status_t
VariablesView::_ApplyViewStateDescendentNodeInfos(VariablesViewState* viewState,
void* parent, TreeTablePath& path)
{
int32 childCount = fVariableTableModel->CountChildren(parent);
for (int32 i = 0; i < childCount; i++) {
ModelNode* node = (ModelNode*)fVariableTableModel->ChildAt(parent, i);
if (!path.AddComponent(i))
return B_NO_MEMORY;
// apply the node's info, if any
const VariablesViewNodeInfo* nodeInfo = viewState->GetNodeInfo(
node->GetVariable()->ID(), node->GetPath());
if (nodeInfo != NULL) {
fVariableTable->SetNodeExpanded(path, nodeInfo->IsNodeExpanded());
// recurse
status_t error = _ApplyViewStateDescendentNodeInfos(viewState, node,
path);
if (error != B_OK)
return error;
}
path.RemoveLastComponent();
}
return B_OK;
}
status_t
VariablesView::_AddViewStateDescendentNodeInfos(VariablesViewState* viewState,
void* parent, TreeTablePath& path) const
{
int32 childCount = fVariableTableModel->CountChildren(parent);
for (int32 i = 0; i < childCount; i++) {
ModelNode* node = (ModelNode*)fVariableTableModel->ChildAt(parent, i);
if (!path.AddComponent(i))
return B_NO_MEMORY;
// add the node's info
VariablesViewNodeInfo nodeInfo;
nodeInfo.SetNodeExpanded(fVariableTable->IsNodeExpanded(path));
status_t error = viewState->SetNodeInfo(node->GetVariable()->ID(),
node->GetPath(), nodeInfo);
if (error != B_OK)
return error;
// recurse
error = _AddViewStateDescendentNodeInfos(viewState, node, path);
if (error != B_OK)
return error;
path.RemoveLastComponent();
}
return B_OK;
}
void
VariablesView::VariableTableModel::NotifyNodeChanged(ModelNode* node)
{
if (!node->IsHidden()) {
TreeTablePath treePath;
if (_GetTreePath(node, treePath)) {
int32 index = treePath.RemoveLastComponent();
NotifyNodesChanged(treePath, index, 1);
}
}
}