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 <stdarg.h>
  22 #include <string.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "wingdi.h"
  27 #include "gdi.h"
  28 #include "enhmfdrv/enhmetafiledrv.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(enhmetafile);
  32
  33 static const DC_FUNCTIONS EMFDRV_Funcs =
  34 {
  35     NULL,                            /* pAbortDoc */
  36     EMFDRV_AbortPath,                /* pAbortPath */
  37     NULL,                            /* pAngleArc */
  38     EMFDRV_Arc,                      /* pArc */
  39     NULL,                            /* pArcTo */
  40     EMFDRV_BeginPath,                /* pBeginPath */
  41     NULL,                            /* pBitBlt */
  42     NULL,                            /* pChoosePixelFormat */
  43     EMFDRV_Chord,                    /* pChord */
  44     EMFDRV_CloseFigure,              /* pCloseFigure */
  45     NULL,                            /* pCreateBitmap */
  46     NULL,                            /* pCreateDC */
  47     NULL,                            /* pCreateDIBSection */
  48     NULL,                            /* pDeleteBitmap */
  49     NULL,                            /* pDeleteDC */
  50     NULL,                            /* pDescribePixelFormat */
  51     NULL,                            /* pDeviceCapabilities */
  52     EMFDRV_Ellipse,                  /* pEllipse */
  53     NULL,                            /* pEndDoc */
  54     NULL,                            /* pEndPage */
  55     EMFDRV_EndPath,                  /* pEndPath */
  56     NULL,                            /* pEnumDeviceFonts */
  57     EMFDRV_ExcludeClipRect,          /* pExcludeClipRect */
  58     NULL,                            /* pExtDeviceMode */
  59     NULL,                            /* pExtEscape */
  60     EMFDRV_ExtFloodFill,             /* pExtFloodFill */
  61     EMFDRV_ExtSelectClipRgn,         /* pExtSelectClipRgn */
  62     EMFDRV_ExtTextOut,               /* pExtTextOut */
  63     EMFDRV_FillPath,                 /* pFillPath */
  64     EMFDRV_FillRgn,                  /* pFillRgn */
  65     EMFDRV_FlattenPath,              /* pFlattenPath */
  66     EMFDRV_FrameRgn,                 /* pFrameRgn */
  67     EMFDRV_GdiComment,               /* pGdiComment */
  68     NULL,                            /* pGetBitmapBits */
  69     NULL,                            /* pGetCharWidth */
  70     NULL,                            /* pGetDCOrgEx */
  71     NULL,                            /* pGetDIBColorTable */
  72     NULL,                            /* pGetDIBits */
  73     EMFDRV_GetDeviceCaps,            /* pGetDeviceCaps */
  74     NULL,                            /* pGetDeviceGammaRamp */
  75     NULL,                            /* pGetNearestColor */
  76     NULL,                            /* pGetPixel */
  77     NULL,                            /* pGetPixelFormat */
  78     NULL,                            /* pGetSystemPaletteEntries */
  79     NULL,                            /* pGetTextExtentPoint */
  80     NULL,                            /* pGetTextMetrics */
  81     EMFDRV_IntersectClipRect,        /* pIntersectClipRect */
  82     EMFDRV_InvertRgn,                /* pInvertRgn */
  83     EMFDRV_LineTo,                   /* pLineTo */
  84     EMFDRV_ModifyWorldTransform,     /* pModifyWorldTransform */
  85     EMFDRV_MoveTo,                   /* pMoveTo */
  86     EMFDRV_OffsetClipRgn,            /* pOffsetClipRgn */
  87     NULL,                            /* pOffsetViewportOrg */
  88     NULL,                            /* pOffsetWindowOrg */
  89     EMFDRV_PaintRgn,                 /* pPaintRgn */
  90     EMFDRV_PatBlt,                   /* pPatBlt */
  91     EMFDRV_Pie,                      /* pPie */
  92     NULL,                            /* pPolyBezier */
  93     NULL,                            /* pPolyBezierTo */
  94     NULL,                            /* pPolyDraw */
  95     EMFDRV_PolyPolygon,              /* pPolyPolygon */
  96     EMFDRV_PolyPolyline,             /* pPolyPolyline */
  97     EMFDRV_Polygon,                  /* pPolygon */
  98     EMFDRV_Polyline,                 /* pPolyline */
  99     NULL,                            /* pPolylineTo */
 100     NULL,                            /* pRealizeDefaultPalette */
 101     NULL,                            /* pRealizePalette */
 102     EMFDRV_Rectangle,                /* pRectangle */
 103     NULL,                            /* pResetDC */
 104     EMFDRV_RestoreDC,                /* pRestoreDC */
 105     EMFDRV_RoundRect,                /* pRoundRect */
 106     EMFDRV_SaveDC,                   /* pSaveDC */
 107     EMFDRV_ScaleViewportExt,         /* pScaleViewportExt */
 108     EMFDRV_ScaleWindowExt,           /* pScaleWindowExt */
 109     EMFDRV_SelectBitmap,             /* pSelectBitmap */
 110     EMFDRV_SelectBrush,              /* pSelectBrush */
 111     EMFDRV_SelectClipPath,           /* pSelectClipPath */
 112     EMFDRV_SelectFont,               /* pSelectFont */
 113     NULL,                            /* pSelectPalette */
 114     EMFDRV_SelectPen,                /* pSelectPen */
 115     EMFDRV_SetArcDirection,          /* pSetArcDirection */
 116     NULL,                            /* pSetBitmapBits */
 117     EMFDRV_SetBkColor,               /* pSetBkColor */
 118     EMFDRV_SetBkMode,                /* pSetBkMode */
 119     NULL,                            /* pSetDCOrg */
 120     NULL,                            /* pSetDIBColorTable */
 121     NULL,                            /* pSetDIBits */
 122     NULL,                            /* pSetDIBitsToDevice */
 123     NULL,                            /* pSetDeviceClipping */
 124     NULL,                            /* pSetDeviceGammaRamp */
 125     EMFDRV_SetMapMode,               /* pSetMapMode */
 126     EMFDRV_SetMapperFlags,           /* pSetMapperFlags */
 127     NULL,                            /* pSetPixel */
 128     NULL,                            /* pSetPixelFormat */
 129     EMFDRV_SetPolyFillMode,          /* pSetPolyFillMode */
 130     EMFDRV_SetROP2,                  /* pSetROP2 */
 131     NULL,                            /* pSetRelAbs */
 132     EMFDRV_SetStretchBltMode,        /* pSetStretchBltMode */
 133     EMFDRV_SetTextAlign,             /* pSetTextAlign */
 134     NULL,                            /* pSetTextCharacterExtra */
 135     EMFDRV_SetTextColor,             /* pSetTextColor */
 136     NULL,                            /* pSetTextJustification */
 137     EMFDRV_SetViewportExt,           /* pSetViewportExt */
 138     EMFDRV_SetViewportOrg,           /* pSetViewportOrg */
 139     EMFDRV_SetWindowExt,             /* pSetWindowExt */
 140     EMFDRV_SetWindowOrg,             /* pSetWindowOrg */
 141     EMFDRV_SetWorldTransform,        /* pSetWorldTransform */
 142     NULL,                            /* pStartDoc */
 143     NULL,                            /* pStartPage */
 144     NULL,                            /* pStretchBlt */
 145     EMFDRV_StretchDIBits,            /* pStretchDIBits */
 146     EMFDRV_StrokeAndFillPath,        /* pStrokeAndFillPath */
 147     EMFDRV_StrokePath,               /* pStrokePath */
 148     NULL,                            /* pSwapBuffers */
 149     EMFDRV_WidenPath                 /* pWidenPath */
 150 };
 151
 152
 153 /**********************************************************************
 154  *           EMFDRV_DeleteDC
 155  */
 156 static BOOL EMFDRV_DeleteDC( PHYSDEV dev )
 157 {
 158     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 159     DC *dc = physDev->dc;
 160
 161     if (physDev->emh) HeapFree( GetProcessHeap(), 0, physDev->emh );
 162     HeapFree( GetProcessHeap(), 0, physDev );
 163     dc->physDev = NULL;
 164     GDI_FreeObject( dc->hSelf, dc );
 165     return TRUE;
 166 }
 167
 168
 169 /******************************************************************
 170  *         EMFDRV_WriteRecord
 171  *
 172  * Warning: this function can change the pointer to the metafile header.
 173  */
 174 BOOL EMFDRV_WriteRecord( PHYSDEV dev, EMR *emr )
 175 {
 176     DWORD len;
 177     ENHMETAHEADER *emh;
 178     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 179
 180     physDev->emh->nBytes += emr->nSize;
 181     physDev->emh->nRecords++;
 182
 183     if(physDev->hFile) {
 184         TRACE("Writing record to disk\n");
 185         if (!WriteFile(physDev->hFile, (char *)emr, emr->nSize, NULL, NULL))
 186             return FALSE;
 187     } else {
 188         len = physDev->emh->nBytes;
 189         emh = HeapReAlloc( GetProcessHeap(), 0, physDev->emh, len );
 190         if (!emh) return FALSE;
 191         physDev->emh = emh;
 192         memcpy((CHAR *)physDev->emh + physDev->emh->nBytes - emr->nSize, emr,
 193                emr->nSize);
 194     }
 195     return TRUE;
 196 }
 197
 198
 199 /******************************************************************
 200  *         EMFDRV_UpdateBBox
 201  */
 202 void EMFDRV_UpdateBBox( PHYSDEV dev, RECTL *rect )
 203 {
 204     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 205     RECTL *bounds = &physDev->emh->rclBounds;
 206
 207     if(bounds->left > bounds->right) {/* first rect */
 208         *bounds = *rect;
 209         return;
 210     }
 211     bounds->left   = min(bounds->left,   rect->left);
 212     bounds->top    = min(bounds->top,    rect->top);
 213     bounds->right  = max(bounds->right,  rect->right);
 214     bounds->bottom = max(bounds->bottom, rect->bottom);
 215     return;
 216 }
 217
 218 /******************************************************************
 219  *         EMFDRV_AddHandleDC
 220  *
 221  * Note: this function assumes that we never delete objects.
 222  * If we do someday, we'll need to maintain a table to re-use deleted
 223  * handles.
 224  */
 225 int EMFDRV_AddHandleDC( PHYSDEV dev )
 226 {
 227     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 228     physDev->emh->nHandles++;
 229     return physDev->nextHandle++;
 230 }
 231
 232
 233 /**********************************************************************
 234  *          CreateEnhMetaFileA   (GDI32.@)
 235  */
 236 HDC WINAPI CreateEnhMetaFileA(
 237     HDC hdc,           /* [in] optional reference DC */
 238     LPCSTR filename,   /* [in] optional filename for disk metafiles */
 239     const RECT *rect,  /* [in] optional bounding rectangle */
 240     LPCSTR description /* [in] optional description */
 241     )
 242 {
 243     LPWSTR filenameW = NULL;
 244     LPWSTR descriptionW = NULL;
 245     HDC hReturnDC;
 246     DWORD len1, len2, total;
 247
 248     if(filename)
 249     {
 250         total = MultiByteToWideChar( CP_ACP, 0, filename, -1, NULL, 0 );
 251         filenameW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
 252         MultiByteToWideChar( CP_ACP, 0, filename, -1, filenameW, total );
 253     }
 254     if(description) {
 255         len1 = strlen(description);
 256         len2 = strlen(description + len1 + 1);
 257         total = MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, NULL, 0 );
 258         descriptionW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
 259         MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, descriptionW, total );
 260     }
 261
 262     hReturnDC = CreateEnhMetaFileW(hdc, filenameW, rect, descriptionW);
 263
 264     if(filenameW)
 265         HeapFree( GetProcessHeap(), 0, filenameW );
 266     if(descriptionW)
 267         HeapFree( GetProcessHeap(), 0, descriptionW );
 268
 269     return hReturnDC;
 270 }
 271
 272 /**********************************************************************
 273  *          CreateEnhMetaFileW   (GDI32.@)
 274  */
 275 HDC WINAPI CreateEnhMetaFileW(
 276     HDC           hdc,        /* [in] optional reference DC */
 277     LPCWSTR       filename,   /* [in] optional filename for disk metafiles */
 278     const RECT*   rect,       /* [in] optional bounding rectangle */
 279     LPCWSTR       description /* [in] optional description */
 280     )
 281 {
 282     static const WCHAR displayW[] = {'D','I','S','P','L','A','Y',0};
 283     HDC ret;
 284     DC *dc;
 285     HDC hRefDC = hdc ? hdc : CreateDCW(displayW,NULL,NULL,NULL);
 286         /* If no ref, use current display */
 287     EMFDRV_PDEVICE *physDev;
 288     HANDLE hFile;
 289     DWORD size = 0, length = 0;
 290
 291     TRACE("%s\n", debugstr_w(filename) );
 292
 293     if (!(dc = DC_AllocDC( &EMFDRV_Funcs, ENHMETAFILE_DC_MAGIC ))) return 0;
 294
 295     physDev = (EMFDRV_PDEVICE *)HeapAlloc(GetProcessHeap(),0,sizeof(*physDev));
 296     if (!physDev) {
 297         GDI_FreeObject( dc->hSelf, dc );
 298         return 0;
 299     }
 300     dc->physDev = (PHYSDEV)physDev;
 301     physDev->hdc = dc->hSelf;
 302     physDev->dc = dc;
 303
 304     if(description) { /* App name\0Title\0\0 */
 305         length = lstrlenW(description);
 306         length += lstrlenW(description + length + 1);
 307         length += 3;
 308         length *= 2;
 309     }
 310     size = sizeof(ENHMETAHEADER) + (length + 3) / 4 * 4;
 311
 312     if (!(physDev->emh = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size))) {
 313         HeapFree( GetProcessHeap(), 0, physDev );
 314         GDI_FreeObject( dc->hSelf, dc );
 315         return 0;
 316     }
 317
 318     physDev->nextHandle = 1;
 319     physDev->hFile = 0;
 320
 321     physDev->horzres = GetDeviceCaps(hRefDC, HORZRES);
 322     physDev->vertres = GetDeviceCaps(hRefDC, VERTRES);
 323     physDev->logpixelsx = GetDeviceCaps(hRefDC, LOGPIXELSX);
 324     physDev->logpixelsy = GetDeviceCaps(hRefDC, LOGPIXELSY);
 325     physDev->horzsize = GetDeviceCaps(hRefDC, HORZSIZE);
 326     physDev->vertsize = GetDeviceCaps(hRefDC, VERTSIZE);
 327     physDev->bitspixel = GetDeviceCaps(hRefDC, BITSPIXEL);
 328     physDev->textcaps = GetDeviceCaps(hRefDC, TEXTCAPS);
 329     physDev->rastercaps = GetDeviceCaps(hRefDC, RASTERCAPS);
 330     physDev->technology = GetDeviceCaps(hRefDC, TECHNOLOGY);
 331     physDev->planes = GetDeviceCaps(hRefDC, PLANES);
 332
 333     physDev->emh->iType = EMR_HEADER;
 334     physDev->emh->nSize = size;
 335
 336     physDev->emh->rclBounds.left = physDev->emh->rclBounds.top = 0;
 337     physDev->emh->rclBounds.right = physDev->emh->rclBounds.bottom = -1;
 338
 339     if(rect) {
 340         physDev->emh->rclFrame.left   = rect->left;
 341         physDev->emh->rclFrame.top    = rect->top;
 342         physDev->emh->rclFrame.right  = rect->right;
 343         physDev->emh->rclFrame.bottom = rect->bottom;
 344     } else {  /* Set this to {0,0 - -1,-1} and update it at the end */
 345         physDev->emh->rclFrame.left = physDev->emh->rclFrame.top = 0;
 346         physDev->emh->rclFrame.right = physDev->emh->rclFrame.bottom = -1;
 347     }
 348
 349     physDev->emh->dSignature = ENHMETA_SIGNATURE;
 350     physDev->emh->nVersion = 0x10000;
 351     physDev->emh->nBytes = physDev->emh->nSize;
 352     physDev->emh->nRecords = 1;
 353     physDev->emh->nHandles = 1;
 354
 355     physDev->emh->sReserved = 0; /* According to docs, this is reserved and must be 0 */
 356     physDev->emh->nDescription = length / 2;
 357
 358     physDev->emh->offDescription = length ? sizeof(ENHMETAHEADER) : 0;
 359
 360     physDev->emh->nPalEntries = 0; /* I guess this should start at 0 */
 361
 362     /* Size in pixels */
 363     physDev->emh->szlDevice.cx = physDev->horzres;
 364     physDev->emh->szlDevice.cy = physDev->vertres;
 365
 366     /* Size in millimeters */
 367     physDev->emh->szlMillimeters.cx = physDev->horzsize;
 368     physDev->emh->szlMillimeters.cy = physDev->vertsize;
 369
 370     /* Size in micrometers */
 371     physDev->emh->szlMicrometers.cx = physDev->horzsize * 1000;
 372     physDev->emh->szlMicrometers.cy = physDev->vertsize * 1000;
 373
 374     memcpy((char *)physDev->emh + sizeof(ENHMETAHEADER), description, length);
 375
 376     if (filename)  /* disk based metafile */
 377     {
 378         if ((hFile = CreateFileW(filename, GENERIC_WRITE | GENERIC_READ, 0,
 379                                  NULL, CREATE_ALWAYS, 0, 0)) == INVALID_HANDLE_VALUE) {
 380             EMFDRV_DeleteDC( dc->physDev );
 381             return 0;
 382         }
 383         if (!WriteFile( hFile, (LPSTR)physDev->emh, size, NULL, NULL )) {
 384             EMFDRV_DeleteDC( dc->physDev );
 385             return 0;
 386         }
 387         physDev->hFile = hFile;
 388     }
 389
 390     TRACE("returning %p\n", dc->hSelf);
 391     ret = dc->hSelf;
 392     GDI_ReleaseObj( dc->hSelf );
 393
 394     if( !hdc )
 395       DeleteDC( hRefDC );
 396
 397     return ret;
 398 }
 399
 400 /******************************************************************
 401  *             CloseEnhMetaFile (GDI32.@)
 402  */
 403 HENHMETAFILE WINAPI CloseEnhMetaFile(HDC hdc) /* [in] metafile DC */
 404 {
 405     HENHMETAFILE hmf;
 406     EMFDRV_PDEVICE *physDev;
 407     DC *dc;
 408     EMREOF emr;
 409     HANDLE hMapping = 0;
 410
 411     TRACE("(%p)\n", hdc );
 412
 413     if (!(dc = (DC *) GDI_GetObjPtr( hdc, ENHMETAFILE_DC_MAGIC ))) return 0;
 414     physDev = (EMFDRV_PDEVICE *)dc->physDev;
 415
 416     emr.emr.iType = EMR_EOF;
 417     emr.emr.nSize = sizeof(emr);
 418     emr.nPalEntries = 0;
 419     emr.offPalEntries = 0;
 420     emr.nSizeLast = emr.emr.nSize;
 421     EMFDRV_WriteRecord( dc->physDev, &emr.emr );
 422
 423     /* Update rclFrame if not initialized in CreateEnhMetaFile */
 424     if(physDev->emh->rclFrame.left > physDev->emh->rclFrame.right) {
 425         physDev->emh->rclFrame.left = physDev->emh->rclBounds.left *
 426           physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
 427         physDev->emh->rclFrame.top = physDev->emh->rclBounds.top *
 428           physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
 429         physDev->emh->rclFrame.right = physDev->emh->rclBounds.right *
 430           physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
 431         physDev->emh->rclFrame.bottom = physDev->emh->rclBounds.bottom *
 432           physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
 433     }
 434
 435     if (physDev->hFile)  /* disk based metafile */
 436     {
 437         if (SetFilePointer(physDev->hFile, 0, NULL, FILE_BEGIN) != 0)
 438         {
 439             CloseHandle( physDev->hFile );
 440             EMFDRV_DeleteDC( dc->physDev );
 441             return 0;
 442         }
 443
 444         if (!WriteFile(physDev->hFile, (LPSTR)physDev->emh,
 445                        sizeof(*physDev->emh), NULL, NULL))
 446         {
 447             CloseHandle( physDev->hFile );
 448             EMFDRV_DeleteDC( dc->physDev );
 449             return 0;
 450         }
 451         HeapFree( GetProcessHeap(), 0, physDev->emh );
 452         hMapping = CreateFileMappingA(physDev->hFile, NULL, PAGE_READONLY, 0,
 453                                       0, NULL);
 454         TRACE("hMapping = %p\n", hMapping );
 455         physDev->emh = MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0);
 456         TRACE("view = %p\n", physDev->emh );
 457         CloseHandle( hMapping );
 458         CloseHandle( physDev->hFile );
 459     }
 460
 461     hmf = EMF_Create_HENHMETAFILE( physDev->emh, (physDev->hFile != 0) );
 462     physDev->emh = NULL;  /* So it won't be deleted */
 463     EMFDRV_DeleteDC( dc->physDev );
 464     return hmf;
 465 }