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Separate drawing rows

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This commit is contained in:
mo8it 2024-08-24 19:18:13 +02:00
parent b6129ad081
commit fd2a8c01cb
2 changed files with 55 additions and 37 deletions
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2
src/list.rs
View file

@ -84,7 +84,7 @@ fn handle_list(app_state: &mut AppState, stdout: &mut StdoutLock) -> Result<()>
Event::FocusGained | Event::FocusLost => continue,
}
list_state.redraw(stdout)?;
list_state.draw(stdout)?;
}
}

90
src/list/state.rs
View file

@ -10,7 +10,10 @@ use std::{
io::{self, StdoutLock, Write},
};
use crate::{app_state::AppState, term::progress_bar, MAX_EXERCISE_NAME_LEN};
use crate::{app_state::AppState, exercise::Exercise, term::progress_bar, MAX_EXERCISE_NAME_LEN};
// +1 for padding.
const SPACE: &[u8] = &[b' '; MAX_EXERCISE_NAME_LEN + 1];
fn next_ln<const CLEAR_LAST_CHAR: bool>(stdout: &mut StdoutLock) -> io::Result<()> {
if CLEAR_LAST_CHAR {
@ -74,46 +77,24 @@ impl<'a> ListState<'a> {
separator: "─".as_bytes().repeat(term_width as usize),
};
slf.redraw(stdout)?;
slf.draw(stdout)?;
Ok(slf)
}
pub fn redraw(&mut self, stdout: &mut StdoutLock) -> io::Result<()> {
if self.term_height == 0 {
return Ok(());
}
stdout.queue(BeginSynchronizedUpdate)?.queue(MoveTo(0, 0))?;
// +1 for padding.
const SPACE: &[u8] = &[b' '; MAX_EXERCISE_NAME_LEN + 1];
stdout.write_all(b" Current State Name")?;
stdout.write_all(&SPACE[..self.name_col_width - 2])?;
stdout.write_all(b"Path")?;
next_ln::<true>(stdout)?;
let narrow = self.term_width < 95;
let show_footer = self.term_height > 6;
let max_n_rows_to_display =
(self.term_height - 1 - u16::from(show_footer) * (4 + u16::from(narrow))) as usize;
let displayed_exercises = self
.app_state
.exercises()
.iter()
.enumerate()
.filter(|(_, exercise)| match self.filter {
Filter::Done => exercise.done,
Filter::Pending => !exercise.done,
Filter::None => true,
})
.skip(self.offset)
.take(max_n_rows_to_display);
fn draw_rows(
&self,
stdout: &mut StdoutLock,
max_n_rows_to_display: usize,
filtered_exercises: impl Iterator<Item = (usize, &'a Exercise)>,
) -> io::Result<usize> {
let current_exercise_ind = self.app_state.current_exercise_ind();
let mut n_displayed_rows = 0;
for (exercise_ind, exercise) in displayed_exercises {
for (exercise_ind, exercise) in filtered_exercises
.skip(self.offset)
.take(max_n_rows_to_display)
{
if self.selected == Some(n_displayed_rows) {
stdout.queue(SetBackgroundColor(Color::Rgb {
r: 50,
@ -152,6 +133,43 @@ impl<'a> ListState<'a> {
n_displayed_rows += 1;
}
Ok(n_displayed_rows)
}
pub fn draw(&mut self, stdout: &mut StdoutLock) -> io::Result<()> {
if self.term_height == 0 {
return Ok(());
}
stdout.queue(BeginSynchronizedUpdate)?.queue(MoveTo(0, 0))?;
// Header
stdout.write_all(b" Current State Name")?;
stdout.write_all(&SPACE[..self.name_col_width - 2])?;
stdout.write_all(b"Path")?;
next_ln::<true>(stdout)?;
let narrow = self.term_width < 95;
let show_footer = self.term_height > 6;
let max_n_rows_to_display =
(self.term_height - 1 - u16::from(show_footer) * (4 + u16::from(narrow))) as usize;
// Rows
let iter = self.app_state.exercises().iter().enumerate();
let n_displayed_rows = match self.filter {
Filter::Done => self.draw_rows(
stdout,
max_n_rows_to_display,
iter.filter(|(_, exercise)| exercise.done),
)?,
Filter::Pending => self.draw_rows(
stdout,
max_n_rows_to_display,
iter.filter(|(_, exercise)| !exercise.done),
)?,
Filter::None => self.draw_rows(stdout, max_n_rows_to_display, iter)?,
};
for _ in 0..max_n_rows_to_display - n_displayed_rows {
next_ln::<false>(stdout)?;
}
@ -172,7 +190,7 @@ impl<'a> ListState<'a> {
next_ln::<false>(stdout)?;
if self.message.is_empty() {
// Help footer.
// Help footer
stdout.write_all(
"↓/j ↑/k home/g end/G │ <c>ontinue at │ <r>eset exercise │".as_bytes(),
)?;