#ifndef KOTGUI_H
#define KOTGUI_H

#include "../materialsystem/imaterialsystem.h"
#include "../materialsystem/igamewindow.h"
#include "tier2/iappsystem.h"

abstract_class IRenderFont
{
public:
	virtual IImage *GetAtlas();
	virtual bool IsLetterPresent( uint32_t letter );
	virtual float GetLetterX( uint32_t letter );
	virtual float GetLetterY( uint32_t letter );
	virtual float GetWidthX( uint32_t letter );
	virtual float GetWidthY( uint32_t letter );
};

struct Alignment_t
{
	int iX;
	int iY;
	float fX;
	float fY;
};

struct Color3
{
	float R;
	float G;
	float B;
};

struct Color4
{
	float R;
	float G;
	float B;
};


enum EKotUIShader
{
	k_eKotGUI_Text,
	k_eKotGUI_Widget,
};

abstract_class IKotUIManager: public IAppSystem2
{
public:
	virtual void BeginDrawing() = 0;
	virtual void EndDrawing() = 0;


	virtual void DrawText(
		Alignment_t position,
		Alignment_t offset,
		float fRotation, 

		Color4 color,
		
		uint32_t *pText,
		uint32_t uSize,
		IRenderFont *pFont,
		float fTextSize
	) = 0;
};
IKotUIManager *KotUIManager();

#define KOT_UI_INTEFACE_VERSION "KotUI001"

#endif