gls_clipping_group.h

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

  \par Copyright Information

  Copyright (c) 2015 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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*/

#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 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