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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkSGDraw.h"
#include "SkSGGeometryNode.h"
#include "SkSGInvalidationController.h"
#include "SkSGPaintNode.h"
namespace sksg {
Draw::Draw(sk_sp<GeometryNode> geometry, sk_sp<PaintNode> paint)
: fGeometry(std::move(geometry))
, fPaint(std::move(paint)) {
this->observeInval(fGeometry);
this->observeInval(fPaint);
}
Draw::~Draw() {
this->unobserveInval(fGeometry);
this->unobserveInval(fPaint);
}
void Draw::onRender(SkCanvas* canvas) const {
const auto& paint = fPaint->makePaint();
const auto skipDraw = paint.nothingToDraw() ||
(paint.getStyle() == SkPaint::kStroke_Style && paint.getStrokeWidth() <= 0);
if (!skipDraw) {
fGeometry->draw(canvas, paint);
}
}
SkRect Draw::onRevalidate(InvalidationController* ic, const SkMatrix& ctm) {
SkASSERT(this->hasInval());
auto bounds = fGeometry->revalidate(ic, ctm);
fPaint->revalidate(ic, ctm);
const auto& paint = fPaint->makePaint();
SkASSERT(paint.canComputeFastBounds());
return paint.computeFastBounds(bounds, &bounds);
}
} // namespace sksg
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