b36be14c25
The canvas only needs to be saved once, per local SkSVGRenderContext. Add a helper (saveOnce) to implement this optimization. Change-Id: I0c21fa78ad9fd5d3d11de0a29f8441620488d676 Reviewed-on: https://skia-review.googlesource.com/58340 Commit-Queue: Florin Malita <fmalita@chromium.org> Reviewed-by: Robert Phillips <robertphillips@google.com>
44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkCanvas.h"
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#include "SkSVGRenderContext.h"
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#include "SkSVGTransformableNode.h"
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#include "SkSVGValue.h"
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SkSVGTransformableNode::SkSVGTransformableNode(SkSVGTag tag)
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: INHERITED(tag)
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, fTransform(SkMatrix::I()) { }
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bool SkSVGTransformableNode::onPrepareToRender(SkSVGRenderContext* ctx) const {
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if (!fTransform.value().isIdentity()) {
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ctx->saveOnce();
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ctx->canvas()->concat(fTransform);
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}
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return this->INHERITED::onPrepareToRender(ctx);
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}
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void SkSVGTransformableNode::onSetAttribute(SkSVGAttribute attr, const SkSVGValue& v) {
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switch (attr) {
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case SkSVGAttribute::kTransform:
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if (const auto* transform = v.as<SkSVGTransformValue>()) {
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this->setTransform(*transform);
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}
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break;
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default:
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this->INHERITED::onSetAttribute(attr, v);
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break;
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}
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}
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void SkSVGTransformableNode::mapToParent(SkPath* path) const {
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// transforms the path to parent node coordinates.
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path->transform(fTransform.value());
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}
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