FlowCanvas is an interactive Gtkmm/Gnomecanvasmm widget for “boxes and lines” style
environments (e.g. modular synths or interactive finite state automata diagrams).
It is used by Ingen, Patchage, and Machina
Screenshots
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The latest version of FlowCanvas is 0.7.1, released on January 11, 2011.
Please support FlowCanvas development:
Documentation
HTML Documentation can be built from the source distribution using ./waf configure –docs, or you can browse documentation online
Bugs
Please file any bugs you find here




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It’s planned to port this great component to Gtk 3 and Goocanvas?, i forked via github and i’m trying to port it to these frameworks but has some issues because are Gnomecanvas an Goocanvas are very different, in things like classes and names.
Thanks.
No. FlowCanvas’s successor, Ganv, is implemented in straight Cairo. I got tired of waiting years for the Gnome camp to actually pick a canvas. Since basically all audio things are still Gtk2 for various reasons, Ganv is as well, and probably will remain so for some time.
Oh well, bad luck, but exists an similar widget for Gtkmm 3?.
Thanks.
Sorry, not as far as I know.