rd::YarpLocalImageManager Class Reference

Image input manager based in YARP. More...

#include <YarpLocalImageManager.hpp>

Inheritance diagram for rd::YarpLocalImageManager:

Public Member Functions
virtual bool	start ()
	Start to capture images. More...
virtual bool	stop ()
	Stop capturing images.
virtual bool	isStopped () const
	True if the manager is not active.
virtual bool	setEnabled (bool enabled)
	Enables/disables notifications to listeners.
virtual bool	configure (const std::string &parameter, const std::string &value)
	Configures a parameter with a value.
virtual Image	getImage () const
	Return the last received image.
virtual	~YarpLocalImageManager ()
	Destructor. Used to reset the local static reference after destroying this manager.
Public Member Functions inherited from rd::ImageManager
bool	addImageEventListener (ImageEventListener *listener)
	Adds a ImageEventListener to the list of observers to be notified of events.
bool	removeImageEventListeners ()
	Unregisters all the ImageEventListener stored.

Static Public Member Functions
static bool	RegisterManager ()
	Register this manager in the ImageManager registry so that can be used. More...
Static Public Member Functions inherited from rd::ImageManager
static ImageManager *	getImageManager ()
	Get a reference to the ImageManager. More...
static ImageManager *	getImageManager (const std::string &id)
	Get a reference to the ImageManager. More...
static bool	destroyImageManager ()
	Deallocate all the registered ImageManager.

Static Public Attributes
static const std::string	id = "YARPlocal"
	String that identifies this manager.

Protected Member Functions
void	onRead (Image &image)
	Yarp event for incoming messages.

Private Member Functions
	YarpLocalImageManager ()
	Constructor. More...
	YarpLocalImageManager (const YarpLocalImageManager &)
YarpLocalImageManager &	operator= (const YarpLocalImageManager &)

Private Attributes
yarp::os::Semaphore	semaphore
	Semaphore to make the image manipulation thread-safe.
Image	image
	Last image received.
yarp::os::BufferedPort< Image >	imagePort
	Yarp port to communicate with the remote camera.
std::string	local_port_name
	Name of the local yarp port.
std::string	remote_port_name
	Name of the camera (remote) yarp port.
bool	stopped
bool	enabled
yarp::dev::PolyDriver	cameraDevice
int	camera_id
	Used to select when several cameras are attached.

Static Private Attributes
static YarpLocalImageManager *	uniqueInstance = NULL
	Reference to this manager (unique instance)

Additional Inherited Members
Static Protected Member Functions inherited from rd::ImageManager
static bool	Register (ImageManager *manager, const std::string &id)
	This function allows subclasses to install their unique instances in the singleton register to be selected later by the user.
Protected Attributes inherited from rd::ImageManager
std::vector< ImageEventListener * >	listeners
	Observers registered to be notified of image events.

Detailed Description

ImageManager is a singleton text (only one instance of this object can exist, that is is shared by all the users). To use this class, we first have to register the manager with the RegisterManager() method. Then, we can get the reference to the YarpLocalImageManager with ImageManager::getImageManager(), using the corresponding id and access the manager with that reference.

Imnage events are broadcasted to the registered listeners, along with the reference to the manager that triggered them to be able to access the image.

Constructor & Destructor Documentation

YarpLocalImageManager()

rd::YarpLocalImageManager::YarpLocalImageManager ( )

private

Constructor for this class is private, since the singleton can only be instantiated once, and the instantiation is done at the RegisterManager() method.

Member Function Documentation

RegisterManager()

bool rd::YarpLocalImageManager::RegisterManager ( )

static

It ensures that only one manager of this type is created (unique instance).

start()

bool rd::YarpLocalImageManager::start ( )

virtual

This function is supposed to be called after ImageManager configuration.

Implements rd::ImageManager.

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

• src/libraries/ImageLib/YarpLocalImageManager.hpp
• src/libraries/ImageLib/YarpLocalImageManager.cpp