Re: Gtk::Fixed or Gtk::DrawingArea(Porting DBDesigner to c++ & gtkmm)

[Roger Leigh <rleigh whinlatter ukfsn org>]

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Bart Verstraete <bartverstraete telenet be> writes:

[Please do trim extraneous lines when replying]

> Roger Leigh wrote:
>     For the main display area, a GnomeCanvas would be a good solution.
>     You can create the tables from a derived GnomeCanvasGroup, and the
>     same for the connections and labels.  For the palettes and lists on
>     the right, GtkTreeView will do the job.

> Could u give samplecode for the tables, because that I not realy understood.
> I am already expirementing with the canvas, murray said that too on irc

I'm afraid not.  I've only used the canvas in plain C, not C++.

It's very similar to a vector drawing program in that you have basic
drawing primitives (lines, circles, boxes, curves, text, images etc.)
which can be grouped to make "compound" elements.  Your table item
will be a compound element (derived from GnomeCanvasGroup), and this
will contain GnomeCanvasText items plus other drawing elements
e.g. lines to make it pretty.  You can handle moving, resizing,
drag/drop etc. in this item object.

This should be useful:
http://developer.gnome.org/doc/books/WGA/gnome-canvas.html

Try doing something simple to start with, like just a coloured box or
text.


Regards,
Roger

- -- 
Roger Leigh
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