Needed for getting proper previews in the QtQuick 2 based kcm.
Obviously this breaks Aurorae as Aurorae is not yet migrated to
QtQuick 2. But there is no more broken than broken anyway.
The event filtering on Qt level does not work any more. The information
is not updated properly. Grabbing the mouse through QWidget resets the
cursor shape to the default shape, so it cannot be used.
As we don't want Qt to ever see the events it's a good idea to use a
native event filter to filter the events away before they are delivered
to Qt.
To simplify the handling the grabber widget is put into a QScopedPointer.
Screenedges KCM is adjusted to build against Qt5. Most notable
changes:
* no longer links kworkspace as ScreenPreviewWidget got moved into
the KCM
* ui file is adjusted to not crash (see git log of kcmdesktop)
Removes the functionality for Plasma::Wallpapers as that doesn't exist
any more and is not needed by the Screenedges KCM. The KCM still has
way too many functionality, but that can stay for the moment as it's
probably best to reimplement the monitor and the actions in QML.
The ScreenPreviewWidget doesn't make much sense any more for the general
useage as it's not QML based and thus not suited for any usage in Plasma.
This means that features like previewing the Plasma wallpaper cannot
work any more.
The Widget is only used in a few KCMs (KDM, Screensavers, Screenedges).
Currently we expect that KDM and legacy X Screensavers won't make it into
the next release, it makes sense to just move the widget to screenedges
where it's still useful.
This change has been discussed with notmart.
Note to people compiling from source: it's only the default of the
cmake variable which got changed. You have to delete the variable
from the cache to get this change.
with 4 instead of just altering the default value
It seems the value is actually written for some ppl.
Worse: former patch didn't actually work as expected
anymore
CCBUG: 321897
With QtQuick2 KWin is no longer the only one having an OpenGL context
thus we need to ensure that our context is current. If not it results in
highly interesting crashes when our code is executed on the QtQuick
context.
The context is made current before we swap and before we start to render
a frame. During rendering a frame it's not made current again based on
the assumption that while we render there is no interference. If this
assumption doesn't hold, we need a more sophisticated solution at the
moment it seems to fix the crashes.
Our back shortcut is registered as Alt+Shift+Backtab but our converted
Qt key coming into the test method is Alt+Shift+Tab. The logic so far
made this always fire for the normal Alt+Tab shortcut as at some point
the Shift modifier gets removed to do the test.
To handle it properly we first have to extract all the modifiers to just
get the key. If the key is Tab, we replace it with Backtab, combine it
with the extracted mods so it will be Alt+Shift+Backtab which matches
the registered shortcut.
The existing backtab solution can probably be removed and is clearly
wrong as it uses the keys as flags which they aren't.
