align field scrolls

[Paul Dupuis]

You need 3 controls: 2 fields with the vertical scrollbars turned off
and a vertical scroller
<field X><field Y><scrollbar>

Set the min of the vertical scrollbar to 0 and the max to the "max(the
formattedHeight of field X,formattedHeight of field Y)

In the scrollbar, add the script:

on scrollbarDrag newPosition
  set the vScroll of field X to newPosition
  set the vScroll of field Y to newPosition
end scrollbarDrag


On 3/6/2017 9:39 AM, Rick Harrison via use-livecode wrote:
> Hi Nicolas,
>
> Does the number of lines increase or decrease between executions?
>
> Have you tried to add or subtract a constant to adjust for the difference?
>
> Rick
>
>> On Mar 5, 2017, at 9:45 PM, Nicolas Cueto via use-livecode <use-livecode at lists.runrev.com> wrote:
>>
>>> Provided both fields have the same number of lines...
>>
>> ​I should've added that the fields do not contain the same number of
>> lines.  They are identical, though, in size and text properties.
>>
>> Thanks, Paul.
>>
>> --
>> Nicolas Cueto
>>
>>
>> On 6 March 2017 at 11:26, Paul Hibbert via use-livecode <
>> use-livecode at lists.runrev.com> wrote:
>>
>>> I have a stack that does a similar thing, but with numbers and I just use
>>> the following script in the main field;
>>>
>>> on scrollBarDrag pScroll
>>>   set the vScroll of fld  “lineNumbers" to pScroll
>>>
>>> end scrollBarDrag
>>>
>>> Provided both fields have the same number of lines and the text properties
>>> are identical they should stay aligned correctly.
>>>
>>> Or a simpler version would be;
>>> set the vScroll of fld 2 to the vScroll of fld 1
>>>
>>> Paul
>>>
>>>
>>>
>>>> On Mar 5, 2017, at 6:00 PM, Nicolas Cueto via use-livecode <
>>> use-livecode at lists.runrev.com> wrote:
>>>> Hi.
>>>>
>>>> The part I've got working...
>>>>
>>>> Two clickable scrolling fields (fld1, fld2), same height and width.
>>> Click a
>>>> fld1 line and fld2 SCROLLs and HILITEDLINEs to visually reveal a matching
>>>> line. (fld1 is French text, fld2 is an English gloss.)
>>>>
>>>> The part I would welcome your help with...
>>>>
>>>> If, say, the hilited line on fld1 is kinda halfway down, how do I get the
>>>> hilited line on fld2 to also be kinda halfway down?
>>>>
>>>> Here's my scrolling-magic script:
>>>>
>>>> set the scroll of fld2 to (tMatchingLineNr - 1) * \
>>>>   the textHeight of fld2 - the textHeight of fld2
>>>> set the hilitedline of fld2 to tMatchingLineNr
>>>>
>>>> Of course, this ends up with the hilited line of fld2 being at the top.
>>>> How do I get it to scroll just that little bit more so that it aligns
>>> with
>>>> the hilited line as seen in fld1?
>>>>
>>>>
>>>> Thank you.
>>>>
>>>> --
>>>> Nicolas Cueto
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