SDL needs to see the header files when compiling to enable those
drivers runtime. It doesn't actually link against them: it just
needs to see the headers.
Since dropdown menus now get closed if they lose focus, 'instant close' dropdowns (i.e. the toolbar dropdowns) should no longer execute their action to avoid unintended actions.
Clicking and releasing on the query toolbar icon is meant to select the land-info tool.
This did not work as during closing a window, OnFocusLost() is called, which then closes the window again. These two calls toggled the land-info tool one and off in the same action.
Resolve by not calling Window::Close in OnFocusLost() if the window is already closing.
On Windows in fullscreen you cannot reach the top with
the cursor for the halve of the height of your toolbar.
Additionally, on Win10 in fullscreen you can see the actual toolbar.
Since dropdowns self-close, the detection of re-clicking a dropdown
button no longer worked, as the dropdown is already closed.
Instead set (and then test) a flag on the parent widget to indicate that
the dropdown closed. This method avoids looping windows on every click.
Solution is to not focus any tooltips, so that the dropdown doesn't lose focus. Tooltips don't accept any input so this does not change their behaviour.
Wayland doesn't support mouse warping, X11 only for native
systems (so not for remote desktop, WSLg, etc), and emscripten
neither without complications. All these cannot offer a
mouse-lock.
Basically, we drop RelativeMode completely, and use the same trick
as used by the Windows driver: read all motion events till the last
one, and use that as value.
Basically, we haven't been a good neighbour. Turns out you shouldn't
actually call FcFini when you are done, as some library might still
want to use FontConfig. And they use a shared instance for their
administration.
The idea is that you call FcInit once, and use FcConfigReference
after that to get an instance, you can release. This entry is
ref-counted, and things happen automatically based on that.
At least, I think.
