Maximised windows sometimes have curved corners (significant problem!)

[fubarbundy]

Reproduceable for me by opening synaptic, maximising, then closing and opening again. Now the maximised window has slightly curved corners exposing a pixel or two in each of the top corners of the underlying maximised window or desktop.

This is a glitch that is in contrast to the usual maximised state in which the title bar and outermost buttons extend all the way into the corners, in which case the user can 'throw' the mouse into the corners and easily land on the metacity buttons (Fitt's law).

Fitt's compliance is a fantastic thing, because the user doesn't have to carefully aim for tiny buttons to for instance close the window, but if one thing is worse than non-compliance, it is unreliable compliance. This bug has caused me to accidentally close the underlying window (sometimes Firefox with many tabs open!) because when the mouse is 'thrown' to the corner, clicking hits the properly drawn maximised window underneath.

------->See attached screenshots.

p.s., when the window is in a badly-drawn maximised state, unmaximising/remaximising (eg by double-clicking on the title bar) does all sorts of weird things with the metacity button position.

[fubarbundy (launchpad-mailtic)]

Window fully extends to corner as intended

[fubarbundy (launchpad-mailtic)]

Doesn't extend into corner, non-obviously exposing controls of window underneath

[fubarbundy (launchpad-mailtic)]

Please note - this has nothing to do with button layout - I tested and confirmed with the default Ubuntu button order (menu:minimize,maximize,close), and so 'throwing to close' problem still applies to top right corner!

[Dennis Kaarsemaker (dennis)]

Rejecting as duplicate