OGRE  1.12.4
Object-Oriented Graphics Rendering Engine
Ogre::PageManager Class Reference

The PageManager is the entry point through which you load all PagedWorld instances, and the place where PageStrategy instances and factory classes are registered to customise the paging behaviour. More...

#include <OgrePageManager.h>

+ Inheritance diagram for Ogre::PageManager:

Public Types

typedef std::vector< Camera * > CameraList
 
typedef std::map< String, PageContentCollectionFactory * > ContentCollectionFactoryMap
 
typedef std::map< String, PageContentFactory * > ContentFactoryMap
 
typedef std::map< String, PageStrategy * > StrategyMap
 
typedef std::map< String, PagedWorld * > WorldMap
 
typedef std::map< String, PagedWorldSectionFactory * > WorldSectionFactoryMap
 

Public Member Functions

 PageManager ()
 
virtual ~PageManager ()
 
virtual bool _loadProceduralPage (Page *page, PagedWorldSection *section)
 Give a provider the opportunity to prepare page content procedurally. More...
 
virtual bool _prepareProceduralPage (Page *page, PagedWorldSection *section)
 Give a provider the opportunity to prepare page content procedurally. More...
 
StreamSerialiser_readPageStream (PageID pageID, PagedWorldSection *section)
 Get a serialiser set up to read Page data for the given PageID. More...
 
StreamSerialiser_readWorldStream (const String &filename)
 Get a serialiser set up to read PagedWorld data for the given world name. More...
 
virtual bool _unloadProceduralPage (Page *page, PagedWorldSection *section)
 Give a manager the opportunity to unload page content procedurally. More...
 
virtual bool _unprepareProceduralPage (Page *page, PagedWorldSection *section)
 Give a manager the opportunity to unprepare page content procedurally. More...
 
StreamSerialiser_writePageStream (PageID pageID, PagedWorldSection *section)
 Get a serialiser set up to write Page data for the given PageID. More...
 
StreamSerialiser_writeWorldStream (const String &filename)
 Get a serialiser set up to write PagedWorld data. More...
 
void addCamera (Camera *c)
 Tells the paging system to start tracking a given camera. More...
 
void addContentCollectionFactory (PageContentCollectionFactory *f)
 Add a new PageContentCollectionFactory implementation. More...
 
void addContentFactory (PageContentFactory *f)
 Add a new PageContentFactory implementation. More...
 
void addStrategy (PageStrategy *strategy)
 Add a new PageStrategy implementation. More...
 
void addWorldSectionFactory (PagedWorldSectionFactory *f)
 Add a new PagedWorldSectionFactory implementation. More...
 
PageContentcreateContent (const String &typeName)
 Create a new instance of PageContent using the registered factories. More...
 
PageContentCollectioncreateContentCollection (const String &typeName)
 Create a new instance of PageContentCollection using the registered factories. More...
 
PagedWorldcreateWorld (const String &name=BLANKSTRING)
 Create a new PagedWorld instance. More...
 
PagedWorldSectioncreateWorldSection (const String &typeName, const String &name, PagedWorld *parent, SceneManager *sm)
 Create a new instance of PagedWorldSection using the registered factories. More...
 
void destroyContent (PageContent *c)
 Destroy an instance of PageContent. More...
 
void destroyContentCollection (PageContentCollection *coll)
 Destroy an instance of PageContentCollection. More...
 
void destroyWorld (const String &name)
 Destroy a world. More...
 
void destroyWorld (PagedWorld *world)
 Destroy a world. More...
 
void destroyWorldSection (PagedWorldSection *s)
 Destroy an instance of PagedWorldSection. More...
 
const CameraListgetCameraList () const
 Returns a list of cameras being tracked. More...
 
const ContentCollectionFactoryMapgetContentCollectionFactories () const
 Get a reference to the registered strategies. More...
 
PageContentCollectionFactorygetContentCollectionFactory (const String &name)
 Get a PageContentCollectionFactory. More...
 
const ContentFactoryMapgetContentFactories () const
 Get a reference to the registered strategies. More...
 
PageContentFactorygetContentFactory (const String &name)
 Get a PageContentFactory. More...
 
uint8 getDebugDisplayLevel () const
 Get the debug display level. More...
 
PageProvidergetPageProvider () const
 Get the PageProvider which can provide streams for any Page. More...
 
const StringgetPageResourceGroup () const
 Get the resource group that will be used to read/write files when the default load routines are used. More...
 
bool getPagingOperationsEnabled () const
 Get whether paging operations are currently allowed to happen. More...
 
const StrategyMapgetStrategies () const
 Get a reference to the registered strategies. More...
 
PageStrategygetStrategy (const String &name)
 Get a PageStrategy. More...
 
PagedWorldgetWorld (const String &name)
 Get a named world. More...
 
const WorldMapgetWorlds () const
 Get a reference to the worlds that are currently loaded. More...
 
const WorldSectionFactoryMapgetWorldSectionFactories () const
 Get a reference to the registered strategies. More...
 
PagedWorldSectionFactorygetWorldSectionFactory (const String &name)
 Get a PagedWorldSectionFactory. More...
 
bool hasCamera (Camera *c) const
 Returns whether or not a given camera is being watched by the paging system. More...
 
PagedWorldloadWorld (const String &filename, const String &name=BLANKSTRING)
 Load a new PagedWorld from a file. More...
 
PagedWorldloadWorld (const DataStreamPtr &stream, const String &name=BLANKSTRING)
 Load a new PagedWorld from a stream. More...
 
void removeCamera (Camera *c)
 Tells the paging system to stop tracking a given camera. More...
 
void removeContentCollectionFactory (PageContentCollectionFactory *f)
 Remove a PageContentCollectionFactory implementation. More...
 
void removeContentFactory (PageContentFactory *f)
 Remove a PageContentFactory implementation. More...
 
void removeStrategy (PageStrategy *strategy)
 Remove a PageStrategy implementation. More...
 
void removeWorldSectionFactory (PagedWorldSectionFactory *f)
 Remove a PagedWorldSectionFactory implementation. More...
 
void saveWorld (PagedWorld *world, const String &filename)
 Save a PagedWorld instance to a file. More...
 
void saveWorld (PagedWorld *world, const DataStreamPtr &stream)
 Save a PagedWorld instance to a file. More...
 
void setDebugDisplayLevel (uint8 lvl)
 Set the debug display level. More...
 
void setPageProvider (PageProvider *provider)
 Set the PageProvider which can provide streams for any Page. More...
 
void setPageResourceGroup (const String &g)
 Set the resource group that will be used to read/write files when the default load routines are used. More...
 
void setPagingOperationsEnabled (bool enabled)
 Pause or unpause all paging operations. More...
 

Detailed Description

The PageManager is the entry point through which you load all PagedWorld instances, and the place where PageStrategy instances and factory classes are registered to customise the paging behaviour.

Remarks
To get started, the minimum you need is a PagedWorld with at least one PagedWorldSection within it, and at least one Camera being tracked (see addCamera).

Member Typedef Documentation

◆ WorldMap

◆ StrategyMap

◆ ContentCollectionFactoryMap

◆ ContentFactoryMap

◆ WorldSectionFactoryMap

◆ CameraList

typedef std::vector<Camera*> Ogre::PageManager::CameraList

Constructor & Destructor Documentation

◆ PageManager()

Ogre::PageManager::PageManager ( )

◆ ~PageManager()

virtual Ogre::PageManager::~PageManager ( )
virtual

Member Function Documentation

◆ createWorld()

PagedWorld* Ogre::PageManager::createWorld ( const String name = BLANKSTRING)

Create a new PagedWorld instance.

Parameters
nameOptionally give a name to the world (if no name is given, one will be generated).

◆ destroyWorld() [1/2]

void Ogre::PageManager::destroyWorld ( const String name)

Destroy a world.

◆ destroyWorld() [2/2]

void Ogre::PageManager::destroyWorld ( PagedWorld world)

Destroy a world.

◆ loadWorld() [1/2]

PagedWorld* Ogre::PageManager::loadWorld ( const String filename,
const String name = BLANKSTRING 
)

Load a new PagedWorld from a file.

Parameters
filenameThe name of the file to load (standard is .world)
nameOptionally give a name to the world (if no name is given, one will be generated).

◆ loadWorld() [2/2]

PagedWorld* Ogre::PageManager::loadWorld ( const DataStreamPtr stream,
const String name = BLANKSTRING 
)

Load a new PagedWorld from a stream.

Parameters
streamA stream from which to load the world data
nameOptionally give a name to the world (if no name is given, one will be generated).

◆ saveWorld() [1/2]

void Ogre::PageManager::saveWorld ( PagedWorld world,
const String filename 
)

Save a PagedWorld instance to a file.

Parameters
worldThe world to be saved
filenameThe filename to save the data to

◆ saveWorld() [2/2]

void Ogre::PageManager::saveWorld ( PagedWorld world,
const DataStreamPtr stream 
)

Save a PagedWorld instance to a file.

Parameters
worldThe world to be saved
streamThe stream to save the data to

◆ getWorld()

PagedWorld* Ogre::PageManager::getWorld ( const String name)

Get a named world.

Parameters
nameThe name of the world (not a filename, the identifying name)
Returns
The world, or null if the world doesn't exist.

◆ getWorlds()

const WorldMap& Ogre::PageManager::getWorlds ( ) const
inline

Get a reference to the worlds that are currently loaded.

◆ addStrategy()

void Ogre::PageManager::addStrategy ( PageStrategy strategy)

Add a new PageStrategy implementation.

Remarks
The caller remains resonsible for destruction of this instance.

◆ removeStrategy()

void Ogre::PageManager::removeStrategy ( PageStrategy strategy)

Remove a PageStrategy implementation.

◆ getStrategy()

PageStrategy* Ogre::PageManager::getStrategy ( const String name)

Get a PageStrategy.

Parameters
nameThe name of the strategy to retrieve
Returns
Pointer to a PageStrategy, or null if the strategy was not found.

◆ getStrategies()

const StrategyMap& Ogre::PageManager::getStrategies ( ) const

Get a reference to the registered strategies.

◆ addContentCollectionFactory()

void Ogre::PageManager::addContentCollectionFactory ( PageContentCollectionFactory f)

Add a new PageContentCollectionFactory implementation.

Remarks
The caller remains resonsible for destruction of this instance.

◆ removeContentCollectionFactory()

void Ogre::PageManager::removeContentCollectionFactory ( PageContentCollectionFactory f)

Remove a PageContentCollectionFactory implementation.

◆ getContentCollectionFactory()

PageContentCollectionFactory* Ogre::PageManager::getContentCollectionFactory ( const String name)

Get a PageContentCollectionFactory.

Parameters
nameThe name of the factory to retrieve
Returns
Pointer to a PageContentCollectionFactory, or null if the ContentCollection was not found.

◆ createContentCollection()

PageContentCollection* Ogre::PageManager::createContentCollection ( const String typeName)

Create a new instance of PageContentCollection using the registered factories.

Parameters
typeNameThe name of the type of collection to create

◆ destroyContentCollection()

void Ogre::PageManager::destroyContentCollection ( PageContentCollection coll)

Destroy an instance of PageContentCollection.

◆ getContentCollectionFactories()

const ContentCollectionFactoryMap& Ogre::PageManager::getContentCollectionFactories ( ) const

Get a reference to the registered strategies.

◆ addContentFactory()

void Ogre::PageManager::addContentFactory ( PageContentFactory f)

Add a new PageContentFactory implementation.

Remarks
The caller remains resonsible for destruction of this instance.

◆ removeContentFactory()

void Ogre::PageManager::removeContentFactory ( PageContentFactory f)

Remove a PageContentFactory implementation.

◆ getContentFactory()

PageContentFactory* Ogre::PageManager::getContentFactory ( const String name)

Get a PageContentFactory.

Parameters
nameThe name of the factory to retrieve
Returns
Pointer to a PageContentFactory, or null if the Content was not found.

◆ getContentFactories()

const ContentFactoryMap& Ogre::PageManager::getContentFactories ( ) const

Get a reference to the registered strategies.

◆ createContent()

PageContent* Ogre::PageManager::createContent ( const String typeName)

Create a new instance of PageContent using the registered factories.

Parameters
typeNameThe name of the type of content to create

◆ destroyContent()

void Ogre::PageManager::destroyContent ( PageContent c)

Destroy an instance of PageContent.

◆ addWorldSectionFactory()

void Ogre::PageManager::addWorldSectionFactory ( PagedWorldSectionFactory f)

Add a new PagedWorldSectionFactory implementation.

Remarks
The caller remains resonsible for destruction of this instance.

◆ removeWorldSectionFactory()

void Ogre::PageManager::removeWorldSectionFactory ( PagedWorldSectionFactory f)

Remove a PagedWorldSectionFactory implementation.

◆ getWorldSectionFactory()

PagedWorldSectionFactory* Ogre::PageManager::getWorldSectionFactory ( const String name)

Get a PagedWorldSectionFactory.

Parameters
nameThe name of the factory to retrieve
Returns
Pointer to a PagedWorldSectionFactory, or null if the WorldSection was not found.

◆ createWorldSection()

PagedWorldSection* Ogre::PageManager::createWorldSection ( const String typeName,
const String name,
PagedWorld parent,
SceneManager sm 
)

Create a new instance of PagedWorldSection using the registered factories.

Parameters
typeNameThe name of the type of collection to create
nameThe instance name
parentThe parent world
smThe SceneManager to use (can be null if this is to be loaded)

◆ destroyWorldSection()

void Ogre::PageManager::destroyWorldSection ( PagedWorldSection s)

Destroy an instance of PagedWorldSection.

◆ getWorldSectionFactories()

const WorldSectionFactoryMap& Ogre::PageManager::getWorldSectionFactories ( ) const

Get a reference to the registered strategies.

◆ setPageProvider()

void Ogre::PageManager::setPageProvider ( PageProvider provider)
inline

Set the PageProvider which can provide streams for any Page.

Remarks
This is the top-level way that you can direct how Page data is loaded. When data for a Page is requested for a PagedWorldSection, the following sequence of classes will be checked to see if they have a provider willing to supply the stream: PagedWorldSection, PagedWorld, PageManager. If none of these do, then the default behaviour is to look for a file called worldname_sectionname_pageID.page.
Note
The caller remains responsible for the destruction of the provider.

◆ getPageProvider()

PageProvider* Ogre::PageManager::getPageProvider ( ) const
inline

Get the PageProvider which can provide streams for any Page.

◆ _prepareProceduralPage()

virtual bool Ogre::PageManager::_prepareProceduralPage ( Page page,
PagedWorldSection section 
)
virtual

Give a provider the opportunity to prepare page content procedurally.

Remarks
You should not call this method directly. This call may well happen in a separate thread so it should not access GPU resources, use _loadProceduralPage for that
Returns
true if the page was populated, false otherwise

◆ _loadProceduralPage()

virtual bool Ogre::PageManager::_loadProceduralPage ( Page page,
PagedWorldSection section 
)
virtual

Give a provider the opportunity to prepare page content procedurally.

Remarks
You should not call this method directly. This call will happen in the main render thread so it can access GPU resources. Use _prepareProceduralPage for background preparation.
Returns
true if the page was populated, false otherwise

◆ _unloadProceduralPage()

virtual bool Ogre::PageManager::_unloadProceduralPage ( Page page,
PagedWorldSection section 
)
virtual

Give a manager the opportunity to unload page content procedurally.

Remarks
You should not call this method directly. This call will happen in the main render thread so it can access GPU resources. Use _unprepareProceduralPage for background preparation.
Returns
true if the page was populated, false otherwise

◆ _unprepareProceduralPage()

virtual bool Ogre::PageManager::_unprepareProceduralPage ( Page page,
PagedWorldSection section 
)
virtual

Give a manager the opportunity to unprepare page content procedurally.

Remarks
You should not call this method directly. This call may well happen in a separate thread so it should not access GPU resources, use _unloadProceduralPage for that
Returns
true if the page was unpopulated, false otherwise

◆ _readPageStream()

StreamSerialiser* Ogre::PageManager::_readPageStream ( PageID  pageID,
PagedWorldSection section 
)

Get a serialiser set up to read Page data for the given PageID.

Parameters
pageIDThe ID of the page being requested
sectionThe parent section to which this page will belong
Remarks
The StreamSerialiser returned is the responsibility of the caller to delete.

◆ _writePageStream()

StreamSerialiser* Ogre::PageManager::_writePageStream ( PageID  pageID,
PagedWorldSection section 
)

Get a serialiser set up to write Page data for the given PageID.

Parameters
pageIDThe ID of the page being requested
sectionThe parent section to which this page will belong
Remarks
The StreamSerialiser returned is the responsibility of the caller to delete.

◆ _readWorldStream()

StreamSerialiser* Ogre::PageManager::_readWorldStream ( const String filename)

Get a serialiser set up to read PagedWorld data for the given world name.

Remarks
The StreamSerialiser returned is the responsibility of the caller to delete.

◆ _writeWorldStream()

StreamSerialiser* Ogre::PageManager::_writeWorldStream ( const String filename)

Get a serialiser set up to write PagedWorld data.

Remarks
The StreamSerialiser returned is the responsibility of the caller to delete.

◆ getPageResourceGroup()

const String& Ogre::PageManager::getPageResourceGroup ( ) const
inline

Get the resource group that will be used to read/write files when the default load routines are used.

◆ setPageResourceGroup()

void Ogre::PageManager::setPageResourceGroup ( const String g)
inline

Set the resource group that will be used to read/write files when the default load routines are used.

◆ addCamera()

void Ogre::PageManager::addCamera ( Camera c)

Tells the paging system to start tracking a given camera.

Remarks
In order for the paging system to function it needs to know which Cameras to track. You may not want to have all your cameras affect the paging system, so just add the cameras you want it to keep track of here.

◆ removeCamera()

void Ogre::PageManager::removeCamera ( Camera c)

Tells the paging system to stop tracking a given camera.

◆ hasCamera()

bool Ogre::PageManager::hasCamera ( Camera c) const

Returns whether or not a given camera is being watched by the paging system.

◆ getCameraList()

const CameraList& Ogre::PageManager::getCameraList ( ) const

Returns a list of cameras being tracked.

◆ setDebugDisplayLevel()

void Ogre::PageManager::setDebugDisplayLevel ( uint8  lvl)
inline

Set the debug display level.

Remarks
This setting controls how much debug information is displayed in the scene. The exact interpretation of this value depends on the PageStrategy you're using, and whether the PageContent decides to also display debug information. Generally speaking, 0 means no debug display, 1 means simple debug display (usually the PageStrategy) and anything more than that is up to the classes involved.

◆ getDebugDisplayLevel()

uint8 Ogre::PageManager::getDebugDisplayLevel ( ) const
inline

Get the debug display level.

◆ setPagingOperationsEnabled()

void Ogre::PageManager::setPagingOperationsEnabled ( bool  enabled)
inline

Pause or unpause all paging operations.

Remarks
Using this method you can stop pages being loaded or unloaded for a period of time, 'freezing' the current page state as it is.
Parameters
enabledTrue to proceed with normal paging operations, false to pause.

◆ getPagingOperationsEnabled()

bool Ogre::PageManager::getPagingOperationsEnabled ( ) const
inline

Get whether paging operations are currently allowed to happen.


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