Widgets and Quick hybrid UI development

Priority is on Widget application hosting Qt Quick content. The other way around requires a lot more work in Qt Widgets, and is currently not a priority.

Data transfer between QML and widgets

This was not part of the original project description, but we might have to think about data transfer between Qt Quick and Widgets, e.g - there's plenty of different ways:

• Interactive: Clipboard - copy and paste. Drag and drop
• Primitive datatypes (common between JS and C++) shouldn't require work/adaptations from us.
• Can e.g. C++ item models be shared and made accessible to Qt Quick/QML applications?

Inspiring resources

Other hybrid applications to look into:

• MuseScore
• Qt Creator uses QtQuick on the welcome screen? Is the profiler using QtQuick?