rotationzoommodifier.h

// © Copyright 2010 - 2016 BlackTopp Studios Inc.
/* This file is part of The Mezzanine Engine.

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    GNU General Public License for more details.

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*/
/* The original authors have included a copy of the license specified above in the
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*/
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/*
 -----------------------------------------------------------------------------
 This source file is part of ogre-procedural

 For the latest info, see http://code.google.com/p/ogre-procedural/

 Copyright (c) 2010-2013 Michael Broutin

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
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 */
#ifndef _graphicsproceduralrotationzoommodifier_h
#define _graphicsproceduralrotationzoommodifier_h

#include "Graphics/Procedural/Texture/texturemodifier.h"

#include "vector2.h"

namespace Mezzanine
{
    namespace Graphics
    {
        namespace Procedural
        {
            ///////////////////////////////////////////////////////////////////////////////
            /// @brief A modifier that will apply a rotation to the image and optionally zoom in on it.
            /// @details Edges that are clipped as a result of rotation will be rendered to the otherwise blank corners that are also formed from the rotation.
            ///////////////////////////////////////
            class MEZZ_LIB RotationZoomModifier : public TextureModifier
            {
            protected:
                /// @internal
                /// @brief The center position for the rotation to be applied.
                Vector2 RotationCenter;
                /// @internal
                /// @brief The amount of zoom to apply on both axes.
                Vector2 ZoomFactor;
                /// @internal
                /// @brief The amount of rotation to apply in radians.
                Real Rotation;
            public:
                /// @brief Blank constructor.
                RotationZoomModifier();
                /// @brief Class destructor.
                virtual ~RotationZoomModifier();

                ///////////////////////////////////////////////////////////////////////////////
                // Utility

                /// @copydoc TextureModifier::Modify(TextureBuffer&)
                virtual void Modify(TextureBuffer& Buffer);
                /// @copydoc TextureModifier::GetName() const
                virtual String GetName() const;

                ///////////////////////////////////////////////////////////////////////////////
                // Configuration

                /// @brief Sets the relative position on the texture the rotation is to occur around.
                /// @param Center The center position for the rotation to be applied in relative coordinates[0.0-1.0].  Initial Value: 0.5,0.5.
                /// @return Returns a reference to this.
                RotationZoomModifier& SetRotationCenter(const Vector2& Center);
                /// @brief Sets the relative X position on the texture the rotation is to occur around.
                /// @param X The center position for the rotation to be applied on the X axis in relative coordinates[0.0-1.0].  Initial Value: 0.5.
                /// @return Returns a reference to this.
                RotationZoomModifier& SetRotationCenterX(const Real X);
                /// @brief Sets the relative Y position on the texture the rotation is to occur around.
                /// @param Y The center position for the rotation to be applied on the Y axis in relative coordinates[0.0-1.0].  Initial Value: 0.5.
                /// @return Returns a reference to this.
                RotationZoomModifier& SetRotationCenterY(const Real Y);
                /// @brief Sets the zoom to be applied to the texture after rotation.
                /// @param Zoom The amount of zoom to apply on both axes.  Initial Value: 1.0,1.0.
                /// @return Returns a reference to this.
                RotationZoomModifier& SetZoomFactor(const Vector2& Zoom);
                /// @brief Sets the zoom to be applied to the texture on the X axis after rotation.
                /// @param X The amount of zoom to apply on the X axis.  Initial Value: 1.0.
                /// @return Returns a reference to this.
                RotationZoomModifier& SetZoomFactorX(const Real X);
                /// @brief Sets the zoom to be applied to the texture on the Y axis after rotation.
                /// @param Y The amount of zoom to apply on the Y axis.  Initial Value: 1.0.
                /// @return Returns a reference to this.
                RotationZoomModifier& SetZoomFactorY(const Real Y);
                /// @brief Sets the rotation to be applied.
                /// @param Rot The amount of rotation to apply in radians.  Initial Value: 0.0.
                /// @return Returns a reference to this.
                RotationZoomModifier& SetRotation(const Real Rot);
            };//RotationZoomModifier
        }//Procedural
    }//Graphics
}//Mezzanine

#endif