Property: improve auto transaction on property change

* Deselect property item in property view on selection change.
* Special handling for label change because of potential label base
subname references.

src/App/Document.cpp

@@ -1018,13 +1018,14 @@ void Document::_checkTransaction(DocumentObject* pcDelObj, const Property *What,
                 if(name && tid>0) {
                     bool ignore = false;
                     if(What) {
-                        if(What->testStatus(Property::Output))
+                        auto parent = What->getContainer();
+                        auto obj = dynamic_cast<DocumentObject*>(parent);
+                        if(!obj)
+                            ignore = true;
+                        else if(What!=&obj->Label &&
+                               (What->testStatus(Property::Output) ||
+                                (parent->getPropertyType(What) & Prop_Output)))
                             ignore = true;
-                        else {
-                            auto parent = What->getContainer();
-                            if(parent && (parent->getPropertyType(What) & Prop_Output))
-                                ignore = true;
-                        }
                     }
                     if(FC_LOG_INSTANCE.isEnabled(FC_LOGLEVEL_LOG)) {
                         if(What) {

src/App/PropertyStandard.cpp

@@ -1348,8 +1348,12 @@ void PropertyString::setValue(const char* newLabel)
     std::vector<std::pair<PropertyXLink*,std::string> > linkChange;
     std::string label;
     auto obj = dynamic_cast<DocumentObject*>(getContainer());
+    bool commit = false;
 
-    if(obj && obj->getNameInDocument() && this==&obj->Label) {
+    if(!GetApplication().isRestoring() && 
+       obj && obj->getNameInDocument() && this==&obj->Label &&
+       !obj->getDocument()->isPerformingTransaction()) 
+    {
         // allow object to control label change
 
         static ParameterGrp::handle _hPGrp;
@@ -1397,6 +1401,17 @@ void PropertyString::setValue(const char* newLabel)
         obj->onBeforeChangeLabel(label);
         newLabel = label.c_str();
         linkChange = PropertyXLink::updateLabel(obj,newLabel);
+
+        if(linkChange.size() && 
+           !obj->getDocument()->hasPendingTransaction() &&
+           !GetApplication().getActiveTransaction()) 
+        {
+            commit = true;
+            std::ostringstream str;
+            str << "Change " << obj->getNameInDocument() << ".Label";
+            GetApplication().setActiveTransaction(str.str().c_str());
+        }
+
     }
 
     aboutToSetValue();
@@ -1405,6 +1420,9 @@ void PropertyString::setValue(const char* newLabel)
 
     for(auto change : linkChange)
         change.first->setSubName(change.second.c_str());
+
+    if(commit)
+        GetApplication().closeActiveTransaction();
 }
 
 void PropertyString::setValue(const std::string &sString)

src/Gui/PropertyView.cpp

@@ -136,6 +136,7 @@ void PropertyView::hideEvent(QHideEvent *ev) {
     // clear the properties before hiding.
     propertyEditorData->buildUp(props);
     propertyEditorView->buildUp(props);
+    clearPropertyItemSelection();
     QWidget::hideEvent(ev);
 }
 
@@ -144,6 +145,16 @@ void PropertyView::showEvent(QShowEvent *ev) {
     QWidget::showEvent(ev);
 }
 
+void PropertyView::clearPropertyItemSelection() {
+    if(App::GetApplication().autoTransaction()) {
+        QModelIndex index;
+        propertyEditorData->clearSelection();
+        propertyEditorData->setCurrentIndex(index);
+        propertyEditorView->clearSelection();
+        propertyEditorView->setCurrentIndex(index);
+    }
+}
+
 void PropertyView::slotRollback() {
     // If auto transaction (BaseApp->Preferences->Document->AutoTransaction) is
     // enabled, PropertyItemDelegate will setup application active transaction
@@ -152,11 +163,7 @@ void PropertyView::slotRollback() {
     // the current active transaction will be closed by design, which cause
     // further editing to be not recorded. Hence, we force unselect any property
     // item on undo/redo
-    QModelIndex index;
-    propertyEditorData->clearSelection();
-    propertyEditorData->setCurrentIndex(index);
-    propertyEditorView->clearSelection();
-    propertyEditorView->setCurrentIndex(index);
+    clearPropertyItemSelection();
 }
 
 void PropertyView::slotChangePropertyData(const App::DocumentObject&, const App::Property& prop)
@@ -230,6 +237,8 @@ void PropertyView::onSelectionChanged(const SelectionChanges& msg)
         msg.Type != SelectionChanges::ClrSelection)
         return;
 
+    clearPropertyItemSelection();
+
     std::set<App::DocumentObject *> objSet;
 
     // group the properties by <name,id>

src/Gui/PropertyView.h

@@ -64,6 +64,7 @@ class PropertyView : public QWidget, public Gui::SelectionObserver
 
     Gui::PropertyEditor::PropertyEditor* propertyEditorView;
     Gui::PropertyEditor::PropertyEditor* propertyEditorData;
+    void clearPropertyItemSelection();
 
 public Q_SLOTS:
     /// Stores a preference for the last tab selected