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# Ogre::SceneManagerEnumerator Class Reference

Enumerates the SceneManager classes available to applications. More...

`#include <OgreSceneManagerEnumerator.h>`

Inheritance diagram for Ogre::SceneManagerEnumerator:
[legend]

List of all members.

## Public Types
typedef std::map < String, SceneManager * > | Instances
| Scene manager instances, indexed by instance name.
typedef std::vector < const SceneManagerMetaData * > | MetaDataList
| List of available scene manager types as meta data.
typedef ConstVectorIterator < MetaDataList > | MetaDataIterator
typedef MapIterator < Instances > | SceneManagerIterator
## Public Member Functions
| SceneManagerEnumerator ()
| ~SceneManagerEnumerator ()
void | addFactory (SceneManagerFactory *fact)
| Register a new SceneManagerFactory.
void | removeFactory (SceneManagerFactory *fact)
| Remove a SceneManagerFactory.
const SceneManagerMetaData * | getMetaData (const String &typeName) const
| Get more information about a given type of SceneManager.
MetaDataIterator | getMetaDataIterator (void) const
| Iterate over all types of SceneManager available for construction, providing some information about each one.
SceneManager * | createSceneManager (const String &typeName, const String &instanceName=StringUtil::BLANK)
| Create a SceneManager instance of a given type.
SceneManager * | createSceneManager (SceneTypeMask typeMask, const String &instanceName=StringUtil::BLANK)
| Create a SceneManager instance based on scene type support.
void | destroySceneManager (SceneManager *sm)
| Destroy an instance of a SceneManager.
SceneManager * | getSceneManager (const String &instanceName) const
| Get an existing SceneManager instance that has already been created, identified by the instance name.
SceneManagerIterator | getSceneManagerIterator (void)
| Get an iterator over all the existing SceneManager instances.
void | setRenderSystem (RenderSystem *rs)
| Notifies all SceneManagers of the destination rendering system.
void | shutdownAll (void)
| Utility method to control shutdown of the managers.
## Static Public Member Functions
static SceneManagerEnumerator & | getSingleton (void)
| Override standard Singleton retrieval.
static SceneManagerEnumerator * | getSingletonPtr (void)
| Override standard Singleton retrieval.
## Static Protected Attributes
static T * | ms_Singleton
## Private Types
typedef std::list < SceneManagerFactory * > | Factories
| Scene manager factories.
## Private Attributes
Factories | mFactories
Instances | mInstances
MetaDataList | mMetaDataList
| Stored separately to allow iteration.
DefaultSceneManagerFactory | mDefaultFactory
| Factory for default scene manager.
unsigned long | mInstanceCreateCount
| Count of creations for auto-naming.
RenderSystem * | mCurrentRenderSystem
| Currently assigned render system.

## Detailed Description

Enumerates the SceneManager classes available to applications.

Remarks:
  As described in the SceneManager class, SceneManagers are responsible for organising the scene and issuing rendering commands to the RenderSystem. Certain scene types can benefit from different rendering approaches, and it is intended that subclasses will be created to special case this.

  In order to give applications easy access to these implementations, this class has a number of methods to create or retrieve a SceneManager which is appropriate to the scene type.

  SceneManagers are created by SceneManagerFactory instances. New factories for new types of SceneManager can be registered with this class to make them available to clients.

  Note that you can still plug in your own custom SceneManager without using a factory, should you choose, it's just not as flexible that way. Just instantiate your own SceneManager manually and use it directly.

Definition at line 82 of file OgreSceneManagerEnumerator.h.

## Member Typedef Documentation

typedef std::map<String, SceneManager*> Ogre::SceneManagerEnumerator::Instances

Scene manager instances, indexed by instance name.

Definition at line 86 of file OgreSceneManagerEnumerator.h.

typedef std::vector<const SceneManagerMetaData*> Ogre::SceneManagerEnumerator::MetaDataList

List of available scene manager types as meta data.

Definition at line 88 of file OgreSceneManagerEnumerator.h.

typedef std::list<SceneManagerFactory*> Ogre::SceneManagerEnumerator::Factories`[private]`

Scene manager factories.

Definition at line 91 of file OgreSceneManagerEnumerator.h.

typedef ConstVectorIterator<MetaDataList> Ogre::SceneManagerEnumerator::MetaDataIterator

Definition at line 129 of file OgreSceneManagerEnumerator.h.

typedef MapIterator<Instances> Ogre::SceneManagerEnumerator::SceneManagerIterator

Definition at line 173 of file OgreSceneManagerEnumerator.h.

## Constructor & Destructor Documentation

Ogre::SceneManagerEnumerator::SceneManagerEnumerator | ( |  | ) |

Ogre::SceneManagerEnumerator::~SceneManagerEnumerator | ( |  | ) |

## Member Function Documentation

void Ogre::SceneManagerEnumerator::addFactory | ( | SceneManagerFactory * | fact | ) |

Register a new SceneManagerFactory.

Remarks:
  Plugins should call this to register as new SceneManager providers.

void Ogre::SceneManagerEnumerator::removeFactory | ( | SceneManagerFactory * | fact | ) |

Remove a SceneManagerFactory.

const SceneManagerMetaData* Ogre::SceneManagerEnumerator::getMetaData | ( | const String & | typeName | ) | const

Get more information about a given type of SceneManager.

Remarks:
  The metadata returned tells you a few things about a given type of SceneManager, which can be created using a factory that has been registered already.

Parameters:

  | typeName | The type name of the SceneManager you want to enquire on. If you don't know the typeName already, you can iterate over the metadata for all types using getMetaDataIterator.

MetaDataIterator Ogre::SceneManagerEnumerator::getMetaDataIterator | ( | void |  | ) | const

Iterate over all types of SceneManager available for construction, providing some information about each one.

SceneManager* Ogre::SceneManagerEnumerator::createSceneManager | ( | const String & | typeName,
|  | const String & | instanceName = `StringUtil::BLANK` |
| ) |  |  |

Create a SceneManager instance of a given type.

Remarks:
  You can use this method to create a SceneManager instance of a given specific type. You may know this type already, or you may have discovered it by looking at the results from getMetaDataIterator.

Note:
  This method throws an exception if the named type is not found.

Parameters:

  | typeName | String identifying a unique SceneManager type
  | instanceName | Optional name to given the new instance that is created. If you leave this blank, an auto name will be assigned.

SceneManager* Ogre::SceneManagerEnumerator::createSceneManager | ( | SceneTypeMask | typeMask,
|  | const String & | instanceName = `StringUtil::BLANK` |
| ) |  |  |

Create a SceneManager instance based on scene type support.

Remarks:
  Creates an instance of a SceneManager which supports the scene types identified in the parameter. If more than one type of SceneManager has been registered as handling that combination of scene types, in instance of the last one registered is returned.

Note:
  This method always succeeds, if a specific scene manager is not found, the default implementation is always returned.

Parameters:

  | typeMask | A mask containing one or more SceneType flags
  | instanceName | Optional name to given the new instance that is created. If you leave this blank, an auto name will be assigned.

void Ogre::SceneManagerEnumerator::destroySceneManager | ( | SceneManager * | sm | ) |

Destroy an instance of a SceneManager.

SceneManager* Ogre::SceneManagerEnumerator::getSceneManager | ( | const String & | instanceName | ) | const

Get an existing SceneManager instance that has already been created, identified by the instance name.

Parameters:

  | instanceName | The name of the instance to retrieve.

SceneManagerIterator Ogre::SceneManagerEnumerator::getSceneManagerIterator | ( | void |  | ) |

Get an iterator over all the existing SceneManager instances.

void Ogre::SceneManagerEnumerator::setRenderSystem | ( | RenderSystem * | rs | ) |

Notifies all SceneManagers of the destination rendering system.

void Ogre::SceneManagerEnumerator::shutdownAll | ( | void |  | ) |

Utility method to control shutdown of the managers.

static SceneManagerEnumerator& Ogre::SceneManagerEnumerator::getSingleton | ( | void |  | ) | `[static]`

Override standard Singleton retrieval.

Remarks:
  Why do we do this? Well, it's because the Singleton implementation is in a .h file, which means it gets compiled into anybody who includes it. This is needed for the Singleton template to work, but we actually only want it compiled into the implementation of the class based on the Singleton, not all of them. If we don't change this, we get link errors when trying to use the Singleton-based class from an outside dll.

  This method just delegates to the template version anyway, but the implementation stays in this single compilation unit, preventing link errors.

Reimplemented from Ogre::Singleton< T >.

static SceneManagerEnumerator* Ogre::SceneManagerEnumerator::getSingletonPtr | ( | void |  | ) | `[static]`

Override standard Singleton retrieval.

Remarks:
  Why do we do this? Well, it's because the Singleton implementation is in a .h file, which means it gets compiled into anybody who includes it. This is needed for the Singleton template to work, but we actually only want it compiled into the implementation of the class based on the Singleton, not all of them. If we don't change this, we get link errors when trying to use the Singleton-based class from an outside dll.

  This method just delegates to the template version anyway, but the implementation stays in this single compilation unit, preventing link errors.

Reimplemented from Ogre::Singleton< T >.

## Member Data Documentation

Factories Ogre::SceneManagerEnumerator::mFactories`[private]`

Definition at line 92 of file OgreSceneManagerEnumerator.h.

Instances Ogre::SceneManagerEnumerator::mInstances`[private]`

Definition at line 93 of file OgreSceneManagerEnumerator.h.

MetaDataList Ogre::SceneManagerEnumerator::mMetaDataList`[private]`

Stored separately to allow iteration.

Definition at line 95 of file OgreSceneManagerEnumerator.h.

DefaultSceneManagerFactory Ogre::SceneManagerEnumerator::mDefaultFactory`[private]`

Factory for default scene manager.

Definition at line 97 of file OgreSceneManagerEnumerator.h.

unsigned long Ogre::SceneManagerEnumerator::mInstanceCreateCount`[private]`

Count of creations for auto-naming.

Definition at line 99 of file OgreSceneManagerEnumerator.h.

RenderSystem* Ogre::SceneManagerEnumerator::mCurrentRenderSystem`[private]`

Currently assigned render system.

Definition at line 101 of file OgreSceneManagerEnumerator.h.

template<typename T>

T* Ogre::Singleton< T >::ms_Singleton`[static, protected, inherited]`

Definition at line 61 of file OgreSingleton.h.

Referenced by Ogre::Singleton< Ogre::FontManager >::getSingleton(), Ogre::Singleton< Ogre::FontManager >::getSingletonPtr(), Ogre::Singleton< Ogre::FontManager >::Singleton(), and Ogre::Singleton< Ogre::FontManager >::~Singleton().

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

- OgreSceneManagerEnumerator.h

Copyright © 2000-2005 by The OGRE Team
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Mon Jun 16 12:53:18 2008