Gui: [skip ci] fixes: Parameter Editor: Problem resizing columns in right panel

src/Gui/DlgParameterImp.cpp

@@ -720,6 +720,20 @@ void ParameterValue::keyPressEvent (QKeyEvent* event)
   }
 }
 
+void ParameterValue::resizeEvent(QResizeEvent* event)
+{
+#if QT_VERSION >= 0x050000
+    QHeaderView* hv = header();
+    hv->setSectionResizeMode(QHeaderView::Stretch);
+#endif
+
+    QTreeWidget::resizeEvent(event);
+
+#if QT_VERSION >= 0x050000
+    hv->setSectionResizeMode(QHeaderView::Interactive);
+#endif
+}
+
 void ParameterValue::onChangeSelectedItem(QTreeWidgetItem* item, int col)
 {
     if (isItemSelected(item) && col > 0)

src/Gui/DlgParameterImp.h

@@ -159,6 +159,7 @@ protected:
     void contextMenuEvent ( QContextMenuEvent* event );
     /** Invokes onDeleteSelectedItem() if the "Del" key was pressed. */
     void keyPressEvent (QKeyEvent* event);
+    void resizeEvent(QResizeEvent*);
 
 protected Q_SLOTS:
     /** Changes the value of the leaf of the selected item. */