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