| /* | |
| * 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 "winuser.h" | |
| #include <string.h> | |
| DEFAULT_DEBUG_CHANNEL(enhmetafile) | |
| static const DC_FUNCTIONS EMFDRV_Funcs = | |
| { | |
| NULL, /* pAbortDoc */ | |
| EMFDRV_AbortPath, /* pAbortPath */ | |
| NULL, /* pAngleArc */ | |
| EMFDRV_Arc, /* pArc */ | |
| NULL, /* pArcTo */ | |
| EMFDRV_BeginPath, /* pBeginPath */ | |
| NULL, /* pBitBlt */ | |
| NULL, /* pBitmapBits */ | |
| EMFDRV_Chord, /* pChord */ | |
| EMFDRV_CloseFigure, /* pCloseFigure */ | |
| 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 */ | |
| EMFDRV_EndPath, /* pEndPath */ | |
| NULL, /* pEnumDeviceFonts */ | |
| NULL, /* pEscape */ | |
| EMFDRV_ExcludeClipRect, /* pExcludeClipRect */ | |
| NULL, /* pExtDeviceMode */ | |
| EMFDRV_ExtFloodFill, /* pExtFloodFill */ | |
| NULL, /* pExtTextOut */ | |
| EMFDRV_FillPath, /* pFillPath */ | |
| EMFDRV_FillRgn, /* pFillRgn */ | |
| EMFDRV_FlattenPath, /* pFlattenPath */ | |
| EMFDRV_FrameRgn, /* pFrameRgn */ | |
| NULL, /* pGetCharWidth */ | |
| NULL, /* pGetDCOrgEx */ | |
| 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 */ | |
| NULL, /* pPolyBezier */ | |
| NULL, /* pPolyBezierTo */ | |
| NULL, /* pPolyDraw */ | |
| EMFDRV_PolyPolygon, /* pPolyPolygon */ | |
| EMFDRV_PolyPolyline, /* pPolyPolyline */ | |
| EMFDRV_Polygon, /* pPolygon */ | |
| EMFDRV_Polyline, /* pPolyline */ | |
| NULL, /* pPolylineTo */ | |
| NULL, /* pRealizePalette */ | |
| EMFDRV_Rectangle, /* pRectangle */ | |
| EMFDRV_RestoreDC, /* pRestoreDC */ | |
| EMFDRV_RoundRect, /* pRoundRect */ | |
| EMFDRV_SaveDC, /* pSaveDC */ | |
| EMFDRV_ScaleViewportExt, /* pScaleViewportExt */ | |
| EMFDRV_ScaleWindowExt, /* pScaleWindowExt */ | |
| EMFDRV_SelectClipPath, /* pSelectClipPath */ | |
| 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_StrokeAndFillPath, /* pStrokeAndFillPath */ | |
| EMFDRV_StrokePath, /* pStrokePath */ | |
| EMFDRV_WidenPath /* pWiddenPath */ | |
| }; | |
| /********************************************************************** | |
| * EMFDRV_DeleteDC | |
| */ | |
| static BOOL EMFDRV_DeleteDC( DC *dc ) | |
| { | |
| EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dc->physDev; | |
| if (physDev->emh) HeapFree( GetProcessHeap(), 0, physDev->emh ); | |
| HeapFree( GetProcessHeap(), 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( GetProcessHeap(), 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; | |
| HDC hRefDC = hdc ? hdc : GetDC(0); /* If no ref, use current display */ | |
| 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(GetProcessHeap(),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( GetProcessHeap(), HEAP_ZERO_MEMORY, size))) { | |
| HeapFree( GetProcessHeap(), 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->rclBounds.left = physDev->emh->rclBounds.top = 0; | |
| physDev->emh->rclBounds.right = physDev->emh->rclBounds.bottom = -1; | |
| 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->sReserved = 0; /* According to docs, this is reserved and must be 0 */ | |
| physDev->emh->nDescription = length / 2; | |
| physDev->emh->offDescription = length ? sizeof(ENHMETAHEADER) : 0; | |
| physDev->emh->nPalEntries = 0; /* I guess this should start at 0 */ | |
| /* Size in pixels */ | |
| physDev->emh->szlDevice.cx = GetDeviceCaps( hRefDC, HORZRES ); | |
| physDev->emh->szlDevice.cy = GetDeviceCaps( hRefDC, VERTRES ); | |
| /* Size in millimeters */ | |
| physDev->emh->szlMillimeters.cx = GetDeviceCaps( hRefDC, HORZSIZE ); | |
| physDev->emh->szlMillimeters.cy = GetDeviceCaps( hRefDC, VERTSIZE ); | |
| 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; | |
| } | |
| if( !hdc ) | |
| ReleaseDC( 0, hRefDC ); | |
| 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( GetProcessHeap(), 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; | |
| } | |