TButton


class description - source file - inheritance tree

class TButton : public TPad, public TAttText

    private:
TButton TButton(const TButton& org) TButton& operator=(const TButton& rhs) public:
TButton TButton() TButton TButton(const char* title, const char* method, Double_t x1, Double_t y1, Double_t x2, Double_t y2) virtual void ~TButton() static TClass* Class() virtual void Divide(Int_t nx = 1, Int_t ny = 1, Float_t xmargin = 0.01, Float_t ymargin = 0.01, Int_t color = 0) virtual void Draw(Option_t* option) virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py) virtual Bool_t GetFraming() virtual const char* GetMethod() const virtual TClass* IsA() const virtual void Paint(Option_t* option) virtual void PaintModified() virtual void Range(Double_t x1, Double_t y1, Double_t x2, Double_t y2) virtual void SavePrimitive(ofstream& out, Option_t* option) virtual void SetBorderMode(Short_t bordermode) virtual void SetFraming(Bool_t f = 1) virtual void SetGrid(Int_t valuex = 1, Int_t valuey = 1) virtual void SetLogx(Int_t value = 1) virtual void SetLogy(Int_t value = 1) virtual void SetMethod(const char* method) virtual void SetName(const char* name) virtual void ShowMembers(TMemberInspector& insp, char* parent) virtual void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b) virtual void x3d(Option_t* option)

Data Members

    private:
Bool_t fFocused If cursor is in... Bool_t fFraming True if you want a frame to be painted when pressed protected:
TString fMethod Method to be executed by this button


See also

TGroupButton

Class Description

  A TButton object is a user interface object.
  A TButton has a name and an associated action.
  When the button is clicked with the left mouse button, the cooresponding
  action is executed.
  A Tbutton can be created by direct invokation of the constructors
  or via the graphics editor.
  The Action can be set via TButton::SetMethod.
  The action can be any command. Examples of actions:
     "34+78" When the button is clicked, the result of addition is printed.
     ".x macro.C" . Clicking the button executes the macro macro.C
  The action can be modified at any time via TButton::SetMethod.

  To modify the layout/size/contents of one or several buttons
  in a canvas, you must set the canvas editable via TCanvas::SetEditable.
  By default a TCanvas is editable.
  By default a TDialogCanvas is not editable.
  TButtons are in general placed in a TDialogCanvas.

  A TButton being a TPad, one can draw graphics primitives in it
  when the TCanvas/TDialogCanvas is editable.

       Example of a macro creating a dialogcanvas with buttons
void but() {
//   example of a dialogcanvas with a few buttons

   TDialogCanvas *dialog = new TDialogCanvas("dialog","",200,300);

// Create first button. Clicking on this button will execute 34+56
   TButton *but1 = new TButton("button1","34+56",.05,.8,.45,.88);
   but1->Draw();

// Create second button. Clicking on this button will create a new canvas
   TButton *but2 = new TButton("canvas","c2 = new TCanvas("c2")",.55,.8,.95,.88);
   but2->Draw();

// Create third button. Clicking on this button will invoke the browser
   but3 = new TButton("Browser","br = new TBrowser("br")",0.25,0.54,0.75,0.64);
   but3->SetFillColor(42);
   but3->Draw();

// Create last button with no name. Instead a graph is draw inside the button
// Clicking on this button will invoke the macro tutorials/graph.C
   button = new TButton("",".x tutorials/graph.C",0.15,0.15,0.85,0.38);
   button->SetFillColor(42);
   button->Draw();
   button->cd();

   Double_t x[8] = {0.08,0.21,0.34,0.48,0.61,0.7,0.81,0.92};
   Double_t y[8] = {0.2,0.65,0.4,0.34,0.24,0.43,0.75,0.52};
   TGraph *graph = new TGraph(8,x,y);
   graph->SetMarkerColor(4);
   graph->SetMarkerStyle(21);
   graph->Draw("lp");

   dialog->cd();
}

   Executing the macro above produces the following dialogcanvas

/*

*/


TButton(): TPad()
*-*-*-*-*-*-*-*-*-*-*Button default constructor*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                  ==========================

TButton(const char *title, const char *method, Double_t x1, Double_t y1,Double_t x2, Double_t y2) :TPad("button",title,x1,y1,x2,y2,18,2,1), TAttText(22,0,1,61,0.65)
*-*-*-*-*-*-*-*-*-*-*Button normal constructor*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                  =========================

   Note that the button coordinates x1,y1,x2,y2 are always in the range [0,1]

SetEditable(kFALSE);

~TButton()
*-*-*-*-*-*-*-*-*-*-*Button default destructor*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                  =========================

void Draw(Option_t *option)
*-*-*-*-*-*-*-*-*-*-*Draw this button with its current attributes*-*-*-*-*
*-*                  ============================================

void ExecuteEvent(Int_t event, Int_t px, Int_t py)
*-*-*-*-*-*-*-*-*-*-*Execute action corresponding to one event*-*-*-*
*-*                  =========================================
  This member function is called when a Button object is clicked.


void Paint(Option_t *option)
*-*-*-*-*-*-*-*-*-*-*Paint this button with its current attributes*-*-*-*
*-*                  =============================================

void PaintModified()

void Range(Double_t x1, Double_t y1, Double_t x2, Double_t y2)
*-*-*-*-*-*-*-*-*-*-*Set world coordinate system for the pad*-*-*-*-*-*-*
*-*                  =======================================

void SavePrimitive(ofstream &out, Option_t *)
 Save primitive as a C++ statement(s) on output stream out

void SetFraming(Bool_t f)
 if framing is set, button will be highlighted



Inline Functions


           TButton& operator=(const TButton& rhs)
            TButton TButton(const char* title, const char* method, Double_t x1, Double_t y1, Double_t x2, Double_t y2)
               void Divide(Int_t nx = 1, Int_t ny = 1, Float_t xmargin = 0.01, Float_t ymargin = 0.01, Int_t color = 0)
        const char* GetMethod() const
               void SetBorderMode(Short_t bordermode)
             Bool_t GetFraming()
               void SetGrid(Int_t valuex = 1, Int_t valuey = 1)
               void SetLogx(Int_t value = 1)
               void SetLogy(Int_t value = 1)
               void SetMethod(const char* method)
               void SetName(const char* name)
               void x3d(Option_t* option)
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)


Author: Rene Brun 01/07/96
Last update: root/gpad:$Name: $:$Id: TButton.cxx,v 1.5 2001/11/28 16:05:41 rdm Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *


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