2 * GDI Device Context functions
4 * Copyright 1993 Alexandre Julliard
6 static char Copyright[] = "Copyright Alexandre Julliard, 1993";
18 static DeviceCaps * displayDevCaps = NULL;
20 extern const WIN_DC_INFO DCVAL_defaultValues;
21 extern void CLIPPING_UpdateGCRegion( DC * dc ); /* objects/clipping.c */
23 /* ROP code to GC function conversion */
24 const int DC_XROPfunction[16] =
26 GXclear, /* R2_BLACK */
27 GXnor, /* R2_NOTMERGEPEN */
28 GXandInverted, /* R2_MASKNOTPEN */
29 GXcopyInverted, /* R2_NOTCOPYPEN */
30 GXandReverse, /* R2_MASKPENNOT */
31 GXinvert, /* R2_NOT */
32 GXxor, /* R2_XORPEN */
33 GXnand, /* R2_NOTMASKPEN */
34 GXand, /* R2_MASKPEN */
35 GXequiv, /* R2_NOTXORPEN */
37 GXorInverted, /* R2_MERGENOTPEN */
38 GXcopy, /* R2_COPYPEN */
39 GXorReverse, /* R2_MERGEPENNOT */
40 GXor, /* R2_MERGEPEN */
45 /***********************************************************************
48 * Fill the device caps structure.
50 void DC_FillDevCaps( DeviceCaps * caps )
52 caps->version = 0x300;
53 caps->technology = DT_RASDISPLAY;
54 caps->horzSize = WidthMMOfScreen(screen) * screenWidth / WidthOfScreen(screen);
55 caps->vertSize = HeightMMOfScreen(screen) * screenHeight / HeightOfScreen(screen);
56 caps->horzRes = screenWidth;
57 caps->vertRes = screenHeight;
58 caps->bitsPixel = screenDepth;
64 caps->numColors = 1 << caps->bitsPixel;
65 caps->pdeviceSize = 0;
66 caps->curveCaps = CC_CIRCLES | CC_PIE | CC_CHORD | CC_ELLIPSES |
67 CC_WIDE | CC_STYLED | CC_WIDESTYLED |
68 CC_INTERIORS | CC_ROUNDRECT;
69 caps->lineCaps = LC_POLYLINE | LC_MARKER | LC_POLYMARKER | LC_WIDE |
70 LC_STYLED | LC_WIDESTYLED | LC_INTERIORS;
71 caps->polygonalCaps = PC_POLYGON | PC_RECTANGLE | PC_WINDPOLYGON |
72 PC_SCANLINE | PC_WIDE | PC_STYLED |
73 PC_WIDESTYLED | PC_INTERIORS;
74 caps->textCaps = TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
75 TC_IA_ABLE | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE;
76 caps->clipCaps = CP_REGION;
77 caps->rasterCaps = RC_BITBLT | RC_BANDING | RC_SCALING | RC_BITMAP64 |
78 RC_DI_BITMAP | RC_PALETTE | RC_DIBTODEV | RC_BIGFONT|
79 RC_STRETCHBLT | RC_STRETCHDIB | RC_DEVBITS;
80 caps->aspectX = 36; /* ?? */
81 caps->aspectY = 36; /* ?? */
83 caps->logPixelsX = (int)(caps->horzRes * 25.4 / caps->horzSize);
84 caps->logPixelsY = (int)(caps->vertRes * 25.4 / caps->vertSize);
85 caps->sizePalette = DefaultVisual(display,DefaultScreen(display))->map_entries;
86 caps->numReserved = 0;
91 /***********************************************************************
94 * Setup device-specific DC values for a newly created DC.
96 void DC_InitDC( HDC hdc )
98 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
99 RealizeDefaultPalette( hdc );
100 SetTextColor( hdc, dc->w.textColor );
101 SetBkColor( hdc, dc->w.backgroundColor );
102 SelectObject( hdc, dc->w.hPen );
103 SelectObject( hdc, dc->w.hBrush );
104 SelectObject( hdc, dc->w.hFont );
105 XSetGraphicsExposures( display, dc->u.x.gc, False );
106 XSetSubwindowMode( display, dc->u.x.gc, IncludeInferiors );
107 CLIPPING_UpdateGCRegion( dc );
111 /***********************************************************************
114 * Setup dc->u.x.gc for drawing operations using current brush.
115 * Return 0 if brush is BS_NULL, 1 otherwise.
117 int DC_SetupGCForBrush( DC * dc )
120 unsigned long mask = 0;
122 if (dc->u.x.brush.style == BS_NULL) return 0;
123 if (dc->u.x.brush.pixel == -1)
125 /* Special case used for monochrome pattern brushes.
126 * We need to swap foreground and background because
127 * Windows does it the wrong way...
129 val.foreground = dc->w.backgroundPixel;
130 val.background = dc->w.textPixel;
134 val.foreground = dc->u.x.brush.pixel;
135 val.background = dc->w.backgroundPixel;
137 val.function = DC_XROPfunction[dc->w.ROPmode-1];
138 val.fill_style = dc->u.x.brush.fillStyle;
139 if (val.fill_style == FillStippled)
141 if (dc->w.backgroundMode==OPAQUE) val.fill_style = FillOpaqueStippled;
142 val.stipple = dc->u.x.brush.pixmap;
145 else if (val.fill_style == FillTiled)
147 val.tile = dc->u.x.brush.pixmap;
150 val.ts_x_origin = dc->w.DCOrgX + dc->w.brushOrgX;
151 val.ts_y_origin = dc->w.DCOrgY + dc->w.brushOrgY;
152 val.fill_rule = (dc->w.polyFillMode==WINDING) ? WindingRule : EvenOddRule;
153 XChangeGC( display, dc->u.x.gc,
154 GCFunction | GCForeground | GCBackground | GCFillStyle |
155 GCFillRule | GCTileStipXOrigin | GCTileStipYOrigin | mask,
161 /***********************************************************************
164 * Setup dc->u.x.gc for drawing operations using current pen.
165 * Return 0 if pen is PS_NULL, 1 otherwise.
167 int DC_SetupGCForPen( DC * dc )
171 if (dc->u.x.pen.style == PS_NULL) return 0;
172 val.function = DC_XROPfunction[dc->w.ROPmode-1];
173 val.foreground = dc->u.x.pen.pixel;
174 val.background = dc->w.backgroundPixel;
175 val.fill_style = FillSolid;
176 if ((dc->u.x.pen.style!=PS_SOLID) && (dc->u.x.pen.style!=PS_INSIDEFRAME))
178 XSetDashes( display, dc->u.x.gc, 0,
179 dc->u.x.pen.dashes, dc->u.x.pen.dash_len );
180 val.line_style = (dc->w.backgroundMode == OPAQUE) ?
181 LineDoubleDash : LineOnOffDash;
183 else val.line_style = LineSolid;
184 val.line_width = dc->u.x.pen.width;
185 val.cap_style = CapRound;
186 val.join_style = JoinBevel;
187 XChangeGC( display, dc->u.x.gc,
188 GCFunction | GCForeground | GCBackground | GCLineWidth |
189 GCLineStyle | GCCapStyle | GCJoinStyle | GCFillStyle, &val );
194 /***********************************************************************
197 * Setup dc->u.x.gc for text drawing operations.
198 * Return 0 if the font is null, 1 otherwise.
200 int DC_SetupGCForText( DC * dc )
204 if (!dc->u.x.font.fstruct)
206 FONT_SelectObject(dc, STOCK_SYSTEM_FONT, NULL);
208 val.function = GXcopy; /* Text is always GXcopy */
209 val.foreground = dc->w.textPixel;
210 val.background = dc->w.backgroundPixel;
211 val.fill_style = FillSolid;
212 val.font = dc->u.x.font.fstruct->fid;
213 XChangeGC( display, dc->u.x.gc,
214 GCFunction | GCForeground | GCBackground | GCFillStyle |
220 /***********************************************************************
221 * GetDCState (GDI.179)
223 HDC GetDCState( HDC hdc )
228 if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
229 if (!(handle = GDI_AllocObject( sizeof(DC), DC_MAGIC ))) return 0;
230 newdc = (DC *) GDI_HEAP_ADDR( handle );
232 dprintf_dc(stddeb, "GetDCState(%d): returning %d\n", hdc, handle );
234 memcpy( &newdc->w, &dc->w, sizeof(dc->w) );
235 memcpy( &newdc->u.x.pen, &dc->u.x.pen, sizeof(dc->u.x.pen) );
236 newdc->saveLevel = 0;
237 newdc->w.flags |= DC_SAVED;
239 newdc->w.hGCClipRgn = 0;
240 newdc->w.hVisRgn = CreateRectRgn( 0, 0, 0, 0 );
241 CombineRgn( newdc->w.hVisRgn, dc->w.hVisRgn, 0, RGN_COPY );
244 newdc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
245 CombineRgn( newdc->w.hClipRgn, dc->w.hClipRgn, 0, RGN_COPY );
247 COLOR_SetMapping( newdc, dc->u.x.pal.hMapping, dc->u.x.pal.mappingSize );
252 /***********************************************************************
253 * SetDCState (GDI.180)
255 void SetDCState( HDC hdc, HDC hdcs )
258 HRGN hVisRgn, hClipRgn, hGCClipRgn;
260 if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return;
261 if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) return;
262 if (!dcs->w.flags & DC_SAVED) return;
263 dprintf_dc(stddeb, "SetDCState: %d %d\n", hdc, hdcs );
265 /* Save the regions before overwriting everything */
266 hVisRgn = dc->w.hVisRgn;
267 hClipRgn = dc->w.hClipRgn;
268 hGCClipRgn = dc->w.hGCClipRgn;
269 memcpy( &dc->w, &dcs->w, sizeof(dc->w) );
270 memcpy( &dc->u.x.pen, &dcs->u.x.pen, sizeof(dc->u.x.pen) );
271 dc->w.flags &= ~DC_SAVED;
273 /* Restore the regions */
274 dc->w.hVisRgn = hVisRgn;
275 dc->w.hClipRgn = hClipRgn;
276 dc->w.hGCClipRgn = hGCClipRgn;
277 CombineRgn( dc->w.hVisRgn, dcs->w.hVisRgn, 0, RGN_COPY );
278 SelectClipRgn( hdc, dcs->w.hClipRgn );
280 SelectObject( hdc, dcs->w.hBrush );
281 SelectObject( hdc, dcs->w.hFont );
282 COLOR_SetMapping( dc, dcs->u.x.pal.hMapping, dcs->u.x.pal.mappingSize );
286 /***********************************************************************
289 int SaveDC( HDC hdc )
294 dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
297 dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
299 MF_MetaParam0(dc, META_SAVEDC);
302 if (!(hdcs = GetDCState( hdc ))) return 0;
303 dcs = (DC *) GDI_HEAP_ADDR( hdcs );
304 dcs->header.hNext = dc->header.hNext;
305 dc->header.hNext = hdcs;
306 dprintf_dc(stddeb, "SaveDC(%d): returning %d\n", hdc, dc->saveLevel+1 );
307 return ++dc->saveLevel;
311 /***********************************************************************
314 BOOL RestoreDC( HDC hdc, short level )
318 dprintf_dc(stddeb, "RestoreDC: %d %d\n", hdc, level );
319 dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
322 dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
323 if (!dc) return FALSE;
324 if (level != -1) return FALSE;
325 MF_MetaParam1(dc, META_RESTOREDC, level);
328 if (level == -1) level = dc->saveLevel;
329 if ((level < 1) || (level > (short)dc->saveLevel)) return FALSE;
331 while ((short)dc->saveLevel >= level)
333 HDC hdcs = dc->header.hNext;
334 if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) return FALSE;
335 dc->header.hNext = dcs->header.hNext;
336 if ((short)--dc->saveLevel < level) SetDCState( hdc, hdcs );
343 /***********************************************************************
346 HDC CreateDC( LPSTR driver, LPSTR device, LPSTR output, LPSTR initData )
351 handle = GDI_AllocObject( sizeof(DC), DC_MAGIC );
352 if (!handle) return 0;
353 dc = (DC *) GDI_HEAP_ADDR( handle );
355 dprintf_dc(stddeb, "CreateDC(%s %s %s): returning %d\n",
356 driver, device, output, handle );
360 displayDevCaps = (DeviceCaps *) malloc( sizeof(DeviceCaps) );
361 DC_FillDevCaps( displayDevCaps );
365 memcpy( &dc->w, &DCVAL_defaultValues, sizeof(DCVAL_defaultValues) );
366 memset( &dc->u.x, 0, sizeof(dc->u.x) );
368 dc->u.x.drawable = rootWindow;
369 dc->u.x.gc = XCreateGC( display, dc->u.x.drawable, 0, NULL );
371 dc->w.devCaps = displayDevCaps;
372 dc->w.bitsPerPixel = displayDevCaps->bitsPixel;
373 dc->w.hVisRgn = CreateRectRgn( 0, 0, displayDevCaps->horzRes,
374 displayDevCaps->vertRes );
377 GDI_HEAP_FREE( handle );
387 /***********************************************************************
390 HDC CreateIC( LPSTR driver, LPSTR device, LPSTR output, LPSTR initData )
392 /* Nothing special yet for ICs */
393 return CreateDC( driver, device, output, initData );
397 /***********************************************************************
398 * CreateCompatibleDC (GDI.52)
400 HDC CreateCompatibleDC( HDC hdc )
407 handle = GDI_AllocObject( sizeof(DC), DC_MAGIC );
408 if (!handle) return 0;
409 dc = (DC *) GDI_HEAP_ADDR( handle );
411 dprintf_dc(stddeb, "CreateCompatibleDC(%d): returning %d\n", hdc, handle );
413 /* Create default bitmap */
414 if (!(hbitmap = CreateBitmap( 1, 1, 1, 1, NULL )))
416 GDI_HEAP_FREE( handle );
419 bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
422 memcpy( &dc->w, &DCVAL_defaultValues, sizeof(DCVAL_defaultValues) );
423 memset( &dc->u.x, 0, sizeof(dc->u.x) );
425 dc->u.x.drawable = bmp->pixmap;
426 dc->u.x.gc = XCreateGC( display, dc->u.x.drawable, 0, NULL );
427 dc->w.flags = DC_MEMORY;
428 dc->w.bitsPerPixel = 1;
429 dc->w.devCaps = displayDevCaps;
430 dc->w.hBitmap = hbitmap;
431 dc->w.hVisRgn = CreateRectRgn( 0, 0, 1, 1 );
435 DeleteObject( hbitmap );
436 GDI_HEAP_FREE( handle );
446 /***********************************************************************
449 BOOL DeleteDC( HDC hdc )
451 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
452 if (!dc) return FALSE;
454 dprintf_dc(stddeb, "DeleteDC: %d\n", hdc );
456 while (dc->saveLevel)
459 HDC hdcs = dc->header.hNext;
460 if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) break;
461 dc->header.hNext = dcs->header.hNext;
466 if (!(dc->w.flags & DC_SAVED))
468 SelectObject( hdc, STOCK_BLACK_PEN );
469 SelectObject( hdc, STOCK_WHITE_BRUSH );
470 SelectObject( hdc, STOCK_SYSTEM_FONT );
471 XFreeGC( display, dc->u.x.gc );
474 if (dc->w.flags & DC_MEMORY) DeleteObject( dc->w.hBitmap );
476 if (dc->w.hClipRgn) DeleteObject( dc->w.hClipRgn );
477 if (dc->w.hVisRgn) DeleteObject( dc->w.hVisRgn );
478 if (dc->w.hGCClipRgn) DeleteObject( dc->w.hGCClipRgn );
480 return GDI_FreeObject( hdc );
484 /***********************************************************************
485 * GetDeviceCaps (GDI.80)
487 int GetDeviceCaps( HDC hdc, WORD cap )
489 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
492 if (cap > sizeof(DeviceCaps)-sizeof(WORD)) return 0;
494 dprintf_dc(stddeb, "GetDeviceCaps(%d,%d): returning %d\n",
495 hdc, cap, *(WORD *)(((char *)dc->w.devCaps) + cap) );
496 return *(WORD *)(((char *)dc->w.devCaps) + cap);
500 /***********************************************************************
503 COLORREF SetBkColor( HDC hdc, COLORREF color )
506 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
509 dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
510 if (!dc) return 0x80000000;
511 MF_MetaParam2(dc, META_SETBKCOLOR, HIWORD(color), LOWORD(color));
515 oldColor = dc->w.backgroundColor;
516 dc->w.backgroundColor = color;
517 dc->w.backgroundPixel = COLOR_ToPhysical( dc, color );
522 /***********************************************************************
523 * SetTextColor (GDI.9)
525 COLORREF SetTextColor( HDC hdc, COLORREF color )
528 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
531 dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
532 if (!dc) return 0x80000000;
533 MF_MetaParam2(dc, META_SETTEXTCOLOR, HIWORD(color), LOWORD(color));
537 oldColor = dc->w.textColor;
538 dc->w.textColor = color;
539 dc->w.textPixel = COLOR_ToPhysical( dc, color );
544 /***********************************************************************
547 DWORD GetDCOrg( HDC hdc )
550 int x, y, w, h, border, depth;
552 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
554 if (dc->w.flags & DC_MEMORY) return 0;
555 XGetGeometry( display, dc->u.x.drawable, &root,
556 &x, &y, &w, &h, &border, &depth );
557 return MAKELONG( dc->w.DCOrgX + (WORD)x, dc->w.DCOrgY + (WORD)y );
561 /***********************************************************************
564 DWORD SetDCOrg( HDC hdc, short x, short y )
567 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
569 prevOrg = dc->w.DCOrgX | (dc->w.DCOrgY << 16);