Fix bug noticed by Pavel. Apparently, some changes Abdel made to preview loading...

We have been here before. The png files are generated, but then by the time we preview the document, they are gone. This is because (a) when the PreviewLoader for a Buffer is deleted, it removes all its previews and (b) we export in a clone, so that Buffer gets deleted before the preview is actually shown. So we need to check whether we are a preview for a clone before we delete anything.

diff --git a/src/graphics/PreviewImage.cpp b/src/graphics/PreviewImage.cpp
index 8c3f31d44f9ea15b7846c1094f896417056888bf..661c8af8d19f947ac5216a4f2e2a2c252f8999bc 100644 (file)
--- a/src/graphics/PreviewImage.cpp
+++ b/src/graphics/PreviewImage.cpp
@@ -12,6 +12,7 @@
 
 #include "PreviewImage.h"
 
+#include "Buffer.h"
 #include "Dimension.h"
 #include "GraphicsImage.h"
 #include "GraphicsLoader.h"
@@ -112,7 +113,8 @@ PreviewImage::Impl::Impl(PreviewImage & p, PreviewLoader & l,
 
 PreviewImage::Impl::~Impl()
 {
-       iloader_.filename().removeFile();
+       if (!ploader_.buffer().isClone())
+               iloader_.filename().removeFile();
 }