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Reduce the refresh rate of the toolTipItem to 25fps.

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This reduces a lot of CPU time and makes the overall use of the tooltip a
breeze.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Tomaz Canabrava 2015-01-16 16:45:13 -02:00 • committed by Dirk Hohndel
parent 67865a86be
commit ac40c458fa
2 changed files with 7 additions and 1 deletions
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5
qt-ui/profile/divetooltipitem.cpp
View file

@ -159,6 +159,7 @@ ToolTipItem::ToolTipItem(QGraphicsItem *parent) : QGraphicsRectItem(parent),
title->setBrush(Qt::white); title->setBrush(Qt::white);
setPen(QPen(Qt::white, 2)); setPen(QPen(Qt::white, 2));
refreshTime.start();
} }
ToolTipItem::~ToolTipItem() ToolTipItem::~ToolTipItem()
@ -240,6 +241,10 @@ void ToolTipItem::refresh(const QPointF &pos)
static QPainter painter(&tissues); static QPainter painter(&tissues);
static struct membuffer mb = { 0 }; static struct membuffer mb = { 0 };
if(refreshTime.elapsed() < 40)
return;
refreshTime.start();
int time = timeAxis->valueAt(pos); int time = timeAxis->valueAt(pos);
if (time == lastTime) if (time == lastTime)
return; return;

3
qt-ui/profile/divetooltipitem.h
View file

@ -6,6 +6,7 @@
#include <QPair> #include <QPair>
#include <QRectF> #include <QRectF>
#include <QIcon> #include <QIcon>
#include <QTime>
#include "display.h" #include "display.h"
class DiveCartesianAxis; class DiveCartesianAxis;
@ -59,7 +60,7 @@ private:
DiveCartesianAxis *timeAxis; DiveCartesianAxis *timeAxis;
plot_info pInfo; plot_info pInfo;
int lastTime; int lastTime;
QTime refreshTime;
QList<QGraphicsItem*> oldSelection; QList<QGraphicsItem*> oldSelection;
}; };