Re: [Texmacs-dev] Re: Possible temporary solution to the repaint bug.

[Alvaro Tejero Cantero]

Yes, it improved very much, to the point that it is requires more
extensive testing to determine if it is less smooth than the gold
standard - the X version.

However, a very annoying misbehavior remains: when scrolling out of
any environment, one gets the default focus with the section title
(extremely useful!) included in the iconbar. The problem is that (with
my font size settings) the section title makes that iconbar a few
pixels taller than the environment-specific ones, and this shifts the
whole document up and down as the cursor moves.

The solution would be to inquire what is the vertical space needed by
the section titles with the current QT font setting and make all focus
iconbars that high, independently of whether the small default icons
would have fitted in a lower iconbar.

Thanks for the patch that renders the QT version usable again,

-á.



On Sun, Dec 5, 2010 at 02:08, Gubinelli Massimiliano
<address@hidden> wrote:
> Hi Alvaro,
>  I've tried to improve the situation. Tell me if it works for you.
>
> thanks
> max
>
>
> On 2 déc. 2010, at 20:34, Alvaro Tejero Cantero wrote:
>
>> * The scroll is somewhat slow (I am using Help - The graphical user 
>> interface)
>> ** with the mouse it is slow
>> ** when moving the caret with the keyboard, repaints are triggered --
>> I just discovered that they happen when the cursor changes
>> environment: i.e. going inside verbatim, a section heading, etc.
>> * Partial repaints occur when resizing the window: bits of the upper
>> and lower paragraphs flash for as long as the border of the window is
>> dragged.
>>
>> Maybe the environment-transition repaints have to do with the new
>> (fantastic) contextual menu?
>>
>> If it is of use, I could compile the X version as well for comparison.
>>
>> -á.
>>
>>
>>
>> On Thu, Dec 2, 2010 at 11:05, Gubinelli Massimiliano
>> <address@hidden> wrote:
>>> Hi Alvaro,
>>>
>>> On 1 déc. 10, at 22:49, Alvaro Tejero Cantero wrote:
>>>
>>>> Dear Max,
>>>>
>>>> the problem is gone and one can work very well, although TeXmacs still
>>>> produces some spurious refreshes that were also present before.  But
>>>> that is fine-tuning.
>>>>
>>>
>>> Could you describe better what you mean by "spurious refreshes". I would
>>> like to have this settled once and for all.
>>>
>>> best
>>> max
>>>
>>>
>>>> Thanks,
>>>>
>>>> -á.
>>>>
>>>>
>>>>
>>>> On Wed, Dec 1, 2010 at 16:39, Gubinelli Massimiliano
>>>> <address@hidden> wrote:
>>>>>
>>>>> Thanks to Alvaro and Miguel for studying this issue. I've committed a
>>>>> patch (along the proposed lines). Could you confirm that the problem has
>>>>> disappeared?
>>>>>
>>>>> best
>>>>> max
>>>>>
>>>>>
>>>>>
>>>>> On 27 nov. 2010, at 11:57, Alvaro Tejero Cantero wrote:
>>>>>
>>>>>> Pending more extensive testing, it works! The documents load and
>>>>>> scroll much smoother!
>>>>>>
>>>>>> -á.
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Sat, Nov 27, 2010 at 02:21, Miguel de Benito Delgado
>>>>>> <address@hidden> wrote:
>>>>>>>
>>>>>>> An alternative solution to a possibly unrewarding constant tinkering of
>>>>>>> the
>>>>>>> constant...
>>>>>>>
>>>>>>> Same file, but now in function qt_gui_rep::check_event, Change lines
>>>>>>> 795 and
>>>>>>> 796 to read:
>>>>>>>
>>>>>>> interrupted= (N(waiting_events) > 0);
>>>>>>>
>>>>>>> //interrupted= true;
>>>>>>>
>>>>>>> That is, uncomment the first line, comment the second. And you can
>>>>>>> leave
>>>>>>> the time_credit set to its default value.
>>>>>>> Regards,
>>>>>>> ________________
>>>>>>> Miguel de  Benito.
>>>>>>>
>>>>>>>
>>>>>>> On Sat, Nov 27, 2010 at 00:35, Miguel de Benito Delgado
>>>>>>> <address@hidden> wrote:
>>>>>>>>
>>>>>>>> Hi,
>>>>>>>>  I was trying to post this to the users list but the confirmation of
>>>>>>>> my
>>>>>>>> subscription never came, so I'm sending it here for those who read
>>>>>>>> both
>>>>>>>> lists. You are anyway the only ones likely to try the hack at all so
>>>>>>>> here it
>>>>>>>> goes
>>>>>>>>  There's been some trouble with the repaint bug, and after seeing it
>>>>>>>> myself on Álvaro's computer and reading Sam's reports I noticed that
>>>>>>>> changing a constant in src/Plugins/Qt/qt_gui.cpp, namely time_credit,
>>>>>>>> to one
>>>>>>>> tenth its value, I also experienced the problem when opening large
>>>>>>>> files. So
>>>>>>>> those of you suffering from the bug can try to set it to, say, 1000
>>>>>>>> (ten
>>>>>>>> times its default value) and see if it does the trick. This will
>>>>>>>> probably
>>>>>>>> decrease responsiveness but it's a tradeoff you might be willing to
>>>>>>>> accept
>>>>>>>> until proper fixing is done.
>>>>>>>> Regards,
>>>>>>>> ________________
>>>>>>>> Miguel de  Benito.
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
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>>>>>>>
>>>>>>>
>>>>>>
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