From cc9d63b46a666cdee74c62ca66c9f3a20ac0fc20 Mon Sep 17 00:00:00 2001
From: ocornut <omarcornut@gmail.com>
Date: Wed, 13 Aug 2014 17:07:57 +0100
Subject: [PATCH] Fixed columns lines not being pixel aligned

---
 imgui.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/imgui.cpp b/imgui.cpp
index e0a49b46..69f2496b 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -4442,7 +4442,8 @@ void Columns(int columns_count, const char* id, bool border)
 
 			// Draw before resize so our items positioning are in sync with the line
 			const ImU32 col = window->Color(held ? ImGuiCol_ColumnActive : hovered ? ImGuiCol_ColumnHovered : ImGuiCol_Column);
-			window->DrawList->AddLine(ImVec2(x, y1), ImVec2(x, y2), col);
+			const float xi = (float)(int)x;
+			window->DrawList->AddLine(ImVec2(xi, y1), ImVec2(xi, y2), col);
 
 			if (held)
 			{