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#ifndef Fireworks_Core_FWModelChangeManager_h
#define Fireworks_Core_FWModelChangeManager_h
// -*- C++ -*-
//
// Package: Core
// Class : FWModelChangeManager
//
/**\class FWModelChangeManager FWModelChangeManager.h Fireworks/Core/interface/FWModelChangeManager.h
Description: Manages propagating announcements of changes to Models to any interested party
Usage:
<usage>
*/
//
// Original Author: Chris Jones
// Created: Thu Jan 17 17:37:49 EST 2008
//
// system include files
#include "sigc++/signal.h"
#include <set>
// user include files
#include "Fireworks/Core/interface/FWModelId.h"
#include "Fireworks/Core/interface/FWModelChangeSignal.h"
#include "Fireworks/Core/interface/FWItemChangeSignal.h"
// forward declarations
class FWEventItem;
class FWModelChangeManager {
public:
FWModelChangeManager();
virtual ~FWModelChangeManager();
// ---------- const member functions ---------------------
// ---------- static member functions --------------------
// ---------- member functions ---------------------------
void beginChanges();
void changed(const FWModelId&);
void changed(const FWEventItem*);
void endChanges();
sigc::signal<void()> changeSignalsAreComing_;
sigc::signal<void()> changeSignalsAreDone_;
void newItemSlot(FWEventItem*);
void itemsGoingToBeClearedSlot(void);
FWModelChangeManager(const FWModelChangeManager&) = delete; // stop default
const FWModelChangeManager& operator=(const FWModelChangeManager&) = delete; // stop default
private:
// ---------- member data --------------------------------
unsigned int m_depth;
std::vector<FWModelIds> m_changes;
std::set<const FWEventItem*> m_itemChanges;
std::vector<FWModelChangeSignal> m_changeSignals;
std::vector<FWItemChangeSignal> m_itemChangeSignals;
};
class FWChangeSentry {
public:
FWChangeSentry(FWModelChangeManager& iM) : m_manager(&iM) { m_manager->beginChanges(); }
~FWChangeSentry() { m_manager->endChanges(); }
private:
FWModelChangeManager* m_manager;
};
#endif
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