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

[Mark H. <mh...@ti...>]

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=20
JNIEXPORT jint JNICALL
Java_org_gnu_gtk_ListStore_gtk_1list_1store_1append (JNIEnv *env, jclass
cls, jint listStore)=20
  {
        GtkListStore *listStore_g =3D (GtkListStore *)listStore;
		GtkTreeIter *iter_g =3D (GtkTreeIter *) g_malloc(sizeof(GtkTreeIter));
        {
            gtk_list_store_append (listStore_g, iter_g);
        }
		return (jint)iter_g;
    }

This removed the iter errors.=20

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_1string (JNIEnv
*env,=20
        jclass cls, jint listStore, jint iter, jint column, char*
strvalue)=20
    {
        GtkListStore *listStore_g =3D (GtkListStore *)listStore;
        GtkTreeIter *iter_g =3D (GtkTreeIter *)iter;
        gint32 column_g =3D (gint32) column;=09
	=09
		GValue *test;
        GValue *value_g =3D 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).=20

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.=20
The src/examples/gtk/tree/TreeExample.java is still the current target
for testing.=20
--=20

+----------------------------------------------+
| Mark Howard               cam.ac.uk   mh344@ |
| http://www.tildemh.com    tildemh.com    mh@ |
+----------------------------------------------+