store_file (MainWindow)

          # File lib/json/editor.rb, line 1226
    1226:       def store_file(path)
    1227:         if path
    1228:           data = Editor.model2data(@treeview.model.iter_first)
    1229:           File.open(path + '.tmp', 'wb') do |output|
    1230:             data or break
    1231:             if @options_menu.pretty_item.active?
    1232:               output.puts JSON.pretty_generate(data, :max_nesting => false)
    1233:             else
    1234:               output.write JSON.generate(data, :max_nesting => false)
    1235:             end
    1236:           end
    1237:           File.rename path + '.tmp', path
    1238:           @filename = path
    1239:           toplevel.display_status("Saved data to '#@filename'.")
    1240:           unchange
    1241:         end
    1242:       rescue SystemCallError => e
    1243:         Editor.error_dialog(self, "Failed to store JSON file: #{e}!")
    1244:       end