QwtPickerClickRectMachine(3) Qwt User's Guide QwtPickerClickRectMachine(3)NAME
QwtPickerClickRectMachine -
A state machine for rectangle selections.
SYNOPSIS
#include <qwt_picker_machine.h>
Inherits QwtPickerMachine.
Public Types
enum Command { Begin, Append, Move, End }
typedef QList< Command > CommandList
Public Member Functions
void reset ()
void setState (int)
int state () const
virtual CommandList transition (const QwtEventPattern &, const QEvent *)
Detailed Description
A state machine for rectangle selections.
Pressing QwtEventPattern::MouseSelect1 starts the selection, releasing it selects the first point. Pressing it again selects the second
point and terminates the selection. Pressing QwtEventPattern::KeySelect1 also starts the selection, a second press selects the first point.
A third one selects the second point and terminates the selection.
See also:
QwtEventPattern::MousePatternCode, QwtEventPattern::KeyPatternCode
Member Enumeration Documentation
enum QwtPickerMachine::Command [inherited]
Commands - the output of the state machine.
Member Function Documentation
void QwtPickerMachine::reset () [inherited]
Set the current state to 0.
void QwtPickerMachine::setState (intstate) [inherited]
Change the current state.
int QwtPickerMachine::state () const [inherited]
Return the current state.
QwtPickerMachine::CommandList QwtPickerClickRectMachine::transition (const QwtEventPattern &eventPattern, const QEvent *e) [virtual]
Transition.
Implements QwtPickerMachine.
Author
Generated automatically by Doxygen for Qwt User's Guide from the source code.
Version 5.2.2 Mon Aug 1 2011 QwtPickerClickRectMachine(3)
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QwtEventPattern(3) Qwt User's Guide 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 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:
o KeySelect1
Qt::Key_Return
o KeySelect2
Qt::Key_Space
o KeyAbort
Qt::Key_Escape
o KeyLeft
Qt::Key_Left
o KeyRight
Qt::Key_Right
o KeyUp
Qt::Key_Up
o KeyDown
Qt::Key_Down
o KeyUndo
Qt::Key_Minus
o KeyRedo
Qt::Key_Plus
o KeyHome
Qt::Key_Escape
enum QwtEventPattern::MousePatternCode
Symbolic mouse input codes. The default initialization for 3 button mice is:
o MouseSelect1
Qt::LeftButton
o MouseSelect2
Qt::RightButton
o MouseSelect3
Qt::MidButton
o MouseSelect4
Qt::LeftButton + Qt::ShiftButton
o MouseSelect5
Qt::RightButton + Qt::ShiftButton
o MouseSelect6
Qt::MidButton + Qt::ShiftButton
The default initialization for 2 button mice is:
o MouseSelect1
Qt::LeftButton
o MouseSelect2
Qt::RightButton
o MouseSelect3
Qt::LeftButton + Qt::AltButton
o MouseSelect4
Qt::LeftButton + Qt::ShiftButton
o MouseSelect5
Qt::RightButton + Qt::ShiftButton
o MouseSelect6
Qt::LeftButton + Qt::AltButton + Qt::ShiftButton
The default initialization for 1 button mice is:
o MouseSelect1
Qt::LeftButton
o MouseSelect2
Qt::LeftButton + Qt::ControlButton
o MouseSelect3
Qt::LeftButton + Qt::AltButton
o MouseSelect4
Qt::LeftButton + Qt::ShiftButton
o MouseSelect5
Qt::LeftButton + Qt::ControlButton + Qt::ShiftButton
o 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
Generated automatically by Doxygen for Qwt User's Guide from the source code.
Version 5.2.2 Mon Aug 1 2011 QwtEventPattern(3)