bool CanvasPicker::eventFilter( QObject *object, QEvent *event )
{
if ( plot() == NULL || object != plot()->canvas() )
return false;
switch( event->type() )
{
case QEvent::FocusIn:
{
showCursor( true );
break;
}
case QEvent::FocusOut:
{
showCursor( false );
break;
}
case QEvent::Paint:
{
QApplication::postEvent( this, new QEvent( QEvent::User ) );
break;
}
case QEvent::MouseButtonPress:
{
const QMouseEvent *mouseEvent = static_cast<QMouseEvent *>( event );
select( mouseEvent->pos() );
return true;
}
case QEvent::MouseMove:
{
const QMouseEvent *mouseEvent = static_cast<QMouseEvent *>( event );
move( mouseEvent->pos() );
return true;
}
case QEvent::KeyPress:
{
const QKeyEvent *keyEvent = static_cast<QKeyEvent *>( event );
const int delta = 5;
switch( keyEvent->key() )
{
case Qt::Key_Up:
{
shiftCurveCursor( true );
return true;
}
case Qt::Key_Down:
{
shiftCurveCursor( false );
return true;
}
case Qt::Key_Right:
case Qt::Key_Plus:
{
if ( d_selectedCurve )
shiftPointCursor( true );
else
shiftCurveCursor( true );
return true;
}
case Qt::Key_Left:
case Qt::Key_Minus:
{
if ( d_selectedCurve )
shiftPointCursor( false );
else
shiftCurveCursor( true );
return true;
}
// The following keys represent a direction, they are
// organized on the keyboard.
case Qt::Key_1:
{
moveBy( -delta, delta );
break;
}
case Qt::Key_2:
{
moveBy( 0, delta );
break;
}
case Qt::Key_3:
{
moveBy( delta, delta );
break;
}
case Qt::Key_4:
{
moveBy( -delta, 0 );
break;
}
case Qt::Key_6:
{
moveBy( delta, 0 );
break;
}
case Qt::Key_7:
{
moveBy( -delta, -delta );
break;
}
case Qt::Key_8:
{
moveBy( 0, -delta );
break;
}
case Qt::Key_9:
{
moveBy( delta, -delta );
break;
}
default:
break;
}
}
default:
break;
}
return QObject::eventFilter( object, event );
}
bool CanvasPicker::eventFilter(QObject *object, QEvent *e)
{
if ( object != (QObject *)plot()->canvas() )
return false;
switch(e->type())
{
case QEvent::FocusIn:
showCursor(true);
case QEvent::FocusOut:
showCursor(false);
case QEvent::Paint:
{
QApplication::postEvent(this, new QEvent(QEvent::User));
break;
}
case QEvent::MouseButtonPress:
{
select(((QMouseEvent *)e)->pos());
return true;
}
case QEvent::MouseMove:
{
move(((QMouseEvent *)e)->pos());
return true;
}
case QEvent::KeyPress:
{
const int delta = 5;
switch(((const QKeyEvent *)e)->key())
{
case Qt::Key_Up:
shiftCurveCursor(true);
return true;
case Qt::Key_Down:
shiftCurveCursor(false);
return true;
case Qt::Key_Right:
case Qt::Key_Plus:
if ( d_selectedCurve )
shiftPointCursor(true);
else
shiftCurveCursor(true);
return true;
case Qt::Key_Left:
case Qt::Key_Minus:
if ( d_selectedCurve )
shiftPointCursor(false);
else
shiftCurveCursor(true);
return true;
// The following keys represent a direction, they are
// organized on the keyboard.
case Qt::Key_1:
moveBy(-delta, delta);
break;
case Qt::Key_2:
moveBy(0, delta);
break;
case Qt::Key_3:
moveBy(delta, delta);
break;
case Qt::Key_4:
moveBy(-delta, 0);
break;
case Qt::Key_6:
moveBy(delta, 0);
break;
case Qt::Key_7:
moveBy(-delta, -delta);
break;
case Qt::Key_8:
moveBy(0, -delta);
break;
case Qt::Key_9:
moveBy(delta, -delta);
break;
default:
break;
}
}
default:
break;
}
return QObject::eventFilter(object, e);
}
