From cb147a8b82af998b641e5845d4dfad7ded908314 Mon Sep 17 00:00:00 2001
From: clifford <clifford@b57f626f-c46c-0410-a088-ec61d464b74c>
Date: Fri, 18 Dec 2009 07:51:26 +0000
Subject: Clifford Wolf: 	Improved editor performance by 	disabling
 syntax error highlighting when 	there is no syntax error to highlight

git-svn-id: http://svn.clifford.at/openscad/trunk@182 b57f626f-c46c-0410-a088-ec61d464b74c

diff --git a/mainwin.cc b/mainwin.cc
index 01a6b25..6649858 100644
--- a/mainwin.cc
+++ b/mainwin.cc
@@ -123,7 +123,7 @@ MainWindow::MainWindow(const char *filename)
 	fps = 0;
 	fsteps = 1;
 
-	highlighter = new Highlighter(editor->document());
+	highlighter = NULL;
 
 	QFont font;
 	font.setStyleHint(QFont::TypeWriter);
@@ -490,8 +490,13 @@ void MainWindow::compile(bool procevents)
 	last_compiled_doc = editor->toPlainText();
 	root_module = parse((last_compiled_doc + "\n" + commandline_commands).toAscii().data(), false);
 
-	delete highlighter;
-	highlighter = new Highlighter(editor->document());
+	if (highlighter) {
+		delete highlighter;
+		highlighter = NULL;
+	}
+	if (parser_error_pos >= 0) {
+		highlighter = new Highlighter(editor->document());
+	}
 
 	if (!root_module) {
 		if (!animate_panel->isVisible()) {
-- 
cgit v0.10.1