Document::ChangePropertyDelta< Identifier, Data > Class Template Reference

Generic DocumentDelta for changing a property without adding or deleting data. More...

#include <ChangePropertyDelta.h>

Inheritance diagram for Document::ChangePropertyDelta< Identifier, Data >:

List of all members.

Public Member Functions
	ChangePropertyDelta (Identifier identifier, Data data)
	Command changes the information found by Identifier to Data.
virtual void	apply (Track::Track &track)
	Perform the associated reverable action on the track.
virtual void	unapply (Track::Track &track)
	Reverse the action.
Protected Attributes
Identifier	identifier
Data	new_data
Data	old_data

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Detailed Description

template<class Identifier, class Data>
class Document::ChangePropertyDelta< Identifier, Data >

Generic DocumentDelta for changing a property without adding or deleting data.

Identifier A class that finds an editable property. Data The class of the editable property.

Definition at line 50 of file ChangePropertyDelta.h.

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Constructor & Destructor Documentation

template<class Identifier, class Data>

Document::ChangePropertyDelta< Identifier, Data >::ChangePropertyDelta	(	Identifier	identifier,
		Data	data
	)			[inline]

Command changes the information found by Identifier to Data.

Parameters:

	identifier	Object that finds the data that will be changed. It must behave like a PropertyDeltaIdentifier, but does not need to inherit from it.
	data	The new replacement to the data specified by identifier.

Definition at line 60 of file ChangePropertyDelta.h.

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Member Function Documentation

template<class Identifier, class Data>

virtual void Document::ChangePropertyDelta< Identifier, Data >::apply

(

Track::Track &

track

)

[inline, virtual]

Perform the associated reverable action on the track.

Parameters:

track

The track to apply the changes to.

Implements Document::DocumentDelta.

Definition at line 65 of file ChangePropertyDelta.h.

template<class Identifier, class Data>

virtual void Document::ChangePropertyDelta< Identifier, Data >::unapply

(

Track::Track &

track

)

[inline, virtual]

Reverse the action.

This will only be called when the track is in the same state having just called

 apply(track) 

, and must take the track back to the state it was in before calling apply.

Parameters:

track

The track to apply the changes to.

Implements Document::DocumentDelta.

Definition at line 70 of file ChangePropertyDelta.h.

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Member Data Documentation

template<class Identifier, class Data>

Identifier Document::ChangePropertyDelta< Identifier, Data >::identifier [protected]

Definition at line 75 of file ChangePropertyDelta.h.

template<class Identifier, class Data>

Data Document::ChangePropertyDelta< Identifier, Data >::new_data [protected]

Definition at line 76 of file ChangePropertyDelta.h.

template<class Identifier, class Data>

Data Document::ChangePropertyDelta< Identifier, Data >::old_data [protected]

Definition at line 77 of file ChangePropertyDelta.h.

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

• libtrack/document/ChangePropertyDelta.h

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