Use width attribute for default width of number widgets

issue10609
review346691002

tryton/gui/window/view_form/view/form_gtk/float.py

@@ -17,7 +17,7 @@ class Float(Integer):
         if digits:
             return sum(digits)
         else:
-            return 18
+            return self.attrs.get('width', 18)
 
     def display(self):
         digits = self.digits

tryton/gui/window/view_form/view/form_gtk/integer.py

@@ -53,7 +53,7 @@ class Integer(Widget):
 
     @property
     def width(self):
-        return 8
+        return self.attrs.get('width', 8)
 
     def display(self):
         def set_symbol(entry, text):