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QwtEventPattern(3) Qwt User's Guide QwtEventPattern(3)

NAME

QwtEventPattern -

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


QwtEventPattern ()
 
virtual ~QwtEventPattern ()
 
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 ()
 
void setKeyPattern (uint pattern, int key, int state=Qt::NoButton)
 
void setKeyPattern (const QwtArray< KeyPattern > &)
 
void setMousePattern (uint pattern, int button, int state=Qt::NoButton)
 
void setMousePattern (const QwtArray< MousePattern > &)
 

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

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()

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()

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::setMousePattern (uintpattern, intbutton, intstate = Qt::NoButton)

Change one mouse pattern
Parameters:
pattern Index of the pattern
 
button Button
 
state State
See also:
QMouseEvent

Author

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Tue Nov 20 2012 Version 5.2.3