GUI_item.h

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#pragma once

//#include "precompiled.h"
#include "GUI_Text.h"

#include <osgText/Font3D>
#include <osgText/Text3D>

using namespace vrecko;

namespace APGUI
{

    typedef enum GUI_ITEM_STATE {
        GUI_ITEM_STATE_DEFAULT = 1,     // default state
        GUI_ITEM_STATE_ACTIVE,          // active - used in ICON:SWITCH class, when icon represents active state - e.g. auto-rotate
        GUI_ITEM_STATE_DISABLED,        // item is temporary disabled - it is visible, but it is 'grayed' and can't be pointed nor clicked
    };

    typedef enum GUI_ACTION {
        GUI_ACTION_MAIN = 1,
        GUI_ACTION_CONTEXT,
    };

    class Interconnection
    {
    public:
        Interconnection(const string typ, const string sen, const string rec) { type = typ; sender = sen; receiver = rec; }

        string type;
        string sender;
        string receiver;
    };

    class GUI_Controller;





class GUI_Item : public Ability
{
public:

    GUI_Item(const char* abName);
    ~GUI_Item();

    string getGUIItemName() { return _name; }


    virtual void pointed(bool pointed) = 0;

    //TODO should this be virtual?
    virtual void setState(GUI_ITEM_STATE newState) = 0;


    virtual bool processAction( const int sensorNumber, const APGUI::GUI_ACTION action, const bool pressed) = 0;

    inline bool isDefaultStateActive() { return _defaultStateActive; }
    
    inline void show() { _parent->show(); }
    
    inline void hide() { _parent->hide(); }
    
    void hideTooltip();
    
    void showTooltip();

    //virtual void switchModels() = 0;

    

    //void setLabel( const std::string& content, const osg::Vec3& pos, float size, osg::Vec4& color );


    //for testing
    //osgText::Text3D* createText3D( const osg::Vec3& pos, const std::string& content, float size, float depth );

    virtual void setColours( osg::Vec4 colourActive, osg::Vec4 colourDefault, osg::Vec4 colourHovered, osg::Vec4 colourPressed, osg::Vec4 colourDisabled );


protected:


    string _name;

    string _receiver;

    GUI_ITEM_STATE _state;

    //FIXME if GUI_controller is implemented as singleton, this can be removed
    GUI_Controller *_controller;

    // Group for texts - label, tooltip, whatever
    osg::Group *_texts;
    
    osg::ref_ptr<GUI_Text> _label;

    osg::ref_ptr<GUI_Text> _toolTip;

    EnvironmentObject *_parent;

    //  used in Menu
    int _sensorNumber;

    osg::ref_ptr<osg::MatrixTransform> _itemTransform;

    int _pointedCounter;

    bool _pressed;

    //      e.g. one of tools and one color should be 
    bool _defaultStateActive;

    
    // colors of items in different states

    osg::Vec4 _colourActive;

    osg::Vec4 _colourDefault;

    osg::Vec4 _colourHovered;

    osg::Vec4 _colourPressed;

    osg::Vec4 _colourDisabled;

    //  for simplify deletion of interconnection during destructor
    std::vector<Interconnection *> _interconnections;


    // Create new structures, add to scene graph
    osgText::Text* GUI_Item::createLabel();


    bool initialize(bool pointable = true, int sensor = -1);
    
};

}