Records the creation of a SWMM node. More...

#include <mapundostack.h>

Inheritance diagram for AddNodeCommand:

Collaboration diagram for AddNodeCommand:

Public Member Functions
	AddNodeCommand (SWMMModelLayer layer, QString name, int nodeType, double x, double y, MapCanvas canvas, double invertElev=0.0, QUndoCommand *parent=nullptr)
	Creates an add-node command.

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 creation of a SWMM node.

redo() calls SWMMModelLayer::applyNodeAdd, which pushes the new node onto the end of the engine's node list and caches its geometry. undo() calls rollbackTailNodeAdd — the narrow "pop-last" helper that works only while the added node is still the most recent.

Consequence: AddNodeCommand cannot be undone after any subsequent add/remove has shifted it out of the tail position. The GUI guards against this by rejecting the undo and leaving the stack untouched (a clean no-op).

Constructor & Destructor Documentation

◆ AddNodeCommand()

AddNodeCommand::AddNodeCommand	(	SWMMModelLayer *	layer,
		QString	name,
		int	nodeType,
		double	x,
		double	y,
		MapCanvas *	canvas,
		double	invertElev = `0.0`,
		QUndoCommand *	parent = `nullptr`
	)

Creates an add-node command.

Parameters

invertElev If non-zero, written to the engine via swmm_node_set_invert_elev after the node is created. Defaults to 0.0 (engine default = no elevation override).

Member Function Documentation

◆ id()

int AddNodeCommand::id ( ) const

inlineoverride

◆ redo()

void AddNodeCommand::redo ( )

override

Here is the call graph for this function:

◆ undo()

void AddNodeCommand::undo ( )