[glom] ImageGlom: Remove unused member variable.

[Murray Cumming <murrayc src gnome org>]

commit 19f11ea7a1badd7eae3331e173733239387fe82e
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Jul 15 09:38:18 2011 +0200

    ImageGlom: Remove unused member variable.
    
    * glom/utility_widgets/imageglom.[h|cc]: Also add a comment that
    gnome_desktop_thumbnail_factory_new() didn't work either when I tried it.

 ChangeLog                         |    7 +++++++
 glom/utility_widgets/imageglom.cc |    3 ++-
 glom/utility_widgets/imageglom.h  |    7 +++----
 3 files changed, 12 insertions(+), 5 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 67e79d2..b8cff98 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2011-07-15  Murray Cumming  <murrayc murrayc com>
+
+	ImageGlom: Remove unused member variable.
+
+	* glom/utility_widgets/imageglom.[h|cc]: Also add a comment that 
+	gnome_desktop_thumbnail_factory_new() didn't work either when I tried it.
+
 1.19.8:
 
 2011-07-14  Murray Cumming  <murrayc murrayc com>
diff --git a/glom/utility_widgets/imageglom.cc b/glom/utility_widgets/imageglom.cc
index 7329c93..a16807b 100644
--- a/glom/utility_widgets/imageglom.cc
+++ b/glom/utility_widgets/imageglom.cc
@@ -314,7 +314,6 @@ void ImageGlom::show_image_data()
     
   //Clear all possible display widgets:
   m_pixbuf_original.reset();
-  m_pixbuf_thumbnail.reset();
   m_image.set(Glib::RefPtr<Gdk::Pixbuf>()); //TODO: Add an unset() to gtkmm.
   
   if(m_ev_document_model)
@@ -410,6 +409,8 @@ void ImageGlom::show_image_data()
           else
           {
             std::cerr << G_STRFUNC << ": Could not get attribute G_FILE_ATTRIBUTE_THUMBNAIL_PATH. failed=" << failed << std::endl;
+            //Note that gnome_desktop_thumbnail_factory_new() fails too, and 
+            //also requires a filepath rather than data in memory.
             
             //Use the standard icon instead:
             icon = file_info->get_icon();
diff --git a/glom/utility_widgets/imageglom.h b/glom/utility_widgets/imageglom.h
index fab9e28..4b70d01 100644
--- a/glom/utility_widgets/imageglom.h
+++ b/glom/utility_widgets/imageglom.h
@@ -102,13 +102,12 @@ private:
   EvView* m_ev_view;
   EvDocumentModel* m_ev_document_model;
   
-  //For anything supported by GdkPixbuf:
+  //For anything supported by GdkPixbuf,
+  //or for representative thumbnails and icons:
   Gtk::Image m_image;
   Glib::RefPtr<Gdk::Pixbuf> m_pixbuf_original; //Only stored temporarily, because it could be big.
   Glib::RefPtr<Gdk::Pixbuf> m_pixbuf_clipboard; //When copy is used, store it here until it is pasted.
-  
-  //For anything else:
-  Glib::RefPtr<Gdk::Pixbuf> m_pixbuf_thumbnail;
+
 
   Gtk::Menu* m_pMenuPopup_UserMode;
   Glib::RefPtr<Gtk::ActionGroup> m_refActionGroup_UserModePopup;