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33fc476d89
* require qwt >=6.2 (and fallback to internal 6.3 if system's qwt doesn't suffice) * debian doesn't have qwt for Qt6 and won't have it for trixie
543 lines
14 KiB
C++
543 lines
14 KiB
C++
/******************************************************************************
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* Qwt Widget Library
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* Copyright (C) 1997 Josef Wilgen
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* Copyright (C) 2002 Uwe Rathmann
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the Qwt License, Version 1.0
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*****************************************************************************/
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#include "qwt_picker_machine.h"
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#include "qwt_event_pattern.h"
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#include <qevent.h>
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//! Constructor
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QwtPickerMachine::QwtPickerMachine( SelectionType type )
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: m_selectionType( type )
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, m_state( 0 )
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{
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}
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//! Destructor
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QwtPickerMachine::~QwtPickerMachine()
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{
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}
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//! Return the selection type
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QwtPickerMachine::SelectionType QwtPickerMachine::selectionType() const
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{
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return m_selectionType;
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}
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//! Return the current state
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int QwtPickerMachine::state() const
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{
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return m_state;
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}
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//! Change the current state
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void QwtPickerMachine::setState( int state )
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{
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m_state = state;
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}
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//! Set the current state to 0.
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void QwtPickerMachine::reset()
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{
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setState( 0 );
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}
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//! Constructor
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QwtPickerTrackerMachine::QwtPickerTrackerMachine():
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QwtPickerMachine( NoSelection )
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{
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}
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//! Transition
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QList< QwtPickerMachine::Command > QwtPickerTrackerMachine::transition(
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const QwtEventPattern&, const QEvent* e )
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{
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QList< QwtPickerMachine::Command > cmdList;
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switch ( e->type() )
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{
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case QEvent::Enter:
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case QEvent::MouseMove:
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{
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if ( state() == 0 )
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{
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cmdList += Begin;
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cmdList += Append;
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setState( 1 );
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}
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else
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{
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cmdList += Move;
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}
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break;
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}
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case QEvent::Leave:
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{
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cmdList += Remove;
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cmdList += End;
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setState( 0 );
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}
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default:
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break;
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}
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return cmdList;
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}
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//! Constructor
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QwtPickerClickPointMachine::QwtPickerClickPointMachine():
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QwtPickerMachine( PointSelection )
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{
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}
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//! Transition
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QList< QwtPickerMachine::Command > QwtPickerClickPointMachine::transition(
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const QwtEventPattern& eventPattern, const QEvent* event )
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{
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QList< QwtPickerMachine::Command > cmdList;
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switch ( event->type() )
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{
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case QEvent::MouseButtonPress:
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{
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if ( eventPattern.mouseMatch( QwtEventPattern::MouseSelect1,
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static_cast< const QMouseEvent* >( event ) ) )
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{
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cmdList += Begin;
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cmdList += Append;
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cmdList += End;
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}
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break;
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}
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case QEvent::KeyPress:
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{
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const QKeyEvent* keyEvent = static_cast< const QKeyEvent* > ( event );
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if ( eventPattern.keyMatch( QwtEventPattern::KeySelect1, keyEvent ) )
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{
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if ( !keyEvent->isAutoRepeat() )
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{
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cmdList += Begin;
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cmdList += Append;
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cmdList += End;
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}
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}
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break;
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}
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default:
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break;
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}
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return cmdList;
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}
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//! Constructor
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QwtPickerDragPointMachine::QwtPickerDragPointMachine():
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QwtPickerMachine( PointSelection )
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{
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}
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//! Transition
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QList< QwtPickerMachine::Command > QwtPickerDragPointMachine::transition(
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const QwtEventPattern& eventPattern, const QEvent* event )
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{
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QList< QwtPickerMachine::Command > cmdList;
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switch ( event->type() )
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{
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case QEvent::MouseButtonPress:
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{
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if ( eventPattern.mouseMatch( QwtEventPattern::MouseSelect1,
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static_cast< const QMouseEvent* >( event ) ) )
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{
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if ( state() == 0 )
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{
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cmdList += Begin;
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cmdList += Append;
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setState( 1 );
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}
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}
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break;
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}
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case QEvent::MouseMove:
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case QEvent::Wheel:
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{
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if ( state() != 0 )
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cmdList += Move;
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break;
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}
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case QEvent::MouseButtonRelease:
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{
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if ( state() != 0 )
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{
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cmdList += End;
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setState( 0 );
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}
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break;
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}
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case QEvent::KeyPress:
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{
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const QKeyEvent* keyEvent = static_cast< const QKeyEvent* > ( event );
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if ( eventPattern.keyMatch( QwtEventPattern::KeySelect1, keyEvent ) )
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{
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if ( !keyEvent->isAutoRepeat() )
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{
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if ( state() == 0 )
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{
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cmdList += Begin;
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cmdList += Append;
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setState( 1 );
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}
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else
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{
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cmdList += End;
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setState( 0 );
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}
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}
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}
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break;
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}
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default:
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break;
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}
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return cmdList;
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}
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//! Constructor
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QwtPickerClickRectMachine::QwtPickerClickRectMachine():
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QwtPickerMachine( RectSelection )
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{
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}
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//! Transition
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QList< QwtPickerMachine::Command > QwtPickerClickRectMachine::transition(
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const QwtEventPattern& eventPattern, const QEvent* event )
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{
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QList< QwtPickerMachine::Command > cmdList;
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switch ( event->type() )
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{
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case QEvent::MouseButtonPress:
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{
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if ( eventPattern.mouseMatch( QwtEventPattern::MouseSelect1,
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static_cast< const QMouseEvent* >( event ) ) )
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{
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switch ( state() )
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{
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case 0:
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{
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cmdList += Begin;
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cmdList += Append;
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setState( 1 );
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break;
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}
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case 1:
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{
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// Uh, strange we missed the MouseButtonRelease
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break;
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}
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default:
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{
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cmdList += End;
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setState( 0 );
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}
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}
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}
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break;
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}
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case QEvent::MouseMove:
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case QEvent::Wheel:
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{
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if ( state() != 0 )
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cmdList += Move;
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break;
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}
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case QEvent::MouseButtonRelease:
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{
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if ( eventPattern.mouseMatch( QwtEventPattern::MouseSelect1,
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static_cast< const QMouseEvent* >( event ) ) )
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{
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if ( state() == 1 )
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{
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cmdList += Append;
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setState( 2 );
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}
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}
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break;
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}
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case QEvent::KeyPress:
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{
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const QKeyEvent* keyEvent = static_cast< const QKeyEvent* > ( event );
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if ( eventPattern.keyMatch( QwtEventPattern::KeySelect1, keyEvent ) )
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{
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if ( !keyEvent->isAutoRepeat() )
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{
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if ( state() == 0 )
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{
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cmdList += Begin;
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cmdList += Append;
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setState( 1 );
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}
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else
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{
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if ( state() == 1 )
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{
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cmdList += Append;
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setState( 2 );
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}
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else if ( state() == 2 )
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{
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cmdList += End;
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setState( 0 );
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}
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}
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}
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}
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break;
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}
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default:
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break;
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}
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return cmdList;
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}
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//! Constructor
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QwtPickerDragRectMachine::QwtPickerDragRectMachine():
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QwtPickerMachine( RectSelection )
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{
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}
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//! Transition
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QList< QwtPickerMachine::Command > QwtPickerDragRectMachine::transition(
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const QwtEventPattern& eventPattern, const QEvent* event )
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{
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QList< QwtPickerMachine::Command > cmdList;
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switch ( event->type() )
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{
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case QEvent::MouseButtonPress:
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{
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if ( eventPattern.mouseMatch( QwtEventPattern::MouseSelect1,
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static_cast< const QMouseEvent* >( event ) ) )
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{
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if ( state() == 0 )
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{
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cmdList += Begin;
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cmdList += Append;
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cmdList += Append;
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setState( 2 );
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}
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}
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break;
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}
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case QEvent::MouseMove:
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case QEvent::Wheel:
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{
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if ( state() != 0 )
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cmdList += Move;
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break;
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}
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case QEvent::MouseButtonRelease:
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{
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if ( state() == 2 )
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{
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cmdList += End;
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setState( 0 );
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}
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break;
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}
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case QEvent::KeyPress:
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{
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if ( eventPattern.keyMatch( QwtEventPattern::KeySelect1,
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static_cast< const QKeyEvent* > ( event ) ) )
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{
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if ( state() == 0 )
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{
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cmdList += Begin;
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cmdList += Append;
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cmdList += Append;
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setState( 2 );
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}
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else
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{
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cmdList += End;
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setState( 0 );
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}
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}
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break;
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}
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default:
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break;
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}
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return cmdList;
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}
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//! Constructor
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QwtPickerPolygonMachine::QwtPickerPolygonMachine():
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QwtPickerMachine( PolygonSelection )
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{
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}
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//! Transition
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QList< QwtPickerMachine::Command > QwtPickerPolygonMachine::transition(
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const QwtEventPattern& eventPattern, const QEvent* event )
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{
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QList< QwtPickerMachine::Command > cmdList;
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switch ( event->type() )
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{
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case QEvent::MouseButtonPress:
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{
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if ( eventPattern.mouseMatch( QwtEventPattern::MouseSelect1,
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static_cast< const QMouseEvent* >( event ) ) )
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{
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if ( state() == 0 )
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{
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cmdList += Begin;
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cmdList += Append;
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cmdList += Append;
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setState( 1 );
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}
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else
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{
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cmdList += Append;
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}
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}
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if ( eventPattern.mouseMatch( QwtEventPattern::MouseSelect2,
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static_cast< const QMouseEvent* >( event ) ) )
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{
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if ( state() == 1 )
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{
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cmdList += End;
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setState( 0 );
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}
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}
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break;
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}
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case QEvent::MouseMove:
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case QEvent::Wheel:
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{
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if ( state() != 0 )
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cmdList += Move;
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break;
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}
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case QEvent::KeyPress:
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{
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const QKeyEvent* keyEvent = static_cast< const QKeyEvent* > ( event );
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if ( eventPattern.keyMatch( QwtEventPattern::KeySelect1, keyEvent ) )
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{
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if ( !keyEvent->isAutoRepeat() )
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{
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if ( state() == 0 )
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{
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cmdList += Begin;
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cmdList += Append;
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cmdList += Append;
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setState( 1 );
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}
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else
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{
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cmdList += Append;
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}
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}
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}
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else if ( eventPattern.keyMatch( QwtEventPattern::KeySelect2, keyEvent ) )
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{
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if ( !keyEvent->isAutoRepeat() )
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{
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if ( state() == 1 )
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{
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cmdList += End;
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setState( 0 );
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}
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}
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}
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break;
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}
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default:
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break;
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}
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return cmdList;
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}
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//! Constructor
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QwtPickerDragLineMachine::QwtPickerDragLineMachine():
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QwtPickerMachine( PolygonSelection )
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{
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}
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//! Transition
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QList< QwtPickerMachine::Command > QwtPickerDragLineMachine::transition(
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const QwtEventPattern& eventPattern, const QEvent* event )
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{
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QList< QwtPickerMachine::Command > cmdList;
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switch( event->type() )
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{
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case QEvent::MouseButtonPress:
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{
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if ( eventPattern.mouseMatch( QwtEventPattern::MouseSelect1,
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static_cast< const QMouseEvent* >( event ) ) )
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{
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if ( state() == 0 )
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{
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cmdList += Begin;
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cmdList += Append;
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cmdList += Append;
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setState( 1 );
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}
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}
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break;
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}
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case QEvent::KeyPress:
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{
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if ( eventPattern.keyMatch( QwtEventPattern::KeySelect1,
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static_cast< const QKeyEvent* > ( event ) ) )
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{
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if ( state() == 0 )
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{
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cmdList += Begin;
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cmdList += Append;
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cmdList += Append;
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setState( 1 );
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}
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else
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{
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cmdList += End;
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setState( 0 );
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}
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}
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break;
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}
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case QEvent::MouseMove:
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case QEvent::Wheel:
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{
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if ( state() != 0 )
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cmdList += Move;
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break;
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}
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case QEvent::MouseButtonRelease:
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{
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if ( state() != 0 )
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{
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cmdList += End;
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setState( 0 );
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}
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}
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default:
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break;
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}
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return cmdList;
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}
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