[Panel-devel] Plasma::PushButton behaviour

[Jason Stubbs]

Hi all,

I had a go at fixing my issue with Plasma buttons not releasing incorrectly. 
The change linked below did partially fix it, but the desktop toolbox buttons 
would stay pressed if the mouse button was released after the toolbox had 
disappeared.

http://websvn.kde.org/trunk/KDE/kdebase/workspace/libs/plasma/widgets/pushbutton.cpp?r1=721138&r2=735135

I ended up reversing the above change so I've attached patches with and 
without the reversal for clarity's sake.

What the patch does:
* Sets the button to the Released state as soon as the mouse leaves the 
button's area, which makes it behave the same as regular buttons.
* Relocates an update() so that painting is only done when necessary.

What the patch does not do:
* Handle the case where a button becomes non-visible while being pressed and 
hovered over. Neither mouseMoveEvent nor mouseReleaseEvent will be called in 
this case.

Regards,
Jason Stubbs
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