Re: [gnome-db] gdatype_get_[min|max]_value () proposal

[Rodrigo Moya <rodrigo gnome-db org>]

On Wed, 2005-08-24 at 10:23 -0300, Juan Manuel Mouriz wrote:
> 2005/8/23, Rodrigo Moya <rodrigo gnome-db org>:
> > On Tue, 2005-08-23 at 16:01 -0300, Juan Manuel Mouriz wrote:
> > > I believe that put gdatype_get_[min|max]_value () functions would be a
> > > good idea in order to set spin button alignments for numeric types. If
> > > the type isn't numeric is possible return -1.
> > >
> > > I can write a patch for this?.
> > >
> > this needs access to the providers internals, so it might make sense as
> > part of the provider's methods.
> 
> Is really necesary?. I talk about the limits that the GLib  system
> imposes over the GDA types. Here a example:
> 
> gdouble
> gda_value_type_get_min_value (GdaValueType value_type)
> {
> 	switch (value_type)
> 	{
> 		case GDA_VALUE_TYPE_TINYUINT:
> 		case GDA_VALUE_TYPE_SMALLUINT:
> 		case GDA_VALUE_TYPE_BIGUINT:
> 		case GDA_VALUE_TYPE_UINTEGER:
> 			return 0;
> 		case GDA_VALUE_TYPE_TINYINT:
> 			return -128;
> 		case GDA_VALUE_TYPE_SMALLINT:
> 			return G_MINSHORT;
> 		case GDA_VALUE_TYPE_INTEGER:
> 			return G_MININT;
> 		case GDA_VALUE_TYPE_BIGINT:
> 			return G_MININT64;
> 
>          ...
> 
> 		case GDA_VALUE_TYPE_GEOMETRIC_POINT:
> 		case GDA_VALUE_TYPE_MONEY:
> 		case GDA_VALUE_TYPE_LIST:
> 		case GDA_VALUE_TYPE_UNKNOWN:
> 			return -1;
> 		default:
> 			g_assert_not_reached ();
> 	}
> 
well, those limits won't be the same for all providers/fields, right?
-- 
Rodrigo Moya <rodrigo gnome-db org>