1 /*
2 * Enhanced MetaFile driver initialisation functions
3 *
4 * Copyright 1999 Huw D M Davies
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include <assert.h>
22 #include <stdarg.h>
23 #include <string.h>
24
25 #include "windef.h"
26 #include "winbase.h"
27 #include "wingdi.h"
28 #include "gdi_private.h"
29 #include "enhmfdrv/enhmetafiledrv.h"
30 #include "wine/debug.h"
31
32 WINE_DEFAULT_DEBUG_CHANNEL(enhmetafile);
33
34 static const DC_FUNCTIONS EMFDRV_Funcs =
35 {
36 NULL, /* pAbortDoc */
37 EMFDRV_AbortPath, /* pAbortPath */
38 NULL, /* pAlphaBlend */
39 NULL, /* pAngleArc */
40 EMFDRV_Arc, /* pArc */
41 NULL, /* pArcTo */
42 EMFDRV_BeginPath, /* pBeginPath */
43 EMFDRV_BitBlt, /* pBitBlt */
44 NULL, /* pChoosePixelFormat */
45 EMFDRV_Chord, /* pChord */
46 EMFDRV_CloseFigure, /* pCloseFigure */
47 NULL, /* pCreateBitmap */
48 NULL, /* pCreateDC */
49 NULL, /* pCreateDIBSection */
50 NULL, /* pDeleteBitmap */
51 NULL, /* pDeleteDC */
52 EMFDRV_DeleteObject, /* pDeleteObject */
53 NULL, /* pDescribePixelFormat */
54 NULL, /* pDeviceCapabilities */
55 EMFDRV_Ellipse, /* pEllipse */
56 NULL, /* pEndDoc */
57 NULL, /* pEndPage */
58 EMFDRV_EndPath, /* pEndPath */
59 NULL, /* pEnumDeviceFonts */
60 EMFDRV_ExcludeClipRect, /* pExcludeClipRect */
61 NULL, /* pExtDeviceMode */
62 NULL, /* pExtEscape */
63 EMFDRV_ExtFloodFill, /* pExtFloodFill */
64 EMFDRV_ExtSelectClipRgn, /* pExtSelectClipRgn */
65 EMFDRV_ExtTextOut, /* pExtTextOut */
66 EMFDRV_FillPath, /* pFillPath */
67 EMFDRV_FillRgn, /* pFillRgn */
68 EMFDRV_FlattenPath, /* pFlattenPath */
69 EMFDRV_FrameRgn, /* pFrameRgn */
70 EMFDRV_GdiComment, /* pGdiComment */
71 NULL, /* pGetBitmapBits */
72 NULL, /* pGetCharWidth */
73 NULL, /* pGetDCOrgEx */
74 NULL, /* pGetDIBColorTable */
75 NULL, /* pGetDIBits */
76 EMFDRV_GetDeviceCaps, /* pGetDeviceCaps */
77 NULL, /* pGetDeviceGammaRamp */
78 NULL, /* pGetICMProfile */
79 NULL, /* pGetNearestColor */
80 NULL, /* pGetPixel */
81 NULL, /* pGetPixelFormat */
82 NULL, /* pGetSystemPaletteEntries */
83 NULL, /* pGetTextExtentExPoint */
84 NULL, /* pGetTextMetrics */
85 EMFDRV_IntersectClipRect, /* pIntersectClipRect */
86 EMFDRV_InvertRgn, /* pInvertRgn */
87 EMFDRV_LineTo, /* pLineTo */
88 EMFDRV_ModifyWorldTransform, /* pModifyWorldTransform */
89 EMFDRV_MoveTo, /* pMoveTo */
90 EMFDRV_OffsetClipRgn, /* pOffsetClipRgn */
91 EMFDRV_OffsetViewportOrg, /* pOffsetViewportOrg */
92 EMFDRV_OffsetWindowOrg, /* pOffsetWindowOrg */
93 EMFDRV_PaintRgn, /* pPaintRgn */
94 EMFDRV_PatBlt, /* pPatBlt */
95 EMFDRV_Pie, /* pPie */
96 NULL, /* pPolyBezier */
97 NULL, /* pPolyBezierTo */
98 NULL, /* pPolyDraw */
99 EMFDRV_PolyPolygon, /* pPolyPolygon */
100 EMFDRV_PolyPolyline, /* pPolyPolyline */
101 EMFDRV_Polygon, /* pPolygon */
102 EMFDRV_Polyline, /* pPolyline */
103 NULL, /* pPolylineTo */
104 NULL, /* pRealizeDefaultPalette */
105 NULL, /* pRealizePalette */
106 EMFDRV_Rectangle, /* pRectangle */
107 NULL, /* pResetDC */
108 EMFDRV_RestoreDC, /* pRestoreDC */
109 EMFDRV_RoundRect, /* pRoundRect */
110 EMFDRV_SaveDC, /* pSaveDC */
111 EMFDRV_ScaleViewportExt, /* pScaleViewportExt */
112 EMFDRV_ScaleWindowExt, /* pScaleWindowExt */
113 EMFDRV_SelectBitmap, /* pSelectBitmap */
114 EMFDRV_SelectBrush, /* pSelectBrush */
115 EMFDRV_SelectClipPath, /* pSelectClipPath */
116 EMFDRV_SelectFont, /* pSelectFont */
117 EMFDRV_SelectPalette, /* pSelectPalette */
118 EMFDRV_SelectPen, /* pSelectPen */
119 EMFDRV_SetArcDirection, /* pSetArcDirection */
120 NULL, /* pSetBitmapBits */
121 EMFDRV_SetBkColor, /* pSetBkColor */
122 EMFDRV_SetBkMode, /* pSetBkMode */
123 NULL, /* pSetDCBrushColor */
124 NULL, /* pSetDCOrg */
125 NULL, /* pSetDCPenColor */
126 NULL, /* pSetDIBColorTable */
127 NULL, /* pSetDIBits */
128 EMFDRV_SetDIBitsToDevice, /* pSetDIBitsToDevice */
129 NULL, /* pSetDeviceClipping */
130 NULL, /* pSetDeviceGammaRamp */
131 EMFDRV_SetMapMode, /* pSetMapMode */
132 EMFDRV_SetMapperFlags, /* pSetMapperFlags */
133 EMFDRV_SetPixel, /* pSetPixel */
134 NULL, /* pSetPixelFormat */
135 EMFDRV_SetPolyFillMode, /* pSetPolyFillMode */
136 EMFDRV_SetROP2, /* pSetROP2 */
137 NULL, /* pSetRelAbs */
138 EMFDRV_SetStretchBltMode, /* pSetStretchBltMode */
139 EMFDRV_SetTextAlign, /* pSetTextAlign */
140 NULL, /* pSetTextCharacterExtra */
141 EMFDRV_SetTextColor, /* pSetTextColor */
142 EMFDRV_SetTextJustification, /* pSetTextJustification */
143 EMFDRV_SetViewportExt, /* pSetViewportExt */
144 EMFDRV_SetViewportOrg, /* pSetViewportOrg */
145 EMFDRV_SetWindowExt, /* pSetWindowExt */
146 EMFDRV_SetWindowOrg, /* pSetWindowOrg */
147 EMFDRV_SetWorldTransform, /* pSetWorldTransform */
148 NULL, /* pStartDoc */
149 NULL, /* pStartPage */
150 EMFDRV_StretchBlt, /* pStretchBlt */
151 EMFDRV_StretchDIBits, /* pStretchDIBits */
152 EMFDRV_StrokeAndFillPath, /* pStrokeAndFillPath */
153 EMFDRV_StrokePath, /* pStrokePath */
154 NULL, /* pSwapBuffers */
155 NULL, /* pUnrealizePalette */
156 EMFDRV_WidenPath /* pWidenPath */
157 };
158
159
160 /**********************************************************************
161 * EMFDRV_DeleteDC
162 */
163 static BOOL EMFDRV_DeleteDC( DC *dc )
164 {
165 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dc->physDev;
166 UINT index;
167
168 if (physDev->emh) HeapFree( GetProcessHeap(), 0, physDev->emh );
169 for(index = 0; index < physDev->handles_size; index++)
170 if(physDev->handles[index])
171 GDI_hdc_not_using_object(physDev->handles[index], physDev->hdc);
172 HeapFree( GetProcessHeap(), 0, physDev->handles );
173 HeapFree( GetProcessHeap(), 0, physDev );
174 dc->physDev = NULL;
175 free_dc_ptr( dc );
176 return TRUE;
177 }
178
179
180 /******************************************************************
181 * EMFDRV_WriteRecord
182 *
183 * Warning: this function can change the pointer to the metafile header.
184 */
185 BOOL EMFDRV_WriteRecord( PHYSDEV dev, EMR *emr )
186 {
187 DWORD len;
188 ENHMETAHEADER *emh;
189 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
190
191 TRACE("record %d, size %d %s\n",
192 emr->iType, emr->nSize, physDev->hFile ? "(to disk)" : "");
193
194 assert( !(emr->nSize & 3) );
195
196 physDev->emh->nBytes += emr->nSize;
197 physDev->emh->nRecords++;
198
199 if(physDev->hFile) {
200 if (!WriteFile(physDev->hFile, (char *)emr, emr->nSize, NULL, NULL))
201 return FALSE;
202 } else {
203 DWORD nEmfSize = HeapSize(GetProcessHeap(), 0, physDev->emh);
204 len = physDev->emh->nBytes;
205 if (len > nEmfSize) {
206 nEmfSize += (nEmfSize / 2) + emr->nSize;
207 emh = HeapReAlloc(GetProcessHeap(), 0, physDev->emh, nEmfSize);
208 if (!emh) return FALSE;
209 physDev->emh = emh;
210 }
211 memcpy((CHAR *)physDev->emh + physDev->emh->nBytes - emr->nSize, emr,
212 emr->nSize);
213 }
214 return TRUE;
215 }
216
217
218 /******************************************************************
219 * EMFDRV_UpdateBBox
220 */
221 void EMFDRV_UpdateBBox( PHYSDEV dev, RECTL *rect )
222 {
223 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
224 RECTL *bounds = &physDev->emh->rclBounds;
225 RECTL vportRect = *rect;
226
227 LPtoDP(physDev->hdc, (LPPOINT)&vportRect, 2);
228
229 /* The coordinate systems may be mirrored
230 (LPtoDP handles points, not rectangles) */
231 if (vportRect.left > vportRect.right)
232 {
233 LONG temp = vportRect.right;
234 vportRect.right = vportRect.left;
235 vportRect.left = temp;
236 }
237 if (vportRect.top > vportRect.bottom)
238 {
239 LONG temp = vportRect.bottom;
240 vportRect.bottom = vportRect.top;
241 vportRect.top = temp;
242 }
243
244 if (bounds->left > bounds->right)
245 {
246 /* first bounding rectangle */
247 *bounds = vportRect;
248 }
249 else
250 {
251 bounds->left = min(bounds->left, vportRect.left);
252 bounds->top = min(bounds->top, vportRect.top);
253 bounds->right = max(bounds->right, vportRect.right);
254 bounds->bottom = max(bounds->bottom, vportRect.bottom);
255 }
256 }
257
258 /**********************************************************************
259 * CreateEnhMetaFileA (GDI32.@)
260 */
261 HDC WINAPI CreateEnhMetaFileA(
262 HDC hdc, /* [in] optional reference DC */
263 LPCSTR filename, /* [in] optional filename for disk metafiles */
264 const RECT *rect, /* [in] optional bounding rectangle */
265 LPCSTR description /* [in] optional description */
266 )
267 {
268 LPWSTR filenameW = NULL;
269 LPWSTR descriptionW = NULL;
270 HDC hReturnDC;
271 DWORD len1, len2, total;
272
273 if(filename)
274 {
275 total = MultiByteToWideChar( CP_ACP, 0, filename, -1, NULL, 0 );
276 filenameW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
277 MultiByteToWideChar( CP_ACP, 0, filename, -1, filenameW, total );
278 }
279 if(description) {
280 len1 = strlen(description);
281 len2 = strlen(description + len1 + 1);
282 total = MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, NULL, 0 );
283 descriptionW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
284 MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, descriptionW, total );
285 }
286
287 hReturnDC = CreateEnhMetaFileW(hdc, filenameW, rect, descriptionW);
288
289 if(filenameW)
290 HeapFree( GetProcessHeap(), 0, filenameW );
291 if(descriptionW)
292 HeapFree( GetProcessHeap(), 0, descriptionW );
293
294 return hReturnDC;
295 }
296
297 /**********************************************************************
298 * CreateEnhMetaFileW (GDI32.@)
299 */
300 HDC WINAPI CreateEnhMetaFileW(
301 HDC hdc, /* [in] optional reference DC */
302 LPCWSTR filename, /* [in] optional filename for disk metafiles */
303 const RECT* rect, /* [in] optional bounding rectangle */
304 LPCWSTR description /* [in] optional description */
305 )
306 {
307 static const WCHAR displayW[] = {'D','I','S','P','L','A','Y',0};
308 HDC ret;
309 DC *dc;
310 HDC hRefDC = hdc ? hdc : CreateDCW(displayW,NULL,NULL,NULL);
311 /* If no ref, use current display */
312 EMFDRV_PDEVICE *physDev;
313 HANDLE hFile;
314 DWORD size = 0, length = 0;
315
316 TRACE("%s\n", debugstr_w(filename) );
317
318 if (!(dc = alloc_dc_ptr( &EMFDRV_Funcs, ENHMETAFILE_DC_MAGIC ))) return 0;
319
320 physDev = HeapAlloc(GetProcessHeap(),0,sizeof(*physDev));
321 if (!physDev) {
322 free_dc_ptr( dc );
323 return 0;
324 }
325 dc->physDev = (PHYSDEV)physDev;
326 physDev->hdc = dc->hSelf;
327
328 if(description) { /* App name\0Title\0\0 */
329 length = lstrlenW(description);
330 length += lstrlenW(description + length + 1);
331 length += 3;
332 length *= 2;
333 }
334 size = sizeof(ENHMETAHEADER) + (length + 3) / 4 * 4;
335
336 if (!(physDev->emh = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size))) {
337 HeapFree( GetProcessHeap(), 0, physDev );
338 free_dc_ptr( dc );
339 return 0;
340 }
341
342 physDev->handles = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, HANDLE_LIST_INC * sizeof(physDev->handles[0]));
343 physDev->handles_size = HANDLE_LIST_INC;
344 physDev->cur_handles = 1;
345 physDev->hFile = 0;
346
347 physDev->horzres = GetDeviceCaps(hRefDC, HORZRES);
348 physDev->vertres = GetDeviceCaps(hRefDC, VERTRES);
349 physDev->logpixelsx = GetDeviceCaps(hRefDC, LOGPIXELSX);
350 physDev->logpixelsy = GetDeviceCaps(hRefDC, LOGPIXELSY);
351 physDev->horzsize = GetDeviceCaps(hRefDC, HORZSIZE);
352 physDev->vertsize = GetDeviceCaps(hRefDC, VERTSIZE);
353 physDev->bitspixel = GetDeviceCaps(hRefDC, BITSPIXEL);
354 physDev->textcaps = GetDeviceCaps(hRefDC, TEXTCAPS);
355 physDev->rastercaps = GetDeviceCaps(hRefDC, RASTERCAPS);
356 physDev->technology = GetDeviceCaps(hRefDC, TECHNOLOGY);
357 physDev->planes = GetDeviceCaps(hRefDC, PLANES);
358 physDev->numcolors = GetDeviceCaps(hRefDC, NUMCOLORS);
359
360 physDev->emh->iType = EMR_HEADER;
361 physDev->emh->nSize = size;
362
363 physDev->emh->rclBounds.left = physDev->emh->rclBounds.top = 0;
364 physDev->emh->rclBounds.right = physDev->emh->rclBounds.bottom = -1;
365
366 if(rect) {
367 physDev->emh->rclFrame.left = rect->left;
368 physDev->emh->rclFrame.top = rect->top;
369 physDev->emh->rclFrame.right = rect->right;
370 physDev->emh->rclFrame.bottom = rect->bottom;
371 } else { /* Set this to {0,0 - -1,-1} and update it at the end */
372 physDev->emh->rclFrame.left = physDev->emh->rclFrame.top = 0;
373 physDev->emh->rclFrame.right = physDev->emh->rclFrame.bottom = -1;
374 }
375
376 physDev->emh->dSignature = ENHMETA_SIGNATURE;
377 physDev->emh->nVersion = 0x10000;
378 physDev->emh->nBytes = physDev->emh->nSize;
379 physDev->emh->nRecords = 1;
380 physDev->emh->nHandles = 1;
381
382 physDev->emh->sReserved = 0; /* According to docs, this is reserved and must be 0 */
383 physDev->emh->nDescription = length / 2;
384
385 physDev->emh->offDescription = length ? sizeof(ENHMETAHEADER) : 0;
386
387 physDev->emh->nPalEntries = 0; /* I guess this should start at 0 */
388
389 /* Size in pixels */
390 physDev->emh->szlDevice.cx = physDev->horzres;
391 physDev->emh->szlDevice.cy = physDev->vertres;
392
393 /* Size in millimeters */
394 physDev->emh->szlMillimeters.cx = physDev->horzsize;
395 physDev->emh->szlMillimeters.cy = physDev->vertsize;
396
397 /* Size in micrometers */
398 physDev->emh->szlMicrometers.cx = physDev->horzsize * 1000;
399 physDev->emh->szlMicrometers.cy = physDev->vertsize * 1000;
400
401 memcpy((char *)physDev->emh + sizeof(ENHMETAHEADER), description, length);
402
403 if (filename) /* disk based metafile */
404 {
405 if ((hFile = CreateFileW(filename, GENERIC_WRITE | GENERIC_READ, 0,
406 NULL, CREATE_ALWAYS, 0, 0)) == INVALID_HANDLE_VALUE) {
407 EMFDRV_DeleteDC( dc );
408 return 0;
409 }
410 if (!WriteFile( hFile, (LPSTR)physDev->emh, size, NULL, NULL )) {
411 EMFDRV_DeleteDC( dc );
412 return 0;
413 }
414 physDev->hFile = hFile;
415 }
416
417 TRACE("returning %p\n", dc->hSelf);
418 ret = dc->hSelf;
419 release_dc_ptr( dc );
420
421 if( !hdc )
422 DeleteDC( hRefDC );
423
424 return ret;
425 }
426
427 /******************************************************************
428 * CloseEnhMetaFile (GDI32.@)
429 */
430 HENHMETAFILE WINAPI CloseEnhMetaFile(HDC hdc) /* [in] metafile DC */
431 {
432 HENHMETAFILE hmf;
433 EMFDRV_PDEVICE *physDev;
434 DC *dc;
435 EMREOF emr;
436 HANDLE hMapping = 0;
437
438 TRACE("(%p)\n", hdc );
439
440 if (!(dc = get_dc_ptr( hdc ))) return NULL;
441 if (GDIMAGIC(dc->header.wMagic) != ENHMETAFILE_DC_MAGIC)
442 {
443 release_dc_ptr( dc );
444 return NULL;
445 }
446 if (dc->refcount != 1)
447 {
448 FIXME( "not deleting busy DC %p refcount %u\n", dc->hSelf, dc->refcount );
449 release_dc_ptr( dc );
450 return NULL;
451 }
452 physDev = (EMFDRV_PDEVICE *)dc->physDev;
453
454 if(dc->saveLevel)
455 RestoreDC(hdc, 1);
456
457 emr.emr.iType = EMR_EOF;
458 emr.emr.nSize = sizeof(emr);
459 emr.nPalEntries = 0;
460 emr.offPalEntries = FIELD_OFFSET(EMREOF, nSizeLast);
461 emr.nSizeLast = emr.emr.nSize;
462 EMFDRV_WriteRecord( dc->physDev, &emr.emr );
463
464 /* Update rclFrame if not initialized in CreateEnhMetaFile */
465 if(physDev->emh->rclFrame.left > physDev->emh->rclFrame.right) {
466 physDev->emh->rclFrame.left = physDev->emh->rclBounds.left *
467 physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
468 physDev->emh->rclFrame.top = physDev->emh->rclBounds.top *
469 physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
470 physDev->emh->rclFrame.right = physDev->emh->rclBounds.right *
471 physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
472 physDev->emh->rclFrame.bottom = physDev->emh->rclBounds.bottom *
473 physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
474 }
475
476 if (physDev->hFile) /* disk based metafile */
477 {
478 if (SetFilePointer(physDev->hFile, 0, NULL, FILE_BEGIN) != 0)
479 {
480 CloseHandle( physDev->hFile );
481 EMFDRV_DeleteDC( dc );
482 return 0;
483 }
484
485 if (!WriteFile(physDev->hFile, (LPSTR)physDev->emh,
486 sizeof(*physDev->emh), NULL, NULL))
487 {
488 CloseHandle( physDev->hFile );
489 EMFDRV_DeleteDC( dc );
490 return 0;
491 }
492 HeapFree( GetProcessHeap(), 0, physDev->emh );
493 hMapping = CreateFileMappingA(physDev->hFile, NULL, PAGE_READONLY, 0,
494 0, NULL);
495 TRACE("hMapping = %p\n", hMapping );
496 physDev->emh = MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0);
497 TRACE("view = %p\n", physDev->emh );
498 CloseHandle( hMapping );
499 CloseHandle( physDev->hFile );
500 }
501
502 hmf = EMF_Create_HENHMETAFILE( physDev->emh, (physDev->hFile != 0) );
503 physDev->emh = NULL; /* So it won't be deleted */
504 EMFDRV_DeleteDC( dc );
505 return hmf;
506 }
507
This page was automatically generated by the
LXR engine.
Visit the LXR main site for more
information.