[maemo-developers] Howto enable portrait mode support on Fremantle

[From: Alberto Garcia]

On Fri, Aug 21, 2009 at 02:53:01PM +0200, Cornelius Hald wrote:

I'll try to summarize how it works (I'm adding Kimmo to Cc in case I'm
forgetting something, as the rotating itself is done by the desktop,
libhildon only sets a WM hint).

Let's suppose we open a new window. Before we open that window the
device might already be in portrait mode.

If the portrait flags of the new window are:

1) No flags -> The screen is rotated to landscape mode.
2) _SUPPORT -> The screen keeps its orientation.
3) _SUPPORT + _REQUEST -> The screen is rotated to portrait mode
4) _REQUEST alone -> I don't think we're using that. Kimmo?

To detect whether a device is physically rotated I think you need to
use the DBus API already mentioned in this thread.

In other words: using this API alone won't change the orientation of
the screen when the device is physically rotated, am I right Kimmo?

Berto