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Add opacity support to the point symbolizer - taken from r743 which

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added the same support to the agg renderer.
This commit is contained in:
Tom Hughes 2008-10-31 00:51:41 +00:00
parent 9d6a7f1075
commit 9408a41a5c
1 changed files with 3 additions and 3 deletions
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6
src/cairo_renderer.cpp
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@ -332,7 +332,7 @@ namespace mapnik
context_->set_source(pattern.pattern());
}
void add_image(double x, double y, ImageData32 & data)
void add_image(double x, double y, ImageData32 & data, double opacity = 1.0)
{
cairo_pattern pattern(data);
@ -340,7 +340,7 @@ namespace mapnik
context_->save();
context_->set_source(pattern.pattern());
context_->paint();
context_->paint_with_alpha(opacity);
context_->restore();
}
@ -747,7 +747,7 @@ namespace mapnik
int px = int(floor(x - 0.5 * w));
int py = int(floor(y - 0.5 * h));
context.add_image(px, py, *data);
context.add_image(px, py, *data, sym.get_opacity());
detector_.insert(label_ext);
}
}