| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkCanvas.h" |
| #include "SkSVGRenderContext.h" |
| #include "SkSVGTransformableNode.h" |
| #include "SkSVGValue.h" |
| |
| SkSVGTransformableNode::SkSVGTransformableNode(SkSVGTag tag) |
| : INHERITED(tag) |
| , fTransform(SkMatrix::I()) { } |
| |
| |
| bool SkSVGTransformableNode::onPrepareToRender(SkSVGRenderContext* ctx) const { |
| if (!fTransform.value().isIdentity()) { |
| ctx->canvas()->save(); |
| ctx->canvas()->concat(fTransform); |
| } |
| |
| return this->INHERITED::onPrepareToRender(ctx); |
| } |
| |
| void SkSVGTransformableNode::onSetAttribute(SkSVGAttribute attr, const SkSVGValue& v) { |
| switch (attr) { |
| case SkSVGAttribute::kTransform: |
| if (const auto* transform = v.as<SkSVGTransformValue>()) { |
| this->setTransform(*transform); |
| } |
| break; |
| default: |
| this->INHERITED::onSetAttribute(attr, v); |
| break; |
| } |
| } |
| |
| void SkSVGTransformableNode::mapToParent(SkPath* path) const { |
| if (fTransform.value().isIdentity()) { |
| return; |
| } |
| |
| SkMatrix inv; |
| if (!fTransform.value().invert(&inv)) { |
| return; |
| } |
| |
| path->transform(inv); |
| } |