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); } }