gls_mutex_group.h

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/*! \file
  \brief  The disti::GlsMutexGroup 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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*/

#ifndef _GLS_MUTEX_GROUP_H
#define _GLS_MUTEX_GROUP_H

#include "gls_cpp_lang_support.h"
#include "group.h"

//////////////////// Provides support for creating DLLs ////////////////////////
#if( defined( GLSGEN_EXPORT_GLSMUTEXGROUP ) || defined( GLSGEN_IMPORT_GLSMUTEXGROUP ) || defined( GLS_EXPORT_GENERATED ) || defined( GLS_IMPORT_GENERATED ) ) \
    && defined( _MSC_VER )
#    if defined( GLSGEN_EXPORT_GLSMUTEXGROUP ) || defined( GLS_EXPORT_GENERATED )
#        define GLSGEN_GLSMUTEXGROUP_EXPORT __declspec( dllexport )
#    else
#        define GLSGEN_GLSMUTEXGROUP_EXPORT __declspec( dllimport )
#    endif
#else
#    define GLSGEN_GLSMUTEXGROUP_EXPORT
#endif
///////////////////////////////////////////////////////////////////////////////

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

namespace disti
{
// These are specific to GlsMutexGroup
static AttributeName MetaMutexState( "MutexState" );
static AttributeName MetaState( "State" );
static AttributeName MetaCalculateInvisibleStates( "CalculateInvisibleStates" );
static AttributeName MetaPickInvisibleStates( "PickInvisibleStates" );
static AttributeName MetaPredrawInvisibleStates( "PreDrawInvisibleStates" );
static AttributeName MetaInputDeviceBehavior( "InputDeviceBehavior" );

// SetValue enumerations
enum
{
    GLS_MUTEX_GROUP_STATE = GLS_LAST_INITIALIZER + 1,
    GLS_MUTEX_GROUP_CALC_INVISIBLE_STATES,
    GLS_MUTEX_GROUP_PICK_INVISIBLE_STATES,
    GLS_MUTEX_GROUP_PREDRAW_INVISIBLE_STATES,
    GLS_MUTEX_GROUP_INPUT_DEVICE_BEHAVIOR
};

#ifdef GLES
class GlsGloFileAttribute;
#endif

/** Runtime implementation of a GlsMutexGroup */
class GlsMutexGroup : public Group
{
private:
    GlsMutexGroup& operator=( const GlsMutexGroup& ) DISTI_SPECIAL_MEM_FUN_DELETE;
    GlsMutexGroup( const GlsMutexGroup& ) DISTI_SPECIAL_MEM_FUN_DELETE;

public:
    friend class GlsMutexGroupEditor;
    DISTI_DEPRECATED( "This identifier is forbidden by the C++ standard. Use BaseClass instead." )
    typedef Group _BaseClass;
    typedef Group BaseClass;

    /** Create a new GlsMutexGroup.
      * \param generateInstance  Whether or not to generate an instance name
      * for this mutex group */
    GLSGEN_GLSMUTEXGROUP_EXPORT GlsMutexGroup( bool generateInstance = false );

    GLSGEN_GLSMUTEXGROUP_EXPORT GlsMutexGroup( const GlsMutexGroup& that, const bool generateNames );

    /** Destructs a GlsMutexGroup object */
    virtual GLSGEN_GLSMUTEXGROUP_EXPORT ~GlsMutexGroup();

    static GLSGEN_GLSMUTEXGROUP_EXPORT DisplayObject* CreateInstance();

    virtual GLSGEN_GLSMUTEXGROUP_EXPORT void SetAvailableAttributes( unsigned int value );

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

    virtual GLSGEN_GLSMUTEXGROUP_EXPORT void CopyProperties( DisplayObject* src );

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

    virtual GLSGEN_GLSMUTEXGROUP_EXPORT void Calculate( double time );
    virtual GLSGEN_GLSMUTEXGROUP_EXPORT void PreDraw( const OpenGLMatrices& parentMatrices, Culler& culler );
    virtual GLSGEN_GLSMUTEXGROUP_EXPORT void Draw( void );

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

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

    /** Traverses upward in the hierarchy to determine if this object is visible in the scene.
      */
    GLSGEN_GLSMUTEXGROUP_EXPORT bool IsVisibleInScene( const DisplayObject* obj = NULL ) const DISTI_METHOD_OVERRIDE;

    //////////////////////////////////////////////////
    // GlsMutexGroup specific operations
    //////////////////////////////////////////////////

    /** \return The mutex state of this group, -1 = none */
    GLSGEN_GLSMUTEXGROUP_EXPORT int MutexState( void ) const { return _state; }

    /** Sets the mutex state of this group, -1 = none
      * \param state The new mutex state
      */
    GLSGEN_GLSMUTEXGROUP_EXPORT void MutexState( int state );

    // For legacy InputDevices
    /** \return The InputDevice state of this group, 1 to N */
    GLSGEN_GLSMUTEXGROUP_EXPORT int State( void ) { return _state; }

    // For legacy InputDevices
    /** Sets the InputDevice state of this group, 1 to N.
      * \param state The new InputDevice state
      */
    GLSGEN_GLSMUTEXGROUP_EXPORT void State( int state );

    /** \return The calculate option of this group, true = calculate all objects, false = calculate active object only */
    GLSGEN_GLSMUTEXGROUP_EXPORT bool CalculateInvisibleStates( void ) { return _calculateInvisibleStates; }

    /** Sets the calculate option of this group
      * \param value The new calculate option, true = calculate all objects, false = calculate active object only
      */
    GLSGEN_GLSMUTEXGROUP_EXPORT void CalculateInvisibleStates( bool value );

    /** \return The picking option of this group, true = pick all objects, false = pick active object only */
    GLSGEN_GLSMUTEXGROUP_EXPORT bool PickInvisibleStates( void ) { return _pickInvisibleStates; }

    /** Sets the picking option of this group
      * \param value The new picking option, true = pick all objects, false = pick active object only
      */
    GLSGEN_GLSMUTEXGROUP_EXPORT void PickInvisibleStates( bool value );

    /** \return The predraw option of this group, true = predraw all objects, false = predraw active object only */
    GLSGEN_GLSMUTEXGROUP_EXPORT bool PreDrawInvisibleStates( void ) { return _predrawInvisibleStates; }

    /** Sets the predraw option of this group
      * \param value The new predraw option, true = predraw all objects, false = predraw active object only
      */
    GLSGEN_GLSMUTEXGROUP_EXPORT void PreDrawInvisibleStates( bool value );

    /** \return Simulate the legacy InputDevice behavior, where state 0 is always shown and the state is one-based. */
    GLSGEN_GLSMUTEXGROUP_EXPORT bool InputDeviceBehavior( void ) { return _inputDevice; }

    /** Sets the simulation of legacy InputDevice behavior, where state 0 is always shown
      * \param value True = InputDevice, False = MutexGroup
      */
    GLSGEN_GLSMUTEXGROUP_EXPORT void InputDeviceBehavior( bool value );

protected:
    bool ValidMutexState( const int state ) const
    {
        return ( state >= 0 && state < (int)( _objects.Count() ) );
    }

    bool ValidInputDeviceState( const int state ) const
    {
        // 0 is not a valid state
        return ( state > 0 && state < (int)( _objects.Count() ) );
    }

    /** Helper routine for Pick3D */
    DisplayObject* Pick3DUtil( const Vector& winLoc,
        const Vector&                        logicalCoords,
        float                                scale,
        const Vector&                        directionVector,
        Vector&                              collisionWinLoc /*Returned*/,
        const OpenGLMatrices&                drawnMatrices );

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

    bool _inputDevice; /*< True = InputDevice functionality (state 0 always showing)
                           False = MutexGroup functionality */

    int _state; /*< The index of the currently active object in the group, 0 to N, anything else = none */

    bool _calculateInvisibleStates; /*< Whether or not to call calculate on invisible states */
    bool _pickInvisibleStates;      /*< Whether or not to call pick on invisible states */
    bool _predrawInvisibleStates;   /*< Whether or not to call predraw on invisible states */
};

} // namespace disti

#endif