QwtEventPattern(3)

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 }
Symbolic mouse input codes.
enum KeyPatternCode { KeySelect1, KeySelect2, KeyAbort, KeyLeft, KeyRight, KeyUp, KeyDown, KeyRedo, KeyUndo, KeyHome, KeyPatternCount }
Symbolic keyboard input codes.

  Public Member Functions
QwtEventPattern ()
virtual ~QwtEventPattern ()
Destructor.
void initMousePattern (int numButtons)
void initKeyPattern ()
void setMousePattern (MousePatternCode, Qt::MouseButton button, Qt::KeyboardModifiers=Qt::NoModifier)
void setKeyPattern (KeyPatternCode, int key, Qt::KeyboardModifiers modifiers=Qt::NoModifier)
void setMousePattern (const QVector< MousePattern > &)
Change the mouse event patterns.
void setKeyPattern (const QVector< KeyPattern > &)
Change the key event patterns.
const QVector< MousePattern > & mousePattern () const
const QVector< KeyPattern > & keyPattern () const
QVector< MousePattern > & mousePattern ()
QVector< KeyPattern > & keyPattern ()
bool mouseMatch (MousePatternCode, const QMouseEvent *) const
Compare a mouse event with an event pattern.
bool keyMatch (KeyPatternCode, const QKeyEvent *) const
Compare a key event with an event pattern.

  Protected Member Functions
virtual bool mouseMatch (const MousePattern &, const QMouseEvent *) const
Compare a mouse event with an event pattern.
virtual bool keyMatch (const KeyPattern &, const QKeyEvent *) const
Compare a key event with an event pattern.

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. Individual settings can be configured using setKeyPattern()

See also:
    setKeyPattern(), setMousePattern()

Enumerator

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.

KeyRedo
    Qt::Key_Plus.

KeyUndo
    Qt::Key_Minus.

KeyHome
    Qt::Key_Escape.

KeyPatternCount
    Number of key patterns.

  enum QwtEventPattern::MousePatternCode

Symbolic mouse input codes. QwtEventPattern implements 3 different settings for mice with 1, 2, or 3 buttons that can be activated using initMousePattern(). The default setting is for 3 button mice.

Individual settings can be configured using setMousePattern().

See also:
    initMousePattern(), setMousePattern(), setKeyPattern()

Enumerator

MouseSelect1
    The default setting for 1, 2 and 3 button mice is:

•   Qt::LeftButton

•   Qt::LeftButton

•   Qt::LeftButton

MouseSelect2
    The default setting for 1, 2 and 3 button mice is:

•   Qt::LeftButton + Qt::ControlModifier

•   Qt::RightButton

•   Qt::RightButton

MouseSelect3
    The default setting for 1, 2 and 3 button mice is:

•   Qt::LeftButton + Qt::AltModifier

•   Qt::LeftButton + Qt::AltModifier

•   Qt::MidButton

MouseSelect4
    The default setting for 1, 2 and 3 button mice is:

•   Qt::LeftButton + Qt::ShiftModifier

•   Qt::LeftButton + Qt::ShiftModifier

•   Qt::LeftButton + Qt::ShiftModifier

MouseSelect5
    The default setting for 1, 2 and 3 button mice is:

•   Qt::LeftButton + Qt::ControlButton | Qt::ShiftModifier

•   Qt::RightButton + Qt::ShiftModifier

•   Qt::RightButton + Qt::ShiftModifier

MouseSelect6
    The default setting for 1, 2 and 3 button mice is:

•   Qt::LeftButton + Qt::AltModifier + Qt::ShiftModifier

•   Qt::LeftButton + Qt::AltModifier | Qt::ShiftModifier

•   Qt::MidButton + Qt::ShiftModifier

MousePatternCount
    Number of mouse patterns.

Constructor & Destructor Documentation

  QwtEventPattern::QwtEventPattern ()
Constructor

See also:
    MousePatternCode, KeyPatternCode

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 (KeyPatternCode code, const QKeyEvent * event) 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:
    code Index of the event pattern
    event Key event

Returns:
    true if matches

See also:
    mouseMatch()

  bool QwtEventPattern::keyMatch (const KeyPattern & pattern, const QKeyEvent * event) 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
    event Key event

Returns:
    true if matches

See also:
    mouseMatch()

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

Returns:
    Key pattern

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

Returns:
    Key pattern

  bool QwtEventPattern::mouseMatch (MousePatternCode code, const QMouseEvent * event) 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:
    code Index of the event pattern
    event Mouse event

Returns:
    true if matches

See also:
    keyMatch()

  bool QwtEventPattern::mouseMatch (const MousePattern & pattern, const QMouseEvent * event) 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
    event Mouse event

Returns:
    true if matches

See also:
    keyMatch()

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

Returns:
    Mouse pattern

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

Returns:
    Mouse pattern

  void QwtEventPattern::setKeyPattern (KeyPatternCode pattern, int key, Qt::KeyboardModifiers modifiers = Qt::NoModifier)
Change one key pattern

Parameters:
    pattern Index of the pattern
    key Key
    modifiers Keyboard modifiers

See also:
    QKeyEvent

  void QwtEventPattern::setMousePattern (MousePatternCode pattern, Qt::MouseButton button, Qt::KeyboardModifiers modifiers = Qt::NoModifier)
Change one mouse pattern

Parameters:
    pattern Index of the pattern
    button Button
    modifiers Keyboard modifiers

See also:
    QMouseEvent

Author

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