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gtk-demo: Stop using ::hierarchy-changed

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We can use root and unroot instead.
This commit is contained in:
Matthias Clasen 2019-02-23 01:12:43 -05:00
parent 3ccbcf9f55
commit 8d93321461
1 changed files with 23 additions and 15 deletions
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38
demos/gtk-demo/paint.c
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@ -171,8 +171,24 @@ on_pad_knob_change (GSimpleAction *action,
}
static void
drawing_area_hierarchy_changed (GtkWidget *widget,
GtkWidget *previous_toplevel)
drawing_area_unroot (GtkWidget *widget)
{
DrawingArea *area = (DrawingArea *) widget;
GtkWidget *toplevel;
toplevel = gtk_widget_get_toplevel (widget);
if (area->pad_controller)
{
gtk_widget_remove_controller (toplevel, GTK_EVENT_CONTROLLER (area->pad_controller));
area->pad_controller = NULL;
}
GTK_WIDGET_CLASS (drawing_area_parent_class)->unroot (widget);
}
static void
drawing_area_root (GtkWidget *widget)
{
DrawingArea *area = (DrawingArea *) widget;
GSimpleActionGroup *action_group;
@ -180,20 +196,12 @@ drawing_area_hierarchy_changed (GtkWidget *widget,
GtkWidget *toplevel;
gint i;
if (previous_toplevel && area->pad_controller)
{
gtk_widget_remove_controller (previous_toplevel,
GTK_EVENT_CONTROLLER (area->pad_controller));
area->pad_controller = NULL;
}
GTK_WIDGET_CLASS (drawing_area_parent_class)->root (widget);
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (area));
if (!GTK_IS_WINDOW (toplevel))
return;
action_group = g_simple_action_group_new ();
area->pad_controller = gtk_pad_controller_new (G_ACTION_GROUP (action_group),
NULL);
area->pad_controller = gtk_pad_controller_new (G_ACTION_GROUP (action_group), NULL);
for (i = 0; i < G_N_ELEMENTS (pad_actions); i++)
{
@ -220,8 +228,7 @@ drawing_area_hierarchy_changed (GtkWidget *widget,
gtk_pad_controller_set_action_entries (area->pad_controller, pad_actions,
G_N_ELEMENTS (pad_actions));
gtk_widget_add_controller (toplevel,
GTK_EVENT_CONTROLLER (area->pad_controller));
gtk_widget_add_controller (toplevel, GTK_EVENT_CONTROLLER (area->pad_controller));
}
static void
@ -233,7 +240,8 @@ drawing_area_class_init (DrawingAreaClass *klass)
widget_class->snapshot = drawing_area_snapshot;
widget_class->map = drawing_area_map;
widget_class->unmap = drawing_area_unmap;
widget_class->hierarchy_changed = drawing_area_hierarchy_changed;
widget_class->root = drawing_area_root;
widget_class->unroot = drawing_area_unroot;
area_signals[COLOR_SET] =
g_signal_new ("color-set",