Re: Bug: jumping stack windows (when supress messages is off)

Tue, 13 Oct 2020 04:45:39 -0700 

Sure Mark. This week I’m doing a sprint on this topic - finishing on Sunday. As 
part of that work I’ll be recording more videos in Livecode and will post them 
next week together with some documentation. If you want a quick touch base 
before that I’d be happy to do a Zoom and do a show / tell.
On 11 Oct 2020, 11:37 +0100, Mark Smith <[email protected]>, wrote:
> Completely off-topic, but could you post a brief description of how you made 
> that video David (or send me a PM)? I have to do something similar in the 
> near future and it would be good to know what kit/software you recorded with.
>
> Cheers and thanks,
> Mark
>
> > On Oct 9, 2020, at 3:18 PM, David Bovill via use-livecode 
> > <[email protected]> wrote:
> >
> > Here is a video describing the bug - or at least I am assuming it is a bug. 
> > Very curious to see if anyone else is experiencing this issue:
> >
> > • https://vimeo.com/466580164
> >
> > On 9 Oct 2020, 14:48 +0100, David Bovill <[email protected]>, wrote:
> > > I’m getting pretty curious about this bug :)
> > >
> > > Testing mouse clicks- and not stacks jumping position when moving their 
> > > location - I find that a stack that is successfully moved between the 
> > > four quadrants of the screen - accepts mouse clicks accurately in the 
> > > bottom-left, top-right and bottom right quadrants - but in the top-eft 
> > > quadrant the mouse-click interactions are offset vertically in a way that 
> > > is compatible with the stack jump. So if you manage to locate the. Stack 
> > > without it jumping - in the top-left quadrant the mouse clicks are off.
> > >
> > > Monitor settings are set for default value of the MacBook Pro display. I 
> > > think I’ll make a short video of this behaviour.
> > > On 9 Oct 2020, 14:35 +0100, David Bovill <[email protected]>, wrote:
> > > > Also tested on Livecode 8.1.5 with same results.
> > > > On 9 Oct 2020, 14:00 +0100, David Bovill <[email protected]>, 
> > > > wrote:
> > > > >
> > > > > Windows intermittently jump to a location on the screen when I move 
> > > > > windows. It’s got too annoying to ignore.
> > > > >
> > > > > • Is anyone else having this problem?
> > > > >
> > > > > I am testing this on Mojave and Livecode 9.6.1 rc2. I am testing this 
> > > > > without any of my own code such just was IDE stacks. This I “think” 
> > > > > is quite a long standing bug that I suspect is related to the global 
> > > > > coordinate system as I have been working around this for quite a 
> > > > > while now.
> > > > >
> > > > >
> > > > > Detail
> > > > > The location of the jump seems to be the same horizontal x location. 
> > > > > But with the vertical value being reset to the halfway point.
> > > > >
> > > > > I am testing by. Simply moving the message box. It is intermittent - 
> > > > > so occurring about once every 5 moves, and strangely is happening 
> > > > > only when the top left of the stack window is within the top left 
> > > > > quadrant of the screen. Using. The following code int eh message box 
> > > > > I find the top of the message box stack is always 492 after a jump 
> > > > > (see below). This appears to be related to half the screen less the 
> > > > > decorations like menu?
> > > > > put the screenrect & CR & the rect of stack” Message box"
> > > > >
> > > > > 0,0,1680,1050
> > > > > 215,492,634,640
> > > > >
> > > > > As a further indication that the problem is due to the IDE, I find 
> > > > > that creating a test stack (no scripts or controls) exhibits the same 
> > > > > behaviour - but this behaviour can be suppressed by choosing 
> > > > > “Suppress Messages” from the “Development” menu. This suppression has 
> > > > > no effect on the message box or other IDE windows which still jump 
> > > > > intermittently.
> > > > >
> > > > > The problem is most intense when working with multiple screens. For 
> > > > > at least a couple of years stacks I create and place on second or 
> > > > > third monitors receive mouse clicks in the wrong location. This 
> > > > > happens on different machines, and different. Monitor setups. Only 
> > > > > tested on Macs.
> > > > >
> > > > > I am currently creating a multiscreen app - so taking the tracking 
> > > > > down. Of this bug more seriously. The current tests are one on my 
> > > > > laptop without external monitors, and having restarted the computer 
> > > > > (several times). Applications other than Livecode don’t suffer this 
> > > > > problem.
> > > > >
> > > > > How should I report this bug - should I submit a video / screen 
> > > > > recording?
> > > > >
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