git.oblomov.eu Git - wine/blob - dlls/gdi/enhmfdrv/init.c

   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,                            /* pGetNearestColor */
  73     NULL,                            /* pGetPixel */
  74     NULL,                            /* pGetPixelFormat */
  75     NULL,                            /* pGetSystemPaletteEntries */
  76     NULL,                            /* pGetTextExtentPoint */
  77     NULL,                            /* pGetTextMetrics */
  78     EMFDRV_IntersectClipRect,        /* pIntersectClipRect */
  79     EMFDRV_InvertRgn,                /* pInvertRgn */
  80     EMFDRV_LineTo,                   /* pLineTo */
  81     EMFDRV_MoveTo,                   /* pMoveTo */
  82     EMFDRV_OffsetClipRgn,            /* pOffsetClipRgn */
  83     NULL,                            /* pOffsetViewportOrg */
  84     NULL,                            /* pOffsetWindowOrg */
  85     EMFDRV_PaintRgn,                 /* pPaintRgn */
  86     EMFDRV_PatBlt,                   /* pPatBlt */
  87     EMFDRV_Pie,                      /* pPie */
  88     NULL,                            /* pPolyBezier */
  89     NULL,                            /* pPolyBezierTo */
  90     NULL,                            /* pPolyDraw */
  91     EMFDRV_PolyPolygon,              /* pPolyPolygon */
  92     EMFDRV_PolyPolyline,             /* pPolyPolyline */
  93     EMFDRV_Polygon,                  /* pPolygon */
  94     EMFDRV_Polyline,                 /* pPolyline */
  95     NULL,                            /* pPolylineTo */
  96     NULL,                            /* pRealizeDefaultPalette */
  97     NULL,                            /* pRealizePalette */
  98     EMFDRV_Rectangle,                /* pRectangle */
  99     NULL,                            /* pResetDC */
 100     EMFDRV_RestoreDC,                /* pRestoreDC */
 101     EMFDRV_RoundRect,                /* pRoundRect */
 102     EMFDRV_SaveDC,                   /* pSaveDC */
 103     EMFDRV_ScaleViewportExt,         /* pScaleViewportExt */
 104     EMFDRV_ScaleWindowExt,           /* pScaleWindowExt */
 105     EMFDRV_SelectBitmap,             /* pSelectBitmap */
 106     EMFDRV_SelectBrush,              /* pSelectBrush */
 107     EMFDRV_SelectClipPath,           /* pSelectClipPath */
 108     EMFDRV_SelectFont,               /* pSelectFont */
 109     NULL,                            /* pSelectPalette */
 110     EMFDRV_SelectPen,                /* pSelectPen */
 111     NULL,                            /* pSetBitmapBits */
 112     EMFDRV_SetBkColor,               /* pSetBkColor */
 113     EMFDRV_SetBkMode,                /* pSetBkMode */
 114     NULL,                            /* pSetDCOrg */
 115     NULL,                            /* pSetDIBColorTable */
 116     NULL,                            /* pSetDIBits */
 117     NULL,                            /* pSetDIBitsToDevice */
 118     NULL,                            /* pSetDeviceClipping */
 119     NULL,                            /* pSetDeviceGammaRamp */
 120     EMFDRV_SetMapMode,               /* pSetMapMode */
 121     EMFDRV_SetMapperFlags,           /* pSetMapperFlags */
 122     NULL,                            /* pSetPixel */
 123     NULL,                            /* pSetPixelFormat */
 124     EMFDRV_SetPolyFillMode,          /* pSetPolyFillMode */
 125     EMFDRV_SetROP2,                  /* pSetROP2 */
 126     NULL,                            /* pSetRelAbs */
 127     EMFDRV_SetStretchBltMode,        /* pSetStretchBltMode */
 128     EMFDRV_SetTextAlign,             /* pSetTextAlign */
 129     NULL,                            /* pSetTextCharacterExtra */
 130     EMFDRV_SetTextColor,             /* pSetTextColor */
 131     NULL,                            /* pSetTextJustification */
 132     EMFDRV_SetViewportExt,           /* pSetViewportExt */
 133     EMFDRV_SetViewportOrg,           /* pSetViewportOrg */
 134     EMFDRV_SetWindowExt,             /* pSetWindowExt */
 135     EMFDRV_SetWindowOrg,             /* pSetWindowOrg */
 136     NULL,                            /* pStartDoc */
 137     NULL,                            /* pStartPage */
 138     NULL,                            /* pStretchBlt */
 139     NULL,                            /* pStretchDIBits */
 140     EMFDRV_StrokeAndFillPath,        /* pStrokeAndFillPath */
 141     EMFDRV_StrokePath,               /* pStrokePath */
 142     NULL,                            /* pSwapBuffers */
 143     EMFDRV_WidenPath                 /* pWiddenPath */
 144 };
 145
 146
 147 /**********************************************************************
 148  *           EMFDRV_DeleteDC
 149  */
 150 static BOOL EMFDRV_DeleteDC( PHYSDEV dev )
 151 {
 152     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 153     DC *dc = physDev->dc;
 154
 155     if (physDev->emh) HeapFree( GetProcessHeap(), 0, physDev->emh );
 156     HeapFree( GetProcessHeap(), 0, physDev );
 157     dc->physDev = NULL;
 158     GDI_FreeObject( dc->hSelf, dc );
 159     return TRUE;
 160 }
 161
 162
 163 /******************************************************************
 164  *         EMFDRV_WriteRecord
 165  *
 166  * Warning: this function can change the pointer to the metafile header.
 167  */
 168 BOOL EMFDRV_WriteRecord( PHYSDEV dev, EMR *emr )
 169 {
 170     DWORD len;
 171     ENHMETAHEADER *emh;
 172     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 173
 174     physDev->emh->nBytes += emr->nSize;
 175     physDev->emh->nRecords++;
 176
 177     if(physDev->hFile) {
 178         TRACE("Writing record to disk\n");
 179         if (!WriteFile(physDev->hFile, (char *)emr, emr->nSize, NULL, NULL))
 180             return FALSE;
 181     } else {
 182         len = physDev->emh->nBytes;
 183         emh = HeapReAlloc( GetProcessHeap(), 0, physDev->emh, len );
 184         if (!emh) return FALSE;
 185         physDev->emh = emh;
 186         memcpy((CHAR *)physDev->emh + physDev->emh->nBytes - emr->nSize, emr,
 187                emr->nSize);
 188     }
 189     return TRUE;
 190 }
 191
 192
 193 /******************************************************************
 194  *         EMFDRV_UpdateBBox
 195  */
 196 void EMFDRV_UpdateBBox( PHYSDEV dev, RECTL *rect )
 197 {
 198     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 199     RECTL *bounds = &physDev->emh->rclBounds;
 200
 201     if(bounds->left > bounds->right) {/* first rect */
 202         *bounds = *rect;
 203         return;
 204     }
 205     bounds->left   = min(bounds->left,   rect->left);
 206     bounds->top    = min(bounds->top,    rect->top);
 207     bounds->right  = max(bounds->right,  rect->right);
 208     bounds->bottom = max(bounds->bottom, rect->bottom);
 209     return;
 210 }
 211
 212 /******************************************************************
 213  *         EMFDRV_AddHandleDC
 214  *
 215  * Note: this function assumes that we never delete objects.
 216  * If we do someday, we'll need to maintain a table to re-use deleted
 217  * handles.
 218  */
 219 int EMFDRV_AddHandleDC( PHYSDEV dev )
 220 {
 221     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 222     physDev->emh->nHandles++;
 223     return physDev->nextHandle++;
 224 }
 225
 226
 227 /**********************************************************************
 228  *          CreateEnhMetaFileA   (GDI32.@)
 229  */
 230 HDC WINAPI CreateEnhMetaFileA(
 231     HDC hdc,           /* [in] optional reference DC */
 232     LPCSTR filename,   /* [in] optional filename for disk metafiles */
 233     const RECT *rect,  /* [in] optional bounding rectangle */
 234     LPCSTR description /* [in] optional description */
 235     )
 236 {
 237     LPWSTR filenameW = NULL;
 238     LPWSTR descriptionW = NULL;
 239     HDC hReturnDC;
 240     DWORD len1, len2, total;
 241
 242     if(filename)
 243     {
 244         total = MultiByteToWideChar( CP_ACP, 0, filename, -1, NULL, 0 );
 245         filenameW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
 246         MultiByteToWideChar( CP_ACP, 0, filename, -1, filenameW, total );
 247     }
 248     if(description) {
 249         len1 = strlen(description);
 250         len2 = strlen(description + len1 + 1);
 251         total = MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, NULL, 0 );
 252         descriptionW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
 253         MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, descriptionW, total );
 254     }
 255
 256     hReturnDC = CreateEnhMetaFileW(hdc, filenameW, rect, descriptionW);
 257
 258     if(filenameW)
 259         HeapFree( GetProcessHeap(), 0, filenameW );
 260     if(descriptionW)
 261         HeapFree( GetProcessHeap(), 0, descriptionW );
 262
 263     return hReturnDC;
 264 }
 265
 266 /**********************************************************************
 267  *          CreateEnhMetaFileW   (GDI32.@)
 268  */
 269 HDC WINAPI CreateEnhMetaFileW(
 270     HDC           hdc,        /* [in] optional reference DC */
 271     LPCWSTR       filename,   /* [in] optional filename for disk metafiles */
 272     const RECT*   rect,       /* [in] optional bounding rectangle */
 273     LPCWSTR       description /* [in] optional description */
 274     )
 275 {
 276     HDC ret;
 277     DC *dc;
 278     HDC hRefDC = hdc ? hdc : CreateDCA("DISPLAY",NULL,NULL,NULL); /* If no ref, use current display */
 279     EMFDRV_PDEVICE *physDev;
 280     HFILE hFile;
 281     DWORD size = 0, length = 0;
 282
 283     TRACE("%s\n", debugstr_w(filename) );
 284
 285     if (!(dc = DC_AllocDC( &EMFDRV_Funcs ))) return 0;
 286     dc->header.wMagic = ENHMETAFILE_DC_MAGIC;
 287
 288     physDev = (EMFDRV_PDEVICE *)HeapAlloc(GetProcessHeap(),0,sizeof(*physDev));
 289     if (!physDev) {
 290         GDI_FreeObject( dc->hSelf, dc );
 291         return 0;
 292     }
 293     dc->physDev = (PHYSDEV)physDev;
 294     physDev->hdc = dc->hSelf;
 295     physDev->dc = dc;
 296
 297     if(description) { /* App name\0Title\0\0 */
 298         length = lstrlenW(description);
 299         length += lstrlenW(description + length + 1);
 300         length += 3;
 301         length *= 2;
 302     }
 303     size = sizeof(ENHMETAHEADER) + (length + 3) / 4 * 4;
 304
 305     if (!(physDev->emh = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size))) {
 306         HeapFree( GetProcessHeap(), 0, physDev );
 307         GDI_FreeObject( dc->hSelf, dc );
 308         return 0;
 309     }
 310
 311     physDev->nextHandle = 1;
 312     physDev->hFile = 0;
 313
 314     physDev->emh->iType = EMR_HEADER;
 315     physDev->emh->nSize = size;
 316
 317     physDev->emh->rclBounds.left = physDev->emh->rclBounds.top = 0;
 318     physDev->emh->rclBounds.right = physDev->emh->rclBounds.bottom = -1;
 319
 320     if(rect) {
 321         physDev->emh->rclFrame.left   = rect->left;
 322         physDev->emh->rclFrame.top    = rect->top;
 323         physDev->emh->rclFrame.right  = rect->right;
 324         physDev->emh->rclFrame.bottom = rect->bottom;
 325     } else {  /* Set this to {0,0 - -1,-1} and update it at the end */
 326         physDev->emh->rclFrame.left = physDev->emh->rclFrame.top = 0;
 327         physDev->emh->rclFrame.right = physDev->emh->rclFrame.bottom = -1;
 328     }
 329
 330     physDev->emh->dSignature = ENHMETA_SIGNATURE;
 331     physDev->emh->nVersion = 0x10000;
 332     physDev->emh->nBytes = physDev->emh->nSize;
 333     physDev->emh->nRecords = 1;
 334     physDev->emh->nHandles = 1;
 335
 336     physDev->emh->sReserved = 0; /* According to docs, this is reserved and must be 0 */
 337     physDev->emh->nDescription = length / 2;
 338
 339     physDev->emh->offDescription = length ? sizeof(ENHMETAHEADER) : 0;
 340
 341     physDev->emh->nPalEntries = 0; /* I guess this should start at 0 */
 342
 343     /* Size in pixels */
 344     physDev->emh->szlDevice.cx = GetDeviceCaps( hRefDC, HORZRES );
 345     physDev->emh->szlDevice.cy = GetDeviceCaps( hRefDC, VERTRES );
 346
 347     /* Size in millimeters */
 348     physDev->emh->szlMillimeters.cx = GetDeviceCaps( hRefDC, HORZSIZE );
 349     physDev->emh->szlMillimeters.cy = GetDeviceCaps( hRefDC, VERTSIZE );
 350
 351     memcpy((char *)physDev->emh + sizeof(ENHMETAHEADER), description, length);
 352
 353     if (filename)  /* disk based metafile */
 354     {
 355         if ((hFile = CreateFileW(filename, GENERIC_WRITE | GENERIC_READ, 0,
 356                                  NULL, CREATE_ALWAYS, 0, 0)) == INVALID_HANDLE_VALUE) {
 357             EMFDRV_DeleteDC( dc->physDev );
 358             return 0;
 359         }
 360         if (!WriteFile( hFile, (LPSTR)physDev->emh, size, NULL, NULL )) {
 361             EMFDRV_DeleteDC( dc->physDev );
 362             return 0;
 363         }
 364         physDev->hFile = hFile;
 365     }
 366
 367     TRACE("returning %04x\n", dc->hSelf);
 368     ret = dc->hSelf;
 369     GDI_ReleaseObj( dc->hSelf );
 370
 371     if( !hdc )
 372       DeleteDC( hRefDC );
 373
 374     return ret;
 375 }
 376
 377 /******************************************************************
 378  *             CloseEnhMetaFile (GDI32.@)
 379  */
 380 HENHMETAFILE WINAPI CloseEnhMetaFile(HDC hdc) /* [in] metafile DC */
 381 {
 382     HENHMETAFILE hmf;
 383     EMFDRV_PDEVICE *physDev;
 384     DC *dc;
 385     EMREOF emr;
 386     HANDLE hMapping = 0;
 387
 388     TRACE("(%04x)\n", hdc );
 389
 390     if (!(dc = (DC *) GDI_GetObjPtr( hdc, ENHMETAFILE_DC_MAGIC ))) return 0;
 391     physDev = (EMFDRV_PDEVICE *)dc->physDev;
 392
 393     emr.emr.iType = EMR_EOF;
 394     emr.emr.nSize = sizeof(emr);
 395     emr.nPalEntries = 0;
 396     emr.offPalEntries = 0;
 397     emr.nSizeLast = emr.emr.nSize;
 398     EMFDRV_WriteRecord( dc->physDev, &emr.emr );
 399
 400     /* Update rclFrame if not initialized in CreateEnhMetaFile */
 401     if(physDev->emh->rclFrame.left > physDev->emh->rclFrame.right) {
 402         physDev->emh->rclFrame.left = physDev->emh->rclBounds.left *
 403           physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
 404         physDev->emh->rclFrame.top = physDev->emh->rclBounds.top *
 405           physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
 406         physDev->emh->rclFrame.right = physDev->emh->rclBounds.right *
 407           physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
 408         physDev->emh->rclFrame.bottom = physDev->emh->rclBounds.bottom *
 409           physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
 410     }
 411
 412     if (physDev->hFile)  /* disk based metafile */
 413     {
 414         if (SetFilePointer(physDev->hFile, 0, NULL, FILE_BEGIN) != 0)
 415         {
 416             CloseHandle( physDev->hFile );
 417             EMFDRV_DeleteDC( dc->physDev );
 418             return 0;
 419         }
 420
 421         if (!WriteFile(physDev->hFile, (LPSTR)physDev->emh,
 422                        sizeof(*physDev->emh), NULL, NULL))
 423         {
 424             CloseHandle( physDev->hFile );
 425             EMFDRV_DeleteDC( dc->physDev );
 426             return 0;
 427         }
 428         HeapFree( GetProcessHeap(), 0, physDev->emh );
 429         hMapping = CreateFileMappingA(physDev->hFile, NULL, PAGE_READONLY, 0,
 430                                       0, NULL);
 431         TRACE("hMapping = %08x\n", hMapping );
 432         physDev->emh = MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0);
 433         TRACE("view = %p\n", physDev->emh );
 434         CloseHandle( hMapping );
 435         CloseHandle( physDev->hFile );
 436     }
 437
 438     hmf = EMF_Create_HENHMETAFILE( physDev->emh, (physDev->hFile != 0) );
 439     physDev->emh = NULL;  /* So it won't be deleted */
 440     EMFDRV_DeleteDC( dc->physDev );
 441     return hmf;
 442 }