Model::NoteNodeChange Class Reference

Inheritance diagram for Model::NoteNodeChange:

Public Member Functions
	NoteNodeChange (QSet< Node * > &modifiedTargets, QSet< Node * > &removedTargets, const UndoCommand *command)
virtual void	redo ()
virtual void	undo ()
Public Member Functions inherited from Model::UndoCommand
	UndoCommand (Node *target, const QString &text)
virtual	~UndoCommand ()
virtual Node *	insertedNode () const
	Returns the node that this command inserted into the tree, or nullptr if no node was inserted. More...
bool	isUndone () const
	Returns whether the command has been undone since it was applied. More...
virtual Node *	owned () const
	Returns the node owned by this command or nullptr if no node is owned. More...
virtual Node *	removedNode () const
	Returns the node that this command removed from the tree, or nullptr if no node was removed. More...
Node *	target () const

Private Member Functions
void	markNodeAndChildrenAsRemoved (Node *node) const
void	unmarkRemovals (Node *insertedNode) const
	It could happen than a subtree which is removed earlier in the undostack, is reinserted at a later time in the command stack. More...

Private Attributes
Node *	insertedNode_ {}
QSet< Node * > &	modifiedTargets_
Node *	removedNode_ {}
QSet< Node * > &	removedTargets_
Node *	target_ {}

Constructor & Destructor Documentation

NoteNodeChange()

Model::NoteNodeChange::NoteNodeChange	(	QSet< Node * > &	modifiedTargets,
		QSet< Node * > &	removedTargets,
		const UndoCommand *	command
	)

Member Function Documentation

markNodeAndChildrenAsRemoved()

void Model::NoteNodeChange::markNodeAndChildrenAsRemoved ( Node *  node ) const

private

redo()

void Model::NoteNodeChange::redo ( )

virtual

Reimplemented from Model::UndoCommand.

undo()

void Model::NoteNodeChange::undo ( )

virtual

Reimplemented from Model::UndoCommand.

unmarkRemovals()

void Model::NoteNodeChange::unmarkRemovals ( Node *  insertedNode ) const

private

It could happen than a subtree which is removed earlier in the undostack, is reinserted at a later time in the command stack.

In such cases we should not report these nodes as removed. (MAYBE)

TODO: Think about whether we:

• should not report nodes which have been essentially moved in any way
• should report moved nodes in some special way
• should report moved nodes as a pair of deletion/insertion

Member Data Documentation

insertedNode_

Node* Model::NoteNodeChange::insertedNode_ {}

private

modifiedTargets_

QSet<Node*>& Model::NoteNodeChange::modifiedTargets_

private

removedNode_

Node* Model::NoteNodeChange::removedNode_ {}

private

removedTargets_

QSet<Node*>& Model::NoteNodeChange::removedTargets_

private

target_

Node* Model::NoteNodeChange::target_ {}

private