On Wed, 2006-08-02 at 15:51 +0200, Tomasz Jankowski wrote:
Hi!
Hey Tomasz!
Generally it isn't a problem, I'm only nosy :P I'd like to know if there is
some other (more recommended) way to store, for example GObject in
GtkListStore/GtkTreeStore. So far I do it, by creating column with type
G_TYPE_INT and storing there pointer to object.
Use G_TYPE_OBJECT if you want it to work behind for example a language
binding.
Checkout tinymail for this.
https://svn.tinymail.org/svn/tinymail/trunk/libtinymail-test/tinymail-python-test.py
What you see here is a GObject (actually a GTypeInterface) of the type
TnyMsgHeaderIface and in this case an implementation called TnyMsgHeader
being put in the store model, which is of type TnyMsgHeaderListModel.
This list-model type implements GtkTreeModel and TnyListIface.
I assume you at some point want language bindings to work, else you
perhaps shouldn't develop GObject/C but rather pick a higher programming
language like C#, D or Python, Ruby, whatevery (but that's a personal
opinion, remove this last line .. hehe)
def on_headerstree_selected (treeselection, msgview) :
model, iter = treeselection.get_selected ()
if iter:
header = model.get_value (iter,
tinymail.uigtk.MSG_HEADER_LIST_MODEL_INSTANCE_COLUMN)
if header:
folder = header.get_folder ()
msg = folder.get_message (header)
msgview.set_msg (msg)
If you don't use G_TYPE_OBJECT, you would get a PyGTK error/warning here.
You can see the INSTANCE_COLUMN in tny-msg-header-list-model.c
https://svn.tinymail.org/svn/tinymail/trunk/libtinymailui-gtk/tny-msg-header-list-model.c
static GType
tny_msg_header_list_model_get_column_type (GtkTreeModel *self, gint column)
{
...
case TNY_MSG_HEADER_LIST_MODEL_INSTANCE_COLUMN:
retval = G_TYPE_OBJECT;
break;
...
}
It's a custom tree model. But you can also do this with a GtkListStore
implementation of GtkTreeModel.
In tinymail you can see such a GtkTreeModel at
https://svn.tinymail.org/svn/tinymail/trunk/libtinymailui-gtk/tny-attach-list-model.c
and
https://svn.tinymail.org/svn/tinymail/trunk/libtinymailui-gtk/tny-account-tree-model.c
For example look at this:
static void
tny_account_tree_model_instance_init (GTypeInstance *instance, gpointer g_class)
{
GtkTreeStore *store = (GtkTreeStore*) instance;
TnyAccountTreeModel *me = (TnyAccountTreeModel*) instance;
static GType types[] = { G_TYPE_STRING, G_TYPE_UINT, G_TYPE_INT,
G_TYPE_OBJECT };
me-iterator_lock = g_mutex_new ();
gtk_tree_store_set_column_types (store,
TNY_ACCOUNT_TREE_MODEL_N_COLUMNS, types);
return;
}
--
Philip Van Hoof, software developer at x-tend
home: me at pvanhoof dot be
gnome: pvanhoof at gnome dot org
work: vanhoof at x-tend dot be
http://www.pvanhoof.be - http://www.x-tend.be
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