ScreenLayout.h

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// Copyright (c) 2025 Dave R. Smith.
// Malena Framework — Licensed under PolyForm Noncommercial 1.0.0; commercial use requires a paid license. See LICENSE.
 
#pragma once
#ifndef MALENA_SCREEN_LAYOUT_H
#define MALENA_SCREEN_LAYOUT_H
 
#include <Malena/Core/malena_export.h>
#include <Malena/Graphics/Base/Graphic.h>
#include <Malena/Screen/ScreenReceiver.h>
#include <cstddef>
#include <cstdint>
#include <SFML/Graphics/RectangleShape.hpp>
#include <string>
 
namespace ml {

class MALENA_API ScreenLayout : public Graphic<sf::RectangleShape>
{
public:
    enum class Mode { Single, SideBySide, AboveBelow };
 
    ScreenLayout();

    void setMode(Mode mode);
    Mode mode() const;

    void setRatio(float ratio01);
    float ratio() const;

    void setSource(int pane, const std::string& rtspUrl);

    void setFrozen(int pane, bool frozen);

    void pushFrame(int pane, const std::uint8_t* data, std::size_t size);

    void setScaleMode(ScreenReceiverBase::ScaleMode mode);

    void start();
    void stop();
 
    void draw(sf::RenderTarget& target, sf::RenderStates states) const override;
 
private:
    void layoutPanes() const;   // const: invoked from draw() to track live size
 
    mutable ScreenReceiverBase _pane0;
    mutable ScreenReceiverBase _pane1;
    Mode  _mode    = Mode::Single;
    float _ratio   = 0.5f;
    bool  _running = false;
};
 
} // namespace ml
 
#endif // MALENA_SCREEN_LAYOUT_H