GuiMenu.h

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//
// $Id: GuiMenu.h,v 1.7 2005/07/21 20:26:36 bv Exp $
//
// GuiMenu
//
// Package: MIDAD
//
// Wrap TG menu classes
//
// Contact: bv@bnl.gov
//
// Created on: Thu Nov  8 17:13:07 2001
//

#ifndef GUIMENU_H
#define GUIMENU_H


#include <Midad/Gui/GuiBase.h>
#include <TGMenu.h>

#include <list>
#include <map>
#include <string>

class TGLayoutHints;
class GuiMenu;

class GuiMenuEntry : public SigC::Object 
{
    TGMenuEntry* fMenuEntry;
    SigC::Signal0<void> fSig;
public:
    GuiMenuEntry() : fMenuEntry(0) {}
    virtual ~GuiMenuEntry() { }
    void Connect(SigC::Slot0<void> s) { fSig.connect(s); }
    void Trigger() { fSig.emit(); }
    void SetEntry(TGMenuEntry* tgme) { fMenuEntry = tgme; }
    TGMenuEntry* GetEntry() { return fMenuEntry; }
};

class GuiMenu : public TGPopupMenu, public GuiBase
{

public:

    typedef std::list<SigC::Ptr<GuiMenuEntry> > GuiMenuList;
    typedef std::list<SigC::Ptr<GuiMenu> > GuiSubMenuList;

    // GuiMenus don't need parents, so just default constructor
    GuiMenu();
    
    virtual ~GuiMenu() { 
        fEntries.erase(fEntries.begin(),fEntries.end()); 
    }

    // Override Rt
    virtual void Activated(int id);
    
    // Add a menu item.  Return itr for newly added element
    GuiMenuList::iterator Add(const char* label);
    GuiMenuList::iterator Add(const char* label, SigC::Slot0<void> slot);
    GuiMenuList::iterator Add(const char* label, GuiMenu& menu);
    GuiMenuList::iterator Insert(GuiMenuList::iterator gmitr, 
                                 const char* label);
    GuiMenuList::iterator Insert(GuiMenuList::iterator gmitr, 
                                 const char* label,
                                 SigC::Slot0<void> slot);
    GuiMenuList::iterator Insert(GuiMenuList::iterator gmitr,
                                 const char* label, 
                                 GuiMenu& menu);
    //GuiMenuList::iterator Find(const char* label);
    
    // Manipulate checkmark on entry.  False clears it
    void CheckEntry(GuiMenuList::iterator& mit, bool check_it = true);
    bool IsEntryChecked(GuiMenuList::iterator& mit);
    GuiMenuList& GetMenuList() { return fEntries; }

    // Clear menu of *all* entries
    void ClearAll();

private:

    void CheckEntry(int) {}     // don't use
    bool IsEntryChecked(int) { return false; } // don't use

    GuiMenuList fEntries;
    GuiSubMenuList fSubMenus; // for memory management
};                              // end of class GuiMenu

class GuiMenuBar : public TGMenuBar, public GuiBase
{
public:
    typedef std::map<std::string,SigC::Ptr<GuiMenu> > GuiMenuMap;
    GuiMenuBar(TGWindow& parent);

    virtual ~GuiMenuBar() { }

    void AddMenu(GuiMenu& menu, const char* label);
    GuiMenu* MakeAddMenu(const char* label);

    GuiMenu* GetMenu(const char* label);
    void RemoveMenu(const char* label);

private:

    GuiMenuMap fMenuMap;

};

#endif  // GUIMENU_H

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