Runtime Font Loading

[lylythechosenone]

Is there an existing issue for this?

• I have searched the existing issues.

Is this issue related to iced?

• My hardware is compatible and my graphics drivers are up-to-date.

What happened?

Fonts require &'static parameters for external fonts. This makes it impossible to load fonts in runtime without running into lifetime issues.

pub enum Font {
    Default,
    External {
        name: &'static str,
        bytes: &'static [u8],
    },
}

What is the expected behavior?

It should be possible to load fonts in runtime. In my case, I am trying to write a rich text editor widget using text::Renderer, but I can't render fonts because the fonts are specific to the document, and can't be loaded in compile-time.

Version

0.3.0

Operative System

macOS

Do you have any log output?

No response

[lylythechosenone]

For the time being, I've resorted to memory leaks.

fn load_font(name: &'static str) -> Result<Self, Self::Err> {
    let font = SystemSource::new()
        .select_by_postscript_name(name)
        .unwrap()
        .load()?;
    let bytes = font.copy_font_data().unwrap();
    let bytes = (*bytes).clone();
    let bytes = bytes.leak();
    Ok(Self::External { name, bytes })
}