[gtkada] Canvas Item Record

[Emmanuel Briot]

"Clark, G L" <g.l.clark at lmco.com> writes:

>     I have several types of canvas_item_records,  an arc, a rectangle, and
> an alphanumeric.  They each are derived from canvas_iterm_record and each
> have an overloaded Draw function.  In each draw function I use methods from
> Gtk_Drawable to create the appropriate pixmaps.  'Draw_Rectangle,  Draw_Arc,
> Draw_Text.
>     I then create an item of each type and 'Put' them onto the Canvas.  As
> expected a can drag around the rectangle pixmap and the Arc pixmap.
> However, I can't drag around the Text on the Canvas.  Is this expected
> behavior or am I doing something wrong?

I don't think this is an expected behavior, but it would be nice to have some
source code to check what you are doing. You might want to create a
double-buffer item, with its own pixmap (sorry, I don't remember exactly if
this was already doable with the last public release of GtkAda, or if this was
only added in the development version since then).


>    I think this post is appropriate for this group because of differences
> between the Gnome Canvas widget and the one provided with GtkAda.

Indeed, the GtkAda canvas is specific to GtkAda, and doesn't exist with
gtk+. The Gnome canvas hasn't been fully bound yet.

regards,
Emmanuel