Re: [Pydev-code] Best way to set styles for method args after applying a completion proposal

[Mark L. <mid...@ve...>]

I found where PyDev is doing the magic, in 
PyLinkedModeCompletionProposal. I made my own copy of this class, 
modifying the goToLinkedModeFromArgs() method to parse my arg string. It 
has parameter names and values (i.e. somename=someVal), and I want the 
editable fields to be just the param values.

-Mark

On 02/26/2016 12:28 AM, Mark Leone wrote:
> I've implemented some custom code completion with a completion
> participant. When I apply one of the completions, I want to make the
> method arguments easy to edit, the same way that JDT and PyDev do. That
> is, a border style is set for each arg, and the first one is highlighted
> with the carrot positioned at the beginning.
>
> I have this working, but it's clunky. I'm setting styles on the
> StyledText widget for each argument. At first I did it with a
> LineStyleListener, but this blows away PyDev's syntax hightlighting. I
> had hoped that its styling was done with a LineStyleListener, but I see
> that it's not. Therefore I have to set the styles directly. I do that as
> soon as the completion proposal is selected.
>
> However, shortly after I set the styles to highlight the args, a parse
> occurs and my styles are wiped out. I implemented a PostParseListener
> top put them back. That works, but it looks terrible because the styles
> appear, disappear almost immediately, and then re-appear a second or two
> later.
>
> The defaul PyDev completion processor does this smoothly, but I looked
> all through the code and I can't see where it happens. Can someone tell
> me what the right way is to handle what I'm trying to do, or point me to
> the PyDev code that does it so I can follow that example?
>
> -Mark
>
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