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// Copyright 2016 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.
#ifndef ASH_COMPONENTS_TAP_VISUALIZER_TAP_RENDERER_H_
#define ASH_COMPONENTS_TAP_VISUALIZER_TAP_RENDERER_H_
#include <map>
#include <memory>
#include "base/macros.h"
namespace ui {
class PointerEvent;
}
namespace views {
class Widget;
}
namespace tap_visualizer {
class TouchPointView;
// Renders touch points into a widget.
class TapRenderer {
public:
explicit TapRenderer(std::unique_ptr<views::Widget> widget);
~TapRenderer();
// Receives a touch event and draws its touch point.
void HandleTouchEvent(const ui::PointerEvent& event);
private:
friend class TapVisualizerAppTestApi;
// The widget containing the touch point views.
std::unique_ptr<views::Widget> widget_;
// A map of touch ids to TouchPointView.
std::map<int, TouchPointView*> points_;
DISALLOW_COPY_AND_ASSIGN(TapRenderer);
};
} // namespace tap_visualizer
#endif // ASH_COMPONENTS_TAP_VISUALIZER_TAP_RENDERER_H_