void SharedUiItemsTreeModel::changeItem(
SharedUiItem newItem, SharedUiItem oldItem, QString idQualifier) {
if (!itemQualifierFilter().isEmpty()
&& !itemQualifierFilter().contains(idQualifier))
return;
//qDebug() << "SharedUiItemsTreeModel::changeItem" << newItem.id()
// << oldItem.id() << idQualifier;
if (newItem.isNull()) {
if (!oldItem.isNull()) { // delete
QModelIndex oldIndex = indexOf(oldItem);
//qDebug() << "delete" << newItem << oldItem << oldIndex.isValid();
if (oldIndex.isValid()) {
removeRows(treeItemByIndex(oldIndex)->row(), 1, oldIndex.parent());
}
} else {
// ignore changeItem(null,null)
}
} else {
if (oldItem.isNull()) {
// if an item with same id exists, change create into update
TreeItem *treeItem = _itemsIndex.value(newItem.qualifiedId());
if (treeItem)
oldItem = treeItem->item();
} else {
// if no item with oldItem id exists, change update into create
TreeItem *treeItem = _itemsIndex.value(oldItem.qualifiedId());
if (!treeItem)
oldItem = SharedUiItem();
}
if (oldItem.isNull()) { // create
//qDebug() << "create" << newItem << oldItem; // << _itemsIndex.keys();
QModelIndex parent;
int row = -1; // -1 will be replaced by size() in adjustTreeItemAndRow()
determineItemPlaceInTree(newItem, &parent, &row);
TreeItem *parentTreeItem = treeItemByIndex(parent);
adjustTreeItemAndRow(&parentTreeItem, &row);
beginInsertRows(parent, row, row);
new TreeItem(this, newItem, parentTreeItem, row);
endInsertRows();
} else { // update (incl. rename)
//qDebug() << "update" << newItem << oldItem;
QModelIndex oldIndex = indexOf(oldItem);
TreeItem *treeItem = treeItemByIndex(oldIndex);
QModelIndex oldParent = oldIndex.parent(), newParent = oldParent;
QString newId = newItem.qualifiedId(), oldId = oldItem.qualifiedId();
int newRow = -1; // -1 will be replaced by size() in adjustTreeItemAndRow()
determineItemPlaceInTree(newItem, &newParent, &newRow);
TreeItem *newParentTreeItem = treeItemByIndex(newParent);
adjustTreeItemAndRow(&newParentTreeItem, &newRow);
treeItem->item() = newItem;
updateIndexIfIdChanged(newId, oldId, treeItem);
emit dataChanged(oldIndex, oldIndex);
// LATER make it possible for determineItemPlaceInTree to change row without changing parent
if (newParent != oldParent) { // need to move item in the tree
if (newParentTreeItem->isDescendantOf(treeItem)) {
qDebug() << "SharedUiItemsTreeModel::changeItem denies item moving "
"because new parent would be a descendant of moved "
"child.";
} else {
//qDebug() << "reparenting:" << treeItem->item().id()
// <<"parent:" << oldParent << treeItem
// << treeItem->row() << "->" << newParent
// << newParentTreeItem << newRow << "/"
// << newParentTreeItem->childrenCount();
//qDebug() << " root:" << _root << _root->item().id();
Q_ASSERT_X(beginMoveRows(
oldParent, treeItem->row(), treeItem->row(),
newParent, newRow),
"SharedUiItemsTreeModel::changeItem",
"inconsistent reparenting according to beginMoveRows");
newParentTreeItem->adoptChild(treeItem, newRow);
updateIndexIfIdChanged(newId, oldId, treeItem); // LATER not sure needed
endMoveRows();
}
}
}
}
emit itemChanged(newItem, oldItem);
}
