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// Copyright (c) 2010 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 REMOTING_CLIENT_CHROMOTING_VIEW_H_
#define REMOTING_CLIENT_CHROMOTING_VIEW_H_
#include "base/ref_counted.h"
namespace remoting {
class HostMessage;
// ChromotingView defines the behavior of an object that draws a view of the
// remote desktop. Its main function is to choose the right decoder and render
// the update stream onto the screen.
class ChromotingView {
public:
virtual ~ChromotingView() {}
// Initialize the common structures for the view.
virtual bool Initialize() = 0;
// Free up resources allocated by this view.
virtual void TearDown() = 0;
// Tells the ChromotingView to paint the current image on the screen.
// TODO(hclam): Add rects as parameter if needed.
virtual void Paint() = 0;
// Fill the screen with one single static color, and ignore updates.
// Useful for debugging.
virtual void SetSolidFill(uint32 color) = 0;
// Removes a previously set solid fill. If no fill was previous set, this
// does nothing.
virtual void UnsetSolidFill() = 0;
// Reposition and resize the viewport into the backing store. If the viewport
// extends past the end of the backing store, it is filled with black.
virtual void SetViewport(int x, int y, int width, int height) = 0;
// Resize the underlying image that contains the host screen buffer.
// This should match the size of the output from the decoder.
//
// TODO(garykac): This handles only 1 screen. We need multi-screen support.
virtual void SetHostScreenSize(int width, int height) = 0;
// Handle the BeginUpdateStream message.
virtual void HandleBeginUpdateStream(HostMessage* msg) = 0;
// Handle the UpdateStreamPacket message.
virtual void HandleUpdateStreamPacket(HostMessage* msg) = 0;
// Handle the EndUpdateStream message.
virtual void HandleEndUpdateStream(HostMessage* msg) = 0;
};
} // namespace remoting
#endif // REMOTING_CLIENT_CHROMOTING_VIEW_H_
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