/**
* gtk_scrollable_set_vscroll_policy:
* @scrollable: a #GtkScrollable
* @policy: the vertical #GtkScrollablePolicy
*
* Sets the #GtkScrollablePolicy to determine whether
* vertical scrolling should start below the minimum height or
* below the natural height.
*
* Since: 3.0
**/
void
gtk_scrollable_set_vscroll_policy (GtkScrollable *scrollable,
GtkScrollablePolicy policy)
{
g_return_if_fail (GTK_IS_SCROLLABLE (scrollable));
g_object_set (scrollable, "vscroll-policy", policy, NULL);
}
/**
* gtk_scrollable_set_vadjustment:
* @scrollable: a #GtkScrollable
* @vadjustment: (allow-none): a #GtkAdjustment
*
* Sets the vertical adjustment of the #GtkScrollable.
*
* Since: 3.0
**/
void
gtk_scrollable_set_vadjustment (GtkScrollable *scrollable,
GtkAdjustment *vadjustment)
{
g_return_if_fail (GTK_IS_SCROLLABLE (scrollable));
g_return_if_fail (vadjustment == NULL || GTK_IS_ADJUSTMENT (vadjustment));
g_object_set (scrollable, "vadjustment", vadjustment, NULL);
}
/**
* gtk_scrollable_get_vscroll_policy:
* @scrollable: a #GtkScrollable
*
* Gets the vertical #GtkScrollablePolicy.
*
* Return value: The vertical #GtkScrollablePolicy.
*
* Since: 3.0
**/
GtkScrollablePolicy
gtk_scrollable_get_vscroll_policy (GtkScrollable *scrollable)
{
GtkScrollablePolicy policy;
g_return_val_if_fail (GTK_IS_SCROLLABLE (scrollable), GTK_SCROLL_MINIMUM);
g_object_get (scrollable, "vscroll-policy", &policy, NULL);
return policy;
}
/**
* gtk_scrollable_get_vadjustment:
* @scrollable: a #GtkScrollable
*
* Retrieves the #GtkAdjustment used for vertical scrolling.
*
* Return value: (transfer none): vertical #GtkAdjustment.
*
* Since: 3.0
**/
GtkAdjustment *
gtk_scrollable_get_vadjustment (GtkScrollable *scrollable)
{
GtkAdjustment *adj = NULL;
g_return_val_if_fail (GTK_IS_SCROLLABLE (scrollable), NULL);
g_object_get (scrollable, "vadjustment", &adj, NULL);
/* Horrid hack; g_object_get() returns a new reference but
* that contradicts the memory management conventions
* for accessors.
*/
if (adj)
g_object_unref (adj);
return adj;
}
static void
gwy_scroller_add(GtkContainer *container,
GtkWidget *child)
{
if (!GTK_IS_SCROLLABLE(child)) {
g_warning("gwy_scroller_add(): cannot add non scrollable widget "
"use gwy_scroller_add_with_viewport() instead");
return;
}
GtkBin *bin = GTK_BIN(container);
GtkWidget *current_child = gtk_bin_get_child(bin);
g_return_if_fail(!current_child);
GTK_CONTAINER_CLASS(gwy_scroller_parent_class)->add(container, child);
GwyScroller *scroller = GWY_SCROLLER(container);
Scroller *priv = scroller->priv;
g_object_set(child,
"hadjustment", priv->hadjustment,
"vadjustment", priv->vadjustment,
NULL);
}