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Add basic GUI support (#17)

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This commit was merged in pull request #17.
This commit is contained in:
Shaun Reed
2026-02-08 21:25:03 +00:00
parent 2340fd7652
commit f6fdd19f73
45 changed files with 1217 additions and 684 deletions
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126
src/gui/filesystem.rs
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@@ -1,3 +1,19 @@
// SPDX-FileCopyrightText: 2026, Shaun Reed <shaunrd0@gmail.com>
//
// SPDX-License-Identifier: GNU General Public License v3.0 or later
use cxx_qt_lib::{QModelIndex, QString};
use devicons::FileIcon;
use dirs;
use log::warn;
use std::fs;
use std::path::Path;
use syntect::easy::HighlightLines;
use syntect::highlighting::ThemeSet;
use syntect::html::{IncludeBackground, append_highlighted_html_for_styled_line};
use syntect::parsing::SyntaxSet;
use syntect::util::LinesWithEndings;
#[cxx_qt::bridge]
pub mod qobject {
unsafe extern "C++" {
@@ -17,7 +33,6 @@ pub mod qobject {
#[qml_element]
#[qml_singleton]
#[qproperty(QString, file_path, cxx_name = "filePath")]
#[qproperty(QModelIndex, root_index, cxx_name = "rootIndex")]
type FileSystem = super::FileSystemImpl;
#[inherit]
@@ -36,25 +51,14 @@ pub mod qobject {
#[qinvokable]
#[cxx_name = "setDirectory"]
fn set_directory(self: Pin<&mut FileSystem>, path: &QString) -> QModelIndex;
#[qinvokable]
fn icon(self: Pin<&mut FileSystem>, path: &QString) -> QString;
}
}
use cxx_qt_lib::{QModelIndex, QString};
use dirs;
use log::warn;
use std::fs;
use std::io::BufRead;
use syntect::easy::HighlightFile;
use syntect::highlighting::ThemeSet;
use syntect::html::{
IncludeBackground, append_highlighted_html_for_styled_line, start_highlighted_html_snippet,
};
use syntect::parsing::SyntaxSet;
// TODO: Impleent a provider for QFileSystemModel::setIconProvider for icons.
pub struct FileSystemImpl {
file_path: QString,
root_index: QModelIndex,
}
// Default is explicit to make the editor open this source file initially.
@@ -62,7 +66,6 @@ impl Default for FileSystemImpl {
fn default() -> Self {
Self {
file_path: QString::from(file!()),
root_index: Default::default(),
}
}
}
@@ -72,42 +75,47 @@ impl qobject::FileSystem {
if path.is_empty() {
return QString::default();
}
if !fs::metadata(path.to_string())
.expect(format!("Failed to get file metadata {path:?}").as_str())
.is_file()
{
let meta = fs::metadata(path.to_string())
.expect(format!("Failed to get file metadata {path:?}").as_str());
if !meta.is_file() {
warn!(target:"FileSystem", "Attempted to open file {path:?} that is not a valid file");
return QString::default();
}
let ss = SyntaxSet::load_defaults_nonewlines();
let ts = ThemeSet::load_defaults();
let theme = &ts.themes["base16-ocean.dark"];
let path_str = path.to_string();
if let Ok(lines) = fs::read_to_string(path_str.as_str()) {
let ss = SyntaxSet::load_defaults_nonewlines();
let ts = ThemeSet::load_defaults();
let theme = &ts.themes["base16-ocean.dark"];
let lang = ss
.find_syntax_by_extension(
Path::new(path_str.as_str())
.extension()
.map(|s| s.to_str())
.unwrap_or_else(|| Some("md"))
.expect("Failed to get file extension"),
)
.unwrap_or_else(|| ss.find_syntax_plain_text());
let mut highlighter = HighlightLines::new(lang, theme);
// If you care about the background, see `start_highlighted_html_snippet(theme);`.
let mut output = String::from("<pre>\n");
for line in LinesWithEndings::from(lines.as_str()) {
let regions = highlighter
.highlight_line(line, &ss)
.expect("Failed to highlight");
let mut highlighter =
HighlightFile::new(path.to_string(), &ss, theme).expect("Failed to create highlighter");
let (mut output, _bg) = start_highlighted_html_snippet(theme);
let mut line = String::new();
while highlighter
.reader
.read_line(&mut line)
.expect("Failed to read file.")
> 0
{
let regions = highlighter
.highlight_lines
.highlight_line(&line, &ss)
.expect("Failed to highlight");
append_highlighted_html_for_styled_line(
&regions[..],
IncludeBackground::No,
&mut output,
)
.expect("Failed to insert highlighted html");
}
append_highlighted_html_for_styled_line(
&regions[..],
IncludeBackground::Yes,
&mut output,
)
.expect("Failed to insert highlighted html");
line.clear();
output.push_str("</pre>\n");
QString::from(output)
} else {
return QString::default();
}
output.push_str("</pre>\n");
QString::from(output)
}
// There will never be more than one column.
@@ -124,14 +132,24 @@ impl qobject::FileSystem {
self.set_root_path(path)
} else {
// If the initial directory can't be opened, attempt to find the home directory.
self.set_root_path(&QString::from(
dirs::home_dir()
.expect("Failed to get home directory")
.as_path()
.to_str()
.unwrap()
.to_string(),
))
let homedir = dirs::home_dir()
.expect("Failed to get home directory")
.as_path()
.to_str()
.unwrap()
.to_string();
self.set_root_path(&QString::from(homedir))
}
}
fn icon(self: std::pin::Pin<&mut Self>, path: &QString) -> QString {
let str = path.to_string();
if Path::new(&str).is_dir() {
// Ensures directories are given a folder icon and not mistakenly resolved to a language.
// For example, a directory named `cpp` would otherwise return a C++ icon.
return QString::from(FileIcon::from("dir/").to_string())
}
let icon = FileIcon::from(str);
QString::from(icon.to_string())
}
}