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|
// TODO: read all of this from terminfo
pub trait BufWrite {
fn write_buf(&self, buf: &mut Vec<u8>);
}
#[derive(Default, Debug)]
#[must_use = "this struct does nothing unless you call write_buf"]
pub struct ClearScreen;
impl BufWrite for ClearScreen {
fn write_buf(&self, buf: &mut Vec<u8>) {
buf.extend_from_slice(b"\x1b[H\x1b[J");
}
}
#[derive(Default, Debug)]
#[must_use = "this struct does nothing unless you call write_buf"]
pub struct ClearRowForward;
impl BufWrite for ClearRowForward {
fn write_buf(&self, buf: &mut Vec<u8>) {
buf.extend_from_slice(b"\x1b[K");
}
}
#[derive(Default, Debug)]
#[must_use = "this struct does nothing unless you call write_buf"]
pub struct CRLF;
impl BufWrite for CRLF {
fn write_buf(&self, buf: &mut Vec<u8>) {
buf.extend_from_slice(b"\r\n");
}
}
#[derive(Default, Debug)]
#[must_use = "this struct does nothing unless you call write_buf"]
pub struct MoveTo {
row: u16,
col: u16,
}
impl MoveTo {
pub fn new(pos: crate::grid::Pos) -> Self {
Self {
row: pos.row,
col: pos.col,
}
}
}
impl BufWrite for MoveTo {
fn write_buf(&self, buf: &mut Vec<u8>) {
if self.row == 0 && self.col == 0 {
buf.extend_from_slice(b"\x1b[H");
} else {
buf.extend_from_slice(b"\x1b[");
itoa::write(&mut *buf, self.row + 1).unwrap();
buf.push(b';');
itoa::write(&mut *buf, self.col + 1).unwrap();
buf.push(b'H');
}
}
}
#[derive(Default, Debug)]
#[must_use = "this struct does nothing unless you call write_buf"]
pub struct ClearAttrs;
impl BufWrite for ClearAttrs {
fn write_buf(&self, buf: &mut Vec<u8>) {
buf.extend_from_slice(b"\x1b[m")
}
}
#[derive(Default, Debug)]
#[must_use = "this struct does nothing unless you call write_buf"]
pub struct Attrs {
fgcolor: Option<crate::attrs::Color>,
bgcolor: Option<crate::attrs::Color>,
bold: Option<bool>,
italic: Option<bool>,
underline: Option<bool>,
inverse: Option<bool>,
}
impl Attrs {
pub fn fgcolor(mut self, fgcolor: crate::attrs::Color) -> Self {
self.fgcolor = Some(fgcolor);
self
}
pub fn bgcolor(mut self, bgcolor: crate::attrs::Color) -> Self {
self.bgcolor = Some(bgcolor);
self
}
pub fn bold(mut self, bold: bool) -> Self {
self.bold = Some(bold);
self
}
pub fn italic(mut self, italic: bool) -> Self {
self.italic = Some(italic);
self
}
pub fn underline(mut self, underline: bool) -> Self {
self.underline = Some(underline);
self
}
pub fn inverse(mut self, inverse: bool) -> Self {
self.inverse = Some(inverse);
self
}
}
impl BufWrite for Attrs {
#[allow(unused_assignments)]
fn write_buf(&self, buf: &mut Vec<u8>) {
if self.fgcolor.is_none()
&& self.bgcolor.is_none()
&& self.bold.is_none()
&& self.italic.is_none()
&& self.underline.is_none()
&& self.inverse.is_none()
{
return;
}
buf.extend_from_slice(b"\x1b[");
let mut first = true;
macro_rules! write_param {
($i:expr) => {
if first {
first = false;
} else {
buf.push(b';');
}
itoa::write(&mut *buf, $i).unwrap();
};
}
if let Some(fgcolor) = self.fgcolor {
match fgcolor {
crate::attrs::Color::Default => {
write_param!(39);
}
crate::attrs::Color::Idx(i) => {
if i < 8 {
write_param!(i + 30);
} else if i < 16 {
write_param!(i + 82);
} else {
write_param!(38);
write_param!(5);
write_param!(i);
}
}
crate::attrs::Color::Rgb(r, g, b) => {
write_param!(38);
write_param!(2);
write_param!(r);
write_param!(g);
write_param!(b);
}
}
}
if let Some(bgcolor) = self.bgcolor {
match bgcolor {
crate::attrs::Color::Default => {
write_param!(49);
}
crate::attrs::Color::Idx(i) => {
if i < 8 {
write_param!(i + 40);
} else if i < 16 {
write_param!(i + 92);
} else {
write_param!(48);
write_param!(5);
write_param!(i);
}
}
crate::attrs::Color::Rgb(r, g, b) => {
write_param!(48);
write_param!(2);
write_param!(r);
write_param!(g);
write_param!(b);
}
}
}
if let Some(bold) = self.bold {
if bold {
write_param!(1);
} else {
write_param!(22);
}
}
if let Some(italic) = self.italic {
if italic {
write_param!(3);
} else {
write_param!(23);
}
}
if let Some(underline) = self.underline {
if underline {
write_param!(4);
} else {
write_param!(24);
}
}
if let Some(inverse) = self.inverse {
if inverse {
write_param!(7);
} else {
write_param!(27);
}
}
buf.push(b'm');
}
}
#[derive(Debug)]
#[must_use = "this struct does nothing unless you call write_buf"]
pub struct MoveRight {
count: u16,
}
impl MoveRight {
pub fn new(count: u16) -> Self {
Self { count }
}
}
impl Default for MoveRight {
fn default() -> Self {
Self { count: 1 }
}
}
impl BufWrite for MoveRight {
fn write_buf(&self, buf: &mut Vec<u8>) {
match self.count {
0 => {}
1 => buf.extend_from_slice(b"\x1b[C"),
n => {
buf.extend_from_slice(b"\x1b[");
itoa::write(&mut *buf, n).unwrap();
buf.push(b'C');
}
}
}
}
#[derive(Debug)]
#[must_use = "this struct does nothing unless you call write_buf"]
pub struct EraseChar {
count: u16,
}
impl EraseChar {
pub fn new(count: u16) -> Self {
Self { count }
}
}
impl Default for EraseChar {
fn default() -> Self {
Self { count: 1 }
}
}
impl BufWrite for EraseChar {
fn write_buf(&self, buf: &mut Vec<u8>) {
match self.count {
0 => {}
1 => buf.extend_from_slice(b"\x1b[X"),
n => {
buf.extend_from_slice(b"\x1b[");
itoa::write(&mut *buf, n).unwrap();
buf.push(b'X');
}
}
}
}
#[derive(Default, Debug)]
#[must_use = "this struct does nothing unless you call write_buf"]
pub struct HideCursor {
hide: bool,
}
impl HideCursor {
pub fn new(hide: bool) -> Self {
Self { hide }
}
}
impl BufWrite for HideCursor {
fn write_buf(&self, buf: &mut Vec<u8>) {
if self.hide {
buf.extend_from_slice(b"\x1b[?25l")
} else {
buf.extend_from_slice(b"\x1b[?25h")
}
}
}
#[derive(Debug)]
#[must_use = "this struct does nothing unless you call write_buf"]
pub struct MoveFromTo {
from: crate::grid::Pos,
to: crate::grid::Pos,
}
impl MoveFromTo {
pub fn new(from: crate::grid::Pos, to: crate::grid::Pos) -> Self {
Self { from, to }
}
}
impl BufWrite for MoveFromTo {
fn write_buf(&self, buf: &mut Vec<u8>) {
if self.to.row == self.from.row + 1 && self.to.col == 0 {
crate::term::CRLF::default().write_buf(buf);
} else if self.from.row == self.to.row && self.from.col < self.to.col
{
crate::term::MoveRight::new(self.to.col - self.from.col)
.write_buf(buf);
} else if self.to != self.from {
crate::term::MoveTo::new(self.to).write_buf(buf);
}
}
}
#[derive(Default, Debug)]
#[must_use = "this struct does nothing unless you call write_buf"]
pub struct AudibleBell;
impl BufWrite for AudibleBell {
fn write_buf(&self, buf: &mut Vec<u8>) {
buf.push(b'\x07');
}
}
#[derive(Default, Debug)]
#[must_use = "this struct does nothing unless you call write_buf"]
pub struct VisualBell;
impl BufWrite for VisualBell {
fn write_buf(&self, buf: &mut Vec<u8>) {
buf.extend_from_slice(b"\x1bg");
}
}
|
