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quartz: fix stroking with unbounded operators

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Self-intersecting strokes were drawn incorrectly when an unbounded
operator was used, since the fixup operation also cleared the
intersection.

Fixes clip-stroke-unbounded.
This commit is contained in:
Andrea Canciani 2010-07-28 19:33:53 +02:00
parent 8f38d2aa29
commit bdeade14ea
1 changed files with 9 additions and 7 deletions
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16
src/cairo-quartz-surface.c
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@ -2408,21 +2408,23 @@ _cairo_quartz_surface_stroke_cg (void *abstract_surface,
CGContextRestoreGState (surface->cgContext);
if (path_for_unbounded) {
CGContextSaveGState (surface->cgContext);
unbounded_op_data_t ub;
ub.op = UNBOUNDED_STROKE_FILL;
ub.u.stroke_fill.fill_rule = CAIRO_FILL_RULE_WINDING;
CGContextBeginPath (surface->cgContext);
CGContextAddPath (surface->cgContext, path_for_unbounded);
CGPathRelease (path_for_unbounded);
CGContextSaveGState (surface->cgContext);
CGContextConcatCTM (surface->cgContext, strokeTransform);
CGContextReplacePathWithStrokedPath (surface->cgContext);
CGContextAddRect (surface->cgContext, CGContextGetClipBoundingBox (surface->cgContext));
CGContextSetRGBFillColor (surface->cgContext, 0., 0., 0., 0.);
CGContextEOFillPath (surface->cgContext);
CGContextRestoreGState (surface->cgContext);
ub.u.stroke_fill.cgPath = CGContextCopyPathPtr (surface->cgContext);
_cairo_quartz_fixup_unbounded_operation (surface, &ub, antialias);
CGPathRelease (ub.u.stroke_fill.cgPath);
}
ND((stderr, "-- stroke\n"));