Re: How do I make my object "browsable"

Hi Toby,

On Tue, 2008-03-25 at 16:13 +0100, Axel Naumann wrote:
> Hi Tobias,
>
> you would need to implement your own version of TParameter with its own
> Browse method that e.g. creates a histo, fills it, and draws it. You can
> also call Inspect() from your object's Browse() methods - just give it a
> try, maybe it does what you want.

What you need is something like

        template <typename T>
        class MyParameter : public TParameter<T>
        {
        public:
          void Browse(TBrowser*) { 
            if (!fHisto) 
              fHisto = new TH1D(GetName(), GetName(), 1, GetVal()-.5,GetVal()+.5);
            fHisto->SetBinContent(1, GetVal());
            fHisto->Draw();
          }
          MyParameter(const char* name, const T& val) 
            TParameter<T>(name, val),
            fHisto(0)
          {}
          virtual ~MyParameter() { if (fHisto) delete fHisto; }
        private:
          TH1D* fHisto; //! Transient
        };
        

and then you have to remember to make dictionaries for the specialisations you need

        #pragma link C++ class MyParameter<double>+;
        #pragma link C++ class MyParameter<int>+;
        
        

Kind of round-about way of doing it, but I'm afraid it's the only way.

Yours,

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