Re: Drag Drop on GTK + Maemo 5 (was: Re: [pymaemo] DnD on N900)
On Wed, 2010-01-13 at 00:03 +0100, ext Jeffrey Barish wrote: Claudio Saavedra wrote: El mié, 06-01-2010 a las 19:44 -0400, Anderson Lizardo escribió: There is no drag 'n drop in Maemo GTK+. This has been deliberately disabled. Claudio Is there a way to enable drag drop, ideally on a per-application basis? Unfortunately not yet. There is a (internal) bug for enabling that. Maybe maemo.org bug would help to get it fixed. ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Drag Drop on GTK + Maemo 5 (was: Re: [pymaemo] DnD on N900)
Claudio Saavedra wrote: El mié, 06-01-2010 a las 19:44 -0400, Anderson Lizardo escribió: There is no drag 'n drop in Maemo GTK+. This has been deliberately disabled. Claudio Is there a way to enable drag drop, ideally on a per-application basis? -- Jeffrey Barish ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Drag Drop on GTK + Maemo 5 (was: Re: [pymaemo] DnD on N900)
Claudio Saavedra wrote: El jue, 07-01-2010 a las 10:08 -0400, Anderson Lizardo escribió: On Thu, Jan 7, 2010 at 5:37 AM, Claudio Saavedra csaave...@igalia.com wrote: There is no drag 'n drop in Maemo GTK+. This has been deliberately disabled. I believe that pretty much answers Jeff's issue... Was this done for Maemo 5 ? Because according to Jeff it used to work on the N810 (Diablo). I haven't tested it myself on N810 , though. Yes, only since Maemo 5. Out of curiousity, do you have any idea why it was disabled in Maemo 5? Is there DnD in Maemo Qt? -- Jeffrey Barish ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Drag Drop on GTK + Maemo 5 (was: Re: [pymaemo] DnD on N900)
El mié, 06-01-2010 a las 19:44 -0400, Anderson Lizardo escribió: [I'm CC'ing maemo-developers as it is clearly not a Python specific issue; see below for details] On Wed, Jan 6, 2010 at 2:11 PM, Jeffrey Barish jeff_bar...@earthlink.net wrote: Well, it took a little more than a few days, but here is a test program. It works on Ubuntu and N810, but not N900. Well, I tested your example on Maemo and Ubuntu, and indeed the drag drop only worked on Ubuntu. Additionally, this error is shown on console: /tmp/dndtest.py:77: Warning: g_object_set_data_full: assertion `G_IS_OBJECT (object)' failed gtk.main() So I went further and translated your example to C (please note I'm no GTK expert, I'm only trying to help debugging the problem). And the same behavior is presented: the drag does not work and this message is shown on console: dndtest[9349]: GLIB CRITICAL ** GLib-GObject - g_object_set_data_full: assertion `G_IS_OBJECT (object)' failed That means the problem is not related to Python or PyGTK at all, but some GTK limitation/bug on Maemo 5. There is no drag 'n drop in Maemo GTK+. This has been deliberately disabled. A stacktrace on the critical warning would be useful to find out the cause. Claudio ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Drag Drop on GTK + Maemo 5 (was: Re: [pymaemo] DnD on N900)
On Thu, Jan 7, 2010 at 5:37 AM, Claudio Saavedra csaave...@igalia.com wrote: There is no drag 'n drop in Maemo GTK+. This has been deliberately disabled. I believe that pretty much answers Jeff's issue... Was this done for Maemo 5 ? Because according to Jeff it used to work on the N810 (Diablo). I haven't tested it myself on N810 , though. A stacktrace on the critical warning would be useful to find out the cause. How to get that stack trace (some glib/gtk function?) ? it does not crash the application , so I think gdb cannot be used in this case. Thanks, -- Anderson Lizardo OpenBossa Labs - INdT Manaus - Brazil ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Drag Drop on GTK + Maemo 5 (was: Re: [pymaemo] DnD on N900)
El jue, 07-01-2010 a las 10:08 -0400, Anderson Lizardo escribió: On Thu, Jan 7, 2010 at 5:37 AM, Claudio Saavedra csaave...@igalia.com wrote: There is no drag 'n drop in Maemo GTK+. This has been deliberately disabled. I believe that pretty much answers Jeff's issue... Was this done for Maemo 5 ? Because according to Jeff it used to work on the N810 (Diablo). I haven't tested it myself on N810 , though. Yes, only since Maemo 5. A stacktrace on the critical warning would be useful to find out the cause. How to get that stack trace (some glib/gtk function?) ? it does not crash the application , so I think gdb cannot be used in this case. Set G_DEBUG=fatal-criticals. That will cause glib to abort on a critical warning. Claudio ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Drag Drop on GTK + Maemo 5 (was: Re: [pymaemo] DnD on N900)
[I'm CC'ing maemo-developers as it is clearly not a Python specific
issue; see below for details]
On Wed, Jan 6, 2010 at 2:11 PM, Jeffrey Barish
jeff_bar...@earthlink.net wrote:
Well, it took a little more than a few days, but here is a test program. It
works on Ubuntu and N810, but not N900.
Well, I tested your example on Maemo and Ubuntu, and indeed the drag
drop only worked on Ubuntu. Additionally, this error is shown on
console:
/tmp/dndtest.py:77: Warning: g_object_set_data_full: assertion
`G_IS_OBJECT (object)' failed
gtk.main()
So I went further and translated your example to C (please note I'm no
GTK expert, I'm only trying to help debugging the problem). And the
same behavior is presented: the drag does not work and this message is
shown on console:
dndtest[9349]: GLIB CRITICAL ** GLib-GObject - g_object_set_data_full:
assertion `G_IS_OBJECT (object)' failed
That means the problem is not related to Python or PyGTK at all, but
some GTK limitation/bug on Maemo 5.
The translated C example is attached.
Any ideas anyone? Regards,
--
Anderson Lizardo
OpenBossa Labs - INdT
Manaus - Brazil
#include gtk/gtk.h
gboolean on_delete_event(GtkWidget *widget, GdkEvent *event, gpointer data)
{
gtk_main_quit();
return FALSE;
}
void on_drag_data_received(GtkWidget *treeview,
GdkDragContext *drag_context,
gint x,
gint y,
GtkSelectionData *data,
guint info,
guint time,
gpointer user_data)
{
gboolean ret;
GtkWidget *source_widget = gtk_drag_get_source_widget(drag_context);
GtkTreeModel *model;
gchar *source_row[2];
if (source_widget == treeview) {
GtkTreeSelection *selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
GtkTreeIter iter;
ret = gtk_tree_selection_get_selected(selection, model, iter);
g_assert(ret == TRUE);
gtk_tree_model_get(model, iter, 0, source_row[0], 1, source_row[1], -1);
} else {
model = gtk_tree_view_get_model(GTK_TREE_VIEW(treeview));
source_row[0] = 9;
source_row[1] = newrow;
}
GtkTreePath *path;
GtkTreeViewDropPosition position;
ret = gtk_tree_view_get_dest_row_at_pos(GTK_TREE_VIEW(treeview), x, y, path, position);
if (ret) {
GtkTreeIter iter;
ret = gtk_tree_model_get_iter(model, iter, path);
if (position == GTK_TREE_VIEW_DROP_BEFORE || position == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE) {
GtkTreeIter new_iter;
gtk_list_store_insert_before(GTK_LIST_STORE(model), new_iter, iter);
gtk_list_store_set(GTK_LIST_STORE(model), new_iter, 0, source_row[0], 1, source_row[1], -1);
} else {
GtkTreeIter new_iter;
gtk_list_store_insert_after(GTK_LIST_STORE(model), new_iter, iter);
gtk_list_store_set(GTK_LIST_STORE(model), new_iter, 0, source_row[0], 1, source_row[1], -1);
}
} else {
GtkTreeIter iter;
gtk_list_store_append(GTK_LIST_STORE(model), iter);
gtk_list_store_set(GTK_LIST_STORE(model), iter, 0, source_row[0], 1, source_row[1], -1);
}
if (drag_context-action == GDK_ACTION_MOVE) {
gtk_drag_finish(drag_context, TRUE, TRUE, (guint32)data);
}
}
int main(int argc, char **argv)
{
gtk_init(argc, argv);
GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(window), DND Test);
gtk_widget_set_size_request(window, 200, 300);
g_signal_connect(G_OBJECT(window), delete_event, G_CALLBACK(on_delete_event), NULL);
GtkWidget *button = gtk_button_new_with_label(Text on the button);
GtkListStore *liststore = gtk_list_store_new(2, G_TYPE_STRING, G_TYPE_STRING);
GtkTreeIter iter;
gtk_list_store_append(liststore, iter);
gtk_list_store_set(liststore, iter, 0, 0, 1, zero, -1);
gtk_list_store_append(liststore, iter);
gtk_list_store_set(liststore, iter, 0, 1, 1, one, -1);
gtk_list_store_append(liststore, iter);
gtk_list_store_set(liststore, iter, 0, 2, 1, two, -1);
gtk_list_store_append(liststore, iter);
gtk_list_store_set(liststore, iter, 0, 3, 1, three, -1);
gtk_list_store_append(liststore, iter);
gtk_list_store_set(liststore, iter, 0, 4, 1, four, -1);
gtk_list_store_append(liststore, iter);
gtk_list_store_set(liststore, iter, 0, 5, 1, five, -1);
gtk_list_store_append(liststore, iter);
gtk_list_store_set(liststore, iter, 0, 6, 1, six, -1);
GtkWidget *treeview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(liststore));
g_signal_connect(G_OBJECT(treeview), drag-data-received, G_CALLBACK(on_drag_data_received), NULL);
GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
GtkTreeViewColumn *column = gtk_tree_view_column_new_with_attributes(Int,
