Implement line numbers
This commit is contained in:
Jeremy Soller
parent
4a3dd101f3
commit
2494a7330c
6 changed files with 223 additions and 53 deletions
46
Cargo.lock
generated
46
Cargo.lock
generated
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@ -801,7 +801,7 @@ dependencies = [
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"bitflags 1.3.2",
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"block",
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"cocoa-foundation",
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"core-foundation 0.9.3",
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"core-foundation 0.9.4",
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"core-graphics 0.22.3",
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"foreign-types 0.3.2",
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"libc",
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@ -817,7 +817,7 @@ dependencies = [
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"bitflags 1.3.2",
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"block",
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"cocoa-foundation",
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"core-foundation 0.9.3",
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"core-foundation 0.9.4",
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"core-graphics 0.23.1",
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"foreign-types 0.5.0",
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"libc",
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@ -832,7 +832,7 @@ checksum = "8c6234cbb2e4c785b456c0644748b1ac416dd045799740356f8363dfe00c93f7"
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dependencies = [
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"bitflags 1.3.2",
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"block",
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"core-foundation 0.9.3",
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"core-foundation 0.9.4",
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"core-graphics-types",
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"libc",
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"objc",
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@ -881,11 +881,11 @@ dependencies = [
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[[package]]
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name = "core-foundation"
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version = "0.9.3"
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version = "0.9.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "194a7a9e6de53fa55116934067c844d9d749312f75c6f6d0980e8c252f8c2146"
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checksum = "91e195e091a93c46f7102ec7818a2aa394e1e1771c3ab4825963fa03e45afb8f"
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dependencies = [
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"core-foundation-sys 0.8.4",
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"core-foundation-sys 0.8.6",
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"libc",
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]
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@ -897,9 +897,9 @@ checksum = "b3a71ab494c0b5b860bdc8407ae08978052417070c2ced38573a9157ad75b8ac"
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[[package]]
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name = "core-foundation-sys"
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version = "0.8.4"
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version = "0.8.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e496a50fda8aacccc86d7529e2c1e0892dbd0f898a6b5645b5561b89c3210efa"
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checksum = "06ea2b9bc92be3c2baa9334a323ebca2d6f074ff852cd1d7b11064035cd3868f"
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[[package]]
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name = "core-graphics"
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@ -920,7 +920,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2581bbab3b8ffc6fcbd550bf46c355135d16e9ff2a6ea032ad6b9bf1d7efe4fb"
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dependencies = [
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"bitflags 1.3.2",
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"core-foundation 0.9.3",
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"core-foundation 0.9.4",
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"core-graphics-types",
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"foreign-types 0.3.2",
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"libc",
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@ -933,7 +933,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "970a29baf4110c26fedbc7f82107d42c23f7e88e404c4577ed73fe99ff85a212"
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dependencies = [
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"bitflags 1.3.2",
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"core-foundation 0.9.3",
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"core-foundation 0.9.4",
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"core-graphics-types",
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"foreign-types 0.5.0",
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"libc",
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@ -946,7 +946,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2bb142d41022986c1d8ff29103a1411c8a3dfad3552f87a4f8dc50d61d4f4e33"
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dependencies = [
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"bitflags 1.3.2",
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"core-foundation 0.9.3",
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"core-foundation 0.9.4",
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"libc",
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]
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@ -1033,7 +1033,7 @@ dependencies = [
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[[package]]
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name = "cosmic-text"
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version = "0.10.0"
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source = "git+https://github.com/pop-os/cosmic-text#daa5a6615c52d352e9c87d30e1ab35b8dd14bd91"
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source = "git+https://github.com/pop-os/cosmic-text#9278e7d0c4cd6c88eabe881f431a4b50c39d3fe9"
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dependencies = [
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"cosmic_undo_2",
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"fontdb 0.16.0",
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@ -3124,9 +3124,9 @@ checksum = "ef53942eb7bf7ff43a617b3e2c1c4a5ecf5944a7c1bc12d7ee39bbb15e5c1519"
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[[package]]
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name = "linux-raw-sys"
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version = "0.4.11"
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version = "0.4.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "969488b55f8ac402214f3f5fd243ebb7206cf82de60d3172994707a4bcc2b829"
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checksum = "c4cd1a83af159aa67994778be9070f0ae1bd732942279cabb14f86f986a21456"
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[[package]]
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name = "locale_config"
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@ -3399,9 +3399,9 @@ dependencies = [
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[[package]]
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name = "modit"
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version = "0.1.1"
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version = "0.1.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b12ac86b3a7bf5696735981a33eb6c82c9d316c24653f8b24b4811173d824f69"
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checksum = "338da7e99141cfac01ae0d0b2ba09cb690ff81887bd2a1ab14b8d88ac43dc9d2"
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dependencies = [
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"log",
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]
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@ -4672,7 +4672,7 @@ dependencies = [
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"bitflags 2.4.1",
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"errno",
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"libc",
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"linux-raw-sys 0.4.11",
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"linux-raw-sys 0.4.12",
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"windows-sys 0.48.0",
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]
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@ -6483,7 +6483,7 @@ checksum = "79610794594d5e86be473ef7763f604f2159cbac8c94debd00df8fb41e86c2f8"
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dependencies = [
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"bitflags 1.3.2",
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"cocoa 0.24.1",
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"core-foundation 0.9.3",
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"core-foundation 0.9.4",
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"core-graphics 0.22.3",
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"core-video-sys",
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"dispatch",
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@ -6515,7 +6515,7 @@ dependencies = [
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"android-activity",
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"bitflags 1.3.2",
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"cfg_aliases",
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"core-foundation 0.9.3",
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"core-foundation 0.9.4",
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"core-graphics 0.22.3",
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"dispatch",
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"instant",
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@ -6745,18 +6745,18 @@ checksum = "dd15f8e0dbb966fd9245e7498c7e9e5055d9e5c8b676b95bd67091cd11a1e697"
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[[package]]
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name = "zerocopy"
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version = "0.7.26"
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version = "0.7.27"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e97e415490559a91254a2979b4829267a57d2fcd741a98eee8b722fb57289aa0"
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checksum = "f43de342578a3a14a9314a2dab1942cbfcbe5686e1f91acdc513058063eafe18"
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dependencies = [
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"zerocopy-derive",
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]
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[[package]]
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name = "zerocopy-derive"
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version = "0.7.26"
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version = "0.7.27"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "dd7e48ccf166952882ca8bd778a43502c64f33bf94c12ebe2a7f08e5a0f6689f"
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checksum = "e1012d89e3acb79fad7a799ce96866cfb8098b74638465ea1b1533d35900ca90"
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dependencies = [
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"proc-macro2",
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"quote",
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@ -150,6 +150,7 @@ pub struct Config {
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pub auto_indent: bool,
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pub font_name: String,
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pub font_size: u16,
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pub line_numbers: bool,
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pub syntax_theme_dark: String,
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pub syntax_theme_light: String,
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pub tab_width: u16,
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@ -165,6 +166,7 @@ impl Default for Config {
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auto_indent: true,
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font_name: "Fira Mono".to_string(),
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font_size: 14,
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line_numbers: true,
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syntax_theme_dark: "gruvbox-dark".to_string(),
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syntax_theme_light: "gruvbox-light".to_string(),
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tab_width: 4,
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49
src/line_number.rs
Normal file
49
src/line_number.rs
Normal file
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@ -0,0 +1,49 @@
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use cosmic_text::{
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Align, Attrs, AttrsList, BufferLine, Family, FontSystem, LayoutLine, ShapeBuffer, Shaping, Wrap,
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};
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use std::collections::HashMap;
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#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
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pub struct LineNumberKey {
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pub number: usize,
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pub width: usize,
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}
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#[derive(Debug)]
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pub struct LineNumberCache {
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cache: HashMap<LineNumberKey, Vec<LayoutLine>>,
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scratch: ShapeBuffer,
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}
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impl LineNumberCache {
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pub fn new() -> Self {
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Self {
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cache: HashMap::new(),
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scratch: ShapeBuffer::default(),
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}
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}
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pub fn clear(&mut self) {
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self.cache.clear();
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}
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pub fn get(&mut self, font_system: &mut FontSystem, key: LineNumberKey) -> &Vec<LayoutLine> {
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self.cache.entry(key).or_insert_with(|| {
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//TODO: do not repeat, used in App::init
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let attrs = Attrs::new().family(Family::Monospace);
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let text = format!("{:width$}", key.number, width = key.width);
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let mut buffer_line = BufferLine::new(text, AttrsList::new(attrs), Shaping::Advanced);
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buffer_line.set_wrap(Wrap::None);
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buffer_line.set_align(Some(Align::Left));
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buffer_line
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.layout_in_buffer(
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&mut self.scratch,
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font_system,
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1.0, /* font size adjusted later */
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1000.0, /* dummy width */
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Wrap::None,
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)
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.to_vec()
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})
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}
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}
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30
src/main.rs
30
src/main.rs
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@ -32,6 +32,9 @@ mod config;
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use icon_cache::IconCache;
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mod icon_cache;
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use line_number::LineNumberCache;
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mod line_number;
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mod localize;
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pub use self::mime_icon::{mime_icon, FALLBACK_MIME_ICON};
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@ -56,6 +59,7 @@ mod text_box;
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lazy_static::lazy_static! {
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static ref FONT_SYSTEM: Mutex<FontSystem> = Mutex::new(FontSystem::new());
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static ref ICON_CACHE: Mutex<IconCache> = Mutex::new(IconCache::new());
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static ref LINE_NUMBER_CACHE: Mutex<LineNumberCache> = Mutex::new(LineNumberCache::new());
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static ref SWASH_CACHE: Mutex<SwashCache> = Mutex::new(SwashCache::new());
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static ref SYNTAX_SYSTEM: SyntaxSystem = {
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let lazy_theme_set = two_face::theme::LazyThemeSet::from(two_face::theme::extra());
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@ -190,6 +194,7 @@ pub enum Message {
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Todo,
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ToggleAutoIndent,
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ToggleContextPage(ContextPage),
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ToggleLineNumbers,
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ToggleWordWrap,
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Undo,
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VimBindings(bool),
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@ -734,6 +739,12 @@ impl Application for App {
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font_system.db_mut().set_monospace_family(font_name);
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}
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// Reset line number cache
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{
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let mut line_number_cache = LINE_NUMBER_CACHE.lock().unwrap();
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line_number_cache.clear();
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}
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// This does a complete reset of shaping data!
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let entities: Vec<_> = self.tab_model.iter().collect();
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for entity in entities {
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@ -1130,6 +1141,20 @@ impl Application for App {
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}
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}
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}
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Message::ToggleLineNumbers => {
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self.config.line_numbers = !self.config.line_numbers;
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// This forces a redraw of all buffers
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let entities: Vec<_> = self.tab_model.iter().collect();
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for entity in entities {
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if let Some(tab) = self.tab_model.data_mut::<Tab>(entity) {
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let mut editor = tab.editor.lock().unwrap();
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editor.buffer_mut().set_redraw(true);
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}
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}
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return self.save_config();
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}
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Message::ToggleWordWrap => {
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self.config.word_wrap = !self.config.word_wrap;
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return self.save_config();
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@ -1424,11 +1449,14 @@ impl Application for App {
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}
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}
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};
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let text_box = text_box(&tab.editor, self.config.metrics())
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let mut text_box = text_box(&tab.editor, self.config.metrics())
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.on_changed(Message::TabChanged(tab_id))
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.on_context_menu(move |position_opt| {
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Message::TabContextMenu(tab_id, position_opt)
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});
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if self.config.line_numbers {
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text_box = text_box.line_numbers();
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}
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let tab_element: Element<'_, Message> = match tab.context_menu {
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Some(position) => widget::popover(
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text_box.context_menu(position),
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@ -230,7 +230,11 @@ pub fn menu_bar<'a>(config: &Config) -> Element<'a, Message> {
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),
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MenuTree::new(horizontal_rule(1)),
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menu_checkbox(fl!("word-wrap"), config.word_wrap, Message::ToggleWordWrap),
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menu_checkbox(fl!("show-line-numbers"), false, Message::Todo),
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menu_checkbox(
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fl!("show-line-numbers"),
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config.line_numbers,
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Message::ToggleLineNumbers,
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),
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menu_checkbox(fl!("highlight-current-line"), false, Message::Todo),
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menu_item(fl!("syntax-highlighting"), Message::Todo),
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MenuTree::new(horizontal_rule(1)),
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143
src/text_box.rs
143
src/text_box.rs
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@ -20,24 +20,21 @@ use cosmic::{
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use cosmic_text::{Action, Edit, Metrics, ViEditor};
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use std::{cell::Cell, cmp, sync::Mutex, time::Instant};
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use crate::{FONT_SYSTEM, SWASH_CACHE};
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use crate::{line_number::LineNumberKey, FONT_SYSTEM, LINE_NUMBER_CACHE, SWASH_CACHE};
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pub struct Appearance {
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pub background_color: Option<Color>,
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pub text_color: Color,
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}
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impl Appearance {
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pub fn dark() -> Self {
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Self {
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background_color: Some(Color::from_rgb8(0x34, 0x34, 0x34)),
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text_color: Color::from_rgb8(0xFF, 0xFF, 0xFF),
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}
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}
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pub fn light() -> Self {
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Self {
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background_color: Some(Color::from_rgb8(0xFC, 0xFC, 0xFC)),
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text_color: Color::from_rgb8(0x00, 0x00, 0x00),
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}
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}
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@ -64,6 +61,7 @@ pub struct TextBox<'a, Message> {
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on_changed: Option<Message>,
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context_menu: Option<Point>,
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on_context_menu: Option<Box<dyn Fn(Option<Point>) -> Message + 'a>>,
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line_numbers: bool,
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}
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impl<'a, Message> TextBox<'a, Message>
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@ -78,6 +76,7 @@ where
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on_changed: None,
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context_menu: None,
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on_context_menu: None,
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line_numbers: false,
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}
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}
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@ -103,6 +102,11 @@ where
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self.on_context_menu = Some(Box::new(on_context_menu));
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self
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}
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pub fn line_numbers(mut self) -> Self {
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self.line_numbers = true;
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self
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}
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}
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pub fn text_box<'a, Message>(
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@ -124,8 +128,15 @@ fn draw_rect(
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start_y: i32,
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w: i32,
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h: i32,
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color: u32,
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cosmic_color: cosmic_text::Color,
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) {
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// Grab alpha channel and green channel
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let mut color = cosmic_color.0 & 0xFF00FF00;
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// Shift red channel
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color |= (cosmic_color.0 & 0x00FF0000) >> 16;
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// Shift blue channel
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color |= (cosmic_color.0 & 0x000000FF) << 16;
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let alpha = (color >> 24) & 0xFF;
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if alpha == 0 {
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// Do not draw if alpha is zero
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@ -273,18 +284,6 @@ where
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let appearance = theme.appearance();
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if let Some(background_color) = appearance.background_color {
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renderer.fill_quad(
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renderer::Quad {
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bounds: layout.bounds(),
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border_radius: 0.0.into(),
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border_width: 0.0,
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border_color: Color::TRANSPARENT,
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},
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background_color,
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);
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}
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|
||||
let text_color = cosmic_text::Color::rgba(
|
||||
cmp::max(0, cmp::min(255, (appearance.text_color.r * 255.0) as i32)) as u8,
|
||||
cmp::max(0, cmp::min(255, (appearance.text_color.g * 255.0) as i32)) as u8,
|
||||
|
|
@ -316,23 +315,25 @@ where
|
|||
let image_w = image_w - scrollbar_w;
|
||||
|
||||
let mut font_system = FONT_SYSTEM.lock().unwrap();
|
||||
let mut editor = editor.borrow_with(&mut font_system);
|
||||
|
||||
// Set metrics and size
|
||||
editor.buffer_mut().set_metrics_and_size(
|
||||
&mut font_system,
|
||||
self.metrics.scale(scale_factor),
|
||||
image_w as f32,
|
||||
image_h as f32,
|
||||
);
|
||||
|
||||
// Shape and layout as needed
|
||||
editor.shape_as_needed();
|
||||
editor.shape_as_needed(&mut font_system);
|
||||
|
||||
let mut handle_opt = state.handle_opt.lock().unwrap();
|
||||
if editor.buffer().redraw() || handle_opt.is_none() {
|
||||
// Draw to pixel buffer
|
||||
let mut pixels = vec![0; image_w as usize * image_h as usize * 4];
|
||||
{
|
||||
let mut swash_cache = SWASH_CACHE.lock().unwrap();
|
||||
|
||||
let buffer = unsafe {
|
||||
std::slice::from_raw_parts_mut(
|
||||
pixels.as_mut_ptr() as *mut u32,
|
||||
|
|
@ -340,25 +341,111 @@ where
|
|||
)
|
||||
};
|
||||
|
||||
let (gutter, gutter_foreground) = {
|
||||
let convert_color = |color: syntect::highlighting::Color| {
|
||||
cosmic_text::Color::rgba(color.r, color.g, color.b, color.a)
|
||||
};
|
||||
let syntax_theme = editor.theme();
|
||||
let gutter = syntax_theme
|
||||
.settings
|
||||
.gutter
|
||||
.map_or(editor.background_color(), convert_color);
|
||||
let gutter_foreground = syntax_theme
|
||||
.settings
|
||||
.gutter_foreground
|
||||
.map_or(editor.foreground_color(), convert_color);
|
||||
(gutter, gutter_foreground)
|
||||
};
|
||||
|
||||
let mut line_number_width = 0.0;
|
||||
|
||||
if self.line_numbers {
|
||||
// Ensure fill with gutter color
|
||||
//TODO: optimize to only fill gutter
|
||||
draw_rect(buffer, image_w, image_h, 0, 0, image_w, image_h, gutter);
|
||||
|
||||
// Calculate number of characters needed in line number
|
||||
let mut line_number_chars = 1;
|
||||
{
|
||||
let mut line_count = editor.buffer().lines.len();
|
||||
while line_count >= 10 {
|
||||
line_count /= 10;
|
||||
line_number_chars += 1;
|
||||
}
|
||||
}
|
||||
|
||||
// Draw line numbers
|
||||
//TODO: move to cosmic-text?
|
||||
{
|
||||
let mut line_number_cache = LINE_NUMBER_CACHE.lock().unwrap();
|
||||
for run in editor.buffer().layout_runs() {
|
||||
let line_number = run.line_i.saturating_add(1);
|
||||
let line_top = run.line_top;
|
||||
|
||||
for layout_line in line_number_cache.get(
|
||||
&mut font_system,
|
||||
LineNumberKey {
|
||||
number: line_number,
|
||||
width: line_number_chars,
|
||||
},
|
||||
) {
|
||||
// These values must be scaled since layout is done at font size 1.0
|
||||
let max_ascent = layout_line.max_ascent * self.metrics.font_size;
|
||||
let max_descent = layout_line.max_descent * self.metrics.font_size;
|
||||
let line_width = layout_line.w * self.metrics.font_size;
|
||||
if line_width > line_number_width {
|
||||
line_number_width = line_width;
|
||||
}
|
||||
|
||||
// This code comes from cosmic_text::LayoutRunIter
|
||||
let glyph_height = max_ascent + max_descent;
|
||||
let centering_offset =
|
||||
(self.metrics.line_height - glyph_height) / 2.0;
|
||||
let line_y = line_top + centering_offset + max_ascent;
|
||||
|
||||
for layout_glyph in layout_line.glyphs.iter() {
|
||||
let physical_glyph =
|
||||
layout_glyph.physical((0., line_y), self.metrics.font_size);
|
||||
|
||||
swash_cache.with_pixels(
|
||||
&mut font_system,
|
||||
physical_glyph.cache_key,
|
||||
gutter_foreground,
|
||||
|x, y, color| {
|
||||
draw_rect(
|
||||
buffer,
|
||||
image_w,
|
||||
image_h,
|
||||
physical_glyph.x + x,
|
||||
physical_glyph.y + y,
|
||||
1,
|
||||
1,
|
||||
color,
|
||||
);
|
||||
},
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Draw editor
|
||||
let editor_offset_x = (line_number_width + 8.0).ceil() as i32;
|
||||
editor.draw(
|
||||
&mut SWASH_CACHE.lock().unwrap(),
|
||||
&mut font_system,
|
||||
&mut swash_cache,
|
||||
text_color,
|
||||
|x, y, w, h, color| {
|
||||
// Grab alpha channel and green channel
|
||||
let mut image_color = color.0 & 0xFF00FF00;
|
||||
// Shift red channel
|
||||
image_color |= (color.0 & 0x00FF0000) >> 16;
|
||||
// Shift blue channel
|
||||
image_color |= (color.0 & 0x000000FF) << 16;
|
||||
draw_rect(
|
||||
buffer,
|
||||
image_w,
|
||||
image_h,
|
||||
x,
|
||||
editor_offset_x + x,
|
||||
y,
|
||||
w as i32,
|
||||
h as i32,
|
||||
image_color,
|
||||
color,
|
||||
);
|
||||
},
|
||||
);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue