assimp.assimp/tools/assimp_view/Background.h

/*
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Open Asset Import Library (assimp)
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  following disclaimer.

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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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*/
#pragma once

namespace AssimpView
{

    class CBackgroundPainter
    {
        CBackgroundPainter()
            :
            clrColor( D3DCOLOR_ARGB( 0xFF, 100, 100, 100 ) ),
            pcTexture( NULL ),
            piSkyBoxEffect( NULL ),
            eMode( SIMPLE_COLOR )
        {}

    public:

        // Supported background draw modi
        enum MODE { SIMPLE_COLOR, TEXTURE_2D, TEXTURE_CUBE };

        // Singleton accessors
        static CBackgroundPainter s_cInstance;
        inline static CBackgroundPainter& Instance()
        {
            return s_cInstance;
        }

        // set the current background color
        // (this removes any textures loaded)
        void SetColor( D3DCOLOR p_clrNew );

        // Setup a cubemap/a 2d texture as background
        void SetCubeMapBG( const char* p_szPath );
        void SetTextureBG( const char* p_szPath );

        // Called by the render loop
        void OnPreRender();
        void OnPostRender();

        // Release any native resources associated with the instance
        void ReleaseNativeResource();

        // Recreate any native resources associated with the instance
        void RecreateNativeResource();

        // Rotate the skybox
        void RotateSB( const aiMatrix4x4* pm );

        // Reset the state of the skybox
        void ResetSB();

        inline MODE GetMode() const
        {
            return this->eMode;
        }

        inline IDirect3DBaseTexture9* GetTexture()
        {
            return this->pcTexture;
        }

        inline ID3DXBaseEffect* GetEffect()
        {
            return this->piSkyBoxEffect;
        }

    private:

        void RemoveSBDeps();

        // current background color
        D3DCOLOR clrColor;

        // current background texture
        IDirect3DBaseTexture9* pcTexture;
        ID3DXEffect* piSkyBoxEffect;

        // current background mode
        MODE eMode;

        // path to the texture
        std::string szPath;

        // transformation matrix for the skybox
        aiMatrix4x4 mMatrix;
    };

}