//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//===========================================================================//

#ifndef VMTPANEL_H
#define VMTPANEL_H

#ifdef _WIN32
#pragma once
#endif

#include "matsys_controls/potterywheelpanel.h"

//-----------------------------------------------------------------------------
// Forward declarations
//-----------------------------------------------------------------------------
class IMaterial;
class CMeshBuilder;
class Vector;

namespace vgui {
class ScrollBar;
class IScheme;
}  // namespace vgui

//-----------------------------------------------------------------------------
// Material Viewer Panel
//-----------------------------------------------------------------------------
class CVMTPanel : public CPotteryWheelPanel {
    DECLARE_CLASS_SIMPLE(CVMTPanel, CPotteryWheelPanel);

   public:
    // constructor, destructor
    CVMTPanel(vgui::Panel *pParent, const char *pName);
    virtual ~CVMTPanel();

    // Set the material to draw
    void SetMaterial(IMaterial *pMaterial);

    // Set rendering mode (stretch to full screen, or use actual size)
    void RenderUsingActualSize(bool bEnable);

    // performs the layout
    virtual void PerformLayout();

    virtual void ApplySchemeSettings(vgui::IScheme *pScheme);

   private:
    // paint it stretched to the window size
    void DrawStretchedToPanel(CMeshBuilder &meshBuilder);

    // paint it actual size
    void DrawActualSize(CMeshBuilder &meshBuilder);

    // Draw it on a sphere
    void RenderSphere(const Vector &vCenter, float flRadius, int nTheta,
                      int nPhi);

    // paint it!
    virtual void OnPaint3D();

   private:
    // The material to draw
    IMaterial *m_pMaterial;

    // A texture to use for a lightmap
    CTextureReference m_pLightmapTexture;

    // The default env_cubemap
    CTextureReference m_DefaultEnvCubemap;

    // Are we using actual size or not?
    bool m_bUseActualSize;

    // Scroll bars
    vgui::ScrollBar *m_pHorizontalBar;
    vgui::ScrollBar *m_pVerticalBar;

    // The viewable size
    int m_iViewableWidth;
    int m_iViewableHeight;
};

#endif  // VMTPANEL_H