+/**
+ * Each paragraph is broken up into a number of rows on the screen.
+ * This is a list of such on-screen rows, ordered from the top row
+ * downwards.
+ */
+typedef std::vector<Row> RowList;
+
+class Buffer;
+class BufferView;
+class BufferParams;
+class Font;
+class Inset;
+class Paragraph;