X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Ffrontends%2FFontMetrics.h;h=c02606c4384f3536c0759b13503bbc4413e30022;hb=b7f6b979d0f889f08e735f35378bb20ba3788b4b;hp=1c1a658f8a4e4fdc09a1ad878f3823e21e45ace5;hpb=b68f391232887a7879d8e736f14dd7692f56c365;p=lyx.git

diff --git a/src/frontends/FontMetrics.h b/src/frontends/FontMetrics.h
index 1c1a658f8a..c02606c438 100644
--- a/src/frontends/FontMetrics.h
+++ b/src/frontends/FontMetrics.h
@@ -65,6 +65,14 @@ public:
 	virtual Dimension const defaultDimension() const = 0;
 	/// return the em size
 	virtual int em() const = 0;
+	/// return the width of a line for underlining
+	virtual int lineWidth() const = 0;
+	/// return the distance from the base line to where an underline
+	/// should be drawn.
+	virtual int underlinePos() const = 0;
+	/// return the distance from the base line to where the strike out line
+	/// should be drawn.
+	virtual int strikeoutPos() const = 0;
 
 	/// return the width of the char in the font
 	virtual int width(char_type c) const = 0;
@@ -117,9 +125,10 @@ public:
 		int & descent) const = 0;
 	/**
 	 * fill in width,ascent,descent with the values for the
-	 * given string in the font for a button.
+	 * given string in the font for a button with given offset.
 	 */
 	virtual void buttonText(docstring const & str,
+		const int offset,
 		int & width,
 		int & ascent,
 		int & descent) const = 0;
@@ -134,6 +143,10 @@ public:
 	inline int center(char_type c) const {
 		return (rbearing(c) - lbearing(c)) / 2;
 	}
+
+	/// return the number of expanding characters taken into account for
+	/// increased inter-word spacing during justification
+	virtual int countExpanders(docstring const & str) const = 0;
 };