// +build !windows,!darwin // 25 july 2014 package ui import ( "unsafe" ) // #include "gtk_unix.h" import "C" type tab struct { *controlSingleWidget container *C.GtkContainer notebook *C.GtkNotebook tabs []*container children []Control } func newTab() Tab { widget := C.gtk_notebook_new() t := &tab{ controlSingleWidget: newControlSingleWidget(widget), container: (*C.GtkContainer)(unsafe.Pointer(widget)), notebook: (*C.GtkNotebook)(unsafe.Pointer(widget)), } t.fresize = t.resize // there are no scrolling arrows by default; add them in case there are too many tabs C.gtk_notebook_set_scrollable(t.notebook, C.TRUE) return t } func (t *tab) Append(name string, control Control) { c := newContainer() t.tabs = append(t.tabs, c) // this calls gtk_container_add(), which, according to gregier in irc.gimp.net/#gtk+, acts just like gtk_notebook_append_page() c.setParent(&controlParent{t.container}) control.setParent(c.parent()) t.children = append(t.children, control) cname := togstr(name) defer freegstr(cname) C.gtk_notebook_set_tab_label_text(t.notebook, // unfortunately there does not seem to be a gtk_notebook_set_nth_tab_label_text() C.gtk_notebook_get_nth_page(t.notebook, C.gint(len(t.tabs)-1)), cname) } func (t *tab) resize(x int, y int, width int, height int, d *sizing) { // first, chain up to change the GtkFrame and its child container // TODO use a variable for this t.controlSingleWidget.resize(x, y, width, height, d) // now that the containers have the correct size, we can resize the children for i, _ := range t.tabs { a := t.tabs[i].allocation(false/*TODO*/) t.children[i].resize(int(a.x), int(a.y), int(a.width), int(a.height), d) } }