flutter_flutter/flow/transform_layer.cc
Adam Barth 0b629d419f Move //sky/compositor to //flow
Now that the compositor doesn't have any tricky deps, we can make it a
top-level project, which saves a bunch of typing.
2016-01-12 22:39:51 -08:00

30 lines
761 B
C++

// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "flow/transform_layer.h"
namespace flow {
TransformLayer::TransformLayer() {
}
TransformLayer::~TransformLayer() {
}
void TransformLayer::Preroll(PrerollContext* context, const SkMatrix& matrix) {
SkMatrix childMatrix;
childMatrix.setConcat(matrix, transform_);
PrerollChildren(context, childMatrix);
transform_.mapRect(&context->child_paint_bounds);
}
void TransformLayer::Paint(PaintContext::ScopedFrame& frame) {
SkCanvas& canvas = frame.canvas();
SkAutoCanvasRestore save(&canvas, true);
canvas.concat(transform_);
PaintChildren(frame);
}
} // namespace flow