[longomatch] Fail gracefully when the file format is not supported

[Andoni Morales Alastruey <amorales src gnome org>]

commit 29a7bd226caf54abdcbfad93398c8a2a362188a9
Author: Andoni Morales Alastruey <ylatuya gmail com>
Date:   Mon Oct 13 20:47:26 2014 +0200

    Fail gracefully when the file format is not supported

 LongoMatch.GUI.Helpers/Misc.cs |   32 +++++++++++++++++++-------------
 1 files changed, 19 insertions(+), 13 deletions(-)
---
diff --git a/LongoMatch.GUI.Helpers/Misc.cs b/LongoMatch.GUI.Helpers/Misc.cs
index dfce65f..975008e 100644
--- a/LongoMatch.GUI.Helpers/Misc.cs
+++ b/LongoMatch.GUI.Helpers/Misc.cs
@@ -49,33 +49,39 @@ namespace LongoMatch.Gui.Helpers
                        return filter;
                }
 
-               public static Pixbuf OpenImage(Widget widget) {
+               public static Pixbuf OpenImage (Widget widget)
+               {
                        Gtk.Window toplevel = widget.Toplevel as Gtk.Window;
                        Pixbuf pimage = null;
                        StreamReader file;
                        FileChooserDialog fChooser;
                        string lastDir;
                        
-                        if (lastFilename != null) {
+                       if (lastFilename != null) {
                                lastDir = Path.GetDirectoryName (lastFilename);
-                        } else {
+                       } else {
                                lastDir = Config.HomeDir;
-                        }
+                       }
                        
-                       fChooser = new FileChooserDialog(Catalog.GetString("Choose an image"),
+                       fChooser = new FileChooserDialog (Catalog.GetString ("Choose an image"),
                                                         toplevel, FileChooserAction.Open,
-                                                        "gtk-cancel",ResponseType.Cancel,
-                                                        "gtk-open",ResponseType.Accept);
-                       fChooser.AddFilter(GetFileFilter());
+                                                        "gtk-cancel", ResponseType.Cancel,
+                                                        "gtk-open", ResponseType.Accept);
+                       fChooser.AddFilter (GetFileFilter ());
                        fChooser.SetCurrentFolder (lastDir);
-                       if(fChooser.Run() == (int)ResponseType.Accept)  {
+                       if (fChooser.Run () == (int)ResponseType.Accept) {
                                // For Win32 compatibility we need to open the image file
                                // using a StreamReader. Gdk.Pixbuf(string filePath) uses GLib to open the
                                // input file and doesn't support Win32 files path encoding
-                               lastFilename = fChooser.Filename;
-                               file = new StreamReader(fChooser.Filename);
-                               pimage= new Gdk.Pixbuf(file.BaseStream);
-                               file.Close();
+                               try {
+                                       lastFilename = fChooser.Filename;
+                                       file = new StreamReader (fChooser.Filename);
+                                       pimage = new Gdk.Pixbuf (file.BaseStream);
+                                       file.Close ();
+                               } catch (Exception ex) {
+                                       Log.Exception (ex);
+                                       Config.GUIToolkit.ErrorMessage (Catalog.GetString ("Image file format 
not supported"), widget);
+                               }
                        }
                        fChooser.Destroy();
                        return pimage;