Allow Qt to cleanup its signals.

apps/opencs/model/doc/documentmanager.cpp

@@ -69,7 +69,7 @@ void CSMDoc::DocumentManager::removeDocument (CSMDoc::Document *document)
         throw std::runtime_error ("removing invalid document");
 
     mDocuments.erase (iter);
-    delete document;
+    document->deleteLater();
 
     if (mDocuments.empty())
         emit lastDocumentDeleted();

apps/opencs/view/doc/view.cpp

@@ -32,10 +32,6 @@ void CSVDoc::View::closeEvent (QCloseEvent *event)
         event->ignore();
     else
     {
-        // delete the subviews first
-        for (QList<CSVDoc::SubView *>::iterator iter = mSubViews.begin(); iter != mSubViews.end(); ++iter)
-            delete *iter;
-
         // closeRequest() returns true if last document
         mViewManager.removeDocAndView(mDocument);
     }