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gdiplus: Make pen width depend on world transform.

This commit is contained in:
Evan Stade 2007-07-24 17:18:58 -07:00 committed by Alexandre Julliard
parent 4c424b3c16
commit b7053b74ba
1 changed files with 34 additions and 17 deletions
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51
dlls/gdiplus/graphics.c
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@ -99,10 +99,21 @@ static INT prepare_dc(GpGraphics *graphics, GpPen *pen)
HPEN gdipen;
REAL width;
INT save_state = SaveDC(graphics->hdc);
GpPointF pt[2];
EndPath(graphics->hdc);
width = pen->width * convert_unit(graphics->hdc,
/* Get an estimate for the amount the pen width is affected by the world
* transform. (This is similar to what some of the wine drivers do.) */
pt[0].X = 0.0;
pt[0].Y = 0.0;
pt[1].X = 1.0;
pt[1].Y = 1.0;
GdipTransformMatrixPoints(graphics->worldtrans, pt, 2);
width = sqrt((pt[1].X - pt[0].X) * (pt[1].X - pt[0].X) +
(pt[1].Y - pt[0].Y) * (pt[1].Y - pt[0].Y)) / sqrt(2.0);
width *= pen->width * convert_unit(graphics->hdc,
pen->unit == UnitWorld ? graphics->unit : pen->unit);
gdipen = ExtCreatePen(pen->style, roundr(width), &pen->brush->lb, 0, NULL);
@ -205,31 +216,35 @@ static void calc_curve_bezier_endp(REAL xend, REAL yend, REAL xadj, REAL yadj,
static void draw_cap(GpGraphics *graphics, COLORREF color, GpLineCap cap, REAL size,
const GpCustomLineCap *custom, REAL x1, REAL y1, REAL x2, REAL y2)
{
HGDIOBJ oldbrush, oldpen;
HGDIOBJ oldbrush = NULL, oldpen = NULL;
GpMatrix *matrix = NULL;
HBRUSH brush;
HPEN pen;
HBRUSH brush = NULL;
HPEN pen = NULL;
PointF ptf[4], *custptf = NULL;
POINT pt[4], *custpt = NULL;
BYTE *tp = NULL;
REAL theta, dsmall, dbig, dx, dy = 0.0;
INT i, count;
LOGBRUSH lb;
BOOL customstroke;
if((x1 == x2) && (y1 == y2))
return;
theta = gdiplus_atan2(y2 - y1, x2 - x1);
brush = CreateSolidBrush(color);
lb.lbStyle = BS_SOLID;
lb.lbColor = color;
lb.lbHatch = 0;
pen = ExtCreatePen(PS_GEOMETRIC | PS_SOLID | PS_ENDCAP_FLAT,
((cap == LineCapCustom) && custom && (custom->fill)) ? size : 1,
&lb, 0, NULL);
oldbrush = SelectObject(graphics->hdc, brush);
oldpen = SelectObject(graphics->hdc, pen);
customstroke = (cap == LineCapCustom) && custom && (!custom->fill);
if(!customstroke){
brush = CreateSolidBrush(color);
lb.lbStyle = BS_SOLID;
lb.lbColor = color;
lb.lbHatch = 0;
pen = ExtCreatePen(PS_GEOMETRIC | PS_SOLID | PS_ENDCAP_FLAT |
PS_JOIN_MITER, 1, &lb, 0,
NULL);
oldbrush = SelectObject(graphics->hdc, brush);
oldpen = SelectObject(graphics->hdc, pen);
}
switch(cap){
case LineCapFlat:
@ -382,10 +397,12 @@ custend:
break;
}
SelectObject(graphics->hdc, oldbrush);
SelectObject(graphics->hdc, oldpen);
DeleteObject(brush);
DeleteObject(pen);
if(!customstroke){
SelectObject(graphics->hdc, oldbrush);
SelectObject(graphics->hdc, oldpen);
DeleteObject(brush);
DeleteObject(pen);
}
}
/* Shortens the line by the given percent by changing x2, y2.