Dear All,
Find below, in my opinion, a better way of removing nodes in Data Manager.
The current approach does not really release memory (see e.g. the memory
indicator)
Please try it out and let me know if I was right or wrong
thank you!
sebastian
void QmitkDataManagerView::RemoveSelectedNodes( bool )
{
QModelIndexList indexesOfSelectedRows =
m_NodeTreeView->selectionModel()->selectedRows();
if(indexesOfSelectedRows.size() < 1)
{
return;
}
std::vector<mitk::DataNode*> selectedNodes;
QString question = tr("Do you really want to remove ");
for (QModelIndexList::iterator it = indexesOfSelectedRows.begin()
; it != indexesOfSelectedRows.end(); it++)
{
mitk::DataNode* node = 0;
node = m_NodeTreeModel->GetNode(*it);
// if node is not defined or if the node contains geometry data do
not remove it
if ( node != 0 /*& strcmp(node->GetData()->GetNameOfClass(),
"Geometry2DData") != 0*/ )
{
selectedNodes.push_back(node);
question.append(QString::fromStdString(node->GetName()));
question.append(", ");
}
}
// remove the last two characters = ", "
question = question.remove(question.size()-2, 2);
question.append(" from data storage?");
QMessageBox::StandardButton answerButton = QMessageBox::question(
m_Parent
, tr("DataManager")
, question
, QMessageBox::Yes | QMessageBox::No, QMessageBox::Yes);
if(answerButton == QMessageBox::Yes)
{
for (std::vector<mitk::DataNode*>::iterator it = selectedNodes.begin()
; it != selectedNodes.end(); it++)
{
mitk::DataNode::Pointer node = *it;
this->GetDataStorage()->Remove(node);
node->SetData(NULL);
}
this->GlobalReinit(false);
}
}
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