From a2838a0c3898f999e71f76e6e8d5691155438aea Mon Sep 17 00:00:00 2001
From: tassaron
Date: Sun, 25 Jun 2017 10:36:32 -0400
Subject: disable some hotkeys while encoding, more friendly error messages

---
 src/preview_thread.py | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

(limited to 'src/preview_thread.py')

diff --git a/src/preview_thread.py b/src/preview_thread.py
index ac5751d..769656b 100644
--- a/src/preview_thread.py
+++ b/src/preview_thread.py
@@ -50,16 +50,15 @@ class Worker(QtCore.QObject):
             components = nextPreviewInformation["components"]
             for component in reversed(components):
                 try:
-                    newFrame = component.previewRender(self)
                     frame = Image.alpha_composite(
-                        frame, newFrame)
-                except ValueError:
+                        frame, component.previewRender(self)
+                    )
+                except ValueError as e:
                     self.parent.showMessage(
                         msg="Bad frame returned by %s's previewRender method. "
                             "This is a fatal error." %
                             str(component),
-                        detail="bad frame: w%s, h%s" % (
-                            newFrame.width, newFrame.height)
+                        detail=str(e)
                     )
                     quit(1)
 
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