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QwtEventPattern

NAME

QwtEventPattern -

A collection of event patterns.

SYNOPSIS

#include <qwt_event_pattern.h>

Inherited by QwtPicker.

Classes

class KeyPattern
A pattern for key events.
class MousePattern
A pattern for mouse events.

Public Types

enum MousePatternCode { MouseSelect1, MouseSelect2, MouseSelect3, MouseSelect4, MouseSelect5, MouseSelect6, MousePatternCount }

enum KeyPatternCode { KeySelect1, KeySelect2, KeyAbort, KeyLeft, KeyRight, KeyUp, KeyDown, KeyRedo, KeyUndo, KeyHome, KeyPatternCount }

Public Member Functions

QwtEventPattern ()

virtual ~QwtEventPattern ()

void initMousePattern (int numButtons)

void initKeyPattern ()

void setMousePattern (uint pattern, int button, int state=Qt::NoButton)

void setKeyPattern (uint pattern, int key, int state=Qt::NoButton)

void setMousePattern (const QwtArray< MousePattern > &)

void setKeyPattern (const QwtArray< KeyPattern > &)

const QwtArray< MousePattern > & mousePattern () const

const QwtArray< KeyPattern > & keyPattern () const

QwtArray< MousePattern > & mousePattern ()

QwtArray< KeyPattern > & keyPattern ()

bool mouseMatch (uint pattern, const QMouseEvent *) const

bool keyMatch (uint pattern, const QKeyEvent *) const

Protected Member Functions

virtual bool mouseMatch (const MousePattern &, const QMouseEvent *) const

virtual bool keyMatch (const KeyPattern &, const QKeyEvent *) const

Detailed Description

A collection of event patterns.

QwtEventPattern introduces an level of indirection for mouse and keyboard inputs. Those are represented by symbolic names, so the application code can be configured by individual mappings.

See also:

QwtPicker, QwtPickerMachine, QwtPlotZoomer

Member Enumeration Documentation

enum QwtEventPattern::KeyPatternCode

Symbolic keyboard input codes. Default initialization:

*

KeySelect1

 Qt::Key_Return

*

KeySelect2

 Qt::Key_Space

*

KeyAbort

 Qt::Key_Escape

*

KeyLeft

 Qt::Key_Left

*

KeyRight

 Qt::Key_Right

*

KeyUp

 Qt::Key_Up

*

KeyDown

 Qt::Key_Down

*

KeyUndo

 Qt::Key_Minus

*

KeyRedo

 Qt::Key_Plus

*

KeyHome

 Qt::Key_Escape 

enum QwtEventPattern::MousePatternCode

Symbolic mouse input codes. The default initialization for 3 button mice is:

*

MouseSelect1

 Qt::LeftButton

*

MouseSelect2

 Qt::RightButton

*

MouseSelect3

 Qt::MidButton

*

MouseSelect4

 Qt::LeftButton + Qt::ShiftButton

*

MouseSelect5

 Qt::RightButton + Qt::ShiftButton

*

MouseSelect6

 Qt::MidButton + Qt::ShiftButton

The default initialization for 2 button mice is:

*

MouseSelect1

 Qt::LeftButton

*

MouseSelect2

 Qt::RightButton

*

MouseSelect3

 Qt::LeftButton + Qt::AltButton

*

MouseSelect4

 Qt::LeftButton + Qt::ShiftButton

*

MouseSelect5

 Qt::RightButton + Qt::ShiftButton

*

MouseSelect6

 Qt::LeftButton + Qt::AltButton + Qt::ShiftButton

The default initialization for 1 button mice is:

*

MouseSelect1

 Qt::LeftButton

*

MouseSelect2

 Qt::LeftButton + Qt::ControlButton

*

MouseSelect3

 Qt::LeftButton + Qt::AltButton

*

MouseSelect4

 Qt::LeftButton + Qt::ShiftButton

*

MouseSelect5

 Qt::LeftButton + Qt::ControlButton + Qt::ShiftButton

*

MouseSelect6

 Qt::LeftButton + Qt::AltButton + Qt::ShiftButton

See also:

initMousePattern()

Constructor & Destructor Documentation

QwtEventPattern::QwtEventPattern ()Constructor

See also:

MousePatternCode, KeyPatternCode

QwtEventPattern::~QwtEventPattern () [virtual]

Destructor.

Member Function Documentation

void QwtEventPattern::initKeyPattern ()Set default mouse patterns.

See also:

KeyPatternCode

void QwtEventPattern::initMousePattern (int numButtons)Set default mouse patterns, depending on the number of mouse buttons

Parameters:

numButtons Number of mouse buttons ( <= 3 )

See also:

MousePatternCode

bool QwtEventPattern::keyMatch (const KeyPattern & pattern, const QKeyEvent * e) const [protected, virtual]

Compare a key event with an event pattern. A key event matches the pattern when both have the same key value and in the state value the same key flags (Qt::KeyButtonMask) are set.

Parameters:

pattern Key event pattern
e Key event

Returns:

true if matches

See also:

mouseMatch()

bool QwtEventPattern::keyMatch (uint pattern, const QKeyEvent * e) const

Compare a key event with an event pattern. A key event matches the pattern when both have the same key value and in the state value the same key flags (Qt::KeyButtonMask) are set.

Parameters:

pattern Index of the event pattern
e Key event

Returns:

true if matches

See also:

mouseMatch()

QwtArray< QwtEventPattern::KeyPattern > & QwtEventPattern::keyPattern ()

Return Key patterns.

const QwtArray< QwtEventPattern::KeyPattern > & QwtEventPattern::keyPattern () const

Return key patterns.

bool QwtEventPattern::mouseMatch (const MousePattern & pattern, const QMouseEvent * e) const [protected, virtual]

Compare a mouse event with an event pattern. A mouse event matches the pattern when both have the same button value and in the state value the same key flags(Qt::KeyButtonMask) are set.

Parameters:

pattern Mouse event pattern
e Mouse event

Returns:

true if matches

See also:

keyMatch()

bool QwtEventPattern::mouseMatch (uint pattern, const QMouseEvent * e) const

Compare a mouse event with an event pattern. A mouse event matches the pattern when both have the same button value and in the state value the same key flags(Qt::KeyButtonMask) are set.

Parameters:

pattern Index of the event pattern
e Mouse event

Returns:

true if matches

See also:

keyMatch()

QwtArray< QwtEventPattern::MousePattern > & QwtEventPattern::mousePattern ()

Return ,ouse patterns.

const QwtArray< QwtEventPattern::MousePattern > & QwtEventPattern::mousePattern () const

Return mouse patterns.

void QwtEventPattern::setKeyPattern (const QwtArray< KeyPattern > & pattern)

Change the key event patterns.

void QwtEventPattern::setKeyPattern (uint pattern, int key, int state = Qt::NoButton)Change one key pattern

Parameters:

pattern Index of the pattern
key Key
state State

See also:

QKeyEvent

void QwtEventPattern::setMousePattern (const QwtArray< MousePattern > & pattern)

Change the mouse event patterns.

void QwtEventPattern::setMousePattern (uint pattern, int button, int state = Qt::NoButton)Change one mouse pattern

Parameters:

pattern Index of the pattern
button Button
state State

See also:

QMouseEvent

Author

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