[Interest] QList to QML transfer optimization

2016-05-30 Thread Maxim Bescherevnykh
Hello, Is possible to transfer QList to QML (to Map path) without temporary copy conversion to QVariantList? What is fastest way to convert QList to QVariantList? Currently i doing it that way: QVariantList tmp; tmp.reserve(data.size()); for (const QGeoCoordinate& i: data) tmp.push_back(QVaria

[Interest] QtPositioning high delay on QGeoPositionInfoSource::startUpdates

2016-04-01 Thread Maxim Bescherevnykh
QGeoPositionInfoSource::startUpdates startup time vary in high range 2 ms ~ 1 ms sometimes there is very high delays that freeze UI: "Looper Thread startup time in ms: 1189" "Looper Thread startup time in ms: 20" "Looper Thread startup time in ms: 8189" ... values from Android device (Nexus 5)

[Interest] Qt 5.6 high DPI scaling & resources

2016-02-18 Thread Maxim Bescherevnykh
In Qt Quick Controls 1 i can use an ldpi/mdpi/hdpi/etc. icon image depending on target screen DPI and icons looks perfect with proper size. Qt Quick Controls 2 designed to be used with Qt::AA_EnableHighDpiScaling at least on X11, Windows, Android, Eglfs. But i don't realise whats the right way to d