//------------------------------------------------------------------------------
// gui tools classes	      																	--
// (C) Nicola Pozzobon 2008-2010, DipFIS UniPD                                --
//------------------------------------------------------------------------------

//______________________________________________________________________________
// {Trace}
// [File name] "gui_Menu.cpp"
// [Author] "Nicola Pozzobon"
// [Version] "0.5"
// [Modified by] "Nicola Pozzobon"
// [Last revision] "22 Jan 2009"
// [Language] "C++"
// [Compiler] "Visual C++ 8.x 9.x"
// [Member of] "Cool SEAL"
// [Project] "SEAL"
// [Description] "Source for the gui_Menu class"
// [Key documentation]
// "Visual C++ Reference Help"
// "Root reference guide"
// {Trace}
//______________________________________________________________________________

// Standard component

// Root Component
#include "TSystem.h"

// advanced
#include <vector> //NP** Needed to handle list of entries

// Application component
#include "global.h"
#include "gui_Menu.h"

// CINT Preprocessor class import definition
ClassImp(gui_Menu)

//______________________________________________________________________________
gui_Menu::gui_Menu(const char* label, TGMenuBar* menubar)
{
	// 'label' is the text appearing into the menu
	// 'menubar' is the actual main menu bar where
	// the "local" menu is attached

	// Debug
	dbg_Print("gui_Menu::gui_Menu:(const char*, TGMenuBar*)", DBG_LVL_ZERO);

	// Sets up the menu
	menu = menubar->AddPopup(label);
	menu->Connect(menu, "Activated(int)", "gui_Menu", this, "mnu_Do(int)");
}

//______________________________________________________________________________
gui_Menu::gui_Menu(const char* label)
{
	// 'label' is the text appearing into the menu
	// it is assumed by default that the menu will be added to the main menu bar 
	
	// Debug
	dbg_Print("gui_Menu::gui_Menu:(const char*)", DBG_LVL_ZERO);

	// Sets up the menu
	menu_Name.Form(label);
	menu = container_Menu()->AddPopup(label);
	menu->Connect(menu, "Activated(int)", "gui_Menu", this, "mnu_Do(int)");

	// Refresh
	Update();
}

/*
//______________________________________________________________________________
gui_Menu(const gui_Menu&)
{
	// Copy Constructor
	dbg_Print("gui_Menu::gui_Menu: copy constructor", DBG_LVL_ZERO);
}

//______________________________________________________________________________
const gui_Menu& operator=(const gui_Menu&)
{
	// Operator=
   dbg_Print("gui_Menu::operator=: copy operator", DBG_LVL_ZERO);
}
*/
//______________________________________________________________________________
//gui_Menu::gui_Menu(const char* label, gui_Bar* guibar)
//{
	// 'label' is the text appearing into the menu
	// 'guibar' is the actual main menu bar where
	// the "local" menu is attached

	// Debug
//	dbg_Print("gui_Menu::gui_Menu: default constructor", DBG_LVL_ZERO);

	// Sets up the menu
//	TGMenuBar* appoggio = guibar->root();
//	menu = appoggio->AddPopup(label);
//	menu->Connect(menu, "Activated(int)", "gui_Menu", this, "mnu_Do(int)");
	//update();
	//NP** Still problems in handling the update from gui_Main (static class)

//}
//______________________________________________________________________________
gui_Menu::~gui_Menu()
{
	// Default destructor.
	dbg_Print("gui_Menu::gui_Menu: default destructor", DBG_LVL_ZERO);

	// Remove the object from the container menu bar
	gui_Object::container_Menu()->RemovePopup(menu_Name); 

	// Deletes the root object
	delete menu;
}
//______________________________________________________________________________
void gui_Menu::mnu_Entry(const char* label, Int_t ijk)
{
	// We need some more explanation here....
	menu->AddEntry(label, ijk);
}
//______________________________________________________________________________
void gui_Menu::mnu_Separator()
{
	// Add menu separator
	menu->AddSeparator();
}
//______________________________________________________________________________
void gui_Menu::mnu_List(std::vector<const char*> entry_list)
{
	Int_t pres_no = 0;
	while (menu->GetEntry(pres_no+1) != 0) pres_no++;
	for(Int_t cnt=0; cnt<entry_list.size(); cnt++){
		if (entry_list[cnt] == "") menu->AddSeparator();
		else menu->AddEntry(entry_list[cnt], ++pres_no);
	}
}

//______________________________________________________________________________
void gui_Menu::mnu_Do(int t)
{
	// This function is called whenever any entry is pressed, as it has been
	// linked to the associated root TGPopupMenu when it was instantiated.
	dbg_Print("gui_Menu::mnu_Do:(Int)", DBG_LVL_FLOW);
	
	// Calls the associated handler, if anyone, passing the ID as argument
	//NP** NOT THIS WAY: gui_Object::task_Call(gui_Object::obj_Id());
	// ROOT and CINT need the parameter of the clicked entry, as the 
	// object ID fits well this role only for buttons.
	// Buttons are 1-entry objects, Menus are n-entries objects
	gui_Object::task_Call(t);
}
//______________________________________________________________________________
const TGPopupMenu* gui_Menu::Root() const
{
   // Returns the pointer to the embedded root object
   return menu;
}