"Real-time" charting

[Joaquín Ignacio Aramendía <samsagax gmail com>]

I would like to use gtkdatabox for some sort of "real time" charting of 
dots. The idea consists in using a GArray that can grow in size with 
g_array_append_val or the function g_array_append_vals.

The workflow would be simple by adding a "push_xy" method to 
GtkDataboxGraph (or maybe their children):

- adds a value to two GArray's (one for X-vals other for Y-vals).
- redraw the GtkDataboxGraph.
- send a signal to the GtkDatabox to be redrawn.

Could this be possible? Of course i'm skipping some checks but should be 
simple enought to code provided the major (maybe not?) chage is made to 
use GArray of gfloat (gdouble) instead of plain gfloat array.

cya!

Samsagax