Sweden-Number/graphics/metafiledrv/graphics.c

404 lines
10 KiB
C

/*
* Metafile driver graphics functions
*
* Copyright 1993, 1994 Alexandre Julliard
*/
#include <stdlib.h>
#include <string.h>
#include "gdi.h"
#include "dc.h"
#include "region.h"
#include "metafiledrv.h"
#include "heap.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(metafile)
/**********************************************************************
* MFDRV_MoveToEx
*/
BOOL
MFDRV_MoveToEx(DC *dc,INT x,INT y,LPPOINT pt)
{
return MFDRV_MetaParam2(dc,META_MOVETO,x,y);
}
/***********************************************************************
* MFDRV_LineTo
*/
BOOL
MFDRV_LineTo( DC *dc, INT x, INT y )
{
return MFDRV_MetaParam2(dc, META_LINETO, x, y);
}
/***********************************************************************
* MFDRV_Arc
*/
BOOL
MFDRV_Arc( DC *dc, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return MFDRV_MetaParam8(dc, META_ARC, left, top, right, bottom,
xstart, ystart, xend, yend);
}
/***********************************************************************
* MFDRV_Pie
*/
BOOL
MFDRV_Pie( DC *dc, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return MFDRV_MetaParam8(dc, META_PIE, left, top, right, bottom,
xstart, ystart, xend, yend);
}
/***********************************************************************
* MFDRV_Chord
*/
BOOL
MFDRV_Chord( DC *dc, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return MFDRV_MetaParam8(dc, META_CHORD, left, top, right, bottom,
xstart, ystart, xend, yend);
}
/***********************************************************************
* MFDRV_Ellipse
*/
BOOL
MFDRV_Ellipse( DC *dc, INT left, INT top, INT right, INT bottom )
{
return MFDRV_MetaParam4(dc, META_ELLIPSE, left, top, right, bottom);
}
/***********************************************************************
* MFDRV_Rectangle
*/
BOOL
MFDRV_Rectangle(DC *dc, INT left, INT top, INT right, INT bottom)
{
return MFDRV_MetaParam4(dc, META_RECTANGLE, left, top, right, bottom);
}
/***********************************************************************
* MFDRV_RoundRect
*/
BOOL
MFDRV_RoundRect( DC *dc, INT left, INT top, INT right,
INT bottom, INT ell_width, INT ell_height )
{
return MFDRV_MetaParam6(dc, META_ROUNDRECT, left, top, right, bottom,
ell_width, ell_height);
}
/***********************************************************************
* MFDRV_SetPixel
*/
COLORREF
MFDRV_SetPixel( DC *dc, INT x, INT y, COLORREF color )
{
return MFDRV_MetaParam4(dc, META_SETPIXEL, x, y,HIWORD(color),
LOWORD(color));
}
/******************************************************************
* MFDRV_MetaPoly - implements Polygon and Polyline
*/
static BOOL MFDRV_MetaPoly(DC *dc, short func, LPPOINT16 pt, short count)
{
BOOL ret;
DWORD len;
METARECORD *mr;
len = sizeof(METARECORD) + (count * 4);
if (!(mr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, len )))
return FALSE;
mr->rdSize = len / 2;
mr->rdFunction = func;
*(mr->rdParm) = count;
memcpy(mr->rdParm + 1, pt, count * 4);
ret = MFDRV_WriteRecord( dc, mr, mr->rdSize * 2);
HeapFree( GetProcessHeap(), 0, mr);
return ret;
}
/**********************************************************************
* MFDRV_Polyline
*/
BOOL
MFDRV_Polyline( DC *dc, const POINT* pt, INT count )
{
register int i;
LPPOINT16 pt16;
BOOL16 ret;
pt16 = (LPPOINT16)HeapAlloc( GetProcessHeap(), 0, sizeof(POINT16)*count );
if(!pt16) return FALSE;
for (i=count;i--;) CONV_POINT32TO16(&(pt[i]),&(pt16[i]));
ret = MFDRV_MetaPoly(dc, META_POLYLINE, pt16, count);
HeapFree( GetProcessHeap(), 0, pt16 );
return ret;
}
/**********************************************************************
* MFDRV_Polygon
*/
BOOL
MFDRV_Polygon( DC *dc, const POINT* pt, INT count )
{
register int i;
LPPOINT16 pt16;
BOOL16 ret;
pt16 = (LPPOINT16) HeapAlloc( GetProcessHeap(), 0, sizeof(POINT16)*count );
if(!pt16) return FALSE;
for (i=count;i--;) CONV_POINT32TO16(&(pt[i]),&(pt16[i]));
ret = MFDRV_MetaPoly(dc, META_POLYGON, pt16, count);
HeapFree( GetProcessHeap(), 0, pt16 );
return ret;
}
/**********************************************************************
* MFDRV_PolyPolygon
*/
BOOL
MFDRV_PolyPolygon( DC *dc, const POINT* pt, const INT* counts, UINT polygons)
{
int i,j;
LPPOINT16 pt16;
const POINT* curpt=pt;
BOOL ret;
for (i=0;i<polygons;i++) {
pt16=(LPPOINT16)HeapAlloc( GetProcessHeap(), 0,
sizeof(POINT16) * counts[i] );
if(!pt16) return FALSE;
for (j=counts[i];j--;) CONV_POINT32TO16(&(curpt[j]),&(pt16[j]));
ret = MFDRV_MetaPoly(dc, META_POLYGON, pt16, counts[i]);
HeapFree( GetProcessHeap(), 0, pt16 );
if (!ret)
return FALSE;
curpt+=counts[i];
}
return TRUE;
}
/**********************************************************************
* MFDRV_ExtFloodFill
*/
BOOL
MFDRV_ExtFloodFill( DC *dc, INT x, INT y, COLORREF color, UINT fillType )
{
return MFDRV_MetaParam4(dc,META_FLOODFILL,x,y,HIWORD(color),
LOWORD(color));
}
/******************************************************************
* MFDRV_CreateRegion
*
* For explanation of the format of the record see MF_Play_MetaCreateRegion in
* objects/metafile.c
*/
static INT16 MFDRV_CreateRegion(DC *dc, HRGN hrgn)
{
DWORD len;
METARECORD *mr;
RGNDATA *rgndata;
RECT *pCurRect, *pEndRect;
WORD Bands = 0, MaxBands = 0;
WORD *Param, *StartBand;
BOOL ret;
len = GetRegionData( hrgn, 0, NULL );
if( !(rgndata = HeapAlloc( GetProcessHeap(), 0, len )) ) {
WARN("Can't alloc rgndata buffer\n");
return -1;
}
GetRegionData( hrgn, len, rgndata );
/* Overestimate of length:
* Assume every rect is a separate band -> 6 WORDs per rect
*/
len = sizeof(METARECORD) + 20 + (rgndata->rdh.nCount * 12);
if( !(mr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, len )) ) {
WARN("Can't alloc METARECORD buffer\n");
HeapFree( GetProcessHeap(), 0, rgndata );
return -1;
}
Param = mr->rdParm + 11;
StartBand = NULL;
pEndRect = (RECT *)rgndata->Buffer + rgndata->rdh.nCount;
for(pCurRect = (RECT *)rgndata->Buffer; pCurRect < pEndRect; pCurRect++)
{
if( StartBand && pCurRect->top == *(StartBand + 1) )
{
*Param++ = pCurRect->left;
*Param++ = pCurRect->right;
}
else
{
if(StartBand)
{
*StartBand = Param - StartBand - 3;
*Param++ = *StartBand;
if(*StartBand > MaxBands)
MaxBands = *StartBand;
Bands++;
}
StartBand = Param++;
*Param++ = pCurRect->top;
*Param++ = pCurRect->bottom;
*Param++ = pCurRect->left;
*Param++ = pCurRect->right;
}
}
len = Param - (WORD *)mr;
mr->rdParm[0] = 0;
mr->rdParm[1] = 6;
mr->rdParm[2] = 0x1234;
mr->rdParm[3] = 0;
mr->rdParm[4] = len * 2;
mr->rdParm[5] = Bands;
mr->rdParm[6] = MaxBands;
mr->rdParm[7] = rgndata->rdh.rcBound.left;
mr->rdParm[8] = rgndata->rdh.rcBound.top;
mr->rdParm[9] = rgndata->rdh.rcBound.right;
mr->rdParm[10] = rgndata->rdh.rcBound.bottom;
mr->rdFunction = META_CREATEREGION;
mr->rdSize = len / 2;
ret = MFDRV_WriteRecord( dc, mr, mr->rdSize * 2 );
HeapFree( GetProcessHeap(), 0, mr );
HeapFree( GetProcessHeap(), 0, rgndata );
if(!ret)
{
WARN("MFDRV_WriteRecord failed\n");
return -1;
}
return MFDRV_AddHandleDC( dc );
}
/**********************************************************************
* MFDRV_PaintRgn
*/
BOOL
MFDRV_PaintRgn( DC *dc, HRGN hrgn )
{
INT16 index;
index = MFDRV_CreateRegion( dc, hrgn );
if(index == -1)
return FALSE;
return MFDRV_MetaParam1( dc, META_PAINTREGION, index );
}
/**********************************************************************
* MFDRV_InvertRgn
*/
BOOL
MFDRV_InvertRgn( DC *dc, HRGN hrgn )
{
INT16 index;
index = MFDRV_CreateRegion( dc, hrgn );
if(index == -1)
return FALSE;
return MFDRV_MetaParam1( dc, META_INVERTREGION, index );
}
/**********************************************************************
* MFDRV_FillRgn
*/
BOOL
MFDRV_FillRgn( DC *dc, HRGN hrgn, HBRUSH hbrush )
{
INT16 iRgn, iBrush;
iRgn = MFDRV_CreateRegion( dc, hrgn );
if(iRgn == -1)
return FALSE;
iBrush = MFDRV_CreateBrushIndirect( dc, hbrush );
if(iBrush == -1)
return FALSE;
return MFDRV_MetaParam2( dc, META_FILLREGION, iRgn, iBrush );
}
/**********************************************************************
* MFDRV_FrameRgn
*/
BOOL
MFDRV_FrameRgn( DC *dc, HRGN hrgn, HBRUSH hbrush, INT x, INT y )
{
INT16 iRgn, iBrush;
iRgn = MFDRV_CreateRegion( dc, hrgn );
if(iRgn == -1)
return FALSE;
iBrush = MFDRV_CreateBrushIndirect( dc, hbrush );
if(iBrush == -1)
return FALSE;
return MFDRV_MetaParam4( dc, META_FRAMEREGION, iRgn, iBrush, x, y );
}
/**********************************************************************
* MFDRV_SetBkColor
*/
COLORREF
MFDRV_SetBkColor( DC *dc, COLORREF color )
{
return MFDRV_MetaParam2(dc, META_SETBKCOLOR, HIWORD(color), LOWORD(color));
}
/**********************************************************************
* MFDRV_SetTextColor
*/
COLORREF
MFDRV_SetTextColor( DC *dc, COLORREF color )
{
return MFDRV_MetaParam2(dc, META_SETTEXTCOLOR, HIWORD(color),
LOWORD(color));
}
/**********************************************************************
* MFDRV_PolyBezier
* Since MetaFiles don't record Beziers and they don't even record
* approximations to them using lines, we need this stub function.
*/
BOOL
MFDRV_PolyBezier( DC *dc, const POINT *pts, DWORD count )
{
return FALSE;
}
/**********************************************************************
* MFDRV_PolyBezierTo
* Since MetaFiles don't record Beziers and they don't even record
* approximations to them using lines, we need this stub function.
*/
BOOL
MFDRV_PolyBezierTo( DC *dc, const POINT *pts, DWORD count )
{
return FALSE;
}