Here you see libgtkflow, a universal library for drawing flow graphs with Gtk+ 3.
A more recent screenshot showing off libgtkflow with Gtk > 3.20. It looks a bit clearer.
This is libgtkflow running inside firefox via broadway ↑
GtkFlow runs unter that strange M$-operating-system, too ↑
The newest stuff in libgtkflow's development ↑ Nodes can be deleted by clicking the X-button in the upper right corner. Nodes are resizable by drag-n-dropping the lower right corner. The types of the docks can be printed along with their names
This is a screenshot of libgtkflow rendered with the evopop Gtk3 theme ↑
This here is the included advanced calculator demo application ↑
Flow graphs are a possibility to let your user model flows of data from, through and into several stations.
I love Flowgraphs in other programs and i want to have them in my favourite UI-toolkit Gtk. I ran into some programs which implemented similar functionality but they all didn't feel or even lokk very Gtk-like/GNOMEy.
Specific:
- Writing a UI for GStreamer
- Writing a UI for Beehive
- Replacement for the UI in Gnuradio
- Matching monitors / inputs / outputs in Pavucontrol
- Writing a UI for GEGL
Unspecific:
-
Video Compositing (maybe PiTiVi)
-
Visualizing dependencies of objects (e.g. debian packages in apt)
-
… and whatever you can think up.
Consider the API unstable for now. You will encounter bugs.
Make sure you get the following Dependencies:
- libgtk-3-dev
- gobject-introspection
- meson
- vala
- (valadoc)
Then do the following:
$ git clone https://github.com/grindhold/libgtkflow
$ cd libgtkflow
$ mkdir build
$ cd build
$ meson ..
$ ninja
# sudo ninja install
libgtkflow supports GObject-Introspection which means you can consume it in various popular languages including but not limited to: Python, Perl, Lua, JS, PHP. I compiled some examples on how to program against the library in Python in the examples-folder.
Feel free to add examples for your favorite language.
Note: If you installed the library in /usr/local, you have to export the following environment variables for the examples to work:
$ export LD_LIBRARY_PATH=/usr/local/lib/x86_64-linux-gnu
$ export GI_TYPELIB_PATH=/usr/local/lib/x86_64-linux-gnu/girepository-1.0/
Please be aware that on other architectures than amd64 you will have to change the
multiarch string x86_64-linux-gnu
to something else that makes sense on your
machine.