From e0280048bcd9e602fb5073bc5f5526a5dffd1886 Mon Sep 17 00:00:00 2001
From: Tomaz Canabrava <tomaz.canabrava@intel.com>
Date: Fri, 16 Jan 2015 18:50:28 -0200
Subject: [PATCH] Cache the complex items to give us a boost of speed

This cache give us a huge gain in performance, going from
17% moving the mouse frenetically to 9%, wich is quite acceptable.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
---
 qt-ui/profile/diveprofileitem.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/qt-ui/profile/diveprofileitem.cpp b/qt-ui/profile/diveprofileitem.cpp
index 7531b2acb..490f045fd 100644
--- a/qt-ui/profile/diveprofileitem.cpp
+++ b/qt-ui/profile/diveprofileitem.cpp
@@ -23,6 +23,7 @@
 
 AbstractProfilePolygonItem::AbstractProfilePolygonItem() : QObject(), QGraphicsPolygonItem(), hAxis(NULL), vAxis(NULL), dataModel(NULL), hDataColumn(-1), vDataColumn(-1)
 {
+	setCacheMode(DeviceCoordinateCache);
 	connect(PreferencesDialog::instance(), SIGNAL(settingsChanged()), this, SLOT(settingsChanged()));
 }