QuickTile::setRelativeGeometry() and QuickRootTile::setVerticalSplit() or
QuickRootTile::setHorizontalSplit() can hit recursion when size
constraints start taking effect.
This change reworks how other quick tiles are resized. With the proposed
design, when relative geometry changes, QuickRootTile will notice that
and start resizing other tiles.
When QuickRootTile resizes horizontal or vertical split, it is going to
ignore QuickRootTile::relativeGeometryChanged() signals (m_resizedTile).
It prevents hitting the recursion and makes moving h/v splits more
predictable.
I do think that in order to make the tile design more robust to this
kind of bugs, it's worth splitting geometry in two kinds though - the
one that indicates the preferred geometry (implicitWidth/implicitHeight
in qtquick lingua) and the current geometry, the parent node then
monitors the preferred geometries and updates the current geometries.
BUG: 464621
* Allow to do quick tiling to custom tile geometries, windows will be snapped to tiles when dragged with the shift modifier pressed.
* Tile geometries are screen specific.
* The global shortcut Meta+T will trigger a fullscreen configuration ui as a QML effect for the tiles which allows to add, remove and resize tiles
* UI and behavior is a bit similar to the Windows Fancy Zones addon: https://docs.microsoft.com/en-us/windows/powertoys/fancyzones
* Its main scope is to help the workflow with very big monitors, especially ultra wide ones, where most application don't make sense maximized to the full screen (eventually also support games to be full screened to a given tile instead of the whole screen)
* it should get also some bindings for scripting, as its ain goal is not to replicate other popular tiling window managers, but should give the popular kwin tiling scripts to have a more robust infrastructure
* it will eventually get support for a set of predefined layouts, but this is for a second phase
BUG: 438788
