Re: connect mouse event handler to a goffice chart

[Jean Brefort <jean brefort normalesup org>]

Hi,

You can use any mouse event.
You can find samples in:
* https://git.gnome.org/browse/goffice/tree/goffice/canvas/goc-graph.c
lines 214 to 412
* 
http://svn.savannah.nongnu.org/viewvc/trunk/gchemutils/programs/spectra/window.cc?annotate=1718&root=gchemutils
starting on line 152

Hope this helps,
Jean

Le mercredi 09 juillet 2014 à 13:57 +0200, Szabolcs Nováczki a écrit :
> Hi,
>
>
> I am developing a GTK3 application where i use some goffice chart
> widgets to plot data. I would like to connect some mouse events to
> these widgets. My question is whether it is possible to connect
> signals to the top level gtk widget or i can connect signals to chart
> elements too? For example, if i have a bar chart and move the mouse
> over a bar a tooltip pops up and shows the value associated to the
> bar. What type of signal is emitted in this case (what type of signals
> are available for goffice chars in general)? I would appreciate an
> short example. Thanks in advance.
>
>
> Br,
> Szabolcs
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