PromoteShapeCommand Class Reference

The PromoteShapeCommand class Used whenever a shape's identity changes – a Rectangle's corner is dragged independently and it becomes a Polygon, an Arc is explicitly converted to a free-form Path, etc. More...

#include <promoteshapecommand.h>

Inherits QUndoCommand.

Collaboration diagram for PromoteShapeCommand:

Public Member Functions
	PromoteShapeCommand (QetShapeItem *shape, const QDomElement &priorStateXml, const QDomElement &newStateXml, QUndoCommand *parent=nullptr)
void	undo () override
void	redo () override

Private Attributes
QPointer< QetShapeItem >	m_shape
QDomDocument	m_priorDoc
QDomDocument	m_newDoc

Detailed Description

The PromoteShapeCommand class Used whenever a shape's identity changes – a Rectangle's corner is dragged independently and it becomes a Polygon, an Arc is explicitly converted to a free-form Path, etc.

The saved .qet file never records what a shape used to be; that fact only needs to survive as long as the rest of the edit history does, so it lives entirely here, as a full XML snapshot on each side. Undo restores the exact prior shape – type, geometry and transform alike – by round-tripping through the same fromXml() every other load uses. Once the file is saved and reopened, the promotion is permanent, same as any other undo history.

Constructor & Destructor Documentation

PromoteShapeCommand()

PromoteShapeCommand::PromoteShapeCommand	(	QetShapeItem *	shape,
		const QDomElement &	priorStateXml,
		const QDomElement &	newStateXml,
		QUndoCommand *	parent = nullptr )

Member Function Documentation

redo()

void PromoteShapeCommand::redo ( )

override

undo()

void PromoteShapeCommand::undo ( )

override

Member Data Documentation

m_newDoc

QDomDocument PromoteShapeCommand::m_newDoc

private

m_priorDoc

QDomDocument PromoteShapeCommand::m_priorDoc

private

m_shape

QPointer<QetShapeItem> PromoteShapeCommand::m_shape

private

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

• sources/undocommand/promoteshapecommand.h
• sources/undocommand/promoteshapecommand.cpp