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Improved areas rendering performance

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This commit is contained in:
Martin Tůma 2021-03-09 23:21:10 +01:00
parent 3ba684aafc
commit fa1025ea15
1 changed files with 3 additions and 5 deletions
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8
src/GUI/areaitem.cpp
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@ -52,12 +52,10 @@ QPainterPath AreaItem::painterPath(const Polygon &polygon)
for (int i = 1; i < polygon.size(); i++) {
const QVector<Coordinates> &lr = polygon.at(i);
QPainterPath hole;
hole.moveTo(_map->ll2xy(lr.first()));
path.moveTo(_map->ll2xy(lr.first()));
for (int j = 1; j < lr.size(); j++)
hole.lineTo(_map->ll2xy(lr.at(j)));
hole.closeSubpath();
path = path.subtracted(hole);
path.lineTo(_map->ll2xy(lr.at(j)));
path.closeSubpath();
}
return path;