// @(#)root/meta:$Name: $:$Id: TToggle.h,v 1.1.1.1 2000/05/16 17:00:44 rdm Exp $ // Author: Piotr Golonka 30/07/97 /************************************************************************* * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. * * All rights reserved. * * * * For the licensing terms see $ROOTSYS/LICENSE. * * For the list of contributors see $ROOTSYS/README/CREDITS. * *************************************************************************/ #ifndef ROOT_TToggle #define ROOT_TToggle ////////////////////////////////////////////////////////////////////////// // // // TToggle // // // // This class defines toggling facility for both - object's method or // // variables. // // Assume that user provides an object with a two-state field, and // // methods to Get/Set value of this field. This object enables to switch// // values via this method when the only thing you know about the field // // is the name of the method (or method itself) which sets the field. // // This facility is required in context popup menu, when the only // // information about how to toggle a field is a name of method which // // sets it. // // This Object may be also used for toggling an integer variable, // // which may be important while building universal objects... // // When user provides a "set-method" of name SetXXX this object tries // // automaticaly to find a matching "get-method" by looking for a method // // with name GetXXX or IsXXX for given object. // // // ////////////////////////////////////////////////////////////////////////// #ifndef ROOT_TObject #include "TObject.h" #endif #ifndef ROOT_TMethodCall #include "TMethodCall.h" #endif #ifndef ROOT_TMethod #include "TMethod.h" #endif #ifndef ROOT_TNamed #include "TNamed.h" #endif class TToggle: public TNamed { private: Bool_t fState; //Object's state - "a local copy" Long_t fOnValue; //Value recognized as switched ON (Def=1) Long_t fOffValue; //Value recognized as switched OFF(Def=0) Long_t fValue; //Local copy of a value returned by called function protected: Bool_t fInitialized; //True if either SetToggledObject or SetToggledVariable called - enables Toggle() method. TObject *fObject; //The object this Toggle belongs to TMethodCall *fGetter; //Method to Get a value of fObject; TMethodCall *fSetter; //Method to Set a value of fObject; Int_t *fTglVariable; //Alternatively: pointer to an integer value to be Toggled instead of TObjectl public: TToggle(); virtual void SetToggledObject(TObject *obj, TMethod *anymethod); // you just provide any method which has got an initialized pointer // to TDataMember... The rest is done automatically... virtual void SetToggledVariable(Int_t &var); virtual Bool_t IsInitialized(){return fInitialized;}; virtual Bool_t GetState(); virtual void SetState(Bool_t state); virtual void Toggle(); virtual void SetOnValue(Long_t lon){fOnValue=lon;}; virtual Long_t GetOnValue(){return fOnValue;}; virtual void SetOffValue(Long_t lof){fOffValue=lof;}; virtual Long_t GetOffValue(){return fOffValue;}; virtual Int_t GetValue(){return fValue;}; virtual void SetValue(Long_t val); ClassDef(TToggle,0) //Facility for toggling datamembers on/off }; #endif