From 119758358203fe04e33bbf540853a5d9c1d68c71 Mon Sep 17 00:00:00 2001
From: Fabian Jakobs <fabian.jakobs@web.de>
Date: Fri, 9 Apr 2010 18:17:03 +0200
Subject: [PATCH] fix viewport calculation

---
 GutterLayer.js     | 2 +-
 VirtualRenderer.js | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/GutterLayer.js b/GutterLayer.js
index cddac987..c283bfa8 100644
--- a/GutterLayer.js
+++ b/GutterLayer.js
@@ -8,7 +8,7 @@ function GutterLayer(parentEl)
 GutterLayer.prototype.update = function(config)
 {
   var html = [];
-  for (var i=config.firstRow; i<config.lastRow; i++)
+  for (var i=config.firstRow; i<=config.lastRow; i++)
   {
     html.push(
       "<div class='gutter-cell' style='height:" + config.lineHeight + "px;'>",
diff --git a/VirtualRenderer.js b/VirtualRenderer.js
index fdc6967f..0ff63a21 100644
--- a/VirtualRenderer.js
+++ b/VirtualRenderer.js
@@ -88,7 +88,7 @@ VirtualRenderer.prototype.draw = function()
   
   var lineCount = Math.ceil(minHeight / this.lineHeight);
   var firstRow = Math.round((this.scrollTop - offset) / this.lineHeight);
-  var lastRow = Math.min(lines.length, firstRow+lineCount);
+  var lastRow = Math.min(lines.length, firstRow+lineCount)-1;
 
   var layerConfig = this.layerConfig = {
     width: longestLine,
@@ -97,7 +97,7 @@ VirtualRenderer.prototype.draw = function()
     lineHeight: this.lineHeight,
     characterWidth: this.characterWidth
   };
-
+  
   for (var i=0; i < this.layers.length; i++) 
   {
     var layer = this.layers[i];