Function set_project_manager

perro_editor/res/scripts/ui/editor_ui.rs:4906–4916

(
    ctx: &mut ScriptContext<'_, API>,
    visible: bool,
)

    "canvas_v_6", "canvas_v_7", "canvas_v_8",
];
const CANVAS_H_LINES: [&str; 9] = [
    "canvas_h_0", "canvas_h_1", "canvas_h_2", "canvas_h_3", "canvas_h_4", "canvas_h_5",
    "canvas_h_6", "canvas_h_7", "canvas_h_8",
];

/// Drops the [`apply_viewport_canvas`] memo. Call after the editor ui shell or
/// the viewport panels get rebuilt: the fresh nodes carry no canvas state.
pub fn invalidate_viewport_canvas<API: ScriptAPI + ?Sized>(ctx: &mut ScriptContext<'_, API>) {
    let _ = with_state_mut!(ctx.run, EditorState, ctx.id, |state| {
        state.canvas_memo_valid = false;
    });
}

/// Forced variant for rebuild paths.