On Sat, Aug 5, 2017, at 11:41 AM, Paul Smedley wrote: > Thanks for the reply. Any hints on the minimal files necessary for gui > apps to work. At this stage, I'm not fussed about clipboard, drag and > drop, etc, just the bare minimal to get gui apps working.
Hi Paul, So the basic idea you've probably already gathered is that each platform needs to implement a "QPA" plugin: https://wiki.qt.io/Getting_Started_With_Lighthouse covers some of the basics here, but in a little more detail: A QPA plugin provides the glue for things like windowing and input between Qt and a native windowing system. To start with, take a look at the 'minimal' QPA plugin (which just does software rendering, AFAIR directed to image files on disk), and look at how to fill in things from there -- the starting points you'll want are a QPlatformIntegration, QPlatformWindow, and QPlatformBackingStore. You want to look at QWindowSystemInterface to deliver events (like expose events saying "please start/stop rendering the window", and input events) from your QPA plugin to QtGui. What you want past there is a bit more fuzzy and depends both on how complete you want your integration to be and what your platform provides, e.g. QPlatformClipboard and stuff like that, but I'd put most of that stuff in the "optional extras" basket. As you've already figured out, the structure and code involved is quite different, so I doubt it'll be a 1:1 port - but the existing plugins provide pretty good guidance on how to lay things out, and your existing code would be adaptable without too much work I think. Good luck, Robin -- Robin Burchell ro...@crimson.no _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
