From 58b305b9f6d13007d2ea62775054c95177f81092 Mon Sep 17 00:00:00 2001 From: Nathan Reiner Date: Thu, 25 Jul 2024 00:40:37 +0200 Subject: first sketch --- src/widgets/sheetview.rs | 360 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 360 insertions(+) create mode 100644 src/widgets/sheetview.rs (limited to 'src/widgets/sheetview.rs') diff --git a/src/widgets/sheetview.rs b/src/widgets/sheetview.rs new file mode 100644 index 0000000..57894a2 --- /dev/null +++ b/src/widgets/sheetview.rs @@ -0,0 +1,360 @@ +use std::{ + sync::{Arc, Mutex}, + thread::JoinHandle, +}; + +use layout::Offset; +use mlua::Function; +use ratatui::{ + crossterm::event::{KeyCode, KeyEvent, KeyModifiers}, + prelude::*, + style::Stylize, + text::ToLine, + widgets::{block::BlockExt, Block, Clear, Gauge, Widget}, +}; + +use crate::sheet::{ + cell::Cell, + register::{Register, SheetId}, +}; + +use super::luaeditor::LuaEditor; + +const DEFAULT_COLUMN_WIDTH: u16 = 10; + +#[derive(Debug)] +pub struct SheetView<'a> { + block: Option>, + luaeditor: Option>, + sheet: SheetId, + selection: Option<(u16, u16)>, + cursor: (u16, u16), + scroll: (u16, u16), + error_window: Option, + process_handle: Option>>, + process_progress: Arc>, +} + +impl<'a> SheetView<'a> { + pub fn new(sheet: SheetId) -> Self { + Self { + block: None, + luaeditor: None, + sheet, + selection: None, + cursor: (0, 0), + scroll: (0, 0), + error_window: None, + process_handle: None, + process_progress: Arc::new(Mutex::new(0)), + } + } + + pub fn block(mut self, block: Block<'a>) -> Self { + self.block = Some(block); + self + } + + pub fn sheet(mut self, sheet: SheetId) -> Self { + self.sheet = sheet; + self + } + + pub fn move_cursor_by(&mut self, delta: (i32, i32)) { + let lock = Register::get(self.sheet).unwrap(); + let sheet = lock.read().unwrap(); + + self.cursor.0 = ((self.cursor.0 as i32) + delta.0) + .max(0) + .min(sheet.height() as i32 - 1) as u16; + self.cursor.1 = ((self.cursor.1 as i32) + delta.1) + .max(0) + .min(sheet.width() as i32 - 1) as u16; + } + + pub fn select_mode(&mut self, flag: bool) { + if flag { + self.selection = Some(self.cursor); + } else { + self.selection = None; + } + } + + pub fn is_select_mode(&self) -> bool { + self.selection.is_some() + } + + pub fn toggle_select_mode(&mut self) { + self.select_mode(!self.is_select_mode()); + } + + pub fn selection(&self) -> Vec<(u16, u16)> { + let mut selection = Vec::new(); + + if let Some((row, column)) = self.selection_range() { + for i in row.0..=row.1 { + for j in column.0..=column.1 { + selection.push((i, j)) + } + } + } + + selection + } + + fn is_in_selection(&mut self, row: u16, column: u16) -> bool { + if let Some((row_range, column_range)) = self.selection_range() { + row >= row_range.0 + && row <= row_range.1 + && column >= column_range.0 + && column <= column_range.1 + } else { + false + } + } + + fn selection_range(&self) -> Option<((u16, u16), (u16, u16))> { + if let Some(selection) = self.selection { + let row = if selection.0 > self.cursor.0 { + (self.cursor.0, selection.0) + } else { + (selection.0, self.cursor.0) + }; + + let column = if selection.1 > self.cursor.1 { + (self.cursor.1, selection.1) + } else { + (selection.1, self.cursor.1) + }; + + Some((row, column)) + } else { + None + } + } + + fn join_process_handle_on_finished(&mut self) { + if let Some(handle) = self.process_handle.take() { + if handle.is_finished() { + self.error_window = handle.join().unwrap(); + self.process_handle = None; + } else { + self.process_handle = Some(handle); + } + } + } + + pub fn handle_key_event(&mut self, event: KeyEvent) { + if self.process_handle.is_some() { + self.join_process_handle_on_finished() + } else if let Some(_) = &self.error_window { + self.error_window = None; + } else if let Some(textarea) = &mut self.luaeditor { + match event.code { + KeyCode::Char('r') if event.modifiers == KeyModifiers::CONTROL => { + let script = textarea.text(); + *self.process_progress.lock().unwrap() = 0; + + let lua = crate::lua::new_instance().unwrap(); + let result = lua + .load(script.clone()) + .set_name("Temp Script") + .eval::(); + match result { + Ok(_) => { + let (width, height) = { + let lock = Register::get(self.sheet).unwrap(); + let sheet = lock.write().unwrap(); + (sheet.width(), sheet.height()) + }; + + let mut cells = Vec::new(); + + if let Some(_) = self.selection { + cells = self.selection() + } else { + for row in 0..height { + for column in 0..width { + cells.push((row as u16, column as u16)); + } + } + } + + { + let process_progress = Arc::clone(&self.process_progress); + let sheet = self.sheet; + self.process_handle = Some(std::thread::spawn(move || { + let lua = crate::lua::new_instance().unwrap(); + let func = lua + .load(script) + .set_name("Temp Script") + .eval::() + .unwrap(); + for (i, (row, column)) in cells.iter().enumerate() { + *process_progress.lock().unwrap() = i * 100 / cells.len(); + let cellref = { + let lock = Register::get(sheet).unwrap(); + let sheet = lock.read().unwrap(); + sheet.get_ref(*row as usize, *column as usize) + }; + if let Err(error) = func.call::<_, Cell>(cellref) { + return Some(error.to_string()); + } + } + + None + })); + } + } + Err(error) => { + self.error_window = Some(error.to_string()); + } + } + } + KeyCode::Esc => { + self.luaeditor = None; + } + _ => { + textarea.handle_key_event(event); + } + } + } else { + match event.code { + KeyCode::Char('j') => self.move_cursor_by((1, 0)), + KeyCode::Char('k') => self.move_cursor_by((-1, 0)), + KeyCode::Char('h') => self.move_cursor_by((0, -1)), + KeyCode::Char('l') => self.move_cursor_by((0, 1)), + KeyCode::Char('v') => self.toggle_select_mode(), + KeyCode::Char('s') => { + let editor = LuaEditor::new("function(cell)\n\t\nend") + .block(Some(Block::bordered().title(" Temp Script "))); + self.luaeditor = Some(editor) + } + _ => {} + } + } + } +} + +impl Widget for &mut SheetView<'_> { + fn render(self, area: ratatui::prelude::Rect, buf: &mut ratatui::prelude::Buffer) + where + Self: Sized, + { + let lock = Register::get(self.sheet).unwrap(); + let sheet = lock.read().unwrap(); + + let splits = Layout::horizontal([Constraint::Min(1), Constraint::Length(50)]).split(area); + let block_area = if self.luaeditor.is_some() { + splits[0] + } else { + area + }; + + let sheet_area = self.block.inner_if_some(block_area); + + let viewport_rows = sheet.height().min(sheet_area.height as usize); + let viewport_columns = sheet + .width() + .min((sheet_area.width / DEFAULT_COLUMN_WIDTH) as usize); + + if self.cursor.0 >= viewport_rows as u16 + self.scroll.0 { + self.scroll.0 = self.cursor.0 - viewport_rows as u16 + 1; + } else if self.cursor.0 < self.scroll.0 { + self.scroll.0 = self.cursor.0; + } + + if self.cursor.1 >= viewport_columns as u16 + self.scroll.1 { + self.scroll.1 = self.cursor.1 - viewport_columns as u16 + 1; + } else if self.cursor.1 < self.scroll.1 { + self.scroll.1 = self.cursor.1; + } + + for row in 0..viewport_rows as u16 { + for column in 0..(viewport_columns + 1) as u16 { + let (cell_pos_y, cell_pos_x) = (row + self.scroll.0, column + self.scroll.1); + + if let Some(cell) = sheet.get_cell(cell_pos_y as usize, cell_pos_x as usize) { + let cell = cell.to_string() + " "; + + let line = if (cell_pos_y, cell_pos_x) == self.cursor { + cell.to_line().bg(Color::Rgb(120, 90, 90)).white() + } else if self.is_in_selection(cell_pos_y, cell_pos_x) { + cell.to_line().bg(Color::Rgb(120, 120, 90)).white() + } else if (row + column) % 2 == 0 { + cell.to_line().bg(Color::Rgb(30, 30, 30)).white() + } else { + cell.to_line().bg(Color::Rgb(50, 50, 50)).white() + }; + + let rect = Rect::new( + sheet_area.x + column * DEFAULT_COLUMN_WIDTH, + sheet_area.y + row, + (sheet_area.width - column * DEFAULT_COLUMN_WIDTH) + .min(DEFAULT_COLUMN_WIDTH), + 1, + ); + + line.render(rect, buf); + } + } + } + + self.block.render(block_area, buf); + + if let Some(textarea) = &mut self.luaeditor { + textarea.render(splits[1], buf) + } + + if let Some(error_msg) = &self.error_window { + let lines = error_msg.lines().collect::>(); + let height = lines.len() as u16 + 2; + let width = lines.iter().map(|s| s.len()).max().unwrap_or(0) as u16 + 2; + + let centered = Rect::new( + (area.width - width) / 2, + (area.height - height) / 2, + width, + height, + ); + + let block = Block::bordered().red().on_black().bold().title(" Error "); + let inner_centered = block.inner(centered); + Clear::default().render(centered, buf); + block.render(centered, buf); + + for (i, line) in lines.iter().enumerate() { + let line = line.replace('\t', " ").red().on_black().bold(); + line.render(inner_centered.offset(Offset { x: 0, y: i as i32 }), buf); + } + } + + self.join_process_handle_on_finished(); + + if self.process_handle.is_some() { + let height = 3; + let width = area.width / 2; + + let centered = Rect::new( + (area.width - width) / 2, + (area.height - height) / 2, + width, + height, + ); + + let progress = *self.process_progress.lock().unwrap(); + let gauge = Gauge::default() + .block(Block::bordered().title("Progress").on_black()) + .gauge_style( + Style::default() + .fg(Color::White) + .bg(Color::Black) + .add_modifier(Modifier::ITALIC), + ) + .percent(progress as u16); + + Clear::default().render(centered, buf); + gauge.render(centered, buf); + } + } +} -- cgit v1.2.3-70-g09d2