This was missing from what is available in KWin core. The brightness and
saturation are implemented using a custom shader which uses the same
logic as what we use in the scene shader.
We are only rendering an image, so it's better to load the image into a
texture. This allows to properly scale the example preview which
magically fixes all the layouting problems which used to be there.
After changes in PlasmaCore.Dialog we can finally get rid of updating
the position on each visible change.
It's not 100 % perfect yet, seems the binding on screenGeometry is not
working properly. That needs investigation.
Videos for the following effects are added:
* Dim Inactive
* Dim Screen for Administration Mode
* Invert
* Looking Glass
* Magnifier
* Mouse Click
* Track Mouse
* Zoom
Link for Present Windows video fixed.
[Common]
UseBackgroundGradient=true
Option is hidden (no UI element) because of string freeze
Also removed decoration blend style option.
Background gradient is now always decided based on window flag.
CCBUG: 273423
Used to be the QQuickView implementation for the tabbox. As it's now
controlled through opening windows from QML directly it's no longer
needed or used anywhere.
Needs to implement a dummy switcher item. As the root item of the
switchers are no longer QQuickItem derived it cannot use a QQuickView.
Instead a component gets created and the switcher is just shown on the
primary screen. It's a more appropriate preview now which is not
put into a dialog window.
To make it more realistic (and to be able to dismiss it) the preview
grabs keyboard and mouse and closes itself if escape, return, enter or
space is pressed.
As well clicking outside the preview window closes the preview.
No longer needed in a Plasma2 world as the components have a thumbnail
component, so the hack to go over KWin to render the thumbnails is no
longer needed.
Approved by Aaron on mailinglist:
https://mail.kde.org/pipermail/active/2013-December/007254.html
By not using a QQuickView it becomes possible to just use a
PlasmaCore.Dialog or a Quick.Window in the TabBox qml and thus it's
possible to simplify the qml code.
To support this a new SwitcherItem is introduced and exported to QML.
It's a simple QObject providing all the properties which used to be
exported to the root context. A declarative TabBox is expected to
use one of these items. The C++ side finds the Switcher and for that
supports the case that the SwitcherItem is the rootItem or a child
item.
A declarative TabBox has also to create a QQuickWindow, e.g. a
PlasmaCore.Dialog. The visibility of that window should be controlled
through the visible property on the SwitcherItem. The underlying C++
implementation assumes that a TabBox only uses one window (it needs to
get destroyed once it's hidden and included in highlight windows).
Thanks to this change it's no longer needed to reload the TabBox
whenever it gets shown or the alternative TabBox gets shown. Instead
the same QML script can get reused. Other created switchers are ignored
as the visible property won't be changed to true.
