//--------------------------------------------------------------------------------------------------
/// Makes the destinationSubTreeRoot tree become identical to the tree in sourceSubTreeRoot,
/// calling begin..() end..() to make the UI update accordingly.
/// This assumes that all the items have a pointer an unique PdmObject
//--------------------------------------------------------------------------------------------------
void UiTreeModelPdm::updateModelSubTree(const QModelIndex& modelIdxOfDestinationSubTreeRoot, PdmUiTreeItem* destinationSubTreeRoot, PdmUiTreeItem* sourceSubTreeRoot)
{
// First loop over children in the old ui tree, deleting the ones not present in
// the newUiTree
for (int resultChildIdx = 0; resultChildIdx < destinationSubTreeRoot->childCount() ; ++resultChildIdx)
{
PdmUiTreeItem* oldChild = destinationSubTreeRoot->child(resultChildIdx);
int childIndex = sourceSubTreeRoot->findChildItemIndex(oldChild->dataObject());
if (childIndex == -1) // Not found
{
this->beginRemoveRows(modelIdxOfDestinationSubTreeRoot, resultChildIdx, resultChildIdx);
destinationSubTreeRoot->removeChildren(resultChildIdx, 1);
this->endRemoveRows();
resultChildIdx--;
}
}
// Then loop over the children in the new ui tree, finding the corresponding items in the old tree.
// If they are found, we move them to the correct position.
// If not found, we pulls the item out of the old ui tree, inserting it into the new tree to avoid the default delete operation in ~UiTreeItem()
int sourceChildCount = sourceSubTreeRoot->childCount();
int sourceChildIdx = 0;
for (int resultChildIdx = 0; resultChildIdx < sourceChildCount; ++resultChildIdx, ++sourceChildIdx)
{
PdmUiTreeItem* newChild = sourceSubTreeRoot->child(sourceChildIdx);
int childIndex = destinationSubTreeRoot->findChildItemIndex(newChild->dataObject());
if (childIndex == -1) // Not found
{
this->beginInsertRows(modelIdxOfDestinationSubTreeRoot, resultChildIdx, resultChildIdx);
destinationSubTreeRoot->insertChild(resultChildIdx, newChild);
this->endInsertRows();
sourceSubTreeRoot->removeChildrenNoDelete(sourceChildIdx, 1);
sourceChildIdx--;
}
else if (childIndex != resultChildIdx) // Found, but must be moved
{
assert(childIndex > resultChildIdx);
PdmUiTreeItem* oldChild = destinationSubTreeRoot->child(childIndex);
this->beginMoveRows(modelIdxOfDestinationSubTreeRoot, childIndex, childIndex, modelIdxOfDestinationSubTreeRoot, resultChildIdx);
destinationSubTreeRoot->removeChildrenNoDelete(childIndex, 1);
destinationSubTreeRoot->insertChild(resultChildIdx, oldChild);
this->endMoveRows();
updateModelSubTree( index(resultChildIdx, 0, modelIdxOfDestinationSubTreeRoot), oldChild, newChild);
}
else // Found the corresponding item in the right place.
{
PdmUiTreeItem* oldChild = destinationSubTreeRoot->child(childIndex);
updateModelSubTree( index(resultChildIdx, 0, modelIdxOfDestinationSubTreeRoot), oldChild, newChild);
}
}
}
//--------------------------------------------------------------------------------------------------
/// Makes the olUiTreeRoot tree become identical to the tree in newUiTreeRoot,
/// calling begin..() end..() to make the UI update accordingly.
/// This assumes that all the items have a pointer an unique PdmObject
//--------------------------------------------------------------------------------------------------
void UiTreeModelPdm::updateModelSubTree(const QModelIndex& uiSubTreeRootModelIdx, PdmUiTreeItem* uiModelSubTreeRoot, PdmUiTreeItem* updatedPdmSubTreeRoot)
{
// First loop over children in the old ui tree, deleting the ones not present in
// the newUiTree
for (int i = 0; i < uiModelSubTreeRoot->childCount() ; ++i)
{
PdmUiTreeItem* oldChild = uiModelSubTreeRoot->child(i);
int childIndex = updatedPdmSubTreeRoot->findChildItemIndex(oldChild->dataObject());
if (childIndex == -1) // Not found
{
this->beginRemoveRows(uiSubTreeRootModelIdx, i, i);
uiModelSubTreeRoot->removeChildren(i, 1);
this->endRemoveRows();
i--;
}
}
// Then loop over the children in the new ui tree, finding the corresponding items in the old tree.
// If they are found, we move them to the correct position.
// If not found, we pulls the item out of the old ui tree, inserting it into the old tree.
for (int i = 0; i < updatedPdmSubTreeRoot->childCount() ; ++i)
{
PdmUiTreeItem* newChild = updatedPdmSubTreeRoot->child(i);
int childIndex = uiModelSubTreeRoot->findChildItemIndex(newChild->dataObject());
if (childIndex == -1) // Not found
{
this->beginInsertRows(uiSubTreeRootModelIdx, i, i);
uiModelSubTreeRoot->insertChild(i, newChild);
this->endInsertRows();
updatedPdmSubTreeRoot->removeChildrenNoDelete(i, 1);
i--;
}
else if (childIndex != i) // Found, but must be moved
{
assert(childIndex > i);
PdmUiTreeItem* oldChild = uiModelSubTreeRoot->child(childIndex);
this->beginMoveRows(uiSubTreeRootModelIdx, childIndex, childIndex, uiSubTreeRootModelIdx, i);
uiModelSubTreeRoot->removeChildrenNoDelete(childIndex, 1);
uiModelSubTreeRoot->insertChild(i, oldChild);
this->endMoveRows();
updateModelSubTree( index(i, 0, uiSubTreeRootModelIdx) ,oldChild, newChild);
}
else // Found the corresponding item in the right place.
{
PdmUiTreeItem* oldChild = uiModelSubTreeRoot->child(childIndex);
updateModelSubTree( index(i, 0, uiSubTreeRootModelIdx) ,oldChild, newChild);
}
}
}
//--------------------------------------------------------------------------------------------------
/// Refreshes the UI-tree below the supplied root PdmObject
//--------------------------------------------------------------------------------------------------
void UiTreeModelPdm::updateUiSubTree(PdmObject* pdmRoot)
{
// Build the new "Correct" Tree
PdmUiTreeItem* tempUpdatedPdmTree = UiTreeItemBuilderPdm::buildViewItems(NULL, -1, pdmRoot);
// Find the corresponding entry for "root" in the existing Ui tree
QModelIndex uiSubTreeRootModelIdx = getModelIndexFromPdmObject(pdmRoot);
PdmUiTreeItem* uiModelSubTreeRoot = NULL;
if (uiSubTreeRootModelIdx.isValid())
{
uiModelSubTreeRoot = getTreeItemFromIndex(uiSubTreeRootModelIdx);
}
else
{
uiModelSubTreeRoot = m_treeItemRoot;
}
updateModelSubTree(uiSubTreeRootModelIdx, uiModelSubTreeRoot, tempUpdatedPdmTree);
delete tempUpdatedPdmTree;
}
