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implement scrollbar components

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🪞👃🪞 2025-01-29 06:53:34 +01:00
parent 357efeea3e
commit 6755f972f3
4 changed files with 88 additions and 63 deletions
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105
tui/src/tui_content.rs
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@ -1,5 +1,6 @@
use crate::*;
use crate::Color::*;
use ratatui::prelude::Position;
macro_rules! impl_content_layout_render {
($Output:ty: |$self:ident: $Struct:ty, $to:ident| layout = $layout:expr; render = $render:expr) => {
impl Content<$Output> for $Struct {
@ -34,7 +35,6 @@ impl<T: Content<TuiOut>> Content<TuiOut> for std::sync::Arc<T> {
}
}
pub struct FieldH<T, U>(pub ItemPalette, pub T, pub U);
impl<T: Content<TuiOut>, U: Content<TuiOut>> Content<TuiOut> for FieldH<T, U> {
fn content (&self) -> impl Render<TuiOut> {
@ -62,15 +62,13 @@ impl<T: Content<TuiOut>, U: Content<TuiOut>> Content<TuiOut> for FieldV<T, U> {
pub struct Repeat<'a>(pub &'a str);
impl Content<TuiOut> for Repeat<'_> {
fn layout (&self, to: [u16;4]) -> [u16;4] {
to
}
fn layout (&self, to: [u16;4]) -> [u16;4] { to }
fn render (&self, to: &mut TuiOut) {
let [x, y, w, h] = to.area().xywh();
let a = self.0.len();
for (_v, y) in (y..y+h).enumerate() {
for (u, x) in (x..x+w).enumerate() {
if let Some(cell) = to.buffer.cell_mut(ratatui::prelude::Position::from((x, y))) {
if let Some(cell) = to.buffer.cell_mut(Position::from((x, y))) {
let u = u % a;
cell.set_symbol(&self.0[u..u+1]);
}
@ -81,13 +79,11 @@ impl Content<TuiOut> for Repeat<'_> {
pub struct RepeatV<'a>(pub &'a str);
impl Content<TuiOut> for RepeatV<'_> {
fn layout (&self, to: [u16;4]) -> [u16;4] {
to
}
fn layout (&self, to: [u16;4]) -> [u16;4] { to }
fn render (&self, to: &mut TuiOut) {
let [x, y, _w, h] = to.area().xywh();
for y in y..y+h {
if let Some(cell) = to.buffer.cell_mut(ratatui::prelude::Position::from((x, y))) {
if let Some(cell) = to.buffer.cell_mut(Position::from((x, y))) {
cell.set_symbol(&self.0);
}
}
@ -96,19 +92,83 @@ impl Content<TuiOut> for RepeatV<'_> {
pub struct RepeatH<'a>(pub &'a str);
impl Content<TuiOut> for RepeatH<'_> {
fn layout (&self, to: [u16;4]) -> [u16;4] {
to
}
fn layout (&self, to: [u16;4]) -> [u16;4] { to }
fn render (&self, to: &mut TuiOut) {
let [x, y, w, _h] = to.area().xywh();
for x in x..x+w {
if let Some(cell) = to.buffer.cell_mut(ratatui::prelude::Position::from((x, y))) {
if let Some(cell) = to.buffer.cell_mut(Position::from((x, y))) {
cell.set_symbol(&self.0);
}
}
}
}
pub struct ScrollbarV {
pub offset: usize,
pub length: usize,
pub total: usize,
}
impl ScrollbarV {
const ICON_DEC: &[char] = &['▲'];
const ICON_INC: &[char] = &['▼'];
}
impl Content<TuiOut> for ScrollbarV {
fn render (&self, to: &mut TuiOut) {
let [x, y1, _w, h] = to.area().xywh();
let y2 = y1 + h;
for (i, y) in (y1..=y2).enumerate() {
if let Some(cell) = to.buffer.cell_mut(Position::from((x, y))) {
if (i as usize) < (Self::ICON_DEC.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(Self::ICON_DEC[i as usize]);
} else if (i as usize) > (h as usize - Self::ICON_INC.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(Self::ICON_INC[h as usize - i]);
} else {
cell.set_fg(Rgb(0, 0, 0));
cell.set_bg(Reset);
cell.set_char('╎'); // ━
}
}
}
}
}
pub struct ScrollbarH {
pub offset: usize,
pub length: usize,
pub total: usize,
}
impl ScrollbarH {
const ICON_DEC: &[char] = &[' ', '🞀', ' '];
const ICON_INC: &[char] = &[' ', '🞂', ' '];
}
impl Content<TuiOut> for ScrollbarH {
fn render (&self, to: &mut TuiOut) {
let [x1, y, w, _h] = to.area().xywh();
let x2 = x1 + w;
for (i, x) in (x1..=x2).enumerate() {
if let Some(cell) = to.buffer.cell_mut(Position::from((x, y))) {
if i < (Self::ICON_DEC.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(Self::ICON_DEC[x as usize]);
} else if i > (w as usize - Self::ICON_INC.len()) {
cell.set_fg(Rgb(255, 255, 255));
cell.set_bg(Rgb(0, 0, 0));
cell.set_char(Self::ICON_INC[w as usize - i]);
} else {
cell.set_fg(Rgb(0, 0, 0));
cell.set_bg(Reset);
cell.set_char('╌'); // ━
}
}
}
}
}
/// A cell that takes up 3 rows on its own,
/// but stacks, giving (N+1)*2 rows per N cells.
pub struct Phat<T> {
@ -445,25 +505,6 @@ border! {
}
}
//pub trait TuiStyle: Render<TuiOut> + Sized {
//fn fg (self, color: Color) -> impl Render<TuiOut> {
//Layers::new(move |add|{ add(&Foreground(color))?; add(&self) })
//}
//fn bg (self, color: Color) -> impl Render<TuiOut> {
//Layers::new(move |add|{ add(&Background(color))?; add(&self) })
//}
//fn bold (self, on: bool) -> impl Render<TuiOut> {
//Layers::new(move |add|{ add(&Bold(on))?; add(&self) })
//}
//fn border <S: BorderStyle> (self, style: S) -> impl Render<TuiOut> {
//Bordered(style, self)
//}
//}
//impl<R: Content<TuiOut>> TuiStyle for R {}
//impl<S: BorderStyle> Content<TuiOut> for Border<S> {
//}
//impl<S: BorderStyle, R: Content<TuiOut>> Content<TuiOut> for Bordered<S, R> {
//fn content (&self) -> impl Render<TuiOut> {