Add window tiling support

[matinlotfali]

This new feature closes #104

[lomenzel]

will this also disable rounded corners on tiled windows with a gap? because there it would be nice to keep it

[matinlotfali]

will this also disable rounded corners on tiled windows with a gap?

I am new to tiling windows. How would someone tile windows with a gap? Can you show me?

[lomenzel]

i use the polonium addon (so i guess this uses the tiling api introduced in 5.27) so technically they are tiled, but they dont touch each other.

[matinlotfali]

It looks like polonium implements its own algorithm and modifications for tiling.

Sadly, my only dependency (KWinEffect library) doesn't provide me with signals to monitor the tiling state. So I had to write my own algorithm to just detect the tiling situation on every window.

This means with my algorithm, even if you just drag and move your windows in a way that they cover the width or height of the screen, it would be considered a tiled situation.

I don't know how crazy it would be to check if the space between screen edges and windows are the same, it would also be considered a tiled situation...

[matinlotfali]

@lomenzel I am assuming that the gap is just one number that is used everywhere (horizontally, vertically, edges of screen, and between windows)?

[lomenzel]

Yes

[lomenzel]

This means with my algorithm, even if you just drag and move your windows in a way that they cover the width or height of the screen, it would be considered a tiled situation.

That is perfect. If tiled with gaps the rounded corners are perfect and should stay

[matinlotfali]

@lomenzel I implemented the gap calculation but I can't test it. Can you test it for me?

[lomenzel]

It works just fine all floating windows have round corners tiled ones not. 😁, Except for the toggle "disable roundness on Tile/maximize" it only affects the maximized but not the tiles ones, they always have no roundness regardless of the setting.

[matinlotfali]

I guess I can't run away from installing polonium on my computer to figure out what is hapenning.

[lomenzel]

I thought polonium just uses the tiling feature of plasma itself. Pressing meta+t lets you make a layout and then drag the windows while holding shift into the tiling zone. In the meta+t screen you can also set the padding

[matinlotfali]

Pressing meta+t lets you make a layout and then drag the windows while holding shift into the tiling zone

Fantastic! I didn't know that at all. Thanks for teaching me.
I used this to fix my code. Can you try it again?

[guzman109]

Does this work? I have the main branch installed but do not see a difference

[matinlotfali]

@guzman109 It should work. Post an issue with screenshots and debug logs if it doesn't