[GTK+] Added buttons. Things aren't quite being positioned properly yet though...

callbacks_unix.go

@@ -17,6 +17,7 @@ while we're at it the callback for our idle function will be handled here too fo
 // #include <gtk/gtk.h>
 // extern gboolean our_callback(gpointer);
 // extern gboolean our_delete_event_callback(GtkWidget *, GdkEvent *, gpointer);
+// extern void our_clicked_callback(GtkButton *, gpointer);
 import "C"
 
 //export our_callback
@@ -30,7 +31,13 @@ func our_delete_event_callback(widget *C.GtkWidget, event *C.GdkEvent, what C.gp
 	return our_callback(what)
 }
 
+//export our_clicked_callback
+func our_clicked_callback(button *C.GtkButton, what C.gpointer) {
+	our_callback(what)
+}
+
 var callbacks = map[string]C.GCallback{
 	"idle":			C.GCallback(C.our_callback),
 	"delete-event":		C.GCallback(C.our_delete_event_callback),
+	"clicked":			C.GCallback(C.our_clicked_callback),
 }

gtkcalls_unix.go

@@ -88,11 +88,22 @@ func gtk_container_add(container *gtkWidget, widget *gtkWidget) {
 	C.gtk_container_add((*C.GtkContainer)(unsafe.Pointer(container)), gtkwidget(widget))
 }
 
-func gtk_fixed_put(container *gtkWidget, widget *gtkWidget, x int, y int) {
-	C.gtk_fixed_put((*C.GtkFixed)(unsafe.Pointer(container)), gtkwidget(widget),
+func gtk_fixed_move(container *gtkWidget, widget *gtkWidget, x int, y int) {
+	C.gtk_fixed_move((*C.GtkFixed)(unsafe.Pointer(container)), gtkwidget(widget),
 		C.gint(x), C.gint(y))
 }
 
 func gtk_widget_set_size_request(widget *gtkWidget, width int, height int) {
 	C.gtk_widget_set_size_request(gtkwidget(widget), C.gint(width), C.gint(height))
 }
+
+func gtk_button_new() *gtkWidget {
+	return (*gtkWidget)(unsafe.Pointer(C.gtk_button_new()))
+}
+
+func gtk_button_set_label(button *gtkWidget, label string) {
+	clabel := C.CString(label)
+	defer C.free(unsafe.Pointer(clabel))
+	C.gtk_button_set_label((*C.GtkButton)(unsafe.Pointer(button)),
+		(*C.gchar)(unsafe.Pointer(clabel)))
+}

sysdata_unix.go

@@ -38,7 +38,18 @@ var classTypes = [nctypes]*classData{
 		},
 	},
 	c_button:		&classData{
-//		make:	gtk_button_new,
+		make:	gtk_button_new,
+		setText:	gtk_button_set_label,
+		signals:	map[string]func(*sysData) func() bool{
+			"clicked":		func(w *sysData) func() bool {
+				return func() bool {
+					if w.event != nil {
+						w.event <- struct{}{}
+					}
+					return true		// do not close the window
+				}
+			},
+		},
 	},
 	c_checkbox:	&classData{
 	},
@@ -77,6 +88,14 @@ println(s.widget)
 		s.container = <-ret
 	} else {
 		s.container = window.container
+		uitask <- func() {
+			gtk_container_add(s.container, s.widget)
+			for signal, generator := range ct.signals {
+				g_signal_connect(s.widget, signal, generator(s))
+			}
+			ret <- nil
+		}
+		<-ret
 	}
 	err := s.setText(initText)
 	if err != nil {
@@ -123,7 +142,8 @@ func (s *sysData) setRect(x int, y int, width int, height int) error {
 	ret := make(chan struct{})
 	defer close(ret)
 	uitask <- func() {
-		gtk_fixed_put(s.container, s.widget, x, y)
+println(s.ctype, x, y, width, height)
+		gtk_fixed_move(s.container, s.widget, x, y)
 		gtk_widget_set_size_request(s.widget, width, height)
 		ret <- struct{}{}
 	}