Virtual.h

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/****
 * Virtual.h
 *
 * Copyright 2021 mikee47 <mike@sillyhouse.net>
 *
 * This file is part of the Sming-Graphics Library
 *
 * This library is free software: you can redistribute it and/or modify it under the terms of the
 * GNU General Public License as published by the Free Software Foundation, version 3 or later.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this library.
 * If not, see <https://www.gnu.org/licenses/>.
 *
 * @author: May 2021 - mikee47 <mike@sillyhouse.net>
 *
 ****/
 
#pragma once
 
#include <Graphics/Device.h>
#include <Graphics/AddressWindow.h>
#include <Graphics/AbstractDisplay.h>
 
class CSocket;
 
namespace Graphics
{
namespace Display
{
class VirtualSurface;
 
class Virtual : public AbstractDisplay
{
public:
    enum class Mode {
        Normal, 
        Debug,  
    };
 
    using TouchCallback = Delegate<void(const void* buffer, size_t len)>;
 
    Virtual();
    ~Virtual();
 
    bool begin(uint16_t width = 240, uint16_t height = 320);
    bool begin(const String& ipaddr, uint16_t port, uint16_t width = 240, uint16_t height = 320);
 
    void setMode(Mode mode)
    {
        this->mode = mode;
    }
 
    Mode getMode() const
    {
        return mode;
    }
 
    bool setDisplaySize(uint16_t width, uint16_t height, Orientation orientation);
 
    /* Device */
 
    String getName() const override
    {
        return F("Virtual Screen");
    }
    Size getNativeSize() const override
    {
        return nativeSize;
    }
    bool setOrientation(Orientation orientation) override;
 
    /* RenderTarget */
 
    Size getSize() const override
    {
        return rotate(nativeSize, orientation);
    }
 
    PixelFormat getPixelFormat() const override
    {
        return PixelFormat::BGR24;
    }
 
    bool setScrollMargins(uint16_t top, uint16_t bottom) override;
    bool scroll(int16_t y) override;
 
    Surface* createSurface(size_t bufferSize = 0) override;
 
    void onTouch(TouchCallback callback)
    {
        touchCallback = callback;
    }
 
private:
    class NetworkThread;
    friend NetworkThread;
    friend VirtualSurface;
 
    struct ScrollMargins {
        uint16_t top;
        uint16_t bottom;
    };
 
    bool sizeChanged();
 
    void handleTouch(const void* buffer, size_t length)
    {
        if(touchCallback) {
            touchCallback(buffer, length);
        }
    }
 
    std::unique_ptr<NetworkThread> thread;
    Size nativeSize{};
    AddressWindow addrWindow{};
    ScrollMargins scrollMargins;
    TouchCallback touchCallback;
    Mode mode;
};
 
} // namespace Display
} // namespace Graphics