Trait i_slint_core::backend::Backend

pub trait Backend: Send + Sync {
    fn create_window(&'static self) -> Rc<Window>;
    fn run_event_loop(&'static self, behavior: EventLoopQuitBehavior);
    fn quit_event_loop(&'static self);
    fn register_font_from_memory(
        &'static self,
        data: &'static [u8]
    ) -> Result<(), Box<dyn Error>>;
    fn register_font_from_path(
        &'static self,
        path: &Path
    ) -> Result<(), Box<dyn Error>>;
    fn set_clipboard_text(&'static self, text: String);
    fn clipboard_text(&'static self) -> Option<String>;
    fn post_event(&'static self, event: Box<dyn FnOnce() + Send>);
    fn image_size(&'static self, image: &Image) -> IntSize;

    fn register_bitmap_font(&'static self, _font_data: &'static BitmapFont) { ... }
    fn duration_since_start(&'static self) -> Duration { ... }
}

Interface implemented by back-ends

Required Methods

fn create_window(&'static self) -> Rc<Window>

Instantiate a window for a component. FIXME: should return a Box

fn run_event_loop(&'static self, behavior: EventLoopQuitBehavior)

Spins an event loop and renders the visible windows.

fn quit_event_loop(&'static self)

Exits the event loop.

fn register_font_from_memory(
    &'static self,
    data: &'static [u8]
) -> Result<(), Box<dyn Error>>

This function can be used to register a custom TrueType font with Slint, for use with the font-family property. The provided slice must be a valid TrueType font.

fn register_font_from_path(
    &'static self,
    path: &Path
) -> Result<(), Box<dyn Error>>

This function can be used to register a custom TrueType font with Slint, for use with the font-family property. The provided path must refer to a valid TrueType font.

fn set_clipboard_text(&'static self, text: String)

fn clipboard_text(&'static self) -> Option<String>

fn post_event(&'static self, event: Box<dyn FnOnce() + Send>)

Send an user event to from another thread that should be run in the GUI event loop

fn image_size(&'static self, image: &Image) -> IntSize

Provided Methods

fn register_bitmap_font(&'static self, _font_data: &'static BitmapFont)

fn duration_since_start(&'static self) -> Duration

Implementors