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,                            /* 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 }