void QEasingCurvePrivate::setType_helper(QEasingCurve::Type newType)
{
qreal amp = -1.0;
qreal period = -1.0;
qreal overshoot = -1.0;
if (config) {
amp = config->_a;
period = config->_p;
overshoot = config->_o;
delete config;
config = 0;
}
if (isConfigFunction(newType) || (amp != -1.0) || (period != -1.0) || (overshoot != -1.0)) {
config = curveToFunctionObject(newType);
if (amp != -1.0)
config->_a = amp;
if (period != -1.0)
config->_p = period;
if (overshoot != -1.0)
config->_o = overshoot;
func = 0;
} else if (newType != QEasingCurve::Custom) {
func = curveToFunc(newType);
}
Q_ASSERT((func == 0) == (config != 0));
type = newType;
}
/*!
Sets the type of the easing curve to \a type.
*/
void QtEasingCurve::setType(Type type)
{
qreal amp = -1.0;
qreal period = -1.0;
if (d_ptr->config) {
amp = d_ptr->config->_a;
period = d_ptr->config->_p;
delete d_ptr->config;
d_ptr->config = 0;
}
if (isConfigFunction(type) || (amp != -1.0) || (period != -1.0)) {
d_ptr->config = curveToFunctionObject(type);
if (amp)
d_ptr->config->_a = amp;
if (period)
d_ptr->config->_p = period;
} else {
d_ptr->func = curveToFunc(type);
if (!d_ptr->func) {
qWarning("QtEasingCurve: Invalid curve type %d", type);
return;
}
}
d_ptr->type = type;
}
qreal QEasingCurveFunction::value(qreal t)
{
QEasingCurve::EasingFunction func = curveToFunc(_t);
return func(t);
}