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New file, wrapper for IShellBrowser class.
[wine/multimedia.git] / objects / dc.c
blob1976dc2288955f988189dbdca06eeea30cc181ee
1 /*
2 * GDI Device Context functions
3 *
4 * Copyright 1993 Alexandre Julliard
5 *
6 */
7
8 #include <stdlib.h>
9 #include <string.h>
10 #include "dc.h"
11 #include "gdi.h"
12 #include "heap.h"
13 #include "metafile.h"
14 #include "color.h"
15 #include "debug.h"
16 #include "font.h"
17 #include "winerror.h"
18 #include "x11font.h"
19
20 /* ROP code to GC function conversion */
21 const int DC_XROPfunction[16] =
22 {
23 GXclear, /* R2_BLACK */
24 GXnor, /* R2_NOTMERGEPEN */
25 GXandInverted, /* R2_MASKNOTPEN */
26 GXcopyInverted, /* R2_NOTCOPYPEN */
27 GXandReverse, /* R2_MASKPENNOT */
28 GXinvert, /* R2_NOT */
29 GXxor, /* R2_XORPEN */
30 GXnand, /* R2_NOTMASKPEN */
31 GXand, /* R2_MASKPEN */
32 GXequiv, /* R2_NOTXORPEN */
33 GXnoop, /* R2_NOP */
34 GXorInverted, /* R2_MERGENOTPEN */
35 GXcopy, /* R2_COPYPEN */
36 GXorReverse, /* R2_MERGEPENNOT */
37 GXor, /* R2_MERGEPEN */
38 GXset /* R2_WHITE */
39 };
40
41
42 /***********************************************************************
43 * DC_FillDevCaps
44 *
45 * Fill the device caps structure.
46 */
47 void DC_FillDevCaps( DeviceCaps * caps )
48 {
49 caps->version = 0x300;
50 caps->technology = DT_RASDISPLAY;
51 caps->horzSize = WidthMMOfScreen(screen) * screenWidth / WidthOfScreen(screen);
52 caps->vertSize = HeightMMOfScreen(screen) * screenHeight / HeightOfScreen(screen);
53 caps->horzRes = screenWidth;
54 caps->vertRes = screenHeight;
55 caps->bitsPixel = screenDepth;
56 caps->planes = 1;
57 caps->numBrushes = 16+6; /* 16 solid + 6 hatched brushes */
58 caps->numPens = 16; /* 16 solid pens */
59 caps->numMarkers = 0;
60 caps->numFonts = 0;
61 caps->numColors = 100;
62 caps->pdeviceSize = 0;
63 caps->curveCaps = CC_CIRCLES | CC_PIE | CC_CHORD | CC_ELLIPSES |
64 CC_WIDE | CC_STYLED | CC_WIDESTYLED |
65 CC_INTERIORS | CC_ROUNDRECT;
66 caps->lineCaps = LC_POLYLINE | LC_MARKER | LC_POLYMARKER | LC_WIDE |
67 LC_STYLED | LC_WIDESTYLED | LC_INTERIORS;
68 caps->polygonalCaps = PC_POLYGON | PC_RECTANGLE | PC_WINDPOLYGON |
69 PC_SCANLINE | PC_WIDE | PC_STYLED |
70 PC_WIDESTYLED | PC_INTERIORS;
71 caps->textCaps = TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
72 TC_IA_ABLE | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE;
73 caps->clipCaps = CP_REGION;
74 caps->rasterCaps = RC_BITBLT | RC_BANDING | RC_SCALING | RC_BITMAP64 |
75 RC_DI_BITMAP | RC_DIBTODEV | RC_BIGFONT|
76 RC_STRETCHBLT | RC_STRETCHDIB | RC_DEVBITS;
77
78 if( !(COLOR_GetSystemPaletteFlags() & COLOR_VIRTUAL) )
79 caps->rasterCaps |= RC_PALETTE;
80
81 caps->aspectX = 36; /* ?? */
82 caps->aspectY = 36; /* ?? */
83 caps->aspectXY = 51;
84 caps->logPixelsX = (int)(caps->horzRes * 25.4 / caps->horzSize);
85 caps->logPixelsY = (int)(caps->vertRes * 25.4 / caps->vertSize);
86 caps->sizePalette = (caps->rasterCaps & RC_PALETTE)
87 ? DefaultVisual(display,DefaultScreen(display))->map_entries
88 : 0;
89 caps->numReserved = 0;
90 caps->colorRes = 0;
91 }
92
93
94 /***********************************************************************
95 * DC_Init_DC_INFO
96 *
97 * Fill the WIN_DC_INFO structure.
98 */
99 static void DC_Init_DC_INFO( WIN_DC_INFO *win_dc_info )
100 {
101 win_dc_info->flags = 0;
102 win_dc_info->devCaps = NULL;
103 win_dc_info->hClipRgn = 0;
104 win_dc_info->hVisRgn = 0;
105 win_dc_info->hGCClipRgn = 0;
106 win_dc_info->hPen = STOCK_BLACK_PEN;
107 win_dc_info->hBrush = STOCK_WHITE_BRUSH;
108 win_dc_info->hFont = STOCK_SYSTEM_FONT;
109 win_dc_info->hBitmap = 0;
110 win_dc_info->hFirstBitmap = 0;
111 win_dc_info->hDevice = 0;
112 win_dc_info->hPalette = STOCK_DEFAULT_PALETTE;
113 win_dc_info->ROPmode = R2_COPYPEN;
114 win_dc_info->polyFillMode = ALTERNATE;
115 win_dc_info->stretchBltMode = BLACKONWHITE;
116 win_dc_info->relAbsMode = ABSOLUTE;
117 win_dc_info->backgroundMode = OPAQUE;
118 win_dc_info->backgroundColor = RGB( 255, 255, 255 );
119 win_dc_info->textColor = RGB( 0, 0, 0 );
120 win_dc_info->brushOrgX = 0;
121 win_dc_info->brushOrgY = 0;
122 win_dc_info->textAlign = TA_LEFT | TA_TOP | TA_NOUPDATECP;
123 win_dc_info->charExtra = 0;
124 win_dc_info->breakTotalExtra = 0;
125 win_dc_info->breakCount = 0;
126 win_dc_info->breakExtra = 0;
127 win_dc_info->breakRem = 0;
128 win_dc_info->bitsPerPixel = 1;
129 win_dc_info->MapMode = MM_TEXT;
130 win_dc_info->GraphicsMode = GM_COMPATIBLE;
131 win_dc_info->DCOrgX = 0;
132 win_dc_info->DCOrgY = 0;
133 win_dc_info->lpfnPrint = NULL;
134 win_dc_info->CursPosX = 0;
135 win_dc_info->CursPosY = 0;
136 win_dc_info->ArcDirection = AD_COUNTERCLOCKWISE;
137 win_dc_info->xformWorld2Wnd.eM11 = 1.0f;
138 win_dc_info->xformWorld2Wnd.eM12 = 0.0f;
139 win_dc_info->xformWorld2Wnd.eM21 = 0.0f;
140 win_dc_info->xformWorld2Wnd.eM22 = 1.0f;
141 win_dc_info->xformWorld2Wnd.eDx = 0.0f;
142 win_dc_info->xformWorld2Wnd.eDy = 0.0f;
143 win_dc_info->xformWorld2Vport = win_dc_info->xformWorld2Wnd;
144 win_dc_info->xformVport2World = win_dc_info->xformWorld2Wnd;
145 win_dc_info->vport2WorldValid = TRUE;
146
147 PATH_InitGdiPath(&win_dc_info->path);
148 }
149
150
151 /***********************************************************************
152 * DC_AllocDC
153 */
154 DC *DC_AllocDC( const DC_FUNCTIONS *funcs )
155 {
156 HDC16 hdc;
157 DC *dc;
158
159 if (!(hdc = GDI_AllocObject( sizeof(DC), DC_MAGIC ))) return NULL;
160 dc = (DC *) GDI_HEAP_LOCK( hdc );
161
162 dc->hSelf = hdc;
163 dc->funcs = funcs;
164 dc->physDev = NULL;
165 dc->saveLevel = 0;
166 dc->dwHookData = 0L;
167 dc->hookProc = NULL;
168 dc->wndOrgX = 0;
169 dc->wndOrgY = 0;
170 dc->wndExtX = 1;
171 dc->wndExtY = 1;
172 dc->vportOrgX = 0;
173 dc->vportOrgY = 0;
174 dc->vportExtX = 1;
175 dc->vportExtY = 1;
176
177 DC_Init_DC_INFO( &dc->w );
178
179 return dc;
180 }
181
182
183
184 /***********************************************************************
185 * DC_GetDCPtr
186 */
187 DC *DC_GetDCPtr( HDC32 hdc )
188 {
189 GDIOBJHDR *ptr = (GDIOBJHDR *)GDI_HEAP_LOCK( hdc );
190 if (!ptr) return NULL;
191 if ((ptr->wMagic == DC_MAGIC) || (ptr->wMagic == METAFILE_DC_MAGIC))
192 return (DC *)ptr;
193 GDI_HEAP_UNLOCK( hdc );
194 return NULL;
195 }
196
197
198 /***********************************************************************
199 * DC_InitDC
200 *
201 * Setup device-specific DC values for a newly created DC.
202 */
203 void DC_InitDC( DC* dc )
204 {
205 RealizeDefaultPalette( dc->hSelf );
206 SetTextColor32( dc->hSelf, dc->w.textColor );
207 SetBkColor32( dc->hSelf, dc->w.backgroundColor );
208 SelectObject32( dc->hSelf, dc->w.hPen );
209 SelectObject32( dc->hSelf, dc->w.hBrush );
210 SelectObject32( dc->hSelf, dc->w.hFont );
211 CLIPPING_UpdateGCRegion( dc );
212 }
213
214
215 /***********************************************************************
216 * DC_SetupGCForPatBlt
217 *
218 * Setup the GC for a PatBlt operation using current brush.
219 * If fMapColors is TRUE, X pixels are mapped to Windows colors.
220 * Return FALSE if brush is BS_NULL, TRUE otherwise.
221 */
222 BOOL32 DC_SetupGCForPatBlt( DC * dc, GC gc, BOOL32 fMapColors )
223 {
224 XGCValues val;
225 unsigned long mask;
226 Pixmap pixmap = 0;
227
228 if (dc->u.x.brush.style == BS_NULL) return FALSE;
229 if (dc->u.x.brush.pixel == -1)
230 {
231 /* Special case used for monochrome pattern brushes.
232 * We need to swap foreground and background because
233 * Windows does it the wrong way...
234 */
235 val.foreground = dc->u.x.backgroundPixel;
236 val.background = dc->u.x.textPixel;
237 }
238 else
239 {
240 val.foreground = dc->u.x.brush.pixel;
241 val.background = dc->u.x.backgroundPixel;
242 }
243 if (fMapColors && COLOR_PixelToPalette)
244 {
245 val.foreground = COLOR_PixelToPalette[val.foreground];
246 val.background = COLOR_PixelToPalette[val.background];
247 }
248
249 if (dc->w.flags & DC_DIRTY) CLIPPING_UpdateGCRegion(dc);
250
251 val.function = DC_XROPfunction[dc->w.ROPmode-1];
252 /*
253 ** Let's replace GXinvert by GXxor with (black xor white)
254 ** This solves the selection color and leak problems in excel
255 ** FIXME : Let's do that only if we work with X-pixels, not with Win-pixels
256 */
257 if (val.function == GXinvert)
258 {
259 val.foreground = BlackPixelOfScreen(screen) ^ WhitePixelOfScreen(screen);
260 val.function = GXxor;
261 }
262 val.fill_style = dc->u.x.brush.fillStyle;
263 switch(val.fill_style)
264 {
265 case FillStippled:
266 case FillOpaqueStippled:
267 if (dc->w.backgroundMode==OPAQUE) val.fill_style = FillOpaqueStippled;
268 val.stipple = dc->u.x.brush.pixmap;
269 mask = GCStipple;
270 break;
271
272 case FillTiled:
273 if (fMapColors && COLOR_PixelToPalette)
274 {
275 register int x, y;
276 XImage *image;
277 EnterCriticalSection( &X11DRV_CritSection );
278 pixmap = XCreatePixmap( display, rootWindow, 8, 8, screenDepth );
279 image = XGetImage( display, dc->u.x.brush.pixmap, 0, 0, 8, 8,
280 AllPlanes, ZPixmap );
281 for (y = 0; y < 8; y++)
282 for (x = 0; x < 8; x++)
283 XPutPixel( image, x, y,
284 COLOR_PixelToPalette[XGetPixel( image, x, y)] );
285 XPutImage( display, pixmap, gc, image, 0, 0, 0, 0, 8, 8 );
286 XDestroyImage( image );
287 LeaveCriticalSection( &X11DRV_CritSection );
288 val.tile = pixmap;
289 }
290 else val.tile = dc->u.x.brush.pixmap;
291 mask = GCTile;
292 break;
293
294 default:
295 mask = 0;
296 break;
297 }
298 val.ts_x_origin = dc->w.DCOrgX + dc->w.brushOrgX;
299 val.ts_y_origin = dc->w.DCOrgY + dc->w.brushOrgY;
300 val.fill_rule = (dc->w.polyFillMode==WINDING) ? WindingRule : EvenOddRule;
301 TSXChangeGC( display, gc,
302 GCFunction | GCForeground | GCBackground | GCFillStyle |
303 GCFillRule | GCTileStipXOrigin | GCTileStipYOrigin | mask,
304 &val );
305 if (pixmap) TSXFreePixmap( display, pixmap );
306 return TRUE;
307 }
308
309
310 /***********************************************************************
311 * DC_SetupGCForBrush
312 *
313 * Setup dc->u.x.gc for drawing operations using current brush.
314 * Return FALSE if brush is BS_NULL, TRUE otherwise.
315 */
316 BOOL32 DC_SetupGCForBrush( DC * dc )
317 {
318 return DC_SetupGCForPatBlt( dc, dc->u.x.gc, FALSE );
319 }
320
321
322 /***********************************************************************
323 * DC_SetupGCForPen
324 *
325 * Setup dc->u.x.gc for drawing operations using current pen.
326 * Return FALSE if pen is PS_NULL, TRUE otherwise.
327 */
328 BOOL32 DC_SetupGCForPen( DC * dc )
329 {
330 XGCValues val;
331
332 if (dc->u.x.pen.style == PS_NULL) return FALSE;
333
334 if (dc->w.flags & DC_DIRTY) CLIPPING_UpdateGCRegion(dc);
335
336 switch (dc->w.ROPmode)
337 {
338 case R2_BLACK :
339 val.foreground = BlackPixelOfScreen( screen );
340 val.function = GXcopy;
341 break;
342 case R2_WHITE :
343 val.foreground = WhitePixelOfScreen( screen );
344 val.function = GXcopy;
345 break;
346 case R2_XORPEN :
347 val.foreground = dc->u.x.pen.pixel;
348 /* It is very unlikely someone wants to XOR with 0 */
349 /* This fixes the rubber-drawings in paintbrush */
350 if (val.foreground == 0)
351 val.foreground = BlackPixelOfScreen( screen )
352 ^ WhitePixelOfScreen( screen );
353 val.function = GXxor;
354 break;
355 default :
356 val.foreground = dc->u.x.pen.pixel;
357 val.function = DC_XROPfunction[dc->w.ROPmode-1];
358 }
359 val.background = dc->u.x.backgroundPixel;
360 val.fill_style = FillSolid;
361 if ((dc->u.x.pen.style!=PS_SOLID) && (dc->u.x.pen.style!=PS_INSIDEFRAME))
362 {
363 TSXSetDashes( display, dc->u.x.gc, 0,
364 dc->u.x.pen.dashes, dc->u.x.pen.dash_len );
365 val.line_style = (dc->w.backgroundMode == OPAQUE) ?
366 LineDoubleDash : LineOnOffDash;
367 }
368 else val.line_style = LineSolid;
369 val.line_width = dc->u.x.pen.width;
370 if (val.line_width <= 1) {
371 val.cap_style = CapNotLast;
372 } else {
373 switch (dc->u.x.pen.endcap)
374 {
375 case PS_ENDCAP_SQUARE:
376 val.cap_style = CapProjecting;
377 break;
378 case PS_ENDCAP_FLAT:
379 val.cap_style = CapButt;
380 break;
381 case PS_ENDCAP_ROUND:
382 default:
383 val.cap_style = CapRound;
384 }
385 }
386 switch (dc->u.x.pen.linejoin)
387 {
388 case PS_JOIN_BEVEL:
389 val.join_style = JoinBevel;
390 break;
391 case PS_JOIN_MITER:
392 val.join_style = JoinMiter;
393 break;
394 case PS_JOIN_ROUND:
395 default:
396 val.join_style = JoinRound;
397 }
398 TSXChangeGC( display, dc->u.x.gc,
399 GCFunction | GCForeground | GCBackground | GCLineWidth |
400 GCLineStyle | GCCapStyle | GCJoinStyle | GCFillStyle, &val );
401 return TRUE;
402 }
403
404
405 /***********************************************************************
406 * DC_SetupGCForText
407 *
408 * Setup dc->u.x.gc for text drawing operations.
409 * Return FALSE if the font is null, TRUE otherwise.
410 */
411 BOOL32 DC_SetupGCForText( DC * dc )
412 {
413 XFontStruct* xfs = XFONT_GetFontStruct( dc->u.x.font );
414
415 if( xfs )
416 {
417 XGCValues val;
418
419 if (dc->w.flags & DC_DIRTY) CLIPPING_UpdateGCRegion(dc);
420
421 val.function = GXcopy; /* Text is always GXcopy */
422 val.foreground = dc->u.x.textPixel;
423 val.background = dc->u.x.backgroundPixel;
424 val.fill_style = FillSolid;
425 val.font = xfs->fid;
426
427 TSXChangeGC( display, dc->u.x.gc,
428 GCFunction | GCForeground | GCBackground | GCFillStyle |
429 GCFont, &val );
430 return TRUE;
431 }
432 WARN(dc, "Physical font failure\n" );
433 return FALSE;
434 }
435
436
437 /***********************************************************************
438 * DC_InvertXform
439 *
440 * Computes the inverse of the transformation xformSrc and stores it to
441 * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
442 * is singular.
443 */
444 static BOOL32 DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
445 {
446 FLOAT determinant;
447
448 determinant = xformSrc->eM11*xformSrc->eM22 -
449 xformSrc->eM12*xformSrc->eM21;
450 if (determinant > -1e-12 && determinant < 1e-12)
451 return FALSE;
452
453 xformDest->eM11 = xformSrc->eM22 / determinant;
454 xformDest->eM12 = -xformSrc->eM12 / determinant;
455 xformDest->eM21 = -xformSrc->eM21 / determinant;
456 xformDest->eM22 = xformSrc->eM11 / determinant;
457 xformDest->eDx = -xformSrc->eDx * xformDest->eM11 -
458 xformSrc->eDy * xformDest->eM21;
459 xformDest->eDy = -xformSrc->eDx * xformDest->eM12 -
460 xformSrc->eDy * xformDest->eM22;
461
462 return TRUE;
463 }
464
465
466 /***********************************************************************
467 * DC_UpdateXforms
468 *
469 * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
470 * fields of the specified DC by creating a transformation that
471 * represents the current mapping mode and combining it with the DC's
472 * world transform. This function should be called whenever the
473 * parameters associated with the mapping mode (window and viewport
474 * extents and origins) or the world transform change.
475 */
476 void DC_UpdateXforms( DC *dc )
477 {
478 XFORM xformWnd2Vport;
479 FLOAT scaleX, scaleY;
480
481 /* Construct a transformation to do the window-to-viewport conversion */
482 scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
483 scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
484 xformWnd2Vport.eM11 = scaleX;
485 xformWnd2Vport.eM12 = 0.0;
486 xformWnd2Vport.eM21 = 0.0;
487 xformWnd2Vport.eM22 = scaleY;
488 xformWnd2Vport.eDx = (FLOAT)dc->vportOrgX -
489 scaleX * (FLOAT)dc->wndOrgX;
490 xformWnd2Vport.eDy = (FLOAT)dc->vportOrgY -
491 scaleY * (FLOAT)dc->wndOrgY;
492
493 /* Combine with the world transformation */
494 CombineTransform( &dc->w.xformWorld2Vport, &dc->w.xformWorld2Wnd,
495 &xformWnd2Vport );
496
497 /* Create inverse of world-to-viewport transformation */
498 dc->w.vport2WorldValid = DC_InvertXform( &dc->w.xformWorld2Vport,
499 &dc->w.xformVport2World );
500 }
501
502
503 /***********************************************************************
504 * GetDCState (GDI.179)
505 */
506 HDC16 WINAPI GetDCState( HDC16 hdc )
507 {
508 DC * newdc, * dc;
509 HGDIOBJ16 handle;
510
511 if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
512 if (!(handle = GDI_AllocObject( sizeof(DC), DC_MAGIC )))
513 {
514 GDI_HEAP_UNLOCK( hdc );
515 return 0;
516 }
517 newdc = (DC *) GDI_HEAP_LOCK( handle );
518
519 TRACE(dc, "(%04x): returning %04x\n", hdc, handle );
520
521 memset( &newdc->u.x, 0, sizeof(newdc->u.x) );
522 newdc->w.flags = dc->w.flags | DC_SAVED;
523 newdc->w.devCaps = dc->w.devCaps;
524 newdc->w.hPen = dc->w.hPen;
525 newdc->w.hBrush = dc->w.hBrush;
526 newdc->w.hFont = dc->w.hFont;
527 newdc->w.hBitmap = dc->w.hBitmap;
528 newdc->w.hFirstBitmap = dc->w.hFirstBitmap;
529 newdc->w.hDevice = dc->w.hDevice;
530 newdc->w.hPalette = dc->w.hPalette;
531 newdc->w.totalExtent = dc->w.totalExtent;
532 newdc->w.bitsPerPixel = dc->w.bitsPerPixel;
533 newdc->w.ROPmode = dc->w.ROPmode;
534 newdc->w.polyFillMode = dc->w.polyFillMode;
535 newdc->w.stretchBltMode = dc->w.stretchBltMode;
536 newdc->w.relAbsMode = dc->w.relAbsMode;
537 newdc->w.backgroundMode = dc->w.backgroundMode;
538 newdc->w.backgroundColor = dc->w.backgroundColor;
539 newdc->w.textColor = dc->w.textColor;
540 newdc->w.brushOrgX = dc->w.brushOrgX;
541 newdc->w.brushOrgY = dc->w.brushOrgY;
542 newdc->w.textAlign = dc->w.textAlign;
543 newdc->w.charExtra = dc->w.charExtra;
544 newdc->w.breakTotalExtra = dc->w.breakTotalExtra;
545 newdc->w.breakCount = dc->w.breakCount;
546 newdc->w.breakExtra = dc->w.breakExtra;
547 newdc->w.breakRem = dc->w.breakRem;
548 newdc->w.MapMode = dc->w.MapMode;
549 newdc->w.GraphicsMode = dc->w.GraphicsMode;
550 #if 0
551 /* Apparently, the DC origin is not changed by [GS]etDCState */
552 newdc->w.DCOrgX = dc->w.DCOrgX;
553 newdc->w.DCOrgY = dc->w.DCOrgY;
554 #endif
555 newdc->w.CursPosX = dc->w.CursPosX;
556 newdc->w.CursPosY = dc->w.CursPosY;
557 newdc->w.ArcDirection = dc->w.ArcDirection;
558 newdc->w.xformWorld2Wnd = dc->w.xformWorld2Wnd;
559 newdc->w.xformWorld2Vport = dc->w.xformWorld2Vport;
560 newdc->w.xformVport2World = dc->w.xformVport2World;
561 newdc->w.vport2WorldValid = dc->w.vport2WorldValid;
562 newdc->wndOrgX = dc->wndOrgX;
563 newdc->wndOrgY = dc->wndOrgY;
564 newdc->wndExtX = dc->wndExtX;
565 newdc->wndExtY = dc->wndExtY;
566 newdc->vportOrgX = dc->vportOrgX;
567 newdc->vportOrgY = dc->vportOrgY;
568 newdc->vportExtX = dc->vportExtX;
569 newdc->vportExtY = dc->vportExtY;
570
571 newdc->hSelf = (HDC32)handle;
572 newdc->saveLevel = 0;
573
574 PATH_InitGdiPath( &newdc->w.path );
575
576 /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
577
578 newdc->w.hGCClipRgn = newdc->w.hVisRgn = 0;
579 if (dc->w.hClipRgn)
580 {
581 newdc->w.hClipRgn = CreateRectRgn32( 0, 0, 0, 0 );
582 CombineRgn32( newdc->w.hClipRgn, dc->w.hClipRgn, 0, RGN_COPY );
583 }
584 else
585 newdc->w.hClipRgn = 0;
586 GDI_HEAP_UNLOCK( handle );
587 GDI_HEAP_UNLOCK( hdc );
588 return handle;
589 }
590
591
592 /***********************************************************************
593 * SetDCState (GDI.180)
594 */
595 void WINAPI SetDCState( HDC16 hdc, HDC16 hdcs )
596 {
597 DC *dc, *dcs;
598
599 if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return;
600 if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
601 {
602 GDI_HEAP_UNLOCK( hdc );
603 return;
604 }
605 if (!dcs->w.flags & DC_SAVED)
606 {
607 GDI_HEAP_UNLOCK( hdc );
608 GDI_HEAP_UNLOCK( hdcs );
609 return;
610 }
611 TRACE(dc, "%04x %04x\n", hdc, hdcs );
612
613 dc->w.flags = dcs->w.flags & ~DC_SAVED;
614 dc->w.devCaps = dcs->w.devCaps;
615 dc->w.hFirstBitmap = dcs->w.hFirstBitmap;
616 dc->w.hDevice = dcs->w.hDevice;
617 dc->w.totalExtent = dcs->w.totalExtent;
618 dc->w.ROPmode = dcs->w.ROPmode;
619 dc->w.polyFillMode = dcs->w.polyFillMode;
620 dc->w.stretchBltMode = dcs->w.stretchBltMode;
621 dc->w.relAbsMode = dcs->w.relAbsMode;
622 dc->w.backgroundMode = dcs->w.backgroundMode;
623 dc->w.backgroundColor = dcs->w.backgroundColor;
624 dc->w.textColor = dcs->w.textColor;
625 dc->w.brushOrgX = dcs->w.brushOrgX;
626 dc->w.brushOrgY = dcs->w.brushOrgY;
627 dc->w.textAlign = dcs->w.textAlign;
628 dc->w.charExtra = dcs->w.charExtra;
629 dc->w.breakTotalExtra = dcs->w.breakTotalExtra;
630 dc->w.breakCount = dcs->w.breakCount;
631 dc->w.breakExtra = dcs->w.breakExtra;
632 dc->w.breakRem = dcs->w.breakRem;
633 dc->w.MapMode = dcs->w.MapMode;
634 dc->w.GraphicsMode = dcs->w.GraphicsMode;
635 #if 0
636 /* Apparently, the DC origin is not changed by [GS]etDCState */
637 dc->w.DCOrgX = dcs->w.DCOrgX;
638 dc->w.DCOrgY = dcs->w.DCOrgY;
639 #endif
640 dc->w.CursPosX = dcs->w.CursPosX;
641 dc->w.CursPosY = dcs->w.CursPosY;
642 dc->w.ArcDirection = dcs->w.ArcDirection;
643 dc->w.xformWorld2Wnd = dcs->w.xformWorld2Wnd;
644 dc->w.xformWorld2Vport = dcs->w.xformWorld2Vport;
645 dc->w.xformVport2World = dcs->w.xformVport2World;
646 dc->w.vport2WorldValid = dcs->w.vport2WorldValid;
647
648 dc->wndOrgX = dcs->wndOrgX;
649 dc->wndOrgY = dcs->wndOrgY;
650 dc->wndExtX = dcs->wndExtX;
651 dc->wndExtY = dcs->wndExtY;
652 dc->vportOrgX = dcs->vportOrgX;
653 dc->vportOrgY = dcs->vportOrgY;
654 dc->vportExtX = dcs->vportExtX;
655 dc->vportExtY = dcs->vportExtY;
656
657 if (!(dc->w.flags & DC_MEMORY)) dc->w.bitsPerPixel = dcs->w.bitsPerPixel;
658
659 if (dcs->w.hClipRgn)
660 {
661 if (!dc->w.hClipRgn) dc->w.hClipRgn = CreateRectRgn32( 0, 0, 0, 0 );
662 CombineRgn32( dc->w.hClipRgn, dcs->w.hClipRgn, 0, RGN_COPY );
663 }
664 else
665 {
666 if (dc->w.hClipRgn) DeleteObject16( dc->w.hClipRgn );
667 dc->w.hClipRgn = 0;
668 }
669 CLIPPING_UpdateGCRegion( dc );
670
671 SelectObject32( hdc, dcs->w.hBitmap );
672 SelectObject32( hdc, dcs->w.hBrush );
673 SelectObject32( hdc, dcs->w.hFont );
674 SelectObject32( hdc, dcs->w.hPen );
675 SetBkColor32( hdc, dcs->w.backgroundColor);
676 SetTextColor32( hdc, dcs->w.textColor);
677 GDISelectPalette( hdc, dcs->w.hPalette, FALSE );
678 GDI_HEAP_UNLOCK( hdc );
679 GDI_HEAP_UNLOCK( hdcs );
680 }
681
682
683 /***********************************************************************
684 * SaveDC16 (GDI.30)
685 */
686 INT16 WINAPI SaveDC16( HDC16 hdc )
687 {
688 return (INT16)SaveDC32( hdc );
689 }
690
691
692 /***********************************************************************
693 * SaveDC32 (GDI32.292)
694 */
695 INT32 WINAPI SaveDC32( HDC32 hdc )
696 {
697 HDC32 hdcs;
698 DC * dc, * dcs;
699 INT32 ret;
700
701 dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
702 if (!dc)
703 {
704 dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
705 if (!dc) return 0;
706 MF_MetaParam0(dc, META_SAVEDC);
707 GDI_HEAP_UNLOCK( hdc );
708 return 1; /* ?? */
709 }
710 if (!(hdcs = GetDCState( hdc )))
711 {
712 GDI_HEAP_UNLOCK( hdc );
713 return 0;
714 }
715 dcs = (DC *) GDI_HEAP_LOCK( hdcs );
716
717 /* Copy path. The reason why path saving / restoring is in SaveDC/
718 * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
719 * functions are only in Win16 (which doesn't have paths) and that
720 * SetDCState doesn't allow us to signal an error (which can happen
721 * when copying paths).
722 */
723 if (!PATH_AssignGdiPath( &dcs->w.path, &dc->w.path ))
724 {
725 GDI_HEAP_UNLOCK( hdc );
726 GDI_HEAP_UNLOCK( hdcs );
727 DeleteDC32( hdcs );
728 return 0;
729 }
730
731 dcs->header.hNext = dc->header.hNext;
732 dc->header.hNext = hdcs;
733 TRACE(dc, "(%04x): returning %d\n", hdc, dc->saveLevel+1 );
734 ret = ++dc->saveLevel;
735 GDI_HEAP_UNLOCK( hdcs );
736 GDI_HEAP_UNLOCK( hdc );
737 return ret;
738 }
739
740
741 /***********************************************************************
742 * RestoreDC16 (GDI.39)
743 */
744 BOOL16 WINAPI RestoreDC16( HDC16 hdc, INT16 level )
745 {
746 return RestoreDC32( hdc, level );
747 }
748
749
750 /***********************************************************************
751 * RestoreDC32 (GDI32.290)
752 */
753 BOOL32 WINAPI RestoreDC32( HDC32 hdc, INT32 level )
754 {
755 DC * dc, * dcs;
756 BOOL32 success;
757
758 TRACE(dc, "%04x %d\n", hdc, level );
759 dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
760 if (!dc)
761 {
762 dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
763 if (!dc) return FALSE;
764 if (level != -1)
765 {
766 GDI_HEAP_UNLOCK( hdc );
767 return FALSE;
768 }
769 MF_MetaParam1(dc, META_RESTOREDC, level);
770 GDI_HEAP_UNLOCK( hdc );
771 return TRUE;
772 }
773 if (level == -1) level = dc->saveLevel;
774 if ((level < 1) || (level > dc->saveLevel))
775 {
776 GDI_HEAP_UNLOCK( hdc );
777 return FALSE;
778 }
779
780 success=TRUE;
781 while (dc->saveLevel >= level)
782 {
783 HDC16 hdcs = dc->header.hNext;
784 if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
785 {
786 GDI_HEAP_UNLOCK( hdc );
787 return FALSE;
788 }
789 dc->header.hNext = dcs->header.hNext;
790 if (--dc->saveLevel < level)
791 {
792 SetDCState( hdc, hdcs );
793 if (!PATH_AssignGdiPath( &dc->w.path, &dcs->w.path ))
794 /* FIXME: This might not be quite right, since we're
795 * returning FALSE but still destroying the saved DC state */
796 success=FALSE;
797 }
798 DeleteDC32( hdcs );
799 }
800 GDI_HEAP_UNLOCK( hdc );
801 return success;
802 }
803
804
805 /***********************************************************************
806 * CreateDC16 (GDI.53)
807 */
808 HDC16 WINAPI CreateDC16( LPCSTR driver, LPCSTR device, LPCSTR output,
809 const DEVMODE16 *initData )
810 {
811 DC * dc;
812 const DC_FUNCTIONS *funcs;
813
814 if (!(funcs = DRIVER_FindDriver( driver ))) return 0;
815 if (!(dc = DC_AllocDC( funcs ))) return 0;
816 dc->w.flags = 0;
817
818 TRACE(dc, "(driver=%s, device=%s, output=%s): returning %04x\n",
819 debugstr_a(driver), debugstr_a(device), debugstr_a(output), dc->hSelf );
820
821 if (dc->funcs->pCreateDC &&
822 !dc->funcs->pCreateDC( dc, driver, device, output, initData ))
823 {
824 WARN(dc, "creation aborted by device\n" );
825 GDI_HEAP_FREE( dc->hSelf );
826 return 0;
827 }
828
829 DC_InitDC( dc );
830 GDI_HEAP_UNLOCK( dc->hSelf );
831 return dc->hSelf;
832 }
833
834
835 /***********************************************************************
836 * CreateDC32A (GDI32.)
837 */
838 HDC32 WINAPI CreateDC32A( LPCSTR driver, LPCSTR device, LPCSTR output,
839 const DEVMODE32A *initData )
840 {
841 return CreateDC16( driver, device, output, (const DEVMODE16 *)initData );
842 }
843
844
845 /***********************************************************************
846 * CreateDC32W (GDI32.)
847 */
848 HDC32 WINAPI CreateDC32W( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
849 const DEVMODE32W *initData )
850 {
851 LPSTR driverA = HEAP_strdupWtoA( GetProcessHeap(), 0, driver );
852 LPSTR deviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, device );
853 LPSTR outputA = HEAP_strdupWtoA( GetProcessHeap(), 0, output );
854 HDC32 res = CreateDC16( driverA, deviceA, outputA,
855 (const DEVMODE16 *)initData /*FIXME*/ );
856 HeapFree( GetProcessHeap(), 0, driverA );
857 HeapFree( GetProcessHeap(), 0, deviceA );
858 HeapFree( GetProcessHeap(), 0, outputA );
859 return res;
860 }
861
862
863 /***********************************************************************
864 * CreateIC16 (GDI.153)
865 */
866 HDC16 WINAPI CreateIC16( LPCSTR driver, LPCSTR device, LPCSTR output,
867 const DEVMODE16* initData )
868 {
869 /* Nothing special yet for ICs */
870 return CreateDC16( driver, device, output, initData );
871 }
872
873
874 /***********************************************************************
875 * CreateIC32A (GDI32.49)
876 */
877 HDC32 WINAPI CreateIC32A( LPCSTR driver, LPCSTR device, LPCSTR output,
878 const DEVMODE32A* initData )
879 {
880 /* Nothing special yet for ICs */
881 return CreateDC32A( driver, device, output, initData );
882 }
883
884
885 /***********************************************************************
886 * CreateIC32W (GDI32.50)
887 */
888 HDC32 WINAPI CreateIC32W( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
889 const DEVMODE32W* initData )
890 {
891 /* Nothing special yet for ICs */
892 return CreateDC32W( driver, device, output, initData );
893 }
894
895
896 /***********************************************************************
897 * CreateCompatibleDC16 (GDI.52)
898 */
899 HDC16 WINAPI CreateCompatibleDC16( HDC16 hdc )
900 {
901 return (HDC16)CreateCompatibleDC32( hdc );
902 }
903
904
905 /***********************************************************************
906 * CreateCompatibleDC32 (GDI32.31)
907 */
908 HDC32 WINAPI CreateCompatibleDC32( HDC32 hdc )
909 {
910 DC *dc, *origDC;
911 HBITMAP32 hbitmap;
912 const DC_FUNCTIONS *funcs;
913
914 if ((origDC = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC ))) funcs = origDC->funcs;
915 else funcs = DRIVER_FindDriver( "DISPLAY" );
916 if (!funcs) return 0;
917
918 if (!(dc = DC_AllocDC( funcs ))) return 0;
919
920 TRACE(dc, "(%04x): returning %04x\n",
921 hdc, dc->hSelf );
922
923 /* Create default bitmap */
924 if (!(hbitmap = CreateBitmap32( 1, 1, 1, 1, NULL )))
925 {
926 GDI_HEAP_FREE( dc->hSelf );
927 return 0;
928 }
929 dc->w.flags = DC_MEMORY;
930 dc->w.bitsPerPixel = 1;
931 dc->w.hBitmap = hbitmap;
932 dc->w.hFirstBitmap = hbitmap;
933
934 if (dc->funcs->pCreateDC &&
935 !dc->funcs->pCreateDC( dc, NULL, NULL, NULL, NULL ))
936 {
937 WARN(dc, "creation aborted by device\n");
938 DeleteObject32( hbitmap );
939 GDI_HEAP_FREE( dc->hSelf );
940 return 0;
941 }
942
943 DC_InitDC( dc );
944 GDI_HEAP_UNLOCK( dc->hSelf );
945 return dc->hSelf;
946 }
947
948
949 /***********************************************************************
950 * DeleteDC16 (GDI.68)
951 */
952 BOOL16 WINAPI DeleteDC16( HDC16 hdc )
953 {
954 return DeleteDC32( hdc );
955 }
956
957
958 /***********************************************************************
959 * DeleteDC32 (GDI32.67)
960 */
961 BOOL32 WINAPI DeleteDC32( HDC32 hdc )
962 {
963 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
964 if (!dc) return FALSE;
965
966 TRACE(dc, "%04x\n", hdc );
967
968 while (dc->saveLevel)
969 {
970 DC * dcs;
971 HDC16 hdcs = dc->header.hNext;
972 if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) break;
973 dc->header.hNext = dcs->header.hNext;
974 dc->saveLevel--;
975 DeleteDC32( hdcs );
976 }
977
978 if (!(dc->w.flags & DC_SAVED))
979 {
980 SelectObject32( hdc, STOCK_BLACK_PEN );
981 SelectObject32( hdc, STOCK_WHITE_BRUSH );
982 SelectObject32( hdc, STOCK_SYSTEM_FONT );
983 if (dc->w.flags & DC_MEMORY) DeleteObject32( dc->w.hFirstBitmap );
984 if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc);
985 }
986
987 if (dc->w.hClipRgn) DeleteObject32( dc->w.hClipRgn );
988 if (dc->w.hVisRgn) DeleteObject32( dc->w.hVisRgn );
989 if (dc->w.hGCClipRgn) DeleteObject32( dc->w.hGCClipRgn );
990
991 PATH_DestroyGdiPath(&dc->w.path);
992
993 return GDI_FreeObject( hdc );
994 }
995
996
997 /***********************************************************************
998 * ResetDC16 (GDI.376)
999 */
1000 HDC16 WINAPI ResetDC16( HDC16 hdc, const DEVMODE16 *devmode )
1001 {
1002 FIXME(dc, "stub\n" );
1003 return hdc;
1004 }
1005
1006
1007 /***********************************************************************
1008 * ResetDC32A (GDI32.287)
1009 */
1010 HDC32 WINAPI ResetDC32A( HDC32 hdc, const DEVMODE32A *devmode )
1011 {
1012 FIXME(dc, "stub\n" );
1013 return hdc;
1014 }
1015
1016
1017 /***********************************************************************
1018 * ResetDC32W (GDI32.288)
1019 */
1020 HDC32 WINAPI ResetDC32W( HDC32 hdc, const DEVMODE32W *devmode )
1021 {
1022 FIXME(dc, "stub\n" );
1023 return hdc;
1024 }
1025
1026
1027 /***********************************************************************
1028 * GetDeviceCaps16 (GDI.80)
1029 */
1030 INT16 WINAPI GetDeviceCaps16( HDC16 hdc, INT16 cap )
1031 {
1032 return GetDeviceCaps32( hdc, cap );
1033 }
1034
1035
1036 /***********************************************************************
1037 * GetDeviceCaps32 (GDI32.171)
1038 */
1039 INT32 WINAPI GetDeviceCaps32( HDC32 hdc, INT32 cap )
1040 {
1041 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1042 INT32 ret;
1043
1044 if (!dc) return 0;
1045
1046 if ((cap < 0) || (cap > sizeof(DeviceCaps)-sizeof(WORD)))
1047 {
1048 GDI_HEAP_UNLOCK( hdc );
1049 return 0;
1050 }
1051
1052 TRACE(dc, "(%04x,%d): returning %d\n",
1053 hdc, cap, *(WORD *)(((char *)dc->w.devCaps) + cap) );
1054 ret = *(WORD *)(((char *)dc->w.devCaps) + cap);
1055 GDI_HEAP_UNLOCK( hdc );
1056 return ret;
1057 }
1058
1059
1060 /***********************************************************************
1061 * SetBkColor16 (GDI.1)
1062 */
1063 COLORREF WINAPI SetBkColor16( HDC16 hdc, COLORREF color )
1064 {
1065 return SetBkColor32( hdc, color );
1066 }
1067
1068
1069 /***********************************************************************
1070 * SetBkColor32 (GDI32.305)
1071 */
1072 COLORREF WINAPI SetBkColor32( HDC32 hdc, COLORREF color )
1073 {
1074 COLORREF oldColor;
1075 DC * dc = DC_GetDCPtr( hdc );
1076
1077 if (!dc) return 0x80000000;
1078 if (dc->funcs->pSetBkColor)
1079 oldColor = dc->funcs->pSetBkColor(dc, color);
1080 else {
1081 oldColor = dc->w.backgroundColor;
1082 dc->w.backgroundColor = color;
1083 }
1084 GDI_HEAP_UNLOCK( hdc );
1085 return oldColor;
1086 }
1087
1088
1089 /***********************************************************************
1090 * SetTextColor16 (GDI.9)
1091 */
1092 COLORREF WINAPI SetTextColor16( HDC16 hdc, COLORREF color )
1093 {
1094 return SetTextColor32( hdc, color );
1095 }
1096
1097
1098 /***********************************************************************
1099 * SetTextColor32 (GDI32.338)
1100 */
1101 COLORREF WINAPI SetTextColor32( HDC32 hdc, COLORREF color )
1102 {
1103 COLORREF oldColor;
1104 DC * dc = DC_GetDCPtr( hdc );
1105
1106 if (!dc) return 0x80000000;
1107 if (dc->funcs->pSetTextColor)
1108 oldColor = dc->funcs->pSetTextColor(dc, color);
1109 else {
1110 oldColor = dc->w.textColor;
1111 dc->w.textColor = color;
1112 }
1113 GDI_HEAP_UNLOCK( hdc );
1114 return oldColor;
1115 }
1116
1117
1118 /***********************************************************************
1119 * SetTextAlign16 (GDI.346)
1120 */
1121 UINT16 WINAPI SetTextAlign16( HDC16 hdc, UINT16 textAlign )
1122 {
1123 return SetTextAlign32( hdc, textAlign );
1124 }
1125
1126
1127 /***********************************************************************
1128 * SetTextAlign32 (GDI32.336)
1129 */
1130 UINT32 WINAPI SetTextAlign32( HDC32 hdc, UINT32 textAlign )
1131 {
1132 UINT32 prevAlign;
1133 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1134 if (!dc)
1135 {
1136 if (!(dc = (DC *)GDI_GetObjPtr( hdc, METAFILE_DC_MAGIC ))) return 0;
1137 MF_MetaParam1( dc, META_SETTEXTALIGN, textAlign );
1138 GDI_HEAP_UNLOCK( hdc );
1139 return 1;
1140 }
1141 prevAlign = dc->w.textAlign;
1142 dc->w.textAlign = textAlign;
1143 GDI_HEAP_UNLOCK( hdc );
1144 return prevAlign;
1145 }
1146
1147
1148 /***********************************************************************
1149 * GetDCOrgEx (GDI32.168)
1150 */
1151 BOOL32 WINAPI GetDCOrgEx( HDC32 hDC, LPPOINT32 lpp )
1152 {
1153 DC * dc;
1154 if (!lpp) return FALSE;
1155 if (!(dc = (DC *) GDI_GetObjPtr( hDC, DC_MAGIC ))) return FALSE;
1156
1157 if (!(dc->w.flags & DC_MEMORY))
1158 {
1159 Window root;
1160 int w, h, border, depth;
1161 /* FIXME: this is not correct for managed windows */
1162 TSXGetGeometry( display, dc->u.x.drawable, &root,
1163 &lpp->x, &lpp->y, &w, &h, &border, &depth );
1164 }
1165 else lpp->x = lpp->y = 0;
1166 lpp->x += dc->w.DCOrgX; lpp->y += dc->w.DCOrgY;
1167 GDI_HEAP_UNLOCK( hDC );
1168 return TRUE;
1169 }
1170
1171
1172 /***********************************************************************
1173 * GetDCOrg (GDI.79)
1174 */
1175 DWORD WINAPI GetDCOrg( HDC16 hdc )
1176 {
1177 POINT32 pt;
1178 if( GetDCOrgEx( hdc, &pt) )
1179 return MAKELONG( (WORD)pt.x, (WORD)pt.y );
1180 return 0;
1181 }
1182
1183
1184 /***********************************************************************
1185 * SetDCOrg (GDI.117)
1186 */
1187 DWORD WINAPI SetDCOrg( HDC16 hdc, INT16 x, INT16 y )
1188 {
1189 DWORD prevOrg;
1190 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1191 if (!dc) return 0;
1192 prevOrg = dc->w.DCOrgX | (dc->w.DCOrgY << 16);
1193 dc->w.DCOrgX = x;
1194 dc->w.DCOrgY = y;
1195 GDI_HEAP_UNLOCK( hdc );
1196 return prevOrg;
1197 }
1198
1199
1200 /***********************************************************************
1201 * GetGraphicsMode (GDI32.188)
1202 */
1203 INT32 WINAPI GetGraphicsMode( HDC32 hdc )
1204 {
1205 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1206 if (!dc) return 0;
1207 return dc->w.GraphicsMode;
1208 }
1209
1210
1211 /***********************************************************************
1212 * SetGraphicsMode (GDI32.317)
1213 */
1214 INT32 WINAPI SetGraphicsMode( HDC32 hdc, INT32 mode )
1215 {
1216 INT32 ret;
1217 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1218
1219 /* One would think that setting the graphics mode to GM_COMPATIBLE
1220 * would also reset the world transformation matrix to the unity
1221 * matrix. However, in Windows, this is not the case. This doesn't
1222 * make a lot of sense to me, but that's the way it is.
1223 */
1224
1225 if (!dc) return 0;
1226 if ((mode <= 0) || (mode > GM_LAST)) return 0;
1227 ret = dc->w.GraphicsMode;
1228 dc->w.GraphicsMode = mode;
1229 return ret;
1230 }
1231
1232
1233 /***********************************************************************
1234 * GetArcDirection16 (GDI.524)
1235 */
1236 INT16 WINAPI GetArcDirection16( HDC16 hdc )
1237 {
1238 return GetArcDirection32( (HDC32)hdc );
1239 }
1240
1241
1242 /***********************************************************************
1243 * GetArcDirection32 (GDI32.141)
1244 */
1245 INT32 WINAPI GetArcDirection32( HDC32 hdc )
1246 {
1247 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1248
1249 if (!dc)
1250 return 0;
1251
1252 return dc->w.ArcDirection;
1253 }
1254
1255
1256 /***********************************************************************
1257 * SetArcDirection16 (GDI.525)
1258 */
1259 INT16 WINAPI SetArcDirection16( HDC16 hdc, INT16 nDirection )
1260 {
1261 return SetArcDirection32( (HDC32)hdc, (INT32)nDirection );
1262 }
1263
1264
1265 /***********************************************************************
1266 * SetArcDirection32 (GDI32.302)
1267 */
1268 INT32 WINAPI SetArcDirection32( HDC32 hdc, INT32 nDirection )
1269 {
1270 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1271 INT32 nOldDirection;
1272
1273 if (!dc)
1274 return 0;
1275
1276 if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
1277 {
1278 SetLastError(ERROR_INVALID_PARAMETER);
1279 return 0;
1280 }
1281
1282 nOldDirection = dc->w.ArcDirection;
1283 dc->w.ArcDirection = nDirection;
1284
1285 return nOldDirection;
1286 }
1287
1288
1289 /***********************************************************************
1290 * GetWorldTransform (GDI32.244)
1291 */
1292 BOOL32 WINAPI GetWorldTransform( HDC32 hdc, LPXFORM xform )
1293 {
1294 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1295
1296 if (!dc)
1297 return FALSE;
1298 if (!xform)
1299 return FALSE;
1300
1301 *xform = dc->w.xformWorld2Wnd;
1302
1303 return TRUE;
1304 }
1305
1306
1307 /***********************************************************************
1308 * SetWorldTransform (GDI32.346)
1309 */
1310 BOOL32 WINAPI SetWorldTransform( HDC32 hdc, const XFORM *xform )
1311 {
1312 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1313
1314 if (!dc)
1315 {
1316 SetLastError( ERROR_INVALID_HANDLE );
1317 return FALSE;
1318 }
1319
1320 if (!xform)
1321 return FALSE;
1322
1323 /* Check that graphics mode is GM_ADVANCED */
1324 if (dc->w.GraphicsMode!=GM_ADVANCED)
1325 return FALSE;
1326
1327 dc->w.xformWorld2Wnd = *xform;
1328
1329 DC_UpdateXforms( dc );
1330
1331 return TRUE;
1332 }
1333
1334
1335 /****************************************************************************
1336 * ModifyWorldTransform [GDI32.253]
1337 * Modifies the world transformation for a device context.
1338 *
1339 * PARAMS
1340 * hdc [I] Handle to device context
1341 * xform [I] XFORM structure that will be used to modify the world
1342 * transformation
1343 * iMode [I] Specifies in what way to modify the world transformation
1344 * Possible values:
1345 * MWT_IDENTITY
1346 * Resets the world transformation to the identity matrix.
1347 * The parameter xform is ignored.
1348 * MWT_LEFTMULTIPLY
1349 * Multiplies xform into the world transformation matrix from
1350 * the left.
1351 * MWT_RIGHTMULTIPLY
1352 * Multiplies xform into the world transformation matrix from
1353 * the right.
1354 *
1355 * RETURNS STD
1356 */
1357 BOOL32 WINAPI ModifyWorldTransform( HDC32 hdc, const XFORM *xform,
1358 DWORD iMode )
1359 {
1360 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1361
1362 /* Check for illegal parameters */
1363 if (!dc)
1364 {
1365 SetLastError( ERROR_INVALID_HANDLE );
1366 return FALSE;
1367 }
1368 if (!xform)
1369 return FALSE;
1370
1371 /* Check that graphics mode is GM_ADVANCED */
1372 if (dc->w.GraphicsMode!=GM_ADVANCED)
1373 return FALSE;
1374
1375 switch (iMode)
1376 {
1377 case MWT_IDENTITY:
1378 dc->w.xformWorld2Wnd.eM11 = 1.0f;
1379 dc->w.xformWorld2Wnd.eM12 = 0.0f;
1380 dc->w.xformWorld2Wnd.eM21 = 0.0f;
1381 dc->w.xformWorld2Wnd.eM22 = 1.0f;
1382 dc->w.xformWorld2Wnd.eDx = 0.0f;
1383 dc->w.xformWorld2Wnd.eDy = 0.0f;
1384 break;
1385 case MWT_LEFTMULTIPLY:
1386 CombineTransform( &dc->w.xformWorld2Wnd, xform,
1387 &dc->w.xformWorld2Wnd );
1388 break;
1389 case MWT_RIGHTMULTIPLY:
1390 CombineTransform( &dc->w.xformWorld2Wnd, &dc->w.xformWorld2Wnd,
1391 xform );
1392 break;
1393 default:
1394 return FALSE;
1395 }
1396
1397 DC_UpdateXforms( dc );
1398
1399 return TRUE;
1400 }
1401
1402
1403 /****************************************************************************
1404 * CombineTransform [GDI32.20]
1405 * Combines two transformation matrices.
1406 *
1407 * PARAMS
1408 * xformResult [O] Stores the result of combining the two matrices
1409 * xform1 [I] Specifies the first matrix to apply
1410 * xform2 [I] Specifies the second matrix to apply
1411 *
1412 * REMARKS
1413 * The same matrix can be passed in for more than one of the parameters.
1414 *
1415 * RETURNS STD
1416 */
1417 BOOL32 WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1418 const XFORM *xform2 )
1419 {
1420 XFORM xformTemp;
1421
1422 /* Check for illegal parameters */
1423 if (!xformResult || !xform1 || !xform2)
1424 return FALSE;
1425
1426 /* Create the result in a temporary XFORM, since xformResult may be
1427 * equal to xform1 or xform2 */
1428 xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1429 xform1->eM12 * xform2->eM21;
1430 xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1431 xform1->eM12 * xform2->eM22;
1432 xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1433 xform1->eM22 * xform2->eM21;
1434 xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1435 xform1->eM22 * xform2->eM22;
1436 xformTemp.eDx = xform1->eDx * xform2->eM11 +
1437 xform1->eDy * xform2->eM21 +
1438 xform2->eDx;
1439 xformTemp.eDy = xform1->eDx * xform2->eM12 +
1440 xform1->eDy * xform2->eM22 +
1441 xform2->eDy;
1442
1443 /* Copy the result to xformResult */
1444 *xformResult = xformTemp;
1445
1446 return TRUE;
1447 }
1448
1449
1450 /***********************************************************************
1451 * SetDCHook (GDI.190)
1452 */
1453 BOOL16 WINAPI SetDCHook( HDC16 hdc, FARPROC16 hookProc, DWORD dwHookData )
1454 {
1455 DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1456
1457 TRACE(dc, "hookProc %08x, default is %08x\n",
1458 (UINT32)hookProc, (UINT32)DCHook );
1459
1460 if (!dc) return FALSE;
1461 dc->hookProc = hookProc;
1462 dc->dwHookData = dwHookData;
1463 GDI_HEAP_UNLOCK( hdc );
1464 return TRUE;
1465 }
1466
1467
1468 /***********************************************************************
1469 * GetDCHook (GDI.191)
1470 */
1471 DWORD WINAPI GetDCHook( HDC16 hdc, FARPROC16 *phookProc )
1472 {
1473 DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1474 if (!dc) return 0;
1475 *phookProc = dc->hookProc;
1476 GDI_HEAP_UNLOCK( hdc );
1477 return dc->dwHookData;
1478 }
1479
1480
1481 /***********************************************************************
1482 * SetHookFlags (GDI.192)
1483 */
1484 WORD WINAPI SetHookFlags(HDC16 hDC, WORD flags)
1485 {
1486 DC* dc = (DC*)GDI_GetObjPtr( hDC, DC_MAGIC );
1487
1488 if( dc )
1489 {
1490 WORD wRet = dc->w.flags & DC_DIRTY;
1491
1492 /* "Undocumented Windows" info is slightly confusing.
1493 */
1494
1495 TRACE(dc,"hDC %04x, flags %04x\n",hDC,flags);
1496
1497 if( flags & DCHF_INVALIDATEVISRGN )
1498 dc->w.flags |= DC_DIRTY;
1499 else if( flags & DCHF_VALIDATEVISRGN || !flags )
1500 dc->w.flags &= ~DC_DIRTY;
1501 GDI_HEAP_UNLOCK( hDC );
1502 return wRet;
1503 }
1504 return 0;
1505 }
1506
1507 /***********************************************************************
1508 * SetICMMode (GDI32.318)
1509 */
1510 INT32 WINAPI SetICMMode(HDC32 hdc, INT32 iEnableICM)
1511 {
1512 /*FIXME Asuming that ICM is always off, and cannot be turned on */
1513 if (iEnableICM == ICM_OFF) return ICM_OFF;
1514 if (iEnableICM == ICM_ON) return 0;
1515 if (iEnableICM == ICM_QUERY) return ICM_OFF;
1516 return 0;
1517 }
1518
1519
1520 /***********************************************************************
1521 * GetColorSpace (GDI32.165)
1522 */
1523 HCOLORSPACE32 WINAPI GetColorSpace(HDC32 hdc)
1524 {
1525 /*FIXME Need to to whatever GetColorSpace actually does */
1526 return 0;
1527 }
1528
1529 /***********************************************************************
1530 * GetBoundsRect16 (GDI.194)
1531 */
1532 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1533 {
1534 FIXME(dc, "(): stub\n");
1535 return DCB_RESET; /* bounding rectangle always empty */
1536 }
1537
1538 /***********************************************************************
1539 * SetBoundsRect16 (GDI.193)
1540 */
1541 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1542 {
1543 FIXME(dc, "(): stub\n");
1544 return DCB_DISABLE; /* bounding rectangle always empty */
1545 }
1546
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