CWE-ou-minkata/Sources/Tools/MaxPlasmaMtls/Layers/plDynamicEnvLayer.h

/*==LICENSE==*

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*==LICENSE==*/
///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  plDynamicEnvLayer - Dynamic EnvironmentMap MAX Layer                     //
//  Cyan, Inc.                                                               //
//                                                                           //
//// Version History //////////////////////////////////////////////////////////
//                                                                           //
//  8.22.2001 mcn - Created.                                                 //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#ifndef _plDynamicEnvLayer_h
#define _plDynamicEnvLayer_h

#include "plPlasmaMAXLayer.h"

class ClassDesc2;
class Interval;
class IMtlParams;
class IParamBlock2;
class TexHandle;
class UVGen;

ClassDesc2* GetDynamicEnvLayerDesc();

//// Class Definition /////////////////////////////////////////////////////////

class plDynamicEnvLayer : public plPlasmaMAXLayer
{
protected:
    // Parameter block
    IParamBlock2    *fBitmapPB;
    UVGen           *fUVGen;

    IMtlParams      *fIMtlParams;

    TexHandle *fTexHandle;
    TimeValue fTexTime;

    Interval        fIValid;
   
    friend class DELBitmapDlgProc;

public:
    // Ref nums
    enum
    {
        kRefUVGen,
        kRefBitmap,
    };

    // Block ID's
    enum
    {
        kBlkBitmap,
    };

    plDynamicEnvLayer();
    ~plDynamicEnvLayer();
    void DeleteThis() { delete this; }      

    //From MtlBase
    ParamDlg    *CreateParamDlg( HWND hwMtlEdit, IMtlParams *imp );
    BOOL        SetDlgThing( ParamDlg* dlg );
    void        Update( TimeValue t, Interval& valid );
    void        Reset();
    Interval    Validity( TimeValue t );
    ULONG       LocalRequirements( int subMtlNum );

    //From Texmap 
    RGBA        EvalColor( ShadeContext& sc );
    float       EvalMono( ShadeContext& sc );
    Point3      EvalNormalPerturb( ShadeContext& sc );

    // For displaying textures in the viewport
    BOOL        SupportTexDisplay() { return TRUE; }
    void        ActivateTexDisplay(BOOL onoff);
    BITMAPINFO  *GetVPDisplayDIB(TimeValue t, TexHandleMaker& thmaker, Interval &valid, BOOL mono=FALSE, int forceW=0, int forceH=0);
    DWORD       GetActiveTexHandle(TimeValue t, TexHandleMaker& thmaker);

    virtual bool    MustBeUnique( void );

protected:
    void IDiscardTexHandle();

public:
    void        GetUVTransform(Matrix3 &uvtrans) { fUVGen->GetUVTransform(uvtrans); }
    int         GetTextureTiling() { return  fUVGen->GetTextureTiling(); }
    int         GetUVWSource() { return fUVGen->GetUVWSource(); }
    virtual int GetMapChannel() { return fUVGen->GetMapChannel(); } // only relevant if above returns UVWSRC_EXPLICIT
    UVGen       *GetTheUVGen() { return fUVGen; }
    
    //TODO: Return anim index to reference index
    int SubNumToRefNum( int subNum ) { return kRefBitmap;   /* Only one sub*/  }
    
    // Loading/Saving
    IOResult Load(ILoad *iload);
    IOResult Save(ISave *isave);

    //From Animatable
    Class_ID    ClassID() { return DYNAMIC_ENV_LAYER_CLASS_ID; }        
    SClass_ID   SuperClassID() { return TEXMAP_CLASS_ID; }
    void        GetClassName( TSTR& s );

    RefTargetHandle Clone( RemapDir &remap );
    RefResult       NotifyRefChanged( Interval changeInt, RefTargetHandle hTarget, PartID& partID,  RefMessage message );

    int             NumSubs();
    Animatable      *SubAnim(int i); 
    TSTR            SubAnimName(int i);

    int             NumRefs();
    RefTargetHandle GetReference( int i );
    void            SetReference( int i, RefTargetHandle rtarg );

    int             NumParamBlocks();   // return number of ParamBlocks in this instance
    IParamBlock2    *GetParamBlock(int i); // return i'th ParamBlock
    IParamBlock2    *GetParamBlockByID(BlockID id); // return id'd ParamBlock

    /// ParamBlock accessors
    enum
    {
        kScalingAny,
        kScalingHalf,
        kScalingNone
    };

    // Param ID's
    enum
    {
        // General params
        kBmpTextureSize,
        kBmpAnchorNode,
        kBmpLastTextureSize,        // Annoying, but necessary to clamp texture sizes to powers of 2
        kBmpRefract
    };

        // Pure virtual accessors for the various bitmap related elements
        virtual Bitmap *GetMaxBitmap(int index = 0) { hsAssert( false, "Function call not valid on this type of layer." ); return nil; }
        virtual PBBitmap *GetPBBitmap( int index = 0 ) { hsAssert( false, "Function call not valid on this type of layer." ); return nil; }
        virtual int     GetNumBitmaps( void ) { return 0; }

    protected:
        virtual void ISetMaxBitmap(Bitmap *bitmap, int index = 0) { hsAssert( false, "Function call not valid on this type of layer." ); }
        virtual void ISetPBBitmap( PBBitmap *pbbm, int index = 0 ){ hsAssert( false, "Function call not valid on this type of layer." ); }
};

#endif // _plDynamicEnvLayer_h