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