ui/compositor/canvas_painter.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/compositor/canvas_painter.h"
   6
   7 #include "cc/playback/display_item_list.h"
   8 #include "cc/playback/display_item_list_settings.h"
   9 #include "ui/gfx/canvas.h"
  10
  11 namespace ui {
  12
  13 CanvasPainter::CanvasPainter(gfx::Canvas* canvas, float raster_scale_factor)
  14     : canvas_(canvas),
  15       raster_scale_factor_(raster_scale_factor),
  16       rect_(gfx::ScaleToEnclosedRect(
  17           gfx::Rect(canvas_->sk_canvas()->getBaseLayerSize().width(),
  18                     canvas_->sk_canvas()->getBaseLayerSize().height()),
  19           1.f / raster_scale_factor)),
  20       list_(cc::DisplayItemList::Create(rect_, cc::DisplayItemListSettings())),
  21       context_(list_.get(), raster_scale_factor_, rect_) {
  22 }
  23
  24 CanvasPainter::~CanvasPainter() {
  25   list_->Finalize();
  26   list_->Raster(canvas_->sk_canvas(), nullptr, rect_, raster_scale_factor_);
  27 }
  28
  29 }  // namespace ui