QwtEventPattern(3) 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 KeyPatternCode { KeySelect1, KeySelect2, KeyAbort, KeyLeft, KeyRight, KeyUp, KeyDown, KeyRedo, KeyUndo, KeyHome, KeyPatternCount }

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

Public Member Functions


void initKeyPattern ()

void initMousePattern (int numButtons)

bool keyMatch (uint pattern, const QKeyEvent *) const

const QwtArray< KeyPattern > & keyPattern () const

QwtArray< KeyPattern > & keyPattern ()

bool mouseMatch (uint pattern, const QMouseEvent *) const

const QwtArray< MousePattern > & mousePattern () const

QwtArray< MousePattern > & mousePattern ()

QwtEventPattern ()

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

void setKeyPattern (const QwtArray< KeyPattern > &)

void setMousePattern (const QwtArray< MousePattern > &)

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

virtual ~QwtEventPattern ()

Protected Member Functions


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

virtual bool mouseMatch (const MousePattern &, const QMouseEvent *) 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 (intnumButtons)Set default mouse patterns, depending on the number of mouse buttons

Parameters:

numButtons Number of mouse buttons ( <= 3 )

See also:

MousePatternCode

bool QwtEventPattern::keyMatch (uintpattern, 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()

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()

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

Return key patterns.

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

Return Key patterns.

bool QwtEventPattern::mouseMatch (uintpattern, 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()

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()

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

Return ,ouse patterns.

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

Return mouse patterns.

void QwtEventPattern::setKeyPattern (uintpattern, intkey, intstate = Qt::NoButton)Change one key pattern

Parameters:

pattern Index of the pattern
key Key
state State

See also:

QKeyEvent

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

Change the key event patterns.

void QwtEventPattern::setMousePattern (uintpattern, intbutton, intstate = Qt::NoButton)Change one mouse pattern

Parameters:

pattern Index of the pattern
button Button
state State

See also:

QMouseEvent

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

Change the mouse event patterns.

Author

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