forked from AbleOS/ableos
123 lines
3.3 KiB
Rust
123 lines
3.3 KiB
Rust
use crate::{hardware::MOUSE, vga_e::VGAE};
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use vga::{colors::Color16, writers::GraphicsWriter};
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const TERM_MINUS_ONE_LINE: usize = 4720;
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// const CURSOR_COLOR: Color16 = Color16::Cyan;
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#[derive(Debug)]
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pub struct Term {
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dirty: bool,
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term: [char; 80 * 60],
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x: u8,
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}
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impl Term {
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pub fn new() -> Self {
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let mode = VGAE.lock();
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mode.set_mode();
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drop(mode);
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Self {
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dirty: false,
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x: 0,
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term: ['\0'; 80 * 60],
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}
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}
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pub fn is_dirty(&self) -> bool {
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self.dirty
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}
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pub fn set_dirty(&mut self, dirty: bool) {
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self.dirty = dirty
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}
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pub fn print(&mut self, data: String) {
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for c in data.chars() {
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if self.x == 79 {
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self.move_up();
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return;
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}
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match c {
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'\u{08}' => {
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if self.x == 0 {
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// trace!("IMPOSSIBLE BACKSPACE");
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return;
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}
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trace!("BACKSPACE");
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self.x -= 1;
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self.term[TERM_MINUS_ONE_LINE + (self.x as usize)] = '\0';
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}
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'\n' => {
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self.move_up();
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self.x = 0;
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}
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c => {
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self.term[TERM_MINUS_ONE_LINE + (self.x as usize)] = c;
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self.x += 1;
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}
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}
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}
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}
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pub fn move_up(&mut self) {
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self.term.rotate_left(80);
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for x in 0..80 {
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self.term[TERM_MINUS_ONE_LINE + x] = '\0';
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}
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self.x = 0;
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}
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// pub fn initialize(&self) {
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// let mode = VGAE.lock();
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// mode.set_mode();
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// drop(mode);
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// }
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pub fn draw_term(&mut self) {
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if self.is_dirty() {
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trace!("Redrawing");
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let mode = VGAE.lock();
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mode.clear_screen(Color16::Black);
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// /*
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const CURSOR_COLOR: Color16 = Color16::Red;
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let mouse_coord = x86_64::instructions::interrupts::without_interrupts(|| {
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let cursor = MOUSE.lock();
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(cursor.get_x() as usize, cursor.get_y() as usize)
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});
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mode.draw_line(
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(mouse_coord.0 as isize + 0, mouse_coord.1 as isize + 0),
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(mouse_coord.0 as isize + 10, mouse_coord.1 as isize + 10),
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CURSOR_COLOR,
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);
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mode.draw_line(
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(mouse_coord.0 as isize + 0, mouse_coord.1 as isize + 0),
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(mouse_coord.0 as isize + 5, mouse_coord.1 as isize + 0),
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CURSOR_COLOR,
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);
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mode.draw_line(
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(mouse_coord.0 as isize + 0, mouse_coord.1 as isize + 0),
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(mouse_coord.0 as isize + 0, mouse_coord.1 as isize + 5),
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CURSOR_COLOR,
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);
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// */
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let mut x = 0;
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let mut y = 0;
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for c in self.term {
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mode.draw_character(x * 8, y * 8, c, Color16::White);
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if x == 79 {
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y += 1;
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x = 0;
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} else {
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x += 1
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}
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}
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self.set_dirty(false);
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trace!("Finished drawing");
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}
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}
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}
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