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use ratatui::{
crossterm::event::{KeyCode, KeyEvent},
prelude::*,
text::ToLine,
widgets::{Paragraph, Widget},
};
use crate::{
config::{keymap::ViewKeyMap, theme::view::bar::SheetViewBarTheme, GlobalConfig},
lua::{self, iobuffer},
state::{
view::{bar::SheetViewBarState, mode::Mode},
GlobalState,
},
};
use super::statusbar::StatusBar;
const DEFAULT_COLUMN_WIDTH: u16 = 10;
#[derive(Default)]
pub struct SheetView {
bar: StatusBar,
scroll: (usize, usize),
}
impl SheetView {
pub fn new() -> Self {
Self {
bar: StatusBar::new(),
scroll: (0, 0),
}
}
pub fn handle_key_event(&mut self, event: KeyEvent) {
let mode = { GlobalState::get().view.mode };
match mode {
Mode::Command => match event.code {
KeyCode::Enter => {
if let Err(error) = lua::get().load(self.bar.input().unwrap_or("")).exec() {
iobuffer::iobuffer().write().unwrap().error(error);
}
GlobalState::get().view.cancel_mode();
self.bar.set_input_mode(false);
}
KeyCode::Esc => {
GlobalState::get().view.cancel_mode();
self.bar.set_input_mode(false);
}
_ => self.bar.handle_keyevent(event),
},
_ => {
ViewKeyMap::handle(event);
let mode = { GlobalState::get().view.mode };
if let Mode::Command = mode {
self.bar.set_input_mode(true)
}
}
}
}
}
impl Widget for &mut SheetView {
fn render(self, area: ratatui::prelude::Rect, buf: &mut ratatui::prelude::Buffer)
where
Self: Sized,
{
let mode = {
let theme = GlobalConfig::get().theme.view.clone();
let state = GlobalState::get();
let sheet = state.view.active_sheet().unwrap();
let cursor = &state.view.cursor;
let sheet_area_inner = self.bar.area(area);
let viewport_rows = sheet.height().min(sheet_area_inner.height as usize);
let viewport_columns = sheet
.width()
.min((sheet_area_inner.width / DEFAULT_COLUMN_WIDTH) as usize);
if cursor.y() >= viewport_rows + self.scroll.0 {
self.scroll.0 = (cursor.y() - viewport_rows) + 1;
} else if cursor.y() < self.scroll.0 {
self.scroll.0 = cursor.y();
}
if cursor.x() >= viewport_columns + self.scroll.1 {
self.scroll.1 = (cursor.x() - viewport_columns) + 1;
} else if cursor.x() < self.scroll.1 {
self.scroll.1 = cursor.x();
}
theme
.background
.get((), lua::get())
.unwrap_or_default()
.apply(Paragraph::default())
.render(sheet_area_inner, buf);
for row in 0..viewport_rows {
for column in 0..(viewport_columns + 1) {
let (cell_pos_y, cell_pos_x) = (row + self.scroll.0, column + self.scroll.1);
if let Some(cell_ref) = sheet.get_ref(cell_pos_y, cell_pos_x) {
let cell = cell_ref.value().to_string() + " ";
let line = if (cell_pos_y, cell_pos_x) == (cursor.y(), cursor.x()) {
theme
.cursor
.get(cell_ref, lua::get())
.unwrap_or_default()
.apply(cell.to_line())
} else if state.view.selection_contains(cell_pos_y, cell_pos_x) {
theme
.selection
.get(cell_ref, lua::get())
.unwrap_or_default()
.apply(cell.to_line())
} else {
theme
.cell
.get(cell_ref, lua::get())
.unwrap_or_default()
.apply(cell.to_line())
};
let rect = Rect::new(
sheet_area_inner.x + (column as u16) * DEFAULT_COLUMN_WIDTH,
sheet_area_inner.y + (row as u16),
(sheet_area_inner.width - (column as u16) * DEFAULT_COLUMN_WIDTH)
.min(DEFAULT_COLUMN_WIDTH),
1,
);
line.render(rect, buf);
}
}
}
state.view.mode
};
SheetViewBarState::apply(&mut self.bar, mode, lua::get());
SheetViewBarTheme::apply(&mut self.bar, mode, lua::get());
self.bar.render(area, buf);
}
}
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