From 77bd365b391d64684f7faa78b44345ea6da1ff0f Mon Sep 17 00:00:00 2001
From: Richard Heck <rgheck@comcast.net>
Date: Wed, 31 Mar 2010 20:04:39 +0000
Subject: [PATCH] HTML for overset.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@33979 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/mathed/InsetMathOverset.cpp | 19 ++++++++++++++++++-
 src/mathed/InsetMathOverset.h   |  2 ++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/src/mathed/InsetMathOverset.cpp b/src/mathed/InsetMathOverset.cpp
index 6b49dce35c..cf7d6d3feb 100644
--- a/src/mathed/InsetMathOverset.cpp
+++ b/src/mathed/InsetMathOverset.cpp
@@ -90,9 +90,26 @@ void InsetMathOverset::mathmlize(MathStream & ms) const
 }
 
 
+void InsetMathOverset::htmlize(HtmlStream & os) const
+{
+	os << MTag("span", "class='overset'")
+		 << MTag("span", "class='top'") << cell(0) << ETag("span")
+		 << MTag("span") << cell(1) << ETag("span")
+		 << ETag("span");
+}
+
+
 void InsetMathOverset::validate(LaTeXFeatures & features) const
 {
-	features.require("amsmath");
+	if (features.runparams().isLaTeX())
+		features.require("amsmath");
+	else if (features.runparams().math_flavor == OutputParams::MathAsHTML)
+		features.addPreambleSnippet("<style type=\"text/css\">\n"
+			"span.overset{display: inline-block; vertical-align: bottom; text-align:center;}\n"
+			"span.overset span {display: block;}\n"
+			"span.top{font-size: 66%;}\n"
+			"</style>");
+
 	InsetMathNest::validate(features);
 }
 
diff --git a/src/mathed/InsetMathOverset.h b/src/mathed/InsetMathOverset.h
index 5fdeb32e04..ac055e1dc9 100644
--- a/src/mathed/InsetMathOverset.h
+++ b/src/mathed/InsetMathOverset.h
@@ -38,6 +38,8 @@ public:
 	///
 	void mathmlize(MathStream &) const;
 	///
+	void htmlize(HtmlStream &) const;
+	///
 	void validate(LaTeXFeatures & features) const;
 	///
 	InsetCode lyxCode() const { return MATH_OVERSET_CODE; }
-- 
2.39.2