X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FLength.h;h=8f192f85c6730d05a68a2102b20b06b8f06371fb;hb=28be7d552f62cc02fa86d7f79201d089bfb2d7b5;hp=ef17bac760671d55c933f27e92451cc19064eee7;hpb=66fa801e74e1775b31008df548332436ce79e2e1;p=lyx.git

diff --git a/src/Length.h b/src/Length.h
index ef17bac760..8f192f85c6 100644
--- a/src/Length.h
+++ b/src/Length.h
@@ -58,6 +58,7 @@ public:
 		PLW, //< Percent of LineWidth
 		PTH, //< Percent of TextHeight          // Herbert 2002-05-16
 		PPH, //< Percent of PaperHeight         // Herbert 2002-05-16
+		BLS, //< Percent of BaselineSkip        // uwestoehr 2017-04-01
 		UNIT_NONE ///< no unit
 	};
 
@@ -96,12 +97,15 @@ public:
 	 *	FontMetrics::em() to get this value.
 	 */
 	int inPixels(int text_width, int em_width = 0) const;
+
 	/** return the on-screen size of this length
 	 *
-	 *  This version of the function uses the right EM definition.
+	 *  This version of the function uses the current inset width as
+	 *  width and the EM value of the current font.
 	 */
 	int inPixels(MetricsBase const &) const;
 	/// return the value in Big Postscript points.
+	/// Caution: Inaccurate for em, ex, mu and percent units.
 	int inBP() const;
 
 	/// return the default unit (centimeter or inch)
@@ -110,6 +114,8 @@ public:
 	friend bool isValidLength(std::string const & data, Length * result);
 
 private:
+	/// Convert value to inch for text width and em width given in inch
+	double inInch(double text_width, double em_width) const;
 	///
 	double val_;
 	///