init.c

Wine-20031016

/*
 * Enhanced MetaFile driver initialisation functions
 *
 * Copyright 1999 Huw D M Davies
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <stdarg.h>
#include <string.h>

#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "gdi.h"
#include "enhmfdrv/enhmetafiledrv.h"
#include "wine/debug.h"

WINE_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 */
    EMFDRV_BitBlt,                   /* pBitBlt */
    NULL,                            /* pChoosePixelFormat */
    EMFDRV_Chord,                    /* pChord */
    EMFDRV_CloseFigure,              /* pCloseFigure */
    NULL,                            /* pCreateBitmap */
    NULL,                            /* pCreateDC */
    NULL,                            /* pCreateDIBSection */
    NULL,                            /* pDeleteBitmap */
    NULL,                            /* pDeleteDC */
    NULL,                            /* pDescribePixelFormat */
    NULL,                            /* pDeviceCapabilities */
    EMFDRV_Ellipse,                  /* pEllipse */
    NULL,                            /* pEndDoc */
    NULL,                            /* pEndPage */
    EMFDRV_EndPath,                  /* pEndPath */
    NULL,                            /* pEnumDeviceFonts */
    EMFDRV_ExcludeClipRect,          /* pExcludeClipRect */
    NULL,                            /* pExtDeviceMode */
    NULL,                            /* pExtEscape */
    EMFDRV_ExtFloodFill,             /* pExtFloodFill */
    EMFDRV_ExtSelectClipRgn,         /* pExtSelectClipRgn */
    EMFDRV_ExtTextOut,               /* pExtTextOut */
    EMFDRV_FillPath,                 /* pFillPath */
    EMFDRV_FillRgn,                  /* pFillRgn */
    EMFDRV_FlattenPath,              /* pFlattenPath */
    EMFDRV_FrameRgn,                 /* pFrameRgn */
    EMFDRV_GdiComment,               /* pGdiComment */
    NULL,                            /* pGetBitmapBits */
    NULL,                            /* pGetCharWidth */
    NULL,                            /* pGetDCOrgEx */
    NULL,                            /* pGetDIBColorTable */
    NULL,                            /* pGetDIBits */
    EMFDRV_GetDeviceCaps,            /* pGetDeviceCaps */
    NULL,                            /* pGetDeviceGammaRamp */
    NULL,                            /* pGetNearestColor */
    NULL,                            /* pGetPixel */
    NULL,                            /* pGetPixelFormat */
    NULL,                            /* pGetSystemPaletteEntries */
    NULL,                            /* pGetTextExtentPoint */
    NULL,                            /* pGetTextMetrics */
    EMFDRV_IntersectClipRect,        /* pIntersectClipRect */
    EMFDRV_InvertRgn,                /* pInvertRgn */
    EMFDRV_LineTo,                   /* pLineTo */
    EMFDRV_ModifyWorldTransform,     /* pModifyWorldTransform */
    EMFDRV_MoveTo,                   /* pMoveTo */
    EMFDRV_OffsetClipRgn,            /* pOffsetClipRgn */
    EMFDRV_OffsetViewportOrg,        /* pOffsetViewportOrg */
    EMFDRV_OffsetWindowOrg,          /* pOffsetWindowOrg */
    EMFDRV_PaintRgn,                 /* pPaintRgn */
    EMFDRV_PatBlt,                   /* 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,                            /* pRealizeDefaultPalette */
    NULL,                            /* pRealizePalette */
    EMFDRV_Rectangle,                /* pRectangle */
    NULL,                            /* pResetDC */
    EMFDRV_RestoreDC,                /* pRestoreDC */
    EMFDRV_RoundRect,                /* pRoundRect */
    EMFDRV_SaveDC,                   /* pSaveDC */
    EMFDRV_ScaleViewportExt,         /* pScaleViewportExt */
    EMFDRV_ScaleWindowExt,           /* pScaleWindowExt */
    EMFDRV_SelectBitmap,             /* pSelectBitmap */
    EMFDRV_SelectBrush,              /* pSelectBrush */
    EMFDRV_SelectClipPath,           /* pSelectClipPath */
    EMFDRV_SelectFont,               /* pSelectFont */
    NULL,                            /* pSelectPalette */
    EMFDRV_SelectPen,                /* pSelectPen */
    EMFDRV_SetArcDirection,          /* pSetArcDirection */
    NULL,                            /* pSetBitmapBits */
    EMFDRV_SetBkColor,               /* pSetBkColor */
    EMFDRV_SetBkMode,                /* pSetBkMode */
    NULL,                            /* pSetDCOrg */
    NULL,                            /* pSetDIBColorTable */
    NULL,                            /* pSetDIBits */
    EMFDRV_SetDIBitsToDevice,        /* pSetDIBitsToDevice */
    NULL,                            /* pSetDeviceClipping */
    NULL,                            /* pSetDeviceGammaRamp */
    EMFDRV_SetMapMode,               /* pSetMapMode */
    EMFDRV_SetMapperFlags,           /* pSetMapperFlags */
    NULL,                            /* pSetPixel */
    NULL,                            /* pSetPixelFormat */
    EMFDRV_SetPolyFillMode,          /* pSetPolyFillMode */
    EMFDRV_SetROP2,                  /* pSetROP2 */
    NULL,                            /* pSetRelAbs */
    EMFDRV_SetStretchBltMode,        /* pSetStretchBltMode */
    EMFDRV_SetTextAlign,             /* pSetTextAlign */
    NULL,                            /* pSetTextCharacterExtra */
    EMFDRV_SetTextColor,             /* pSetTextColor */
    EMFDRV_SetTextJustification,     /* pSetTextJustification */ 
    EMFDRV_SetViewportExt,           /* pSetViewportExt */
    EMFDRV_SetViewportOrg,           /* pSetViewportOrg */
    EMFDRV_SetWindowExt,             /* pSetWindowExt */
    EMFDRV_SetWindowOrg,             /* pSetWindowOrg */
    EMFDRV_SetWorldTransform,        /* pSetWorldTransform */
    NULL,                            /* pStartDoc */
    NULL,                            /* pStartPage */
    EMFDRV_StretchBlt,               /* pStretchBlt */
    EMFDRV_StretchDIBits,            /* pStretchDIBits */
    EMFDRV_StrokeAndFillPath,        /* pStrokeAndFillPath */
    EMFDRV_StrokePath,               /* pStrokePath */
    NULL,                            /* pSwapBuffers */
    EMFDRV_WidenPath                 /* pWidenPath */
};


/**********************************************************************
 *	     EMFDRV_DeleteDC
 */
static BOOL EMFDRV_DeleteDC( PHYSDEV dev )
{
    EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
    DC *dc = physDev->dc;

    if (physDev->emh) HeapFree( GetProcessHeap(), 0, physDev->emh );
    HeapFree( GetProcessHeap(), 0, physDev );
    dc->physDev = NULL;
    GDI_FreeObject( dc->hSelf, dc );
    return TRUE;
}


/******************************************************************
 *         EMFDRV_WriteRecord
 *
 * Warning: this function can change the pointer to the metafile header.
 */
BOOL EMFDRV_WriteRecord( PHYSDEV dev, EMR *emr )
{
    DWORD len;
    ENHMETAHEADER *emh;
    EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;

    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 {
        DWORD nEmfSize = HeapSize(GetProcessHeap(), 0, physDev->emh);
        len = physDev->emh->nBytes;
        if (len > nEmfSize) {
            nEmfSize += (nEmfSize / 2) + emr->nSize;
            emh = HeapReAlloc(GetProcessHeap(), 0, physDev->emh, nEmfSize);
            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( PHYSDEV dev, RECTL *rect )
{
    EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
    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( PHYSDEV dev )
{
    EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
    physDev->emh->nHandles++;
    return physDev->nextHandle++;
}