本文整理汇总了C++中QQuickItem::transformOrigin方法的典型用法代码示例。如果您正苦于以下问题：C++ QQuickItem::transformOrigin方法的具体用法？C++ QQuickItem::transformOrigin怎么用？C++ QQuickItem::transformOrigin使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QQuickItem的用法示例。
在下文中一共展示了QQuickItem::transformOrigin方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: transition
//.........这里部分代码省略.........
qmlInfo(this) << QQuickParentAnimation::tr("Unable to preserve appearance under complex transform");
ok = false;
}
qreal scale = 1;
qreal rotation = 0;
bool isRotate = (transform.type() == QTransform::TxRotate) || (transform.m11() < 0);
if (ok && !isRotate) {
if (transform.m11() == transform.m22())
scale = transform.m11();
else {
qmlInfo(this) << QQuickParentAnimation::tr("Unable to preserve appearance under non-uniform scale");
ok = false;
}
} else if (ok && isRotate) {
if (transform.m11() == transform.m22())
scale = qSqrt(transform.m11()*transform.m11() + transform.m12()*transform.m12());
else {
qmlInfo(this) << QQuickParentAnimation::tr("Unable to preserve appearance under non-uniform scale");
ok = false;
}
if (scale != 0)
rotation = atan2(transform.m12()/scale, transform.m11()/scale) * 180/M_PI;
else {
qmlInfo(this) << QQuickParentAnimation::tr("Unable to preserve appearance under scale of 0");
ok = false;
}
}
const QPointF &point = transform.map(QPointF(xAction.toValue.toReal(),yAction.toValue.toReal()));
qreal x = point.x();
qreal y = point.y();
if (ok && target->transformOrigin() != QQuickItem::TopLeft) {
qreal w = target->width();
qreal h = target->height();
if (pc->widthIsSet() && i < actions.size() - 1)
w = actions[++i].toValue.toReal();
if (pc->heightIsSet() && i < actions.size() - 1)
h = actions[++i].toValue.toReal();
const QPointF &transformOrigin
= d->computeTransformOrigin(target->transformOrigin(), w,h);
qreal tempxt = transformOrigin.x();
qreal tempyt = transformOrigin.y();
QTransform t;
t.translate(-tempxt, -tempyt);
t.rotate(rotation);
t.scale(scale, scale);
t.translate(tempxt, tempyt);
const QPointF &offset = t.map(QPointF(0,0));
x += offset.x();
y += offset.y();
}
if (ok) {
//qDebug() << x << y << rotation << scale;
xAction.toValue = x;
yAction.toValue = y;
sAction.toValue = sAction.toValue.toReal() * scale;
rAction.toValue = rAction.toValue.toReal() + rotation;
}
}
}
}
if (data->actions.count()) {