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https://github.com/alacritty/alacritty.git
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Add support for wide characters
This commit is contained in:
Joe Wilm
Joe Wilm
parent
55876522a2
commit
119c7d2856
5 changed files with 87 additions and 32 deletions
1
Cargo.lock
generated
1
Cargo.lock
generated
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@ -22,6 +22,7 @@ dependencies = [
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"serde_derive 0.9.8 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_json 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_yaml 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"vte 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"xdg 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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@ -31,6 +31,7 @@ xdg = "2.0.0"
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log = "0.3"
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clap = "2.20"
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fnv = "1.0.5"
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unicode-width = "0.1.4"
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clippy = { version = "0.0.104", optional = true }
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20
src/lib.rs
20
src/lib.rs
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@ -21,19 +21,18 @@
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#![cfg_attr(feature = "clippy", deny(wrong_pub_self_convention))]
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#![cfg_attr(feature = "nightly", feature(core_intrinsics))]
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#[macro_use]
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extern crate serde_derive;
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#[macro_use] extern crate bitflags;
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#[macro_use] extern crate clap;
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#[macro_use] extern crate lazy_static;
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#[macro_use] extern crate log;
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#[macro_use] extern crate serde_derive;
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extern crate cgmath;
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#[macro_use]
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extern crate clap;
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extern crate copypasta;
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extern crate errno;
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extern crate font;
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extern crate fnv;
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extern crate font;
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extern crate glutin;
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#[macro_use]
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extern crate lazy_static;
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extern crate libc;
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extern crate mio;
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extern crate notify;
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@ -41,15 +40,10 @@ extern crate parking_lot;
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extern crate serde;
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extern crate serde_json;
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extern crate serde_yaml;
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extern crate unicode_width;
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extern crate vte;
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extern crate xdg;
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#[macro_use]
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extern crate bitflags;
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#[macro_use]
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extern crate log;
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#[macro_use]
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pub mod macros;
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@ -18,11 +18,13 @@ use index::Column;
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bitflags! {
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#[derive(Serialize, Deserialize)]
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pub flags Flags: u32 {
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const INVERSE = 0b00000001,
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const BOLD = 0b00000010,
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const ITALIC = 0b00000100,
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const UNDERLINE = 0b00001000,
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const WRAPLINE = 0b00010000,
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const INVERSE = 0b00000001,
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const BOLD = 0b00000010,
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const ITALIC = 0b00000100,
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const UNDERLINE = 0b00001000,
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const WRAPLINE = 0b00010000,
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const WIDE_CHAR = 0b00100000,
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const WIDE_CHAR_SPACER = 0b01000000,
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}
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}
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@ -20,6 +20,8 @@ use std::cmp::min;
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use std::io;
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use std::time::{Duration, Instant};
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use unicode_width::UnicodeWidthChar;
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use ansi::{self, Color, NamedColor, Attr, Handler, CharsetIndex, StandardCharset};
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use grid::{BidirectionalIterator, Grid, ClearRegion, ToRange, Indexed};
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use index::{self, Point, Column, Line, Linear, IndexRange, Contains, RangeInclusive, Side};
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@ -49,7 +51,7 @@ pub struct RenderableCellsIter<'a> {
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config: &'a Config,
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colors: &'a color::List,
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selection: Option<RangeInclusive<index::Linear>>,
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cursor_original: Option<Indexed<Cell>>
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cursor_original: (Option<Indexed<Cell>>, Option<Indexed<Cell>>),
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}
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impl<'a> RenderableCellsIter<'a> {
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@ -77,25 +79,52 @@ impl<'a> RenderableCellsIter<'a> {
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selection: selection,
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config: config,
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colors: colors,
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cursor_original: None,
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cursor_original: (None, None),
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}.initialize()
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}
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fn initialize(mut self) -> Self {
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if self.cursor_is_visible() {
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self.cursor_original = Some(Indexed {
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self.cursor_original.0 = Some(Indexed {
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line: self.cursor.line,
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column: self.cursor.col,
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inner: self.grid[self.cursor]
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});
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let mut spacer = false;
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let mut location = *self.cursor;
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if self.grid[self.cursor].flags.contains(cell::WIDE_CHAR) &&
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self.cursor.col + 1 < self.grid.num_cols()
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{
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spacer = true;
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location.col += 1;
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self.cursor_original.1 = Some(Indexed {
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line: location.line,
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column: location.col,
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inner: self.grid[&location]
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});
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}
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if self.config.custom_cursor_colors() {
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let cell = &mut self.grid[self.cursor];
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cell.fg = Color::Named(NamedColor::CursorText);
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cell.bg = Color::Named(NamedColor::Cursor);
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{
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let cell = &mut self.grid[self.cursor];
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cell.fg = Color::Named(NamedColor::CursorText);
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cell.bg = Color::Named(NamedColor::Cursor);
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}
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if spacer {
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let cell = &mut self.grid[&location];
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cell.fg = Color::Named(NamedColor::CursorText);
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cell.bg = Color::Named(NamedColor::Cursor);
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}
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} else {
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let cell = &mut self.grid[self.cursor];
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mem::swap(&mut cell.fg, &mut cell.bg);
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{
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let cell = &mut self.grid[self.cursor];
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mem::swap(&mut cell.fg, &mut cell.bg);
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}
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if spacer {
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let cell = &mut self.grid[&location];
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mem::swap(&mut cell.fg, &mut cell.bg);
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}
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}
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}
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self
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@ -112,9 +141,14 @@ impl<'a> Drop for RenderableCellsIter<'a> {
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/// Resets temporary render state on the grid
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fn drop(&mut self) {
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if self.cursor_is_visible() {
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if let Some(ref original) = self.cursor_original {
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if let Some(ref original) = self.cursor_original.0 {
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self.grid[self.cursor] = original.inner;
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}
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if let Some(ref original) = self.cursor_original.1 {
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let mut location = *self.cursor;
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location.col += 1;
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self.grid[&location] = original.inner;
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}
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}
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}
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}
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@ -702,7 +736,9 @@ impl Term {
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None
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} else {
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for cell in &line[cols.start..line_end] {
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self.push(cell.c);
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if !cell.flags.contains(cell::WIDE_CHAR_SPACER) {
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self.push(cell.c);
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}
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}
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Some(cols.start..line_end)
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@ -1001,7 +1037,6 @@ impl ansi::Handler for Term {
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#[inline]
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fn input(&mut self, c: char) {
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if self.input_needs_wrap {
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if !self.mode.contains(mode::LINE_WRAP) {
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return;
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}
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@ -1029,9 +1064,31 @@ impl ansi::Handler for Term {
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}
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{
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let cell = &mut self.grid[&self.cursor.point];
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*cell = self.cursor.template;
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cell.c = self.cursor.charsets[self.active_charset].map(c);
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// Number of cells the char will occupy
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let width = c.width();
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// Sigh, borrowck making us check the width twice. Hopefully the
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// optimizer can fix it.
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{
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let cell = &mut self.grid[&self.cursor.point];
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*cell = self.cursor.template;
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cell.c = self.cursor.charsets[self.active_charset].map(c);
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// Handle wide chars
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if let Some(2) = width {
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cell.flags.insert(cell::WIDE_CHAR);
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}
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}
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// Set spacer cell for wide chars.
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if let Some(2) = width {
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if self.cursor.point.col + 1 < self.grid.num_cols() {
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self.cursor.point.col += 1;
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let spacer = &mut self.grid[&self.cursor.point];
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*spacer = self.cursor.template;
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spacer.flags.insert(cell::WIDE_CHAR_SPACER);
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}
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}
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}
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if (self.cursor.point.col + 1) < self.grid.num_cols() {
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