[QNSView viewWillMoveToWindow:] remove observer from previous window

Even if there is not a new window, the notifications from the old one
are not needed.

Change-Id: I9c1858d25e49379ca4737e23beec06623e91b69c
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Doc: remove duplicate \externalpage definitions

Delete all duplicate \externalpage definitions from
corelib, printsupport and testlib sources.

Change-Id: I7dc5358861f4dad3e8ce080619b61ca3da64ec85
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
QCocoaBackingStore: Initialize non-opaque images with transparent color

In particular, this is needed when a QWidget has WA_TranslucentBackground set
and nobody is painting anything behind it (except maybe some native view).

Change-Id: Ib1f0714f85fa7eeced527617ecd09bb2ed6ddfc9
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
QMacNativeWidget: Background should be transparent

Cocoa will draw it for us.

Change-Id: I73c124749658ae76c97afe95b81b78c7ff15c378
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
QMacNativeWidget: Have example use a delegate

This would be the case in most if not all the real life use cases.

Change-Id: Ib7ebc6dbe471ce50f4bd1df9becba8e9806008e7
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
Cocoa: Allow widgets to receive events event when no app is running

This is necessary for QMacNativeWidget, where there exists a QApplication, but
is never executed. This directly translates in calls to the event dispatcher's
processEvents() function, whose calls we keep track. If no calls have been made,
we always allow timer and posted events to be processed.

Change-Id: Ia0062ee8c59a2572082f520a2eb85ed44a9856a7
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
rcc: Remove compile dependency on private headers.

Not needed anymore now that it's using the new commandline parser.

Change-Id: I1a44c8658d128e4fbb9a6fc5000025f55e5293c2
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>