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Re: Jumpy canvas on other platforms?

 

Thanks, everyone.  I think it’s more sensitive to a trackpad than mouse, but I merged a fix yesterday anyway.

> On 5 Mar 2018, at 16:41, Wayne Stambaugh <stambaughw@xxxxxxxxx> wrote:
> 
> I see it now.  I was moving the cursor too fast.  You have to move it
> very slowly to see the issue.  Hmm, never noticed that before.
> 
> On 3/5/2018 11:39 AM, Andrey Kuznetsov wrote:
>> I notice the jerkiness on WIndows!
>> 
>> When you start panning, very slowly, by a little bit, there is a period
>> when it looks like the view window tries to center itself, so it jumps
>> back and forth between where it used to be and where the mouse is going,
>> until it's far enough and it snaps out of it and at the same time the
>> scroll bars appear.
>> 
>> On Mon, Mar 5, 2018 at 5:54 AM, Wayne Stambaugh <stambaughw@xxxxxxxxx
>> <mailto:stambaughw@xxxxxxxxx>> wrote:
>> 
>>    I'm not seeing this on my windows 7 builds.  The panning after zoom
>>    extents works smoothly.  I even tried resizing the main frame several
>>    times but I still didn't notice it.
>> 
>>    On 3/4/2018 5:00 PM, Jeff Young wrote:
>>> There is actually code in there to make them always on, but there seems
>>> to be something defeating it.  I’ll poke around some more.
>>> 
>>>> On 4 Mar 2018, at 21:57, Jon Evans <jon@xxxxxxxxxxxxx <mailto:jon@xxxxxxxxxxxxx>
>>>> <mailto:jon@xxxxxxxxxxxxx <mailto:jon@xxxxxxxxxxxxx>>> wrote:
>>>> 
>>>> Ah yes, I can reproduce that on Windows too.  I guess I didn't notice
>>>> before because generally the scrollbars are visible (I noticed that
>>>> "zoom extents" doesnt *always* result in the scrollbars being hidden,
>>>> for whatever reason)
>>>> Any reason why we hide the scrollbars?  Seems like it might be simpler
>>>> to just always show them...
>>>> -Jon
>>>> 
>>>> On Sun, Mar 4, 2018 at 4:52 PM, Bernhard Stegmaier
>>>> <stegmaier@xxxxxxxxxxxxx <mailto:stegmaier@xxxxxxxxxxxxx>
>>    <mailto:stegmaier@xxxxxxxxxxxxx <mailto:stegmaier@xxxxxxxxxxxxx>>>
>>    wrote:
>>>> 
>>>>      Do a “fit to window” and then pan left/right… I use the touchpad.
>>>>      After “fit to window” there is no scrollbar.
>>>>      When the scrollbar comes back due to panning, I see almost always
>>>>      a small shift of the whole view down and then up again.
>>>>      Sometimes, but not always if you just pan left/right it will make
>>>>      this small jump downwards every time you cross center, just as if
>>>>      it would “snap" to middle position.
>>>> 
>>>> 
>>>>>      On 4. Mar 2018, at 21:25, Jon Evans <jon@xxxxxxxxxxxxx <mailto:jon@xxxxxxxxxxxxx>
>>>>>      <mailto:jon@xxxxxxxxxxxxx <mailto:jon@xxxxxxxxxxxxx>>> wrote:
>>>>> 
>>>>>      Maybe I don't really understand what you mean, but I can't see
>>>>>      any jumpiness on Linux when panning around (with middle-mouse drag).
>>>>>      What do you mean by "it automatically fits to window, so there's
>>>>>      not really any place to go"?  It does not do any kind of
>>>>>      auto-fitting except for the zoom-extents on file load on Linux,
>>>>>      and I don't have my Mac machine handy to compare.
>>>>> 
>>>>>      On Sun, Mar 4, 2018 at 3:11 PM, Jeff Young <jeff@xxxxxxxxx <mailto:jeff@xxxxxxxxx>
>>>>>      <mailto:jeff@xxxxxxxxx <mailto:jeff@xxxxxxxxx>>> wrote:
>>>>> 
>>>>>          If I open an eeschema file on OSX and pan around (it
>>>>>          automatically fits to window, so there’s not really any place
>>>>>          to go), the screen jumps around a bit.  True also on other
>>>>>          platforms, or Mac-specific?
>>>>> 
>>>>>          Thanks,
>>>>>          Jeff.
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>>>> 
>>> 
>>> 
>>> 
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>> 
>> 
>> -- 
>> Remember The Past, Live The Present, Change The Future
>> Those who look only to the past or the present are certain to miss the
>> future [JFK]
>> 
>> kandrey89@xxxxxxxxx <mailto:kandrey89@xxxxxxxxx>
>> Live Long and Prosper,
>> Andrey
> 
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