AddAnnotationCommand Class Reference

Records the placement of a single text annotation. More...

#include <mapundostack.h>

Inheritance diagram for AddAnnotationCommand:

Collaboration diagram for AddAnnotationCommand:

Public Member Functions
	AddAnnotationCommand (OpenSWMMVisAnnotationLayer *layer, AnnotationTextItem *item, MapCanvas *canvas, QUndoCommand *parent=nullptr)
	~AddAnnotationCommand () override
void	undo () override
void	redo () override
int	id () const override
Public Member Functions inherited from MapCommand
	MapCommand (const QString &text, MapCanvas *canvas, QUndoCommand *parent=nullptr)
	Constructs a map command with a human-readable text.
MapCanvas *	canvas () const

Additional Inherited Members
Protected Attributes inherited from MapCommand
MapCanvas *	m_canvas

Detailed Description

Records the placement of a single text annotation.

The command owns the AnnotationTextItem while it is detached from the layer (undo state). On redo, the item is moved into the layer (which takes QObject parent ownership). On undo, the layer detaches the item via takeAnnotation, returning it to the command. This pattern keeps the item's id stable across redo/undo cycles so any side-channel references survive.

Constructor & Destructor Documentation

AddAnnotationCommand()

AddAnnotationCommand::AddAnnotationCommand	(	OpenSWMMVisAnnotationLayer *	layer,
		AnnotationTextItem *	item,
		MapCanvas *	canvas,
		QUndoCommand *	parent = nullptr
	)

Parameters

item	Newly-created annotation. The command takes ownership; it transfers to the layer on each redo and back to the command on undo.

~AddAnnotationCommand()

AddAnnotationCommand::~AddAnnotationCommand ( )

override

Member Function Documentation

id()

int AddAnnotationCommand::id ( ) const

inlineoverride

redo()

void AddAnnotationCommand::redo ( )

override

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undo()

void AddAnnotationCommand::undo ( )

override

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

• /home/runner/work/openswmm.gui/openswmm.gui/include/map/mapundostack.h
• /home/runner/work/openswmm.gui/openswmm.gui/src/map/mapundostack.cpp