From d8bf83a85a6fd75d9443ab57866c9680171177a6 Mon Sep 17 00:00:00 2001
From: Richard Heck <rgheck@comcast.net>
Date: Fri, 16 Jan 2009 23:40:37 +0000
Subject: [PATCH] Cache the getInfo() return value. This will matter shortly.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@28190 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/BiblioInfo.cpp | 12 +++++++++---
 src/BiblioInfo.h   |  2 ++
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/BiblioInfo.cpp b/src/BiblioInfo.cpp
index 68d37e83e2..7251649f5a 100644
--- a/src/BiblioInfo.cpp
+++ b/src/BiblioInfo.cpp
@@ -175,9 +175,13 @@ docstring const BibTeXInfo::getYear() const
 
 docstring const BibTeXInfo::getInfo() const
 {
+	if (!info_.empty())
+		return info_;
+
 	if (!is_bibtex_) {
 		BibTeXInfo::const_iterator it = find(from_ascii("ref"));
-		return it->second;
+		info_ = it->second;
+		return info_;
 	}
  
 	// FIXME
@@ -224,8 +228,10 @@ docstring const BibTeXInfo::getInfo() const
 		result << ", " << docLoc;
 
 	docstring const result_str = rtrim(result.str());
-	if (!result_str.empty())
-		return result_str;
+	if (!result_str.empty()) {
+		info_ = result_str;
+		return info_;
+	}
 
 	// This should never happen (or at least be very unusual!)
 	return docstring();
diff --git a/src/BiblioInfo.h b/src/BiblioInfo.h
index 0baa06c5c2..f0a9b1180e 100644
--- a/src/BiblioInfo.h
+++ b/src/BiblioInfo.h
@@ -92,6 +92,8 @@ private:
 	docstring all_data_;
 	/// the BibTeX entry type (article, book, incollection, ...)
 	docstring entry_type_;
+	/// a cache for getInfo()
+	mutable docstring info_;
 	/// our map: <field, value>
 	std::map <docstring, docstring> bimap_;
 };