Rust Programming By Example

Displaying the cover when playing a song

The other feature to add is to show a bigger cover when we click the play button. We'll start by adding a function to get the image from the selection in the playlist:

    pub fn pixbuf(&self) -> Option<Pixbuf> {
        let selection = self.treeview.get_selection();
        if let Some((_, iter)) = selection.get_selected() {
            let value = self.model.get_value(&iter, PIXBUF_COLUMN as i32);
            return value.get::<Pixbuf>();
        }
        None
    }

This method to be added to the Playlist structure starts by getting the selection; if there's one, it simply gets the pixbuf from the model and returns it. Otherwise, it returns None.

We can now write a function that will fetch the cover from the playlist and show the image:

use gtk::Image;

use ...