Revert of Mus Demo: Move definition of WindowTreeData into separate files.

services/ui/demo/window_tree_data.cc

-// Copyright 2017 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 "services/ui/demo/window_tree_data.h"
-
-#include "base/time/time.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "third_party/skia/include/core/SkImageInfo.h"
-#include "third_party/skia/include/core/SkPaint.h"
-#include "third_party/skia/include/core/SkRect.h"
-#include "ui/aura/mus/window_tree_host_mus.h"
-#include "ui/aura/window.h"
-#include "ui/aura_extra/image_window_delegate.h"
-#include "ui/gfx/geometry/rect.h"
-#include "ui/gfx/image/image.h"
-
-namespace ui {
-namespace demo {
-
-namespace {
-
-// Milliseconds between frames.
-const int64_t kFrameDelay = 33;
-
-const SkColor kBgColor = SK_ColorRED;
-const SkColor kFgColor = SK_ColorYELLOW;
-
-void DrawSquare(const gfx::Rect& bounds,
-                double angle,
-                SkCanvas* canvas,
-                unsigned size) {
-  // Create SkRect to draw centered inside the bounds.
-  gfx::Point top_left = bounds.CenterPoint();
-  top_left.Offset(-size / 2, -size / 2);
-  SkRect rect = SkRect::MakeXYWH(top_left.x(), top_left.y(), size, size);
-
-  // Set SkPaint to fill solid color.
-  SkPaint paint;
-  paint.setStyle(SkPaint::kFill_Style);
-  paint.setColor(kFgColor);
-
-  // Rotate the canvas.
-  const gfx::Size canvas_size = bounds.size();
-  if (angle != 0.0) {
-    canvas->translate(SkFloatToScalar(canvas_size.width() * 0.5f),
-                      SkFloatToScalar(canvas_size.height() * 0.5f));
-    canvas->rotate(angle);
-    canvas->translate(-SkFloatToScalar(canvas_size.width() * 0.5f),
-                      -SkFloatToScalar(canvas_size.height() * 0.5f));
-  }
-
-  canvas->drawRect(rect, paint);
-}
-
-}  // namespace
-
-WindowTreeData::WindowTreeData(unsigned square_size)
-    : square_size_(square_size) {}
-
-WindowTreeData::~WindowTreeData() {}
-
-aura::Window* WindowTreeData::bitmap_window() {
-  DCHECK(!window_tree_host_->window()->children().empty());
-  return window_tree_host_->window()->children()[0];
-}
-
-void WindowTreeData::Init(
-    std::unique_ptr<aura::WindowTreeHostMus> window_tree_host) {
-  window_tree_host->InitHost();
-  window_tree_host->Show();
-  // Take ownership of the WTH.
-  window_tree_host_ = std::move(window_tree_host);
-
-  // Initialize the window for the bitmap.
-  window_delegate_ = new aura_extra::ImageWindowDelegate();
-  aura::Window* root_window = window_tree_host_->window();
-  aura::Window* bitmap_window = new aura::Window(window_delegate_);
-  bitmap_window->Init(LAYER_TEXTURED);
-  bitmap_window->SetBounds(gfx::Rect(root_window->bounds().size()));
-  bitmap_window->Show();
-  bitmap_window->SetName("Bitmap");
-  root_window->AddChild(bitmap_window);
-
-  // Draw initial frame and start the timer to regularly draw frames.
-  DrawFrame();
-  timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(kFrameDelay),
-               base::Bind(&WindowTreeData::DrawFrame, base::Unretained(this)));
-}
-
-void WindowTreeData::DrawFrame() {
-  angle_ += 2.0;
-  if (angle_ >= 360.0)
-    angle_ = 0.0;
-
-  const gfx::Rect& bounds = bitmap_window()->bounds();
-
-  // Allocate a bitmap of correct size.
-  SkBitmap bitmap;
-  SkImageInfo image_info = SkImageInfo::MakeN32(bounds.width(), bounds.height(),
-                                                kPremul_SkAlphaType);
-  bitmap.allocPixels(image_info);
-
-  // Draw the rotated square on background in bitmap.
-  SkCanvas canvas(bitmap);
-  canvas.clear(kBgColor);
-  // TODO(kylechar): Add GL drawing instead of software rasterization in future.
-  DrawSquare(bounds, angle_, &canvas, square_size_);
-  canvas.flush();
-
-  gfx::ImageSkiaRep image_skia_rep(bitmap, 1);
-  gfx::ImageSkia image_skia(image_skia_rep);
-  gfx::Image image(image_skia);
-
-  window_delegate_->SetImage(image);
-  bitmap_window()->SchedulePaintInRect(gfx::Rect(bounds.size()));
-}
-
-}  // namespace demo
-}  // namespace ui