diff --git a/src/dialogs/app/dialoghistory.cpp b/src/dialogs/app/dialoghistory.cpp
index 2f97b8367..756cf7982 100644
--- a/src/dialogs/app/dialoghistory.cpp
+++ b/src/dialogs/app/dialoghistory.cpp
@@ -174,6 +174,7 @@ QString DialogHistory::Record(const VToolRecord &tool)
     switch ( tool.getTypeTool() )
     {
         case Tool::ArrowTool:
+            Q_UNREACHABLE();
             break;
         case Tool::SinglePointTool:
         {
@@ -435,16 +436,22 @@ QString DialogHistory::Record(const VToolRecord &tool)
         //Because "history" not only show history of pattern, but help restore current data for each pattern's piece, we
         //need add record about details and nodes, but don't show them.
         case Tool::Detail:
+            Q_UNREACHABLE();
             break;
         case Tool::UnionDetails:
+            Q_UNREACHABLE();
             break;
         case Tool::NodeArc:
+            Q_UNREACHABLE();
             break;
         case Tool::NodePoint:
+            Q_UNREACHABLE();
             break;
         case Tool::NodeSpline:
+            Q_UNREACHABLE();
             break;
         case Tool::NodeSplinePath:
+            Q_UNREACHABLE();
             break;
         default:
             qWarning()<<tr("Got wrong tool type. Ignore.");
diff --git a/src/dialogs/app/dialogincrements.cpp b/src/dialogs/app/dialogincrements.cpp
index 796c4ee21..65a530856 100644
--- a/src/dialogs/app/dialogincrements.cpp
+++ b/src/dialogs/app/dialogincrements.cpp
@@ -426,7 +426,7 @@ void DialogIncrements::cellChanged ( qint32 row, qint32 column )
     this->row = row;
     switch (column)
     {
-        case 0:
+        case 0: // name
             item = ui->tableWidgetIncrement->item(row, 0);
             id = qvariant_cast<quint32>(item->data(Qt::UserRole));
             domElement = doc->elementById(QString().setNum(id));
@@ -439,7 +439,7 @@ void DialogIncrements::cellChanged ( qint32 row, qint32 column )
                 emit haveLiteChange();
             }
             break;
-        case 2:
+        case 2: // base
             itemName = ui->tableWidgetIncrement->item(row, 0);
             item = ui->tableWidgetIncrement->item(row, column);
             id = qvariant_cast<quint32>(itemName->data(Qt::UserRole));
@@ -461,7 +461,7 @@ void DialogIncrements::cellChanged ( qint32 row, qint32 column )
                 }
             }
             break;
-        case 3:
+        case 3: // ksize
             itemName = ui->tableWidgetIncrement->item(row, 0);
             item = ui->tableWidgetIncrement->item(row, column);
             id = qvariant_cast<quint32>(itemName->data(Qt::UserRole));
@@ -474,7 +474,7 @@ void DialogIncrements::cellChanged ( qint32 row, qint32 column )
                 emit haveLiteChange();
             }
             break;
-        case 4:
+        case 4: // kgrowth
             itemName = ui->tableWidgetIncrement->item(row, 0);
             item = ui->tableWidgetIncrement->item(row, column);
             id = qvariant_cast<quint32>(itemName->data(Qt::UserRole));
@@ -487,7 +487,7 @@ void DialogIncrements::cellChanged ( qint32 row, qint32 column )
                 emit haveLiteChange();
             }
             break;
-        case 5:
+        case 5: // description
             itemName = ui->tableWidgetIncrement->item(row, 0);
             item = ui->tableWidgetIncrement->item(row, column);
             id = qvariant_cast<quint32>(itemName->data(Qt::UserRole));