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de2D_priv.hpp

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///////////////////////////////////////////////////////////////////////////////
/// @file de2D_priv.hpp
///
/// @brief private header for de2D library
///
/// @author Assassin
///
/// This file is the intellectual property of Novus Delta, LLC.. Usage of the
/// contents of this file is subject to the Destiny3D Member License which
/// can be found at http://www.destiny3d.com.  Any other usage is prohibited.
///
/// This file is distributed "AS IS" without warranty of any kind.  Novus
/// Delta, LLC. does not guarantee the fitness of the contents of this file
/// for any particular purpose.
///
/// Copyright (C) 2001-2003 Novus Delta, LLC. All Rights Reserved.
///
/// <hr>
///                                 Change History
/// <hr>
///
/// @date May 2002
/// @author Assassin
/// @remarks Creation
///
///////////////////////////////////////////////////////////////////////////////

#ifndef DE2D_PRIV_HPP
#define DE2D_PRIV_HPP

#include "de2D.hpp"
#include "deList.hpp"
#include "deRenderStates.hpp"

class de2DObject : public Ide2DObject, public deRefCountBase
{
protected:
    virtual ~de2DObject();
public:
    de2DObject( IdeVertexBuffer * VBuffer, 
        IdeRenderTexture * Texture, deFloat Depth, 
        deBoolean ExpireNow = DE_FALSE);
    
    IdeVertexBuffer * GetVBuffer() const;
    IdeRenderTexture* GetTexture() const;
    deBoolean HasExpired() const;
    deFloat GetDepth() const;

    void MakeExpire();
    deBoolean SetDepth(deFloat Depth);
    
    deBoolean Move(deVertex DeltaXY);
    deBoolean Update(deDouble DeltaTime);
    
private:
    IdeVertexBuffer *   m_VBuffer;
    IdeRenderTexture *  m_Texture;
    deBoolean           m_Expire;
    IdeDriver *         m_Driver;
    deFloat             m_Depth;
    
protected:
    virtual deBoolean UpdateObject(deDouble DeltaTime);
    void SetVBuffer(IdeVertexBuffer * VBuffer);
    void SetTexture(IdeRenderTexture * Texture);
};

class de2DOverlay : public de2DObject
{
public:
    de2DOverlay(deRect *ScreenRect, deFloatRect *TexCoords,
        IdeRenderTexture * Texture, deFloat Depth = 10.0f, 
        deARGB color = 0xFFFFFFFF, deDouble FadePerSecond = 0.0);
    
protected:
    virtual ~de2DOverlay();
    
    virtual deBoolean UpdateObject(deDouble DeltaTime);
    
    deDouble m_Alpha, m_FadePerSecond;
};

class de2DCorona : public de2DOverlay
{
public:
    de2DCorona( deRect *SizeRect, deFloatRect *TexCoords,
        IdeRenderTexture * Texture, IdeCamera * ScreenCamera,
        deFloat Depth = 10.0f, deARGB color = 0xFFFFFFFF);
    
    void SetPosition(deVec3d WorldPosition);
    
protected:
    virtual ~de2DCorona();
    
    virtual deBoolean UpdateObject(deDouble DeltaTime);
    
    deVec3d m_WorldPosition;
    deVertex m_ScreenPosition;
    deBoolean m_OnScreen;
    IdeCamera * m_Camera;
};

class de2DLine : public de2DObject
{
public:
    de2DLine(   deVec3d PointList[], long NumPoints,
        deARGB color = 0xFFFFFFFF,
        deDouble FadePerSecond = 0.0, deFloat Depth = 10.0f);
    de2DLine(   deVec3d Start, deVec3d End, 
        deARGB color = 0xFFFFFFFF,
        deDouble FadePerSecond = 0.0, deFloat Depth = 10.0f);
    de2DLine(   deRect & LineRect,
        deARGB color = 0xFFFFFFFF,
        deDouble FadePerSecond = 0.0, deFloat Depth = 10.0f);
protected:
    virtual ~de2DLine();
    
    virtual deBoolean UpdateObject(deDouble DeltaTime);
    
    deDouble m_Alpha, m_FadePerSecond;
};

class de2DCollection : public Ide2DCollection, public deRefCountBase
{
protected:
    virtual ~de2DCollection();
public:
    de2DCollection();

    void        SetParent(Ide2DCollection* ParentCollection);
    
    const deRect&   GetRect() const;
    void        SetRect(deRect & rect);

    void        SetBGColor(deARGB color);
    deARGB      GetBGColor();

    void        SetEnabled(deBoolean Enable);
    deBoolean   IsEnabled() const;
    
    void        GetScrollValue(deVec3d & scroll) const;
    void        SetScrollValue(const deVec3d & scroll);
    
    deBoolean   AddObject(Ide2DObject * object);
    deBoolean   RemoveObject(Ide2DObject * object);
    deBoolean   AdjustObjectDepth(Ide2DObject * object, deFloat Depth);
    
    deBoolean   AddSubCollection(Ide2DCollection * collection);
    deBoolean   RemoveSubCollection(Ide2DCollection * collection);
    deFloat     GetDepth() const;
    deBoolean   SetDepth(deFloat Depth);

    deBoolean   Render( IdeDriver * Driver, deDouble DeltaTime, 
                        IdeRenderTexture *NullTex, IdeRender::deRenderStats * RenderStats,
                        deBoolean DoOcclusion);
    
    void        DestroyAllObjects(deBoolean SubCollectionsAlso);
    
    static IdeVertexBuffer*     s_CompositeFor2D;
private:
    static long                 s_NumCollections;
    static IdeVertexBuffer*     s_BackdropQuad;
    static IdeRenderTexture*    s_BackdropTexture;
    
    // for storing things in our list
    struct de2DObjectUnion
    {
        union
        {
            Ide2DObject     *Object;
            Ide2DCollection *Collection;
        };
        deBoolean IsObject;
    };
    deBoolean   AddItem(const de2DObjectUnion & NewItem);
    deBoolean   Set2DViewport(short FullWidth, short FullHeight, const deRect & SubRect, IdeDriver * pDriver);
    deBoolean   FillBGColor(IdeDriver * pDriver, const deRect & Rect, const deVec3d & Scroll, deARGB BGColor, IdeRenderTexture* &PrevTexture);

    // used in the Render function
    struct CollectionState_t
    {
        deTList <de2DObjectUnion>   *List;
        void                        *Entry;
        deRect                      ViewRect;
        deVec3d                     Scroll;
        deARGB                      BGColor;
    };
    struct RenderStateValue_t
    {
        IdeDriver::RenderState      State;
        long                        Value;
    };
    
    deTList < de2DObjectUnion > m_ChildList;

    // the rect we clip to
    deRect              m_ClipRect;
    deVec3d             m_Scroll;

    Ide2DCollection*    m_pParent;
    deFloat             m_Depth;
    deARGB              m_BGColor;
    deBoolean           m_Enabled;
    
};

#endif

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