static GObject *
eog_thumb_nav_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_params)
{
GObject *object;
EogThumbNavPrivate *priv;
object = G_OBJECT_CLASS (eog_thumb_nav_parent_class)->constructor
(type, n_construct_properties, construct_params);
priv = EOG_THUMB_NAV_GET_PRIVATE (object);
if (priv->thumbview != NULL)
{
gtk_container_add (GTK_CONTAINER (priv->sw), priv->thumbview);
gtk_widget_show_all (priv->sw);
}
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->sw),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_NEVER);
return object;
}
static void
eog_thumb_nav_adj_changed (GtkAdjustment *adj, gpointer user_data)
{
EogThumbNav *nav;
EogThumbNavPrivate *priv;
gboolean ltr;
nav = EOG_THUMB_NAV (user_data);
priv = EOG_THUMB_NAV_GET_PRIVATE (nav);
ltr = gtk_widget_get_direction (priv->sw) == GTK_TEXT_DIR_LTR;
gtk_widget_set_sensitive (ltr ? priv->button_right : priv->button_left,
gtk_adjustment_get_value (adj)
< gtk_adjustment_get_upper (adj)
- gtk_adjustment_get_page_size (adj));
}
static void
eog_thumb_nav_vadj_changed (GtkAdjustment *vadj, gpointer user_data)
{
EogThumbNav *nav;
EogThumbNavPrivate *priv;
gdouble value, upper, page_size;
nav = EOG_THUMB_NAV (user_data);
priv = EOG_THUMB_NAV_GET_PRIVATE (nav);
g_object_get (vadj,
"value", &value,
"upper", &upper,
"page_size", &page_size,
NULL);
gtk_widget_set_sensitive (priv->button_up, value > 0);
gtk_widget_set_sensitive (priv->button_down,
value < upper - page_size);
}
static void
eog_thumb_nav_hadj_changed (GtkAdjustment *hadj, gpointer user_data)
{
EogThumbNav *nav;
EogThumbNavPrivate *priv;
gboolean ltr;
gdouble value, upper, page_size;
nav = EOG_THUMB_NAV (user_data);
priv = EOG_THUMB_NAV_GET_PRIVATE (nav);
ltr = gtk_widget_get_direction (priv->sw) == GTK_TEXT_DIR_LTR;
g_object_get (hadj,
"value", &value,
"upper", &upper,
"page_size", &page_size,
NULL);
gtk_widget_set_sensitive (ltr ? priv->button_right : priv->button_left,
value < upper - page_size);
}