another UI attempt, I guess.

sorry.

src/libui_sdl/libui/unix/tab.c

@@ -0,0 +1,97 @@
+// 11 june 2015
+#include "uipriv_unix.h"
+
+struct uiTab {
+	uiUnixControl c;
+
+	GtkWidget *widget;
+	GtkContainer *container;
+	GtkNotebook *notebook;
+
+	GArray *pages;				// []*struct child
+};
+
+uiUnixControlAllDefaultsExceptDestroy(uiTab)
+
+static void uiTabDestroy(uiControl *c)
+{
+	uiTab *t = uiTab(c);
+	guint i;
+	struct child *page;
+
+	for (i = 0; i < t->pages->len; i++) {
+		page = g_array_index(t->pages, struct child *, i);
+		childDestroy(page);
+	}
+	g_array_free(t->pages, TRUE);
+	// and free ourselves
+	g_object_unref(t->widget);
+	uiFreeControl(uiControl(t));
+}
+
+void uiTabAppend(uiTab *t, const char *name, uiControl *child)
+{
+	uiTabInsertAt(t, name, t->pages->len, child);
+}
+
+void uiTabInsertAt(uiTab *t, const char *name, int n, uiControl *child)
+{
+	struct child *page;
+
+	// this will create a tab, because of gtk_container_add()
+	page = newChildWithBox(child, uiControl(t), t->container, 0);
+
+	gtk_notebook_set_tab_label_text(t->notebook, childBox(page), name);
+	gtk_notebook_reorder_child(t->notebook, childBox(page), n);
+
+	g_array_insert_val(t->pages, n, page);
+}
+
+void uiTabDelete(uiTab *t, int n)
+{
+	struct child *page;
+
+	page = g_array_index(t->pages, struct child *, n);
+	// this will remove the tab, because gtk_widget_destroy() calls gtk_container_remove()
+	childRemove(page);
+	g_array_remove_index(t->pages, n);
+}
+
+int uiTabNumPages(uiTab *t)
+{
+	return t->pages->len;
+}
+
+int uiTabMargined(uiTab *t, int n)
+{
+	struct child *page;
+
+	page = g_array_index(t->pages, struct child *, n);
+	return childFlag(page);
+}
+
+void uiTabSetMargined(uiTab *t, int n, int margined)
+{
+	struct child *page;
+
+	page = g_array_index(t->pages, struct child *, n);
+	childSetFlag(page, margined);
+	childSetMargined(page, childFlag(page));
+}
+
+uiTab *uiNewTab(void)
+{
+	uiTab *t;
+
+	uiUnixNewControl(uiTab, t);
+
+	t->widget = gtk_notebook_new();
+	t->container = GTK_CONTAINER(t->widget);
+	t->notebook = GTK_NOTEBOOK(t->widget);
+
+	gtk_notebook_set_scrollable(t->notebook, TRUE);
+
+	t->pages = g_array_new(FALSE, TRUE, sizeof (struct child *));
+
+	return t;
+}