bool QwtPlotPicker::end(bool ok)
{
ok = QwtPicker::end(ok);
if ( !ok )
return false;
QwtPlot *plot = QwtPlotPicker::plot();
if ( !plot )
return false;
const QwtPolygon &pa = selection();
if ( pa.count() == 0 )
return false;
if ( selectionFlags() & PointSelection )
{
const QwtDoublePoint pos = invTransform(pa[0]);
emit selected(pos);
}
else if ( (selectionFlags() & RectSelection) && pa.count() >= 2 )
{
QPoint p1 = pa[0];
QPoint p2 = pa[int(pa.count() - 1)];
if ( selectionFlags() & CenterToCorner )
{
p1.setX(p1.x() - (p2.x() - p1.x()));
p1.setY(p1.y() - (p2.y() - p1.y()));
}
else if ( selectionFlags() & CenterToRadius )
{
const int radius = qwtMax(qwtAbs(p2.x() - p1.x()),
qwtAbs(p2.y() - p1.y()));
p2.setX(p1.x() + radius);
p2.setY(p1.y() + radius);
p1.setX(p1.x() - radius);
p1.setY(p1.y() - radius);
}
emit selected(invTransform(QRect(p1, p2)).normalized());
}
else
{
QwtArray<QwtDoublePoint> dpa(pa.count());
for ( int i = 0; i < int(pa.count()); i++ )
dpa[i] = invTransform(pa[i]);
emit selected(dpa);
}
return true;
}
int QwtPicker::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = QObject::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
if (_c == QMetaObject::InvokeMetaMethod) {
switch (_id) {
case 0: selected((*reinterpret_cast< const QwtPicker::SelectedPoints(*)>(_a[1]))); break;
case 1: appended((*reinterpret_cast< const QPoint(*)>(_a[1]))); break;
case 2: moved((*reinterpret_cast< const QPoint(*)>(_a[1]))); break;
case 3: changed((*reinterpret_cast< const SelectedPoints(*)>(_a[1]))); break;
}
_id -= 4;
}
#ifndef QT_NO_PROPERTIES
else if (_c == QMetaObject::ReadProperty) {
void *_v = _a[0];
switch (_id) {
case 0: *reinterpret_cast< int*>(_v) = selectionFlags(); break;
case 1: *reinterpret_cast< DisplayMode*>(_v) = trackerMode(); break;
case 2: *reinterpret_cast< QFont*>(_v) = trackerFont(); break;
case 3: *reinterpret_cast< RubberBand*>(_v) = rubberBand(); break;
case 4: *reinterpret_cast< ResizeMode*>(_v) = resizeMode(); break;
case 5: *reinterpret_cast< bool*>(_v) = isEnabled(); break;
case 6: *reinterpret_cast< QPen*>(_v) = trackerPen(); break;
case 7: *reinterpret_cast< QPen*>(_v) = rubberBandPen(); break;
}
_id -= 8;
} else if (_c == QMetaObject::WriteProperty) {
void *_v = _a[0];
switch (_id) {
case 0: setSelectionFlags(*reinterpret_cast< int*>(_v)); break;
case 1: setTrackerMode(*reinterpret_cast< DisplayMode*>(_v)); break;
case 2: setTrackerFont(*reinterpret_cast< QFont*>(_v)); break;
case 3: setRubberBand(*reinterpret_cast< RubberBand*>(_v)); break;
case 4: setResizeMode(*reinterpret_cast< ResizeMode*>(_v)); break;
case 5: setEnabled(*reinterpret_cast< bool*>(_v)); break;
case 6: setTrackerPen(*reinterpret_cast< QPen*>(_v)); break;
case 7: setRubberBandPen(*reinterpret_cast< QPen*>(_v)); break;
}
_id -= 8;
} else if (_c == QMetaObject::ResetProperty) {
_id -= 8;
} else if (_c == QMetaObject::QueryPropertyDesignable) {
_id -= 8;
} else if (_c == QMetaObject::QueryPropertyScriptable) {
_id -= 8;
} else if (_c == QMetaObject::QueryPropertyStored) {
_id -= 8;
} else if (_c == QMetaObject::QueryPropertyEditable) {
_id -= 8;
} else if (_c == QMetaObject::QueryPropertyUser) {
_id -= 8;
}
#endif // QT_NO_PROPERTIES
return _id;
}
void QwtPicker::drawRubberBand(QPainter *painter) const
{
if ( !isActive() || rubberBand() == NoRubberBand ||
rubberBandPen().style() == Qt::NoPen )
{
return;
}
const QRect &pRect = pickRect();
const SelectedPoints &pa = d_data->selection;
if ( selectionFlags() & PointSelection )
{
if ( pa.count() < 1 )
return;
const QPoint pos = pa[0];
switch(rubberBand())
{
case VLineRubberBand:
QwtPainter::drawLine(painter, pos.x(),
pRect.top(), pos.x(), pRect.bottom());
break;
case HLineRubberBand:
QwtPainter::drawLine(painter, pRect.left(),
pos.y(), pRect.right(), pos.y());
break;
case CrossRubberBand:
QwtPainter::drawLine(painter, pos.x(),
pRect.top(), pos.x(), pRect.bottom());
QwtPainter::drawLine(painter, pRect.left(),
pos.y(), pRect.right(), pos.y());
break;
default:
break;
}
}
else if ( selectionFlags() & RectSelection )
{
if ( pa.count() < 2 )
return;
QPoint p1 = pa[0];
QPoint p2 = pa[int(pa.count() - 1)];
if ( selectionFlags() & CenterToCorner )
{
p1.setX(p1.x() - (p2.x() - p1.x()));
p1.setY(p1.y() - (p2.y() - p1.y()));
}
else if ( selectionFlags() & CenterToRadius )
{
const int radius = qwtMax(qwtAbs(p2.x() - p1.x()),
qwtAbs(p2.y() - p1.y()));
p2.setX(p1.x() + radius);
p2.setY(p1.y() + radius);
p1.setX(p1.x() - radius);
p1.setY(p1.y() - radius);
}
#if QT_VERSION < 0x040000
const QRect rect = QRect(p1, p2).normalize();
#else
const QRect rect = QRect(p1, p2).normalized();
#endif
switch(rubberBand())
{
case EllipseRubberBand:
QwtPainter::drawEllipse(painter, rect);
break;
case RectRubberBand:
QwtPainter::drawRect(painter, rect);
break;
default:
break;
}
}
else if ( selectionFlags() & PolygonSelection )
{
if ( rubberBand() == PolygonRubberBand )
painter->drawPolyline(pa);
}
}
