[Gambas-user] Re: TextArea Line Numbering And Syntax High lighting?

[Steve Starr]

Hmm thanks for the reply but i think i will wait untill gambas2 is
stable enough for production work and that goes the same for syntax &
highlighting and line numbering.

Ill just work on fixeing bugs and stuff with my html editor.

Thanks :)

On 8/18/05, Rob <sourceforge-raindog2 at ...94...> wrote:
> On Wednesday 17 August 2005 15:14, Steve Starr wrote:
> > Things are crashing like when i try to use the new wizard feature
> > etc. Now i am useing Kde 3.4.1 and  Qt 3.3.4 do i need to upgrade
> > Qt to 4.0 to get gambas 1.9.16 more stable than what it is?
> 
> No, I'm not even sure gambas will compile under qt4 yet.  The 1.9 
> series is pretty unstable and I wouldn't suggest using it for any 
> important projects yet.... but if you would post detailing all the 
> crashes you got so we can try to duplicate and then eliminate them, 
> that would be awesome.
> 
> The client I'm visiting today actually wrote a COBOL editor in Gambas 
> (reimplemented from scratch based on an old VB app) and we did line 
> highlighting by making arrays of text boxes, 3 for each row (the 
> COBOL they use has three fields in each line) and 24 rows per screen 
> (adjustable in software, but they wanted to keep it similar to what 
> they had.) Scroll bars, multi-line selections, the whole nine yards. 
> (As it happens, the Gambas program is on the order of 5-10 times 
> faster than the VB program it replaced despite all that tricky 
> coding, so there isn't much of a performance hit.)
> 
> I hope in the future I can get them to reimplement it using the Gambas 
> editor control in Gambas 2.x, but until it's stable the best solution 
> might be the array of text boxes, each row being the line number 
> followed by the code for that line. You'll need to do some STOP EVENT 
> stuff in the keypress event handler so that when the user presses the 
> up arrow your program moves to the previous line rather than one 
> character back in the current one.
> 
> Unfortunately, that wouldn't give you syntax highlighting, just line 
> highlighting.  So you still may need to implement each line as a 
> TextLabel, storing the lines of code themselves in a separate array 
> offscreen, and whenever they cursor down to that line, pop up a 
> TextBox on top of the label and let them edit the line (without 
> highlighting, alas, but I've seen a lot of editors that work that way 
> including VB's.)
> 
> I'm actually not sure how you'd do this with VB's rich text control 
> either, so I don't feel that bad about it.
> 
> Rob
> 
> 
> 
> 
> 
> 
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