The GroupedProgressManager class produces an overall progress value from a collection of progress groups. More...

Collaboration diagram for Qx::GroupedProgressManager:

Signals
void	groupMaximumChanged (Qx::ProgressGroup *group, quint64 maximum)

void	groupValueChanged (Qx::ProgressGroup *group, quint64 value)

void	progressUpdated (quint64 currentValue)

void	valueChanged (quint64 value)

Public Member Functions
	GroupedProgressManager (QObject *parent=nullptr)

ProgressGroup *	addGroup (const QString &name)

void	addGroup (ProgressGroup *progressGroup)

ProgressGroup *	group (const QString &name)

quint64	maximum () const

void	removeGroup (const QString &name)

quint64	value () const

Public Member Functions inherited from QObject
	QObject (QObject *parent)

QBindable< QString >	bindableObjectName ()

bool	blockSignals (bool block)

const QObjectList &	children () const const

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *method, Qt::ConnectionType type) const const

void	deleteLater ()

void	destroyed (QObject *obj)

bool	disconnect (const char signal, const QObject receiver, const char *method) const const

bool	disconnect (const QObject receiver, const char method) const const

void	dumpObjectInfo () const const

void	dumpObjectTree () const const

QList< QByteArray >	dynamicPropertyNames () const const

virtual bool	event (QEvent *e)

virtual bool	eventFilter (QObject watched, QEvent event)

T	findChild (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (Qt::FindChildOptions options) const const

bool	inherits (const char *className) const const

void	installEventFilter (QObject *filterObj)

bool	isQuickItemType () const const

bool	isWidgetType () const const

bool	isWindowType () const const

void	killTimer (int id)

virtual const QMetaObject *	metaObject () const const

void	moveToThread (QThread *targetThread)

QString	objectName () const const

void	objectNameChanged (const QString &objectName)

QObject *	parent () const const

QVariant	property (const char *name) const const

	Q_CLASSINFO (Name, Value)

	Q_EMIT Q_EMIT

	Q_ENUM (...)

	Q_ENUM_NS (...)

	Q_ENUMS (...)

	Q_FLAG (...)

	Q_FLAG_NS (...)

	Q_FLAGS (...)

	Q_GADGET Q_GADGET

	Q_GADGET_EXPORT (EXPORT_MACRO)

	Q_INTERFACES (...)

	Q_INVOKABLE Q_INVOKABLE

	Q_MOC_INCLUDE Q_MOC_INCLUDE

	Q_NAMESPACE Q_NAMESPACE

	Q_NAMESPACE_EXPORT (EXPORT_MACRO)

	Q_OBJECT Q_OBJECT

	Q_PROPERTY (...)

	Q_REVISION Q_REVISION

	Q_SET_OBJECT_NAME (Object)

	Q_SIGNAL Q_SIGNAL

	Q_SIGNALS Q_SIGNALS

	Q_SLOT Q_SLOT

	Q_SLOTS Q_SLOTS

T	qobject_cast (const QObject *object)

T	qobject_cast (QObject *object)

	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT

void	removeEventFilter (QObject *obj)

void	setObjectName (const QString &name)

void	setObjectName (QAnyStringView name)

void	setParent (QObject *parent)

bool	setProperty (const char *name, const QVariant &value)

bool	signalsBlocked () const const

int	startTimer (int interval, Qt::TimerType timerType)

int	startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)

QThread *	thread () const const

Properties
quint64	maximum
	The maximum value of the grouped progress manager.

quint64	value
	The current value of the grouped progress manager.

Properties inherited from QObject
	objectName

Additional Inherited Members
Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject context, Functor functor, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)

bool	disconnect (const QMetaObject::Connection &connection)

bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char method)

bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method)

bool	disconnect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method)

QString	tr (const char sourceText, const char disambiguation, int n)

Public Attributes inherited from QObject
typedef	QObjectList

Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	customEvent (QEvent *event)

virtual void	disconnectNotify (const QMetaMethod &signal)

bool	isSignalConnected (const QMetaMethod &signal) const const

int	receivers (const char *signal) const const

QObject *	sender () const const

int	senderSignalIndex () const const

virtual void	timerEvent (QTimerEvent *event)

Detailed Description

A GroupedProgressManager is used to convert the relative percent completion of an arbitrary number of progress groups into a total completion value in accordance with their weights.

The weighting of each progress group can be used to limit a group's contribution towards overall progress to a certain proportion, regardless of that individual group's number of steps.

Qx::GroupedProgressManager gpm;
 
Qx::ProgressGroup* fileGroup = gpm.addGroup("File Copies");
fileGroup->setMaximum(100);
fileGroup->setValue(50); // 50% completion of "File Copies"
fileGroup->setWeight(3);
 
Qx::ProgressGroup* coolGroup = gpm.addGroup("Cool Stuff");
coolGroup->setMaximum(100);
coolGroup->setValue(0); // 0% completion of "Cool Stuff"
coolGroup->setWeight(7);
 
quint64 overallProgress = gpm.value(); // overallProgress = 15

The above example shows how even though the progress group "File Copies" is 50% complete, the progress reported by the grouped progress manager is only 15%, because the weighting of both groups dictates that "File Copies" only accounts for 3/(7 + 3) = 0.3 (or 30%) of overall progress.

A grouped progress manager always reports overall progress as a value from 0 to 100.

See also: ProgressGroup, QProgressBar

Constructor & Destructor Documentation

◆ GroupedProgressManager()

Qx::GroupedProgressManager::GroupedProgressManager ( QObject * parent = nullptr )

explicit

Constructs a GroupedProgressManager with the specified parent.

Member Function Documentation

◆ addGroup() [1/2]

ProgressGroup * Qx::GroupedProgressManager::addGroup ( const QString & name )

Adds a new progress group with the given name to the manager.

If a group with that name already exists, it will be replaced.

◆ addGroup() [2/2]

void Qx::GroupedProgressManager::addGroup ( ProgressGroup * progressGroup )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Adds progress group progressGroup to the manager.

If a group with the same name is already present, it will be replaced.

◆ group()

ProgressGroup * Qx::GroupedProgressManager::group ( const QString & name )

Returns a pointer to the progress group with the given name, or nullptr if it does not exist within the manager.

◆ groupMaximumChanged

void Qx::GroupedProgressManager::groupMaximumChanged	(	Qx::ProgressGroup *	group,
		quint64	maximum )

signal

This signal is emitted whenever a managed group's maximum value changes. The group parameter will contain a pointer to the group whose maximum changed, while maximum will contain the new maximum.

See also: ProgressGroup::maximumChanged().

◆ groupValueChanged

void Qx::GroupedProgressManager::groupValueChanged	(	Qx::ProgressGroup *	group,
		quint64	value )

signal

This signal is emitted whenever a managed group's value changes. The group parameter will contain a pointer to the group whose value changed, while value will contain the new value.

See also: ProgressGroup::valueChanged().

◆ maximum()

quint64 Qx::GroupedProgressManager::maximum ( ) const

Returns the maximum value of the manager.

This function will always return 100, and exists as a convenience method so that user code does not need to remember this.

◆ progressUpdated

void Qx::GroupedProgressManager::progressUpdated ( quint64 currentValue )

signal

This signal is emitted whenever the progress of any group handled by the manager changes, even if the change was too small to affect the weighted sum of the manager itself.

currentValue will contain the current value of the manager, which may not differ from the last time this signal was emitted.

This is useful if you need to be notified when progress has changed by any amount whatsoever.

Note: Since this value is recalculated every time a progress group is added to the manager, in manner that may result the value going up and down, it is recommended to not connect this signal to an observer until the manager has been fully initialized for a given use.

See also: valueChanged().

◆ removeGroup()

void Qx::GroupedProgressManager::removeGroup ( const QString & name )

Removes the group named name from the manager, if present.

◆ value()

quint64 Qx::GroupedProgressManager::value ( ) const

Returns the current value of the manager.

◆ valueChanged

void Qx::GroupedProgressManager::valueChanged ( quint64 value )

signal

This signal is emitted whenever the grouped progress manager's current value changes.

Note: Since this value is recalculated every time a progress group is added to the manager, in manner that may result the value going up and down, it is recommended to not connect this signal to an observer until the manager has been fully initialized for a given use.

See also: progressUpdated(), and groupValueChanged().

Property Documentation

◆ maximum

Qx::GroupedProgressManager::maximum

read

This value is always 100.

◆ value

Qx::GroupedProgressManager::value

read

This value will always be between 0 and 100.

The default is 0.

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

qx-groupedprogressmanager.h
qx-groupedprogressmanager.cpp

Signals

Public Member Functions

Properties

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ GroupedProgressManager()

Member Function Documentation

◆ addGroup() [1/2]

◆ addGroup() [2/2]

◆ group()

◆ groupMaximumChanged

◆ groupValueChanged

◆ maximum()

◆ progressUpdated

◆ removeGroup()

◆ value()

◆ valueChanged

Property Documentation

◆ maximum

◆ value