g2o::HyperGraphActionLibrary Class Reference

library of actions, indexed by the action name; More...

#include <hyper_graph_action.h>

Collaboration diagram for g2o::HyperGraphActionLibrary:

Public Member Functions
HyperGraphElementAction *	actionByName (const std::string &name)
bool	registerAction (HyperGraphElementAction *action)
bool	unregisterAction (HyperGraphElementAction *action)
HyperGraphElementAction::ActionMap &	actionMap ()

Static Public Member Functions
static HyperGraphActionLibrary *	instance ()
	return the single instance of the HyperGraphActionLibrary More...
static void	destroy ()
	free the instance More...

Protected Member Functions
	HyperGraphActionLibrary ()
	~HyperGraphActionLibrary ()

Protected Attributes
HyperGraphElementAction::ActionMap	_actionMap

Static Private Attributes
static HyperGraphActionLibrary *	actionLibInstance = 0

Detailed Description

library of actions, indexed by the action name;

library of actions, indexed by the action name; one can use ti to register a collection of actions

Definition at line 138 of file hyper_graph_action.h.

Constructor & Destructor Documentation

g2o::HyperGraphActionLibrary::HyperGraphActionLibrary ( )

protected

Definition at line 142 of file hyper_graph_action.cpp.

  {
  }

g2o::HyperGraphActionLibrary::~HyperGraphActionLibrary ( )

protected

Definition at line 160 of file hyper_graph_action.cpp.

  {
    for (HyperGraphElementAction::ActionMap::iterator it = _actionMap.begin(); it != _actionMap.end(); ++it) {
      delete it->second;
    }
  }

Member Function Documentation

HyperGraphElementAction * g2o::HyperGraphActionLibrary::actionByName

(

const std::string &

name

)

Definition at line 167 of file hyper_graph_action.cpp.

Referenced by g2o::G2oQGLViewer::draw(), g2o::DrawAction::initializeDrawActionsCache(), and g2o::deprecated::VertexSE3WriteGnuplotAction::operator()().

  {
    HyperGraphElementAction::ActionMap::iterator it=_actionMap.find(name);
    if (it!=_actionMap.end())
      return it->second;
    return 0;
  }

HyperGraphElementAction::ActionMap& g2o::HyperGraphActionLibrary::actionMap ( )

inline

Definition at line 151 of file hyper_graph_action.h.

{return _actionMap;}

void g2o::HyperGraphActionLibrary::destroy ( )

static

free the instance

Definition at line 154 of file hyper_graph_action.cpp.

  {
    delete actionLibInstance;
    actionLibInstance = 0;
  }

HyperGraphActionLibrary * g2o::HyperGraphActionLibrary::instance ( )

static

return the single instance of the HyperGraphActionLibrary

Definition at line 146 of file hyper_graph_action.cpp.

Referenced by g2o::G2oQGLViewer::draw(), g2o::G2O_ATTRIBUTE_CONSTRUCTOR(), g2o::DrawAction::initializeDrawActionsCache(), g2o::deprecated::VertexSE3WriteGnuplotAction::operator()(), g2o::RegisterActionProxy< T >::RegisterActionProxy(), and g2o::RegisterActionProxy< T >::~RegisterActionProxy().

  {
    if (actionLibInstance == 0) {
      actionLibInstance = new HyperGraphActionLibrary;
    }
    return actionLibInstance;
  }

bool g2o::HyperGraphActionLibrary::registerAction

(

HyperGraphElementAction *

action

)

Definition at line 175 of file hyper_graph_action.cpp.

References __PRETTY_FUNCTION__, g2o::HyperGraphElementAction::name(), and g2o::HyperGraphElementActionCollection::registerAction().

Referenced by g2o::G2O_ATTRIBUTE_CONSTRUCTOR(), and g2o::RegisterActionProxy< T >::RegisterActionProxy().

  {
    HyperGraphElementAction* oldAction = actionByName(action->name());
    HyperGraphElementActionCollection* collection = 0;
    if (oldAction) {
      collection = dynamic_cast<HyperGraphElementActionCollection*>(oldAction);
      if (! collection) {
        cerr << __PRETTY_FUNCTION__ << ": fatal error, a collection is not at the first level in the library" << endl;
        return 0;
      }
    }
    if (! collection) {
#ifdef G2O_DEBUG_ACTIONLIB
      cerr << __PRETTY_FUNCTION__ << ": creating collection for \"" << action->name() << "\"" << endl;
#endif
      collection = new HyperGraphElementActionCollection(action->name());
      _actionMap.insert(make_pair(action->name(), collection));
    }
    return collection->registerAction(action);
  }

bool g2o::HyperGraphActionLibrary::unregisterAction

(

HyperGraphElementAction *

action

)

Definition at line 196 of file hyper_graph_action.cpp.

References g2o::HyperGraphElementActionCollection::actionMap(), and g2o::HyperGraphElementActionCollection::unregisterAction().

Referenced by g2o::RegisterActionProxy< T >::~RegisterActionProxy().

  {
    list<HyperGraphElementActionCollection*> collectionDeleteList;

    // Search all the collections and delete the registered actions; if a collection becomes empty, schedule it for deletion; note that we can't delete the collections as we go because this will screw up the state of the iterators
    for (HyperGraphElementAction::ActionMap::iterator it=_actionMap.begin(); it != _actionMap.end(); ++it) {
      HyperGraphElementActionCollection* collection = dynamic_cast<HyperGraphElementActionCollection*> (it->second);
      if (collection != 0) {
        collection->unregisterAction(action);
        if (collection->actionMap().size() == 0) {
          collectionDeleteList.push_back(collection);
        }
      }
    }

    // Delete any empty action collections
    for (list<HyperGraphElementActionCollection*>::iterator itc = collectionDeleteList.begin(); itc != collectionDeleteList.end(); ++itc) {
      //cout << "Deleting collection " << (*itc)->name() << endl;
      _actionMap.erase((*itc)->name());
    }

    return true;
  }

Member Data Documentation

HyperGraphElementAction::ActionMap g2o::HyperGraphActionLibrary::_actionMap

protected

Definition at line 155 of file hyper_graph_action.h.

HyperGraphActionLibrary * g2o::HyperGraphActionLibrary::actionLibInstance = 0

staticprivate

Definition at line 157 of file hyper_graph_action.h.

---

The documentation for this class was generated from the following files:

• /home/xuezhisd/CLionProjects/g2o/g2o/core/hyper_graph_action.h
• /home/xuezhisd/CLionProjects/g2o/g2o/core/hyper_graph_action.cpp