2 * GDI Device Context functions
4 * Copyright 1993 Alexandre Julliard
8 #ifndef X_DISPLAY_MISSING
11 #endif /* !defined(X_DISPLAY_MISSING) */
18 #include "metafiledrv.h"
22 #include "wine/winuser16.h"
24 DEFAULT_DEBUG_CHANNEL(dc
)
26 /***********************************************************************
29 * Fill the WIN_DC_INFO structure.
31 static void DC_Init_DC_INFO( WIN_DC_INFO
*win_dc_info
)
33 win_dc_info
->flags
= 0;
34 win_dc_info
->devCaps
= NULL
;
35 win_dc_info
->hClipRgn
= 0;
36 win_dc_info
->hVisRgn
= 0;
37 win_dc_info
->hGCClipRgn
= 0;
38 win_dc_info
->hPen
= STOCK_BLACK_PEN
;
39 win_dc_info
->hBrush
= STOCK_WHITE_BRUSH
;
40 win_dc_info
->hFont
= STOCK_SYSTEM_FONT
;
41 win_dc_info
->hBitmap
= 0;
42 win_dc_info
->hFirstBitmap
= 0;
43 win_dc_info
->hDevice
= 0;
44 win_dc_info
->hPalette
= STOCK_DEFAULT_PALETTE
;
45 win_dc_info
->ROPmode
= R2_COPYPEN
;
46 win_dc_info
->polyFillMode
= ALTERNATE
;
47 win_dc_info
->stretchBltMode
= BLACKONWHITE
;
48 win_dc_info
->relAbsMode
= ABSOLUTE
;
49 win_dc_info
->backgroundMode
= OPAQUE
;
50 win_dc_info
->backgroundColor
= RGB( 255, 255, 255 );
51 win_dc_info
->textColor
= RGB( 0, 0, 0 );
52 win_dc_info
->brushOrgX
= 0;
53 win_dc_info
->brushOrgY
= 0;
54 win_dc_info
->textAlign
= TA_LEFT
| TA_TOP
| TA_NOUPDATECP
;
55 win_dc_info
->charExtra
= 0;
56 win_dc_info
->breakTotalExtra
= 0;
57 win_dc_info
->breakCount
= 0;
58 win_dc_info
->breakExtra
= 0;
59 win_dc_info
->breakRem
= 0;
60 win_dc_info
->bitsPerPixel
= 1;
61 win_dc_info
->MapMode
= MM_TEXT
;
62 win_dc_info
->GraphicsMode
= GM_COMPATIBLE
;
63 win_dc_info
->DCOrgX
= 0;
64 win_dc_info
->DCOrgY
= 0;
65 win_dc_info
->lpfnPrint
= NULL
;
66 win_dc_info
->CursPosX
= 0;
67 win_dc_info
->CursPosY
= 0;
68 win_dc_info
->ArcDirection
= AD_COUNTERCLOCKWISE
;
69 win_dc_info
->xformWorld2Wnd
.eM11
= 1.0f
;
70 win_dc_info
->xformWorld2Wnd
.eM12
= 0.0f
;
71 win_dc_info
->xformWorld2Wnd
.eM21
= 0.0f
;
72 win_dc_info
->xformWorld2Wnd
.eM22
= 1.0f
;
73 win_dc_info
->xformWorld2Wnd
.eDx
= 0.0f
;
74 win_dc_info
->xformWorld2Wnd
.eDy
= 0.0f
;
75 win_dc_info
->xformWorld2Vport
= win_dc_info
->xformWorld2Wnd
;
76 win_dc_info
->xformVport2World
= win_dc_info
->xformWorld2Wnd
;
77 win_dc_info
->vport2WorldValid
= TRUE
;
79 PATH_InitGdiPath(&win_dc_info
->path
);
83 /***********************************************************************
86 DC
*DC_AllocDC( const DC_FUNCTIONS
*funcs
)
91 if (!(hdc
= GDI_AllocObject( sizeof(DC
), DC_MAGIC
))) return NULL
;
92 dc
= (DC
*) GDI_HEAP_LOCK( hdc
);
109 DC_Init_DC_INFO( &dc
->w
);
116 /***********************************************************************
119 DC
*DC_GetDCPtr( HDC hdc
)
121 GDIOBJHDR
*ptr
= (GDIOBJHDR
*)GDI_HEAP_LOCK( hdc
);
122 if (!ptr
) return NULL
;
123 if ((ptr
->wMagic
== DC_MAGIC
) || (ptr
->wMagic
== METAFILE_DC_MAGIC
))
125 GDI_HEAP_UNLOCK( hdc
);
130 /***********************************************************************
133 * Setup device-specific DC values for a newly created DC.
135 void DC_InitDC( DC
* dc
)
137 RealizeDefaultPalette16( dc
->hSelf
);
138 SetTextColor( dc
->hSelf
, dc
->w
.textColor
);
139 SetBkColor( dc
->hSelf
, dc
->w
.backgroundColor
);
140 SelectObject( dc
->hSelf
, dc
->w
.hPen
);
141 SelectObject( dc
->hSelf
, dc
->w
.hBrush
);
142 SelectObject( dc
->hSelf
, dc
->w
.hFont
);
143 CLIPPING_UpdateGCRegion( dc
);
147 /***********************************************************************
150 * Computes the inverse of the transformation xformSrc and stores it to
151 * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
154 static BOOL
DC_InvertXform( const XFORM
*xformSrc
, XFORM
*xformDest
)
158 determinant
= xformSrc
->eM11
*xformSrc
->eM22
-
159 xformSrc
->eM12
*xformSrc
->eM21
;
160 if (determinant
> -1e-12 && determinant
< 1e-12)
163 xformDest
->eM11
= xformSrc
->eM22
/ determinant
;
164 xformDest
->eM12
= -xformSrc
->eM12
/ determinant
;
165 xformDest
->eM21
= -xformSrc
->eM21
/ determinant
;
166 xformDest
->eM22
= xformSrc
->eM11
/ determinant
;
167 xformDest
->eDx
= -xformSrc
->eDx
* xformDest
->eM11
-
168 xformSrc
->eDy
* xformDest
->eM21
;
169 xformDest
->eDy
= -xformSrc
->eDx
* xformDest
->eM12
-
170 xformSrc
->eDy
* xformDest
->eM22
;
176 /***********************************************************************
179 * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
180 * fields of the specified DC by creating a transformation that
181 * represents the current mapping mode and combining it with the DC's
182 * world transform. This function should be called whenever the
183 * parameters associated with the mapping mode (window and viewport
184 * extents and origins) or the world transform change.
186 void DC_UpdateXforms( DC
*dc
)
188 XFORM xformWnd2Vport
;
189 FLOAT scaleX
, scaleY
;
191 /* Construct a transformation to do the window-to-viewport conversion */
192 scaleX
= (FLOAT
)dc
->vportExtX
/ (FLOAT
)dc
->wndExtX
;
193 scaleY
= (FLOAT
)dc
->vportExtY
/ (FLOAT
)dc
->wndExtY
;
194 xformWnd2Vport
.eM11
= scaleX
;
195 xformWnd2Vport
.eM12
= 0.0;
196 xformWnd2Vport
.eM21
= 0.0;
197 xformWnd2Vport
.eM22
= scaleY
;
198 xformWnd2Vport
.eDx
= (FLOAT
)dc
->vportOrgX
-
199 scaleX
* (FLOAT
)dc
->wndOrgX
;
200 xformWnd2Vport
.eDy
= (FLOAT
)dc
->vportOrgY
-
201 scaleY
* (FLOAT
)dc
->wndOrgY
;
203 /* Combine with the world transformation */
204 CombineTransform( &dc
->w
.xformWorld2Vport
, &dc
->w
.xformWorld2Wnd
,
207 /* Create inverse of world-to-viewport transformation */
208 dc
->w
.vport2WorldValid
= DC_InvertXform( &dc
->w
.xformWorld2Vport
,
209 &dc
->w
.xformVport2World
);
213 /***********************************************************************
214 * GetDCState (GDI.179)
216 HDC16 WINAPI
GetDCState16( HDC16 hdc
)
221 if (!(dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
))) return 0;
222 if (!(handle
= GDI_AllocObject( sizeof(DC
), DC_MAGIC
)))
224 GDI_HEAP_UNLOCK( hdc
);
227 newdc
= (DC
*) GDI_HEAP_LOCK( handle
);
229 TRACE(dc
, "(%04x): returning %04x\n", hdc
, handle
);
231 newdc
->w
.flags
= dc
->w
.flags
| DC_SAVED
;
232 newdc
->w
.devCaps
= dc
->w
.devCaps
;
233 newdc
->w
.hPen
= dc
->w
.hPen
;
234 newdc
->w
.hBrush
= dc
->w
.hBrush
;
235 newdc
->w
.hFont
= dc
->w
.hFont
;
236 newdc
->w
.hBitmap
= dc
->w
.hBitmap
;
237 newdc
->w
.hFirstBitmap
= dc
->w
.hFirstBitmap
;
238 newdc
->w
.hDevice
= dc
->w
.hDevice
;
239 newdc
->w
.hPalette
= dc
->w
.hPalette
;
240 newdc
->w
.totalExtent
= dc
->w
.totalExtent
;
241 newdc
->w
.bitsPerPixel
= dc
->w
.bitsPerPixel
;
242 newdc
->w
.ROPmode
= dc
->w
.ROPmode
;
243 newdc
->w
.polyFillMode
= dc
->w
.polyFillMode
;
244 newdc
->w
.stretchBltMode
= dc
->w
.stretchBltMode
;
245 newdc
->w
.relAbsMode
= dc
->w
.relAbsMode
;
246 newdc
->w
.backgroundMode
= dc
->w
.backgroundMode
;
247 newdc
->w
.backgroundColor
= dc
->w
.backgroundColor
;
248 newdc
->w
.textColor
= dc
->w
.textColor
;
249 newdc
->w
.brushOrgX
= dc
->w
.brushOrgX
;
250 newdc
->w
.brushOrgY
= dc
->w
.brushOrgY
;
251 newdc
->w
.textAlign
= dc
->w
.textAlign
;
252 newdc
->w
.charExtra
= dc
->w
.charExtra
;
253 newdc
->w
.breakTotalExtra
= dc
->w
.breakTotalExtra
;
254 newdc
->w
.breakCount
= dc
->w
.breakCount
;
255 newdc
->w
.breakExtra
= dc
->w
.breakExtra
;
256 newdc
->w
.breakRem
= dc
->w
.breakRem
;
257 newdc
->w
.MapMode
= dc
->w
.MapMode
;
258 newdc
->w
.GraphicsMode
= dc
->w
.GraphicsMode
;
260 /* Apparently, the DC origin is not changed by [GS]etDCState */
261 newdc
->w
.DCOrgX
= dc
->w
.DCOrgX
;
262 newdc
->w
.DCOrgY
= dc
->w
.DCOrgY
;
264 newdc
->w
.CursPosX
= dc
->w
.CursPosX
;
265 newdc
->w
.CursPosY
= dc
->w
.CursPosY
;
266 newdc
->w
.ArcDirection
= dc
->w
.ArcDirection
;
267 newdc
->w
.xformWorld2Wnd
= dc
->w
.xformWorld2Wnd
;
268 newdc
->w
.xformWorld2Vport
= dc
->w
.xformWorld2Vport
;
269 newdc
->w
.xformVport2World
= dc
->w
.xformVport2World
;
270 newdc
->w
.vport2WorldValid
= dc
->w
.vport2WorldValid
;
271 newdc
->wndOrgX
= dc
->wndOrgX
;
272 newdc
->wndOrgY
= dc
->wndOrgY
;
273 newdc
->wndExtX
= dc
->wndExtX
;
274 newdc
->wndExtY
= dc
->wndExtY
;
275 newdc
->vportOrgX
= dc
->vportOrgX
;
276 newdc
->vportOrgY
= dc
->vportOrgY
;
277 newdc
->vportExtX
= dc
->vportExtX
;
278 newdc
->vportExtY
= dc
->vportExtY
;
280 newdc
->hSelf
= (HDC
)handle
;
281 newdc
->saveLevel
= 0;
283 PATH_InitGdiPath( &newdc
->w
.path
);
285 /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
287 newdc
->w
.hGCClipRgn
= newdc
->w
.hVisRgn
= 0;
290 newdc
->w
.hClipRgn
= CreateRectRgn( 0, 0, 0, 0 );
291 CombineRgn( newdc
->w
.hClipRgn
, dc
->w
.hClipRgn
, 0, RGN_COPY
);
294 newdc
->w
.hClipRgn
= 0;
295 GDI_HEAP_UNLOCK( handle
);
296 GDI_HEAP_UNLOCK( hdc
);
301 /***********************************************************************
302 * SetDCState (GDI.180)
304 void WINAPI
SetDCState16( HDC16 hdc
, HDC16 hdcs
)
308 if (!(dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
))) return;
309 if (!(dcs
= (DC
*) GDI_GetObjPtr( hdcs
, DC_MAGIC
)))
311 GDI_HEAP_UNLOCK( hdc
);
314 if (!dcs
->w
.flags
& DC_SAVED
)
316 GDI_HEAP_UNLOCK( hdc
);
317 GDI_HEAP_UNLOCK( hdcs
);
320 TRACE(dc
, "%04x %04x\n", hdc
, hdcs
);
322 dc
->w
.flags
= dcs
->w
.flags
& ~DC_SAVED
;
323 dc
->w
.devCaps
= dcs
->w
.devCaps
;
324 dc
->w
.hFirstBitmap
= dcs
->w
.hFirstBitmap
;
325 dc
->w
.hDevice
= dcs
->w
.hDevice
;
326 dc
->w
.totalExtent
= dcs
->w
.totalExtent
;
327 dc
->w
.ROPmode
= dcs
->w
.ROPmode
;
328 dc
->w
.polyFillMode
= dcs
->w
.polyFillMode
;
329 dc
->w
.stretchBltMode
= dcs
->w
.stretchBltMode
;
330 dc
->w
.relAbsMode
= dcs
->w
.relAbsMode
;
331 dc
->w
.backgroundMode
= dcs
->w
.backgroundMode
;
332 dc
->w
.backgroundColor
= dcs
->w
.backgroundColor
;
333 dc
->w
.textColor
= dcs
->w
.textColor
;
334 dc
->w
.brushOrgX
= dcs
->w
.brushOrgX
;
335 dc
->w
.brushOrgY
= dcs
->w
.brushOrgY
;
336 dc
->w
.textAlign
= dcs
->w
.textAlign
;
337 dc
->w
.charExtra
= dcs
->w
.charExtra
;
338 dc
->w
.breakTotalExtra
= dcs
->w
.breakTotalExtra
;
339 dc
->w
.breakCount
= dcs
->w
.breakCount
;
340 dc
->w
.breakExtra
= dcs
->w
.breakExtra
;
341 dc
->w
.breakRem
= dcs
->w
.breakRem
;
342 dc
->w
.MapMode
= dcs
->w
.MapMode
;
343 dc
->w
.GraphicsMode
= dcs
->w
.GraphicsMode
;
345 /* Apparently, the DC origin is not changed by [GS]etDCState */
346 dc
->w
.DCOrgX
= dcs
->w
.DCOrgX
;
347 dc
->w
.DCOrgY
= dcs
->w
.DCOrgY
;
349 dc
->w
.CursPosX
= dcs
->w
.CursPosX
;
350 dc
->w
.CursPosY
= dcs
->w
.CursPosY
;
351 dc
->w
.ArcDirection
= dcs
->w
.ArcDirection
;
352 dc
->w
.xformWorld2Wnd
= dcs
->w
.xformWorld2Wnd
;
353 dc
->w
.xformWorld2Vport
= dcs
->w
.xformWorld2Vport
;
354 dc
->w
.xformVport2World
= dcs
->w
.xformVport2World
;
355 dc
->w
.vport2WorldValid
= dcs
->w
.vport2WorldValid
;
357 dc
->wndOrgX
= dcs
->wndOrgX
;
358 dc
->wndOrgY
= dcs
->wndOrgY
;
359 dc
->wndExtX
= dcs
->wndExtX
;
360 dc
->wndExtY
= dcs
->wndExtY
;
361 dc
->vportOrgX
= dcs
->vportOrgX
;
362 dc
->vportOrgY
= dcs
->vportOrgY
;
363 dc
->vportExtX
= dcs
->vportExtX
;
364 dc
->vportExtY
= dcs
->vportExtY
;
366 if (!(dc
->w
.flags
& DC_MEMORY
)) dc
->w
.bitsPerPixel
= dcs
->w
.bitsPerPixel
;
370 if (!dc
->w
.hClipRgn
) dc
->w
.hClipRgn
= CreateRectRgn( 0, 0, 0, 0 );
371 CombineRgn( dc
->w
.hClipRgn
, dcs
->w
.hClipRgn
, 0, RGN_COPY
);
375 if (dc
->w
.hClipRgn
) DeleteObject16( dc
->w
.hClipRgn
);
378 CLIPPING_UpdateGCRegion( dc
);
380 SelectObject( hdc
, dcs
->w
.hBitmap
);
381 SelectObject( hdc
, dcs
->w
.hBrush
);
382 SelectObject( hdc
, dcs
->w
.hFont
);
383 SelectObject( hdc
, dcs
->w
.hPen
);
384 SetBkColor( hdc
, dcs
->w
.backgroundColor
);
385 SetTextColor( hdc
, dcs
->w
.textColor
);
386 GDISelectPalette16( hdc
, dcs
->w
.hPalette
, FALSE
);
387 GDI_HEAP_UNLOCK( hdc
);
388 GDI_HEAP_UNLOCK( hdcs
);
392 /***********************************************************************
395 INT16 WINAPI
SaveDC16( HDC16 hdc
)
397 return (INT16
)SaveDC( hdc
);
401 /***********************************************************************
402 * SaveDC32 (GDI32.292)
404 INT WINAPI
SaveDC( HDC hdc
)
410 dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
413 dc
= (DC
*)GDI_GetObjPtr(hdc
, METAFILE_DC_MAGIC
);
415 MFDRV_MetaParam0(dc
, META_SAVEDC
);
416 GDI_HEAP_UNLOCK( hdc
);
419 if (!(hdcs
= GetDCState16( hdc
)))
421 GDI_HEAP_UNLOCK( hdc
);
424 dcs
= (DC
*) GDI_HEAP_LOCK( hdcs
);
426 /* Copy path. The reason why path saving / restoring is in SaveDC/
427 * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
428 * functions are only in Win16 (which doesn't have paths) and that
429 * SetDCState doesn't allow us to signal an error (which can happen
430 * when copying paths).
432 if (!PATH_AssignGdiPath( &dcs
->w
.path
, &dc
->w
.path
))
434 GDI_HEAP_UNLOCK( hdc
);
435 GDI_HEAP_UNLOCK( hdcs
);
440 dcs
->header
.hNext
= dc
->header
.hNext
;
441 dc
->header
.hNext
= hdcs
;
442 TRACE(dc
, "(%04x): returning %d\n", hdc
, dc
->saveLevel
+1 );
443 ret
= ++dc
->saveLevel
;
444 GDI_HEAP_UNLOCK( hdcs
);
445 GDI_HEAP_UNLOCK( hdc
);
450 /***********************************************************************
451 * RestoreDC16 (GDI.39)
453 BOOL16 WINAPI
RestoreDC16( HDC16 hdc
, INT16 level
)
455 return RestoreDC( hdc
, level
);
459 /***********************************************************************
460 * RestoreDC32 (GDI32.290)
462 BOOL WINAPI
RestoreDC( HDC hdc
, INT level
)
467 TRACE(dc
, "%04x %d\n", hdc
, level
);
468 dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
471 dc
= (DC
*)GDI_GetObjPtr(hdc
, METAFILE_DC_MAGIC
);
472 if (!dc
) return FALSE
;
475 GDI_HEAP_UNLOCK( hdc
);
478 MFDRV_MetaParam1(dc
, META_RESTOREDC
, level
);
479 GDI_HEAP_UNLOCK( hdc
);
482 if (level
== -1) level
= dc
->saveLevel
;
483 if ((level
< 1) || (level
> dc
->saveLevel
))
485 GDI_HEAP_UNLOCK( hdc
);
490 while (dc
->saveLevel
>= level
)
492 HDC16 hdcs
= dc
->header
.hNext
;
493 if (!(dcs
= (DC
*) GDI_GetObjPtr( hdcs
, DC_MAGIC
)))
495 GDI_HEAP_UNLOCK( hdc
);
498 dc
->header
.hNext
= dcs
->header
.hNext
;
499 if (--dc
->saveLevel
< level
)
501 SetDCState16( hdc
, hdcs
);
502 if (!PATH_AssignGdiPath( &dc
->w
.path
, &dcs
->w
.path
))
503 /* FIXME: This might not be quite right, since we're
504 * returning FALSE but still destroying the saved DC state */
509 GDI_HEAP_UNLOCK( hdc
);
514 /***********************************************************************
515 * CreateDC16 (GDI.53)
517 HDC16 WINAPI
CreateDC16( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
518 const DEVMODE16
*initData
)
521 const DC_FUNCTIONS
*funcs
;
523 if (!(funcs
= DRIVER_FindDriver( driver
))) return 0;
524 if (!(dc
= DC_AllocDC( funcs
))) return 0;
527 TRACE(dc
, "(driver=%s, device=%s, output=%s): returning %04x\n",
528 debugstr_a(driver
), debugstr_a(device
), debugstr_a(output
), dc
->hSelf
);
530 if (dc
->funcs
->pCreateDC
&&
531 !dc
->funcs
->pCreateDC( dc
, driver
, device
, output
, initData
))
533 WARN(dc
, "creation aborted by device\n" );
534 GDI_HEAP_FREE( dc
->hSelf
);
539 GDI_HEAP_UNLOCK( dc
->hSelf
);
544 /***********************************************************************
545 * CreateDC32A (GDI32.)
547 HDC WINAPI
CreateDCA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
548 const DEVMODEA
*initData
)
550 return CreateDC16( driver
, device
, output
, (const DEVMODE16
*)initData
);
554 /***********************************************************************
555 * CreateDC32W (GDI32.)
557 HDC WINAPI
CreateDCW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
558 const DEVMODEW
*initData
)
560 LPSTR driverA
= HEAP_strdupWtoA( GetProcessHeap(), 0, driver
);
561 LPSTR deviceA
= HEAP_strdupWtoA( GetProcessHeap(), 0, device
);
562 LPSTR outputA
= HEAP_strdupWtoA( GetProcessHeap(), 0, output
);
563 HDC res
= CreateDC16( driverA
, deviceA
, outputA
,
564 (const DEVMODE16
*)initData
/*FIXME*/ );
565 HeapFree( GetProcessHeap(), 0, driverA
);
566 HeapFree( GetProcessHeap(), 0, deviceA
);
567 HeapFree( GetProcessHeap(), 0, outputA
);
572 /***********************************************************************
573 * CreateIC16 (GDI.153)
575 HDC16 WINAPI
CreateIC16( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
576 const DEVMODE16
* initData
)
578 /* Nothing special yet for ICs */
579 return CreateDC16( driver
, device
, output
, initData
);
583 /***********************************************************************
584 * CreateIC32A (GDI32.49)
586 HDC WINAPI
CreateICA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
587 const DEVMODEA
* initData
)
589 /* Nothing special yet for ICs */
590 return CreateDCA( driver
, device
, output
, initData
);
594 /***********************************************************************
595 * CreateIC32W (GDI32.50)
597 HDC WINAPI
CreateICW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
598 const DEVMODEW
* initData
)
600 /* Nothing special yet for ICs */
601 return CreateDCW( driver
, device
, output
, initData
);
605 /***********************************************************************
606 * CreateCompatibleDC16 (GDI.52)
608 HDC16 WINAPI
CreateCompatibleDC16( HDC16 hdc
)
610 return (HDC16
)CreateCompatibleDC( hdc
);
614 /***********************************************************************
615 * CreateCompatibleDC32 (GDI32.31)
617 HDC WINAPI
CreateCompatibleDC( HDC hdc
)
621 const DC_FUNCTIONS
*funcs
;
623 if ((origDC
= (DC
*)GDI_GetObjPtr( hdc
, DC_MAGIC
))) funcs
= origDC
->funcs
;
624 else funcs
= DRIVER_FindDriver( "DISPLAY" );
625 if (!funcs
) return 0;
627 if (!(dc
= DC_AllocDC( funcs
))) return 0;
629 TRACE(dc
, "(%04x): returning %04x\n",
632 /* Create default bitmap */
633 if (!(hbitmap
= CreateBitmap( 1, 1, 1, 1, NULL
)))
635 GDI_HEAP_FREE( dc
->hSelf
);
638 dc
->w
.flags
= DC_MEMORY
;
639 dc
->w
.bitsPerPixel
= 1;
640 dc
->w
.hBitmap
= hbitmap
;
641 dc
->w
.hFirstBitmap
= hbitmap
;
643 if (dc
->funcs
->pCreateDC
&&
644 !dc
->funcs
->pCreateDC( dc
, NULL
, NULL
, NULL
, NULL
))
646 WARN(dc
, "creation aborted by device\n");
647 DeleteObject( hbitmap
);
648 GDI_HEAP_FREE( dc
->hSelf
);
653 GDI_HEAP_UNLOCK( dc
->hSelf
);
658 /***********************************************************************
659 * DeleteDC16 (GDI.68)
661 BOOL16 WINAPI
DeleteDC16( HDC16 hdc
)
663 return DeleteDC( hdc
);
667 /***********************************************************************
668 * DeleteDC32 (GDI32.67)
670 BOOL WINAPI
DeleteDC( HDC hdc
)
672 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
673 if (!dc
) return FALSE
;
675 TRACE(dc
, "%04x\n", hdc
);
677 while (dc
->saveLevel
)
680 HDC16 hdcs
= dc
->header
.hNext
;
681 if (!(dcs
= (DC
*) GDI_GetObjPtr( hdcs
, DC_MAGIC
))) break;
682 dc
->header
.hNext
= dcs
->header
.hNext
;
687 if (!(dc
->w
.flags
& DC_SAVED
))
689 SelectObject( hdc
, STOCK_BLACK_PEN
);
690 SelectObject( hdc
, STOCK_WHITE_BRUSH
);
691 SelectObject( hdc
, STOCK_SYSTEM_FONT
);
692 if (dc
->w
.flags
& DC_MEMORY
) DeleteObject( dc
->w
.hFirstBitmap
);
693 if (dc
->funcs
->pDeleteDC
) dc
->funcs
->pDeleteDC(dc
);
696 if (dc
->w
.hClipRgn
) DeleteObject( dc
->w
.hClipRgn
);
697 if (dc
->w
.hVisRgn
) DeleteObject( dc
->w
.hVisRgn
);
698 if (dc
->w
.hGCClipRgn
) DeleteObject( dc
->w
.hGCClipRgn
);
700 PATH_DestroyGdiPath(&dc
->w
.path
);
702 return GDI_FreeObject( hdc
);
706 /***********************************************************************
707 * ResetDC16 (GDI.376)
709 HDC16 WINAPI
ResetDC16( HDC16 hdc
, const DEVMODE16
*devmode
)
711 FIXME(dc
, "stub\n" );
716 /***********************************************************************
717 * ResetDC32A (GDI32.287)
719 HDC WINAPI
ResetDCA( HDC hdc
, const DEVMODEA
*devmode
)
721 FIXME(dc
, "stub\n" );
726 /***********************************************************************
727 * ResetDC32W (GDI32.288)
729 HDC WINAPI
ResetDCW( HDC hdc
, const DEVMODEW
*devmode
)
731 FIXME(dc
, "stub\n" );
736 /***********************************************************************
737 * GetDeviceCaps16 (GDI.80)
739 INT16 WINAPI
GetDeviceCaps16( HDC16 hdc
, INT16 cap
)
741 return GetDeviceCaps( hdc
, cap
);
745 /***********************************************************************
746 * GetDeviceCaps32 (GDI32.171)
748 INT WINAPI
GetDeviceCaps( HDC hdc
, INT cap
)
750 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
755 if ((cap
< 0) || (cap
> sizeof(DeviceCaps
)-sizeof(WORD
)))
757 GDI_HEAP_UNLOCK( hdc
);
761 TRACE(dc
, "(%04x,%d): returning %d\n",
762 hdc
, cap
, *(WORD
*)(((char *)dc
->w
.devCaps
) + cap
) );
763 ret
= *(WORD
*)(((char *)dc
->w
.devCaps
) + cap
);
764 GDI_HEAP_UNLOCK( hdc
);
769 /***********************************************************************
770 * SetBkColor16 (GDI.1)
772 COLORREF WINAPI
SetBkColor16( HDC16 hdc
, COLORREF color
)
774 return SetBkColor( hdc
, color
);
778 /***********************************************************************
779 * SetBkColor32 (GDI32.305)
781 COLORREF WINAPI
SetBkColor( HDC hdc
, COLORREF color
)
784 DC
* dc
= DC_GetDCPtr( hdc
);
786 if (!dc
) return 0x80000000;
787 if (dc
->funcs
->pSetBkColor
)
788 oldColor
= dc
->funcs
->pSetBkColor(dc
, color
);
790 oldColor
= dc
->w
.backgroundColor
;
791 dc
->w
.backgroundColor
= color
;
793 GDI_HEAP_UNLOCK( hdc
);
798 /***********************************************************************
799 * SetTextColor16 (GDI.9)
801 COLORREF WINAPI
SetTextColor16( HDC16 hdc
, COLORREF color
)
803 return SetTextColor( hdc
, color
);
807 /***********************************************************************
808 * SetTextColor32 (GDI32.338)
810 COLORREF WINAPI
SetTextColor( HDC hdc
, COLORREF color
)
813 DC
* dc
= DC_GetDCPtr( hdc
);
815 if (!dc
) return 0x80000000;
816 if (dc
->funcs
->pSetTextColor
)
817 oldColor
= dc
->funcs
->pSetTextColor(dc
, color
);
819 oldColor
= dc
->w
.textColor
;
820 dc
->w
.textColor
= color
;
822 GDI_HEAP_UNLOCK( hdc
);
827 /***********************************************************************
828 * SetTextAlign16 (GDI.346)
830 UINT16 WINAPI
SetTextAlign16( HDC16 hdc
, UINT16 textAlign
)
832 return SetTextAlign( hdc
, textAlign
);
836 /***********************************************************************
837 * SetTextAlign32 (GDI32.336)
839 UINT WINAPI
SetTextAlign( HDC hdc
, UINT textAlign
)
842 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
845 if (!(dc
= (DC
*)GDI_GetObjPtr( hdc
, METAFILE_DC_MAGIC
))) return 0;
846 MFDRV_MetaParam1( dc
, META_SETTEXTALIGN
, textAlign
);
847 GDI_HEAP_UNLOCK( hdc
);
850 prevAlign
= dc
->w
.textAlign
;
851 dc
->w
.textAlign
= textAlign
;
852 GDI_HEAP_UNLOCK( hdc
);
857 /***********************************************************************
858 * GetDCOrgEx (GDI32.168)
860 BOOL WINAPI
GetDCOrgEx( HDC hDC
, LPPOINT lpp
)
864 if (!lpp
) return FALSE
;
865 if (!(dc
= (DC
*) GDI_GetObjPtr( hDC
, DC_MAGIC
))) return FALSE
;
867 #ifndef X_DISPLAY_MISSING
868 if (!(dc
->w
.flags
& DC_MEMORY
))
870 X11DRV_PDEVICE
*physDev
;
872 int w
, h
, border
, depth
;
874 physDev
= (X11DRV_PDEVICE
*) dc
->physDev
;
876 /* FIXME: this is not correct for managed windows */
877 TSXGetGeometry( display
, physDev
->drawable
, &root
,
878 (int*)&lpp
->x
, (int*)&lpp
->y
, &w
, &h
, &border
, &depth
);
881 #endif /* !defined(X_DISPLAY_MISSING) */
884 lpp
->x
+= dc
->w
.DCOrgX
; lpp
->y
+= dc
->w
.DCOrgY
;
885 GDI_HEAP_UNLOCK( hDC
);
890 /***********************************************************************
893 DWORD WINAPI
GetDCOrg16( HDC16 hdc
)
896 if( GetDCOrgEx( hdc
, &pt
) )
897 return MAKELONG( (WORD
)pt
.x
, (WORD
)pt
.y
);
902 /***********************************************************************
905 DWORD WINAPI
SetDCOrg16( HDC16 hdc
, INT16 x
, INT16 y
)
908 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
910 prevOrg
= dc
->w
.DCOrgX
| (dc
->w
.DCOrgY
<< 16);
913 GDI_HEAP_UNLOCK( hdc
);
918 /***********************************************************************
919 * GetGraphicsMode (GDI32.188)
921 INT WINAPI
GetGraphicsMode( HDC hdc
)
923 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
925 return dc
->w
.GraphicsMode
;
929 /***********************************************************************
930 * SetGraphicsMode (GDI32.317)
932 INT WINAPI
SetGraphicsMode( HDC hdc
, INT mode
)
935 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
937 /* One would think that setting the graphics mode to GM_COMPATIBLE
938 * would also reset the world transformation matrix to the unity
939 * matrix. However, in Windows, this is not the case. This doesn't
940 * make a lot of sense to me, but that's the way it is.
944 if ((mode
<= 0) || (mode
> GM_LAST
)) return 0;
945 ret
= dc
->w
.GraphicsMode
;
946 dc
->w
.GraphicsMode
= mode
;
951 /***********************************************************************
952 * GetArcDirection16 (GDI.524)
954 INT16 WINAPI
GetArcDirection16( HDC16 hdc
)
956 return GetArcDirection( (HDC
)hdc
);
960 /***********************************************************************
961 * GetArcDirection32 (GDI32.141)
963 INT WINAPI
GetArcDirection( HDC hdc
)
965 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
970 return dc
->w
.ArcDirection
;
974 /***********************************************************************
975 * SetArcDirection16 (GDI.525)
977 INT16 WINAPI
SetArcDirection16( HDC16 hdc
, INT16 nDirection
)
979 return SetArcDirection( (HDC
)hdc
, (INT
)nDirection
);
983 /***********************************************************************
984 * SetArcDirection32 (GDI32.302)
986 INT WINAPI
SetArcDirection( HDC hdc
, INT nDirection
)
988 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
994 if (nDirection
!=AD_COUNTERCLOCKWISE
&& nDirection
!=AD_CLOCKWISE
)
996 SetLastError(ERROR_INVALID_PARAMETER
);
1000 nOldDirection
= dc
->w
.ArcDirection
;
1001 dc
->w
.ArcDirection
= nDirection
;
1003 return nOldDirection
;
1007 /***********************************************************************
1008 * GetWorldTransform (GDI32.244)
1010 BOOL WINAPI
GetWorldTransform( HDC hdc
, LPXFORM xform
)
1012 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
1019 *xform
= dc
->w
.xformWorld2Wnd
;
1025 /***********************************************************************
1026 * SetWorldTransform (GDI32.346)
1028 BOOL WINAPI
SetWorldTransform( HDC hdc
, const XFORM
*xform
)
1030 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
1034 SetLastError( ERROR_INVALID_HANDLE
);
1041 /* Check that graphics mode is GM_ADVANCED */
1042 if (dc
->w
.GraphicsMode
!=GM_ADVANCED
)
1045 dc
->w
.xformWorld2Wnd
= *xform
;
1047 DC_UpdateXforms( dc
);
1053 /****************************************************************************
1054 * ModifyWorldTransform [GDI32.253]
1055 * Modifies the world transformation for a device context.
1058 * hdc [I] Handle to device context
1059 * xform [I] XFORM structure that will be used to modify the world
1061 * iMode [I] Specifies in what way to modify the world transformation
1064 * Resets the world transformation to the identity matrix.
1065 * The parameter xform is ignored.
1067 * Multiplies xform into the world transformation matrix from
1070 * Multiplies xform into the world transformation matrix from
1075 BOOL WINAPI
ModifyWorldTransform( HDC hdc
, const XFORM
*xform
,
1078 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
1080 /* Check for illegal parameters */
1083 SetLastError( ERROR_INVALID_HANDLE
);
1089 /* Check that graphics mode is GM_ADVANCED */
1090 if (dc
->w
.GraphicsMode
!=GM_ADVANCED
)
1096 dc
->w
.xformWorld2Wnd
.eM11
= 1.0f
;
1097 dc
->w
.xformWorld2Wnd
.eM12
= 0.0f
;
1098 dc
->w
.xformWorld2Wnd
.eM21
= 0.0f
;
1099 dc
->w
.xformWorld2Wnd
.eM22
= 1.0f
;
1100 dc
->w
.xformWorld2Wnd
.eDx
= 0.0f
;
1101 dc
->w
.xformWorld2Wnd
.eDy
= 0.0f
;
1103 case MWT_LEFTMULTIPLY
:
1104 CombineTransform( &dc
->w
.xformWorld2Wnd
, xform
,
1105 &dc
->w
.xformWorld2Wnd
);
1107 case MWT_RIGHTMULTIPLY
:
1108 CombineTransform( &dc
->w
.xformWorld2Wnd
, &dc
->w
.xformWorld2Wnd
,
1115 DC_UpdateXforms( dc
);
1121 /****************************************************************************
1122 * CombineTransform [GDI32.20]
1123 * Combines two transformation matrices.
1126 * xformResult [O] Stores the result of combining the two matrices
1127 * xform1 [I] Specifies the first matrix to apply
1128 * xform2 [I] Specifies the second matrix to apply
1131 * The same matrix can be passed in for more than one of the parameters.
1135 BOOL WINAPI
CombineTransform( LPXFORM xformResult
, const XFORM
*xform1
,
1136 const XFORM
*xform2
)
1140 /* Check for illegal parameters */
1141 if (!xformResult
|| !xform1
|| !xform2
)
1144 /* Create the result in a temporary XFORM, since xformResult may be
1145 * equal to xform1 or xform2 */
1146 xformTemp
.eM11
= xform1
->eM11
* xform2
->eM11
+
1147 xform1
->eM12
* xform2
->eM21
;
1148 xformTemp
.eM12
= xform1
->eM11
* xform2
->eM12
+
1149 xform1
->eM12
* xform2
->eM22
;
1150 xformTemp
.eM21
= xform1
->eM21
* xform2
->eM11
+
1151 xform1
->eM22
* xform2
->eM21
;
1152 xformTemp
.eM22
= xform1
->eM21
* xform2
->eM12
+
1153 xform1
->eM22
* xform2
->eM22
;
1154 xformTemp
.eDx
= xform1
->eDx
* xform2
->eM11
+
1155 xform1
->eDy
* xform2
->eM21
+
1157 xformTemp
.eDy
= xform1
->eDx
* xform2
->eM12
+
1158 xform1
->eDy
* xform2
->eM22
+
1161 /* Copy the result to xformResult */
1162 *xformResult
= xformTemp
;
1168 /***********************************************************************
1169 * SetDCHook (GDI.190)
1171 BOOL16 WINAPI
SetDCHook( HDC16 hdc
, FARPROC16 hookProc
, DWORD dwHookData
)
1173 DC
*dc
= (DC
*)GDI_GetObjPtr( hdc
, DC_MAGIC
);
1175 TRACE(dc
, "hookProc %08x, default is %08x\n",
1176 (UINT
)hookProc
, (UINT
)DCHook16
);
1178 if (!dc
) return FALSE
;
1179 dc
->hookProc
= hookProc
;
1180 dc
->dwHookData
= dwHookData
;
1181 GDI_HEAP_UNLOCK( hdc
);
1186 /***********************************************************************
1187 * GetDCHook (GDI.191)
1189 DWORD WINAPI
GetDCHook( HDC16 hdc
, FARPROC16
*phookProc
)
1191 DC
*dc
= (DC
*)GDI_GetObjPtr( hdc
, DC_MAGIC
);
1193 *phookProc
= dc
->hookProc
;
1194 GDI_HEAP_UNLOCK( hdc
);
1195 return dc
->dwHookData
;
1199 /***********************************************************************
1200 * SetHookFlags (GDI.192)
1202 WORD WINAPI
SetHookFlags16(HDC16 hDC
, WORD flags
)
1204 DC
* dc
= (DC
*)GDI_GetObjPtr( hDC
, DC_MAGIC
);
1208 WORD wRet
= dc
->w
.flags
& DC_DIRTY
;
1210 /* "Undocumented Windows" info is slightly confusing.
1213 TRACE(dc
,"hDC %04x, flags %04x\n",hDC
,flags
);
1215 if( flags
& DCHF_INVALIDATEVISRGN
)
1216 dc
->w
.flags
|= DC_DIRTY
;
1217 else if( flags
& DCHF_VALIDATEVISRGN
|| !flags
)
1218 dc
->w
.flags
&= ~DC_DIRTY
;
1219 GDI_HEAP_UNLOCK( hDC
);
1225 /***********************************************************************
1226 * SetICMMode (GDI32.318)
1228 INT WINAPI
SetICMMode(HDC hdc
, INT iEnableICM
)
1230 /*FIXME Asuming that ICM is always off, and cannot be turned on */
1231 if (iEnableICM
== ICM_OFF
) return ICM_OFF
;
1232 if (iEnableICM
== ICM_ON
) return 0;
1233 if (iEnableICM
== ICM_QUERY
) return ICM_OFF
;
1238 /***********************************************************************
1239 * GetColorSpace (GDI32.165)
1241 HCOLORSPACE WINAPI
GetColorSpace(HDC hdc
)
1243 /*FIXME Need to to whatever GetColorSpace actually does */
1247 /***********************************************************************
1248 * GetBoundsRect16 (GDI.194)
1250 UINT16 WINAPI
GetBoundsRect16(HDC16 hdc
, LPRECT16 rect
, UINT16 flags
)
1252 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1255 /***********************************************************************
1256 * GetBoundsRect32 (GDI32.147)
1258 UINT WINAPI
GetBoundsRect(HDC hdc
, LPRECT rect
, UINT flags
)
1260 FIXME(dc
, "(): stub\n");
1261 return DCB_RESET
; /* bounding rectangle always empty */
1264 /***********************************************************************
1265 * SetBoundsRect16 (GDI.193)
1267 UINT16 WINAPI
SetBoundsRect16(HDC16 hdc
, const RECT16
* rect
, UINT16 flags
)
1269 if ( (flags
& DCB_ACCUMULATE
) || (flags
& DCB_ENABLE
) )
1270 FIXME( dc
, "(%04x, %p, %04x): stub\n", hdc
, rect
, flags
);
1272 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1275 /***********************************************************************
1276 * SetBoundsRect32 (GDI32.307)
1278 UINT WINAPI
SetBoundsRect(HDC hdc
, const RECT
* rect
, UINT flags
)
1280 FIXME(dc
, "(): stub\n");
1281 return DCB_DISABLE
; /* bounding rectangle always empty */
1284 /***********************************************************************
1287 * Disables GDI, switches back to text mode.
1288 * We don't have to do anything here,
1289 * just let console support handle everything
1291 void WINAPI
Death16(HDC16 hDC
)
1293 MSG("Death(%04x) called. Application enters text mode...\n", hDC
);
1296 /***********************************************************************
1297 * Resurrection (GDI.122)
1299 * Restores GDI functionality
1301 void WINAPI
Resurrection16(HDC16 hDC
,
1302 WORD w1
, WORD w2
, WORD w3
, WORD w4
, WORD w5
, WORD w6
)
1304 MSG("Resurrection(%04x, %04x, %04x, %04x, %04x, %04x, %04x) called. Application left text mode.\n", hDC
, w1
, w2
, w3
, w4
, w5
, w6
);