From 1380f39cfd2d6fa41f8289501187538c7df0f82e Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Wed, 25 Nov 2015 00:07:16 +0100
Subject: [PATCH] Don't get caret position unless needed.

---
 src/Perspex.Controls/Presenters/TextPresenter.cs | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/Perspex.Controls/Presenters/TextPresenter.cs b/src/Perspex.Controls/Presenters/TextPresenter.cs
index 4b68d160e5..6aabc6836f 100644
--- a/src/Perspex.Controls/Presenters/TextPresenter.cs
+++ b/src/Perspex.Controls/Presenters/TextPresenter.cs
@@ -91,9 +91,7 @@ namespace Perspex.Controls.Presenters
             base.Render(context);
 
             if (selectionStart == selectionEnd)
-            {
-                var charPos = FormattedText.HitTestTextPosition(CaretIndex);
-                
+            {                
                 var backgroundColor = (((Control)TemplatedParent).GetValue(BackgroundProperty) as SolidColorBrush)?.Color;
                 var caretBrush = Brushes.Black;
 
@@ -108,6 +106,7 @@ namespace Perspex.Controls.Presenters
                 
                 if (_caretBlink)
                 {
+                    var charPos = FormattedText.HitTestTextPosition(CaretIndex);
                     var x = Math.Floor(charPos.X) + 0.5;
                     var y = Math.Floor(charPos.Y) + 0.5;
                     var b = Math.Ceiling(charPos.Bottom) - 0.5;