKWISE
)
966 SetLastError(ERROR_INVALID_PARAMETER
);
970 if ((dc
= DC_GetDCPtr( hdc
)))
972 nOldDirection
= dc
->ArcDirection
;
973 dc
->ArcDirection
= nDirection
;
974 GDI_ReleaseObj( hdc
);
976 return nOldDirection
;
980 /***********************************************************************
981 * GetWorldTransform (GDI32.@)
983 BOOL WINAPI
GetWorldTransform( HDC hdc
, LPXFORM xform
)
986 if (!xform
) return FALSE
;
987 if (!(dc
= DC_GetDCPtr( hdc
))) return FALSE
;
988 *xform
= dc
->xformWorld2Wnd
;
989 GDI_ReleaseObj( hdc
);
994 /***********************************************************************
995 * SetWorldTransform (GDI32.@)
997 BOOL WINAPI
SetWorldTransform( HDC hdc
, const XFORM
*xform
)
1000 DC
*dc
= DC_GetDCPtr( hdc
);
1002 if (!dc
) return FALSE
;
1003 if (!xform
) goto done
;
1005 /* Check that graphics mode is GM_ADVANCED */
1006 if (dc
->GraphicsMode
!=GM_ADVANCED
) goto done
;
1008 dc
->xformWorld2Wnd
= *xform
;
1009 DC_UpdateXforms( dc
);
1012 GDI_ReleaseObj( hdc
);
1017 /****************************************************************************
1018 * ModifyWorldTransform [GDI32.@]
1019 * Modifies the world transformation for a device context.
1022 * hdc [I] Handle to device context
1023 * xform [I] XFORM structure that will be used to modify the world
1025 * iMode [I] Specifies in what way to modify the world transformation
1028 * Resets the world transformation to the identity matrix.
1029 * The parameter xform is ignored.
1031 * Multiplies xform into the world transformation matrix from
1034 * Multiplies xform into the world transformation matrix from
1039 BOOL WINAPI
ModifyWorldTransform( HDC hdc
, const XFORM
*xform
,
1043 DC
*dc
= DC_GetDCPtr( hdc
);
1045 /* Check for illegal parameters */
1046 if (!dc
) return FALSE
;
1047 if (!xform
) goto done
;
1049 /* Check that graphics mode is GM_ADVANCED */
1050 if (dc
->GraphicsMode
!=GM_ADVANCED
) goto done
;
1055 dc
->xformWorld2Wnd
.eM11
= 1.0f
;
1056 dc
->xformWorld2Wnd
.eM12
= 0.0f
;
1057 dc
->xformWorld2Wnd
.eM21
= 0.0f
;
1058 dc
->xformWorld2Wnd
.eM22
= 1.0f
;
1059 dc
->xformWorld2Wnd
.eDx
= 0.0f
;
1060 dc
->xformWorld2Wnd
.eDy
= 0.0f
;
1062 case MWT_LEFTMULTIPLY
:
1063 CombineTransform( &dc
->xformWorld2Wnd
, xform
,
1064 &dc
->xformWorld2Wnd
);
1066 case MWT_RIGHTMULTIPLY
:
1067 CombineTransform( &dc
->xformWorld2Wnd
, &dc
->xformWorld2Wnd
,
1074 DC_UpdateXforms( dc
);
1077 GDI_ReleaseObj( hdc
);
1082 /****************************************************************************
1083 * CombineTransform [GDI32.@]
1084 * Combines two transformation matrices.
1087 * xformResult [O] Stores the result of combining the two matrices
1088 * xform1 [I] Specifies the first matrix to apply
1089 * xform2 [I] Specifies the second matrix to apply
1092 * The same matrix can be passed in for more than one of the parameters.
1096 BOOL WINAPI
CombineTransform( LPXFORM xformResult
, const XFORM
*xform1
,
1097 const XFORM
*xform2
)
1101 /* Check for illegal parameters */
1102 if (!xformResult
|| !xform1
|| !xform2
)
1105 /* Create the result in a temporary XFORM, since xformResult may be
1106 * equal to xform1 or xform2 */
1107 xformTemp
.eM11
= xform1
->eM11
* xform2
->eM11
+
1108 xform1
->eM12
* xform2
->eM21
;
1109 xformTemp
.eM12
= xform1
->eM11
* xform2
->eM12
+
1110 xform1
->eM12
* xform2
->eM22
;
1111 xformTemp
.eM21
= xform1
->eM21
* xform2
->eM11
+
1112 xform1
->eM22
* xform2
->eM21
;
1113 xformTemp
.eM22
= xform1
->eM21
* xform2
->eM12
+
1114 xform1
->eM22
* xform2
->eM22
;
1115 xformTemp
.eDx
= xform1
->eDx
* xform2
->eM11
+
1116 xform1
->eDy
* xform2
->eM21
+
1118 xformTemp
.eDy
= xform1
->eDx
* xform2
->eM12
+
1119 xform1
->eDy
* xform2
->eM22
+
1122 /* Copy the result to xformResult */
1123 *xformResult
= xformTemp
;
1129 /***********************************************************************
1130 * SetDCHook (GDI32.@)
1132 * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1134 BOOL WINAPI
SetDCHook( HDC hdc
, DCHOOKPROC hookProc
, DWORD dwHookData
)
1136 DC
*dc
= DC_GetDCPtr( hdc
);
1138 if (!dc
) return FALSE
;
1139 dc
->dwHookData
= dwHookData
;
1140 dc
->hookThunk
= hookProc
;
1141 GDI_ReleaseObj( hdc
);
1146 /* relay function to call the 16-bit DC hook proc */
1147 static BOOL16 WINAPI
call_dc_hook16( HDC16 hdc16
, WORD code
, DWORD data
, LPARAM lParam
)
1149 FARPROC16 proc
= NULL
;
1150 HDC hdc
= HDC_32( hdc16
);
1151 DC
*dc
= DC_GetDCPtr( hdc
);
1152 if (!dc
) return FALSE
;
1153 proc
= dc
->hookProc
;
1154 GDI_ReleaseObj( hdc
);
1155 if (!proc
) return FALSE
;
1156 return GDI_CallTo16_word_wwll( proc
, hdc16
, code
, data
, lParam
);
1159 /***********************************************************************
1160 * SetDCHook (GDI.190)
1162 BOOL16 WINAPI
SetDCHook16( HDC16 hdc16
, FARPROC16 hookProc
, DWORD dwHookData
)
1164 HDC hdc
= HDC_32( hdc16
);
1165 DC
*dc
= DC_GetDCPtr( hdc
);
1166 if (!dc
) return FALSE
;
1168 dc
->hookProc
= hookProc
;
1169 GDI_ReleaseObj( hdc
);
1170 return SetDCHook( hdc
, call_dc_hook16
, dwHookData
);
1174 /***********************************************************************
1175 * GetDCHook (GDI.191)
1177 DWORD WINAPI
GetDCHook16( HDC16 hdc16
, FARPROC16
*phookProc
)
1179 HDC hdc
= HDC_32( hdc16
);
1180 DC
*dc
= DC_GetDCPtr( hdc
);
1184 *phookProc
= dc
->hookProc
;
1185 ret
= dc
->dwHookData
;
1186 GDI_ReleaseObj( hdc
);
1191 /***********************************************************************
1192 * SetHookFlags (GDI.192)
1194 WORD WINAPI
SetHookFlags16(HDC16 hdc16
, WORD flags
)
1196 HDC hdc
= HDC_32( hdc16
);
1197 DC
*dc
= DC_GetDCPtr( hdc
);
1201 WORD wRet
= dc
->flags
& DC_DIRTY
;
1203 /* "Undocumented Windows" info is slightly confusing.
1206 TRACE("hDC %p, flags %04x\n",hdc
,flags
);
1208 if( flags
& DCHF_INVALIDATEVISRGN
)
1209 dc
->flags
|= DC_DIRTY
;
1210 else if( flags
& DCHF_VALIDATEVISRGN
|| !flags
)
1211 dc
->flags
&= ~DC_DIRTY
;
1212 GDI_ReleaseObj( hdc
);
1218 /***********************************************************************
1219 * SetICMMode (GDI32.@)
1221 INT WINAPI
SetICMMode(HDC hdc
, INT iEnableICM
)
1223 /*FIXME Asuming that ICM is always off, and cannot be turned on */
1224 if (iEnableICM
== ICM_OFF
) return ICM_OFF
;
1225 if (iEnableICM
== ICM_ON
) return 0;
1226 if (iEnableICM
== ICM_QUERY
) return ICM_OFF
;
1230 /***********************************************************************
1231 * GetDeviceGammaRamp (GDI32.@)
1233 BOOL WINAPI
GetDeviceGammaRamp(HDC hDC
, LPVOID ptr
)
1236 DC
*dc
= DC_GetDCPtr( hDC
);
1240 if (dc
->funcs
->pGetDeviceGammaRamp
)
1241 ret
= dc
->funcs
->pGetDeviceGammaRamp(dc
->physDev
, ptr
);
1242 GDI_ReleaseObj( hDC
);
1247 /***********************************************************************
1248 * SetDeviceGammaRamp (GDI32.@)
1250 BOOL WINAPI
SetDeviceGammaRamp(HDC hDC
, LPVOID ptr
)
1253 DC
*dc
= DC_GetDCPtr( hDC
);
1257 if (dc
->funcs
->pSetDeviceGammaRamp
)
1258 ret
= dc
->funcs
->pSetDeviceGammaRamp(dc
->physDev
, ptr
);
1259 GDI_ReleaseObj( hDC
);
1264 /***********************************************************************
1265 * GetColorSpace (GDI32.@)
1267 HCOLORSPACE WINAPI
GetColorSpace(HDC hdc
)
1269 /*FIXME Need to to whatever GetColorSpace actually does */
1273 /***********************************************************************
1274 * CreateColorSpaceA (GDI32.@)
1276 HCOLORSPACE WINAPI
CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace
)
1282 /***********************************************************************
1283 * CreateColorSpaceW (GDI32.@)
1285 HCOLORSPACE WINAPI
CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace
)
1291 /***********************************************************************
1292 * DeleteColorSpace (GDI32.@)
1294 BOOL WINAPI
DeleteColorSpace( HCOLORSPACE hColorSpace
)
1301 /***********************************************************************
1302 * SetColorSpace (GDI32.@)
1304 HCOLORSPACE WINAPI
SetColorSpace( HDC hDC
, HCOLORSPACE hColorSpace
)
1311 /***********************************************************************
1312 * GetBoundsRect (GDI.194)
1314 UINT16 WINAPI
GetBoundsRect16(HDC16 hdc
, LPRECT16 rect
, UINT16 flags
)
1316 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1319 /***********************************************************************
1320 * GetBoundsRect (GDI32.@)
1322 UINT WINAPI
GetBoundsRect(HDC hdc
, LPRECT rect
, UINT flags
)
1324 FIXME("(): stub\n");
1325 return DCB_RESET
; /* bounding rectangle always empty */
1328 /***********************************************************************
1329 * SetBoundsRect (GDI.193)
1331 UINT16 WINAPI
SetBoundsRect16(HDC16 hdc
, const RECT16
* rect
, UINT16 flags
)
1333 if ( (flags
& DCB_ACCUMULATE
) || (flags
& DCB_ENABLE
) )
1334 FIXME("(%04x, %p, %04x): stub\n", hdc
, rect
, flags
);
1336 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1339 /***********************************************************************
1340 * SetBoundsRect (GDI32.@)
1342 UINT WINAPI
SetBoundsRect(HDC hdc
, const RECT
* rect
, UINT flags
)
1344 FIXME("(): stub\n");
1345 return DCB_DISABLE
; /* bounding rectangle always empty */
1349 /***********************************************************************
1350 * GetRelAbs (GDI32.@)
1352 INT WINAPI
GetRelAbs( HDC hdc
, DWORD dwIgnore
)
1355 DC
*dc
= DC_GetDCPtr( hdc
);
1356 if (dc
) ret
= dc
->relAbsMode
;
1357 GDI_ReleaseObj( hdc
);
1361 /***********************************************************************
1362 * GetLayout (GDI32.@)
1364 * Gets left->right or right->left text layout flags of a dc.
1365 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1368 DWORD WINAPI
GetLayout(HDC hdc
)
1370 FIXME("(%p): stub\n", hdc
);
1371 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
1375 /***********************************************************************
1376 * SetLayout (GDI32.@)
1378 * Sets left->right or right->left text layout flags of a dc.
1379 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1382 DWORD WINAPI
SetLayout(HDC hdc
, DWORD layout
)
1384 FIXME("(%p,%08lx): stub\n", hdc
, layout
);
1385 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
1389 /***********************************************************************
1390 * SetDCBrushColor (GDI32.@)
1392 * Sets the current device context (DC) brush color to the specified
1393 * color value. If the device cannot represent the specified color
1394 * value, the color is set to the nearest physical color.
1397 COLORREF WINAPI
SetDCBrushColor(HDC hdc
, COLORREF crColor
)
1399 FIXME("(%p, %08lx): stub\n", hdc
, crColor
);
1400 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);