From c5e16ed805ffa88e03611e5fe1125c0d3ca72191 Mon Sep 17 00:00:00 2001
From: itsmattkc <itsmattkc@gmail.com>
Date: Thu, 19 Dec 2019 15:53:56 +1100
Subject: [PATCH] only show export dialog if the sequence is not empty

---
 app/core.cpp | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/app/core.cpp b/app/core.cpp
index e55d4b87b..82ef9a5a6 100644
--- a/app/core.cpp
+++ b/app/core.cpp
@@ -232,8 +232,15 @@ void Core::DialogExportShow()
   ViewerPanel* latest_viewer = olive::panel_manager->MostRecentlyFocused<ViewerPanel>();
 
   if (latest_viewer && latest_viewer->GetConnectedViewer()) {
-    ExportDialog ed(latest_viewer->GetConnectedViewer(), main_window_);
-    ed.exec();
+    if (latest_viewer->GetConnectedViewer()->Length() == 0) {
+      QMessageBox::critical(main_window_,
+                            tr("Error"),
+                            tr("This Sequence is empty. There is nothing to export."),
+                            QMessageBox::Ok);
+    } else {
+      ExportDialog ed(latest_viewer->GetConnectedViewer(), main_window_);
+      ed.exec();
+    }
   }
 }