Disclaimer: I am new to GTK programming. I'm looking for a widget which can display an oscilloscope-like display: that is, a drawable surface with an overlaid graticule of horizontal and vertical lines, plus zero or more traces consisting of a set of connected line segments defined by an array of (x,y) pairs. Ideally other "things" should be drawable to the surface (e.g. limit lines, markers, annotating text, filled polygons (limit masks)).
The GTK "curve" object looks pretty close to what I need, but it is marked as deprecated. (I'm about to use bad language here, be forewarned): the license is important, as this will be going into code that is, unfortunately, proprietary - as such GPL is out, but LGPL is acceptable. It seems to me that a graphing widget (which is really what I need) ought to be something of common enough interest to be available, but I've not been able to find one. Failing the availability of such a beast, I'll have to write one (which I would try to get licensed under LGPL - I don't think my bosses would have a problem with that). If that happens, does anybody have any good pointers for writing an efficient line-drawing widget (e.g. should I draw the graticule once to an offscreen bitmap and then blit that to the drawable when I refresh, or would it be faster to keep the graticule as a set of pre-defined line segments and just redraw them each refresh)? Does anybody else have need for such a thing and suggestions on what they'd like to see? _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
