void QuteKnob::knobChanged(int value)
{
#ifdef USE_WIDGET_MUTEX
widgetLock.lockForWrite();
#endif
double min = property("QCS_minimum").toDouble();
double max = property("QCS_maximum").toDouble();
QDial *knob = static_cast<QDial *>(m_widget);
double normalized = (double) (value - knob->minimum())
/ (double) (knob->maximum() - knob->minimum());
m_value = min + (normalized * (max-min));
// setInternalValue(scaledValue);
m_valueChanged = true;
QPair<QString, double> channelValue(m_channel, m_value);
#ifdef USE_WIDGET_MUTEX
widgetLock.unlock();
#endif
emit newValue(channelValue);
}
void tst_QDial::wrappingCheck()
{
//This tests if dial will wrap past the maximum value back to the minimum
//and vice versa when changing the value with a keypress
QDial dial;
dial.setMinimum(0);
dial.setMaximum(100);
dial.setSingleStep(1);
dial.setWrapping(true);
dial.setValue(99);
dial.show();
{ //set value to maximum but do not wrap
QTest::keyPress(&dial, Qt::Key_Up);
QCOMPARE( dial.value(), 100);
}
{ //step up once more and wrap clockwise to minimum + 1
QTest::keyPress(&dial, Qt::Key_Up);
QCOMPARE( dial.value(), 1);
}
{ //step down once, and wrap anti-clockwise to minimum, then again to maximum - 1
QTest::keyPress(&dial, Qt::Key_Down);
QCOMPARE( dial.value(), 0);
QTest::keyPress(&dial, Qt::Key_Down);
QCOMPARE( dial.value(), 99);
}
{ //when wrapping property is false no wrapping will occur
dial.setWrapping(false);
dial.setValue(100);
QTest::keyPress(&dial, Qt::Key_Up);
QCOMPARE( dial.value(), 100);
dial.setValue(0);
QTest::keyPress(&dial, Qt::Key_Down);
QCOMPARE( dial.value(), 0);
}
{ //When the step is really big or small, wrapping should still behave
dial.setWrapping(true);
dial.setValue(dial.minimum());
dial.setSingleStep(305);
QTest::keyPress(&dial, Qt::Key_Up);
QCOMPARE( dial.value(), 5);
dial.setValue(dial.minimum());
QTest::keyPress(&dial, Qt::Key_Down);
QCOMPARE( dial.value(), 95);
dial.setMinimum(-30);
dial.setMaximum(-4);
dial.setSingleStep(200);
dial.setValue(dial.minimum());
QTest::keyPress(&dial, Qt::Key_Down);
QCOMPARE( dial.value(), -22);
}
}
