?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Added function table to GDI objects for better encapsulation.
[wine.git] / dlls / gdi / enhmfdrv / init.c
bloba50243429ad5d9dccd624e3baabc8dd6f45b3d92
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #include <string.h>
22
23 #include "windef.h"
24 #include "wingdi.h"
25 #include "gdi.h"
26 #include "enhmfdrv/enhmetafiledrv.h"
27 #include "wine/debug.h"
28
29 WINE_DEFAULT_DEBUG_CHANNEL(enhmetafile);
30
31 static const DC_FUNCTIONS EMFDRV_Funcs =
32 {
33 NULL, /* pAbortDoc */
34 EMFDRV_AbortPath, /* pAbortPath */
35 NULL, /* pAngleArc */
36 EMFDRV_Arc, /* pArc */
37 NULL, /* pArcTo */
38 EMFDRV_BeginPath, /* pBeginPath */
39 NULL, /* pBitBlt */
40 NULL, /* pChoosePixelFormat */
41 EMFDRV_Chord, /* pChord */
42 EMFDRV_CloseFigure, /* pCloseFigure */
43 NULL, /* pCreateBitmap */
44 NULL, /* pCreateDC */
45 NULL, /* pCreateDIBSection */
46 NULL, /* pDeleteBitmap */
47 NULL, /* pDeleteDC */
48 NULL, /* pDescribePixelFormat */
49 NULL, /* pDeviceCapabilities */
50 EMFDRV_Ellipse, /* pEllipse */
51 NULL, /* pEndDoc */
52 NULL, /* pEndPage */
53 EMFDRV_EndPath, /* pEndPath */
54 NULL, /* pEnumDeviceFonts */
55 EMFDRV_ExcludeClipRect, /* pExcludeClipRect */
56 NULL, /* pExtDeviceMode */
57 NULL, /* pExtEscape */
58 EMFDRV_ExtFloodFill, /* pExtFloodFill */
59 EMFDRV_ExtSelectClipRgn, /* pExtSelectClipRgn */
60 NULL, /* pExtTextOut */
61 EMFDRV_FillPath, /* pFillPath */
62 EMFDRV_FillRgn, /* pFillRgn */
63 EMFDRV_FlattenPath, /* pFlattenPath */
64 EMFDRV_FrameRgn, /* pFrameRgn */
65 NULL, /* pGetBitmapBits */
66 NULL, /* pGetCharWidth */
67 NULL, /* pGetDCOrgEx */
68 NULL, /* pGetDIBColorTable */
69 NULL, /* pGetDIBits */
70 NULL, /* pGetDeviceCaps */
71 NULL, /* pGetDeviceGammaRamp */
72 NULL, /* pGetPixel */
73 NULL, /* pGetPixelFormat */
74 NULL, /* pGetTextExtentPoint */
75 NULL, /* pGetTextMetrics */
76 EMFDRV_IntersectClipRect, /* pIntersectClipRect */
77 EMFDRV_InvertRgn, /* pInvertRgn */
78 EMFDRV_LineTo, /* pLineTo */
79 EMFDRV_MoveTo, /* pMoveTo */
80 EMFDRV_OffsetClipRgn, /* pOffsetClipRgn */
81 NULL, /* pOffsetViewportOrg */
82 NULL, /* pOffsetWindowOrg */
83 EMFDRV_PaintRgn, /* pPaintRgn */
84 NULL, /* pPatBlt */
85 EMFDRV_Pie, /* pPie */
86 NULL, /* pPolyBezier */
87 NULL, /* pPolyBezierTo */
88 NULL, /* pPolyDraw */
89 EMFDRV_PolyPolygon, /* pPolyPolygon */
90 EMFDRV_PolyPolyline, /* pPolyPolyline */
91 EMFDRV_Polygon, /* pPolygon */
92 EMFDRV_Polyline, /* pPolyline */
93 NULL, /* pPolylineTo */
94 NULL, /* pRealizePalette */
95 EMFDRV_Rectangle, /* pRectangle */
96 NULL, /* pResetDC */
97 EMFDRV_RestoreDC, /* pRestoreDC */
98 EMFDRV_RoundRect, /* pRoundRect */
99 EMFDRV_SaveDC, /* pSaveDC */
100 EMFDRV_ScaleViewportExt, /* pScaleViewportExt */
101 EMFDRV_ScaleWindowExt, /* pScaleWindowExt */
102 EMFDRV_SelectBitmap, /* pSelectBitmap */
103 EMFDRV_SelectBrush, /* pSelectBrush */
104 EMFDRV_SelectClipPath, /* pSelectClipPath */
105 EMFDRV_SelectFont, /* pSelectFont */
106 NULL, /* pSelectPalette */
107 EMFDRV_SelectPen, /* pSelectPen */
108 NULL, /* pSetBitmapBits */
109 EMFDRV_SetBkColor, /* pSetBkColor */
110 EMFDRV_SetBkMode, /* pSetBkMode */
111 NULL, /* pSetDIBColorTable */
112 NULL, /* pSetDIBits */
113 NULL, /* pSetDIBitsToDevice */
114 NULL, /* pSetDeviceClipping */
115 NULL, /* pSetDeviceGammaRamp */
116 EMFDRV_SetMapMode, /* pSetMapMode */
117 EMFDRV_SetMapperFlags, /* pSetMapperFlags */
118 NULL, /* pSetPixel */
119 NULL, /* pSetPixelFormat */
120 EMFDRV_SetPolyFillMode, /* pSetPolyFillMode */
121 EMFDRV_SetROP2, /* pSetROP2 */
122 NULL, /* pSetRelAbs */
123 EMFDRV_SetStretchBltMode, /* pSetStretchBltMode */
124 EMFDRV_SetTextAlign, /* pSetTextAlign */
125 NULL, /* pSetTextCharacterExtra */
126 EMFDRV_SetTextColor, /* pSetTextColor */
127 NULL, /* pSetTextJustification */
128 EMFDRV_SetViewportExt, /* pSetViewportExt */
129 EMFDRV_SetViewportOrg, /* pSetViewportOrg */
130 EMFDRV_SetWindowExt, /* pSetWindowExt */
131 EMFDRV_SetWindowOrg, /* pSetWindowOrg */
132 NULL, /* pStartDoc */
133 NULL, /* pStartPage */
134 NULL, /* pStretchBlt */
135 NULL, /* pStretchDIBits */
136 EMFDRV_StrokeAndFillPath, /* pStrokeAndFillPath */
137 EMFDRV_StrokePath, /* pStrokePath */
138 NULL, /* pSwapBuffers */
139 EMFDRV_WidenPath /* pWiddenPath */
140 };
141
142
143 /**********************************************************************
144 * EMFDRV_DeleteDC
145 */
146 static BOOL EMFDRV_DeleteDC( PHYSDEV dev )
147 {
148 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
149 DC *dc = physDev->dc;
150
151 if (physDev->emh) HeapFree( GetProcessHeap(), 0, physDev->emh );
152 HeapFree( GetProcessHeap(), 0, physDev );
153 dc->physDev = NULL;
154 GDI_FreeObject( dc->hSelf, dc );
155 return TRUE;
156 }
157
158
159 /******************************************************************
160 * EMFDRV_WriteRecord
161 *
162 * Warning: this function can change the pointer to the metafile header.
163 */
164 BOOL EMFDRV_WriteRecord( PHYSDEV dev, EMR *emr )
165 {
166 DWORD len;
167 ENHMETAHEADER *emh;
168 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
169
170 physDev->emh->nBytes += emr->nSize;
171 physDev->emh->nRecords++;
172
173 if(physDev->hFile) {
174 TRACE("Writing record to disk\n");
175 if (!WriteFile(physDev->hFile, (char *)emr, emr->nSize, NULL, NULL))
176 return FALSE;
177 } else {
178 len = physDev->emh->nBytes;
179 emh = HeapReAlloc( GetProcessHeap(), 0, physDev->emh, len );
180 if (!emh) return FALSE;
181 physDev->emh = emh;
182 memcpy((CHAR *)physDev->emh + physDev->emh->nBytes - emr->nSize, emr,
183 emr->nSize);
184 }
185 return TRUE;
186 }
187
188
189 /******************************************************************
190 * EMFDRV_UpdateBBox
191 */
192 void EMFDRV_UpdateBBox( PHYSDEV dev, RECTL *rect )
193 {
194 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
195 RECTL *bounds = &physDev->emh->rclBounds;
196
197 if(bounds->left > bounds->right) {/* first rect */
198 *bounds = *rect;
199 return;
200 }
201 bounds->left = min(bounds->left, rect->left);
202 bounds->top = min(bounds->top, rect->top);
203 bounds->right = max(bounds->right, rect->right);
204 bounds->bottom = max(bounds->bottom, rect->bottom);
205 return;
206 }
207
208 /******************************************************************
209 * EMFDRV_AddHandleDC
210 *
211 * Note: this function assumes that we never delete objects.
212 * If we do someday, we'll need to maintain a table to re-use deleted
213 * handles.
214 */
215 int EMFDRV_AddHandleDC( PHYSDEV dev )
216 {
217 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
218 physDev->emh->nHandles++;
219 return physDev->nextHandle++;
220 }
221
222
223 /**********************************************************************
224 * CreateEnhMetaFileA (GDI32.@)
225 */
226 HDC WINAPI CreateEnhMetaFileA(
227 HDC hdc, /* [in] optional reference DC */
228 LPCSTR filename, /* [in] optional filename for disk metafiles */
229 const RECT *rect, /* [in] optional bounding rectangle */
230 LPCSTR description /* [in] optional description */
231 )
232 {
233 LPWSTR filenameW = NULL;
234 LPWSTR descriptionW = NULL;
235 HDC hReturnDC;
236 DWORD len1, len2, total;
237
238 if(filename)
239 {
240 total = MultiByteToWideChar( CP_ACP, 0, filename, -1, NULL, 0 );
241 filenameW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
242 MultiByteToWideChar( CP_ACP, 0, filename, -1, filenameW, total );
243 }
244 if(description) {
245 len1 = strlen(description);
246 len2 = strlen(description + len1 + 1);
247 total = MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, NULL, 0 );
248 descriptionW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
249 MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, descriptionW, total );
250 }
251
252 hReturnDC = CreateEnhMetaFileW(hdc, filenameW, rect, descriptionW);
253
254 if(filenameW)
255 HeapFree( GetProcessHeap(), 0, filenameW );
256 if(descriptionW)
257 HeapFree( GetProcessHeap(), 0, descriptionW );
258
259 return hReturnDC;
260 }
261
262 /**********************************************************************
263 * CreateEnhMetaFileW (GDI32.@)
264 */
265 HDC WINAPI CreateEnhMetaFileW(
266 HDC hdc, /* [in] optional reference DC */
267 LPCWSTR filename, /* [in] optional filename for disk metafiles */
268 const RECT* rect, /* [in] optional bounding rectangle */
269 LPCWSTR description /* [in] optional description */
270 )
271 {
272 HDC ret;
273 DC *dc;
274 HDC hRefDC = hdc ? hdc : CreateDCA("DISPLAY",NULL,NULL,NULL); /* If no ref, use current display */
275 EMFDRV_PDEVICE *physDev;
276 HFILE hFile;
277 DWORD size = 0, length = 0;
278
279 TRACE("%s\n", debugstr_w(filename) );
280
281 if (!(dc = DC_AllocDC( &EMFDRV_Funcs ))) return 0;
282 dc->header.wMagic = ENHMETAFILE_DC_MAGIC;
283
284 physDev = (EMFDRV_PDEVICE *)HeapAlloc(GetProcessHeap(),0,sizeof(*physDev));
285 if (!physDev) {
286 GDI_FreeObject( dc->hSelf, dc );
287 return 0;
288 }
289 dc->physDev = (PHYSDEV)physDev;
290 physDev->hdc = dc->hSelf;
291 physDev->dc = dc;
292
293 if(description) { /* App name\0Title\0\0 */
294 length = lstrlenW(description);
295 length += lstrlenW(description + length + 1);
296 length += 3;
297 length *= 2;
298 }
299 size = sizeof(ENHMETAHEADER) + (length + 3) / 4 * 4;
300
301 if (!(physDev->emh = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size))) {
302 HeapFree( GetProcessHeap(), 0, physDev );
303 GDI_FreeObject( dc->hSelf, dc );
304 return 0;
305 }
306
307 physDev->nextHandle = 1;
308 physDev->hFile = 0;
309
310 physDev->emh->iType = EMR_HEADER;
311 physDev->emh->nSize = size;
312
313 physDev->emh->rclBounds.left = physDev->emh->rclBounds.top = 0;
314 physDev->emh->rclBounds.right = physDev->emh->rclBounds.bottom = -1;
315
316 if(rect) {
317 physDev->emh->rclFrame.left = rect->left;
318 physDev->emh->rclFrame.top = rect->top;
319 physDev->emh->rclFrame.right = rect->right;
320 physDev->emh->rclFrame.bottom = rect->bottom;
321 } else { /* Set this to {0,0 - -1,-1} and update it at the end */
322 physDev->emh->rclFrame.left = physDev->emh->rclFrame.top = 0;
323 physDev->emh->rclFrame.right = physDev->emh->rclFrame.bottom = -1;
324 }
325
326 physDev->emh->dSignature = ENHMETA_SIGNATURE;
327 physDev->emh->nVersion = 0x10000;
328 physDev->emh->nBytes = physDev->emh->nSize;
329 physDev->emh->nRecords = 1;
330 physDev->emh->nHandles = 1;
331
332 physDev->emh->sReserved = 0; /* According to docs, this is reserved and must be 0 */
333 physDev->emh->nDescription = length / 2;
334
335 physDev->emh->offDescription = length ? sizeof(ENHMETAHEADER) : 0;
336
337 physDev->emh->nPalEntries = 0; /* I guess this should start at 0 */
338
339 /* Size in pixels */
340 physDev->emh->szlDevice.cx = GetDeviceCaps( hRefDC, HORZRES );
341 physDev->emh->szlDevice.cy = GetDeviceCaps( hRefDC, VERTRES );
342
343 /* Size in millimeters */
344 physDev->emh->szlMillimeters.cx = GetDeviceCaps( hRefDC, HORZSIZE );
345 physDev->emh->szlMillimeters.cy = GetDeviceCaps( hRefDC, VERTSIZE );
346
347 memcpy((char *)physDev->emh + sizeof(ENHMETAHEADER), description, length);
348
349 if (filename) /* disk based metafile */
350 {
351 if ((hFile = CreateFileW(filename, GENERIC_WRITE | GENERIC_READ, 0,
352 NULL, CREATE_ALWAYS, 0, 0)) == INVALID_HANDLE_VALUE) {
353 EMFDRV_DeleteDC( dc->physDev );
354 return 0;
355 }
356 if (!WriteFile( hFile, (LPSTR)physDev->emh, size, NULL, NULL )) {
357 EMFDRV_DeleteDC( dc->physDev );
358 return 0;
359 }
360 physDev->hFile = hFile;
361 }
362
363 TRACE("returning %04x\n", dc->hSelf);
364 ret = dc->hSelf;
365 GDI_ReleaseObj( dc->hSelf );
366
367 if( !hdc )
368 DeleteDC( hRefDC );
369
370 return ret;
371 }
372
373 /******************************************************************
374 * CloseEnhMetaFile (GDI32.@)
375 */
376 HENHMETAFILE WINAPI CloseEnhMetaFile(HDC hdc) /* [in] metafile DC */
377 {
378 HENHMETAFILE hmf;
379 EMFDRV_PDEVICE *physDev;
380 DC *dc;
381 EMREOF emr;
382 HANDLE hMapping = 0;
383
384 TRACE("(%04x)\n", hdc );
385
386 if (!(dc = (DC *) GDI_GetObjPtr( hdc, ENHMETAFILE_DC_MAGIC ))) return 0;
387 physDev = (EMFDRV_PDEVICE *)dc->physDev;
388
389 emr.emr.iType = EMR_EOF;
390 emr.emr.nSize = sizeof(emr);
391 emr.nPalEntries = 0;
392 emr.offPalEntries = 0;
393 emr.nSizeLast = emr.emr.nSize;
394 EMFDRV_WriteRecord( dc->physDev, &emr.emr );
395
396 /* Update rclFrame if not initialized in CreateEnhMetaFile */
397 if(physDev->emh->rclFrame.left > physDev->emh->rclFrame.right) {
398 physDev->emh->rclFrame.left = physDev->emh->rclBounds.left *
399 physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
400 physDev->emh->rclFrame.top = physDev->emh->rclBounds.top *
401 physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
402 physDev->emh->rclFrame.right = physDev->emh->rclBounds.right *
403 physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
404 physDev->emh->rclFrame.bottom = physDev->emh->rclBounds.bottom *
405 physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
406 }
407
408 if (physDev->hFile) /* disk based metafile */
409 {
410 if (SetFilePointer(physDev->hFile, 0, NULL, FILE_BEGIN) != 0)
411 {
412 CloseHandle( physDev->hFile );
413 EMFDRV_DeleteDC( dc->physDev );
414 return 0;
415 }
416
417 if (!WriteFile(physDev->hFile, (LPSTR)physDev->emh,
418 sizeof(*physDev->emh), NULL, NULL))
419 {
420 CloseHandle( physDev->hFile );
421 EMFDRV_DeleteDC( dc->physDev );
422 return 0;
423 }
424 HeapFree( GetProcessHeap(), 0, physDev->emh );
425 hMapping = CreateFileMappingA(physDev->hFile, NULL, PAGE_READONLY, 0,
426 0, NULL);
427 TRACE("hMapping = %08x\n", hMapping );
428 physDev->emh = MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0);
429 TRACE("view = %p\n", physDev->emh );
430 CloseHandle( hMapping );
431 CloseHandle( physDev->hFile );
432 }
433
434 hmf = EMF_Create_HENHMETAFILE( physDev->emh, (physDev->hFile != 0) );
435 physDev->emh = NULL; /* So it won't be deleted */
436 EMFDRV_DeleteDC( dc->physDev );
437 return hmf;
438 }
Windows API implementation