ChangePortSizeCommand Class Reference

Undo command that changes the number of input or output ports on selected elements. More...

#include <Commands.h>

Inheritance diagram for ChangePortSizeCommand:

Public Member Functions
	ChangePortSizeCommand (const QList< GraphicElement * > &elements, const int newPortSize, Scene *scene, const bool isInput, QUndoCommand *parent=nullptr)
	Constructs the command.
void	redo () override
	Applies the new port count.
void	undo () override
	Restores the old port count and connections.

Additional Inherited Members
Protected Member Functions inherited from ElementsCommand
QList< GraphicElement * >	elements () const
	Returns the live element pointers for this command's targets, looked up by stored ID.
	ElementsCommand (const QList< GraphicElement * > &elements, Scene *scene, QUndoCommand *parent=nullptr)
Protected Attributes inherited from ElementsCommand
QList< int >	m_ids
Scene *	m_scene

Detailed Description

Undo command that changes the number of input or output ports on selected elements.

Definition at line 351 of file Commands.h.

Constructor & Destructor Documentation

ChangePortSizeCommand()

ChangePortSizeCommand::ChangePortSizeCommand ( const QList< GraphicElement * > & elements, const int newPortSize, Scene * scene, const bool isInput, QUndoCommand * parent = nullptr )

explicit

Constructs the command.

Parameters

elements	Elements whose port count will change.
newPortSize	Desired number of ports.
scene	Target scene.
isInput	If true, adjusts input ports; otherwise adjusts output ports.
parent	Optional parent undo command.

Definition at line 959 of file Commands.cpp.

References ElementsCommand::elements(), and ElementsCommand::ElementsCommand().

Member Function Documentation

redo()

void ChangePortSizeCommand::redo ( )

override

Applies the new port count.

Definition at line 968 of file Commands.cpp.

References Port::connections(), CommandUtils::drainPortConnections(), ElementsCommand::elements(), Port::graphicElement(), InMemorySnapshot, ElementsCommand::m_scene, GraphicElement::save(), and Serialization::writePandaHeader().

undo()

void ChangePortSizeCommand::undo ( )

override

Restores the old port count and connections.

Definition at line 1020 of file Commands.cpp.

References ElementsCommand::elements(), CommandUtils::findElements(), InMemorySnapshot, ElementsCommand::m_scene, and Serialization::readPandaHeader().

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

• Commands.h
• Commands.cpp