[osg-submissions] osgGA: complete super/hyper modifier support

[Robert Osfield]

Thanks Melchior, changes merged and submitted to SVN.

On Wed, Apr 9, 2008 at 3:08 PM, Melchior FRANZ <melchior.franz at gmail.com>
wrote:

> The GUIEventAdapter header file had KeySymbols for the super and
> hyper keys defined already, but these modifiers were missing in
> GUIEventAdapter::ModKeyMask, and the EventQueue ingored them as well.
>
> The attached diff/archive adds the missing parts for Super/Hyper
> modifier key support.
>
>
> I'm aware that this might not be supported on all systems/keyboards
> out of the box, but decided to submit it anyway because:
>
> - developers are aware of differences between input devices
>  (Some mice have scroll wheels, others don't. Some have five or
>  more buttons, some have only one. Some keyboards don't have
>  numpads, some have AltGr, some don't etc.)
>
> - even if someone relies on Hyper/Super in distributed software,
>  this is easy to fix and doesn't create lock-in conditions
>
> - while the names Hyper/Super may only be common on X11, they are
>  just symbol names and not OS-specific
>
> - even though some systems might not offer these additional modifiers
>  by default, it's likely that all of them have at least 8 modifier
>  levels internally, so it should only be a matter of OS configuration
>  to make them work
>
> - having super/hyper available is useful to offer a user ways
>  to define local key definitions that are safe from collisions with
>  predefined "official" key assignments
>
>
>
> Changed Files:
>  src/osgGA/EventQueue.cpp
>  include/osgGA/GUIEventAdapter
>  src/osgViewer/GraphicsWindowX11.cpp
>  examples/osgkeyboard/osgkeyboard.cpp
>
> m.
>
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>
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