Re: grid

[Damon Chaplin <damon karuna eclipse co uk>]

On Tue, 2008-09-16 at 21:25 +0300, z pekar gmail com wrote:
> On Mon, Sep 15, 2008 at 11:56 AM, Damon Chaplin
> <damon karuna eclipse co uk> wrote:
> >
> > On Thu, 2008-09-11 at 17:45 +0200, Murray Cumming wrote:
> >> On Thu, 2008-09-11 at 17:35 +0300, z pekar gmail com wrote:
> >> > Hi,
> >> > I have a GooCanvasImage with GooCanvasEllipse being added and removed
> >> > from it. I need to place a grid on all this stuff in order to make
> >> > placing of GooCanvasEllipse upon the image more accurate. What is the
> >> > best way to do it? - draw it with paths or maybe use tables somehow?
> >> > thank you
> >> > Z. Pekar
> >>
> >> I did this with lines.
> >>
> >> Using C++ (and some awkward multiple inheritance) I created a whole
> >> heirarchy of canvas items that can snap to the grid, or to rules. That's
> >> in Glom. for its (unfinished) print layouts. If you are using C then
> >> it's probably not that useful to you, but maybe it helps to know that
> >> somebody else has done this.
> >>
> >> I think this kind of high-level functionality should be in a library
> >> really.
> >
> > I think it might be difficult to come up with an API that everyone is
> > happy with - it could be a bit too application-specific.
> so maybe to find some common denominator and leave the rest to the programmer.
> 
> 
> > Though demo code would be useful, or items that can be easily subclassed
> > so they can be customized to suit a particular application.
> does this mean we have a hope(i.e. you'll give it a try)?

I might do a simple grid item, but probably not much more. But someone
else might have a go.

If people listed their particular requirements that might help. I don't
really have a clear idea of what people need.

Damon