OOInteraction::SetExpressionCursorEvent Class Reference

Inheritance diagram for OOInteraction::SetExpressionCursorEvent:

Public Member Functions
	SetExpressionCursorEvent (Visualization::Item *parentContainer, Model::Node *node, int offset)
virtual void	execute ()
Public Member Functions inherited from Visualization::CustomSceneEvent
	CustomSceneEvent (EventFunction f)
	CustomSceneEvent (QEvent::Type type)
virtual	~CustomSceneEvent ()
void	setEventFunction (EventFunction f)

Static Public Attributes
static const QEvent::Type	EventType = static_cast<QEvent::Type> (QEvent::registerEventType())
Static Public Attributes inherited from Visualization::CustomSceneEvent
static const QEvent::Type	EventType = static_cast<QEvent::Type> (QEvent::registerEventType())

Private Member Functions
bool	tryToSetOffset (Visualization::Item *item)

Private Attributes
Model::Node *	node_
int	offset_
QList< Visualization::Item * >	parentContainerChain_
	Instead of just storing the visualization that contains the visualization node, this field stores all ancestors of that visualization. More...
bool	reposted_ {}

Additional Inherited Members
Public Types inherited from Visualization::CustomSceneEvent
using	EventFunction = std::function< void()>

Constructor & Destructor Documentation

SetExpressionCursorEvent()

OOInteraction::SetExpressionCursorEvent::SetExpressionCursorEvent	(	Visualization::Item *	parentContainer,
		Model::Node *	node,
		int	offset
	)

Member Function Documentation

execute()

void OOInteraction::SetExpressionCursorEvent::execute ( )

virtual

Reimplemented from Visualization::CustomSceneEvent.

tryToSetOffset()

bool OOInteraction::SetExpressionCursorEvent::tryToSetOffset ( Visualization::Item *  item )

private

Member Data Documentation

EventType

const QEvent::Type OOInteraction::SetExpressionCursorEvent::EventType = static_cast<QEvent::Type> (QEvent::registerEventType())

static

node_

Model::Node* OOInteraction::SetExpressionCursorEvent::node_

private

offset_

int OOInteraction::SetExpressionCursorEvent::offset_

private

parentContainerChain_

QList<Visualization::Item*> OOInteraction::SetExpressionCursorEvent::parentContainerChain_

private

Instead of just storing the visualization that contains the visualization node, this field stores all ancestors of that visualization.

The reason is that when this cursor event object is constructed, before an update, a parent container is provided that might turn out to be the wrong container after the update. For example the expression node, might be recognized as a special expression and its visualization might be transferred somewhere else.

Having the entire chain of parents makes it possible to assure that:

• The container that was specified was not deleted.
• The new place where this node is visualized is properly given the cursor.

reposted_

bool OOInteraction::SetExpressionCursorEvent::reposted_ {}

private