11 Commits

28 changed files with 1832 additions and 862 deletions

318
Cargo.lock generated
View File

@ -163,6 +163,12 @@ dependencies = [
"x11rb", "x11rb",
] ]
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@ -523,6 +529,12 @@ version = "1.1.0"
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[[package]] [[package]]
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@ -696,6 +708,21 @@ dependencies = [
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] ]
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@ -745,6 +772,27 @@ version = "1.0.0"
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@ -853,6 +901,12 @@ dependencies = [
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] ]
[[package]]
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@ -1326,6 +1380,12 @@ dependencies = [
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[[package]] [[package]]
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@ -1344,11 +1404,12 @@ dependencies = [
[[package]] [[package]]
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"eyre", "eyre",
@ -1356,7 +1417,7 @@ dependencies = [
"half", "half",
"insta", "insta",
"log", "log",
"rand", "rand 0.9.1",
"rfd", "rfd",
"serde", "serde",
"wasm-bindgen-futures", "wasm-bindgen-futures",
@ -1471,6 +1532,15 @@ version = "3.1.0"
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dependencies = [
"arrayvec",
]
[[package]] [[package]]
name = "libc" name = "libc"
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@ -1580,6 +1650,24 @@ dependencies = [
"paste", "paste",
] ]
[[package]]
name = "mime"
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[[package]] [[package]]
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@ -2047,6 +2135,56 @@ version = "2.3.1"
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"rand 0.8.5",
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@ -2179,6 +2317,15 @@ version = "5.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
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]
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@ -2186,7 +2333,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [ dependencies = [
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"rand_core", "rand_core 0.9.3",
] ]
[[package]] [[package]]
@ -2196,9 +2343,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d3022b5f1df60f26e1ffddd6c66e8aa15de382ae63b3a0c1bfc0e4d3e3f325cb" checksum = "d3022b5f1df60f26e1ffddd6c66e8aa15de382ae63b3a0c1bfc0e4d3e3f325cb"
dependencies = [ dependencies = [
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"rand_core", "rand_core 0.9.3",
] ]
[[package]]
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[[package]] [[package]]
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@ -2214,6 +2367,12 @@ version = "0.6.2"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "20675572f6f24e9e76ef639bc5552774ed45f1c30e2951e1e99c59888861c539" checksum = "20675572f6f24e9e76ef639bc5552774ed45f1c30e2951e1e99c59888861c539"
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[[package]] [[package]]
name = "redox_syscall" name = "redox_syscall"
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@ -2267,6 +2426,20 @@ version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "19b30a45b0cd0bcca8037f3d0dc3421eaf95327a17cad11964fb8179b4fc4832" checksum = "19b30a45b0cd0bcca8037f3d0dc3421eaf95327a17cad11964fb8179b4fc4832"
[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cadccb3d99a9efb8e5e00c16fbb732cbe400db2ec7fc004697ee7d97d86cf1f4"
dependencies = [
"log",
"pico-args",
"rgb",
"svgtypes",
"tiny-skia",
"usvg",
]
[[package]] [[package]]
name = "rfd" name = "rfd"
version = "0.15.3" version = "0.15.3"
@ -2291,6 +2464,15 @@ dependencies = [
"windows-sys 0.59.0", "windows-sys 0.59.0",
] ]
[[package]]
name = "rgb"
version = "0.8.50"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "57397d16646700483b67d2dd6511d79318f9d057fdbd21a4066aeac8b41d310a"
dependencies = [
"bytemuck",
]
[[package]] [[package]]
name = "ron" name = "ron"
version = "0.8.1" version = "0.8.1"
@ -2303,6 +2485,12 @@ dependencies = [
"serde_derive", "serde_derive",
] ]
[[package]]
name = "roxmltree"
version = "0.19.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3cd14fd5e3b777a7422cca79358c57a8f6e3a703d9ac187448d0daf220c2407f"
[[package]] [[package]]
name = "rustc-hash" name = "rustc-hash"
version = "1.1.0" version = "1.1.0"
@ -2396,6 +2584,27 @@ version = "2.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bbbb5d9659141646ae647b42fe094daf6c6192d1620870b449d9557f748b2daa" checksum = "bbbb5d9659141646ae647b42fe094daf6c6192d1620870b449d9557f748b2daa"
[[package]]
name = "simplecss"
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[[package]]
name = "siphasher"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]] [[package]]
name = "slab" name = "slab"
version = "0.4.9" version = "0.4.9"
@ -2486,6 +2695,15 @@ version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f" checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
[[package]]
name = "strict-num"
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dependencies = [
"float-cmp",
]
[[package]] [[package]]
name = "strum" name = "strum"
version = "0.26.3" version = "0.26.3"
@ -2508,6 +2726,16 @@ dependencies = [
"syn", "syn",
] ]
[[package]]
name = "svgtypes"
version = "0.13.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"kurbo",
"siphasher 0.3.11",
]
[[package]] [[package]]
name = "syn" name = "syn"
version = "2.0.100" version = "2.0.100"
@ -2609,6 +2837,32 @@ dependencies = [
"weezl", "weezl",
] ]
[[package]]
name = "tiny-skia"
version = "0.11.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "83d13394d44dae3207b52a326c0c85a8bf87f1541f23b0d143811088497b09ab"
dependencies = [
"arrayref",
"arrayvec",
"bytemuck",
"cfg-if",
"log",
"png",
"tiny-skia-path",
]
[[package]]
name = "tiny-skia-path"
version = "0.11.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9c9e7fc0c2e86a30b117d0462aa261b72b7a99b7ebd7deb3a14ceda95c5bdc93"
dependencies = [
"arrayref",
"bytemuck",
"strict-num",
]
[[package]] [[package]]
name = "tinystr" name = "tinystr"
version = "0.7.6" version = "0.7.6"
@ -2684,6 +2938,12 @@ dependencies = [
"rustc-hash", "rustc-hash",
] ]
[[package]]
name = "unicase"
version = "2.8.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "75b844d17643ee918803943289730bec8aac480150456169e647ed0b576ba539"
[[package]] [[package]]
name = "unicode-ident" name = "unicode-ident"
version = "1.0.18" version = "1.0.18"
@ -2719,6 +2979,50 @@ dependencies = [
"percent-encoding", "percent-encoding",
] ]
[[package]]
name = "usvg"
version = "0.37.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "38b0a51b72ab80ca511d126b77feeeb4fb1e972764653e61feac30adc161a756"
dependencies = [
"base64 0.21.7",
"log",
"pico-args",
"usvg-parser",
"usvg-tree",
"xmlwriter",
]
[[package]]
name = "usvg-parser"
version = "0.37.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9bd4e3c291f45d152929a31f0f6c819245e2921bfd01e7bd91201a9af39a2bdc"
dependencies = [
"data-url",
"flate2",
"imagesize",
"kurbo",
"log",
"roxmltree",
"simplecss",
"siphasher 0.3.11",
"svgtypes",
"usvg-tree",
]
[[package]]
name = "usvg-tree"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"tiny-skia-path",
]
[[package]] [[package]]
name = "utf16_iter" name = "utf16_iter"
version = "1.0.5" version = "1.0.5"
@ -3525,6 +3829,12 @@ version = "0.8.26"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a62ce76d9b56901b19a74f19431b0d8b3bc7ca4ad685a746dfd78ca8f4fc6bda" checksum = "a62ce76d9b56901b19a74f19431b0d8b3bc7ca4ad685a746dfd78ca8f4fc6bda"
[[package]]
name = "xmlwriter"
version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ec7a2a501ed189703dba8b08142f057e887dfc4b2cc4db2d343ac6376ba3e0b9"
[[package]] [[package]]
name = "yoke" name = "yoke"
version = "0.7.5" version = "0.7.5"

View File

@ -1,6 +1,6 @@
[package] [package]
name = "inkr" name = "inkr"
version = "0.1.0" version = "1.0.0"
authors = [] authors = []
edition = "2024" edition = "2024"
@ -13,6 +13,7 @@ pinenote = []
[dependencies] [dependencies]
egui = "0.31" egui = "0.31"
egui_extras = { version = "0.31", features = ["svg"] }
eframe = { version = "0.31", default-features = false, features = [ eframe = { version = "0.31", default-features = false, features = [
"glow", # alt: "wgpu". "glow", # alt: "wgpu".
"persistence", "persistence",

27
PKGBUILD Normal file
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@ -0,0 +1,27 @@
pkgname=inkr
pkgver=1.0.0
pkgrel=1
pkgdesc="A note-taking and handwriting tool"
arch=('x86_64' 'aarch64')
url="https://git.nubo.sh/hulthe/inkr"
#license=('GPL')
groups=('base-devel')
depends=('glibc')
makedepends=('cargo')
#optdepends=('ed: for "patch -e" functionality')
#source=(" ftp://ftp.gnu.org/gnu/$pkgname/$pkgname-$pkgver.tar.xz"{,.sig})
#sha256sums=('SKIP')
prepare() {
export RUSTUP_TOOLCHAIN=stable
cargo fetch --locked --target "$(rustc -vV | sed -n 's/host: //p')"
}
build() {
export RUSTUP_TOOLCHAIN=stable
cargo build --frozen --release
}
package() {
cd ..
install -Dm0755 -t "$pkgdir/usr/bin/" "${CARGO_TARGET_DIR:-target}/release/$pkgname"
install -Dm0755 -t "$pkgdir/usr/share/applications/" "assets/$pkgname.desktop"
install -Dm0755 "assets/icon.svg" "$pkgdir/usr/share/pixmaps/$pkgname.svg"
}

73
assets/collapse-icon.svg Normal file
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@ -0,0 +1,73 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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height="256"
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inkscape:version="1.4.2 (ebf0e940, 2025-05-08)"
sodipodi:docname="collapse-icon.svg"
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xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
xmlns="http://www.w3.org/2000/svg"
xmlns:svg="http://www.w3.org/2000/svg">
<sodipodi:namedview
id="namedview1"
pagecolor="#505050"
bordercolor="#eeeeee"
borderopacity="1"
inkscape:showpageshadow="0"
inkscape:pageopacity="0"
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inkscape:document-units="mm"
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id="defs1" />
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id="layer1">
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style="fill:#000000;fill-opacity:0;stroke:#ffffff;stroke-width:4.92907;stroke-linejoin:miter;stroke-dasharray:none;stroke-opacity:1"
id="rect1"
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style="fill:#000000;fill-opacity:0;stroke:#ffffff;stroke-width:4.92628;stroke-linejoin:miter;stroke-dasharray:none;stroke-opacity:1"
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<path
style="fill:#000000;fill-opacity:0;stroke:#ffffff;stroke-width:3.12398;stroke-linecap:round;stroke-linejoin:miter;stroke-dasharray:none;stroke-opacity:1"
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After

Width:  |  Height:  |  Size: 2.8 KiB

9
assets/inkr.desktop Executable file
View File

@ -0,0 +1,9 @@
[Desktop Entry]
Name=inkr
Exec=inkr
Terminal=false
Type=Application
Icon=inkr
StartupWMClass=inkr
MimeType=x-scheme-handler/inkr;
Categories=Office;

View File

@ -2,11 +2,14 @@ use std::{
fs, fs,
path::PathBuf, path::PathBuf,
sync::{Arc, mpsc}, sync::{Arc, mpsc},
thread::JoinHandle,
time::{Duration, Instant},
}; };
use crate::{file_editor::FileEditor, preferences::Preferences, util::GuiSender}; use crate::{file_editor::FileEditor, folder::Folder, preferences::Preferences, util::GuiSender};
use egui::{ use egui::{
Align, Button, Color32, FontData, FontDefinitions, PointerButton, RichText, ScrollArea, Stroke, Align, Button, Color32, Context, FontData, FontDefinitions, Image, Key, Modifiers,
PointerButton, RichText, ScrollArea, Stroke, Widget, include_image,
}; };
#[derive(serde::Deserialize, serde::Serialize)] #[derive(serde::Deserialize, serde::Serialize)]
@ -18,13 +21,46 @@ pub struct App {
actions_tx: mpsc::Sender<Action>, actions_tx: mpsc::Sender<Action>,
#[serde(skip)] #[serde(skip)]
actions_rx: mpsc::Receiver<Action>, actions_rx: mpsc::Receiver<Action>,
#[serde(skip)]
jobs: Jobs,
tabs: Vec<(TabId, Tab)>, tabs: Vec<(TabId, Tab)>,
show_folders: bool,
folders: Vec<Folder>,
open_tab_index: Option<usize>, open_tab_index: Option<usize>,
next_tab_id: TabId, next_tab_id: TabId,
} }
pub struct Jobs {
handles: Vec<JoinHandle<()>>,
actions_tx: mpsc::Sender<Action>,
}
impl Jobs {
fn start(&mut self, ctx: &Context, job: impl FnOnce() -> Option<Action> + Send + 'static) {
let ctx = ctx.clone();
let actions_tx = self.actions_tx.clone();
self.handles.push(std::thread::spawn(move || {
// start rendering the spinner thingy
ctx.request_repaint();
let start = Instant::now();
if let Some(action) = job() {
let _ = actions_tx.send(action);
ctx.request_repaint();
};
// Make sure that task takes at least 250ms to run, so that the spinner won't blink
let sleep_for = Duration::from_millis(250).saturating_sub(start.elapsed());
std::thread::sleep(sleep_for);
}));
}
}
#[derive(serde::Deserialize, serde::Serialize)] #[derive(serde::Deserialize, serde::Serialize)]
enum Tab { enum Tab {
File(FileEditor), File(FileEditor),
@ -36,12 +72,19 @@ impl Tab {
Tab::File(file_editor) => file_editor.title(), Tab::File(file_editor) => file_editor.title(),
} }
} }
pub fn is_dirty(&self) -> bool {
match self {
Tab::File(file_editor) => file_editor.is_dirty,
}
}
} }
pub type TabId = usize; pub type TabId = usize;
pub enum Action { pub enum Action {
OpenFile(FileEditor), OpenFile(FileEditor),
OpenFolder(Folder),
MoveFile(TabId, PathBuf), MoveFile(TabId, PathBuf),
CloseTab(TabId), CloseTab(TabId),
// TODO // TODO
@ -55,11 +98,17 @@ impl Default for App {
let (actions_tx, actions_rx) = mpsc::channel(); let (actions_tx, actions_rx) = mpsc::channel();
Self { Self {
preferences: Preferences::default(), preferences: Preferences::default(),
actions_tx, actions_tx: actions_tx.clone(/* this is silly, i know */),
actions_rx, actions_rx,
jobs: Jobs {
handles: Default::default(),
actions_tx,
},
tabs: vec![(1, Tab::File(FileEditor::new("note.md")))], tabs: vec![(1, Tab::File(FileEditor::new("note.md")))],
open_tab_index: None, open_tab_index: None,
next_tab_id: 2, next_tab_id: 2,
show_folders: false,
folders: vec![],
} }
} }
} }
@ -139,6 +188,9 @@ impl App {
Stroke::new(1.0, Color32::from_rgb(200, 200, 200)); Stroke::new(1.0, Color32::from_rgb(200, 200, 200));
}); });
// enable features on egui_extras to add more image types
egui_extras::install_image_loaders(&cc.egui_ctx);
if let Some(storage) = cc.storage { if let Some(storage) = cc.storage {
return eframe::get_value(storage, eframe::APP_KEY).unwrap_or_default(); return eframe::get_value(storage, eframe::APP_KEY).unwrap_or_default();
} }
@ -146,12 +198,24 @@ impl App {
Default::default() Default::default()
} }
fn actions_tx(&self, ctx: &egui::Context) -> GuiSender<Action> { fn actions_tx(&self, ctx: &Context) -> GuiSender<Action> {
GuiSender::new(self.actions_tx.clone(), ctx) GuiSender::new(self.actions_tx.clone(), ctx)
} }
fn handle_action(&mut self, action: Action) { fn handle_action(&mut self, action: Action) {
match action { match action {
Action::OpenFolder(new_folder) => {
if let Some(folder) = self
.folders
.iter_mut()
.find(|folder| folder.path() == new_folder.path())
{
*folder = new_folder;
} else {
self.folders.push(new_folder);
self.folders.sort_by(|a, b| a.name().cmp(b.name()));
}
}
Action::OpenFile(file_editor) => { Action::OpenFile(file_editor) => {
self.open_tab(Tab::File(file_editor)); self.open_tab(Tab::File(file_editor));
} }
@ -175,9 +239,11 @@ impl eframe::App for App {
eframe::set_value(storage, eframe::APP_KEY, self); eframe::set_value(storage, eframe::APP_KEY, self);
} }
fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) { fn update(&mut self, ctx: &Context, _frame: &mut eframe::Frame) {
self.preferences.apply(ctx); self.preferences.apply(ctx);
self.jobs.handles.retain(|job| !job.is_finished());
while let Ok(action) = self.actions_rx.try_recv() { while let Ok(action) = self.actions_rx.try_recv() {
self.handle_action(action); self.handle_action(action);
} }
@ -186,11 +252,11 @@ impl eframe::App for App {
self.open_tab_index = Some(self.tabs.len().saturating_sub(1)); self.open_tab_index = Some(self.tabs.len().saturating_sub(1));
} }
//ctx.input_mut(|input| { ctx.input_mut(|input| {
// if input.consume_key(Modifiers::CTRL, Key::H) { if input.consume_key(Modifiers::CTRL, Key::S) {
// self.buffer.push(BufferItem::Painting(Default::default())); self.save_active_tab(ctx);
// } }
//}); });
egui::TopBottomPanel::top("top_panel").show(ctx, |ui| { egui::TopBottomPanel::top("top_panel").show(ctx, |ui| {
egui::containers::menu::Bar::new().ui(ui, |ui| { egui::containers::menu::Bar::new().ui(ui, |ui| {
@ -205,27 +271,25 @@ impl eframe::App for App {
#[cfg(not(target_arch = "wasm32"))] #[cfg(not(target_arch = "wasm32"))]
if ui.button("Open File").clicked() { if ui.button("Open File").clicked() {
let actions_tx = self.actions_tx(ui.ctx()); self.jobs.start(ui.ctx(), move || {
std::thread::spawn(move || { let file_path = rfd::FileDialog::new().pick_file()?;
let file = rfd::FileDialog::new().pick_file();
let Some(file_path) = file else { return }; let text = fs::read_to_string(&file_path)
.inspect_err(|e| log::error!("Failed to read {file_path:?}: {e}"))
let text = match fs::read_to_string(&file_path) { .ok()?;
Ok(text) => text,
Err(e) => {
log::error!("Failed to read {file_path:?}: {e}");
return;
}
};
let editor = FileEditor::from_file(file_path, &text); let editor = FileEditor::from_file(file_path, &text);
let _ = actions_tx.send(Action::OpenFile(editor)); Some(Action::OpenFile(editor))
}); });
} }
if ui.button("Open Folder").clicked() { if ui.button("Open Folder").clicked() {
log::error!("Open Folder not implemented"); self.jobs.start(ui.ctx(), move || {
let path = rfd::FileDialog::new().pick_folder()?;
let name = path.file_name()?.to_string_lossy().to_string();
let folder = Folder::NotLoaded { name, path };
Some(Action::OpenFolder(folder))
});
} }
if ui if ui
@ -237,52 +301,41 @@ impl eframe::App for App {
} }
} }
let open_file = let can_save_file = self
self.open_tab_index .open_tab_index
.and_then(|i| self.tabs.get(i)) .and_then(|i| self.tabs.get(i))
.and_then(|(id, tab)| match tab { .map(|(id, tab)| match tab {
Tab::File(file_editor) => Some((*id, file_editor)), Tab::File(file_editor) => (*id, file_editor),
}); })
.and_then(|(_, file_editor)| file_editor.path().zip(Some(file_editor)))
.is_some();
let open_file_with_path = open_file if ui.add_enabled(can_save_file, Button::new("Save")).clicked() {
.clone() self.save_active_tab(ui.ctx());
.and_then(|(_, file_editor)| file_editor.path().zip(Some(file_editor))); }
if ui let open_file = self.open_tab_index.and_then(|i| self.tabs.get(i)).map(
.add_enabled(open_file_with_path.is_some(), Button::new("Save")) |(id, tab)| match tab {
.clicked() Tab::File(file_editor) => (*id, file_editor),
{ },
if let Some((file_path, file_editor)) = open_file_with_path { );
let text = file_editor.to_string();
let file_path = file_path.to_owned();
std::thread::spawn(move || {
if let Err(e) = fs::write(file_path, text.as_bytes()) {
log::error!("{e}");
};
});
}
}
#[cfg(not(target_arch = "wasm32"))] #[cfg(not(target_arch = "wasm32"))]
if ui if ui
.add_enabled(open_file.is_some(), Button::new("Save As")) .add_enabled(open_file.is_some(), Button::new("Save As"))
.clicked() .clicked()
{ {
let actions_tx = self.actions_tx(ui.ctx());
let (tab_id, editor) = let (tab_id, editor) =
open_file.expect("We checked that open_file is_some"); open_file.expect("We checked that open_file is_some");
let text = editor.to_string(); let text = editor.to_string();
std::thread::spawn(move || { self.jobs.start(ui.ctx(), move || {
let Some(file_path) = rfd::FileDialog::new().save_file() else { let file_path = rfd::FileDialog::new().save_file()?;
return;
};
if let Err(e) = fs::write(&file_path, text.as_bytes()) { fs::write(&file_path, text.as_bytes())
log::error!("{e}"); .inspect_err(|e| log::error!("{e}"))
return; .ok()?;
};
let _ = actions_tx.send(Action::MoveFile(tab_id, file_path)); Some(Action::MoveFile(tab_id, file_path))
}); });
} }
@ -297,7 +350,18 @@ impl eframe::App for App {
} }
}); });
ui.add_space(16.0); ui.add_space(8.0);
let image = Image::new(include_image!("../assets/collapse-icon.svg"));
let image = image.tint(ui.style().visuals.text_color());
if Button::image(image).ui(ui).clicked() {
self.show_folders = !self.show_folders;
}
if !self.jobs.handles.is_empty() {
ui.add_space(8.0);
ui.spinner();
}
ui.add_space(16.0); ui.add_space(16.0);
@ -306,8 +370,7 @@ impl eframe::App for App {
let selected = self.open_tab_index == Some(i); let selected = self.open_tab_index == Some(i);
let mut button = Button::new(tab.title()).selected(selected); let mut button = Button::new(tab.title()).selected(selected);
let dirty = i == 0; // TODO: mark as dirty when contents hasn't been saved if tab.is_dirty() {
if dirty {
button = button.right_text(RichText::new("*").strong()) button = button.right_text(RichText::new("*").strong())
} }
@ -323,6 +386,39 @@ impl eframe::App for App {
}); });
}); });
egui::SidePanel::left("file browser")
.resizable(true)
.show_animated(ctx, self.show_folders, |ui| {
if ui.button("refresh").clicked() {
for folder in &mut self.folders {
folder.unload();
}
}
ScrollArea::both().auto_shrink(false).show(ui, |ui| {
self.folders.retain_mut(|folder| {
let response = folder.show(ui);
if let Some(file_path) = response.open_file {
let file_path = file_path.to_owned();
self.jobs.start(ui.ctx(), move || {
let text = fs::read_to_string(&file_path)
.inspect_err(|e| {
log::error!("Failed to read {file_path:?}: {e}")
})
.ok()?;
let editor = FileEditor::from_file(file_path, &text);
Some(Action::OpenFile(editor))
});
}
// delete on right-click
!response.clicked_by(PointerButton::Secondary)
});
});
});
egui::CentralPanel::default().show(ctx, |ui| { egui::CentralPanel::default().show(ctx, |ui| {
if let Some(Tab::File(file_editor)) = self if let Some(Tab::File(file_editor)) = self
.open_tab_index .open_tab_index
@ -354,5 +450,33 @@ impl App {
let id = self.next_tab_id; let id = self.next_tab_id;
self.next_tab_id += 1; self.next_tab_id += 1;
self.tabs.insert(i, (id, tab)); self.tabs.insert(i, (id, tab));
self.open_tab_index = Some(i);
}
fn save_active_tab(&mut self, ctx: &Context) {
let open_file = self
.open_tab_index
.and_then(|i| self.tabs.get_mut(i))
.map(|(id, tab)| match tab {
Tab::File(file_editor) => (*id, file_editor),
})
.and_then(|(_, file_editor)| {
file_editor
.path()
.map(ToOwned::to_owned)
.zip(Some(file_editor))
});
if let Some((file_path, file_editor)) = open_file {
file_editor.is_dirty = false;
let text = file_editor.to_string();
let file_path = file_path.to_owned();
self.jobs.start(ctx, move || {
if let Err(e) = fs::write(file_path, text.as_bytes()) {
log::error!("{e}");
};
None
});
}
} }
} }

View File

@ -0,0 +1,243 @@
use egui::text::{CCursorRange, LayoutJob};
use crate::easy_mark::easy_mark_parser;
/// Highlight easymark, memoizing previous output to save CPU.
///
/// In practice, the highlighter is fast enough not to need any caching.
#[derive(Default)]
pub struct MemoizedHighlighter {
style: egui::Style,
code: String,
output: LayoutJob,
}
impl MemoizedHighlighter {
pub fn highlight(
&mut self,
egui_style: &egui::Style,
code: &str,
cursor: Option<CCursorRange>,
) -> LayoutJob {
if (&self.style, self.code.as_str()) != (egui_style, code) {
self.style = egui_style.clone();
code.clone_into(&mut self.code);
self.output = highlight_easymark(egui_style, code, cursor);
}
self.output.clone()
}
}
pub fn highlight_easymark(
egui_style: &egui::Style,
mut text: &str,
// TODO: hide special characters where cursor isn't
_cursor: Option<CCursorRange>,
) -> LayoutJob {
let mut job = LayoutJob::default();
let mut style = easy_mark_parser::Style::default();
let mut start_of_line = true;
const CODE_INDENT: f32 = 10.0;
while !text.is_empty() {
if start_of_line && text.starts_with("```") {
let astyle = format_from_style(
egui_style,
&easy_mark_parser::Style {
code: true,
..Default::default()
},
);
// Render the initial backticks as spaces
text = &text[3..];
job.append(" ", CODE_INDENT, astyle.clone());
match text.find("\n```") {
Some(n) => {
for line in text[..n + 1].lines() {
job.append(line, CODE_INDENT, astyle.clone());
job.append("\n", 0.0, astyle.clone());
}
// Render the final backticks as spaces
job.append(" ", CODE_INDENT, astyle);
text = &text[n + 4..];
}
None => {
job.append(text, 0.0, astyle.clone());
text = "";
}
};
style = Default::default();
continue;
}
if text.starts_with('`') {
style.code = true;
let end = text[1..]
.find(&['`', '\n'][..])
.map_or_else(|| text.len(), |i| i + 2);
job.append(&text[..end], 0.0, format_from_style(egui_style, &style));
text = &text[end..];
style.code = false;
continue;
}
let skip;
// zero-width space
let _zws = "\u{200b}";
let mut apply_basic_style =
|text: &mut &str,
style: &mut easy_mark_parser::Style,
access: fn(&mut easy_mark_parser::Style) -> &mut bool| {
let skip = if *access(style) {
// Include the character that is ending this style:
job.append(&text[..1], 0.0, format_from_style(egui_style, style));
*text = &text[1..];
0
} else {
1
};
*access(style) ^= true;
skip
};
if text.starts_with('*') {
skip = apply_basic_style(&mut text, &mut style, |style| &mut style.strong);
} else if text.starts_with('/') {
skip = apply_basic_style(&mut text, &mut style, |style| &mut style.italics);
} else if text.starts_with('_') {
skip = apply_basic_style(&mut text, &mut style, |style| &mut style.underline);
} else if text.starts_with('$') {
skip = apply_basic_style(&mut text, &mut style, |style| &mut style.small);
} else if text.starts_with('~') {
skip = apply_basic_style(&mut text, &mut style, |style| &mut style.strikethrough);
} else if text.starts_with('^') {
skip = apply_basic_style(&mut text, &mut style, |style| &mut style.raised);
} else if text.starts_with('\\') && text.len() >= 2 {
skip = 2;
} else if start_of_line && text.starts_with(' ') {
// we don't preview indentation, because it is confusing
skip = 1;
} else if start_of_line && text.starts_with("###### ") {
style.heading = true;
skip = 7;
} else if start_of_line && text.starts_with("##### ") {
style.heading = true;
skip = 6;
} else if start_of_line && text.starts_with("#### ") {
style.heading = true;
skip = 5;
} else if start_of_line && text.starts_with("### ") {
style.heading = true;
skip = 4;
} else if start_of_line && text.starts_with("## ") {
style.heading = true;
skip = 3;
} else if start_of_line && text.starts_with("# ") {
style.heading = true;
skip = 2;
} else if start_of_line && text.starts_with("> ") {
style.quoted = true;
skip = 2;
// we don't preview indentation, because it is confusing
} else if start_of_line && text.trim_start().starts_with("- ") {
job.append("", 0.0, format_from_style(egui_style, &style));
text = &text[2..];
skip = 0;
// we don't preview indentation, because it is confusing
} else {
skip = 0;
}
// Note: we don't preview underline, strikethrough and italics because it confuses things.
// Swallow everything up to the next special character:
let line_end = text[skip..]
.find('\n')
.map_or_else(|| text.len(), |i| (skip + i + 1));
let end = text[skip..]
.find(&['*', '`', '~', '_', '/', '$', '^', '\\', '<', '['][..])
.map_or_else(|| text.len(), |i| (skip + i).max(1));
if line_end <= end {
job.append(
&text[..line_end],
0.0,
format_from_style(egui_style, &style),
);
text = &text[line_end..];
start_of_line = true;
style = Default::default();
} else {
job.append(&text[..end], 0.0, format_from_style(egui_style, &style));
text = &text[end..];
start_of_line = false;
}
}
job
}
fn format_from_style(
egui_style: &egui::Style,
emark_style: &easy_mark_parser::Style,
) -> egui::text::TextFormat {
use egui::{Align, Color32, Stroke, TextStyle};
let color = if emark_style.strong || emark_style.heading {
egui_style.visuals.strong_text_color()
} else if emark_style.quoted {
egui_style.visuals.weak_text_color()
} else {
egui_style.visuals.text_color()
};
let text_style = if emark_style.heading {
TextStyle::Heading
} else if emark_style.code {
TextStyle::Monospace
} else if emark_style.small | emark_style.raised {
TextStyle::Small
} else {
TextStyle::Body
};
let background = if emark_style.code {
egui_style.visuals.code_bg_color
} else {
Color32::TRANSPARENT
};
let underline = if emark_style.underline {
Stroke::new(1.0, color)
} else {
Stroke::NONE
};
let strikethrough = if emark_style.strikethrough {
Stroke::new(1.0, color)
} else {
Stroke::NONE
};
let valign = if emark_style.raised {
Align::TOP
} else {
Align::BOTTOM
};
egui::text::TextFormat {
font_id: text_style.resolve(egui_style),
color,
background,
italics: emark_style.italics,
underline,
strikethrough,
valign,
..Default::default()
}
}

View File

@ -0,0 +1,346 @@
//! A parser for `EasyMark`: a very simple markup language.
//!
//! WARNING: `EasyMark` is subject to change.
//
//! # `EasyMark` design goals:
//! 1. easy to parse
//! 2. easy to learn
//! 3. similar to markdown
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub enum Item<'a> {
/// `\n`
// TODO(emilk): add Style here so empty heading still uses up the right amount of space.
Newline,
/// Text
Text(Style, &'a str),
/// title, url
Hyperlink(Style, &'a str, &'a str),
/// leading space before e.g. a [`Self::BulletPoint`].
Indentation(usize),
/// >
QuoteIndent,
/// - a point well made.
BulletPoint,
/// 1. numbered list. The string is the number(s).
NumberedPoint(&'a str),
/// ---
Separator,
/// language, code
CodeBlock(&'a str, &'a str),
}
#[derive(Copy, Clone, Debug, Default, Eq, PartialEq)]
pub struct Style {
/// # heading (large text)
pub heading: bool,
/// > quoted (slightly dimmer color or other font style)
pub quoted: bool,
/// `code` (monospace, some other color)
pub code: bool,
/// self.strong* (emphasized, e.g. bold)
pub strong: bool,
/// _underline_
pub underline: bool,
/// ~strikethrough~
pub strikethrough: bool,
/// /italics/
pub italics: bool,
/// $small$
pub small: bool,
/// ^raised^
pub raised: bool,
}
/// Parser for the `EasyMark` markup language.
pub struct Parser<'a> {
/// The remainder of the input text
s: &'a str,
/// Are we at the start of a line?
start_of_line: bool,
/// Current self.style. Reset after a newline.
style: Style,
}
impl<'a> Parser<'a> {
pub fn new(s: &'a str) -> Self {
Self {
s,
start_of_line: true,
style: Style::default(),
}
}
/// `1. `, `42. ` etc.
fn numbered_list(&mut self) -> Option<Item<'a>> {
let n_digits = self.s.chars().take_while(|c| c.is_ascii_digit()).count();
if n_digits > 0 && self.s.chars().skip(n_digits).take(2).eq(". ".chars()) {
let number = &self.s[..n_digits];
self.s = &self.s[(n_digits + 2)..];
self.start_of_line = false;
return Some(Item::NumberedPoint(number));
}
None
}
// ```{language}\n{code}```
fn code_block(&mut self) -> Option<Item<'a>> {
if let Some(language_start) = self.s.strip_prefix("```") {
if let Some(newline) = language_start.find('\n') {
let language = &language_start[..newline];
let code_start = &language_start[newline + 1..];
if let Some(end) = code_start.find("\n```") {
let code = &code_start[..end].trim();
self.s = &code_start[end + 4..];
self.start_of_line = false;
return Some(Item::CodeBlock(language, code));
} else {
self.s = "";
return Some(Item::CodeBlock(language, code_start));
}
}
}
None
}
// `code`
fn inline_code(&mut self) -> Option<Item<'a>> {
if let Some(rest) = self.s.strip_prefix('`') {
self.s = rest;
self.start_of_line = false;
self.style.code = true;
let rest_of_line = &self.s[..self.s.find('\n').unwrap_or(self.s.len())];
if let Some(end) = rest_of_line.find('`') {
let item = Item::Text(self.style, &self.s[..end]);
self.s = &self.s[end + 1..];
self.style.code = false;
return Some(item);
} else {
let end = rest_of_line.len();
let item = Item::Text(self.style, rest_of_line);
self.s = &self.s[end..];
self.style.code = false;
return Some(item);
}
}
None
}
/// `<url>` or `[link](url)`
fn url(&mut self) -> Option<Item<'a>> {
if self.s.starts_with('<') {
let this_line = &self.s[..self.s.find('\n').unwrap_or(self.s.len())];
if let Some(url_end) = this_line.find('>') {
let url = &self.s[1..url_end];
self.s = &self.s[url_end + 1..];
self.start_of_line = false;
return Some(Item::Hyperlink(self.style, url, url));
}
}
// [text](url)
if self.s.starts_with('[') {
let this_line = &self.s[..self.s.find('\n').unwrap_or(self.s.len())];
if let Some(bracket_end) = this_line.find(']') {
let text = &this_line[1..bracket_end];
if this_line[bracket_end + 1..].starts_with('(') {
if let Some(parens_end) = this_line[bracket_end + 2..].find(')') {
let parens_end = bracket_end + 2 + parens_end;
let url = &self.s[bracket_end + 2..parens_end];
self.s = &self.s[parens_end + 1..];
self.start_of_line = false;
return Some(Item::Hyperlink(self.style, text, url));
}
}
}
}
None
}
}
impl<'a> Iterator for Parser<'a> {
type Item = Item<'a>;
fn next(&mut self) -> Option<Self::Item> {
loop {
if self.s.is_empty() {
return None;
}
// \n
if self.s.starts_with('\n') {
self.s = &self.s[1..];
self.start_of_line = true;
self.style = Style::default();
return Some(Item::Newline);
}
// Ignore line break (continue on the same line)
if self.s.starts_with("\\\n") && self.s.len() >= 2 {
self.s = &self.s[2..];
self.start_of_line = false;
continue;
}
// \ escape (to show e.g. a backtick)
if self.s.starts_with('\\') && self.s.len() >= 2 {
let text = &self.s[1..2];
self.s = &self.s[2..];
self.start_of_line = false;
return Some(Item::Text(self.style, text));
}
if self.start_of_line {
// leading space (indentation)
if self.s.starts_with(' ') {
let length = self.s.find(|c| c != ' ').unwrap_or(self.s.len());
self.s = &self.s[length..];
self.start_of_line = true; // indentation doesn't count
return Some(Item::Indentation(length));
}
// # Heading
if let Some(after) = self.s.strip_prefix("# ") {
self.s = after;
self.start_of_line = false;
self.style.heading = true;
continue;
}
// > quote
if let Some(after) = self.s.strip_prefix("> ") {
self.s = after;
self.start_of_line = true; // quote indentation doesn't count
self.style.quoted = true;
return Some(Item::QuoteIndent);
}
// - bullet point
if self.s.starts_with("- ") {
self.s = &self.s[2..];
self.start_of_line = false;
return Some(Item::BulletPoint);
}
// `1. `, `42. ` etc.
if let Some(item) = self.numbered_list() {
return Some(item);
}
// --- separator
if let Some(after) = self.s.strip_prefix("---") {
self.s = after.trim_start_matches('-'); // remove extra dashes
self.s = self.s.strip_prefix('\n').unwrap_or(self.s); // remove trailing newline
self.start_of_line = false;
return Some(Item::Separator);
}
// ```{language}\n{code}```
if let Some(item) = self.code_block() {
return Some(item);
}
}
// `code`
if let Some(item) = self.inline_code() {
return Some(item);
}
if let Some(rest) = self.s.strip_prefix('*') {
self.s = rest;
self.start_of_line = false;
self.style.strong = !self.style.strong;
continue;
}
if let Some(rest) = self.s.strip_prefix('_') {
self.s = rest;
self.start_of_line = false;
self.style.underline = !self.style.underline;
continue;
}
if let Some(rest) = self.s.strip_prefix('~') {
self.s = rest;
self.start_of_line = false;
self.style.strikethrough = !self.style.strikethrough;
continue;
}
if let Some(rest) = self.s.strip_prefix('/') {
self.s = rest;
self.start_of_line = false;
self.style.italics = !self.style.italics;
continue;
}
if let Some(rest) = self.s.strip_prefix('$') {
self.s = rest;
self.start_of_line = false;
self.style.small = !self.style.small;
continue;
}
if let Some(rest) = self.s.strip_prefix('^') {
self.s = rest;
self.start_of_line = false;
self.style.raised = !self.style.raised;
continue;
}
// `<url>` or `[link](url)`
if let Some(item) = self.url() {
return Some(item);
}
// Swallow everything up to the next special character:
let end = self
.s
.find(&['*', '`', '~', '_', '/', '$', '^', '\\', '<', '[', '\n'][..])
.map_or_else(|| self.s.len(), |special| special.max(1));
let item = Item::Text(self.style, &self.s[..end]);
self.s = &self.s[end..];
self.start_of_line = false;
return Some(item);
}
}
}
#[test]
fn test_easy_mark_parser() {
let items: Vec<_> = Parser::new("~strikethrough `code`~").collect();
assert_eq!(
items,
vec![
Item::Text(
Style {
strikethrough: true,
..Default::default()
},
"strikethrough "
),
Item::Text(
Style {
code: true,
strikethrough: true,
..Default::default()
},
"code"
),
]
);
}

7
src/easy_mark/mod.rs Normal file
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@ -0,0 +1,7 @@
//! Experimental markup language
mod easy_mark_highlighter;
pub mod easy_mark_parser;
pub use easy_mark_highlighter::{MemoizedHighlighter, highlight_easymark};
pub use easy_mark_parser as parser;

View File

@ -12,7 +12,7 @@ use egui::{
use crate::{ use crate::{
custom_code_block::{MdItem, iter_lines_and_code_blocks}, custom_code_block::{MdItem, iter_lines_and_code_blocks},
painting::{self, Handwriting, HandwritingStyle}, handwriting::{self, Handwriting, HandwritingStyle},
preferences::Preferences, preferences::Preferences,
text_editor::MdTextEdit, text_editor::MdTextEdit,
}; };
@ -22,12 +22,15 @@ pub struct FileEditor {
title: String, title: String,
pub path: Option<PathBuf>, pub path: Option<PathBuf>,
pub buffer: Vec<BufferItem>, pub buffer: Vec<BufferItem>,
/// Whether the file has been edited since it was laste saved to disk.
pub is_dirty: bool,
} }
#[derive(serde::Deserialize, serde::Serialize)] #[derive(serde::Deserialize, serde::Serialize)]
pub enum BufferItem { pub enum BufferItem {
Text(MdTextEdit), Text(MdTextEdit),
Handwriting(Handwriting), Handwriting(Box<Handwriting>),
} }
impl FileEditor { impl FileEditor {
@ -37,6 +40,7 @@ impl FileEditor {
title: title.into(), title: title.into(),
path: None, path: None,
buffer, buffer,
is_dirty: false,
} }
} }
@ -69,9 +73,11 @@ impl FileEditor {
ui.horizontal(|ui| { ui.horizontal(|ui| {
ui.label("new"); ui.label("new");
if ui.button("text").clicked() { if ui.button("text").clicked() {
self.is_dirty = true;
self.buffer.push(BufferItem::Text(Default::default())); self.buffer.push(BufferItem::Text(Default::default()));
} }
if ui.button("writing").clicked() { if ui.button("writing").clicked() {
self.is_dirty = true;
self.buffer self.buffer
.push(BufferItem::Handwriting(Default::default())); .push(BufferItem::Handwriting(Default::default()));
} }
@ -138,14 +144,18 @@ impl FileEditor {
let item_response = ui.allocate_ui(item_size, |ui| match item { let item_response = ui.allocate_ui(item_size, |ui| match item {
BufferItem::Text(text_edit) => { BufferItem::Text(text_edit) => {
text_edit.ui(ui); if text_edit.ui(ui).changed {
self.is_dirty = true;
} }
BufferItem::Handwriting(painting) => { }
BufferItem::Handwriting(handwriting) => {
let style = HandwritingStyle { let style = HandwritingStyle {
animate: preferences.animations, animate: preferences.animations,
..HandwritingStyle::from_theme(ui.ctx().theme()) ..HandwritingStyle::from_theme(ui.ctx().theme())
}; };
painting.ui(&style, ui); if handwriting.ui(&style, ui).changed {
self.is_dirty = true;
}
} }
}); });
@ -211,10 +221,12 @@ impl FileEditor {
Ordering::Greater => { Ordering::Greater => {
let item = self.buffer.remove(from); let item = self.buffer.remove(from);
self.buffer.insert(to, item); self.buffer.insert(to, item);
self.is_dirty = true;
} }
Ordering::Less => { Ordering::Less => {
let item = self.buffer.remove(from); let item = self.buffer.remove(from);
self.buffer.insert(to - 1, item); self.buffer.insert(to - 1, item);
self.is_dirty = true;
} }
Ordering::Equal => {} Ordering::Equal => {}
} }
@ -275,7 +287,7 @@ impl From<&str> for FileEditor {
match item { match item {
MdItem::Line(line) => push_text(buffer, line), MdItem::Line(line) => push_text(buffer, line),
MdItem::CodeBlock { key, content, span } => match key { MdItem::CodeBlock { key, content, span } => match key {
painting::CODE_BLOCK_KEY => match Handwriting::from_str(span) { handwriting::CODE_BLOCK_KEY => match Handwriting::from_str(span) {
Ok(handwriting) => { Ok(handwriting) => {
if let Some(BufferItem::Text(text_edit)) = buffer.last_mut() { if let Some(BufferItem::Text(text_edit)) = buffer.last_mut() {
if text_edit.text.ends_with('\n') { if text_edit.text.ends_with('\n') {
@ -285,7 +297,7 @@ impl From<&str> for FileEditor {
} }
} }
}; };
buffer.push(BufferItem::Handwriting(handwriting)) buffer.push(BufferItem::Handwriting(Box::new(handwriting)))
} }
Err(e) => { Err(e) => {
log::error!("Failed to decode handwriting {content:?}: {e}"); log::error!("Failed to decode handwriting {content:?}: {e}");

218
src/folder.rs Normal file
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@ -0,0 +1,218 @@
use std::{
fs::read_dir,
mem,
ops::Deref,
path::{Path, PathBuf},
sync::mpsc,
thread,
};
use egui::{Response, Ui};
use eyre::{Context, OptionExt, eyre};
use serde::{Deserialize, Serialize};
pub enum Folder {
NotLoaded {
name: String,
path: PathBuf,
},
Loading {
name: String,
path: PathBuf,
recv: mpsc::Receiver<LoadedFolder>,
},
Loaded(LoadedFolder),
}
pub struct LoadedFolder {
pub name: String,
pub path: PathBuf,
pub child_folders: Vec<Folder>,
pub child_files: Vec<File>,
}
pub struct File {
pub name: String,
pub path: PathBuf,
}
pub struct FolderResponse<'a> {
inner: Response,
pub open_file: Option<&'a Path>,
}
impl Deref for FolderResponse<'_> {
type Target = Response;
fn deref(&self) -> &Self::Target {
&self.inner
}
}
impl LoadedFolder {
pub fn show<'a>(&'a mut self, ui: &mut Ui) -> FolderResponse<'a> {
let mut open_file = None;
let inner = ui
.collapsing(&self.name, |ui| {
for folder in &mut self.child_folders {
open_file = open_file.or(folder.show(ui).open_file);
}
for file in &mut self.child_files {
if ui.button(&file.name).clicked() {
open_file = Some(file.path.as_path())
};
}
})
.header_response;
FolderResponse { inner, open_file }
}
fn load(path: PathBuf) -> eyre::Result<Self> {
let name = path
.file_name()
.ok_or_eyre("Path is missing a file-name")?
.to_string_lossy()
.to_string();
let mut child_folders = vec![];
let mut child_files = vec![];
for entry in read_dir(&path).with_context(|| eyre!("Couldn't read dir {path:?}"))? {
let entry = entry.with_context(|| eyre!("Couldn't read dir {path:?}"))?;
let path = entry.path();
let name = path
.file_name()
.ok_or_eyre("Path is missing a file-name")?
.to_string_lossy()
.to_string();
let file_type = entry.file_type()?;
if file_type.is_symlink() {
log::error!("Symlinks not yet supported, skipping {path:?}");
continue;
} else if file_type.is_file() {
child_files.push(File { name, path });
} else if file_type.is_dir() {
child_folders.push(Folder::NotLoaded { name, path });
}
}
let folder = LoadedFolder {
name,
path,
child_folders,
child_files,
};
Ok(folder)
}
}
impl Folder {
fn load(&mut self, ui: &mut Ui) -> Option<&mut LoadedFolder> {
if let Folder::NotLoaded { name, path } = self {
let (tx, rx) = mpsc::channel();
{
let path = path.clone();
let ctx = ui.ctx().clone();
thread::spawn(move || match LoadedFolder::load(path) {
Err(e) => log::error!("Failed to load folder: {e}"),
Ok(folder) => {
let _ = tx.send(folder);
ctx.request_repaint();
}
});
}
*self = Folder::Loading {
name: mem::take(name),
path: mem::take(path),
recv: rx,
};
}
if let Folder::Loading { recv, .. } = self {
match recv.try_recv() {
Ok(folder) => *self = Folder::Loaded(folder),
Err(_) => return None,
}
}
let Folder::Loaded(folder) = self else {
unreachable!()
};
Some(folder)
}
pub fn show<'a>(&'a mut self, ui: &mut Ui) -> FolderResponse<'a> {
self.load(ui);
if let Folder::Loaded(folder) = self {
return folder.show(ui);
}
FolderResponse {
inner: ui.label(self.name()),
open_file: None,
}
}
pub fn path(&self) -> &Path {
match self {
Folder::NotLoaded { path, .. } => path,
Folder::Loading { path, .. } => path,
Folder::Loaded(folder) => &folder.path,
}
}
pub fn name(&self) -> &str {
match self {
Folder::NotLoaded { name, .. } => name,
Folder::Loading { name, .. } => name,
Folder::Loaded(folder) => &folder.name,
}
}
pub fn unload(&mut self) {
let (name, path) = match self {
Folder::NotLoaded { .. } => return,
Folder::Loading { name, path, .. } => (name, path),
Folder::Loaded(folder) => (&mut folder.name, &mut folder.path),
};
*self = Folder::NotLoaded {
name: mem::take(name),
path: mem::take(path),
}
}
}
impl Serialize for Folder {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
self.path().serialize(serializer)
}
}
impl<'de> Deserialize<'de> for Folder {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: serde::Deserializer<'de>,
{
use serde::de::Error;
let path = PathBuf::deserialize(deserializer)?;
let name = path
.file_name()
.ok_or(D::Error::custom("Path is missing a file-name"))?
.to_string_lossy()
.to_string();
Ok(Folder::NotLoaded { name, path })
}
}

File diff suppressed because one or more lines are too long

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@ -0,0 +1,97 @@
//! see [Packet]
use std::fmt::Display;
use half::f16;
use zerocopy::{FromBytes, Immutable, IntoBytes, KnownLayout};
/// A `u16` encoded in little-endian.
#[allow(non_camel_case_types)]
#[derive(Clone, Copy, FromBytes, IntoBytes, KnownLayout, Immutable, PartialEq, Eq)]
#[repr(C, packed)]
pub struct u16_le([u8; 2]);
/// An `f16` encoded in little-endian.
#[allow(non_camel_case_types)]
#[derive(Clone, Copy, FromBytes, IntoBytes, KnownLayout, Immutable)]
#[repr(C, packed)]
pub struct f16_le(u16_le);
/// Top-level type describing the handwriting disk-format.
#[derive(FromBytes, KnownLayout, Immutable)]
#[repr(C, packed)]
pub struct DiskFormat {
pub header: Header,
/// A packed array of [Stroke]s.
pub strokes: [u8],
}
pub const V1: u16_le = u16_le::new(1);
#[derive(FromBytes, IntoBytes, KnownLayout, Immutable)]
#[repr(C, packed)]
pub struct Header {
/// Version of the disk format
pub version: u16_le,
}
#[derive(FromBytes, IntoBytes, KnownLayout, Immutable)]
#[repr(C, packed)]
pub struct RawStrokeHeader {
/// Number of points in the stroke.
pub len: u16_le,
}
#[derive(FromBytes, KnownLayout, Immutable)]
#[repr(C, packed)]
pub struct RawStroke {
pub header: RawStrokeHeader,
pub positions: [f16_le],
}
impl RawStroke {
pub const MIN_LEN: usize = size_of::<RawStrokeHeader>();
}
impl u16_le {
pub const fn new(init: u16) -> Self {
u16_le(init.to_le_bytes())
}
}
impl f16_le {
pub const fn new(init: f16) -> Self {
f16_le(u16_le::new(init.to_bits()))
}
}
impl Display for u16_le {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
u16::from(*self).fmt(f)
}
}
impl From<u16_le> for u16 {
fn from(value: u16_le) -> Self {
u16::from_le_bytes(value.0)
}
}
impl From<f16_le> for f16 {
fn from(value: f16_le) -> Self {
f16::from_bits(u16::from(value.0))
}
}
impl From<u16> for u16_le {
fn from(value: u16) -> Self {
u16_le::new(value)
}
}
impl From<f16> for f16_le {
fn from(value: f16) -> Self {
f16_le::new(value)
}
}

View File

@ -6,6 +6,7 @@ use std::{
}; };
use base64::{Engine, prelude::BASE64_STANDARD}; use base64::{Engine, prelude::BASE64_STANDARD};
use disk_format::{DiskFormat, RawStroke, RawStrokeHeader, f16_le};
use egui::{ use egui::{
Color32, ColorImage, CornerRadius, Event, Frame, Id, Mesh, PointerButton, Pos2, Rect, Sense, Color32, ColorImage, CornerRadius, Event, Frame, Id, Mesh, PointerButton, Pos2, Rect, Sense,
Shape, Stroke, TextureHandle, Theme, Ui, Vec2, Shape, Stroke, TextureHandle, Theme, Ui, Vec2,
@ -16,7 +17,7 @@ use egui::{
use eyre::{Context, bail}; use eyre::{Context, bail};
use eyre::{OptionExt, eyre}; use eyre::{OptionExt, eyre};
use half::f16; use half::f16;
use zerocopy::{FromBytes, Immutable, IntoBytes, KnownLayout}; use zerocopy::{FromBytes, IntoBytes};
use crate::{ use crate::{
custom_code_block::try_from_custom_code_block, custom_code_block::try_from_custom_code_block,
@ -24,6 +25,8 @@ use crate::{
}; };
use crate::{custom_code_block::write_custom_code_block, util::random_id}; use crate::{custom_code_block::write_custom_code_block, util::random_id};
mod disk_format;
const HANDWRITING_MIN_HEIGHT: f32 = 100.0; const HANDWRITING_MIN_HEIGHT: f32 = 100.0;
const HANDWRITING_BOTTOM_PADDING: f32 = 80.0; const HANDWRITING_BOTTOM_PADDING: f32 = 80.0;
const HANDWRITING_MARGIN: f32 = 0.05; const HANDWRITING_MARGIN: f32 = 0.05;
@ -33,7 +36,7 @@ pub const CODE_BLOCK_KEY: &str = "handwriting";
type StrokeBlendMode = rasterizer::blend::Normal; type StrokeBlendMode = rasterizer::blend::Normal;
const TESSELATION_OPTIONS: TessellationOptions = TessellationOptions { const TESSELLATION_OPTIONS: TessellationOptions = TessellationOptions {
feathering: true, feathering: true,
feathering_size_in_pixels: 1.0, feathering_size_in_pixels: 1.0,
coarse_tessellation_culling: true, coarse_tessellation_culling: true,
@ -60,40 +63,44 @@ pub struct HandwritingStyle {
#[derive(serde::Deserialize, serde::Serialize)] #[derive(serde::Deserialize, serde::Serialize)]
#[serde(default)] #[serde(default)]
pub struct Handwriting { pub struct Handwriting {
#[serde(skip, default = "random_id")]
id: Id,
strokes: Vec<Vec<Pos2>>, strokes: Vec<Vec<Pos2>>,
/// The stroke that is currently being drawed.
#[serde(skip)]
current_stroke: Vec<Pos2>,
/// The lines that have not been blitted to `texture` yet.
#[serde(skip)]
unblitted_lines: Vec<[Pos2; 2]>,
height: f32, height: f32,
desired_height: f32, desired_height: f32,
/// Tesselated mesh of all strokes
#[serde(skip)] #[serde(skip)]
e: Ephemeral,
}
/// Handwriting data that isn't persisted across restarts.
struct Ephemeral {
id: Id,
/// The stroke that is currently being drawed.
current_stroke: Vec<Pos2>,
/// The lines that have not been blitted to `texture` yet.
unblitted_lines: Vec<[Pos2; 2]>,
tessellator: Option<Tessellator>,
/// Tessellated mesh of all strokes
mesh: Arc<Mesh>, mesh: Arc<Mesh>,
#[serde(skip)]
texture: Option<TextureHandle>, texture: Option<TextureHandle>,
#[serde(skip)]
image: ColorImage, image: ColorImage,
#[serde(skip)]
refresh_texture: bool, refresh_texture: bool,
/// Context of the last mesh render. /// Context of the last mesh render.
#[serde(skip)]
last_mesh_ctx: Option<MeshContext>, last_mesh_ctx: Option<MeshContext>,
} }
pub struct HandwritingResponse {
pub changed: bool,
}
/// Context of a mesh render. /// Context of a mesh render.
#[derive(Clone, Copy, PartialEq)] #[derive(Clone, Copy, PartialEq)]
struct MeshContext { struct MeshContext {
@ -144,11 +151,20 @@ impl MeshContext {
impl Default for Handwriting { impl Default for Handwriting {
fn default() -> Self { fn default() -> Self {
Self { Self {
id: random_id(),
strokes: Default::default(), strokes: Default::default(),
current_stroke: Default::default(),
height: HANDWRITING_MIN_HEIGHT, height: HANDWRITING_MIN_HEIGHT,
desired_height: HANDWRITING_MIN_HEIGHT, desired_height: HANDWRITING_MIN_HEIGHT,
e: Default::default(),
}
}
}
impl Default for Ephemeral {
fn default() -> Self {
Self {
id: random_id(),
current_stroke: Default::default(),
tessellator: None,
mesh: Default::default(), mesh: Default::default(),
texture: None, texture: None,
image: ColorImage::new([0, 0], Color32::WHITE), image: ColorImage::new([0, 0], Color32::WHITE),
@ -164,6 +180,7 @@ impl Handwriting {
&mut self, &mut self,
style: Option<&mut HandwritingStyle>, style: Option<&mut HandwritingStyle>,
ui: &mut egui::Ui, ui: &mut egui::Ui,
response: &mut HandwritingResponse,
) -> egui::Response { ) -> egui::Response {
ui.horizontal(|ui| { ui.horizontal(|ui| {
if let Some(style) = style { if let Some(style) = style {
@ -172,33 +189,35 @@ impl Handwriting {
ui.separator(); ui.separator();
} }
if ui.button("Clear Painting").clicked() { if ui.button("clear").clicked() {
self.strokes.clear(); self.strokes.clear();
self.refresh_texture = true; self.e.refresh_texture = true;
response.changed = true;
} }
ui.add_enabled_ui(!self.strokes.is_empty(), |ui| { ui.add_enabled_ui(!self.strokes.is_empty(), |ui| {
if ui.button("Undo").clicked() { if ui.button("undo").clicked() {
self.strokes.pop(); self.strokes.pop();
self.refresh_texture = true; self.e.refresh_texture = true;
response.changed = true;
} }
}); });
let vertex_count: usize = self.mesh.indices.len() / 3; let vertex_count: usize = self.e.mesh.indices.len() / 3;
ui.label(format!("vertices: {vertex_count}")); ui.label(format!("vertices: {vertex_count}"));
}) })
.response .response
} }
fn commit_current_line(&mut self) { pub fn ui_content(
debug_assert!(!self.current_stroke.is_empty()); &mut self,
self.strokes.push(mem::take(&mut self.current_stroke)); style: &HandwritingStyle,
} ui: &mut Ui,
hw_response: &mut HandwritingResponse,
pub fn ui_content(&mut self, style: &HandwritingStyle, ui: &mut Ui) -> egui::Response { ) -> egui::Response {
if style.animate { if style.animate {
self.height = ui.ctx().animate_value_with_time( self.height = ui.ctx().animate_value_with_time(
self.id.with("height animation"), self.e.id.with("height animation"),
self.desired_height, self.desired_height,
0.4, 0.4,
); );
@ -206,8 +225,8 @@ impl Handwriting {
self.height = self.desired_height; self.height = self.desired_height;
} }
let size = Vec2::new(ui.available_width(), self.height); let desired_size = Vec2::new(ui.available_width(), self.height);
let (response, painter) = ui.allocate_painter(size, Sense::drag()); let (response, painter) = ui.allocate_painter(desired_size, Sense::drag());
let mut response = response let mut response = response
//.on_hover_cursor(CursorIcon::Crosshair) //.on_hover_cursor(CursorIcon::Crosshair)
@ -216,20 +235,24 @@ impl Handwriting {
let size = response.rect.size(); let size = response.rect.size();
let to_screen = emath::RectTransform::from_to( // Calculate matrices that convert between screen-space and image-space.
//Rect::from_min_size(Pos2::ZERO, response.rect.square_proportions()), // - image-space: 0,0 is the top-left of the texture.
Rect::from_min_size(Pos2::ZERO, size), // - screen-space: 0,0 is the top-left of the window.
response.rect, // Both spaces use the same logical points, not pixels.
); let to_screen =
emath::RectTransform::from_to(Rect::from_min_size(Pos2::ZERO, size), response.rect);
let from_screen = to_screen.inverse(); let from_screen = to_screen.inverse();
// Was the user in the process of drawing a stroke last frame?
let was_drawing = !self.e.current_stroke.is_empty();
// Is the user in the process of drawing a stroke now?
let is_drawing = response.interact_pointer_pos().is_some(); let is_drawing = response.interact_pointer_pos().is_some();
let was_drawing = !self.current_stroke.is_empty();
if !is_drawing { if !is_drawing {
// commit current line
if was_drawing { if was_drawing {
self.commit_current_line(); // commit current line
self.commit_current_line(hw_response);
response.mark_changed(); response.mark_changed();
} }
@ -241,6 +264,8 @@ impl Handwriting {
.map(|p| p.y + HANDWRITING_BOTTOM_PADDING) .map(|p| p.y + HANDWRITING_BOTTOM_PADDING)
.fold(HANDWRITING_MIN_HEIGHT, |max, y| max.max(y)); .fold(HANDWRITING_MIN_HEIGHT, |max, y| max.max(y));
// Change the height of the handwriting item.
// We don't do this mid-stroke, only when the user e.g. lifts the pen.
if self.desired_height != lines_max_y { if self.desired_height != lines_max_y {
self.desired_height = lines_max_y; self.desired_height = lines_max_y;
response.mark_changed(); response.mark_changed();
@ -267,16 +292,17 @@ impl Handwriting {
_ => Some(next), _ => Some(next),
} }
}) })
.cloned()
.filter(|event| { .filter(|event| {
// FIXME: pinenote: PointerMoved are duplicated after the MouseMoved events // FIXME: pinenote: PointerMoved are duplicated after the MouseMoved events
cfg!(not(feature = "pinenote")) || !matches!(event, Event::PointerMoved(..)) cfg!(not(feature = "pinenote")) || !matches!(event, Event::PointerMoved(..))
}) })
.cloned()
.collect::<Vec<_>>() .collect::<Vec<_>>()
}); });
// Process input events and turn them into strokes
for event in events { for event in events {
let last_canvas_pos = self.current_stroke.last(); let last_canvas_pos = self.e.current_stroke.last();
match event { match event {
Event::PointerMoved(new_position) => { Event::PointerMoved(new_position) => {
@ -318,13 +344,13 @@ impl Handwriting {
} => match (button, pressed) { } => match (button, pressed) {
(PointerButton::Primary, true) => { (PointerButton::Primary, true) => {
if last_canvas_pos.is_none() { if last_canvas_pos.is_none() {
self.current_stroke.push(from_screen * pos); self.e.current_stroke.push(from_screen * pos);
} }
} }
(PointerButton::Primary, false) => { (PointerButton::Primary, false) => {
if last_canvas_pos.is_some() { if last_canvas_pos.is_some() {
self.push_to_stroke(from_screen * pos); self.push_to_stroke(from_screen * pos);
self.commit_current_line(); self.commit_current_line(hw_response);
response.mark_changed(); response.mark_changed();
} }
@ -340,8 +366,8 @@ impl Handwriting {
// TODO: In theory, we can get multiple press->draw->release series // TODO: In theory, we can get multiple press->draw->release series
// in the same frame. Should handle this. // in the same frame. Should handle this.
Event::PointerGone | Event::WindowFocused(false) => { Event::PointerGone | Event::WindowFocused(false) => {
if !self.current_stroke.is_empty() { if !self.e.current_stroke.is_empty() {
self.commit_current_line(); self.commit_current_line(hw_response);
break; break;
} }
} }
@ -361,6 +387,7 @@ impl Handwriting {
} }
} }
// Draw the horizontal ruled lines
(1..) (1..)
.map(|n| n as f32 * HANDWRITING_LINE_SPACING) .map(|n| n as f32 * HANDWRITING_LINE_SPACING)
.take_while(|&y| y < size.y) .take_while(|&y| y < size.y)
@ -373,9 +400,12 @@ impl Handwriting {
painter.add(shape); painter.add(shape);
}); });
// Get the dimensions of the image
let mesh_rect = response let mesh_rect = response
.rect .rect
.with_max_y(response.rect.min.y + self.desired_height); .with_max_y(response.rect.min.y + self.desired_height);
// These are the values that, if changed, would require the mesh to be re-rendered.
let new_context = MeshContext { let new_context = MeshContext {
ui_theme: ui.ctx().theme(), ui_theme: ui.ctx().theme(),
pixels_per_point: ui.pixels_per_point(), pixels_per_point: ui.pixels_per_point(),
@ -383,25 +413,26 @@ impl Handwriting {
stroke: style.stroke, stroke: style.stroke,
}; };
if Some(&new_context) != self.last_mesh_ctx.as_ref() { // Figure out if we need to re-rasterize the mesh.
self.refresh_texture = true; if Some(&new_context) != self.e.last_mesh_ctx.as_ref() {
self.e.refresh_texture = true;
} }
if self.refresh_texture { if self.e.refresh_texture {
// rasterize the entire texture from scratch // ...if we do, rasterize the entire texture from scratch
self.refresh_texture(style, new_context, ui); self.refresh_texture(style, new_context, ui);
self.unblitted_lines.clear(); self.e.unblitted_lines.clear();
} else if !self.unblitted_lines.is_empty() { } else if !self.e.unblitted_lines.is_empty() {
// only rasterize the new lines onto the existing texture // ...if we don't, we can get away with only rasterizing the *new* lines onto the
for [from, to] in std::mem::take(&mut self.unblitted_lines) { // existing texture.
for [from, to] in std::mem::take(&mut self.e.unblitted_lines) {
self.draw_line_to_texture(from, to, &new_context, ui); self.draw_line_to_texture(from, to, &new_context, ui);
} }
self.unblitted_lines.clear(); self.e.unblitted_lines.clear();
} }
//painter.add(self.mesh.clone()); // Draw the texture
if let Some(texture) = &self.e.texture {
if let Some(texture) = &self.texture {
let texture = SizedTexture::new(texture.id(), texture.size_vec2()); let texture = SizedTexture::new(texture.id(), texture.size_vec2());
let shape = RectShape { let shape = RectShape {
rect: mesh_rect, rect: mesh_rect,
@ -425,59 +456,81 @@ impl Handwriting {
response response
} }
fn commit_current_line(&mut self, response: &mut HandwritingResponse) {
debug_assert!(!self.e.current_stroke.is_empty());
self.strokes.push(mem::take(&mut self.e.current_stroke));
response.changed = true;
}
/// Tessellate and rasterize the strokes into a new texture.
fn refresh_texture( fn refresh_texture(
&mut self, &mut self,
style: &HandwritingStyle, style: &HandwritingStyle,
mesh_context: MeshContext, mesh_context: MeshContext,
ui: &mut Ui, ui: &mut Ui,
) { ) {
self.last_mesh_ctx = Some(mesh_context); let Ephemeral {
current_stroke,
tessellator,
mesh,
refresh_texture,
last_mesh_ctx,
..
} = &mut self.e;
// TODO: don't tessellate and rasterize on the GUI thread
self.refresh_texture = false; *last_mesh_ctx = Some(mesh_context);
*refresh_texture = false;
#[cfg(not(target_arch = "wasm32"))] #[cfg(not(target_arch = "wasm32"))]
let start_time = std::time::Instant::now(); let start_time = std::time::Instant::now();
let mut tesselator = Tessellator::new( let mesh = Arc::make_mut(mesh);
mesh_context.pixels_per_point,
TESSELATION_OPTIONS,
Default::default(), // we don't tesselate fonts
vec![],
);
let mesh = Arc::make_mut(&mut self.mesh);
mesh.clear(); mesh.clear();
// TODO: re-use tessellator if pixels_per_point hasn't changed
let tessellator = tessellator.insert(new_tessellator(mesh_context.pixels_per_point));
self.strokes self.strokes
.iter() .iter()
.chain([&self.current_stroke]) .chain([&*current_stroke])
.filter(|stroke| stroke.len() >= 2) .filter(|stroke| stroke.len() >= 2)
.map(|stroke| { .map(|stroke| {
//let points: Vec<Pos2> = stroke.iter().map(|&p| to_screen * p).collect(); //let points: Vec<Pos2> = stroke.iter().map(|&p| to_screen * p).collect();
egui::Shape::line(stroke.clone(), style.stroke) egui::Shape::line(stroke.clone(), style.stroke)
}) })
.for_each(|shape| { .for_each(|shape| {
tesselator.tessellate_shape(shape, mesh); tessellator.tessellate_shape(shape, mesh);
}); });
let texture = texture!(self, ui, &mesh_context); // sanity-check that tessellation did not produce any NaNs.
let triangles = mesh_triangles(&self.mesh); // this can happen if the line contains duplicated consecutive positions
//for vertex in &mesh.vertices {
// debug_assert!(vertex.pos.x.is_finite(), "{} must be finite", vertex.pos.x);
// debug_assert!(vertex.pos.y.is_finite(), "{} must be finite", vertex.pos.y);
//}
let texture = texture!(self.e, ui, &mesh_context);
let triangles = mesh_triangles(&self.e.mesh);
let [px_x, px_y] = mesh_context.pixel_size(); let [px_x, px_y] = mesh_context.pixel_size();
let point_to_pixel = TSTransform::from_scaling(mesh_context.pixels_per_point); let point_to_pixel = TSTransform::from_scaling(mesh_context.pixels_per_point);
self.image = rasterize::<StrokeBlendMode>(px_x, px_y, point_to_pixel, triangles); self.e.image = rasterize::<StrokeBlendMode>(px_x, px_y, point_to_pixel, triangles);
texture.set(self.image.clone(), Default::default()); texture.set(self.e.image.clone(), Default::default());
#[cfg(not(target_arch = "wasm32"))] #[cfg(not(target_arch = "wasm32"))]
{ {
let elapsed = start_time.elapsed(); let elapsed = start_time.elapsed();
println!("refreshed mesh in {:.3}s", elapsed.as_secs_f32()); log::debug!("refreshed mesh in {:.3}s", elapsed.as_secs_f32());
} }
} }
pub fn ui(&mut self, style: &HandwritingStyle, ui: &mut Ui) { pub fn ui(&mut self, style: &HandwritingStyle, ui: &mut Ui) -> HandwritingResponse {
let mut response = HandwritingResponse { changed: false };
ui.vertical_centered_justified(|ui| { ui.vertical_centered_justified(|ui| {
self.ui_control(None, ui); self.ui_control(None, ui, &mut response);
//ui.label("Paint with your mouse/touch!"); //ui.label("Paint with your mouse/touch!");
Frame::canvas(ui.style()) Frame::canvas(ui.style())
@ -485,21 +538,28 @@ impl Handwriting {
.stroke(Stroke::new(5.0, Color32::from_black_alpha(40))) .stroke(Stroke::new(5.0, Color32::from_black_alpha(40)))
.fill(style.bg_color) .fill(style.bg_color)
.show(ui, |ui| { .show(ui, |ui| {
self.ui_content(style, ui); self.ui_content(style, ui, &mut response);
}); });
}); });
response
} }
/// Append a new [Pos2] to [Self::current_stroke].
///
/// Queue a new line to be drawn onto [Self::texture].
fn push_to_stroke(&mut self, new_canvas_pos: Pos2) { fn push_to_stroke(&mut self, new_canvas_pos: Pos2) {
if let Some(&last_canvas_pos) = self.current_stroke.last() { if let Some(&last_canvas_pos) = self.e.current_stroke.last() {
if last_canvas_pos == new_canvas_pos { if last_canvas_pos == new_canvas_pos {
return; return;
} }
self.unblitted_lines.push([last_canvas_pos, new_canvas_pos]); self.e
.unblitted_lines
.push([last_canvas_pos, new_canvas_pos]);
} }
self.current_stroke.push(new_canvas_pos); self.e.current_stroke.push(new_canvas_pos);
} }
/// Draw a single line onto the existing texture. /// Draw a single line onto the existing texture.
@ -510,16 +570,16 @@ impl Handwriting {
mesh_context: &MeshContext, mesh_context: &MeshContext,
ui: &mut Ui, ui: &mut Ui,
) { ) {
let mut tesselator = Tessellator::new( // INVARIANT: if this function was called, then pixels_per_point is the same as last frame,
mesh_context.pixels_per_point, // so there's no need to create a new tessellator.
TESSELATION_OPTIONS, let tessellator = self
Default::default(), // we don't tesselate fonts .e
vec![], .tessellator
); .get_or_insert_with(|| new_tessellator(mesh_context.pixels_per_point));
let mut mesh = Mesh::default(); let mut mesh = Mesh::default();
let line = egui::Shape::line_segment([from, to], mesh_context.stroke); let line = egui::Shape::line_segment([from, to], mesh_context.stroke);
tesselator.tessellate_shape(line, &mut mesh); tessellator.tessellate_shape(line, &mut mesh);
self.draw_mesh_to_texture(&mesh, mesh_context, ui); self.draw_mesh_to_texture(&mesh, mesh_context, ui);
} }
@ -528,8 +588,8 @@ impl Handwriting {
fn draw_mesh_to_texture(&mut self, mesh: &Mesh, mesh_context: &MeshContext, ui: &mut Ui) { fn draw_mesh_to_texture(&mut self, mesh: &Mesh, mesh_context: &MeshContext, ui: &mut Ui) {
let triangles = mesh_triangles(mesh); let triangles = mesh_triangles(mesh);
let point_to_pixel = TSTransform::from_scaling(mesh_context.pixels_per_point); let point_to_pixel = TSTransform::from_scaling(mesh_context.pixels_per_point);
rasterize_onto::<StrokeBlendMode>(&mut self.image, point_to_pixel, triangles); rasterize_onto::<StrokeBlendMode>(&mut self.e.image, point_to_pixel, triangles);
texture!(self, ui, mesh_context).set(self.image.clone(), Default::default()); texture!(self.e, ui, mesh_context).set(self.e.image.clone(), Default::default());
} }
pub fn strokes(&self) -> &[Vec<Pos2>] { pub fn strokes(&self) -> &[Vec<Pos2>] {
@ -557,24 +617,49 @@ impl Handwriting {
..Default::default() ..Default::default()
} }
} }
pub fn encode_as_disk_format(&self) -> Box<[u8]> {
let mut bytes = vec![];
let header = disk_format::Header {
version: disk_format::V1,
};
bytes.extend_from_slice(header.as_bytes());
for stroke in &self.strokes {
let Ok(len) = u16::try_from(stroke.len()) else {
log::error!("More than u16::MAX points in a stroke!");
continue;
};
let header = RawStrokeHeader { len: len.into() };
bytes.extend_from_slice(header.as_bytes());
for position in stroke {
for v in [position.x, position.y] {
let v = f16::from_f32(v);
let v = f16_le::from(v);
bytes.extend_from_slice(v.as_bytes());
}
}
}
bytes.into_boxed_slice()
}
}
fn new_tessellator(pixels_per_point: f32) -> Tessellator {
Tessellator::new(
pixels_per_point,
TESSELLATION_OPTIONS,
Default::default(), // we don't tessellate fonts
vec![],
)
} }
impl Display for Handwriting { impl Display for Handwriting {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let mut raw = vec![]; let raw = self.encode_as_disk_format();
for stroke in &self.strokes {
raw.push((stroke.len() as u16).to_le_bytes());
for position in stroke {
let x = half::f16::from_f32(position.x);
let y = half::f16::from_f32(position.y);
raw.push(x.to_bits().to_le_bytes());
raw.push(y.to_bits().to_le_bytes());
}
}
let raw = raw.as_slice().as_bytes();
write_custom_code_block(f, CODE_BLOCK_KEY, BASE64_STANDARD.encode(raw)) write_custom_code_block(f, CODE_BLOCK_KEY, BASE64_STANDARD.encode(raw))
} }
} }
@ -590,53 +675,72 @@ impl FromStr for Handwriting {
.decode(s) .decode(s)
.wrap_err("Failed to decode painting data from base64")?; .wrap_err("Failed to decode painting data from base64")?;
#[allow(non_camel_case_types)] // HACK: first iteration of disk format did not have version header
type u16_le = [u8; 2]; //let mut bytes = bytes;
//bytes.insert(0, 0);
//bytes.insert(0, 1);
#[allow(non_camel_case_types)] let disk_format = DiskFormat::ref_from_bytes(&bytes[..]).map_err(|_| eyre!("Too short"))?;
type f16_le = [u8; 2];
#[derive(FromBytes, KnownLayout, Immutable)] if disk_format.header.version != disk_format::V1 {
#[repr(C, packed)] bail!(
struct Stroke { "Unknown disk_format version: {}",
pub len: u16_le, disk_format.header.version
pub positions: [f16_le], );
} }
let mut bytes = &bytes[..]; let mut raw_strokes = &disk_format.strokes[..];
let mut strokes = vec![]; let mut strokes = vec![];
while !bytes.is_empty() { while !raw_strokes.is_empty() {
let header_len = size_of::<u16_le>(); if raw_strokes.len() < RawStroke::MIN_LEN {
if bytes.len() < header_len { bail!("Invalid remaining length: {}", raw_strokes.len());
bail!("Invalid remaining length: {}", bytes.len());
} }
let stroke = Stroke::ref_from_bytes(&bytes[..header_len]).expect("length is correct"); let stroke = RawStroke::ref_from_bytes(&raw_strokes[..RawStroke::MIN_LEN])
let len = usize::from(u16::from_le_bytes(stroke.len)); .expect("length is correct");
let len = len * size_of::<f16_le>() * 2;
if bytes.len() < len { // get length as number of points
bail!("Invalid remaining length: {}", bytes.len()); let len = usize::from(u16::from(stroke.header.len));
// convert to length in bytes
let byte_len = 2 * size_of::<f16_le>() * len;
if raw_strokes.len() < byte_len {
bail!("Invalid remaining length: {}", raw_strokes.len());
} }
let (stroke, rest) = bytes.split_at(header_len + len); let (stroke, rest) = raw_strokes.split_at(RawStroke::MIN_LEN + byte_len);
bytes = rest; raw_strokes = rest;
let stroke = Stroke::ref_from_bytes(stroke)
.map_err(|e| eyre!("Failed to decode stroke bytes: {e}"))?;
let mut positions = stroke let stroke = RawStroke::ref_from_bytes(stroke).expect("length is correct");
debug_assert_eq!(
stroke.positions.len().rem_euclid(2),
0,
"{} must be divisible by 2",
stroke.positions.len()
);
debug_assert_eq!(stroke.positions.len(), len * 2);
let mut last_pos = Pos2::new(f32::NEG_INFINITY, f32::INFINITY);
// positions are encoded as an array of f16s [x, y, x, y, x, y, ..]
let stroke: Vec<Pos2> = stroke
.positions .positions
.iter() .chunks_exact(2)
.map(|&position| f16::from_bits(u16::from_le_bytes(position))); .map(|chunk| [chunk[0], chunk[1]])
.map(|pos| pos.map(f16::from)) // interpret bytes as f16
.map(|pos| pos.map(f32::from)) // widen to f32
.filter(|pos| pos.iter().all(|f| f.is_finite())) // filter out NaNs and Infs
.map(|[x, y]| Pos2::new(x, y))
.filter(|pos| {
let is_duplicate = pos == &last_pos;
last_pos = *pos;
!is_duplicate // skip duplicates
})
.collect();
let mut stroke = vec![];
while let Some(x) = positions.next() {
let Some(y) = positions.next() else {
unreachable!("len is a multiple of two");
};
stroke.push(Pos2::new(x.into(), y.into()));
}
strokes.push(stroke); strokes.push(stroke);
} }

View File

@ -0,0 +1,19 @@
---
source: src/handwriting/mod.rs
expression: handwriting.strokes
---
[
[
[-1.0 1.0],
[3.0 1.0],
[3.0 3.0],
[1.5 2.0],
[0.0 0.0],
],
[
[3.0 3.0],
[-1.0 1.0],
[0.0 0.0],
[3.0 1.0],
],
]

View File

@ -0,0 +1,7 @@
---
source: src/handwriting/mod.rs
expression: serialized
---
```handwriting
AQAFAAC8ADwAQgA8AEIAQgA+AEAAAAAABAAAQgBCALwAPAAAAAAAQgA8
```

View File

@ -3,9 +3,10 @@
pub mod app; pub mod app;
pub mod constants; pub mod constants;
pub mod custom_code_block; pub mod custom_code_block;
pub mod easy_mark;
pub mod file_editor; pub mod file_editor;
pub mod markdown; pub mod folder;
pub mod painting; pub mod handwriting;
pub mod preferences; pub mod preferences;
pub mod rasterizer; pub mod rasterizer;
pub mod text_editor; pub mod text_editor;

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@ -1,54 +0,0 @@
use super::span::Span;
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub enum Heading {
H1,
H2,
H3,
H4,
H5,
H6,
}
#[derive(Copy, Clone, Debug, Default, Eq, PartialEq)]
pub struct Style {
/// # heading (large text)
pub heading: Option<Heading>,
/// > quoted (slightly dimmer color or other font style)
pub quoted: bool,
/// `code` (monospace, some other color)
pub code: bool,
/// self.strong* (emphasized, e.g. bold)
pub strong: bool,
/// _underline_
pub underline: bool,
/// ~strikethrough~
pub strikethrough: bool,
/// /italics/
pub italics: bool,
/// $small$
pub small: bool,
/// ^raised^
pub raised: bool,
}
pub enum MarkdownItem<'a> {
Text {
span: Span<'a>,
style: Style,
},
CodeBlock {
all: Span<'a>,
language: Span<'a>,
code: Span<'a>,
},
}

View File

@ -1,10 +0,0 @@
use std::str::FromStr;
grammar;
pub Term: i32 = {
<n:Num> => n,
"(" <t:Term> ")" => t,
};
Num: i32 = <s:r"[0-9]+"> => i32::from_str(s).unwrap();

View File

@ -1,268 +0,0 @@
use egui::text::{CCursorRange, LayoutJob};
use crate::markdown::{
span::Span,
tokenizer::{Heading, Token, TokenKind, tokenize},
};
/// Highlight markdown, caching previous output to save CPU.
#[derive(Default)]
pub struct MemoizedHighlighter {
style: egui::Style,
code: String,
output: LayoutJob,
}
#[derive(Copy, Clone, Debug, Default, Eq, PartialEq)]
pub struct Style {
/// # heading (large text)
pub heading: Option<Heading>,
/// > quoted (slightly dimmer color or other font style)
pub quoted: bool,
/// `code` (monospace, some other color)
pub code: bool,
/// self.strong* (emphasized, e.g. bold)
pub strong: bool,
/// _underline_
pub underline: bool,
/// ~strikethrough~
pub strikethrough: bool,
/// /italics/
pub italics: bool,
/// $small$
pub small: bool,
/// ^raised^
pub raised: bool,
}
impl MemoizedHighlighter {
pub fn highlight(
&mut self,
egui_style: &egui::Style,
code: &str,
cursor: Option<CCursorRange>,
) -> LayoutJob {
if (&self.style, self.code.as_str()) != (egui_style, code) {
self.style = egui_style.clone();
code.clone_into(&mut self.code);
self.output = highlight_markdown(egui_style, code, cursor);
}
self.output.clone()
}
}
pub fn highlight_markdown(
egui_style: &egui::Style,
text: &str,
// TODO: hide special characters where cursor isn't
_cursor: Option<CCursorRange>,
) -> LayoutJob {
let mut job = LayoutJob::default();
let mut style = Style::default();
let mut prev = TokenKind::Newline;
let tokens: Vec<_> = tokenize(text).collect();
let mut tokens = &tokens[..];
const CODE_INDENT: f32 = 10.0;
while !tokens.is_empty() {
let token = tokens.first().unwrap();
tokens = &tokens[1..];
let start_of_line = prev == TokenKind::Newline;
prev = token.kind;
let mut basic_style: Option<fn(&mut Style) -> &mut bool> = None;
match token.kind {
TokenKind::CodeBlock if start_of_line => {
let span = collect_until(
token,
&mut tokens,
series([TokenKind::Newline, TokenKind::CodeBlock]),
);
let code_style = format_from_style(
egui_style,
&Style {
code: true,
..Default::default()
},
);
job.append(&*span, CODE_INDENT, code_style.clone());
style = Default::default();
continue;
}
TokenKind::Newline => style = Style::default(),
TokenKind::Strong => basic_style = Some(|s| &mut s.strong),
TokenKind::Italic => basic_style = Some(|s| &mut s.italics),
TokenKind::Strikethrough => basic_style = Some(|s| &mut s.strikethrough),
TokenKind::CodeBlock | TokenKind::Mono => {
style.code = true;
let span = collect_until(
token,
&mut tokens,
any_of([TokenKind::Mono, TokenKind::CodeBlock, TokenKind::Newline]),
);
job.append(&*span, 0.0, format_from_style(egui_style, &style));
style.code = false;
continue;
}
// TODO: different heading strengths
TokenKind::Heading(h) if start_of_line => style.heading = Some(h),
TokenKind::Quote if start_of_line => style.quoted = true,
// TODO: indented list entries
TokenKind::ListEntry if start_of_line => {
job.append("", 0.0, format_from_style(egui_style, &style));
continue;
}
TokenKind::Text
// the following tokens are only richly rendered if encountered e.g. at start_of_line.
| TokenKind::Indentation
| TokenKind::ListEntry
| TokenKind::Heading(..)
| TokenKind::Quote => {}
}
// if we encountered a marker for Bold, Italic, or Strikethrough, toggle that style and
// render the token with the style enabled.
if let Some(basic_style) = basic_style {
let mut tmp_style = style;
*basic_style(&mut tmp_style) = true;
*basic_style(&mut style) ^= true; // toggle
job.append(&token.span, 0.0, format_from_style(egui_style, &tmp_style));
continue;
}
job.append(&token.span, 0.0, format_from_style(egui_style, &style));
}
job
}
fn series<'a, const N: usize>(of: [TokenKind; N]) -> impl FnMut(&[Token<'a>; N]) -> bool {
move |token| {
of.iter()
.zip(token)
.all(|(kind, token)| kind == &token.kind)
}
}
fn any_of<'a, const N: usize>(these: [TokenKind; N]) -> impl FnMut(&[Token<'a>; 1]) -> bool {
move |[token]| these.contains(&token.kind)
}
/// Collect all tokens up to and including `pattern`, and merge them into a signle span.
///
/// `N` determines how many specific and consecutive tokens we are looking for.
/// i.e. if we were looking for a [TokenKind::Newline] followed by a [TokenKind::Quote], `N`
/// would equal `2`.
///
/// `pattern` is a function that accepts an array of `N` tokens and returns `true` if they match,
/// i.e. if we should stop collecting. [any_of] and [series] can help to construct this function.
///
/// The collected tokens will be split off the head of the slice referred to by `tokens`.
///
/// # Panic
/// Panics if `tokens` does not contain only consecutive adjacent spans.
fn collect_until<'a, const N: usize>(
token: &Token<'a>,
tokens: &mut &[Token<'a>],
pattern: impl FnMut(&[Token<'a>; N]) -> bool,
) -> Span<'a>
where
for<'b> &'b [Token<'a>; N]: TryFrom<&'b [Token<'a>]>,
{
let mut windows = tokens
.windows(N)
.map(|slice| <&[Token<'a>; N]>::try_from(slice).ok().unwrap());
let split_at = match windows.position(pattern) {
Some(i) => i + N,
None => tokens.len(), // consume everything
};
let (consume, keep) = tokens.split_at(split_at);
*tokens = keep;
consume
.iter()
.fold(token.span.clone(), |span: Span<'_>, token| {
span.try_merge(&token.span).unwrap()
})
}
fn format_from_style(egui_style: &egui::Style, emark_style: &Style) -> egui::text::TextFormat {
use egui::{Align, Color32, Stroke, TextStyle};
let color = if emark_style.strong || emark_style.heading.is_some() {
egui_style.visuals.strong_text_color()
} else if emark_style.quoted {
egui_style.visuals.weak_text_color()
} else {
egui_style.visuals.text_color()
};
let text_style = if emark_style.heading.is_some() {
TextStyle::Heading
} else if emark_style.code {
TextStyle::Monospace
} else if emark_style.small | emark_style.raised {
TextStyle::Small
} else {
TextStyle::Body
};
let background = if emark_style.code {
egui_style.visuals.code_bg_color
} else {
Color32::TRANSPARENT
};
let underline = if emark_style.underline {
Stroke::new(1.0, color)
} else {
Stroke::NONE
};
let strikethrough = if emark_style.strikethrough {
Stroke::new(1.0, color)
} else {
Stroke::NONE
};
let valign = if emark_style.raised {
Align::TOP
} else {
Align::BOTTOM
};
egui::text::TextFormat {
font_id: text_style.resolve(egui_style),
color,
background,
italics: emark_style.italics,
underline,
strikethrough,
valign,
..Default::default()
}
}

View File

@ -1,7 +0,0 @@
mod highlighter;
mod span;
mod tokenizer;
pub use highlighter::*;
pub use span::*;
pub use tokenizer::*;

View File

@ -1,46 +0,0 @@
---
source: src/markdown/tokenizer.rs
expression: examples
---
- string: "just some normal text :D"
tokens:
- "Token { span: Span(0..24, \"just some normal text :D\"), kind: Text }"
- string: normal *bold* normal
tokens:
- "Token { span: Span(0..7, \"normal \"), kind: Text }"
- "Token { span: Span(7..8, \"*\"), kind: Strong }"
- "Token { span: Span(8..12, \"bold\"), kind: Text }"
- "Token { span: Span(12..13, \"*\"), kind: Strong }"
- "Token { span: Span(13..20, \" normal\"), kind: Text }"
- string: normal * maybe bold? * normal
tokens:
- "Token { span: Span(0..7, \"normal \"), kind: Text }"
- "Token { span: Span(7..8, \"*\"), kind: Strong }"
- "Token { span: Span(8..21, \" maybe bold? \"), kind: Text }"
- "Token { span: Span(21..22, \"*\"), kind: Strong }"
- "Token { span: Span(22..29, \" normal\"), kind: Text }"
- string: "```lang\ncode code code\n```"
tokens:
- "Token { span: Span(0..3, \"```\"), kind: CodeBlock }"
- "Token { span: Span(3..7, \"lang\"), kind: Text }"
- "Token { span: Span(7..8, \"\\n\"), kind: Newline }"
- "Token { span: Span(8..22, \"code code code\"), kind: Text }"
- "Token { span: Span(22..23, \"\\n\"), kind: Newline }"
- "Token { span: Span(23..26, \"```\"), kind: CodeBlock }"
- string: "*/``/*"
tokens:
- "Token { span: Span(0..1, \"*\"), kind: Strong }"
- "Token { span: Span(1..2, \"/\"), kind: Italic }"
- "Token { span: Span(2..3, \"`\"), kind: Mono }"
- "Token { span: Span(3..4, \"`\"), kind: Mono }"
- "Token { span: Span(4..5, \"/\"), kind: Italic }"
- "Token { span: Span(5..6, \"*\"), kind: Strong }"
- string: "*/`*/*/"
tokens:
- "Token { span: Span(0..1, \"*\"), kind: Strong }"
- "Token { span: Span(1..2, \"/\"), kind: Italic }"
- "Token { span: Span(2..3, \"`\"), kind: Mono }"
- "Token { span: Span(3..4, \"*\"), kind: Strong }"
- "Token { span: Span(4..5, \"/\"), kind: Italic }"
- "Token { span: Span(5..6, \"*\"), kind: Strong }"
- "Token { span: Span(6..7, \"/\"), kind: Italic }"

View File

@ -1,83 +0,0 @@
use std::{
fmt,
ops::{Deref, Range},
};
#[derive(Clone, Eq, PartialEq)]
pub struct Span<'a> {
complete_str: &'a str,
range: Range<usize>,
}
impl<'a> Span<'a> {
pub fn new(complete_str: &'a str) -> Self {
Self {
complete_str,
range: 0..complete_str.len(),
}
}
pub fn get(&self, slice: Range<usize>) -> Option<Self> {
let start = self.range.start.checked_add(slice.start)?;
let end = self.range.start.checked_add(slice.end)?;
if end > self.range.end || end < start {
return None;
}
Some(Self {
complete_str: self.complete_str,
range: Range { start, end },
})
}
pub fn complete_str(&self) -> Self {
Self::new(self.complete_str)
}
pub fn split_at(&self, i: usize) -> Option<(Self, Self)> {
let head = self.get(0..i)?;
let tail = self.get(i..self.range.len())?;
Some((head, tail))
}
/// Try to merge the spans.
///
/// This only works if spans are pointing into the same backing buffer, and are adjacent.
pub fn try_merge(&self, other: &Self) -> Option<Self> {
if self.complete_str.as_ptr() != other.complete_str.as_ptr() {
return None;
}
if self.range.end == other.range.start {
Some(Self {
range: self.range.start..other.range.end,
..*self
})
} else if self.range.start == other.range.end {
Some(Self {
range: other.range.start..self.range.end,
..*self
})
} else {
None
}
}
}
impl Deref for Span<'_> {
type Target = str;
fn deref(&self) -> &Self::Target {
&self.complete_str[self.range.clone()]
}
}
impl<'a> fmt::Debug for Span<'a> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_tuple("Span")
.field(&self.range)
.field(&self.deref())
.finish()
}
}

View File

@ -1,156 +0,0 @@
use std::iter;
use super::span::Span;
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum Heading {
H6,
H5,
H4,
H3,
H2,
H1,
}
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum TokenKind {
/// A newline that isn't a codeblock
Newline,
/// "#" to "######"
Heading(Heading),
/// A newline followed by three `
CodeBlock,
Mono,
Strong,
Italic,
Strikethrough,
/// ">"
Quote,
/// Two spaces
Indentation,
/// "- "
ListEntry,
/// Normal text
Text,
}
const TOKENS: &[(&'static str, TokenKind)] = &[
("\n", TokenKind::Newline),
("######", TokenKind::Heading(Heading::H6)),
("#####", TokenKind::Heading(Heading::H5)),
("####", TokenKind::Heading(Heading::H4)),
("###", TokenKind::Heading(Heading::H3)),
("##", TokenKind::Heading(Heading::H2)),
("#", TokenKind::Heading(Heading::H1)),
("```", TokenKind::CodeBlock),
("`", TokenKind::Mono),
("*", TokenKind::Strong),
("_", TokenKind::Italic),
("~", TokenKind::Strikethrough),
(">", TokenKind::Quote),
(" ", TokenKind::Indentation),
("- ", TokenKind::ListEntry),
];
#[derive(Debug)]
pub struct Token<'a> {
pub span: Span<'a>,
pub kind: TokenKind,
}
pub fn tokenize<'a>(s: &'a str) -> impl Iterator<Item = Token<'a>> {
let mut s = Span::new(s);
let mut yield_n: usize = 0;
iter::from_fn(move || {
loop {
if s.is_empty() {
return None;
}
if yield_n == s.len() {
let (token, rest) = s.split_at(s.len()).unwrap();
let token = Token {
span: token,
kind: TokenKind::Text,
};
s = rest;
return Some(token);
}
let token = TOKENS.iter().find_map(|(token_str, token_kind)| {
s[yield_n..]
.starts_with(token_str)
.then(|| (*token_kind, token_str.len()))
});
let Some((kind, len)) = token else {
yield_n += s[yield_n..].chars().next().unwrap_or('\0').len_utf8();
continue;
};
if yield_n > 0 {
let (token, rest) = s.split_at(yield_n).unwrap();
let token = Token {
span: token,
kind: TokenKind::Text,
};
s = rest;
yield_n = 0;
return Some(token);
}
let (token, rest) = s.split_at(len).unwrap();
let token = Token { span: token, kind };
s = rest;
return Some(token);
}
})
}
#[cfg(test)]
mod tests {
use serde::Serialize;
use super::tokenize;
#[test]
fn test_tokenize() {
let examples = [
"just some normal text :D",
"normal *bold* normal",
"normal * maybe bold? * normal",
"```lang\ncode code code\n```",
"*/``/*",
"*/`*/*/",
];
#[derive(Serialize)]
struct Result {
pub string: &'static str,
/// Debug-printed tokens
pub tokens: Vec<String>,
}
let examples = examples
.into_iter()
.map(|string| {
let tokens = tokenize(string)
.map(|tokens| format!("{tokens:?}"))
.collect::<Vec<_>>();
Result { string, tokens }
})
.collect::<Vec<_>>();
insta::assert_yaml_snapshot!(examples);
}
}

View File

@ -72,15 +72,11 @@ pub fn rasterize_onto<'a, Blend: BlendFn>(
// If the pixel is within the triangle, fill it in. // If the pixel is within the triangle, fill it in.
if point_in_triangle.inside { if point_in_triangle.inside {
let c0 = triangle[0] let [c0, c1, c2] = [0, 1, 2].map(|i| {
triangle[i]
.color .color
.linear_multiply(point_in_triangle.weights[0]); .linear_multiply(point_in_triangle.weights[i])
let c1 = triangle[1] });
.color
.linear_multiply(point_in_triangle.weights[1]);
let c2 = triangle[2]
.color
.linear_multiply(point_in_triangle.weights[2]);
let color = c0 + c1 + c2; let color = c0 + c1 + c2;
@ -169,6 +165,10 @@ fn point_in_triangle(point: Pos2, triangle: [&Vertex; 3]) -> PointInTriangle {
// Normalize the weights. // Normalize the weights.
let weights = areas.map(|area| area / triangle_area); let weights = areas.map(|area| area / triangle_area);
if cfg!(debug_assertions) && weights.into_iter().any(f32::is_nan) {
panic!("weights must not be NaN! {weights:?} {triangle_area:?} {areas:?} {sides:?}");
}
PointInTriangle { inside, weights } PointInTriangle { inside, weights }
} }

View File

@ -1,6 +1,5 @@
--- ---
source: src/custom_code_block.rs source: src/custom_code_block.rs
assertion_line: 133
expression: list expression: list
--- ---
[ [

View File

@ -1,8 +0,0 @@
---
source: src/painting.rs
assertion_line: 695
expression: serialized
---
```handwriting
BQAAvAA8AEIAPABCAEIAPgBAAAAAAAQAAEIAQgC8ADwAAAAAAEIAPA==
```

View File

@ -8,7 +8,7 @@ use egui::{
Color32, InputState, Key, Modifiers, TextBuffer, TextEdit, Ui, Vec2, text::CCursorRange, Color32, InputState, Key, Modifiers, TextBuffer, TextEdit, Ui, Vec2, text::CCursorRange,
}; };
use crate::markdown::MemoizedHighlighter; use crate::easy_mark::MemoizedHighlighter;
#[derive(Default, serde::Deserialize, serde::Serialize)] #[derive(Default, serde::Deserialize, serde::Serialize)]
pub struct MdTextEdit { pub struct MdTextEdit {
@ -24,6 +24,10 @@ pub struct MdTextEdit {
cursor: Option<CCursorRange>, cursor: Option<CCursorRange>,
} }
pub struct MdTextEditOutput {
pub changed: bool,
}
impl MdTextEdit { impl MdTextEdit {
pub fn new() -> Self { pub fn new() -> Self {
MdTextEdit::default() MdTextEdit::default()
@ -36,7 +40,7 @@ impl MdTextEdit {
} }
} }
pub fn ui(&mut self, ui: &mut Ui) { pub fn ui(&mut self, ui: &mut Ui) -> MdTextEditOutput {
let Self { let Self {
text, text,
highlighter, highlighter,
@ -46,8 +50,8 @@ impl MdTextEdit {
let w = ui.available_width(); let w = ui.available_width();
let mut layouter = |ui: &egui::Ui, markdown: &dyn TextBuffer, _wrap_width: f32| { let mut layouter = |ui: &egui::Ui, easymark: &dyn TextBuffer, _wrap_width: f32| {
let mut layout_job = highlighter.highlight(ui.style(), markdown.as_str(), *cursor); let mut layout_job = highlighter.highlight(ui.style(), easymark.as_str(), *cursor);
layout_job.wrap.max_width = w - 10.0; layout_job.wrap.max_width = w - 10.0;
ui.fonts(|f| f.layout_job(layout_job)) ui.fonts(|f| f.layout_job(layout_job))
}; };
@ -72,6 +76,10 @@ impl MdTextEdit {
*cursor = text_edit.cursor_range; *cursor = text_edit.cursor_range;
//ui.ctx().request_repaint(); //ui.ctx().request_repaint();
} }
MdTextEditOutput {
changed: text_edit.response.changed(),
}
} }
} }