3ba3fa72ae
... to avoid having too many Node friends. TBR= Change-Id: I8f8ff570d94ea48017935066a3d51cd8265ec120 Reviewed-on: https://skia-review.googlesource.com/97980 Reviewed-by: Florin Malita <fmalita@chromium.org> Commit-Queue: Florin Malita <fmalita@chromium.org>
71 lines
1.7 KiB
C++
71 lines
1.7 KiB
C++
/*
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* Copyright 2017 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 "SkSGTransform.h"
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#include "SkCanvas.h"
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namespace sksg {
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// Matrix nodes don't generate damage on their own, but via aggregation ancestor Transform nodes.
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Matrix::Matrix(const SkMatrix& m, sk_sp<Matrix> parent)
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: INHERITED(kBubbleDamage_Trait)
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, fParent(std::move(parent))
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, fLocalMatrix(m) {
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if (fParent) {
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this->observeInval(fParent);
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}
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}
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Matrix::~Matrix() {
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if (fParent) {
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this->unobserveInval(fParent);
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}
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}
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SkRect Matrix::onRevalidate(InvalidationController* ic, const SkMatrix& ctm) {
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fTotalMatrix = fLocalMatrix;
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if (fParent) {
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fParent->revalidate(ic, ctm);
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fTotalMatrix.postConcat(fParent->getTotalMatrix());
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}
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return SkRect::MakeEmpty();
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}
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Transform::Transform(sk_sp<RenderNode> child, sk_sp<Matrix> matrix)
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: INHERITED(std::move(child))
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, fMatrix(std::move(matrix)) {
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this->observeInval(fMatrix);
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}
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Transform::~Transform() {
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this->unobserveInval(fMatrix);
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}
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void Transform::onRender(SkCanvas* canvas) const {
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const auto& m = fMatrix->getTotalMatrix();
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SkAutoCanvasRestore acr(canvas, !m.isIdentity());
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canvas->concat(m);
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this->INHERITED::onRender(canvas);
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}
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SkRect Transform::onRevalidate(InvalidationController* ic, const SkMatrix& ctm) {
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SkASSERT(this->hasInval());
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// We don't care about matrix reval results.
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fMatrix->revalidate(ic, ctm);
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const auto& m = fMatrix->getTotalMatrix();
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auto bounds = this->INHERITED::onRevalidate(ic, SkMatrix::Concat(ctm, m));
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m.mapRect(&bounds);
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return bounds;
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}
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} // namespace sksg
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