[Lazarus] About 0013268: SynEdit parses every line twice on load or paste (Attn: Flávio)

[Martin Friebe]

Flávio Etrusco wrote:
> On Wed, Mar 4, 2009 at 11:27 AM, Martin Friebe <lazarus at mfriebe.de> wrote:
>   
>> Hi,
>>
>> To take the discussion of the bug tracker.
>>
>> My current intention on this issue would be to solve the additional
>> issues, such as double scan on Paste, or ensuring LoadFromFile only does
>> a single scan for all lines in one go)
>>
>> This would mean the only Problem remaining is:
>> If a user writes his own code, calling Lines.Add (or even Lines.Insert)
>> in a loop. And does so without calling Lines.BeginUpdate before.
>>
>> While I admit that such a behaviour would add a lot of calculation
>> overhead, with the current SynEdit implementation, I would also see it
>> partly as a user error, since other Components also provide BeginUpdate
>> or similar Methods.
>> Still it should be fixed.
>> But other changes could affect it (scan only on demand), and the amount
>> of work, and the risk of breaking thinks are IMHO outweighing the
>> current benefits.
>>
>> So once the above is closed, I would target that as "post 1.2" (simply
>> meaning whenever some one has time to do it)
>>
>> Or do you think think this should be handled as a more severe issue?
>>
>> Best Regards
>> Martin
>>     
> Calling BeginUpdate is not enough, they must disable/unset the
> highlighter to avoid the double parse.
>
>   
As I said, I need to check, if BeginUpdate currently works(I haven't 
verified, so I don't know if it does). Until that is done the bug stays 
as it is.

*If* BeginUpdate works, then the content of my original mail should be 
applicable.

Best Regards
Martin