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xxx: Add a hack to make paintables transform to/from objects

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See also: https://gitlab.gnome.org/GNOME/glib/merge_requests/1251
This commit is contained in:
Benjamin Otte 2019-11-26 06:09:20 +01:00 committed by Matthias Clasen
parent 650688c635
commit c337887e29
1 changed files with 13 additions and 0 deletions
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13
gdk/gdkpaintable.c
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@ -136,6 +136,16 @@ static double gdk_paintable_default_get_intrinsic_aspect_ratio (GdkPaintable *pa
return (double) width / height;
};
static void
g_value_object_transform_value (const GValue *src_value,
GValue *dest_value)
{
if (src_value->data[0].v_pointer && g_type_is_a (G_OBJECT_TYPE (src_value->data[0].v_pointer), G_VALUE_TYPE (dest_value)))
dest_value->data[0].v_pointer = g_object_ref (src_value->data[0].v_pointer);
else
dest_value->data[0].v_pointer = NULL;
}
static void
gdk_paintable_default_init (GdkPaintableInterface *iface)
{
@ -146,6 +156,9 @@ gdk_paintable_default_init (GdkPaintableInterface *iface)
iface->get_intrinsic_height = gdk_paintable_default_get_intrinsic_height;
iface->get_intrinsic_aspect_ratio = gdk_paintable_default_get_intrinsic_aspect_ratio;
g_value_register_transform_func (G_TYPE_OBJECT, GDK_TYPE_PAINTABLE, g_value_object_transform_value);
g_value_register_transform_func (GDK_TYPE_PAINTABLE, G_TYPE_OBJECT, g_value_object_transform_value);
/**
* GdkPaintable::invalidate-contents
* @paintable: a #GdkPaintable