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same mf who else 2026-03-21 17:35:31 +02:00
parent 5d627f7669
commit eb899906f9
8 changed files with 627 additions and 728 deletions
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144
src/text.rs
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@ -1,18 +1,62 @@
use crate::{Usually, draw::{Draw, WH}};
use crate::{Usually, draw::Draw, space::*};
pub(crate) use ::unicode_width::*;
/// Displays an owned [str]-like with fixed maximum width.
///
/// Width is computed using [unicode_width].
pub struct TrimString<T: AsRef<str>>(pub u16, pub T);
#[cfg(feature = "term")] mod impl_term {
use super::*;
use crate::term::Tui;
use ratatui::prelude::Position;
/// Displays a borrowed [str]-like with fixed maximum width
///
/// Width is computed using [unicode_width].
pub struct TrimStringRef<'a, T: AsRef<str>>(pub u16, pub &'a T);
impl Draw<Tui> for str {
fn draw (&self, to: &mut Tui) -> Usually<XYWH<u16>> { todo!() }
}
impl<'a, T: AsRef<str>> TrimString<T> {
fn to_ref (&self) -> TrimStringRef<'_, T> { TrimStringRef(self.0, &self.1) }
impl<T: AsRef<str>> Draw<Tui> for TrimString<T> {
fn draw (&self, to: &mut Tui) -> Usually<XYWH<u16>> { self.as_ref().draw(to) }
}
impl<T: AsRef<str>> Draw<Tui> for TrimStringRef<'_, T> {
fn draw (&self, to: &mut Tui) -> Usually<XYWH<u16>> {
let XYWH(x, y, w, ..) = to.1;
let mut width: u16 = 1;
let mut chars = self.1.as_ref().chars();
while let Some(c) = chars.next() {
if width > self.0 || width > w {
break
}
let pos = Position { x: x + width - 1, y };
if let Some(cell) = to.0.cell_mut(pos) {
cell.set_char(c);
}
width += c.width().unwrap_or(0) as u16;
}
let XYWH(x, y, w, ..) = XYWH(to.x(), to.y(), to.w().min(self.0).min(self.1.as_ref().width() as u16), to.h());
to.text(&self.as_ref(), x, y, w)
}
}
impl Tui {
/// Write a line of text
///
/// TODO: do a paragraph (handle newlines)
pub fn text (&mut self, text: &impl AsRef<str>, x0: u16, y: u16, max_width: u16) -> Usually<XYWH<u16>> {
let text = text.as_ref();
let mut string_width: u16 = 0;
for character in text.chars() {
let x = x0 + string_width;
let character_width = character.width().unwrap_or(0) as u16;
string_width += character_width;
if string_width > max_width {
break
}
if let Some(cell) = self.0.cell_mut(ratatui::prelude::Position { x, y }) {
cell.set_char(character);
} else {
break
}
}
Ok(XYWH(x0, y, string_width, 1))
}
}
}
/// Trim string with [unicode_width].
@ -31,6 +75,23 @@ pub fn trim_string (max_width: usize, input: impl AsRef<str>) -> String {
return output.into_iter().collect()
}
/// Displays an owned [str]-like with fixed maximum width.
///
/// Width is computed using [unicode_width].
pub struct TrimString<T: AsRef<str>>(pub u16, pub T);
impl<T: AsRef<str>> AsRef<str> for TrimString<T> { fn as_ref (&self) -> &str { self.1.as_ref() } }
impl<'a, T: AsRef<str>> TrimString<T> {
fn to_ref (&self) -> TrimStringRef<'_, T> { TrimStringRef(self.0, &self.1) }
}
/// Displays a borrowed [str]-like with fixed maximum width
///
/// Width is computed using [unicode_width].
pub struct TrimStringRef<'a, T: AsRef<str>>(pub u16, pub &'a T);
impl<T: AsRef<str>> AsRef<str> for TrimStringRef<'_, T> {
fn as_ref (&self) -> &str { self.1.as_ref() }
}
pub(crate) fn width_chars_max (max: u16, text: impl AsRef<str>) -> u16 {
let mut width: u16 = 0;
let mut chars = text.as_ref().chars();
@ -42,64 +103,3 @@ pub(crate) fn width_chars_max (max: u16, text: impl AsRef<str>) -> u16 {
}
return width
}
#[cfg(feature = "term")] mod impl_term {
use super::*;
use crate::draw::XYWH;
use crate::term::Tui;
use ratatui::prelude::Position;
impl Draw<Tui> for str {
fn draw (&self, to: &mut Tui) -> Usually<WH<u16>> { todo!() }
}
impl<T: AsRef<str>> Draw<Tui> for TrimString<T> {
fn draw (&self, to: &mut Tui) -> Usually<WH<u16>> { self.as_ref().draw(to) }
}
impl<T: AsRef<str>> Draw<Tui> for TrimStringRef<'_, T> {
fn draw (&self, to: &mut Tui) -> Usually<WH<u16>> {
let area = to.area();
let mut width: u16 = 1;
let mut chars = self.1.as_ref().chars();
while let Some(c) = chars.next() {
if width > self.0 || width > area.w() {
break
}
let x = area.x() + width - 1;
let y = area.y();
let pos = Position { x, y };
if let Some(cell) = to.cell_mut(pos) {
cell.set_char(c);
}
width += c.width().unwrap_or(0) as u16;
}
let XYWH(x, y, w, ..) = XYWH(to.x(), to.y(), to.w().min(self.0).min(self.1.as_ref().width() as u16), to.h());
to.text(&self, x, y, w)
}
}
impl Tui {
/// Write a line of text
///
/// TODO: do a paragraph (handle newlines)
fn text (&mut self, text: &impl AsRef<str>, x0: u16, y: u16, max_width: u16) {
let text = text.as_ref();
let buf = self.buffer();
let mut string_width: u16 = 0;
for character in text.chars() {
let x = x0 + string_width;
let character_width = character.width().unwrap_or(0) as u16;
string_width += character_width;
if string_width > max_width {
break
}
if let Some(cell) = buf.write().unwrap().cell_mut(ratatui::prelude::Position { x, y }) {
cell.set_char(character);
} else {
break
}
}
}
}
}