Show layout settings dialog if a layout was not created.

--HG--
branch : feature

src/app/mainwindow.cpp

@@ -1340,6 +1340,11 @@ void MainWindow::ActionLayout(bool checked)
         ui->dockWidgetToolOptions->setVisible(false);
 
         ShowPaper(ui->listWidget->currentRow());
+
+        if (scenes.isEmpty())
+        {
+            ui->toolButtonLayoutSettings->click();
+        }
     }
     else
     {

src/app/mainwindowsnogui.cpp

@@ -57,6 +57,9 @@ MainWindowsNoGUI::~MainWindowsNoGUI()
 //---------------------------------------------------------------------------------------------------------------------
 void MainWindowsNoGUI::ToolLayoutSettings(bool checked)
 {
+    QToolButton *tButton = qobject_cast< QToolButton * >(this->sender());
+    SCASSERT(tButton != nullptr)
+
     if (checked)
     {
         VLayoutGenerator lGenerator(this);
@@ -65,6 +68,7 @@ void MainWindowsNoGUI::ToolLayoutSettings(bool checked)
         DialogLayoutSettings layout(&lGenerator, this);
         if (layout.exec() == QDialog::Rejected)
         {
+            tButton->setChecked(false);
             return;
         }
 
@@ -98,15 +102,13 @@ void MainWindowsNoGUI::ToolLayoutSettings(bool checked)
             default:
                 break;
         }
+        tButton->setChecked(false);
     }
     else
-    {
-        if (QToolButton *tButton = qobject_cast< QToolButton * >(this->sender()))
     {
         tButton->setChecked(true);
     }
 }
-}
 
 //---------------------------------------------------------------------------------------------------------------------
 void MainWindowsNoGUI::PrepareDetailsForLayout(const QHash<quint32, VDetail> *details)