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use ::rayon::prelude::*;
use std::io::BufRead;
use crate::coordinates::{Coordinates, Position, Size};
use crate::files::File;
use crate::term::sized_string;
use crate::widget::Widget;
#[derive(PartialEq)]
pub struct TextView {
pub lines: Vec<String>,
pub buffer: String,
pub coordinates: Coordinates,
}
impl TextView {
pub fn new_from_file(file: &File) -> TextView {
let file = std::fs::File::open(&file.path).unwrap();
let file = std::io::BufReader::new(file);
let lines = file.lines().map(|line|
line.unwrap()
.replace("\t", " ")).collect();
TextView {
lines: lines,
buffer: String::new(),
coordinates: Coordinates::new(),
}
}
pub fn new_from_file_limit_lines(file: &File, num: usize) -> TextView {
let file = std::fs::File::open(&file.path).unwrap();
let file = std::io::BufReader::new(file);
let lines = file.lines()
.take(num)
.map(|line|
line.unwrap()
.replace("\t", " ")).collect();
TextView {
lines: lines,
buffer: String::new(),
coordinates: Coordinates::new(),
}
}
}
impl Widget for TextView {
fn get_coordinates(&self) -> &Coordinates {
&self.coordinates
}
fn set_coordinates(&mut self, coordinates: &Coordinates) {
self.coordinates = coordinates.clone();
self.refresh();
}
fn render_header(&self) -> String {
"".to_string()
}
fn refresh(&mut self) {
let (xsize, ysize) = self.get_coordinates().size().size();
let (xpos, ypos) = self.get_coordinates().position().position();
self.buffer = self.get_clearlist() +
&self
.lines
.par_iter()
.take(ysize as usize)
.enumerate()
.map(|(i, line)| {
format!(
"{}{}{}",
crate::term::goto_xy(xpos, i as u16 + ypos),
crate::term::reset(),
sized_string(&line, xsize))
})
.collect::<String>();
}
fn get_drawlist(&self) -> String {
self.buffer.clone()
}
}
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