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wine/dlls/wineps.drv/graphics.c

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/*
* PostScript driver graphics functions
*
* Copyright 1998 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <math.h>
#if defined(HAVE_FLOAT_H)
# include <float.h>
#endif
#if !defined(PI)
# define PI M_PI
#endif
#include "psdrv.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
/***********************************************************************
* PSDRV_XWStoDS
*
* Performs a world-to-viewport transformation on the specified width.
*/
INT PSDRV_XWStoDS( PHYSDEV dev, INT width )
{
POINT pt[2];
pt[0].x = 0;
pt[0].y = 0;
pt[1].x = width;
pt[1].y = 0;
LPtoDP( dev->hdc, pt, 2 );
return pt[1].x - pt[0].x;
}
/***********************************************************************
* PSDRV_DrawLine
*/
static void PSDRV_DrawLine( PHYSDEV dev )
{
PSDRV_PDEVICE *physDev = get_psdrv_dev( dev );
if(physDev->pathdepth)
return;
if (physDev->pen.style == PS_NULL)
PSDRV_WriteNewPath(dev);
else
PSDRV_WriteStroke(dev);
}
/***********************************************************************
* PSDRV_LineTo
*/
BOOL PSDRV_LineTo(PHYSDEV dev, INT x, INT y)
{
POINT pt[2];
TRACE("%d %d\n", x, y);
GetCurrentPositionEx( dev->hdc, pt );
pt[1].x = x;
pt[1].y = y;
LPtoDP( dev->hdc, pt, 2 );
PSDRV_SetPen(dev);
PSDRV_SetClip(dev);
PSDRV_WriteMoveTo(dev, pt[0].x, pt[0].y );
PSDRV_WriteLineTo(dev, pt[1].x, pt[1].y );
PSDRV_DrawLine(dev);
PSDRV_ResetClip(dev);
return TRUE;
}
/***********************************************************************
* PSDRV_Rectangle
*/
BOOL PSDRV_Rectangle( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
{
PSDRV_PDEVICE *physDev = get_psdrv_dev( dev );
RECT rect;
TRACE("%d %d - %d %d\n", left, top, right, bottom);
rect.left = left;
rect.top = top;
rect.right = right;
rect.bottom = bottom;
LPtoDP( dev->hdc, (POINT *)&rect, 2 );
/* Windows does something truly hacky here. If we're in passthrough mode
and our rop is R2_NOP, then we output the string below. This is used in
Office 2k when inserting eps files */
if(physDev->job.in_passthrough && !physDev->job.had_passthrough_rect && GetROP2(dev->hdc) == R2_NOP) {
char buf[256];
sprintf(buf, "N %d %d %d %d B\n", rect.right - rect.left, rect.bottom - rect.top, rect.left, rect.top);
write_spool(dev, buf, strlen(buf));
physDev->job.had_passthrough_rect = TRUE;
return TRUE;
}
PSDRV_SetPen(dev);
PSDRV_SetClip(dev);
PSDRV_WriteRectangle(dev, rect.left, rect.top, rect.right - rect.left,
rect.bottom - rect.top );
PSDRV_Brush(dev,0);
PSDRV_DrawLine(dev);
PSDRV_ResetClip(dev);
return TRUE;
}
/***********************************************************************
* PSDRV_RoundRect
*/
BOOL PSDRV_RoundRect( PHYSDEV dev, INT left, INT top, INT right,
INT bottom, INT ell_width, INT ell_height )
{
RECT rect[2];
rect[0].left = left;
rect[0].top = top;
rect[0].right = right;
rect[0].bottom = bottom;
rect[1].left = 0;
rect[1].top = 0;
rect[1].right = ell_width;
rect[1].bottom = ell_height;
LPtoDP( dev->hdc, (POINT *)rect, 4 );
left = rect[0].left;
top = rect[0].top;
right = rect[0].right;
bottom = rect[0].bottom;
if (left > right) { INT tmp = left; left = right; right = tmp; }
if (top > bottom) { INT tmp = top; top = bottom; bottom = tmp; }
ell_width = rect[1].right - rect[1].left;
ell_height = rect[1].bottom - rect[1].top;
if (ell_width > right - left) ell_width = right - left;
if (ell_height > bottom - top) ell_height = bottom - top;
PSDRV_WriteSpool(dev, "%RoundRect\n",11);
PSDRV_SetPen(dev);
PSDRV_SetClip(dev);
PSDRV_WriteMoveTo( dev, left, top + ell_height/2 );
PSDRV_WriteArc( dev, left + ell_width/2, top + ell_height/2, ell_width,
ell_height, 90.0, 180.0);
PSDRV_WriteLineTo( dev, right - ell_width/2, top );
PSDRV_WriteArc( dev, right - ell_width/2, top + ell_height/2, ell_width,
ell_height, 0.0, 90.0);
PSDRV_WriteLineTo( dev, right, bottom - ell_height/2 );
PSDRV_WriteArc( dev, right - ell_width/2, bottom - ell_height/2, ell_width,
ell_height, -90.0, 0.0);
PSDRV_WriteLineTo( dev, right - ell_width/2, bottom);
PSDRV_WriteArc( dev, left + ell_width/2, bottom - ell_height/2, ell_width,
ell_height, 180.0, -90.0);
PSDRV_WriteClosePath( dev );
PSDRV_Brush(dev,0);
PSDRV_DrawLine(dev);
PSDRV_ResetClip(dev);
return TRUE;
}
/***********************************************************************
* PSDRV_DrawArc
*
* Does the work of Arc, Chord and Pie. lines is 0, 1 or 2 respectively.
*/
static BOOL PSDRV_DrawArc( PHYSDEV dev, INT left, INT top,
INT right, INT bottom, INT xstart, INT ystart,
INT xend, INT yend, int lines )
{
INT x, y, h, w;
double start_angle, end_angle, ratio;
RECT rect;
POINT start, end;
rect.left = left;
rect.top = top;
rect.right = right;
rect.bottom = bottom;
LPtoDP( dev->hdc, (POINT *)&rect, 2 );
start.x = xstart;
start.y = ystart;
end.x = xend;
end.y = yend;
LPtoDP( dev->hdc, &start, 1 );
LPtoDP( dev->hdc, &end, 1 );
x = (rect.left + rect.right) / 2;
y = (rect.top + rect.bottom) / 2;
w = rect.right - rect.left;
h = rect.bottom - rect.top;
if(w < 0) w = -w;
if(h < 0) h = -h;
ratio = ((double)w)/h;
/* angle is the angle after the rectangle is transformed to a square and is
measured anticlockwise from the +ve x-axis */
start_angle = atan2((double)(y - start.y) * ratio, (double)(start.x - x));
end_angle = atan2((double)(y - end.y) * ratio, (double)(end.x - x));
start_angle *= 180.0 / PI;
end_angle *= 180.0 / PI;
PSDRV_WriteSpool(dev,"%DrawArc\n", 9);
PSDRV_SetPen(dev);
PSDRV_SetClip(dev);
if(lines == 2) /* pie */
PSDRV_WriteMoveTo(dev, x, y);
else
PSDRV_WriteNewPath( dev );
PSDRV_WriteArc(dev, x, y, w, h, start_angle, end_angle);
if(lines == 1 || lines == 2) { /* chord or pie */
PSDRV_WriteClosePath(dev);
PSDRV_Brush(dev,0);
}
PSDRV_DrawLine(dev);
PSDRV_ResetClip(dev);
return TRUE;
}
/***********************************************************************
* PSDRV_Arc
*/
BOOL PSDRV_Arc( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return PSDRV_DrawArc( dev, left, top, right, bottom, xstart, ystart, xend, yend, 0 );
}
/***********************************************************************
* PSDRV_Chord
*/
BOOL PSDRV_Chord( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return PSDRV_DrawArc( dev, left, top, right, bottom, xstart, ystart, xend, yend, 1 );
}
/***********************************************************************
* PSDRV_Pie
*/
BOOL PSDRV_Pie( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return PSDRV_DrawArc( dev, left, top, right, bottom, xstart, ystart, xend, yend, 2 );
}
/***********************************************************************
* PSDRV_Ellipse
*/
BOOL PSDRV_Ellipse( PHYSDEV dev, INT left, INT top, INT right, INT bottom)
{
INT x, y, w, h;
RECT rect;
TRACE("%d %d - %d %d\n", left, top, right, bottom);
rect.left = left;
rect.top = top;
rect.right = right;
rect.bottom = bottom;
LPtoDP( dev->hdc, (POINT *)&rect, 2 );
x = (rect.left + rect.right) / 2;
y = (rect.top + rect.bottom) / 2;
w = rect.right - rect.left;
h = rect.bottom - rect.top;
PSDRV_WriteSpool(dev, "%Ellipse\n", 9);
PSDRV_SetPen(dev);
PSDRV_SetClip(dev);
PSDRV_WriteNewPath(dev);
PSDRV_WriteArc(dev, x, y, w, h, 0.0, 360.0);
PSDRV_WriteClosePath(dev);
PSDRV_Brush(dev,0);
PSDRV_DrawLine(dev);
PSDRV_ResetClip(dev);
return TRUE;
}
/***********************************************************************
* PSDRV_PolyPolyline
*/
BOOL PSDRV_PolyPolyline( PHYSDEV dev, const POINT* pts, const DWORD* counts, DWORD polylines )
{
DWORD polyline, line, total;
POINT *dev_pts, *pt;
TRACE("\n");
for (polyline = total = 0; polyline < polylines; polyline++) total += counts[polyline];
if (!(dev_pts = HeapAlloc( GetProcessHeap(), 0, total * sizeof(*dev_pts) ))) return FALSE;
memcpy( dev_pts, pts, total * sizeof(*dev_pts) );
LPtoDP( dev->hdc, dev_pts, total );
pt = dev_pts;
PSDRV_WriteSpool(dev, "%PolyPolyline\n",14);
PSDRV_SetPen(dev);
PSDRV_SetClip(dev);
for(polyline = 0; polyline < polylines; polyline++) {
PSDRV_WriteMoveTo(dev, pt->x, pt->y);
pt++;
for(line = 1; line < counts[polyline]; line++, pt++)
PSDRV_WriteLineTo(dev, pt->x, pt->y);
}
HeapFree( GetProcessHeap(), 0, dev_pts );
PSDRV_DrawLine(dev);
PSDRV_ResetClip(dev);
return TRUE;
}
/***********************************************************************
* PSDRV_PolyPolygon
*/
BOOL PSDRV_PolyPolygon( PHYSDEV dev, const POINT* pts, const INT* counts, UINT polygons )
{
DWORD polygon, total;
INT line;
POINT *dev_pts, *pt;
TRACE("\n");
for (polygon = total = 0; polygon < polygons; polygon++) total += counts[polygon];
if (!(dev_pts = HeapAlloc( GetProcessHeap(), 0, total * sizeof(*dev_pts) ))) return FALSE;
memcpy( dev_pts, pts, total * sizeof(*dev_pts) );
LPtoDP( dev->hdc, dev_pts, total );
pt = dev_pts;
PSDRV_WriteSpool(dev, "%PolyPolygon\n",13);
PSDRV_SetPen(dev);
PSDRV_SetClip(dev);
for(polygon = 0; polygon < polygons; polygon++) {
PSDRV_WriteMoveTo(dev, pt->x, pt->y);
pt++;
for(line = 1; line < counts[polygon]; line++, pt++)
PSDRV_WriteLineTo(dev, pt->x, pt->y);
PSDRV_WriteClosePath(dev);
}
HeapFree( GetProcessHeap(), 0, dev_pts );
if(GetPolyFillMode( dev->hdc ) == ALTERNATE)
PSDRV_Brush(dev, 1);
else /* WINDING */
PSDRV_Brush(dev, 0);
PSDRV_DrawLine(dev);
PSDRV_ResetClip(dev);
return TRUE;
}
/***********************************************************************
* PSDRV_PolyBezier
*/
BOOL PSDRV_PolyBezier( PHYSDEV dev, const POINT *pts, DWORD count )
{
DWORD i;
POINT *dev_pts;
TRACE("\n");
if (!(dev_pts = HeapAlloc( GetProcessHeap(), 0, count * sizeof(*dev_pts) ))) return FALSE;
memcpy( dev_pts, pts, count * sizeof(*dev_pts) );
LPtoDP( dev->hdc, dev_pts, count );
PSDRV_WriteSpool(dev, "%PolyBezier\n",12);
PSDRV_SetPen(dev);
PSDRV_SetClip(dev);
PSDRV_WriteMoveTo(dev, dev_pts[0].x, dev_pts[0].y );
for (i = 1; i < count; i += 3) PSDRV_WriteCurveTo( dev, dev_pts + i );
PSDRV_DrawLine(dev);
PSDRV_ResetClip(dev);
HeapFree( GetProcessHeap(), 0, dev_pts );
return TRUE;
}
/***********************************************************************
* PSDRV_PolyBezierTo
*/
BOOL PSDRV_PolyBezierTo( PHYSDEV dev, const POINT *pts, DWORD count )
{
DWORD i;
POINT *dev_pts;
TRACE("\n");
count++; /* add initial position */
if (!(dev_pts = HeapAlloc( GetProcessHeap(), 0, count * sizeof(*dev_pts) ))) return FALSE;
GetCurrentPositionEx( dev->hdc, dev_pts );
memcpy( dev_pts + 1, pts, (count - 1) * sizeof(*dev_pts) );
LPtoDP( dev->hdc, dev_pts, count );
PSDRV_WriteSpool(dev, "%PolyBezier\n",12);
PSDRV_SetPen(dev);
PSDRV_SetClip(dev);
PSDRV_WriteMoveTo(dev, dev_pts[0].x, dev_pts[0].y );
for (i = 1; i < count; i += 3) PSDRV_WriteCurveTo( dev, dev_pts + i );
PSDRV_DrawLine(dev);
PSDRV_ResetClip(dev);
HeapFree( GetProcessHeap(), 0, dev_pts );
return TRUE;
}
/***********************************************************************
* PSDRV_SetPixel
*/
COLORREF PSDRV_SetPixel( PHYSDEV dev, INT x, INT y, COLORREF color )
{
PSCOLOR pscolor;
POINT pt;
pt.x = x;
pt.y = y;
LPtoDP( dev->hdc, &pt, 1 );
PSDRV_SetClip(dev);
/* we bracket the setcolor in gsave/grestore so that we don't trash
the current pen colour */
PSDRV_WriteGSave(dev);
PSDRV_WriteRectangle( dev, pt.x, pt.y, 0, 0 );
PSDRV_CreateColor( dev, &pscolor, color );
PSDRV_WriteSetColor( dev, &pscolor );
PSDRV_WriteFill( dev );
PSDRV_WriteGRestore(dev);
PSDRV_ResetClip(dev);
return color;
}
/***********************************************************************
* PSDRV_PaintRgn
*/
BOOL PSDRV_PaintRgn( PHYSDEV dev, HRGN hrgn )
{
RGNDATA *rgndata = NULL;
RECT *pRect;
DWORD size, i;
TRACE("hdc=%p\n", dev->hdc);
size = GetRegionData(hrgn, 0, NULL);
rgndata = HeapAlloc( GetProcessHeap(), 0, size );
if(!rgndata) {
ERR("Can't allocate buffer\n");
return FALSE;
}
GetRegionData(hrgn, size, rgndata);
if (rgndata->rdh.nCount == 0)
goto end;
LPtoDP(dev->hdc, (POINT*)rgndata->Buffer, rgndata->rdh.nCount * 2);
PSDRV_SetClip(dev);
for(i = 0, pRect = (RECT*)rgndata->Buffer; i < rgndata->rdh.nCount; i++, pRect++)
PSDRV_WriteRectangle(dev, pRect->left, pRect->top, pRect->right - pRect->left, pRect->bottom - pRect->top);
PSDRV_Brush(dev, 0);
PSDRV_WriteNewPath(dev);
PSDRV_ResetClip(dev);
end:
HeapFree(GetProcessHeap(), 0, rgndata);
return TRUE;
}
static BOOL paint_path( PHYSDEV dev, BOOL stroke, BOOL fill )
{
POINT *points;
BYTE *types;
BOOL ret = FALSE;
int i, size = GetPath( dev->hdc, NULL, NULL, 0 );
if (size == -1) return FALSE;
if (!size) return TRUE;
points = HeapAlloc( GetProcessHeap(), 0, size * sizeof(*points) );
types = HeapAlloc( GetProcessHeap(), 0, size * sizeof(*types) );
if (!points || !types) goto done;
if (GetPath( dev->hdc, points, types, size ) == -1) goto done;
LPtoDP( dev->hdc, points, size );
if (stroke) PSDRV_SetPen(dev);
PSDRV_SetClip(dev);
for (i = 0; i < size; i++)
{
switch (types[i])
{
case PT_MOVETO:
PSDRV_WriteMoveTo( dev, points[i].x, points[i].y );
break;
case PT_LINETO:
case PT_LINETO | PT_CLOSEFIGURE:
PSDRV_WriteLineTo( dev, points[i].x, points[i].y );
if (types[i] & PT_CLOSEFIGURE) PSDRV_WriteClosePath( dev );
break;
case PT_BEZIERTO:
case PT_BEZIERTO | PT_CLOSEFIGURE:
PSDRV_WriteCurveTo( dev, points + i );
if (types[i] & PT_CLOSEFIGURE) PSDRV_WriteClosePath( dev );
i += 2;
break;
}
}
if (fill) PSDRV_Brush( dev, GetPolyFillMode(dev->hdc) == ALTERNATE );
if (stroke) PSDRV_DrawLine(dev);
else PSDRV_WriteNewPath(dev);
PSDRV_ResetClip(dev);
done:
HeapFree( GetProcessHeap(), 0, points );
HeapFree( GetProcessHeap(), 0, types );
return ret;
}
/***********************************************************************
* PSDRV_FillPath
*/
BOOL PSDRV_FillPath( PHYSDEV dev )
{
return paint_path( dev, FALSE, TRUE );
}
/***********************************************************************
* PSDRV_StrokeAndFillPath
*/
BOOL PSDRV_StrokeAndFillPath( PHYSDEV dev )
{
return paint_path( dev, TRUE, TRUE );
}
/***********************************************************************
* PSDRV_StrokePath
*/
BOOL PSDRV_StrokePath( PHYSDEV dev )
{
return paint_path( dev, TRUE, FALSE );
}
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