Re: GUI font and cursor location

[Mike Miller]

On Sat, Jul 28, 2012 at 9:07 AM, Doug Stewart wrote:
>
>
> On Sat, Jul 28, 2012 at 6:16 AM, Doug Stewart <address@hidden> wrote:
>>
>>
>>
>> On Sat, Jul 28, 2012 at 5:26 AM, Michael Goffioul
>> <address@hidden> wrote:
>>>
>>> On Sat, Jul 28, 2012 at 10:05 AM, Jacob Dawid <address@hidden>
>>> wrote:
>>>>
>>>> Michael,
>>>>
>>>>
>>>>>
>>>>> The fact that _fontWidth and fw are different is due to the fact that
>>>>> you're using a non-monospace font (otherwise they would be equal).
>>>>> Non-monospace fonts are not suited for rendering in a terminal.
>>>>>
>>>>> Michael.
>>>>
>>>>
>>>> that's not true. The problems occur with monospaced fonts. There
>>>> actually was a bug with computing the right cell size, as you mentioned, an
>>>> Jen fixed it.
>>>
>>>
>>> Obviously, my above statement implicitly assumed you're doing the
>>> computation right (in which case I believe _fontWidth == fw for a monospace
>>> font). But this doesn't change my impression that _fontWidth and _fontHeight
>>> must be integers.
>>>
>>> Michael.
>>>
>>
>> Michael, Hi
>>
>>   We have a simple fix and will send it soon.  We only were testing and
>> working in Ubuntu so I am not sure what is happening (or will happen) in
>> windows
>>
>> The problem is very demonstrate-able by running the qterminal by itself
>> and using different default font sizes. Then fill one line of the qteminal
>> display screen with characters, and watch the cursor location and character
>> locations as you use the left and right arrow keys to move back and forth on
>> the line.
>>
>> Doug
>>
>> --
>> DAS
>>
>> https://linuxcounter.net/user/206392.html
>
>
> OK here is the GIT patch see attached file.

Applied here and definitely much improved for me. I still see a little
bit of movement though. I've tried a handful of mono fonts at
different sizes and there is still a tiny amount of wiggle when moving
the cursor across the line. Maybe down to a one-pixel error at this
point though.

-- 
mike