From 6a702a2f99af4308973fb5b088db6edcc49fbe90 Mon Sep 17 00:00:00 2001
From: Richard Heck <rgheck@comcast.net>
Date: Wed, 31 Mar 2010 21:17:30 +0000
Subject: [PATCH] HTML for substack. Sort of. There's an odd problem here, that
 is actually a general LyX bug, but I'll report that to the list.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@33991 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/mathed/InsetMathSubstack.cpp | 18 +++++++++++++++++-
 src/mathed/InsetMathSubstack.h   |  4 +++-
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/mathed/InsetMathSubstack.cpp b/src/mathed/InsetMathSubstack.cpp
index 544230a659..5f7e9f644b 100644
--- a/src/mathed/InsetMathSubstack.cpp
+++ b/src/mathed/InsetMathSubstack.cpp
@@ -118,9 +118,25 @@ void InsetMathSubstack::maple(MapleStream & os) const
 }
 
 
+void InsetMathSubstack::htmlize(HtmlStream & os) const
+{
+	os << MTag("span", "class='substack'");
+	for (row_type row = 0; row < nrows(); ++row) 
+		os << MTag("span") << cell(index(row, 0)) << ETag("span");
+	os << ETag("span");
+}
+
+	
 void InsetMathSubstack::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.substack{display: inline-block; vertical-align: middle; text-align:center; font-size: 75%;}\n"
+			"span.substack span{display: block;}\n"
+			"</style>");
+	
 	InsetMathGrid::validate(features);
 }
 
diff --git a/src/mathed/InsetMathSubstack.h b/src/mathed/InsetMathSubstack.h
index fbf5f756cc..612187ae89 100644
--- a/src/mathed/InsetMathSubstack.h
+++ b/src/mathed/InsetMathSubstack.h
@@ -39,11 +39,13 @@ public:
 	///
 	void write(WriteStream & os) const;
 	///
+	void htmlize(HtmlStream &) const;
+	///
 	void normalize(NormalStream &) const;
 	///
 	void maple(MapleStream &) const;
 	///
-	void validate(LaTeXFeatures & features) const;
+	void validate(LaTeXFeatures &) const;
 	///
 	InsetCode lyxCode() const { return MATH_SUBSTACK_CODE; }
 
-- 
2.39.2