void QDeclarativeLoaderPrivate::clear()
{
if (ownComponent) {
component->deleteLater();
component = 0;
ownComponent = false;
}
source = QUrl();
if (item) {
if (QDeclarativeItem *qmlItem = qobject_cast<QDeclarativeItem*>(item)) {
QDeclarativeItemPrivate *p =
static_cast<QDeclarativeItemPrivate *>(QGraphicsItemPrivate::get(qmlItem));
p->removeItemChangeListener(this, QDeclarativeItemPrivate::Geometry);
}
// We can't delete immediately because our item may have triggered
// the Loader to load a different item.
if (item->scene()) {
item->scene()->removeItem(item);
} else {
item->setParentItem(0);
item->setVisible(false);
}
item->deleteLater();
item = 0;
}
}
QDeclarativeLoader::~QDeclarativeLoader()
{
Q_D(QDeclarativeLoader);
if (d->item) {
if (QDeclarativeItem *qmlItem = qobject_cast<QDeclarativeItem*>(d->item)) {
QDeclarativeItemPrivate *p =
static_cast<QDeclarativeItemPrivate *>(QGraphicsItemPrivate::get(qmlItem));
p->removeItemChangeListener(d, QDeclarativeItemPrivate::Geometry);
}
}
}
void QDeclarativeBasePositionerPrivate::unwatchChanges(QGraphicsObject* other)
{
if (QGraphicsItemPrivate::get(other)->isDeclarativeItem) {
QDeclarativeItemPrivate *otherPrivate = static_cast<QDeclarativeItemPrivate*>(QGraphicsItemPrivate::get(other));
otherPrivate->removeItemChangeListener(this, watchedChanges);
} else {
Q_Q(QDeclarativeBasePositioner);
QObject::disconnect(other, SIGNAL(widthChanged()), q, SLOT(graphicsWidgetGeometryChanged()));
QObject::disconnect(other, SIGNAL(heightChanged()), q, SLOT(graphicsWidgetGeometryChanged()));
QObject::disconnect(other, SIGNAL(opacityChanged()), q, SLOT(graphicsWidgetGeometryChanged()));
QObject::disconnect(other, SIGNAL(visibleChanged()), q, SLOT(graphicsWidgetGeometryChanged()));
}
}
bool isAnchoredTo(QDeclarativeItem *fromItem, QDeclarativeItem *toItem)
{
Q_ASSERT(dynamic_cast<QDeclarativeItemPrivate*>(QGraphicsItemPrivate::get(fromItem)));
QDeclarativeItemPrivate *fromItemPrivate = static_cast<QDeclarativeItemPrivate*>(QGraphicsItemPrivate::get(fromItem));
QDeclarativeAnchors *anchors = fromItemPrivate->anchors();
return anchors->fill() == toItem
|| anchors->centerIn() == toItem
|| anchors->bottom().item == toItem
|| anchors->top().item == toItem
|| anchors->left().item == toItem
|| anchors->right().item == toItem
|| anchors->verticalCenter().item == toItem
|| anchors->horizontalCenter().item == toItem
|| anchors->baseline().item == toItem;
}
void QDeclarativeAnchorsPrivate::remDepend(QGraphicsObject *item)
{
if (!item)
return;
QGraphicsItemPrivate * itemPrivate = QGraphicsItemPrivate::get(item);
if (itemPrivate->isDeclarativeItem) {
QDeclarativeItemPrivate *p =
static_cast<QDeclarativeItemPrivate *>(itemPrivate);
p->removeItemChangeListener(this, QDeclarativeItemPrivate::Geometry);
} else if(itemPrivate->isWidget) {
Q_Q(QDeclarativeAnchors);
QGraphicsWidget *widget = static_cast<QGraphicsWidget *>(item);
QObject::disconnect(widget, SIGNAL(destroyed(QObject*)), q, SLOT(_q_widgetDestroyed(QObject*)));
QObject::disconnect(widget, SIGNAL(geometryChanged()), q, SLOT(_q_widgetGeometryChanged()));
}
}
void QDeclarativeLoaderPrivate::initResize()
{
Q_Q(QDeclarativeLoader);
if (QDeclarativeItem *qmlItem = qobject_cast<QDeclarativeItem*>(item)) {
QDeclarativeItemPrivate *p =
static_cast<QDeclarativeItemPrivate *>(QGraphicsItemPrivate::get(qmlItem));
p->addItemChangeListener(this, QDeclarativeItemPrivate::Geometry);
// We may override the item's size, so we need to remember
// whether the item provided its own valid size.
itemWidthValid = p->widthValid;
itemHeightValid = p->heightValid;
} else if (item && item->isWidget()) {
QGraphicsWidget *widget = static_cast<QGraphicsWidget*>(item);
widget->installEventFilter(q);
}
_q_updateSize();
}
void QDeclarativeBasePositionerPrivate::unwatchChanges(QDeclarativeItem* other)
{
QDeclarativeItemPrivate *otherPrivate = static_cast<QDeclarativeItemPrivate*>(QGraphicsItemPrivate::get(other));
otherPrivate->removeItemChangeListener(this, watchedChanges);
}
