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Details

Type: Bug
Resolution: Done
Priority: P2: Important
Fix Version/s: 5.11.0 Beta 2
Affects Version/s: 5.10.0
Component/s: Quick: Controls 2
Labels:
None
Environment:
Ubuntu 16.04 Xenial

Commits:
01b0e2316771b495e3ef3586585f2bc626557394

Description

Size of a font in the QML application depends on the call to QApplication::font() function. In case of Ubuntu it's smaller after calling it. I'm pretty sure it wasn't the case in Qt 5.7 that I was using previously.

Here is a small application reproducing the issue. Also, screenshot with a result of calling with and without 'small' parameter is attached.

#include <QApplication>
#include <QFont>
#include <QQmlApplicationEngine>
#include <QQmlContext>

int main(int argc, char** argv) {
  QApplication app(argc, argv);

  QString app_name = "big";

  if (argc > 1 && app.arguments().at(1) == "small") {
    auto font = app.font();
    app_name  = "small";
  }

  QQmlApplicationEngine engine;
  engine.rootContext()->setContextProperty("app_name", app_name);
  engine.loadData(R"(
import QtQuick 2.10
import QtQuick.Controls 2.3

ApplicationWindow {
  title: app_name
  visible: true

  Text {
    text: "<b>Some text</b>"
  }
}
)");

  return app.exec();
}