Program Listing for File ui_system.h

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#pragma once

#include "system.h"
#include "event_manager.h"
#include "core/ui/custom_render_interface.h"

#include "core/ui/flipbook_decorator.h"

#undef interface
#include "RmlUi/Core/SystemInterface.h"
#define interface __STRUCT__

class CustomSystemInterface : public Rml::SystemInterface
{
    virtual double GetElapsedTime() override;
    virtual bool LogMessage(Rml::Log::Type type, const String& message) override;
};

class UISystem : public System
{
    EventBinder<UISystem> m_Binder;

    Ptr<CustomSystemInterface> m_RmlSystemInterface;
    Ptr<CustomRenderInterface> m_RmlRenderInterface;
    Rml::Context* m_Context;

    Ptr<FlipbookDecoratorInstancer> m_FlipbookInstancer;

    UISystem();

    Variant enableDebugger(const Event* event);
    Variant disableDebugger(const Event* event);

public:
    static UISystem* GetSingleton();

    void loadFont(const String& path);
    Rml::ElementDocument* loadDocument(const String& path);
    void unloadDocument(Rml::ElementDocument*& document);

    bool initialize(const JSON::json& systemData) override;
    void update(float deltaMilliseconds) override;
    void shutDown();

    void setDebugger(bool enabled);
    Rml::Context* getContext() { return m_Context; }

    void draw() override;
};