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// Copyright (c) 2011 The Native Client 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 EXAMPLES_PONG_VIEW_H_
#define EXAMPLES_PONG_VIEW_H_
#include "ppapi/cpp/rect.h"
namespace pp {
class Graphics2D;
class ImageData;
class Instance;
class KeyboardInputEvent;
class Rect;
class Size;
} // namespace pp
namespace pong {
class View {
public:
explicit View(pp::Instance* instance);
~View();
const uint32_t& last_key_code() const {
return last_key_code_;
}
void set_left_paddle_rect(const pp::Rect& left_paddle_rect) {
left_paddle_rect_ = left_paddle_rect;
}
void set_right_paddle_rect(const pp::Rect& right_paddle_rect) {
right_paddle_rect_ = right_paddle_rect;
}
void set_ball_rect(const pp::Rect& ball_rect) {
ball_rect_ = ball_rect;
}
void set_flush_pending(bool flush_pending) {
flush_pending_ = flush_pending;
}
pp::Size GetSize() const;
bool KeyDown(const pp::KeyboardInputEvent& key);
bool KeyUp(const pp::KeyboardInputEvent& key);
void Draw();
void UpdateView(const pp::Rect& position,
const pp::Rect& clip,
pp::Instance* instance);
private:
pp::Instance* const instance_; // weak
// Create and initialize the 2D context used for drawing.
void CreateContext(const pp::Size& size, pp::Instance* instance);
// Destroy the 2D drawing context.
void DestroyContext();
// Push the pixels to the browser, then attempt to flush the 2D context. If
// there is a pending flush on the 2D context, then update the pixels only
// and do not flush.
void FlushPixelBuffer();
bool IsContextValid() const;
uint32_t last_key_code_;
// Geometry for drawing
pp::Rect left_paddle_rect_;
pp::Rect right_paddle_rect_;
pp::Rect ball_rect_;
// Drawing stuff
bool flush_pending_;
pp::Graphics2D* graphics_2d_context_;
pp::ImageData* pixel_buffer_;
};
} // namespace pong
#endif // EXAMPLES_PONG_VIEW_H_
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