Method submit

perro_source/render_stack/perro_graphics/src/ui/renderer.rs:148–428

(&mut self, command: UiCommand)

    NineSlice(UiNineSliceDraw),
    Label(UiLabelDraw),
    TextEdit(UiTextEditDraw),
}

pub struct UiRenderer {
    nodes: AHashMap<NodeID, UiDraw>,
    revision: u64,
    painter: EpaintUiPainter,
    static_font_lookup: Option<crate::StaticFontLookup>,
    default_font: perro_ui::UiFont,
    // Path hashes already handed to the painter; labels re-submit every
    // change, so gate here keeps registration off the per-frame path.
    registered_resource_fonts: ahash::AHashSet<u64>,
}

impl Default for UiRenderer {
    fn default() -> Self {
        Self::new()
    }
}

impl UiRenderer {
    pub fn new() -> Self {
        Self {
            nodes: AHashMap::new(),
            revision: 0,
            painter: EpaintUiPainter::new(),
            static_font_lookup: None,
            default_font: perro_ui::UiFont::Default,
            registered_resource_fonts: ahash::AHashSet::new(),
        }
    }

    pub fn submit(&mut self, mut command: UiCommand) {
        match &mut command {
            UiCommand::UpsertLabel { font, .. } | UiCommand::UpsertTextEdit { font, .. }
                if matches!(font, perro_ui::UiFont::Default) =>
            {
                *font = self.default_font.clone();
            }
            _ => {}
        }
        match &command {
            UiCommand::UpsertLabel {
                font: perro_ui::UiFont::Resource(path),
                ..
            }
            | UiCommand::UpsertTextEdit {
                font: perro_ui::UiFont::Resource(path),
                ..
            } => {
                let hash = perro_ids::string_to_u64(path);
                if self.registered_resource_fonts.insert(hash) {
                    self.painter
                        .register_resource_font(path, self.static_font_lookup);
                }
            }
            _ => {}
        }