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GtkListBox: Track the number of visible children

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This commit is contained in:
Alexander Larsson
2013-06-11 16:20:45 +02:00
parent 9510b79d78
commit b0b746b2ea
1 changed files with 25 additions and 4 deletions
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29
gtk/gtklistbox.c
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@ -80,6 +80,8 @@ struct _GtkListBoxPrivate
/* DnD */
GtkListBoxRow *drag_highlighted_row;
int n_visible_rows;
};
struct _GtkListBoxRowPrivate
@ -1316,9 +1318,21 @@ gtk_list_box_real_realize (GtkWidget* widget)
/* Children are visible if they are shown by the app (visible)
and not filtered out (child_visible) by the listbox */
static void
update_row_is_visible (GtkListBoxRow *row)
update_row_is_visible (GtkListBox *list_box, GtkListBoxRow *row)
{
row->priv->visible = gtk_widget_get_visible (GTK_WIDGET (row)) && gtk_widget_get_child_visible (GTK_WIDGET (row));
GtkListBoxPrivate *priv = list_box->priv;
gboolean was_visible;
was_visible = row->priv->visible;
row->priv->visible =
gtk_widget_get_visible (GTK_WIDGET (row)) &&
gtk_widget_get_child_visible (GTK_WIDGET (row));
if (was_visible && !row->priv->visible)
priv->n_visible_rows--;
if (!was_visible && row->priv->visible)
priv->n_visible_rows++;
}
static gboolean
@ -1339,7 +1353,7 @@ gtk_list_box_apply_filter (GtkListBox *list_box, GtkListBoxRow *row)
gtk_widget_set_child_visible (GTK_WIDGET (row), do_show);
update_row_is_visible (row);
update_row_is_visible (list_box, row);
}
static void
@ -1510,7 +1524,7 @@ gtk_list_box_update_header (GtkListBox *list_box, GSequenceIter* iter)
static void
gtk_list_box_row_visibility_changed (GtkListBox *list_box, GtkListBoxRow *row)
{
update_row_is_visible (row);
update_row_is_visible (list_box, row);
if (gtk_widget_get_visible (GTK_WIDGET (list_box)))
{
@ -1543,9 +1557,13 @@ gtk_list_box_real_add (GtkContainer* container, GtkWidget *child)
else
iter = g_sequence_append (priv->children, row);
row->priv->iter = iter;
gtk_widget_set_parent (GTK_WIDGET (row), GTK_WIDGET (list_box));
gtk_widget_set_child_visible (GTK_WIDGET (row), TRUE);
row->priv->visible = gtk_widget_get_visible (GTK_WIDGET (row));
if (row->priv->visible)
priv->n_visible_rows++;
gtk_list_box_apply_filter (list_box, row);
if (gtk_widget_get_visible (GTK_WIDGET (list_box)))
{
@ -1592,6 +1610,9 @@ gtk_list_box_real_remove (GtkContainer* container, GtkWidget* child)
return;
}
if (row->priv->visible)
priv->n_visible_rows--;
if (row->priv->header != NULL)
{
g_hash_table_remove (priv->header_hash, row->priv->header);