| /* |
| * Enhanced MetaFile driver initialisation functions |
| * |
| * Copyright 1999 Huw D M Davies |
| */ |
| |
| #include "windef.h" |
| #include "wingdi.h" |
| #include "dc.h" |
| #include "heap.h" |
| #include "global.h" |
| #include "enhmetafile.h" |
| #include "enhmetafiledrv.h" |
| #include "wine/winestring.h" |
| #include "debugtools.h" |
| |
| #include <string.h> |
| |
| DEFAULT_DEBUG_CHANNEL(enhmetafile) |
| |
| static const DC_FUNCTIONS EMFDRV_Funcs = |
| { |
| NULL, /* pAbortDoc */ |
| EMFDRV_Arc, /* pArc */ |
| NULL, /* pBitBlt */ |
| NULL, /* pBitmapBits */ |
| EMFDRV_Chord, /* pChord */ |
| NULL, /* pCreateBitmap */ |
| NULL, /* no implementation */ /* pCreateDC */ |
| NULL, /* pCreateDIBSection */ |
| NULL, /* pCreateDIBSection16 */ |
| NULL, /* no implementation */ /* pDeleteDC */ |
| NULL, /* pDeleteObject */ |
| NULL, /* pDeviceCapabilities */ |
| EMFDRV_Ellipse, /* pEllipse */ |
| NULL, /* pEndDoc */ |
| NULL, /* pEndPage */ |
| NULL, /* pEnumDeviceFonts */ |
| NULL, /* pEscape */ |
| EMFDRV_ExcludeClipRect, /* pExcludeClipRect */ |
| NULL, /* pExtDeviceMode */ |
| EMFDRV_ExtFloodFill, /* pExtFloodFill */ |
| NULL, /* pExtTextOut */ |
| EMFDRV_FillRgn, /* pFillRgn */ |
| EMFDRV_FrameRgn, /* pFrameRgn */ |
| NULL, /* pGetCharWidth */ |
| NULL, /* no implementation */ /* pGetPixel */ |
| NULL, /* pGetTextExtentPoint */ |
| NULL, /* pGetTextMetrics */ |
| EMFDRV_IntersectClipRect, /* pIntersectClipRect */ |
| EMFDRV_InvertRgn, /* pInvertRgn */ |
| EMFDRV_LineTo, /* pLineTo */ |
| NULL, /* pLoadOEMResource */ |
| EMFDRV_MoveToEx, /* pMoveToEx */ |
| EMFDRV_OffsetClipRgn, /* pOffsetClipRgn */ |
| NULL, /* pOffsetViewportOrg */ |
| NULL, /* pOffsetWindowOrg */ |
| EMFDRV_PaintRgn, /* pPaintRgn */ |
| NULL, /* pPatBlt */ |
| EMFDRV_Pie, /* pPie */ |
| EMFDRV_PolyPolygon, /* pPolyPolygon */ |
| EMFDRV_PolyPolyline, /* pPolyPolyline */ |
| EMFDRV_Polygon, /* pPolygon */ |
| EMFDRV_Polyline, /* pPolyline */ |
| NULL, /* pPolyBezier */ |
| NULL, /* pRealizePalette */ |
| EMFDRV_Rectangle, /* pRectangle */ |
| EMFDRV_RestoreDC, /* pRestoreDC */ |
| EMFDRV_RoundRect, /* pRoundRect */ |
| EMFDRV_SaveDC, /* pSaveDC */ |
| EMFDRV_ScaleViewportExt, /* pScaleViewportExt */ |
| EMFDRV_ScaleWindowExt, /* pScaleWindowExt */ |
| NULL, /* pSelectClipRgn */ |
| EMFDRV_SelectObject, /* pSelectObject */ |
| NULL, /* pSelectPalette */ |
| EMFDRV_SetBkColor, /* pSetBkColor */ |
| EMFDRV_SetBkMode, /* pSetBkMode */ |
| NULL, /* pSetDeviceClipping */ |
| NULL, /* pSetDIBitsToDevice */ |
| EMFDRV_SetMapMode, /* pSetMapMode */ |
| EMFDRV_SetMapperFlags, /* pSetMapperFlags */ |
| NULL, /* pSetPixel */ |
| EMFDRV_SetPolyFillMode, /* pSetPolyFillMode */ |
| EMFDRV_SetROP2, /* pSetROP2 */ |
| NULL, /* pSetRelAbs */ |
| EMFDRV_SetStretchBltMode, /* pSetStretchBltMode */ |
| EMFDRV_SetTextAlign, /* pSetTextAlign */ |
| NULL, /* pSetTextCharacterExtra */ |
| EMFDRV_SetTextColor, /* pSetTextColor */ |
| NULL, /* pSetTextJustification */ |
| EMFDRV_SetViewportExt, /* pSetViewportExt */ |
| EMFDRV_SetViewportOrg, /* pSetViewportOrg */ |
| EMFDRV_SetWindowExt, /* pSetWindowExt */ |
| EMFDRV_SetWindowOrg, /* pSetWindowOrg */ |
| NULL, /* pStartDoc */ |
| NULL, /* pStartPage */ |
| NULL, /* pStretchBlt */ |
| NULL /* pStretchDIBits */ |
| }; |
| |
| |
| /********************************************************************** |
| * EMFDRV_DeleteDC |
| */ |
| static BOOL EMFDRV_DeleteDC( DC *dc ) |
| { |
| EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dc->physDev; |
| |
| if (physDev->emh) HeapFree( SystemHeap, 0, physDev->emh ); |
| HeapFree( SystemHeap, 0, physDev ); |
| dc->physDev = NULL; |
| GDI_FreeObject(dc->hSelf); |
| return TRUE; |
| } |
| |
| |
| /****************************************************************** |
| * EMFDRV_WriteRecord |
| * |
| * Warning: this function can change the pointer to the metafile header. |
| */ |
| BOOL EMFDRV_WriteRecord( DC *dc, EMR *emr ) |
| { |
| DWORD len; |
| ENHMETAHEADER *emh; |
| EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dc->physDev; |
| |
| physDev->emh->nBytes += emr->nSize; |
| physDev->emh->nRecords++; |
| |
| if(physDev->hFile) { |
| TRACE("Writing record to disk\n"); |
| if (!WriteFile(physDev->hFile, (char *)emr, emr->nSize, NULL, NULL)) |
| return FALSE; |
| } else { |
| len = physDev->emh->nBytes; |
| emh = HeapReAlloc( SystemHeap, 0, physDev->emh, len ); |
| if (!emh) return FALSE; |
| physDev->emh = emh; |
| memcpy((CHAR *)physDev->emh + physDev->emh->nBytes - emr->nSize, emr, |
| emr->nSize); |
| } |
| return TRUE; |
| } |
| |
| |
| /****************************************************************** |
| * EMFDRV_UpdateBBox |
| */ |
| void EMFDRV_UpdateBBox( DC *dc, RECTL *rect ) |
| { |
| EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dc->physDev; |
| RECTL *bounds = &physDev->emh->rclBounds; |
| |
| if(bounds->left > bounds->right) {/* first rect */ |
| *bounds = *rect; |
| return; |
| } |
| bounds->left = MIN(bounds->left, rect->left); |
| bounds->top = MIN(bounds->top, rect->top); |
| bounds->right = MAX(bounds->right, rect->right); |
| bounds->bottom = MAX(bounds->bottom, rect->bottom); |
| return; |
| } |
| |
| /****************************************************************** |
| * EMFDRV_AddHandleDC |
| * |
| * Note: this function assumes that we never delete objects. |
| * If we do someday, we'll need to maintain a table to re-use deleted |
| * handles. |
| */ |
| int EMFDRV_AddHandleDC( DC *dc ) |
| { |
| EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dc->physDev; |
| physDev->emh->nHandles++; |
| return physDev->nextHandle++; |
| } |
| |
| |
| /********************************************************************** |
| * CreateEnhMetaFileA (GDI32.41) |
| */ |
| HDC WINAPI CreateEnhMetaFileA( |
| HDC hdc, /* optional reference DC */ |
| LPCSTR filename, /* optional filename for disk metafiles */ |
| const RECT *rect, /* optional bounding rectangle */ |
| LPCSTR description /* optional description */ |
| ) |
| { |
| LPWSTR filenameW = NULL; |
| LPWSTR descriptionW = NULL; |
| HDC hReturnDC; |
| DWORD len1, len2; |
| |
| if(filename) |
| filenameW = HEAP_strdupAtoW( GetProcessHeap(), 0, filename ); |
| |
| if(description) { |
| len1 = strlen(description); |
| len2 = strlen(description + len1 + 1); |
| descriptionW = HeapAlloc( GetProcessHeap(), 0, (len1 + len2 + 3) * 2); |
| lstrcpyAtoW(descriptionW, description ); |
| lstrcpyAtoW(descriptionW + len1 + 1 , description + len1 + 1); |
| *(descriptionW + len1 + len2 + 2) = 0; |
| } |
| |
| hReturnDC = CreateEnhMetaFileW(hdc, filenameW, rect, descriptionW); |
| |
| if(filenameW) |
| HeapFree( GetProcessHeap(), 0, filenameW ); |
| if(descriptionW) |
| HeapFree( GetProcessHeap(), 0, descriptionW ); |
| |
| return hReturnDC; |
| } |
| |
| /********************************************************************** |
| * CreateEnhMetaFileW (GDI32.42) |
| */ |
| HDC WINAPI CreateEnhMetaFileW( |
| HDC hdc, /* optional reference DC */ |
| LPCWSTR filename, /* optional filename for disk metafiles */ |
| const RECT* rect, /* optional bounding rectangle */ |
| LPCWSTR description /* optional description */ |
| ) |
| { |
| DC *dc; |
| EMFDRV_PDEVICE *physDev; |
| HFILE hFile; |
| DWORD size = 0, length = 0; |
| |
| TRACE("'%s'\n", debugstr_w(filename) ); |
| |
| if (!(dc = DC_AllocDC( &EMFDRV_Funcs ))) return 0; |
| dc->header.wMagic = ENHMETAFILE_DC_MAGIC; |
| |
| physDev = (EMFDRV_PDEVICE *)HeapAlloc(SystemHeap,0,sizeof(*physDev)); |
| if (!physDev) { |
| GDI_HEAP_FREE( dc->hSelf ); |
| return 0; |
| } |
| dc->physDev = physDev; |
| |
| if(description) { /* App name\0Title\0\0 */ |
| length = lstrlenW(description); |
| length += lstrlenW(description + length + 1); |
| length += 3; |
| length *= 2; |
| } |
| size = sizeof(ENHMETAHEADER) + (length + 3) / 4 * 4; |
| |
| if (!(physDev->emh = HeapAlloc( SystemHeap, HEAP_ZERO_MEMORY, size))) { |
| HeapFree( SystemHeap, 0, physDev ); |
| GDI_HEAP_FREE( dc->hSelf ); |
| return 0; |
| } |
| |
| physDev->nextHandle = 1; |
| physDev->hFile = 0; |
| |
| physDev->emh->iType = EMR_HEADER; |
| physDev->emh->nSize = size; |
| physDev->emh->dSignature = ENHMETA_SIGNATURE; |
| physDev->emh->nVersion = 0x10000; |
| physDev->emh->nBytes = physDev->emh->nSize; |
| physDev->emh->nRecords = 1; |
| physDev->emh->nHandles = 1; |
| physDev->emh->rclBounds.left = physDev->emh->rclBounds.top = 0; |
| physDev->emh->rclBounds.right = physDev->emh->rclBounds.bottom = -1; |
| physDev->emh->nDescription = length / 2; |
| physDev->emh->offDescription = length ? sizeof(ENHMETAHEADER) : 0; |
| memcpy((char *)physDev->emh + sizeof(ENHMETAHEADER), description, length); |
| |
| if (filename) /* disk based metafile */ |
| { |
| if ((hFile = CreateFileW(filename, GENERIC_WRITE | GENERIC_READ, 0, |
| NULL, CREATE_ALWAYS, 0, -1)) == HFILE_ERROR) { |
| EMFDRV_DeleteDC( dc ); |
| return 0; |
| } |
| if (!WriteFile( hFile, (LPSTR)physDev->emh, size, NULL, NULL )) { |
| EMFDRV_DeleteDC( dc ); |
| return 0; |
| } |
| physDev->hFile = hFile; |
| } |
| |
| TRACE("returning %04x\n", dc->hSelf); |
| return dc->hSelf; |
| |
| } |
| |
| /****************************************************************** |
| * CloseEnhMetaFile |
| */ |
| HENHMETAFILE WINAPI CloseEnhMetaFile( HDC hdc /* metafile DC */ ) |
| { |
| HENHMETAFILE hmf; |
| EMFDRV_PDEVICE *physDev; |
| DC *dc; |
| EMREOF emr; |
| HANDLE hMapping = 0; |
| |
| TRACE("(%04x)\n", hdc ); |
| |
| if (!(dc = (DC *) GDI_GetObjPtr( hdc, ENHMETAFILE_DC_MAGIC ))) return 0; |
| physDev = (EMFDRV_PDEVICE *)dc->physDev; |
| |
| emr.emr.iType = EMR_EOF; |
| emr.emr.nSize = sizeof(emr); |
| emr.nPalEntries = 0; |
| emr.offPalEntries = 0; |
| emr.nSizeLast = emr.emr.nSize; |
| EMFDRV_WriteRecord( dc, &emr.emr ); |
| |
| if (physDev->hFile) /* disk based metafile */ |
| { |
| if (SetFilePointer(physDev->hFile, 0, NULL, FILE_BEGIN) != 0) { |
| EMFDRV_DeleteDC( dc ); |
| return 0; |
| } |
| |
| if (!WriteFile(physDev->hFile, (LPSTR)physDev->emh, |
| sizeof(*physDev->emh), NULL, NULL)) { |
| EMFDRV_DeleteDC( dc ); |
| return 0; |
| } |
| HeapFree( SystemHeap, 0, physDev->emh ); |
| hMapping = CreateFileMappingA(physDev->hFile, NULL, PAGE_READONLY, 0, |
| 0, NULL); |
| TRACE("hMapping = %08x\n", hMapping ); |
| physDev->emh = MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0); |
| TRACE("view = %p\n", physDev->emh ); |
| } |
| |
| |
| hmf = EMF_Create_HENHMETAFILE( physDev->emh, physDev->hFile, hMapping ); |
| physDev->emh = NULL; /* So it won't be deleted */ |
| EMFDRV_DeleteDC( dc ); |
| return hmf; |
| } |
| |
| |
