Document::StackableDelta Class Reference

A DocumentDelta that will combine the effects of other DocumentDeltas. More...

#include <StackableDelta.h>

Inheritance diagram for Document::StackableDelta:

List of all members.

Public Member Functions
	StackableDelta ()
virtual	~StackableDelta ()
virtual void	apply (Track::Track &track)=0
	Create a stack of DocumentDeltas.
void	unapply (Track::Track &track)
	Undo the stack of DocumentDeltas created in apply().
Protected Member Functions
void	add_to_stack (boost::shared_ptr< DocumentDelta > delta, Track::Track &track)
	Apply and record a change.
Private Attributes
std::vector< boost::shared_ptr< DocumentDelta > >	delta_stack
	The DocumentDeltas currently ready to be undone, last first.

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Detailed Description

A DocumentDelta that will combine the effects of other DocumentDeltas.

You can stack document deltas up in the apply() function using add_to_stack(delta, track).

Definition at line 28 of file StackableDelta.h.

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Constructor & Destructor Documentation

Document::StackableDelta::StackableDelta

(

)

Definition at line 17 of file StackableDelta.cpp.

Document::StackableDelta::~StackableDelta

(

)

[virtual]

Definition at line 21 of file StackableDelta.cpp.

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Member Function Documentation

void Document::StackableDelta::add_to_stack	(	boost::shared_ptr< DocumentDelta >	delta,
		Track::Track &	track
	)			[protected]

Apply and record a change.

This will perform the apply command for the DocumentDelta you pass in, and record it so that it can be undone later.

Parameters:

	delta	shared pointer to the DocumentDelta to apply.
	track	The Track::Track to apply it to.

Definition at line 34 of file StackableDelta.cpp.

virtual void Document::StackableDelta::apply

(

Track::Track &

track

)

[pure virtual]

Create a stack of DocumentDeltas.

Use only add_to_stack() to change the track, so that changes can be reversed.

Parameters:

track

The track to apply the changes to.

Implements Document::DocumentDelta.

Implemented in Document::ChangeVertexSegmentDelta, Document::ClearVertexDelta, Document::RemoveVertexDelta, and Document::SetStartPositionsDelta.

void Document::StackableDelta::unapply

(

Track::Track &

track

)

[virtual]

Undo the stack of DocumentDeltas created in apply().

Implements Document::DocumentDelta.

Definition at line 25 of file StackableDelta.cpp.

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Member Data Documentation

std::vector<boost::shared_ptr<DocumentDelta> > Document::StackableDelta::delta_stack [private]

The DocumentDeltas currently ready to be undone, last first.

Definition at line 54 of file StackableDelta.h.

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

• libtrack/document/StackableDelta.h
• libtrack/document/StackableDelta.cpp

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Generated at Mon Sep 6 00:41:17 2010 by Doxygen version 1.4.7 for Racer version svn335.