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Merge pull request #223 from jonathandturner/term_size

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Switch way of doing terminal size calculation
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Jonathan Turner 2019-07-29 05:49:45 +12:00 committed by GitHub
commit 4a3ec867a7
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4 changed files with 39 additions and 24 deletions
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12
Cargo.lock generated
View File

@ -1867,6 +1867,7 @@ dependencies = [
"sysinfo 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
"tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"term 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
"term_size 1.0.0-beta1 (registry+https://github.com/rust-lang/crates.io-index)",
"toml 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
"toml-query 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
"unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@ -3035,6 +3036,16 @@ dependencies = [
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "term_size"
version = "1.0.0-beta1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "termcolor"
version = "1.0.5"
@ -3920,6 +3931,7 @@ dependencies = [
"checksum sysinfo 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c3e2cab189e59f72710e3dd5e1e0d5be0f6c5c999c326f2fdcdf3bf4483ec9fd"
"checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
"checksum term 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "edd106a334b7657c10b7c540a0106114feadeb4dc314513e97df481d5d966f42"
"checksum term_size 1.0.0-beta1 (registry+https://github.com/rust-lang/crates.io-index)" = "a8a17d8699e154863becdf18e4fd28bd0be27ca72856f54daf75c00f2566898f"
"checksum termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "96d6098003bde162e4277c70665bd87c326f5a0c3f3fbfb285787fa482d54e6e"
"checksum termion 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6a8fb22f7cde82c8220e5aeacb3258ed7ce996142c77cba193f203515e26c330"
"checksum termios 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "72b620c5ea021d75a735c943269bb07d30c9b77d6ac6b236bc8b5c496ef05625"

1
Cargo.toml
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@ -80,6 +80,7 @@ uuid = {version = "0.7.4", features = [ "v4", "serde" ]}
syntect = "3.2.0"
strip-ansi-escapes = "0.1.0"
heim = "0.0.5"
term_size = "1.0.0-beta1"
[dev-dependencies]
pretty_assertions = "0.6.1"

16
src/plugins/binaryview.rs
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@ -1,5 +1,5 @@
#![feature(option_flattening)]
use crossterm::{cursor, terminal, Attribute, RawScreen};
use crossterm::{cursor, Attribute, RawScreen};
use indexmap::IndexMap;
use nu::{
serve_plugin, CallInfo, CommandConfig, NamedType, Plugin, ShellError, SpanSource, Spanned,
@ -82,7 +82,7 @@ impl RenderContext {
}
}
pub fn clear(&mut self) {
self.frame_buffer = vec![(0, 0, 0); self.width * self.height as usize];
self.frame_buffer = vec![(0, 0, 0); self.width * self.height];
}
fn render_to_screen_lores(&mut self) -> Result<(), Box<dyn std::error::Error>> {
@ -134,6 +134,7 @@ impl RenderContext {
let fb_len = self.frame_buffer.len();
let cursor = cursor();
cursor.goto(0, 0)?;
while pos < (fb_len - self.width) {
@ -190,18 +191,17 @@ impl RenderContext {
}
}
pub fn update(&mut self) -> Result<(), Box<dyn std::error::Error>> {
let terminal = terminal();
let terminal_size = terminal.terminal_size();
let (width, height) = term_size::dimensions().unwrap();
if (self.width != terminal_size.0 as usize) || (self.height != terminal_size.1 as usize) {
if (self.width != width) || (self.height != height) {
let cursor = cursor();
cursor.hide()?;
self.width = terminal_size.0 as usize + 1;
self.width = width + 1;
self.height = if self.lores_mode {
terminal_size.1 as usize
height
} else {
terminal_size.1 as usize * 2
height * 2
};
}

34
src/plugins/textview.rs
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@ -50,17 +50,17 @@ fn paint_textview(
starting_row: usize,
use_color_buffer: bool,
) -> usize {
let terminal = terminal();
let cursor = cursor();
let size = terminal.terminal_size();
let (width, height) = term_size::dimensions().unwrap();
// render
let mut pos = 0;
let width = size.0 as usize + 1;
let height = size.1 as usize;
// account for the off-by-one
let width = width + 1;
let mut frame_buffer = vec![]; //(' ', 0, 0, 0); max_pos];
// TODO: Cache the full buffer and only recreate it if the terminal size changes
for command in draw_commands {
match command {
DrawCommand::DrawString(style, string) => {
@ -112,7 +112,7 @@ fn paint_textview(
}
if buffer_needs_scrolling {
let _ = cursor.goto(0, size.1);
let _ = cursor.goto(0, height as u16);
print!(
"{}",
ansi_term::Colour::Blue.paint("[ESC to quit, arrow keys to move]")
@ -136,11 +136,11 @@ fn scroll_view_lines_if_needed(draw_commands: Vec<DrawCommand>, use_color_buffer
let _ = input.read_async();
let terminal = terminal();
let mut size = terminal.terminal_size();
let (mut width, mut height) = term_size::dimensions().unwrap();
let mut max_bottom_line = paint_textview(&draw_commands, starting_row, use_color_buffer);
// Only scroll if needed
if max_bottom_line > size.1 as usize {
if max_bottom_line > height {
loop {
if rawkey.is_pressed(rawkey::KeyCode::Escape) {
break;
@ -153,23 +153,23 @@ fn scroll_view_lines_if_needed(draw_commands: Vec<DrawCommand>, use_color_buffer
}
}
if rawkey.is_pressed(rawkey::KeyCode::DownArrow) {
if starting_row < (max_bottom_line - size.1 as usize) {
if starting_row < (max_bottom_line - height) {
starting_row += 1;
}
max_bottom_line =
paint_textview(&draw_commands, starting_row, use_color_buffer);
}
if rawkey.is_pressed(rawkey::KeyCode::PageUp) {
starting_row -= std::cmp::min(size.1 as usize, starting_row);
starting_row -= std::cmp::min(height, starting_row);
max_bottom_line =
paint_textview(&draw_commands, starting_row, use_color_buffer);
}
if rawkey.is_pressed(rawkey::KeyCode::PageDown) {
if starting_row < (max_bottom_line - size.1 as usize) {
starting_row += size.1 as usize;
if starting_row < (max_bottom_line - height) {
starting_row += height;
if starting_row > (max_bottom_line - size.1 as usize) {
starting_row = max_bottom_line - size.1 as usize;
if starting_row > (max_bottom_line - height) {
starting_row = max_bottom_line - height;
}
}
max_bottom_line =
@ -178,9 +178,11 @@ fn scroll_view_lines_if_needed(draw_commands: Vec<DrawCommand>, use_color_buffer
thread::sleep(Duration::from_millis(50));
let new_size = terminal.terminal_size();
if size != new_size {
size = new_size;
let new_size = term_size::dimensions().unwrap();
if width != new_size.0 || height != new_size.1 {
width = new_size.0;
height = new_size.1;
let _ = terminal.clear(crossterm::ClearType::All);
max_bottom_line =
paint_textview(&draw_commands, starting_row, use_color_buffer);