From 1f26a83ed89e04cce614e9e98d38d82cd72297cc Mon Sep 17 00:00:00 2001
From: Brent Simmons <brent@ranchero.com>
Date: Sat, 18 Nov 2017 11:39:25 -0800
Subject: [PATCH] =?UTF-8?q?Use=20a=20layer=20for=20background=20color=20fo?=
 =?UTF-8?q?r=20timeline=20table=20cell.=20Don=E2=80=99t=20use=20drawRect:?=
 =?UTF-8?q?=20for=20performance=20reasons.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Timeline/Cell/TimelineTableCellView.swift        | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/Evergreen/MainWindow/Timeline/Cell/TimelineTableCellView.swift b/Evergreen/MainWindow/Timeline/Cell/TimelineTableCellView.swift
index 384120ee0..0fe1f8e92 100644
--- a/Evergreen/MainWindow/Timeline/Cell/TimelineTableCellView.swift
+++ b/Evergreen/MainWindow/Timeline/Cell/TimelineTableCellView.swift
@@ -31,6 +31,10 @@ class TimelineTableCellView: NSTableCellView {
 		return true
 	}
 
+	override var wantsUpdateLayer: Bool {
+		return true
+	}
+
 	var isEmphasized = false {
 		didSet {
 			dateView.emphasized = isEmphasized
@@ -114,7 +118,7 @@ class TimelineTableCellView: NSTableCellView {
 		feedNameView.rs_setFrameIfNotEqual(layoutRects.feedNameRect)
 	}
 
-	override func draw(_ dirtyRect: NSRect) {
+	override func updateLayer() {
 
 		let color: NSColor
 		if isSelected {
@@ -123,8 +127,10 @@ class TimelineTableCellView: NSTableCellView {
 		else {
 			color = NSColor.white
 		}
-		color.set()
-		dirtyRect.fill()
+
+		if layer?.backgroundColor != color.cgColor {
+			layer?.backgroundColor = color.cgColor
+		}
 	}
 
 	private func updateTitleView() {