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use std::ptr::addr_of_mut;
use mlua::{UserData, UserDataFields};
use self::log::LogState;
pub mod editor;
pub mod log;
pub mod view;
pub mod window;
mod bar;
#[derive(Debug, Default)]
pub struct GlobalState {
pub view: view::SheetViewState,
pub editor: editor::EditorState,
pub active_window: window::Window,
pub log: log::LogState,
pub exit: bool,
}
const DUMMY_STATE: GlobalState = GlobalState::new();
impl GlobalState {
const fn new() -> Self {
Self {
view: view::SheetViewState::new(),
editor: editor::EditorState::new(),
log: LogState::new(),
active_window: window::Window::View,
exit: false,
}
}
pub fn get() -> &'static mut Self {
static mut GLOBAL_STATE: GlobalState = GlobalState::new();
unsafe { &mut *addr_of_mut!(GLOBAL_STATE) }
}
pub fn set_focus(&mut self, win: window::Window) {
self.active_window = win;
match win {
window::Window::Editor => self.editor.visible = true,
window::Window::Log => self.log.visible = true,
_ => {}
}
}
}
impl UserData for GlobalState {
fn add_fields<'lua, F: UserDataFields<'lua, Self>>(fields: &mut F) {
fields.add_field_function_get("view", |_, _| Ok(DUMMY_STATE.view));
fields.add_field_function_get("editor", |_, _| Ok(DUMMY_STATE.editor));
fields.add_field_function_get("log", |_, _| Ok(DUMMY_STATE.log));
fields.add_field_function_get("active_window", |_, _| {
Ok(GlobalState::get().active_window)
});
fields.add_field_function_set("active_window", |_, _, win: window::Window| {
GlobalState::get().set_focus(win);
Ok(())
});
}
fn add_methods<'lua, M: mlua::prelude::LuaUserDataMethods<'lua, Self>>(methods: &mut M) {
methods.add_function("quit", |_, _: ()| {
GlobalState::get().exit = true;
Ok(())
})
}
}
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