From 6fd94bf97d9f6f6263262d7dd23f8f2c2e33d796 Mon Sep 17 00:00:00 2001
From: Aleks Kissinger <aleks0@gmail.com>
Date: Sun, 6 Jan 2019 15:15:50 +0100
Subject: add a blank node when previewing empty graph

---
 src/data/tikzdocument.cpp | 5 +++++
 src/data/tikzdocument.h   | 2 ++
 2 files changed, 7 insertions(+)

(limited to 'src/data')

diff --git a/src/data/tikzdocument.cpp b/src/data/tikzdocument.cpp
index b89da10..1099779 100644
--- a/src/data/tikzdocument.cpp
+++ b/src/data/tikzdocument.cpp
@@ -148,6 +148,11 @@ QString TikzDocument::fileName() const
     return _fileName;
 }
 
+bool TikzDocument::isEmpty()
+{
+    return _graph->nodes().isEmpty();
+}
+
 void TikzDocument::addToRecentFiles()
 {
     QSettings settings("tikzit", "tikzit");
diff --git a/src/data/tikzdocument.h b/src/data/tikzdocument.h
index 3b5990a..ad5499f 100644
--- a/src/data/tikzdocument.h
+++ b/src/data/tikzdocument.h
@@ -54,6 +54,8 @@ public:
 
     QString fileName() const;
 
+    bool isEmpty();
+
 private:
     Graph *_graph;
     QString _tikz;
-- 
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