BpsKeyFilter Class Reference

Event filter catching key press/release events and emitting signals for them. More...

#include <bpskeyfilter.h>

Inheritance diagram for BpsKeyFilter:

Public Types
enum	{   Enter , F1 , F2 , F3 , F4 , F5 , F6 , F7 , F8 , F9 ,   F10 , F11 , F12 , CtrlEnter , CtrlF1 , CtrlF2 , CtrlF3 , CtrlF4 , CtrlF5 , CtrlF6 ,   CtrlF7 , CtrlF8 , CtrlF9 , CtrlF10 , CtrlF11 , CtrlF12 , AltEnter , AltF1 , AltF2 , AltF3 ,   AltF4 , AltF5 , AltF6 , AltF7 , AltF8 , AltF9 , AltF10 , AltF11 , AltF12 }
	Key specifiers. More...

Signals
void	keyPressed ()
	This signal is emitted when any of the given keys was pressed. More...
void	keyPressed (int aKey)
	This signal is emitted when any of the given keys was pressed. More...
void	keyReleased ()
	This signal is emitted when the key was released. More...
void	keyReleased (int aKey)
	This signal is emitted when any of the given keys was released. More...

Public Member Functions
	BpsKeyFilter (const QSet< int > &aKeys, QObject *aParent=nullptr)
	Filter for list of given keys. More...
	BpsKeyFilter (int aKey, QObject *aParent=nullptr)
	Filter for a single given key. More...
Public Member Functions inherited from QObject
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 ()
void	dumpObjectInfo () const const
void	dumpObjectTree ()
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 QRegExp &regExp, 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
bool	inherits (const char *className) const const
void	installEventFilter (QObject *filterObj)
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_DISABLE_COPY (Class)
	Q_DISABLE_COPY_MOVE (Class)
	Q_DISABLE_MOVE (Class)
	Q_EMIT Q_EMIT
	Q_ENUM (...)
	Q_ENUM_NS (...)
	Q_ENUMS (...)
	Q_FLAG (...)
	Q_FLAG_NS (...)
	Q_FLAGS (...)
	Q_GADGET Q_GADGET
	Q_INTERFACES (...)
	Q_INVOKABLE Q_INVOKABLE
	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	qFindChild (const QObject *obj, const QString &name)
QList< T >	qFindChildren (const QObject *obj, const QRegExp &regExp)
QList< T >	qFindChildren (const QObject *obj, const QString &name)
	QObject (QObject *parent)
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	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

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)
QString	trUtf8 (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)
Properties inherited from QObject
	objectName

Detailed Description

Event filter catching key press/release events and emitting signals for them.

// create filters
BpsKeyFilter* enterKeyFilter = new BpsKeyFilter(BpsKeyFilter::Enter, this);
 
QSet<int> fkeys;
fkeys << BpsKeyFilter::F3 << BpsKeyFilter::F4 << BpsKeyFilter::F5;
BpsKeyFilter* scalesKeyFilter = new BpsKeyFilter(fkeys , this);
 
// apply filters to current widget
installEventFilter(enterKeyFilter);
installEventFilter(scalesKeyFilter);
 
// make connections
connect(enterKeyFilter, SIGNAL(keyPressed()), this, SLOT(weigh()));
connect(scalesKeyFilter, SIGNAL(keyPressed(int)), this, SLOT(selSales(int)));

Member Enumeration Documentation

anonymous enum

anonymous enum

Key specifiers.

Enumerator
Enter	Enter.
F1	F1.
F2	F2.
F3	F3.
F4	F4.
F5	F5.
F6	F6.
F7	F7.
F8	F8.
F9	F9.
F10	F10.
F11	F11.
F12	F12.
CtrlEnter	Ctrl and Enter.
CtrlF1	Ctrl and F1.
CtrlF2	Ctrl and F2.
CtrlF3	Ctrl and F3.
CtrlF4	Ctrl and F4.
CtrlF5	Ctrl and F5.
CtrlF6	Ctrl and F6.
CtrlF7	Ctrl and F7.
CtrlF8	Ctrl and F8.
CtrlF9	Ctrl and F9.
CtrlF10	Ctrl and F10.
CtrlF11	Ctrl and F11.
CtrlF12	Ctrl and F12.
AltEnter	Alt and Enter.
AltF1	Alt and F1.
AltF2	Alt and F2.
AltF3	Alt and F3.
AltF4	Alt and F4.
AltF5	Alt and F5.
AltF6	Alt and F6.
AltF7	Alt and F7.
AltF8	Alt and F8.
AltF9	Alt and F9.
AltF10	Alt and F10.
AltF11	Alt and F11.
AltF12	Alt and F12.

Constructor & Destructor Documentation

BpsKeyFilter() [1/2]

BpsKeyFilter::BpsKeyFilter	(	int	aKey,
		QObject *	aParent = nullptr
	)

Filter for a single given key.

Parameters

aKey	The key to handle (see key specifiers).
aParent	The parent object.

BpsKeyFilter() [2/2]

BpsKeyFilter::BpsKeyFilter	(	const QSet< int > &	aKeys,
		QObject *	aParent = nullptr
	)

Filter for list of given keys.

Parameters

aKeys	A set of keys to handle (see key specifiers).
aParent	The parent object.

Member Function Documentation

keyPressed [1/2]

void BpsKeyFilter::keyPressed ( )

signal

This signal is emitted when any of the given keys was pressed.

This is a convenience overload useful when only one single key is filtered.

keyPressed [2/2]

void BpsKeyFilter::keyPressed ( int  aKey )

signal

This signal is emitted when any of the given keys was pressed.

Parameters

aKey	The key that was pressed (see key specifiers).

keyReleased [1/2]

void BpsKeyFilter::keyReleased ( )

signal

This signal is emitted when the key was released.

This is a convenience overload useful when only one single key is filtered.

keyReleased [2/2]

void BpsKeyFilter::keyReleased ( int  aKey )

signal

This signal is emitted when any of the given keys was released.

Parameters

aKey	The key that was released (see key specifiers).

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

• bpskeyfilter.h