//========= Copyright Valve Corporation, All rights reserved. ============//

//

// Purpose:

//

// $Workfile: $

// $Date: $

//

//-----------------------------------------------------------------------------

// $Log: $

//

// $NoKeywords: $

//=============================================================================//

#if !defined( IVIEWPORT_H )

#define IVIEWPORT_H

#ifdef _WIN32

#pragma once

#endif

#include <vgui/VGUI.h>

#include "viewport_panel_names.h"

class KeyValues;

abstract_class IViewPortPanel

{

public:

virtual ~IViewPortPanel() {};

virtual const char *GetName( void ) = 0;// return identifer name

virtual void SetData(KeyValues *data) = 0; // set ViewPortPanel data

virtual void Reset( void ) = 0; // clears internal state, deactivates it

virtual void Update( void ) = 0; // updates all (size, position, content, etc)

virtual bool NeedsUpdate( void ) = 0; // query panel if content needs to be updated

virtual bool HasInputElements( void ) = 0; // true if panel contains elments which accepts input

virtual void ShowPanel( bool state ) = 0; // activate VGUI Frame

// VGUI functions:

virtual vgui::VPANEL GetVPanel( void ) = 0; // returns VGUI panel handle

virtual bool IsVisible() = 0; // true if panel is visible

virtual void SetParent( vgui::VPANEL parent ) = 0;

};

abstract_class IViewPort

{

public:

virtual void UpdateAllPanels( void ) = 0;

virtual void ShowPanel( const char *pName, bool state ) = 0;

virtual void ShowPanel( IViewPortPanel* pPanel, bool state ) = 0;

virtual void ShowBackGround(bool bShow) = 0;

virtual IViewPortPanel* FindPanelByName(const char *szPanelName) = 0;

virtual IViewPortPanel* GetActivePanel( void ) = 0;

virtual void PostMessageToPanel( const char *pName, KeyValues *pKeyValues ) = 0;

};

extern IViewPort *gViewPortInterface;

#endif // IVIEWPORT_H