TAPsOpenGLBaseViewManager.hpp

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/******************************************************************************
TAPsOpenGLBaseViewManager.hpp

Declares the pure virtual interface for OpenGL View Manager

SUKITTI PUNAK   (07/20/2005)
UPDATE          (07/30/2005)
******************************************************************************/
#ifndef TAPs_OPENGL_BASE_VIEW_MANAGER_HPP
#define TAPs_OPENGL_BASE_VIEW_MANAGER_HPP

#include "../../Core/TAPsLib.hpp"

BEGIN_NAMESPACE_TAPs__OpenGL
//=============================================================================
template <typename T>
class OpenGLBaseViewManager {
public:
    //----------------------------------------------------------------
    // Default Constructor and Destructor
    OpenGLBaseViewManager ();
    virtual ~OpenGLBaseViewManager ();
    //----------------------------------------------------------------
    enum ModifyViewType {
        MODIFY_VIEW_TRANSLATE,
        MODIFY_VIEW_ROTATE,
        MODIFY_VIEW_SCALE,
        INVALID_MODIFY_VIEW
    };
    //----------------------------------------------------------------
    // Pure Virtual Fns
    virtual void Setup () = 0;
    virtual void Cleanup () = 0;
    virtual void ReshapeView ( int width, int height ) = 0;
    virtual void UpdateView () = 0;
    virtual int GetWindowWidth () const = 0;
    virtual int GetWindowHeight () const = 0;
    virtual bool IsModifyingView () const = 0;
    virtual void StartModifyView ( ModifyViewType type, int x, int y ) = 0;
    virtual void StopModifyView () = 0;
    virtual void ModifyView ( int x, int y ) = 0;
    virtual bool ToScreen ( const Vector3<T> &obj, Vector3<T> &win ) const = 0;
    virtual bool FromScreen ( const Vector3<T> &win, Vector3<T> &obj ) const = 0;
    virtual T GetWindowToWorldScale () const = 0;
    virtual const Matrix4x4<T> &GetViewTransform () const = 0;
    virtual const Matrix4x4<T> &GetProjTransform () const = 0;
    //----------------------------------------------------------------
    // Get/Set Fns
    inline void SetClearColor ( const T color[4] );
    inline void SetClearColor ( T r, T g, T b, T a );
private:
    //================================================================
    // Data Members
    //----------------------------------------------------------------
}; // CLASS END: OpenGLBaseViewManager *****************************************
//=============================================================================
END_NAMESPACE_TAPs__OpenGL
//-----------------------------------------------------------------------------
// Include definition if TAPs_USE_EXPORT is not defined
//#if !defined( TAPs_USE_EXPORT )
    #include "TAPsOpenGLBaseViewManager.cpp"
//#endif
//-----------------------------------------------------------------------------
#endif
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