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Implement strokeRect with zero-width or zero-height rects

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This commit is contained in:
David Zbarsky 2015-08-04 04:12:49 -04:00
parent 447c991ebb
commit 9fbe33b6f2
6 changed files with 23 additions and 9 deletions
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15
components/canvas/canvas_paint_task.rs
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@ -314,6 +314,21 @@ impl<'a> CanvasPaintTask<'a> {
new_draw_target.stroke_rect(rect, self.state.stroke_style.to_pattern_ref(),
&self.state.stroke_opts, &self.state.draw_options);
});
} else if rect.size.width == 0. || rect.size.height == 0. {
let cap = match self.state.stroke_opts.line_join {
JoinStyle::Round => CapStyle::Round,
_ => CapStyle::Butt
};
let stroke_opts =
StrokeOptions::new(self.state.stroke_opts.line_width,
self.state.stroke_opts.line_join,
cap,
self.state.stroke_opts.miter_limit,
self.state.stroke_opts.mDashPattern);
self.drawtarget.stroke_line(rect.origin, rect.bottom_right(),
self.state.stroke_style.to_pattern_ref(),
&stroke_opts, &self.state.draw_options);
} else {
self.drawtarget.stroke_rect(rect, self.state.stroke_style.to_pattern_ref(),
&self.state.stroke_opts, &self.state.draw_options);