Added window (and thus control) resizing. Other bugs have been fixed along the way.

callbacks_unix.go

@@ -16,7 +16,7 @@ while we're at it the callback for our idle function will be handled here too fo
 // #cgo pkg-config: gtk+-3.0
 // #include <gtk/gtk.h>
 // extern gboolean our_callback(gpointer);
-// extern gboolean our_delete_event_callback(GtkWidget *, GdkEvent *, gpointer);
+// extern gboolean our_window_callback(GtkWidget *, GdkEvent *, gpointer);
 // extern void our_clicked_callback(GtkButton *, gpointer);
 import "C"
 
@@ -26,8 +26,8 @@ func our_callback(what C.gpointer) C.gboolean {
 	return togbool(f())
 }
 
-//export our_delete_event_callback
-func our_delete_event_callback(widget *C.GtkWidget, event *C.GdkEvent, what C.gpointer) C.gboolean {
+//export our_window_callback
+func our_window_callback(widget *C.GtkWidget, event *C.GdkEvent, what C.gpointer) C.gboolean {
 	return our_callback(what)
 }
 
@@ -38,6 +38,7 @@ func our_clicked_callback(button *C.GtkButton, what C.gpointer) {
 
 var callbacks = map[string]C.GCallback{
 	"idle":			C.GCallback(C.our_callback),
-	"delete-event":		C.GCallback(C.our_delete_event_callback),
+	"delete-event":		C.GCallback(C.our_window_callback),
+	"configure-event":	C.GCallback(C.our_window_callback),
 	"clicked":			C.GCallback(C.our_clicked_callback),
 }

gtkcalls_unix.go

@@ -80,6 +80,13 @@ func gtk_window_resize(window *gtkWidget, width int, height int) {
 	C.gtk_window_resize((*C.GtkWindow)(unsafe.Pointer(window)), C.gint(width), C.gint(height))
 }
 
+func gtk_window_get_size(window *gtkWidget) (int, int) {
+	var width, height C.gint
+
+	C.gtk_window_get_size((*C.GtkWindow)(unsafe.Pointer(window)), &width, &height)
+	return int(width), int(height)
+}
+
 func gtk_fixed_new() *gtkWidget {
 	return (*gtkWidget)(unsafe.Pointer(C.gtk_fixed_new()))
 }

sysdata_unix.go

@@ -35,6 +35,19 @@ var classTypes = [nctypes]*classData{
 					return true		// do not close the window
 				}
 			},
+			"configure-event":	func(w *sysData) func() bool {
+				return func() bool {
+					if w.container != nil && w.resize != nil {		// wait for init
+						width, height := gtk_window_get_size(w.widget)
+						// run in another goroutine since this will be called in uitask
+						go func() {
+							w.resize(0, 0, width, height)
+						}()
+					}
+					// TODO really return true?
+					return true		// do not continue events; we just did so
+				}
+			},
 		},
 	},
 	c_button:		&classData{
@@ -80,6 +93,7 @@ println(s.widget)
 		uitask <- func() {
 			fixed := gtk_fixed_new()
 			gtk_container_add(s.widget, fixed)
+			// TODO return the container before assigning the signals?
 			for signal, generator := range ct.signals {
 				g_signal_connect(s.widget, signal, generator(s))
 			}
@@ -139,6 +153,7 @@ if classTypes[s.ctype] == nil || classTypes[s.ctype].setText == nil { return nil
 }
 
 func (s *sysData) setRect(x int, y int, width int, height int) error {
+if classTypes[s.ctype] == nil || classTypes[s.ctype].setText == nil { return nil }
 	ret := make(chan struct{})
 	defer close(ret)
 	uitask <- func() {