gls_clipping_group.h

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/*! \file
  \brief  The disti::GlsClippingGroup class.

  \par Copyright Information

  Copyright (c) 2017 by The DiSTI Corporation.<br>
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  NO WARRANTY. THE SOFTWARE IS PROVIDED "AS-IS," WITHOUT WARRANTY OF ANY KIND,
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  LIMITATION OF LIABILITY. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW,
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*/

#ifndef INCLUDED_GLS_CLIPPING_GROUP_H
#define INCLUDED_GLS_CLIPPING_GROUP_H

#include "group.h"

//////////////////// Provides support for creating DLLs ////////////////////////
#if( defined( GLSGEN_EXPORT_GLSCLIPPINGGROUP ) || defined( GLSGEN_IMPORT_GLSCLIPPINGGROUP ) || defined( GLS_EXPORT_GENERATED ) || defined( GLS_IMPORT_GENERATED ) ) \
    && defined( _MSC_VER )
#    if defined( GLSGEN_EXPORT_GLSCLIPPINGGROUP ) || defined( GLS_EXPORT_GENERATED )
#        define GLSGEN_GLSCLIPPINGGROUP_EXPORT __declspec( dllexport )
#    else
#        define GLSGEN_GLSCLIPPINGGROUP_EXPORT __declspec( dllimport )
#    endif
#else
#    define GLSGEN_GLSCLIPPINGGROUP_EXPORT
#endif
///////////////////////////////////////////////////////////////////////////////

#define LIB_BASE_NAME "gls_clipping_group"
#include "gls_auto_lib.h"
#undef LIB_BASE_NAME

namespace disti
{
#ifdef GLES
class GlsGloFile;
#endif

// SetValue enumerations
enum
{
    GLS_CLIPPING_GROUP_STATE = GLS_LAST_INITIALIZER + 1,
    GLS_CLIPPING_GROUP_CLIPPING_ACTIVE,
    GLS_CLIPPING_GROUP_BOTTOM_LEFT_CORNER,
    GLS_CLIPPING_GROUP_TOP_RIGHT_CORNER,
    GLS_CLIPPING_GROUP_SHOW_OUTLINE
};

/** Runtime implementation of a GlsClippingGroup */
class GlsClippingGroup : public Group
{
public:
    friend class GlsClippingGroupEditor;
    typedef Group _BaseClass;

    /** Construct a new GlsClippingGroup.
      * \param generateInstance  Whether or not to generate an instance name for this clipping group 
      */
    GLSGEN_GLSCLIPPINGGROUP_EXPORT explicit GlsClippingGroup( bool generateInstance = false );

    /** Copy an existing clipping group's properties and clone its children to construct a new clipping group.
      * \param clippingGroup The clipping group whose properties to copy and whose children to clone.
      * \param generateInstance  Whether or not to generate an instance name for this clipping group 
      */
    GLSGEN_GLSCLIPPINGGROUP_EXPORT GlsClippingGroup( const GlsClippingGroup& clippingGroup, bool generateInstance );

    /** Destructs a GlsClippingGroup object */
    virtual GLSGEN_GLSCLIPPINGGROUP_EXPORT ~GlsClippingGroup();

    static GLSGEN_GLSCLIPPINGGROUP_EXPORT DisplayObject* CreateInstance();

    virtual GLSGEN_GLSCLIPPINGGROUP_EXPORT void SetAvailableAttributes( unsigned int value );

    virtual GLSGEN_GLSCLIPPINGGROUP_EXPORT DisplayObject* CloneObject( bool generateNames = false );

    virtual GLSGEN_GLSCLIPPINGGROUP_EXPORT void CopyProperties( DisplayObject* src );

#ifndef GLES
    virtual GLSGEN_GLSCLIPPINGGROUP_EXPORT InterfaceListType* GetCppInterfaceDescription( InterfaceListType* addToThisList = NULL );
    virtual GLSGEN_GLSCLIPPINGGROUP_EXPORT void               GetCppInterfaceDescriptionFree( InterfaceListType* array );
#endif

    virtual GLSGEN_GLSCLIPPINGGROUP_EXPORT void Draw( void );

    virtual GLSGEN_GLSCLIPPINGGROUP_EXPORT DisplayObject* Pick3D( const Vector& winLoc,
        const Vector&                                                           logicalCoords,
        float                                                                   scale,
        const Vector&                                                           directionVector,
        Vector&                                                                 collisionWinLoc /*Returned*/,
        const OpenGLMatrices&                                                   drawnMatrices );

    virtual GLSGEN_GLSCLIPPINGGROUP_EXPORT void SetValue( int spec, va_list& args );

    //////////////////////////////////////////////////
    // GlsClippingGroup specific operations
    //////////////////////////////////////////////////

    /** \return If clipping is active for this group */
    GLSGEN_GLSCLIPPINGGROUP_EXPORT bool ClippingActive( void ) { return _clippingActive; }

    /** Sets if clipping is active for this group
      * \param value The new clipping value
      */
    GLSGEN_GLSCLIPPINGGROUP_EXPORT void ClippingActive( bool value );

    /** \return Gets bottom left corner of clip region */
    GLSGEN_GLSCLIPPINGGROUP_EXPORT Vector Blc( void ) { return _blc; }

    /** Sets new bottom left corner for the clip region
      * \param value The new blc
      */
    GLSGEN_GLSCLIPPINGGROUP_EXPORT void Blc( const Vector& value );

    /** \return Gets top right corner of clip region */
    GLSGEN_GLSCLIPPINGGROUP_EXPORT Vector Trc( void ) { return _trc; }

    /** Sets new top right corner for the clip region
      * \param value The new trc
      */
    GLSGEN_GLSCLIPPINGGROUP_EXPORT void Trc( const Vector& value );

    /** \return If clip region should always be drawn in the editor */
    GLSGEN_GLSCLIPPINGGROUP_EXPORT bool ShowOutline( void ) { return _showOutline; }

    /** Sets if clip region should always be drawn in the editor
      * \param value The new show value
      */
    GLSGEN_GLSCLIPPINGGROUP_EXPORT void ShowOutline( bool value );

protected:
    /** Get the four corners of the clip region transformed by the current DCS and offset by the group's location
      * \param tlc [out] receives top left corner
      * \param trc [out] receives top right corner
      * \param brc [out] receives bottom right corner
      * \param blc [out] receives bottom left corner
      */
    GLSGEN_GLSCLIPPINGGROUP_EXPORT void GetClipRegionCorners( Vector& tlc, Vector& trc, Vector& brc, Vector& blc );

#ifdef GLES
    /** Set a single attribute from the GLO file.
      * \param data The attribute to set and its associated data.
      */
    virtual GLSGEN_GLSCLIPPINGGROUP_EXPORT void SetFromGloData( GlsGloFileAttribute& data );
#endif

    bool   _clippingActive; /*< Whether or not to call clipping is active */
    Vector _blc;            /*< Bottom Left Corner */
    Vector _trc;            /*< Top Right Corner */
    bool   _showOutline;    /*< Outline always visible in editor */

private:
    // Deleted copy assignment; use CloneObject() or the copy constructor instead.
    void operator=( const GlsClippingGroup& ); // = delete
};

} // namespace disti

#endif