Inkscape: Inkscape::XML::SignalObserver Class Reference

Searching...

No Matches

#include <helper-observer.h>

Inheritance diagram for Inkscape::XML::SignalObserver:

Public Member Functions
	SignalObserver ()

	~SignalObserver () override

void	set (SPObject *o)

void	notifyChildAdded (Node &, Node &, Node *) override
	Child addition callback.

void	notifyChildRemoved (Node &, Node &, Node *) override
	Child removal callback.

void	notifyChildOrderChanged (Node &, Node &, Node , Node ) override
	Child order change callback.

void	notifyContentChanged (Node &, Util::ptr_shared, Util::ptr_shared) override
	Content change callback.

void	notifyAttributeChanged (Node &, GQuark, Util::ptr_shared, Util::ptr_shared) override
	Attribute change callback.

void	notifyElementNameChanged (Node &, GQuark, GQuark) override
	Element name change callback.

sigc::signal< void()> &	signal_changed ()

Public Member Functions inherited from Inkscape::XML::NodeObserver
virtual	~NodeObserver ()=default

Private Attributes
sigc::signal< void()>	_signal_changed

SPObject *	_oldsel

Additional Inherited Members
Protected Member Functions inherited from Inkscape::XML::NodeObserver
	NodeObserver ()=default

Detailed Description

Definition at line 27 of file helper-observer.h.

Constructor & Destructor Documentation

◆ SignalObserver()

Inkscape::XML::SignalObserver::SignalObserver ( )

Definition at line 19 of file helper-observer.cpp.

◆ ~SignalObserver()

Inkscape::XML::SignalObserver::~SignalObserver ( )

override

Definition at line 23 of file helper-observer.cpp.

References set.

Member Function Documentation

◆ notifyAttributeChanged()

void Inkscape::XML::SignalObserver::notifyAttributeChanged	(	XML::Node &	node,
		GQuark	name,
		Util::ptr_shared	old_value,
		Util::ptr_shared	new_value
	)

overridevirtual

Attribute change callback.

This method is called whenever one of a node's attributes is changed.

Parameters

node	The changed XML node
name	GQuark corresponding to the attribute's name
old_value	Old value of the modified attribute. Is a nullptr when the attribute is added.
new_value	New value of the modified attribute. Is a nullptr when the attribute is removed.

Reimplemented from Inkscape::XML::NodeObserver.

Definition at line 62 of file helper-observer.cpp.

References signal_changed().

◆ notifyChildAdded()

void Inkscape::XML::SignalObserver::notifyChildAdded	(	XML::Node &	node,
		XML::Node &	child,
		XML::Node *	prev
	)

overridevirtual

Child addition callback.

This method is called whenever a child is added to the observed node. The prev parameter is NULL when the newly added child is first in the sibling order.

Parameters

node	The changed XML node
child	The newly added child node
prev	The node after which the new child was inserted into the sibling order, or NULL

Reimplemented from Inkscape::XML::NodeObserver.

Definition at line 50 of file helper-observer.cpp.

References signal_changed().

◆ notifyChildOrderChanged()

void Inkscape::XML::SignalObserver::notifyChildOrderChanged	(	XML::Node &	node,
		XML::Node &	child,
		XML::Node *	old_prev,
		XML::Node *	new_prev
	)

overridevirtual

Child order change callback.

This method is called whenever the order of a node's children is changed using Node::changeOrder(). The old_prev parameter is NULL if the relocated node was first in the sibling order before the order change, and new_prev is NULL if it was moved to the first position by this operation.

Parameters

node	The changed XML node
child	The child node that was relocated in the sibling order
old_prev	The node that was before `child` prior to the order change
new_prev	The node that is before `child` after the order change

Reimplemented from Inkscape::XML::NodeObserver.

Definition at line 56 of file helper-observer.cpp.

References signal_changed().

◆ notifyChildRemoved()

void Inkscape::XML::SignalObserver::notifyChildRemoved	(	XML::Node &	node,
		XML::Node &	child,
		XML::Node *	prev
	)

overridevirtual

Child removal callback.

This method is called whenever a child is removed from the observed node. The prev parameter is NULL when the removed child was first in the sibling order.

Parameters