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# QwtEventPattern Class Reference

Inheritance diagram for QwtEventPattern:

[legend]
List of all members.

## 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

Definition at line 28 of file qwt_event_pattern.h.

## 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
## Classes
class | KeyPattern
| A pattern for key events. More...
class | MousePattern
| A pattern for mouse events. More...

## 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 Definition at line 118 of file qwt_event_pattern.h.

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() Definition at line 79 of file qwt_event_pattern.h.

## Constructor & Destructor Documentation

QwtEventPattern::QwtEventPattern | ( |  | ) |

| Constructor See also: MousePatternCode, KeyPatternCode Definition at line 19 of file qwt_event_pattern.cpp. References initKeyPattern(), and initMousePattern().

QwtEventPattern::~QwtEventPattern | ( |  | ) | `[virtual]`

| Destructor. Definition at line 28 of file qwt_event_pattern.cpp.

## Member Function Documentation

void QwtEventPattern::initKeyPattern | ( |  | ) |

| Set default mouse patterns. See also: KeyPatternCode Definition at line 88 of file qwt_event_pattern.cpp. References setKeyPattern(). Referenced by QwtEventPattern().

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 Definition at line 38 of file qwt_event_pattern.cpp. References setMousePattern(). Referenced by QwtEventPattern().

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() Definition at line 272 of file qwt_event_pattern.cpp. References QwtEventPattern::KeyPattern::key, and QwtEventPattern::KeyPattern::state.

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() Definition at line 248 of file qwt_event_pattern.cpp. Referenced by QwtPlotZoomer::widgetKeyPressEvent(), and QwtPicker::widgetKeyPressEvent().

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

| Return Key patterns. Definition at line 175 of file qwt_event_pattern.cpp.

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

| Return key patterns. Definition at line 163 of file qwt_event_pattern.cpp.

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() Definition at line 217 of file qwt_event_pattern.cpp. References QwtEventPattern::MousePattern::button, and QwtEventPattern::MousePattern::state.

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() Definition at line 193 of file qwt_event_pattern.cpp. Referenced by QwtPickerPolygonMachine::transition(), QwtPickerDragRectMachine::transition(), QwtPickerClickRectMachine::transition(), QwtPickerDragPointMachine::transition(), QwtPickerClickPointMachine::transition(), and QwtPlotZoomer::widgetMouseReleaseEvent().

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

| Return ,ouse patterns. Definition at line 169 of file qwt_event_pattern.cpp.

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

| Return mouse patterns. Definition at line 156 of file qwt_event_pattern.cpp.

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

| Change the key event patterns. Definition at line 149 of file qwt_event_pattern.cpp.

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 Definition at line 133 of file qwt_event_pattern.cpp. Referenced by initKeyPattern().

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

| Change the mouse event patterns. Definition at line 143 of file qwt_event_pattern.cpp.

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 Definition at line 115 of file qwt_event_pattern.cpp. Referenced by initMousePattern().