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Big improvement in speed ( callgrind )

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This patch makes use of a cache variable instead of creating / accessing a
new one via operator[], because for some reason QGraphicsPolygonItem
doesn't return a reference for polygon and a copy is always made.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Tomaz Canabrava 2014-02-05 15:45:23 -02:00 committed by Dirk Hohndel
parent ed230f8aac
commit 151a90bec0
2 changed files with 2 additions and 2 deletions
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3
qt-ui/profile/diveprofileitem.cpp
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@ -113,12 +113,13 @@ void DiveProfileItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* o
QPen pen;
pen.setCosmetic(true);
pen.setWidth(2);
QPolygonF poly = polygon();
// This paints the colors of the velocities.
for (int i = 1, count = dataModel->rowCount(); i < count; i++) {
QModelIndex colorIndex = dataModel->index(i, DivePlotDataModel::COLOR);
pen.setBrush(QBrush(colorIndex.data(Qt::BackgroundRole).value<QColor>()));
painter->setPen(pen);
painter->drawLine(polygon()[i-1],polygon()[i]);
painter->drawLine(poly[i-1],poly[i]);
}
}

1
qt-ui/profile/divetooltipitem.cpp
View file

@ -225,7 +225,6 @@ void ToolTipItem::refresh(const QPointF& pos)
{
clear();
int time = timeAxis->valueAt( pos );
qDebug() << "time" << time;
char buffer[500];
get_plot_details_new(&pInfo, time, buffer, 500);
addToolTip(QString(buffer));