QPropertyUndoCommand Class Reference

The QPropertyUndoCommand class This undo command manage QProperty of a QObject. This undo command can use QPropertyAnimation to animate the change when undo/redo is call To use animation call setAnimated(true). By default animation is disable. Some QVariant date can't be animated and result this command don't work. More...

#include <qpropertyundocommand.h>

Inherits QUndoCommand.

Collaboration diagram for QPropertyUndoCommand:

Public Member Functions
	QPropertyUndoCommand (QObject *object, const char *property_name, const QVariant &old_value, const QVariant &new_value, QUndoCommand *parent=nullptr)
	QPropertyUndoCommand::QPropertyUndoCommand Default constructor with old and new value This command don't take ownership of object.
	QPropertyUndoCommand (QObject *object, const char *property_name, const QVariant &old_value, QUndoCommand *parent=nullptr)
	QPropertyUndoCommand::QPropertyUndoCommand Default constructor with old value. Call setNewValue to setup the new value of the edited QObject This command don't take ownership of object.
	QPropertyUndoCommand (const QPropertyUndoCommand *other)
	QPropertyUndoCommand::QPropertyUndoCommand.
void	setNewValue (const QVariant &new_value)
	QPropertyUndoCommand::setNewValue Set the new value of the property (set with redo) to new_value.
void	enableAnimation (bool animate=true)
	QPropertyUndoCommand::enableAnimation True to enable animation.
void	setAnimated (bool animate=true, bool first_time=true)
	QPropertyUndoCommand::setAnimated.
int	id () const override
bool	mergeWith (const QUndoCommand *other) override
	QPropertyUndoCommand::mergeWith Try to merge this command with other command.
void	redo () override
	QPropertyUndoCommand::redo Redo this command.
void	undo () override
	QPropertyUndoCommand::undo Undo this command.

Private Attributes
QObject *	m_object = nullptr
const char *	m_property_name
QVariant	m_old_value
QVariant	m_new_value
bool	m_animate = false
bool	m_first_time = true

Detailed Description

The QPropertyUndoCommand class This undo command manage QProperty of a QObject. This undo command can use QPropertyAnimation to animate the change when undo/redo is call To use animation call setAnimated(true). By default animation is disable. Some QVariant date can't be animated and result this command don't work.

Constructor & Destructor Documentation

QPropertyUndoCommand() [1/3]

QPropertyUndoCommand::QPropertyUndoCommand	(	QObject *	object,
		const char *	property_name,
		const QVariant &	old_value,
		const QVariant &	new_value,
		QUndoCommand *	parent = nullptr
	)

QPropertyUndoCommand::QPropertyUndoCommand Default constructor with old and new value This command don't take ownership of object.

Parameters

object
property_name
old_value
new_value
parent

QPropertyUndoCommand() [2/3]

QPropertyUndoCommand::QPropertyUndoCommand	(	QObject *	object,
		const char *	property_name,
		const QVariant &	old_value,
		QUndoCommand *	parent = nullptr
	)

QPropertyUndoCommand::QPropertyUndoCommand Default constructor with old value. Call setNewValue to setup the new value of the edited QObject This command don't take ownership of object.

Parameters

object
property_name
old_value
parent

QPropertyUndoCommand() [3/3]

QPropertyUndoCommand::QPropertyUndoCommand

(

const QPropertyUndoCommand *

other

)

QPropertyUndoCommand::QPropertyUndoCommand.

Parameters

other

Member Function Documentation

enableAnimation()

void QPropertyUndoCommand::enableAnimation

(

bool

animate = true

)

QPropertyUndoCommand::enableAnimation True to enable animation.

Parameters

animate

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id()

int QPropertyUndoCommand::id ( ) const

inlineoverride

mergeWith()

bool QPropertyUndoCommand::mergeWith ( const QUndoCommand *  other )

override

QPropertyUndoCommand::mergeWith Try to merge this command with other command.

Parameters

other

Returns

true if was merged, else false

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redo()

void QPropertyUndoCommand::redo ( )

override

QPropertyUndoCommand::redo Redo this command.

setAnimated()

void QPropertyUndoCommand::setAnimated	(	bool	animate = true,
		bool	first_time = true
	)

QPropertyUndoCommand::setAnimated.

Parameters

animate	= true for animate this undo
first_time	= if true, the first animation is done at the first call of redo if false, the first animation is done at the second call of redo.

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setNewValue()

void QPropertyUndoCommand::setNewValue

(

const QVariant &

new_value

)

QPropertyUndoCommand::setNewValue Set the new value of the property (set with redo) to new_value.

Parameters

new_value

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undo()

void QPropertyUndoCommand::undo ( )

override

QPropertyUndoCommand::undo Undo this command.

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Member Data Documentation

m_animate

bool QPropertyUndoCommand::m_animate = false

private

m_first_time

bool QPropertyUndoCommand::m_first_time = true

private

m_new_value

QVariant QPropertyUndoCommand::m_new_value

private

m_object

QObject* QPropertyUndoCommand::m_object = nullptr

private

m_old_value

QVariant QPropertyUndoCommand::m_old_value

private

m_property_name

const char* QPropertyUndoCommand::m_property_name

private

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

• sources/QPropertyUndoCommand/qpropertyundocommand.h
• sources/QPropertyUndoCommand/qpropertyundocommand.cpp