From d280a69a920aac8c058352a4b92f3edd3b73a299 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 31 Aug 2015 15:13:47 +0530
Subject: [PATCH] Make the new spinner exception safe

---
 src/calibre/gui2/progress_indicator/__init__.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/calibre/gui2/progress_indicator/__init__.py b/src/calibre/gui2/progress_indicator/__init__.py
index 9f0c09777d..1f36c7055f 100644
--- a/src/calibre/gui2/progress_indicator/__init__.py
+++ b/src/calibre/gui2/progress_indicator/__init__.py
@@ -53,6 +53,7 @@ class ProgressSpinner(QWidget):
         pal = self.palette()
         self.dark = pal.color(pal.Text)
         self.light = pal.color(pal.Window)
+        self.errored_out = False
 
     @property
     def animation_interval(self):
@@ -106,7 +107,13 @@ class ProgressSpinner(QWidget):
         self.update()
 
     def paintEvent(self, ev):
-        draw_snake_spinner(QPainter(self), self.rect(), self.loading_angle, self.light, self.dark)
+        if not self.errored_out:
+            try:
+                draw_snake_spinner(QPainter(self), self.rect(), self.loading_angle, self.light, self.dark)
+            except Exception:
+                import traceback
+                traceback.print_exc()
+                self.errored_out = True
 
 ProgressIndicator = ProgressSpinner
 if __name__ == '__main__':