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|
use std::convert::TryInto as _;
#[derive(Clone, Debug)]
pub struct Row {
cells: Vec<crate::cell::Cell>,
wrapped: bool,
}
impl Row {
pub fn new(cols: u16) -> Self {
Self {
cells: vec![crate::cell::Cell::default(); cols as usize],
wrapped: false,
}
}
pub fn clear(&mut self) {
for cell in &mut self.cells {
cell.clear();
}
self.wrapped = false;
}
fn cells(&self) -> impl Iterator<Item = &crate::cell::Cell> {
self.cells.iter()
}
pub fn cells_mut(
&mut self,
) -> impl Iterator<Item = &mut crate::cell::Cell> {
self.cells.iter_mut()
}
pub fn get(&self, col: u16) -> Option<&crate::cell::Cell> {
self.cells.get(col as usize)
}
pub fn get_mut(&mut self, col: u16) -> Option<&mut crate::cell::Cell> {
self.cells.get_mut(col as usize)
}
pub fn insert(&mut self, i: usize, cell: crate::cell::Cell) {
self.cells.insert(i, cell);
}
pub fn remove(&mut self, i: usize) {
self.cells.remove(i);
}
pub fn truncate(&mut self, len: usize) {
self.cells.truncate(len);
}
pub fn resize(&mut self, len: usize, cell: crate::cell::Cell) {
self.cells.resize(len, cell);
}
pub fn wrap(&mut self, wrap: bool) {
self.wrapped = wrap;
}
pub fn wrapped(&self) -> bool {
self.wrapped
}
pub fn contents(&self, start: u16, width: u16) -> String {
let mut prev_was_wide = false;
let mut contents = String::new();
for cell in self
.cells()
.skip(start as usize)
.take(width.min(self.content_width(start)) as usize)
{
if prev_was_wide {
prev_was_wide = false;
continue;
}
contents += if cell.has_contents() {
cell.contents()
} else {
" "
};
prev_was_wide = cell.is_wide();
}
contents.trim_end().to_string()
}
pub fn contents_formatted(
&self,
start: u16,
width: u16,
attrs: crate::attrs::Attrs,
) -> (Vec<u8>, crate::attrs::Attrs) {
let mut prev_was_wide = false;
let mut contents = vec![];
let mut prev_attrs = attrs;
for cell in self
.cells()
.skip(start as usize)
.take(width.min(self.content_width(start)) as usize)
{
if prev_was_wide {
prev_was_wide = false;
continue;
}
let attrs = cell.attrs();
if &prev_attrs != attrs {
contents.append(&mut attrs.escape_code_diff(&prev_attrs));
prev_attrs = *attrs;
}
contents.extend(if cell.has_contents() {
cell.contents().as_bytes()
} else {
b"\x1b[C"
});
prev_was_wide = cell.is_wide();
}
(contents, prev_attrs)
}
fn content_width(&self, start: u16) -> u16 {
for (col, cell) in
self.cells.iter().skip(start as usize).enumerate().rev()
{
if cell.has_contents() {
let width: u16 = col.try_into().unwrap();
return width + 1;
}
}
0
}
}
|
