Rust Programming By Example

Dialogs

For the open and save dialog, we'll use the same functions as in the previous chapter:

use std::path::PathBuf;

use gtk::{FileChooserAction, FileChooserDialog, FileFilter};
use gtk_sys::{GTK_RESPONSE_ACCEPT, GTK_RESPONSE_CANCEL};

const RESPONSE_ACCEPT: i32 = GTK_RESPONSE_ACCEPT as i32;
const RESPONSE_CANCEL: i32 = GTK_RESPONSE_CANCEL as i32;

fn show_open_dialog(parent: &Window) -> Option<PathBuf> {
    let mut file = None;
    let dialog = FileChooserDialog::new(Some("Select an MP3 audio file"),     Some(parent), FileChooserAction::Open);

    let mp3_filter = FileFilter::new();
    mp3_filter.add_mime_type("audio/mp3");
    mp3_filter.set_name("MP3 audio file");
    dialog.add_filter(&mp3_filter);

    let m3u_filter = FileFilter::new(); m3u_filter.add_mime_type( ...