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range: Add default state saving

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Add default handlers for ::save/restore-state. All that is
needed to make state saving work now is setting save-id.
This commit is contained in:
Matthias Clasen
2021-06-02 21:47:50 -04:00
parent 8db1b89ace
commit 1962f535e8
1 changed files with 31 additions and 0 deletions
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31
gtk/gtkrange.c
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@@ -245,6 +245,12 @@ static gboolean gtk_range_scroll_controller_scroll (GtkEventControllerScrol
static void gtk_range_set_orientation (GtkRange *range,
GtkOrientation orientation);
static gboolean gtk_range_save_state (GtkWidget *range,
GVariantDict *dict,
gboolean *save);
static gboolean gtk_range_restore_state (GtkWidget *range,
GVariant *data);
G_DEFINE_TYPE_WITH_CODE (GtkRange, gtk_range, GTK_TYPE_WIDGET,
G_ADD_PRIVATE (GtkRange)
G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
@@ -271,6 +277,8 @@ gtk_range_class_init (GtkRangeClass *class)
widget_class->size_allocate = gtk_range_size_allocate;
widget_class->unmap = gtk_range_unmap;
widget_class->direction_changed = gtk_range_direction_changed;
widget_class->save_state = gtk_range_save_state;
widget_class->restore_state = gtk_range_restore_state;
class->move_slider = gtk_range_move_slider;
class->change_value = gtk_range_real_change_value;
@@ -2859,6 +2867,29 @@ _gtk_range_get_stop_positions (GtkRange *range,
return priv->n_marks;
}
static gboolean
gtk_range_save_state (GtkWidget *range,
GVariantDict *dict,
gboolean *save_children)
{
g_variant_dict_insert (dict, "value", "d", gtk_range_get_value (GTK_RANGE (range)));
*save_children = FALSE;
return TRUE;
}
static gboolean
gtk_range_restore_state (GtkWidget *range,
GVariant *data)
{
double value;
if (g_variant_lookup (data, "value", "d", &value))
gtk_range_set_value (GTK_RANGE (range), value);
return TRUE;
}
/**
* gtk_range_set_round_digits: (attributes org.gtk.Method.set_property=round-digits)
* @range: a `GtkRange`