diff --git a/redo/container_unix.c b/redo/container_unix.c
new file mode 100644
index 0000000..80b3c7a
--- /dev/null
+++ b/redo/container_unix.c
@@ -0,0 +1,111 @@
+// 13 august 2014
+#include <gtk/gtk.h>
+
+#define CUSTOM_CONTAINER_TYPE (customContainer_get_type())
+#define CUSTOM_CONTAINER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), CUSTOM_CONTAINER_TYPE, CustomContainer))
+#define IS_CUSTOM_CONTAINER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), CUSTOM_CONTAINER_TYPE))
+#define CUSTOM_CONTAINER_CLASS(class) (G_TYPE_CHECK_CLASS_CAST((class), CUSTOM_CONTAINER_TYPE, CustomContainerClass))
+#define IS_CUSTOM_CONTAINER_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE((class), CUSTOM_CONTAINER_TYPE))
+#define CUSTOM_CONTAINER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), CUSTOM_CONTAINER_TYPE, CustomContainerClass))
+
+typedef struct CustomContainer CustomContainer;
+typedef struct CustomContainerClass CustomContainerClass;
+
+struct CustomContainer {
+	GtkContainer parent_instance;
+	GtkWidget *child;
+};
+
+struct CustomContainerClass {
+	GtkContainerClass parent_class;
+};
+
+G_DEFINE_TYPE(CustomContainer, customContainer, GTK_TYPE_CONTAINER)
+
+static void customContainer_init(CustomContainer *c)
+{
+	gtk_widget_set_has_window(GTK_WIDGET(c), FALSE);
+}
+
+static void customContainer_dispose(GObject *obj)
+{
+	G_OBJECT_CLASS(customContainer_parent_class)->dispose(obj);
+}
+
+static void customContainer_finalize(GObject *obj)
+{
+	G_OBJECT_CLASS(customContainer_parent_class)->finalize(obj);
+}
+
+static void customContainer_add(GtkContainer *container, GtkWidget *widget)
+{
+	gtk_widget_set_parent(widget, GTK_WIDGET(container));
+	CUSTOM_CONTAINER(container)->child = widget;
+}
+
+static void customContainer_remove(GtkContainer *container, GtkWidget *widget)
+{
+	gtk_widget_unparent(widget);
+	CUSTOM_CONTAINER(container)->child = NULL;
+}
+
+static void customContainer_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
+{
+	gtk_widget_set_allocation(widget, allocation);
+	if (CUSTOM_CONTAINER(widget)->child != NULL)
+		gtk_widget_size_allocate(CUSTOM_CONTAINER(widget)->child, allocation);
+}
+
+static void customContainer_get_preferred_width(GtkWidget *widget, gint *min, gint *nat)
+{
+	if (CUSTOM_CONTAINER(widget)->child != NULL) {
+		gtk_widget_get_preferred_width(CUSTOM_CONTAINER(widget)->child, min, nat);
+		return;
+	}
+	if (min != NULL)
+		*min = 0;
+	if (nat != NULL)
+		*nat = 0;
+}
+
+static void customContainer_get_preferred_height(GtkWidget *widget, gint *min, gint *nat)
+{
+	if (CUSTOM_CONTAINER(widget)->child != NULL) {
+		gtk_widget_get_preferred_height(CUSTOM_CONTAINER(widget)->child, min, nat);
+		return;
+	}
+	if (min != NULL)
+		*min = 0;
+	if (nat != NULL)
+		*nat = 0;
+}
+
+static void customContainer_forall(GtkContainer *container, gboolean includeInternals, GtkCallback callback, gpointer data)
+{
+	if (CUSTOM_CONTAINER(container)->child != NULL)
+		(*callback)(CUSTOM_CONTAINER(container)->child, data);
+}
+
+static void customContainer_class_init(CustomContainerClass *class)
+{
+	G_OBJECT_CLASS(class)->dispose = customContainer_dispose;
+	G_OBJECT_CLASS(class)->finalize = customContainer_finalize;
+	GTK_WIDGET_CLASS(class)->size_allocate = customContainer_size_allocate;
+//	GTK_WIDGET_CLASS(class)->get_preferred_width = customContainer_get_preferred_width;
+//	GTK_WIDGET_CLASS(class)->get_preferred_height = customContainer_get_preferred_height;
+	GTK_CONTAINER_CLASS(class)->add = customContainer_add;
+	GTK_CONTAINER_CLASS(class)->remove = customContainer_remove;
+	GTK_CONTAINER_CLASS(class)->forall = customContainer_forall;
+}
+
+int main(void)
+{
+	gtk_init(NULL, NULL);
+	GtkWidget *mainwin = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+	GtkWidget *cc = g_object_new(CUSTOM_CONTAINER_TYPE, NULL);
+	gtk_container_add(GTK_CONTAINER(cc), gtk_button_new_with_label("Test"));
+	gtk_container_add(GTK_CONTAINER(mainwin), cc);
+	gtk_widget_show_all(mainwin);
+	gtk_main();
+	return 0;
+}