This is a singleton for managing all external graphic renderers instances available in the system. More...

#include <ExternalGraphicRendererManager.h>

Inheritance diagram for te::map::ExternalGraphicRendererManager:

Public Types
typedef ClassLevelLockingPolicy < ::boost::lock_guard < ::boost::recursive_mutex > >	LockRead

typedef ClassLevelLockingPolicy < ::boost::lock_guard < ::boost::recursive_mutex > >	LockWrite

typedef volatile ExternalGraphicRendererManager	VolatileType

Public Member Functions
void	add (AbstractExternalGraphicRenderer *renderer)
	It adds a new external graphic renderer to the manager. More...

te::color::RGBAColor **	render (const te::se::ExternalGraphic *eg, std::size_t height, std::size_t &width)
	It generates the image pattern from the given Symbology Enconding External Graphic element. More...

Static Public Member Functions
static ExternalGraphicRendererManager &	getInstance ()
	It returns a reference to the singleton instance. More...

Protected Member Functions
	ExternalGraphicRendererManager ()
	It initializes the singleton instance of the external graphic renderer manager. More...

	~ExternalGraphicRendererManager ()
	Singleton destructor. More...

Private Attributes
std::vector < AbstractExternalGraphicRenderer * >	m_renderers
	The external graphic renderers in the manager. More...

Friends
class	te::common::Singleton< ExternalGraphicRendererManager >

Detailed Description

This is a singleton for managing all external graphic renderers instances available in the system.

If you want to render a external graphic, use commands like: te::color::RBGA** image = te::map::ExternalGraphicRendererManager::getInstance().render(eg, size);

See also: AbstractExternalGraphickRenderer

Definition at line 63 of file ExternalGraphicRendererManager.h.

Member Typedef Documentation

typedef ClassLevelLockingPolicy<::boost::lock_guard< ::boost::recursive_mutex > > te::common::ClassLevelLockable< ExternalGraphicRendererManager , ::boost::recursive_mutex , ::boost::lock_guard< ::boost::recursive_mutex > , ::boost::lock_guard< ::boost::recursive_mutex > >::LockRead

inherited

Definition at line 302 of file ThreadingPolicies.h.

typedef ClassLevelLockingPolicy<::boost::lock_guard< ::boost::recursive_mutex > > te::common::ClassLevelLockable< ExternalGraphicRendererManager , ::boost::recursive_mutex , ::boost::lock_guard< ::boost::recursive_mutex > , ::boost::lock_guard< ::boost::recursive_mutex > >::LockWrite

inherited

Definition at line 303 of file ThreadingPolicies.h.

typedef volatile ExternalGraphicRendererManager te::common::ClassLevelLockable< ExternalGraphicRendererManager , ::boost::recursive_mutex , ::boost::lock_guard< ::boost::recursive_mutex > , ::boost::lock_guard< ::boost::recursive_mutex > >::VolatileType

inherited

Definition at line 301 of file ThreadingPolicies.h.

Constructor & Destructor Documentation

te::map::ExternalGraphicRendererManager::ExternalGraphicRendererManager ( )

protected

It initializes the singleton instance of the external graphic renderer manager.

Definition at line 37 of file ExternalGraphicRendererManager.cpp.

te::map::ExternalGraphicRendererManager::~ExternalGraphicRendererManager ( )

protected

Singleton destructor.

Definition at line 41 of file ExternalGraphicRendererManager.cpp.

References te::common::FreeContents().

Member Function Documentation

void te::map::ExternalGraphicRendererManager::add ( AbstractExternalGraphicRenderer * renderer )

It adds a new external graphic renderer to the manager.

Parameters

renderer The new external graphic renderer that will be added on the manager.

Note: The manager will take the owership of the given external graphic renderer.

Definition at line 69 of file ExternalGraphicRendererManager.cpp.

static ExternalGraphicRendererManager & te::common::Singleton< ExternalGraphicRendererManager >::getInstance ( )

staticinherited

It returns a reference to the singleton instance.

Returns: A reference to the singleton instance.

Referenced by te::map::CanvasConfigurer::config(), te::qt::widgets::Module::initialize(), and te::qt::widgets::Terralib2Qwt().

te::color::RGBAColor ** te::map::ExternalGraphicRendererManager::render	(	const te::se::ExternalGraphic *	eg,
		std::size_t	height,
		std::size_t &	width
	)

It generates the image pattern from the given Symbology Enconding External Graphic element.

Parameters

eg	The Symbology Enconding External Graphic element that will be used as base to build the image pattern.
height	The height of image pattern that will be generated.
width	An output parameter that will be filled with the width of generated image pattern.

Returns: The RGBA image that represents the external graphic.

Note: This method will consult all registered external graphic renderers and the first that can process the given element will be used.; The caller will take the ownership of the returned pointer.

Exceptions

Exception It will throws an exception if the image pattern can not be generated.

Definition at line 46 of file ExternalGraphicRendererManager.cpp.

References TE_TR.

Referenced by te::map::CanvasConfigurer::config().