Tile the whole workspace

[m4l3z]

Hey again ! :p

Another feature that I'd be interested in would be the ability for Quicktile to :

• Detect all the non-minimized windows on the active workspace
• Try different tiling combinations when you press the corresponding keybinding
• Optional : Remember your favorites tiling combinations for N windows and proposes those firstly.
  I hope I could express the idea clearly.

[ssokolow]

That first requires the re-architecting for issue #10, which I've been meaning to get to since 2011 but keep getting distracted from.

(Issue #10 is about being able to dynamically adjust the tiling grid and have everything that's snapped to the grid adjust.)

Currently, QuickTile is an example of getting smart-looking effects out of dumb algorithms. When you ask it to tile something:

1. It asks the desktop for the active window
2. It checks if the window's size and position match a preset. If so, it picks the next preset in the sequence. If not, it picks the first preset in the sequence.
3. It asks the desktop to apply the new preset.

This has the problem that, because QuickTile re-discovers how things are tiled every time you press a hotkey and keeps no internal state on the desktop, you get things like bug #20, where a window like MPlayer won't cycle through dimensions because it refused to take on the aspect ratio QuickTile asked for.

That said, my biggest motivator for actually making fixes tends to be someone else asking for them, so maybe now's a good time to finally get started on solving #10. I'll see if I can find time to fit it in either this week or next week after I finish a rewrite of http://vffa.ficfan.org/ that I'd been wanting to do since 2007.

I'll leave this issue open as a TODO for after I get #10 fixed.