Re: [Vala] GLX (OpenGL Extension to the X Window System) binding!!

[Jürg Billeter <j bitron ch>]

On Fri, 2008-08-15 at 15:17 +0100, Sam Liddicott wrote:
> * Matías De la Puente wrote, On 15/08/08 14:12:
> > Hi Xavier
> >
> > I have two ways to put the constants and the functions in the binding:
> >
> > The first one is put the constants and the functions as they appear in
> > the header file, GLX_SOMETHING for constants and glXSomenthing for
> > functions. This can be done if I put this attibute in the namespace:
> >
> > [CCode (lower_case_cprefix ="", cheader_filename="GL/glx.h")]   // No
> > prefix
> >
> > The second one is the way you say, but for doing that i have to group
> > the constants because I can't put in the namespace attribute
> > lower_case_cprefix="GLX_" because the functions will appear like this:
> > GLX_glXSomething or GLX_Somenthing and if I put
> > lower_case_cprefix="glX" the constants will appear like this:
> > glXSOMETHING or glXGLX_SOMETHING.
> > The solution for this is to group de constants, but there's a lot of
> > constants and the documentation that I found don't tell me how can I
> > groups this contants (including the constants in GL and GLU).
> I have the same problem:
>
> [CCode (cheader_file = "ntstatus.h", cprefix="NT_STATUS_")]
> namespace NT_STATUS {
>   [CCode (cname="NT_STATUS_OK")]
>     public static NTSTATUS OK;
>   [CCode (cname="NT_STATUS_NO_MEMORY")]
>     public static NTSTATUS NO_MEMORY;
>   [CCode (cname="NT_STATUS_INVALID_PARAMETER")]
>     public static NTSTATUS INVALID_PARAMETER;
>   [CCode (cname="NT_STATUS_UNSUCCESSFUL")]
>     public static NTSTATUS UNSUCCESSFUL;
>
>     [SimpleType][Compact]
>     [CCode (cname="NTSTATUS", cprefix="NTSTATUS_",
> default_value="NT_STATUS_OK")]
>     public struct NTSTATUS {
>         [CCode (cname="NT_STATUS_IS_OK")]
>         protected bool IS_OK();
>     }
> }
>
>
> I have to specify a cname for each NTSTATUS value, or it gets a dumb
> prefix and comes out as:
>   nt__status_INVALID_PARAMETER
> instead of
>   NT_STATUS_INVALID_PARAMETER

These values should be bound as constants, not as static variables,
e.g., public const NTSTATUS OK; Vala should use upper case letters by
default, then.

Juerg