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

[Jeffrey M. <Jef...@Br...>]

Let me give it a try this morning.  I'll let you know once it
is in cvs.

-Jeff

> On Tue, 2002-09-03 at 19:11, Jeffrey Morgan wrote:
> > Let me know if you want help with this.
> I do.
> 
> I've been trying for quite a while now but have made little 
> progress. I
> changed the TreeIter append method to 
> JNIEXPORT jint JNICALL
> Java_org_gnu_gtk_ListStore_gtk_1list_1store_1append (JNIEnv 
> *env, jclass
> cls, jint listStore) 
>   {
>         GtkListStore *listStore_g = (GtkListStore *)listStore;
> 		GtkTreeIter *iter_g = (GtkTreeIter *) 
> g_malloc(sizeof(GtkTreeIter));
>         {
>             gtk_list_store_append (listStore_g, iter_g);
>         }
> 		return (jint)iter_g;
>     }
> 
> This removed the iter errors. 
> 
> But then there are a number of error relating the the glib.Value and
> glib.Type classes. A number of them were resolved by bypassing those
> classes and creating new set methods in ListStore (I had planned to do
> something similar in the java code anyway):
> JNIEXPORT void JNICALL
> Java_org_gnu_gtk_ListStore_gtk_1list_1store_1set_1value_1strin
> g (JNIEnv
> *env, 
>         jclass cls, jint listStore, jint iter, jint column, char*
> strvalue) 
>     {
>         GtkListStore *listStore_g = (GtkListStore *)listStore;
>         GtkTreeIter *iter_g = (GtkTreeIter *)iter;
>         gint32 column_g = (gint32) column;	
> 		
> 		GValue *test;
>         GValue *value_g = g_value_init(test, G_TYPE_STRING);
>         {
>             gtk_list_store_set_value (listStore_g, iter_g, column_g,
> test);
> 		}
> 	}
> 
> This removed more of the warnings, but then I started to get strange
> errors from the ListStore constructor (which still uses glib.Type). 
> 
> I think the main error is probably something to do with 
> constructing and
> returning glib.Type objects.
> 
> Also, there could be problems with gtk_value_init in some 
> places - this
> takes and empty gvalue as an argument and should initialise it, but
> there is also a gvalue returned - I'm not sure what this is.
> 
> I've not committed any of the above changes. 
> The src/examples/gtk/tree/TreeExample.java is still the current target
> for testing. 
> -- 
> 
> +----------------------------------------------+
> | Mark Howard               cam.ac.uk   mh344@ |
> | http://www.tildemh.com    tildemh.com    mh@ |
> +----------------------------------------------+
>