diff --git a/mycpu.c b/mycpu.c
index 6f19d6a..c46f700 100644
--- a/mycpu.c
+++ b/mycpu.c
@@ -24,13 +24,17 @@ static void my_cpu_set_property(GObject *object, guint prop_id,
     const GValue *value, GParamSpec *pspec);
 static void my_cpu_get_property(GObject *object, guint prop_id,
     GValue *value, GParamSpec *pspec);
-static void my_cpu_size_request(GtkWidget *widget, 
-    GtkRequisition *requisition);
+static void my_cpu_get_preferred_width(GtkWidget *widget, 
+        gint      *minimal_w,
+        gint      *natural_w);
+static void my_cpu_get_preferred_height(GtkWidget *widget, 
+        gint      *minimal_h,
+        gint      *natural_h);
 static void my_cpu_size_allocate(GtkWidget *widget, 
     GtkAllocation *allocation);
 static void my_cpu_realize(GtkWidget *widget);
-static gboolean my_cpu_expose(GtkWidget *widget, 
-    GdkEventExpose *event);
+static gboolean my_cpu_draw(GtkWidget *widget, 
+    cairo_t *cr);
 
 /* Define type */
 G_DEFINE_TYPE(MyCpu, my_cpu, GTK_TYPE_WIDGET)
@@ -50,9 +54,10 @@ static void my_cpu_class_init(MyCpuClass *klass) {
    g_class->get_property  = my_cpu_get_property;
 
    w_class->realize       = my_cpu_realize;
-   w_class->size_request  = my_cpu_size_request;
+   w_class->get_preferred_width = my_cpu_get_preferred_width;
+   w_class->get_preferred_height = my_cpu_get_preferred_height;
    w_class->size_allocate = my_cpu_size_allocate;
-   w_class->expose_event  = my_cpu_expose;
+   w_class->draw  = my_cpu_draw;
 
    /* Install property */
    pspec = g_param_spec_double("percent", "Percent", 
@@ -143,16 +148,21 @@ static void my_cpu_realize(GtkWidget *widget) {
    gdk_window_set_user_data(priv->window, widget);
    gtk_widget_set_window(widget, priv->window);
 
-   widget->style = gtk_style_attach(gtk_widget_get_style( widget ),
-                             priv->window);
-   gtk_style_set_background(widget->style, priv->window, GTK_STATE_NORMAL);
+//   widget->style = gtk_style_attach(gtk_widget_get_style( widget ),
+//                             priv->window);
+//   gtk_style_set_background(widget->style, priv->window, GTK_STATE_NORMAL);
 }
 
-static void my_cpu_size_request(GtkWidget *widget, 
-    GtkRequisition *requisition) {
-                    
-   requisition->width  = WIDTH;
-   requisition->height = HEIGHT;
+static void my_cpu_get_preferred_width(GtkWidget *widget, 
+        gint      *minimal_w,
+        gint      *natural_w){
+   *minimal_w  = *natural_w  = WIDTH;
+}
+
+static void my_cpu_get_preferred_height(GtkWidget *widget, 
+        gint      *minimal_h,
+        gint      *natural_h){
+   *minimal_h = *natural_h = HEIGHT;
 }
 
 static void my_cpu_size_allocate(GtkWidget *widget,
@@ -171,16 +181,13 @@ static void my_cpu_size_allocate(GtkWidget *widget,
    }
 }
 
-static gboolean my_cpu_expose(GtkWidget *widget, 
-    GdkEventExpose *event) {
+static gboolean my_cpu_draw (GtkWidget *widget, 
+    cairo_t *cr) {
                 
    MyCpuPrivate *priv = MY_CPU(widget)->priv;
-   cairo_t *cr;
    gint limit;
    gint i;
 
-   cr = gdk_cairo_create(event->window);
-
    cairo_translate(cr, 0, 7);
 
    cairo_set_source_rgb(cr, 0, 0, 0);
@@ -201,8 +208,6 @@ static gboolean my_cpu_expose(GtkWidget *widget,
       cairo_fill(cr);
    }
 
-   cairo_destroy(cr);
-
    return TRUE;
 }