Ideal screen rotation
openmoko at underhand.org
Tue Nov 10 13:08:06 CET 2009
Rui Miguel Silva Seabra wrote:
> On Tue, Nov 10, 2009 at 12:00:31AM +0000, Dave Ball wrote:
>> option1: New atoms in the _NET_WM_STATE property.
>> - _NET_WM_STATE_LANDSCAPE
>> - _NET_WM_STATE_PORTRAIT
>> If neither is present for a given window, WM can choose (based on
>> the accelerometers). Both present is an error - or could be defined
>> as leave the window in it's current orientation.
>> option2: New property.
>> 0 = Either / WM decides
>> 1 = Landscape
>> 2 = Portrait
> There are two landscape positions and 2 portrait positions :)
Doh - of course! Which would lead to:
0 = Either / WM decides
1 = Landscape
2 = Portrait
3 = Landscape inverted
4 = Portrait inverted
However, what's the use-case for an application requesting either of the
inverted states? I can't see when those would be useful - in terms of
hints the app would supply.
Obviously, if the WM was deciding orientation based on the device
position, you would correctly rotate to the inverted states, but if an
application is built for portrait or landscape is there any reason a
developer would not want the "normal" portrait/landscape orientation for
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