TGuiBuilder.h

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// @(#)root/gui:$Id$
// Author: Valeriy Onuchin   12/08/04
 
/*************************************************************************
 * Copyright (C) 1995-2004, 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_TGuiBuilder
#define ROOT_TGuiBuilder
 
 
#include "TNamed.h"
 
enum EGuiBldAction { kGuiBldNone, kGuiBldCtor,  kGuiBldProj,
                     kGuiBldMacro, kGuiBldFunc };
 
class TGFrame;
class TGLayoutHints;
class TGPicture;
//////////////////////////////////////////////////////////////////////////
class TGuiBldAction : public TNamed {
 
public:
   Int_t          fType;   // type of action
   TString        fAct;    // action, after action execution new frame is created
   const char    *fPic;    // picture name
   const TGPicture *fPicture; // picture
   TGLayoutHints *fHints;  // layout hints for frame created by action
 
   TGuiBldAction(const char *name = 0, const char *title = 0,
                 Int_t type = kGuiBldCtor, TGLayoutHints *hints = 0);
   virtual ~TGuiBldAction();
 
   ClassDef(TGuiBldAction,0)  // gui builder action
};
 
 
//////////////////////////////////////////////////////////////////////////
class TGuiBuilder {
 
protected:
   TGuiBldAction *fAction;   // current action
 
public:
   TGuiBuilder();
   virtual ~TGuiBuilder();
 
   virtual void      AddAction(TGuiBldAction *, const char * /*section*/) {}
   virtual void      AddSection(const char * /*section*/) {}
   virtual TGFrame  *ExecuteAction() { return 0; }
   virtual void      SetAction(TGuiBldAction *act) { fAction = act; }
   TGuiBldAction    *GetAction() const { return fAction; }
   virtual Bool_t    IsExecutable() const  { return fAction && !fAction->fAct.IsNull(); }
   virtual void      Show() {}
   virtual void      Hide() {}
 
   static  TGuiBuilder  *Instance();
 
   ClassDef(TGuiBuilder,0)  // ABC for gui builder
};
 
R__EXTERN TGuiBuilder *gGuiBuilder; // global gui builder
 
#endif