Interface for the LuaScriptModule class. More...

Inheritance diagram for CEGUI::LuaScriptModule:

Collaboration diagram for CEGUI::LuaScriptModule:

Public Member Functions
	LuaScriptModule ()
	Constructor for LuaScriptModule class which create a lua_State.

	LuaScriptModule (lua_State *state)
	Constructor for LuaScriptModule class which takes a lua_State. More...

	~LuaScriptModule ()
	Destructor for LuaScriptModule class.

void	executeScriptFile (const String &filename, const String &resourceGroup)
	Execute a script file. More...

void	executeScriptFile (const String &filename, const String &resourceGroup, const String &error_handler)
	Execute a script file. More...

void	executeScriptFile (const String &filename, const String &resourceGroup, const int error_handler)
	Execute a script file. More...

int	executeScriptGlobal (const String &function_name)
	Execute a scripted global function. The function should not take any parameters and should return an integer. More...

int	executeScriptGlobal (const String &function_name, const String &error_handler)
	Execute a scripted global function. The function should not take any parameters and should return an integer. More...

int	executeScriptGlobal (const String &function_name, const int error_handler)
	Execute a scripted global function. The function should not take any parameters and should return an integer. More...

bool	executeScriptedEventHandler (const String &handler_name, const EventArgs &e)
	Execute a scripted global 'event handler' function by looking it up by name. More...

bool	executeScriptedEventHandler (const String &handler_name, const EventArgs &e, const String &error_handler)
	Execute a scripted global 'event handler' function by looking it up by name. More...

bool	executeScriptedEventHandler (const String &handler_name, const EventArgs &e, const int error_handler)
	Execute a scripted global 'event handler' function by looking it up by name. More...

void	executeString (const String &str)
	Execute script code contained in the given CEGUI::String object. More...

void	executeString (const String &str, const String &error_handler)
	Execute script code contained in the given CEGUI::String object. More...

void	executeString (const String &str, const int error_handler)
	Execute script code contained in the given CEGUI::String object. More...

Event::Connection	subscribeEvent (EventSet *target, const String &name, const String &subscriber_name)
	Subscribes the named Event to a scripted funtion. More...

Event::Connection	subscribeEvent (EventSet *target, const String &name, const String &subscriber_name, const String &error_handler)
	Subscribes the named Event to a scripted funtion. More...

Event::Connection	subscribeEvent (EventSet *target, const String &name, const String &subscriber_name, const int error_handler)
	Subscribes the named Event to a scripted funtion. More...

Event::Connection	subscribeEvent (EventSet *target, const String &name, Event::Group group, const String &subscriber_name)
	Subscribes the specified group of the named Event to a scripted funtion. More...

Event::Connection	subscribeEvent (EventSet *target, const String &name, Event::Group group, const String &subscriber_name, const String &error_handler)
	Subscribes the specified group of the named Event to a scripted funtion. More...

Event::Connection	subscribeEvent (EventSet *target, const String &name, Event::Group group, const String &subscriber_name, const int error_handler)
	Subscribes the specified group of the named Event to a scripted funtion. More...

void	createBindings (void)
	Method called during system initialisation, prior to running any scripts via the ScriptModule, to enable the ScriptModule to perform any operations required to complete initialisation or binding of the script language to the gui system objects. More...

void	destroyBindings (void)
	Method called during system destruction, after all scripts have been run via the ScriptModule, to enable the ScriptModule to perform any operations required to cleanup bindings of the script language to the gui system objects, as set-up in the earlier createBindings call. More...

lua_State *	getLuaState (void) const
	Method used to get a pointer to the lua_State that the script module is attached to. More...

void	setDefaultPCallErrorHandler (const String &error_handler_function)
	Set the name of the lua function that will be passed as the error handler in calls to lua_pcall, unless an alternative is specified in some other function call. More...

void	setDefaultPCallErrorHandler (int function_reference)
	Set the function that will be passed as the error handler in calls to lua_pcall, unless an alternative is specified in some other function call. More...

const String &	getActivePCallErrorHandlerString () const
	Return the function name string of the active error handler function. More...

int	getActivePCallErrorHandlerReference () const
	return the lua registry index of the active error handler function. More...

Public Member Functions inherited from CEGUI::ScriptModule
	ScriptModule (void)
	Constructor for ScriptModule base class.

virtual	~ScriptModule (void)
	Destructor for ScriptModule base class.

const String &	getIdentifierString () const
	Return identification string for the ScriptModule. If the internal id string has not been set by the ScriptModule creator, a generic string of "Unknown scripting module" will be returned. More...

const String &	getLanguage () const
	Return an string which identifies the language of this module. /return String object holding a string that identifies the languge of the module

Additional Inherited Members
Static Public Member Functions inherited from CEGUI::ScriptModule
static void	setDefaultResourceGroup (const String &resourceGroup)
	Sets the default resource group to be used when loading script files. More...

static const String &	getDefaultResourceGroup ()
	Returns the default resource group used when loading script files. More...

Protected Attributes inherited from CEGUI::ScriptModule
String	d_identifierString
	String that holds some id information about the module.

String	d_language
	String that holds a string containing the languge of the scripting modue.

Static Protected Attributes inherited from CEGUI::ScriptModule
static String	d_defaultResourceGroup
	holds the default resource group ID for loading script files.

Detailed Description

Interface for the LuaScriptModule class.

Constructor & Destructor Documentation

CEGUI::LuaScriptModule::LuaScriptModule ( lua_State * state )

Constructor for LuaScriptModule class which takes a lua_State.

Parameters

state Pointer to the lua_State that the script module should attach to.

Member Function Documentation

void CEGUI::LuaScriptModule::createBindings ( void )

virtual

Method called during system initialisation, prior to running any scripts via the ScriptModule, to enable the ScriptModule to perform any operations required to complete initialisation or binding of the script language to the gui system objects.

Returns: Nothing.

Reimplemented from CEGUI::ScriptModule.

References CEGUI::Logger::logEvent().

void CEGUI::LuaScriptModule::destroyBindings ( void )

virtual

Method called during system destruction, after all scripts have been run via the ScriptModule, to enable the ScriptModule to perform any operations required to cleanup bindings of the script language to the gui system objects, as set-up in the earlier createBindings call.

Returns: Nothing.

Reimplemented from CEGUI::ScriptModule.

References CEGUI::Logger::logEvent().

bool CEGUI::LuaScriptModule::executeScriptedEventHandler	(	const String &	handler_name,
		const EventArgs &	e
	)

virtual

Execute a scripted global 'event handler' function by looking it up by name.

Parameters

handler_name	String object holding the name of the scripted handler function. If this string contains dots '.' it will be parsed as tables containing a function field. For example: 'mytable.subtable.func'
e	EventArgs based object that should be passed, by any appropriate means, to the scripted function.

Returns

true if the event was handled.
false if the event was not handled.

Implements CEGUI::ScriptModule.

bool CEGUI::LuaScriptModule::executeScriptedEventHandler	(	const String &	handler_name,
		const EventArgs &	e,
		const String &	error_handler
	)

Execute a scripted global 'event handler' function by looking it up by name.

Parameters

handler_name	String object holding the name of the scripted handler function. If this string contains dots '.' it will be parsed as tables containing a function field. For example: 'mytable.subtable.func'
e	EventArgs based object that should be passed, by any appropriate means, to the scripted function.
error_handler	String containing the name of the script fuction that will be called if an error occurs while executing the handler function. NB: This is the function passed as the error handler to lua_pcall.

Returns

true if the event was handled.
false if the event was not handled.

bool CEGUI::LuaScriptModule::executeScriptedEventHandler	(	const String &	handler_name,
		const EventArgs &	e,
		const int	error_handler
	)

Execute a scripted global 'event handler' function by looking it up by name.

Parameters

handler_name	String object holding the name of the scripted handler function. If this string contains dots '.' it will be parsed as tables containing a function field. For example: 'mytable.subtable.func'
e	EventArgs based object that should be passed, by any appropriate means, to the scripted function.
error_handler	integer value describing a lua registry reference to the function that will be called if an error occurs while executing the handler function. NB: This is the function passed as the error handler to lua_pcall.

Returns

true if the event was handled.
false if the event was not handled.

void CEGUI::LuaScriptModule::executeScriptFile	(	const String &	filename,
		const String &	resourceGroup
	)

virtual

Execute a script file.

Parameters

filename	String object holding the filename of the script file that is to be executed.
resourceGroup	Resource group idendifier to be passed to the ResourceProvider when loading the script file.

Implements CEGUI::ScriptModule.

void CEGUI::LuaScriptModule::executeScriptFile	(	const String &	filename,
		const String &	resourceGroup,
		const String &	error_handler
	)

Execute a script file.

Parameters

filename	String object holding the filename of the script file that is to be executed.
resourceGroup	Resource group idendifier to be passed to the ResourceProvider when loading the script file.
error_handler	String containing the name of the script fuction that will be called if an error occurs while executing the handler function. NB: This is the function passed as the error handler to lua_pcall.

void CEGUI::LuaScriptModule::executeScriptFile	(	const String &	filename,
		const String &	resourceGroup,
		const int	error_handler
	)

Execute a script file.

Parameters

filename	String object holding the filename of the script file that is to be executed.
resourceGroup	Resource group idendifier to be passed to the ResourceProvider when loading the script file.
error_handler	integer value describing a lua registry reference to the function that will be called if an error occurs while executing the handler function. NB: This is the function passed as the error handler to lua_pcall.

int CEGUI::LuaScriptModule::executeScriptGlobal ( const String & function_name )

virtual

Execute a scripted global function. The function should not take any parameters and should return an integer.

Parameters

function_name String object holding the name of the function, in the global script environment, that is to be executed.

Returns: The integer value returned from the script function.

Implements CEGUI::ScriptModule.

int CEGUI::LuaScriptModule::executeScriptGlobal	(	const String &	function_name,
		const String &	error_handler
	)

Execute a scripted global function. The function should not take any parameters and should return an integer.

Parameters

function_name	String object holding the name of the function, in the global script environment, that is to be executed.
error_handler	String containing the name of the script fuction that will be called if an error occurs while executing the handler function. NB: This is the function passed as the error handler to lua_pcall.

Returns: The integer value returned from the script function.

int CEGUI::LuaScriptModule::executeScriptGlobal	(	const String &	function_name,
		const int	error_handler
	)

Execute a scripted global function. The function should not take any parameters and should return an integer.

Parameters

function_name	String object holding the name of the function, in the global script environment, that is to be executed.
error_handler	integer value describing a lua registry reference to the function that will be called if an error occurs while executing the handler function. NB: This is the function passed as the error handler to lua_pcall.

Returns: The integer value returned from the script function.

void CEGUI::LuaScriptModule::executeString ( const String & str )

virtual

Execute script code contained in the given CEGUI::String object.

Parameters

str	String object holding the valid script code that should be executed.

Returns: Nothing.

Implements CEGUI::ScriptModule.

void CEGUI::LuaScriptModule::executeString	(	const String &	str,
		const String &	error_handler
	)

Execute script code contained in the given CEGUI::String object.

Parameters

str	String object holding the valid script code that should be executed.
error_handler	String containing the name of the script fuction that will be called if an error occurs while executing the handler function. NB: This is the function passed as the error handler to lua_pcall.

Returns: Nothing.

void CEGUI::LuaScriptModule::executeString	(	const String &	str,
		const int	error_handler
	)

Execute script code contained in the given CEGUI::String object.

Parameters

str	String object holding the valid script code that should be executed.
error_handler	integer value describing a lua registry reference to the function that will be called if an error occurs while executing the handler function. NB: This is the function passed as the error handler to lua_pcall.

Returns: Nothing.

int CEGUI::LuaScriptModule::getActivePCallErrorHandlerReference ( ) const

return the lua registry index of the active error handler function.

The 'active' error handler for the LuaScriptModule is either the
default as specified by calling setDefaultPCallErrorHandler, or
whatever might have been set up by a call to the internal
initErrorHandlerFunc function.

This may return a value previously set by the user, or the value as: bound internally by the script module for an error handler specified by function name.

Note: This function is really intended for use internally by other parts of the lua scripting support. Although it could be useful elsewhere for advanced uses, so long as you're careful!

Warning: You should never call luaL_unref on the value returned by this function unless you created tge reference in the first place, and even then only after having called setDefaultPCallErrorHandler passing LUA_NOREF.

References CEGUI::String::empty().

Referenced by subscribeEvent().

const String & CEGUI::LuaScriptModule::getActivePCallErrorHandlerString ( ) const

Return the function name string of the active error handler function.

The 'active' error handler for the LuaScriptModule is either the
default as specified by calling setDefaultPCallErrorHandler, or
whatever might have been set up by a call to the internal
initErrorHandlerFunc function.

Note: This function is really intended for use internally by other parts of the lua scripting support. Although it could be useful elsewhere for advanced uses, so long as you're careful!

References CEGUI::String::empty().

Referenced by subscribeEvent().

lua_State* CEGUI::LuaScriptModule::getLuaState ( void ) const

inline

Method used to get a pointer to the lua_State that the script module is attached to.

Returns: A pointer to the lua_State that the script module is attached to.

void CEGUI::LuaScriptModule::setDefaultPCallErrorHandler ( const String & error_handler_function )

Set the name of the lua function that will be passed as the error handler in calls to lua_pcall, unless an alternative is specified in some other function call.

Parameters

error_handler_function Name of the lua function to be called. This is looked up / bound on first usage.

void CEGUI::LuaScriptModule::setDefaultPCallErrorHandler ( int function_reference )

Set the function that will be passed as the error handler in calls to lua_pcall, unless an alternative is specified in some other function call.

Parameters

function_reference Lua function registry index of the function to be called.

References CEGUI::String::clear().

Event::Connection CEGUI::LuaScriptModule::subscribeEvent	(	EventSet *	target,
		const String &	name,
		const String &	subscriber_name
	)

virtual

Subscribes the named Event to a scripted funtion.

Parameters

target	The target EventSet for the subscription.
name	String object containing the name of the Event to subscribe to.
subscriber_name	String object containing the name of the script funtion that is to be subscribed to the Event.

Returns: Connection object that can be used to check the status of the Event connection and to disconnect (unsubscribe) from the Event.

Implements CEGUI::ScriptModule.

References getActivePCallErrorHandlerReference(), getActivePCallErrorHandlerString(), and CEGUI::EventSet::subscribeEvent().

Event::Connection CEGUI::LuaScriptModule::subscribeEvent	(	EventSet *	target,
		const String &	name,
		const String &	subscriber_name,
		const String &	error_handler
	)

Subscribes the named Event to a scripted funtion.

Parameters

target	The target EventSet for the subscription.
name	String object containing the name of the Event to subscribe to.
subscriber_name	String object containing the name of the script funtion that is to be subscribed to the Event.
error_handler	String containing the name of the script fuction that will be called if an error occurs while executing the handler function. NB: This is the function passed as the error handler to lua_pcall.

Returns: Connection object that can be used to check the status of the Event connection and to disconnect (unsubscribe) from the Event.

References CEGUI::EventSet::subscribeEvent().

Event::Connection CEGUI::LuaScriptModule::subscribeEvent	(	EventSet *	target,
		const String &	name,
		const String &	subscriber_name,
		const int	error_handler
	)

Subscribes the named Event to a scripted funtion.

Parameters

target	The target EventSet for the subscription.
name	String object containing the name of the Event to subscribe to.
subscriber_name	String object containing the name of the script funtion that is to be subscribed to the Event.
error_handler	integer value describing a lua registry reference to the function that will be called if an error occurs while executing the handler function. NB: This is the function passed as the error handler to lua_pcall.

Returns: Connection object that can be used to check the status of the Event connection and to disconnect (unsubscribe) from the Event.

References CEGUI::EventSet::subscribeEvent().

Event::Connection CEGUI::LuaScriptModule::subscribeEvent	(	EventSet *	target,
		const String &	name,
		Event::Group	group,
		const String &	subscriber_name
	)

virtual

Subscribes the specified group of the named Event to a scripted funtion.

Parameters

target	The target EventSet for the subscription.
name	String object containing the name of the Event to subscribe to.
group	Group which is to be subscribed to. Subscription groups are called in ascending order.
subscriber_name	String object containing the name of the script funtion that is to be subscribed to the Event.

Returns: Connection object that can be used to check the status of the Event connection and to disconnect (unsubscribe) from the Event.

Implements CEGUI::ScriptModule.

References getActivePCallErrorHandlerReference(), getActivePCallErrorHandlerString(), and CEGUI::EventSet::subscribeEvent().

Event::Connection CEGUI::LuaScriptModule::subscribeEvent	(	EventSet *	target,
		const String &	name,
		Event::Group	group,
		const String &	subscriber_name,
		const String &	error_handler
	)

Subscribes the specified group of the named Event to a scripted funtion.

Parameters

target	The target EventSet for the subscription.
name	String object containing the name of the Event to subscribe to.
group	Group which is to be subscribed to. Subscription groups are called in ascending order.
subscriber_name	String object containing the name of the script funtion that is to be subscribed to the Event.
error_handler	String containing the name of the script fuction that will be called if an error occurs while executing the handler function. NB: This is the function passed as the error handler to lua_pcall.

Returns: Connection object that can be used to check the status of the Event connection and to disconnect (unsubscribe) from the Event.

References CEGUI::EventSet::subscribeEvent().

Event::Connection CEGUI::LuaScriptModule::subscribeEvent	(	EventSet *	target,
		const String &	name,
		Event::Group	group,
		const String &	subscriber_name,
		const int	error_handler
	)

Subscribes the specified group of the named Event to a scripted funtion.

Parameters

target	The target EventSet for the subscription.
name	String object containing the name of the Event to subscribe to.
group	Group which is to be subscribed to. Subscription groups are called in ascending order.
subscriber_name	String object containing the name of the script funtion that is to be subscribed to the Event.
error_handler	integer value describing a lua registry reference to the function that will be called if an error occurs while executing the handler function. NB: This is the function passed as the error handler to lua_pcall.

Returns: Connection object that can be used to check the status of the Event connection and to disconnect (unsubscribe) from the Event.

References CEGUI::EventSet::subscribeEvent().

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation