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gdiplus: Changed the way the direction of the endcap is calculated to make LineCapArrowAnchor direction match Windows better.

This commit is contained in:
Evan Stade 2007-07-11 18:08:26 -07:00 committed by Alexandre Julliard
parent f9b0dac9f5
commit 55d70e894c
1 changed files with 11 additions and 4 deletions
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15
dlls/gdiplus/graphics.c
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@ -384,8 +384,13 @@ static GpStatus draw_polybezier(HDC hdc, GpPen *pen, GDIPCONST GpPointF * pt,
if(pen->endcap == LineCapArrowAnchor)
shorten_bezier_amt(ptf, pen->width);
draw_cap(hdc, pen->color, pen->endcap, pen->width, ptf[3].X,
ptf[3].Y, pt[count - 1].X, pt[count - 1].Y);
/* the direction of the line cap is parallel to the direction at the
* end of the bezier (which, if it has been shortened, is not the same
* as the direction from pt[count-2] to pt[count-1]) */
draw_cap(hdc, pen->color, pen->endcap, pen->width,
pt[count - 1].X - (ptf[3].X - ptf[2].X),
pt[count - 1].Y - (ptf[3].Y - ptf[2].Y),
pt[count - 1].X, pt[count - 1].Y);
}
for(i = 0; i < count - 4; i ++){
@ -474,8 +479,10 @@ static GpStatus draw_poly(HDC hdc, GpPen *pen, GDIPCONST GpPointF * pt,
if(pen->endcap == LineCapArrowAnchor)
shorten_bezier_amt(ptf, pen->width);
draw_cap(hdc, pen->color, pen->endcap, pen->width, ptf[3].X,
ptf[3].Y, pt[count - 1].X, pt[count - 1].Y);
draw_cap(hdc, pen->color, pen->endcap, pen->width,
pt[count - 1].X - (ptf[3].X - ptf[2].X),
pt[count - 1].Y - (ptf[3].Y - ptf[2].Y),
pt[count - 1].X, pt[count - 1].Y);
}
for(i = 0; i < 4; i ++){
pti[i + count - 4].x = roundr(ptf[i].X);