Question

i am writing (using C++ and GTKmm) a simple photo browser that is available on GitHub:

https://github.com/jjkrol/ZPR

Currently i am working on creating a button, which will allow user to open currently displayed photo in external editor (for example GIMP). Because of this, i have two questions:

• Are there any examples of using Gtk::AppChooserDialog class? I couldn’t find any and it’s hard to start working on choosing the editor without them.

• Most important question – i am thinking about a way to launch an application with photo in command line. The only solution that comes to my mind is using system() call to do something like this: system(“gimp /path/to/current/photo.jpg”); , but it is probably not the best way of doing this. Anybody knows a better way? I would like to port my application to Windows someday and a more portable way would be great.

Thank you very much in advance.

Answer 1

Thank you very much for answers, gpoo and ergosys! In the end i decided to use Gio::Appinfo as it looks more OOP-like. If anyone would face the same problem – this is what i have end up with:

Glib::RefPtr<Gio::AppInfo> editor = Gio::AppInfo::create_from_commandline("gimp", 
                                    "GIMP", Gio::APP_INFO_CREATE_SUPPORTS_URIS);
Glib::RefPtr<Gio::File> photo = Gio::File::create_for_path(
                                (*currentPhoto)->getPath().string());  
editor->launch(photo);

Of course choosing the editor with Gtk::AppChooserDialog is not yet implemented.