Re: [java-gnome-hackers] Tree/List widgets

[Jeffrey M. <ku...@zo...>]

I will look into this over the weekend.

On Sat, 2002-08-24 at 06:00, Mark Howard wrote:
> On Fri, 2002-08-23 at 17:46, Mark Howard wrote:
> > public Value(Type type) {
> > 		int [] vptr = new int[1];
> > 		Value.g_value_init(vptr, type.getHandle());
> > 		handle = vptr[0];
> > }
> 
> Has anyone successfully used the glib.Value object? 
> 
> The gtk reference says:
> GValue*     g_value_init                    (GValue *value,
>                                              GType g_type);
> Initializes value with the default value of type.
> value : A zero-filled (uninitialized) GValue structure.
> g_type : Type the GValue should hold values of.
> Returns :  <no comment>
> 
> 
> The JNI code, however, uses the return statement:
> /*
>  * Class:     org.gnu.glib.Value
>  * Method:    g_value_init
>  * Signature: ([Lint ;I)I
>  */
> JNIEXPORT jint JNICALL Java_org_gnu_glib_Value_g_1value_1init (JNIEnv
> *env, jclass cls, 
>     jintArray value, jint type) 
> {
>     gint *value_g_g = (gint *) (*env)->GetIntArrayElements (env, value,
> NULL);
>     GValue *value_g = (GValue *)value_g_g;
>     GType type_g = (GType)&type;
>     {
>         return (jint)g_value_init (value_g, type_g);
>     }
> }
> 
> 
> Although this return value is ignored in the java code:
> /**
>  * Construct a new Value from a given org.gnu.glib.Value.
>  */
> public Value(Type type) {
> 	int [] vptr = new int[1];
> 	Value.g_value_init(vptr, type.getHandle());
> 	handle = vptr[0];
> }
> 
> Could someone who knows more about this please check it and either
> confirm that the Value code is correct or try to fix it.
> 
> Thanks
> -- 
> 
> +----------------------------------------------+
> | Mark Howard               cam.ac.uk   mh344@ |
> | http://www.tildemh.com    tildemh.com    mh@ |
> +----------------------------------------------+