QwtPickerClickRectMachine - Man Page


QwtPickerClickRectMachine ā€”

A state machine for rectangle selections. Ā 


#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]


Implements QwtPickerMachine.


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Mon Aug 1 2011 Version 5.2.2 Qwt User's Guide