From ca91d508b2a33d105b1eecf3ac086104213bb47a Mon Sep 17 00:00:00 2001
From: Abdelrazak Younes <younes@lyx.org>
Date: Sat, 18 Dec 2010 07:37:12 +0000
Subject: [PATCH] LaTeX export small speedup: Introduce
 RandomAccessList::position() and use it.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@36931 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/output_latex.cpp           |  6 +++---
 src/support/RandomAccessList.h | 20 ++++++++++++++++++++
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/src/output_latex.cpp b/src/output_latex.cpp
index 4f39ee58d7..cc56d6b672 100644
--- a/src/output_latex.cpp
+++ b/src/output_latex.cpp
@@ -413,7 +413,7 @@ void TeXOnePar(Buffer const & buf,
 	}
 
 	if (text.inset().getLayout().isPassThru()) {
-		int const dist = distance(paragraphs.begin(), pit);
+		int const dist = paragraphs.position(pit);
 		Font const outerfont = text.outerFont(dist);
 
 		// No newline before first paragraph in this lyxtext
@@ -432,7 +432,7 @@ void TeXOnePar(Buffer const & buf,
 	}
 
 	if (style.pass_thru) {
-		int const dist = distance(paragraphs.begin(), pit);
+		int const dist = paragraphs.position(pit);
 		Font const outerfont = text.outerFont(dist);
 		pit->latex(bparams, outerfont, os, texrow,
 		           runparams, start_pos, end_pos);
@@ -690,7 +690,7 @@ void TeXOnePar(Buffer const & buf,
 		break;
 	}
 
-	Font const outerfont = text.outerFont(distance(paragraphs.begin(), pit));
+	Font const outerfont = text.outerFont(paragraphs.position(pit));
 
 	// FIXME UNICODE
 	os << from_utf8(everypar);
diff --git a/src/support/RandomAccessList.h b/src/support/RandomAccessList.h
index 7b0f1032dd..4c48b36db2 100644
--- a/src/support/RandomAccessList.h
+++ b/src/support/RandomAccessList.h
@@ -273,6 +273,26 @@ public:
 		iterCont_.clear();
 	}
 
+	size_t position(iterator it) const
+	{
+		size_t const s = iterCont_.size();
+		for (size_t i = 0; it != s; ++i) {
+			if (iterCont_[i] == it)
+				return i;
+		}
+		return s;
+	}
+
+	size_t position(const_iterator it) const
+	{
+		size_t const s = iterCont_.size();
+		for (size_t i = 0; i != s; ++i) {
+			if (iterCont_[i] == it)
+				return i;
+		}
+		return s;
+	}
+
 private:
 	void recreateVector()
 	{
-- 
2.39.5