migrations/egui
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fix: CodeTheme functions - ui and add builder (#7684)

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Following this MR https://github.com/emilk/egui/pull/7375

Without Syntect, the urrent theme selector is
`global_theme_preference_buttons`. It should be the dark_theme variable
of the local CodeTheme - same as syntect


Tested with

```sh
cargo run
# and
cargo run --features syntect 
```

* [x] I have followed the instructions in the PR template


thanks for this amazing library!
This commit is contained in:
n4n5
2026-01-05 09:54:18 -07:00
committed by GitHub
parent 0566fb17a5
commit f26d7d8072
2 changed files with 50 additions and 23 deletions
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45
crates/egui_extras/src/syntax_highlighting.rs
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@@ -228,6 +228,10 @@ impl Default for CodeTheme {
}
impl CodeTheme {
pub fn is_dark(&self) -> bool {
self.dark_mode
}
/// Selects either dark or light theme based on the given style.
pub fn from_style(style: &egui::Style) -> Self {
let font_id = style
@@ -315,6 +319,24 @@ impl CodeTheme {
#[cfg(feature = "syntect")]
impl CodeTheme {
/// Change the font size
pub fn with_font_size(&self, font_size: f32) -> Self {
Self {
dark_mode: self.dark_mode,
syntect_theme: self.syntect_theme,
font_id: egui::FontId::monospace(font_size),
}
}
/// Change the `font_id` of the theme
pub fn with_font_id(&self, font_id: egui::FontId) -> Self {
Self {
dark_mode: self.dark_mode,
syntect_theme: self.syntect_theme,
font_id,
}
}
fn dark_with_font_id(font_id: egui::FontId) -> Self {
Self {
dark_mode: true,
@@ -331,10 +353,6 @@ impl CodeTheme {
}
}
pub fn is_dark(&self) -> bool {
self.dark_mode
}
/// Show UI for changing the color theme.
pub fn ui(&mut self, ui: &mut egui::Ui) {
ui.horizontal(|ui| {
@@ -344,11 +362,9 @@ impl CodeTheme {
ui.selectable_value(&mut self.dark_mode, false, "☀ Light theme")
.on_hover_text("Use the light mode theme");
});
for theme in SyntectTheme::all() {
if theme.is_dark() == self.dark_mode {
ui.radio_value(&mut self.syntect_theme, theme, theme.name());
}
let current_theme_is_dark = self.is_dark();
for theme in SyntectTheme::all().filter(|t| t.is_dark() == current_theme_is_dark) {
ui.radio_value(&mut self.syntect_theme, theme, theme.name());
}
}
}
@@ -408,12 +424,13 @@ impl CodeTheme {
ui.vertical(|ui| {
ui.set_width(150.0);
egui::widgets::global_theme_preference_buttons(ui);
ui.add_space(8.0);
ui.separator();
ui.add_space(8.0);
ui.horizontal(|ui| {
ui.selectable_value(&mut self.dark_mode, true, "🌙 Dark theme")
.on_hover_text("Use the dark mode theme");
ui.selectable_value(&mut self.dark_mode, false, "☀ Light theme")
.on_hover_text("Use the light mode theme");
});
ui.scope(|ui| {
for (tt, tt_name) in [
(TokenType::Comment, "// comment"),