this repo has no description
editor pt2.1
+101
-1
+17
tic80_rust/Cargo.lock
+17
tic80_rust/Cargo.lock
···
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checksum = "19b30a45b0cd0bcca8037f3d0dc3421eaf95327a17cad11964fb8179b4fc4832"
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[[package]]
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name = "ropey"
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version = "1.6.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "93411e420bcd1a75ddd1dc3caf18c23155eda2c090631a85af21ba19e97093b5"
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dependencies = [
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"smallvec",
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"str_indices",
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]
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[[package]]
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name = "rtrb"
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version = "0.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
···
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checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
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[[package]]
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name = "str_indices"
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version = "0.4.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d08889ec5408683408db66ad89e0e1f93dff55c73a4ccc71c427d5b277ee47e6"
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[[package]]
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name = "strength_reduce"
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version = "0.2.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
···
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"parking_lot",
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"pixels",
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"realfft",
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"ropey",
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"rtrb",
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"winit",
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]
+1
tic80_rust/Cargo.toml
+1
tic80_rust/Cargo.toml
+82
tic80_rust/src/editor/code.rs
+82
tic80_rust/src/editor/code.rs
···
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use ropey::Rope;
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#[derive(Copy, Clone, Debug)]
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pub struct Area {
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pub x: i32,
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pub y: i32,
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pub w: i32,
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pub h: i32,
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}
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pub struct CodeBuffer {
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rope: Rope,
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pub caret_line: usize,
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pub caret_col: usize,
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pub scroll_line: usize,
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pub scroll_col: usize,
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}
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impl CodeBuffer {
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#[must_use]
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pub fn from_text(text: &str) -> Self {
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Self {
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rope: Rope::from_str(text),
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caret_line: 0,
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caret_col: 0,
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scroll_line: 0,
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scroll_col: 0,
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}
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}
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pub fn line_count(&self) -> usize {
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self.rope.len_lines()
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}
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pub fn line_len(&self, line: usize) -> usize {
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if line >= self.rope.len_lines() {
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0
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} else {
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self.rope.line(line).len_chars()
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}
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}
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pub fn move_left(&mut self) {
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if self.caret_col > 0 {
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self.caret_col -= 1;
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} else if self.caret_line > 0 {
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self.caret_line -= 1;
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self.caret_col = self.line_len(self.caret_line);
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}
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}
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pub fn move_right(&mut self) {
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let len = self.line_len(self.caret_line);
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if self.caret_col < len {
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self.caret_col += 1;
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} else if self.caret_line + 1 < self.line_count() {
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self.caret_line += 1;
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self.caret_col = 0;
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}
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}
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pub fn move_up(&mut self) {
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if self.caret_line > 0 {
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self.caret_line -= 1;
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let len = self.line_len(self.caret_line);
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if self.caret_col > len {
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self.caret_col = len;
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}
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}
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}
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pub fn move_down(&mut self) {
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if self.caret_line + 1 < self.line_count() {
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self.caret_line += 1;
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let len = self.line_len(self.caret_line);
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if self.caret_col > len {
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self.caret_col = len;
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}
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}
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}
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}
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