[SVGDom] Add viewBox support
The main feature is <svg> viewBox and proper viewport support, but the CL
touches a few other things:
* refactor SkSVGRenderContext to auto-restore canvas state, and split the
presentation bits into a separate CoW SkSVGPresentationContext
* introduce SkSVGNode::onPrepareToRender(), as a way for nodes to push their
custom state before the actual onRender() call (instead of relying on
non-virtual SkSVGNode to know about all possible state bits)
* add a "Type" suffix to SVG types, to disambiguate (e.g. SkSVGRectType vs.
SkSVGRect)
R=robertphillips@google.com,stephana@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2222793002
Review-Url: https://codereview.chromium.org/2222793002
diff --git a/experimental/svg/model/SkSVGTransformableNode.h b/experimental/svg/model/SkSVGTransformableNode.h
index c345e85..475fafb 100644
--- a/experimental/svg/model/SkSVGTransformableNode.h
+++ b/experimental/svg/model/SkSVGTransformableNode.h
@@ -20,9 +20,9 @@
protected:
SkSVGTransformableNode(SkSVGTag);
- void onSetAttribute(SkSVGAttribute, const SkSVGValue&) override;
+ bool onPrepareToRender(SkSVGRenderContext*) const override;
- const SkMatrix& onLocalMatrix() const override { return fMatrix; }
+ void onSetAttribute(SkSVGAttribute, const SkSVGValue&) override;
private:
// FIXME: should be sparse