edbee::LineDataListChange Class Reference

A full line data text change. This means the growing or shrinking of the line data buffer It stores the old-data list that needs to be remebered for undoing. More...

#include <linedatalistchange.h>

Inheritance diagram for edbee::LineDataListChange:

Collaboration diagram for edbee::LineDataListChange:

Public Member Functions
	LineDataListChange (TextLineDataManager *manager, int offset, int lenght, int newLength)
	The line data text change constructor.
virtual	~LineDataListChange ()
	Destructs the linedata textchange.
virtual void	execute (TextDocument *document)
	Executes the line data changes.
virtual void	revert (TextDocument *doc)
	Reverts the line data change.
virtual void	mergeStoredData (AbstractRangedChange *change)
	This method merges the old data with the new data @apram change the data to merge with.
virtual bool	giveAndMerge (TextDocument *document, Change *textChange)
	Merges mutliple textline changes together.
virtual QString	toString ()
	Converts this change to a string.
int	offset () const
	Returns the line.
void	setOffset (int value)
	Sets the new offset.
virtual int	docLength () const
	Retursn the length in the document/data.
void	setDocLength (int value)
	This method sets the old length.
virtual int	storedLength () const
	The lengt of the content in this object.
TextLineDataList **	oldListList ()
	returns the old list list
int	oldListListLength ()
	retursn the length of th eold list list
Public Member Functions inherited from edbee::AbstractRangedChange
virtual	~AbstractRangedChange ()
	default destructor is empty
void	addOffset (int amount)
	Adds the given amount to the offset.
bool	isOverlappedBy (AbstractRangedChange *secondChange)
	This method checks if this textchange is overlapped by the second textchange overlapping is an exclusive overlap, which means the changes are really on top of eachother to test if the changes are touching use isTouchedBy.
bool	isTouchedBy (AbstractRangedChange *secondChange)
	Touched ranges are ranges that are next to eachother Touching means the end offset of one range is the start offset of the other range.
Public Member Functions inherited from edbee::Change
virtual	~Change ()
	a virtual empty destructor
virtual bool	canUndo ()
	This method should return true if the change can be reverted.
virtual bool	isPersistenceRequired ()
	This flag is used to mark this stack item as non-persistence requirable The default behaviour is that every textchange requires persistence. It is also possible to have certain changes that do not require persitence but should be placed on the undo stack.
virtual TextEditorController *	controllerContext ()
	A text command can belong to a controller/view When it's a view only command. The undo only applies only to this view warning a DOCUMENT change may NEVER return a controllerContext!!
bool	isDocumentChange ()
	this method can be used to check if the given change is a document change
virtual bool	isGroup ()
	This method returns true if this change is a group change. When an object is group change it should be inherited by TextChangeGroup.

Additional Inherited Members
Protected Member Functions inherited from edbee::AbstractRangedChange
int	getMergedDocLength (AbstractRangedChange *change)
	Calculates the merged length.
int	getMergedStoredLength (AbstractRangedChange *change)
	Calculates the merge data size, that's required for merging the given change.
void	mergeStoredDataViaMemcopy (void *targetData, void *data, void *changeData, AbstractRangedChange *change, int itemSize)
	This method merges the data via a memcopy. I really don't like this way of merging the data. though this is a way which support all kinds of arrays. I cannot use inheritance, because the types like QString don't have a common ancestor.
bool	merge (AbstractRangedChange *change)
	This method merges the change.

Detailed Description

A full line data text change. This means the growing or shrinking of the line data buffer It stores the old-data list that needs to be remebered for undoing.

Constructor & Destructor Documentation

LineDataListChange()

edbee::LineDataListChange::LineDataListChange	(	TextLineDataManager *	manager,
		int	line,
		int	length,
		int	newLength )

The line data text change constructor.

Parameters

manager	the line data manager
line	the starting line of the change
length	the number of lines affected
newLength	the new number of lines

~LineDataListChange()

edbee::LineDataListChange::~LineDataListChange ( )

virtual

Destructs the linedata textchange.

Member Function Documentation

docLength()

int edbee::LineDataListChange::docLength ( ) const

virtual

Retursn the length in the document/data.

Implements edbee::AbstractRangedChange.

execute()

void edbee::LineDataListChange::execute ( TextDocument * document )

virtual

Executes the line data changes.

Parameters

document

the document to execute the change for

new X[]() => fills it with zero's

Implements edbee::Change.

giveAndMerge()

bool edbee::LineDataListChange::giveAndMerge ( TextDocument * document, Change * textChange )

virtual

Merges mutliple textline changes together.

Parameters

document	the document the changes are fior
textChange	the other textchange

Returns

true if the merge succeed, false if not

Reimplemented from edbee::Change.

mergeStoredData()

void edbee::LineDataListChange::mergeStoredData ( AbstractRangedChange * change )

virtual

This method merges the old data with the new data @apram change the data to merge with.

Todo

: Know how and what to delete

Implements edbee::AbstractRangedChange.

offset()

int edbee::LineDataListChange::offset ( ) const

virtual

Returns the line.

Implements edbee::AbstractRangedChange.

oldListList()

TextLineDataList ** edbee::LineDataListChange::oldListList

(

)

returns the old list list

oldListListLength()

int edbee::LineDataListChange::oldListListLength

(

)

retursn the length of th eold list list

revert()

void edbee::LineDataListChange::revert ( TextDocument * doc )

virtual

Reverts the line data change.

Parameters

doc	the document to execute the change for

Reimplemented from edbee::Change.

setDocLength()

void edbee::LineDataListChange::setDocLength ( int value )

virtual

This method sets the old length.

Parameters

value

the new old-length value

Implements edbee::AbstractRangedChange.

setOffset()

void edbee::LineDataListChange::setOffset ( int value )

virtual

Sets the new offset.

Implements edbee::AbstractRangedChange.

storedLength()

int edbee::LineDataListChange::storedLength ( ) const

virtual

The lengt of the content in this object.

Implements edbee::AbstractRangedChange.

toString()

QString edbee::LineDataListChange::toString ( )

virtual

Converts this change to a string.

Implements edbee::Change.

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

• edbee/models/changes/linedatalistchange.h
• edbee/models/changes/linedatalistchange.cpp