From 5a918564aec9925be8092e7537ddf0b37cfd820b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrgen=20Spitzm=C3=BCller?= <spitz@lyx.org>
Date: Wed, 5 Mar 2008 18:52:30 +0000
Subject: [PATCH] * src/insets/InsetMathBox.{cpp,h}: 	- add validate method
 and validate \tag[*] (bug 4586)

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_5_X@23482 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/mathed/InsetMathBox.cpp | 9 +++++++++
 src/mathed/InsetMathBox.h   | 2 ++
 status.15x                  | 2 ++
 3 files changed, 13 insertions(+)

diff --git a/src/mathed/InsetMathBox.cpp b/src/mathed/InsetMathBox.cpp
index 0872973dbf..2ee8d7c234 100644
--- a/src/mathed/InsetMathBox.cpp
+++ b/src/mathed/InsetMathBox.cpp
@@ -14,6 +14,7 @@
 #include "MathData.h"
 #include "MathStream.h"
 #include "MathStream.h"
+#include "LaTeXFeatures.h"
 #include "support/std_ostream.h"
 
 
@@ -74,4 +75,12 @@ void InsetMathBox::infoize(odocstream & os) const
 }
 
 
+void InsetMathBox::validate(LaTeXFeatures & features) const
+{
+	if (name_ == "tag" || name_ == "tag*")
+		features.require("amsmath");
+	cell(0).validate(features);
+}
+
+
 } // namespace lyx
diff --git a/src/mathed/InsetMathBox.h b/src/mathed/InsetMathBox.h
index b217dc57fa..38cc0afd03 100644
--- a/src/mathed/InsetMathBox.h
+++ b/src/mathed/InsetMathBox.h
@@ -40,6 +40,8 @@ public:
 	void normalize(NormalStream & ns) const;
 	///
 	void infoize(odocstream & os) const;
+	///
+	void validate(LaTeXFeatures & features) const;
 
 private:
 	virtual std::auto_ptr<Inset> doClone() const;
diff --git a/status.15x b/status.15x
index 673cea3ada..e7bc0b93b7 100644
--- a/status.15x
+++ b/status.15x
@@ -67,6 +67,8 @@ What's new
 
 - Allow to enter starred math commands like "\tag*" (bug 4584).
 
+- Load amsmath when \tag or \tag* is used (bug 4586).
+
 - Fix parameter input of the math commands \makebox and \framebox (bug 2461).
 
 - When cutting a selection do not leave a dangling paragraph (bug 3995).