//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: This is a panel which draws a viewcone
//
// $Revision: $
// $NoKeywords: $
//=============================================================================//

#ifndef VIEWCONEIMAGE_H
#define VIEWCONEIMAGE_H

#include "shareddefs.h"
#include "vgui_bitmapimage.h"

namespace vgui {
class Panel;
}

class C_BaseEntity;
class KeyValues;

//-----------------------------------------------------------------------------
// A bitmap that renders a view cone based on angles
//-----------------------------------------------------------------------------
class CViewConeImage {
   public:
    // initialization
    bool Init(vgui::Panel* pParent, KeyValues* pInitData);

    // Paint the sucka
    void Paint(float yaw);

    void SetColor(int r, int g, int b);

   private:
    BitmapImage m_Image;
};

//-----------------------------------------------------------------------------
// Helper method to initialize a view cone image from KeyValues data..
// KeyValues contains the bitmap data, pSectionName, if it exists,
// indicates which subsection of pInitData should be looked at to get at the
// image data. The final argument is the bitmap image to initialize.
// The function returns true if it succeeded.
//
// NOTE: This function looks for the key values 'material' and 'color'
// and uses them to set up the material + modulation color of the image
//-----------------------------------------------------------------------------
bool InitializeViewConeImage(KeyValues* pInitData, const char* pSectionName,
                             vgui::Panel* pParent,
                             CViewConeImage* pViewConeImage);

#endif  //  VIEWCONEIMAGE_H