Emacs doxy-graph minor mode

doxy-graph-mode links source code to doxygen call graphs.

It allows to interactively see the call graph or the inverted call graph of a given function or method from source code.

Requirements

• emacs 26.3 (or newer).
• doxygen 1.8.13 (or newer).

Basic Setup

After getting doxy-graph-mode.el you can add some of this lines to your .emacs file if you want that doxy-graph-mode auto-loads when c-mode, c++-mode or python-mode are enabled.

(require 'doxy-graph-mode)

(add-hook 'c-mode-hook 'doxy-graph-mode)
(add-hook 'c++-mode-hook 'doxy-graph-mode)
(add-hook 'python-mode-hook 'doxy-graph-mode)

You can add a hook for another one of the languages supported by doxygen.

Usage

Firts of all you have to generate doxygen latex documentation including call graphs. To carry out this you can generate a Doxyfile config file with the command doxygen -g in your source code path.

It is necessary to change the following settings inside Doxyfile.

CALL_GRAPH             = YES

CALLER_GRAPH           = YES

An example of Doxyfile is given in this repository.

You can invoque doxy-graph-mode commad M x doxy-graph-mode.

When mini mode is active you can position the cursor over function name and visualize call graph and inverted call graph.

Default keybindings are:

• <C-f1> Opens direct call graph.
• <C-f2> Opens inverted call graph.

First time is called doxy-graph-open-call-graph or doxy-graph-open-inverted-call-graph it is asked for select doxygen latex folder. You can choose doxygen latex folder using the directory chooser.

Calling the interactive function doxy-graph-set-latex-path you can change the folder where doxygen latex docs are placed.

If you wish you can change default keybindings using doxy-graph-mode-map. The following example binds C c c and C c i like default shortcuts.

(define-key doxy-graph-mode-map (kbd "C-c c") 'doxy-graph-open-call-graph)
(define-key doxy-graph-mode-map (kbd "C-c i") 'doxy-graph-open-inverted-call-graph)