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https://codeberg.org/unspeaker/tengri.git
synced 2026-09-18 05:16:44 +02:00
layout (no-draw) mode for tui
This commit is contained in:
facile pop culture reference
parent
a27dacff93
commit
64c83b5460
4 changed files with 167 additions and 105 deletions
154
src/lib.rs
154
src/lib.rs
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@ -1325,21 +1325,45 @@ macro_rules! eval_xy (
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crossterm::event::read,
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};
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impl Deref for Tui { type Target = Buffer; fn deref (&self) -> &Buffer { &self.0 } }
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impl DerefMut for Tui { fn deref_mut (&mut self) -> &mut Buffer { &mut self.0 } }
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impl AsMut<Buffer> for Tui { fn as_mut (&mut self) -> &mut Buffer { &mut self.0 } }
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impl Wide<u16> for Tui { fn w (&self) -> u16 { self.1.2 } }
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impl Tall<u16> for Tui { fn h (&self) -> u16 { self.1.3 } }
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//impl Deref for Tui { type Target = Buffer; fn deref (&self) -> &Buffer { &self.0 } }
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//impl DerefMut for Tui { fn deref_mut (&mut self) -> &mut Buffer { &mut self.0 } }
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//impl AsMut<Buffer> for Tui { fn as_mut (&mut self) -> &mut Buffer { &mut self.0 } }
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impl AsRef<XYWH<u16>> for Tui {
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fn as_ref (&self) -> &XYWH<u16> {
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match self {
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Self::Draw(_, area) => area,
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Self::Layout(area) => area
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}
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}
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}
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impl Wide<u16> for Tui {
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fn w (&self) -> u16 { self.as_ref().2 }
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}
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impl Tall<u16> for Tui {
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fn h (&self) -> u16 { self.as_ref().3 }
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}
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impl Xy<u16> for Tui {
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fn x (&self) -> u16 { self.as_ref().0 }
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fn y (&self) -> u16 { self.as_ref().1 }
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}
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impl HasOrigin for Tui { fn origin (&self) -> Azimuth { Azimuth::NW } }
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impl Xy<u16> for Tui { fn x (&self) -> u16 { self.1.0 } fn y (&self) -> u16 { self.1.1 } }
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/// Terminal output.
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pub struct Tui(
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/// Ratatui buffer; area is screen size
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pub Buffer,
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/// Current draw area
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pub XYWH<u16>
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);
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pub enum Tui {
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Draw (
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/// Ratatui buffer; area is screen size
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Buffer,
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/// Current draw area
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XYWH<u16>
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),
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Layout (
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XYWH<u16>
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)
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}
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impl Tui {
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pub fn setup_panic () {
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@ -1402,14 +1426,16 @@ macro_rules! eval_xy (
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disable_raw_mode().map_err(Into::into)
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}
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pub fn new (width: u16, height: u16) -> Self {
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Self(Buffer::empty(Rect { x: 0, y: 0, width, height }), XYWH(0, 0, width, height))
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Self::Draw(Buffer::empty(Rect { x: 0, y: 0, width, height }), XYWH(0, 0, width, height))
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}
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pub fn resize <W: Write> (&mut self, back: &mut CrosstermBackend<W>, width: u16, height: u16) {
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let size = Rect { x: 0, y: 0, width, height };
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if self.0.area != size {
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back.clear_region(ClearType::All).unwrap();
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self.0.resize(size);
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self.0.reset();
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if let Self::Draw(buffer, ..) = self {
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if buffer.area != size {
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back.clear_region(ClearType::All).unwrap();
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buffer.resize(size);
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buffer.reset();
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}
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}
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}
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pub fn redraw <'b, W: Write> (
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@ -1417,20 +1443,25 @@ macro_rules! eval_xy (
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back: &mut CrosstermBackend<W>,
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mut next: &'b mut Self
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) {
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let updates = self.0.diff(&next.0);
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back.draw(updates.into_iter()).expect("failed to render");
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Backend::flush(back).expect("failed to flush output new");
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std::mem::swap(self, &mut next);
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next.0.reset();
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if let Self::Draw(prev, ..) = self && let Self::Draw(next, ..) = next {
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let updates = prev.diff(&next);
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back.draw(updates.into_iter()).expect("failed to render");
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Backend::flush(back).expect("failed to flush output new");
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std::mem::swap(prev, next);
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next.reset();
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}
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}
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pub fn update (&mut self, callback: &impl Fn(&mut Cell, u16, u16)) -> XYWH<u16> {
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for row in 0..self.h() {
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let y = self.y() + row;
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for col in 0..self.w() {
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let x = self.x() + col;
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if x < self.0.area.width && y < self.0.area.height {
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if let Some(cell) = self.0.cell_mut(Position { x, y }) {
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callback(cell, col, row);
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let XYWH(x0, y0, w, h) = self.area();
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if let Self::Draw(buffer, ..) = self {
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for row in 0..h {
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let y = y0 + row;
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for col in 0..w {
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let x = x0 + col;
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if x < buffer.area.width && y < buffer.area.height {
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if let Some(cell) = buffer.cell_mut(Position { x, y }) {
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callback(cell, col, row);
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}
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}
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}
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}
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@ -1438,17 +1469,21 @@ macro_rules! eval_xy (
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self.xywh()
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}
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pub fn blit (&mut self, text: &impl AsRef<str>, x: u16, y: u16, style: Option<Style>) {
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let text = text.as_ref();
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let style = style.unwrap_or(Style::default());
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if x < self.0.area.width && y < self.0.area.height {
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self.0.set_string(x, y, text, style);
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if let Self::Draw(buffer, ..) = self {
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let text = text.as_ref();
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let style = style.unwrap_or(Style::default());
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if x < buffer.area.width && y < buffer.area.height {
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buffer.set_string(x, y, text, style);
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}
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}
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}
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pub fn tint_all (&mut self, fg: Color, bg: Color, modifier: Modifier) {
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for cell in self.0.content.iter_mut() {
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cell.fg = fg;
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cell.bg = bg;
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cell.modifier = modifier;
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if let Self::Draw(buffer, ..) = self {
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for cell in buffer.content.iter_mut() {
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cell.fg = fg;
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cell.bg = bg;
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cell.modifier = modifier;
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}
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}
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}
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/// Spawn the TUI output thread which writes colored characters to the terminal.
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@ -1488,7 +1523,7 @@ macro_rules! eval_xy (
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prev.redraw(&mut backend, &mut next);
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}
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let timer = format!("{:>3.3}ms", perf.used.load(Relaxed));
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prev.set_string(0, 0, &timer, Style::default());
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prev.blit(&timer, 0, 0, Some(Style::default()));
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})?)
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}
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/// Draw TUI content or its error message.
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@ -1647,25 +1682,35 @@ macro_rules! eval_xy (
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if string_width > max_width {
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break
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}
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if let Some(cell) = self.0.cell_mut(ratatui::prelude::Position { x, y }) {
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cell.set_char(character);
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} else {
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break
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if let Self::Draw(buffer, ..) = self {
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if let Some(cell) = buffer.cell_mut(ratatui::prelude::Position { x, y }) {
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cell.set_char(character);
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} else {
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break
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}
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}
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}
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Ok(Some(XYWH(x0, y, string_width, 1)))
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}
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/// Get mutable reference to current clipping area
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fn area_mut (&mut self) -> &mut XYWH<u16> {
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match self {
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Self::Draw(_, area) => area,
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Self::Layout(area) => area,
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}
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}
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}
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impl Screen for Tui {
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type Unit = u16;
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/// Render drawable in subarea specified by `area`
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fn show (&mut self, content: impl Draw<Self>) -> Perhaps<XYWH<u16>> {
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let previous_area = self.1;
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Ok(if let Some(area) = content.layout(self.1)? {
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self.1 = area;
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let previous_area = self.area();
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Ok(if let Some(area) = content.layout(self.area())? {
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*self.area_mut() = area;
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if let Some(result_area) = content.draw(self)? {
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self.1 = previous_area;
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*self.area_mut() = previous_area;
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Some(result_area)
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} else {
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None
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@ -1677,7 +1722,10 @@ macro_rules! eval_xy (
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/// Get current clipping area
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fn area (&self) -> XYWH<Self::Unit> {
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self.1
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match self {
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Self::Draw(_, area) => *area,
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Self::Layout(area) => *area,
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}
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}
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fn clip <T> (
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@ -1685,12 +1733,12 @@ macro_rules! eval_xy (
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area: impl Into<Option<XYWH<u16>>>,
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draw: impl FnOnce(&mut Self)->T
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) -> T {
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let prev = self.1;
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let prev = self.area();
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if let Some(area) = area.into() {
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self.1 = area.into();
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*self.area_mut() = area.into();
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}
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let result = draw(self);
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self.1 = prev;
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*self.area_mut() = prev;
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result
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}
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}
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@ -1776,8 +1824,10 @@ macro_rules! eval_xy (
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break
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}
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let pos = Position { x: x + width - 1, y };
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if let Some(cell) = to.0.cell_mut(pos) {
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cell.set_char(c);
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if let Tui::Draw(buffer, _) = to {
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if let Some(cell) = buffer.cell_mut(pos) {
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cell.set_char(c);
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}
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}
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width += c.width().unwrap_or(0) as u16;
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}
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