TODO

[ ] Create a user manual.
[ ] Generate a .deb package.
[ ] Add option to run after setup.
[ ] Add option to associate files on setup.
[ ] Disable menus when all submenus are disabled (except root ones).
[ ] Remove repeated code and create functions.
[ ] Iconize all menu items with xpm.
[ ] Create a preview window to show how the generated file will be.
[ ] Remove some scale and rotation menus and let the user choose the value.
[ ] Detect up-scale offer to resize the output optionally.
[ ] Create an about dialog to show colaborators.
[ ] Increase the plaback speed button width.
[ ] Add support to aligment operations (makes the selected box fit horizontally, fit vertically and other operations)
[ ] When drag a file to the main window, try to open it. (if fltk supports)