On Oct 18, 2012, at 10:07 AM, Sorvig Morten <[email protected]> wrote:

> According to git grep Qt 4 has 47 semi-public exported "qt_platform" 
> functions offering platform-spesific functionality. Most platform code is now 
> in plugins and can no longer export symbols. We need a plan for dealing with 
> these in Qt 5.
> 
> After a brief investigation these fall into several categories (some are in 
> more than one category):
> 
> - helper functions for other parts of Qt (qt_win_display_dc?)
> - utility functions (qt_mac_execute_apple_script, qt_mac_secure_keyboard)
> - access to Qt platform internals (qt_mac_nativeview_for)
> - obsolete (qt_mac_from_pascal_string)
> - strange (qt_mac_resolve_sys which just calls dlsym)
> 
> Proposed solution 0) Ignore the problem for Qt 5.0.
> 
> Proposed solution 1) Fix it:
> 
> - Remove/don't port obsolete functions (we can add them back later if it was 
> a mistake)
> - Add to QPA where it makes sense. The QPlatformNativeInterface subclasses 
> already gives access to may platform internal objects.
> - Public compatibility API goes int the platform extras modules. Many of the 
> utility functions can be implemented here as well.
> - Create "extras" modules for all platforms (we currently have qtmacextras in 
> the Qt playground)
> - Add the extras modules to the default Qt 5 distribution.
> 
> Given the current workload and schedule solution 0) is actually tempting, at 
> least for me. Releasing 5.0 with missing functions will perhaps tell us which 
> ones are in use.

I'd say we go with solution (0) for 5.0. But we'll need to pick this up again 
after the 5.0 release, create the platform specific add-ons and add them to the 
default distribution.
> 
> Does anyone want to pick this up?

Even if we do, I doubt the things will be ready in time for 5.0. Let's add them 
afterwards.

Cheers,
Lars

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