From 73f7fdf59d1c1f680487bba07aa2f025e01b925b Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Tue, 5 May 2015 12:57:31 +0200
Subject: [PATCH] Round textbox caret to device pixels.

---
 Perspex.Controls/Presenters/TextPresenter.cs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Perspex.Controls/Presenters/TextPresenter.cs b/Perspex.Controls/Presenters/TextPresenter.cs
index 5b1e1bf59e..a0776dad02 100644
--- a/Perspex.Controls/Presenters/TextPresenter.cs
+++ b/Perspex.Controls/Presenters/TextPresenter.cs
@@ -100,7 +100,14 @@ namespace Perspex.Controls.Presenters
 
                 if (this.caretBlink)
                 {
-                    context.DrawLine(new Pen(caretBrush, 1), charPos.TopLeft, charPos.BottomLeft);
+                    var x = Math.Floor(charPos.X) + 0.5;
+                    var y = Math.Floor(charPos.Y) + 0.5;
+                    var b = Math.Ceiling(charPos.Bottom) - 0.5;
+
+                    context.DrawLine(
+                        new Pen(caretBrush, 1), 
+                        new Point(x, y), 
+                        new Point(x, b));
                 }
             }
         }