[gtkmm/gtkmm-3-20: 1/3] TreeView: _auto_store_on_cellrenderer_text_edited_numerical():

[Murray Cumming <murrayc src gnome org>]

commit 4c99f24014b16a18d15aab0867543ccb9eaa0da0
Author: Murray Cumming <murrayc murrayc com>
Date:   Thu Apr 14 15:03:05 2016 +0200

    TreeView: _auto_store_on_cellrenderer_text_edited_numerical():
    
    Catch the exception from std::stod().
    This is a regression since version 3.17.80:
    https://git.gnome.org/browse/gtkmm/commit/gtk/src/treeview.hg?id=fcc0f358d17264f8956567a33471a6b52c2fc0d1
    Bug #765044 (Justinas)

 gtk/src/treeview.hg |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)
---
diff --git a/gtk/src/treeview.hg b/gtk/src/treeview.hg
index 178af31..75dd0e6 100644
--- a/gtk/src/treeview.hg
+++ b/gtk/src/treeview.hg
@@ -1185,7 +1185,15 @@ void _auto_store_on_cellrenderer_text_edited_numerical(const Glib::ustring& path
       //new_value << astream; //Get it out of the stream as the numerical type.
 
       //Convert the text to a number, using the same logic used by GtkCellRendererText when it stores 
numbers.
-      auto new_value = static_cast<ColumnType>( std::stod(new_text) );
+      ColumnType new_value = ColumnType();
+      try
+      {
+        new_value =  static_cast<ColumnType>( std::stod(new_text) );
+      } catch(const std::invalid_argument&)
+      {
+         //Intentionally ignored.
+         //Applications can use their own logic if they want to handle invalid input differently.
+      }
 
       //Store the user's new text in the model:
       Gtk::TreeRow row = *iter;