BpsKeyFilter Class Reference

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

#include <bpskeyfilter.h>

List of all members.

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.
void	keyPressed (int aKey)
	This signal is emitted when any of the given keys was pressed.
void	keyReleased ()
	This signal is emitted when the key was released.
void	keyReleased (int aKey)
	This signal is emitted when any of the given keys was released.
Public Member Functions
	BpsKeyFilter (int aKey, QObject *aParent=0)
	Filter for a single given key.
	BpsKeyFilter (const QSet< int > &aKeys, QObject *aParent=0)
	Filter for list of given keys.

---

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

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::BpsKeyFilter	(	int	aKey,
		QObject *	aParent = 0
	)

Filter for a single given key.

Parameters:

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

BpsKeyFilter::BpsKeyFilter	(	const QSet< int > &	aKeys,
		QObject *	aParent = 0
	)

Filter for list of given keys.

Parameters:

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

---

Member Function Documentation

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.

void BpsKeyFilter::keyPressed

(

int

aKey

)

[signal]

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

Parameters:

[in]

aKey

The key that was pressed (see key specifiers).

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.

void BpsKeyFilter::keyReleased

(

int

aKey

)

[signal]

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

Parameters:

[in]

aKey

The key that was released (see key specifiers).

---

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

• bpskeyfilter.h