/*!
Initialize \a option with the values from this QDial. This method
is useful for subclasses when they need a QStyleOptionSlider, but don't want
to fill in all the information themselves.
\sa QStyleOption::initFrom()
*/
void QDial::initStyleOption(QStyleOptionSlider *option) const
{
if (!option)
return;
Q_D(const QDial);
option->initFrom(this);
option->minimum = d->minimum;
option->maximum = d->maximum;
option->sliderPosition = d->position;
option->sliderValue = d->value;
option->singleStep = d->singleStep;
option->pageStep = d->pageStep;
option->upsideDown = !d->invertedAppearance;
option->notchTarget = d->target;
option->dialWrapping = d->wrapping;
option->subControls = QStyle::SC_All;
option->activeSubControls = QStyle::SC_None;
if (!d->showNotches) {
option->subControls &= ~QStyle::SC_DialTickmarks;
option->tickPosition = QSlider::TicksAbove;
} else {
option->tickPosition = QSlider::NoTicks;
}
option->tickInterval = notchSize();
}
void QDial::calcLines()
{
if ( !d->lines.size() ) {
double r = QMIN( width(), height() ) / 2.0;
int bigLineSize = calcBigLineSize();
double xc = width() / 2.0;
double yc = height() / 2.0;
int ns = notchSize();
int notches = ( maxValue() + ns - 1 - minValue() ) / ns;
d->lines.resize( 2 + 2 * notches );
int smallLineSize = bigLineSize / 2;
int i;
for( i = 0; i <= notches; i++ ) {
double angle = d->wrapping
? m_pi * 3 / 2 - i * 2 * m_pi / notches
: (m_pi * 8 - i * 10 * m_pi / notches) / 6;
double s = sin( angle ); // sin/cos aren't defined as const...
double c = cos( angle );
if ( i == 0 || ( ((ns * i ) % pageStep() ) == 0 ) ) {
d->lines[2*i] = QPoint( (int)( xc + ( r - bigLineSize ) * c ),
(int)( yc - ( r - bigLineSize ) * s ) );
d->lines[2*i+1] = QPoint( (int)( xc + r * c ),
(int)( yc - r * s ) );
} else {
d->lines[2*i] = QPoint( (int)( xc + ( r - 1 - smallLineSize ) * c ),
(int)( yc - ( r - 1 - smallLineSize ) * s ) );
d->lines[2*i+1] = QPoint( (int)( xc + ( r - 1 ) * c ),
(int)( yc -( r - 1 ) * s ) );
}
}
}
}
int QDial::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = QAbstractSlider::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
if (_c == QMetaObject::InvokeMetaMethod) {
if (_id < 5)
qt_static_metacall(this, _c, _id, _a);
_id -= 5;
}
#ifndef QT_NO_PROPERTIES
else if (_c == QMetaObject::ReadProperty) {
void *_v = _a[0];
switch (_id) {
case 0: *reinterpret_cast< bool*>(_v) = wrapping(); break;
case 1: *reinterpret_cast< int*>(_v) = notchSize(); break;
case 2: *reinterpret_cast< qreal*>(_v) = notchTarget(); break;
case 3: *reinterpret_cast< bool*>(_v) = notchesVisible(); break;
}
_id -= 4;
} else if (_c == QMetaObject::WriteProperty) {
void *_v = _a[0];
switch (_id) {
case 0: setWrapping(*reinterpret_cast< bool*>(_v)); break;
case 2: setNotchTarget(*reinterpret_cast< qreal*>(_v)); break;
case 3: setNotchesVisible(*reinterpret_cast< bool*>(_v)); break;
}
_id -= 4;
} else if (_c == QMetaObject::ResetProperty) {
_id -= 4;
} else if (_c == QMetaObject::QueryPropertyDesignable) {
_id -= 4;
} else if (_c == QMetaObject::QueryPropertyScriptable) {
_id -= 4;
} else if (_c == QMetaObject::QueryPropertyStored) {
_id -= 4;
} else if (_c == QMetaObject::QueryPropertyEditable) {
_id -= 4;
} else if (_c == QMetaObject::QueryPropertyUser) {
_id -= 4;
}
#endif // QT_NO_PROPERTIES
return _id;
}
