// Line interface.
/**
+ * @brief Retrieves the total number of lines.
+ *
+ * @return The number of lines.
+ */
+ Length GetTotalNumberOfLines() const;
+
+ /**
* @brief Retrieves the number of lines and the index to the first line where the given range of glyphs is laid out.
*
* @param[in] glyphIndex Index to the first glyph.