Added ui::ListView::sort_reverse() method.

2 files changed, 27 insertions, 0 deletions

diff --git a/src/ui/listview.cc b/src/ui/listview.cc
index 5601bd7..99bcd3c 100644
--- a/src/ui/listview.cc
+++ b/src/ui/listview.cc
@@ -118,4 +118,24 @@ void ListView::sort()
 	children().sort(compare_listitems);
 }
 
+bool compare_listitems_reverse(const Widget *first, const Widget *second)
+{
+	const ListItem *firstitem = dynamic_cast<const ListItem *>(first);
+	const ListItem *seconditem = dynamic_cast<const ListItem *>(second);
+	assert(firstitem && seconditem);
+	
+	if (firstitem->sortkey() < seconditem->sortkey()) {
+		return false;
+	} else if (firstitem->sortkey() > seconditem->sortkey()) {
+		return true;
+	} else {
+		return (firstitem->sortkey().length() > seconditem->sortkey().length());
+	}
+}
+
+void ListView::sort_reverse()
+{
+	children().sort(compare_listitems_reverse);
+}
+
 }
diff --git a/src/ui/listview.h b/src/ui/listview.h
index 81dd5a5..5a465f9 100644
--- a/src/ui/listview.h
+++ b/src/ui/listview.h
@@ -66,6 +66,13 @@ public:
 	 */
 	void sort();
 	
+	/**
+	 * @brief reverse sort child ListItems according to their sortkey
+	 * Sort will fail with an assert error if the ListView
+	 * contains any non-ListItem child widgets
+	 */
+	void sort_reverse();
+	
 protected:	
 	virtual void resize();