migrations/egui
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eframe app creation refactor (#1363)

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* Change how eframe apps are created
* eframe: re-export epi::* so users don't need to care about what epi is
This commit is contained in:
Emil Ernerfeldt
2022-03-16 15:39:48 +01:00
committed by GitHub
parent c768d1d48e
commit c8f6cae362
26 changed files with 387 additions and 444 deletions
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93
eframe/examples/custom_font.rs
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@@ -1,66 +1,61 @@
use eframe::{egui, epi};
#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")] // hide console window on Windows in release
use eframe::egui;
fn main() {
let options = eframe::NativeOptions::default();
eframe::run_native("egui example: custom font", options, |cc| {
Box::new(MyApp::new(cc))
});
}
fn setup_custom_fonts(ctx: &egui::Context) {
// Start with the default fonts (we will be adding to them rather than replacing them).
let mut fonts = egui::FontDefinitions::default();
// Install my own font (maybe supporting non-latin characters).
// .ttf and .otf files supported.
fonts.font_data.insert(
"my_font".to_owned(),
egui::FontData::from_static(include_bytes!("../../epaint/fonts/Hack-Regular.ttf")),
);
// Put my font first (highest priority) for proportional text:
fonts
.families
.entry(egui::FontFamily::Proportional)
.or_default()
.insert(0, "my_font".to_owned());
// Put my font as last fallback for monospace:
fonts
.families
.entry(egui::FontFamily::Monospace)
.or_default()
.push("my_font".to_owned());
// Tell egui to use these fonts:
ctx.set_fonts(fonts);
}
struct MyApp {
text: String,
}
impl Default for MyApp {
fn default() -> Self {
impl MyApp {
fn new(cc: &eframe::CreationContext<'_>) -> Self {
setup_custom_fonts(&cc.egui_ctx);
Self {
text: "Edit this text field if you want".to_owned(),
}
}
}
impl epi::App for MyApp {
fn name(&self) -> &str {
"egui example: custom font"
}
fn setup(
&mut self,
ctx: &egui::Context,
_frame: &epi::Frame,
_storage: Option<&dyn epi::Storage>,
_gl: &std::rc::Rc<epi::glow::Context>,
) {
// Start with the default fonts (we will be adding to them rather than replacing them).
let mut fonts = egui::FontDefinitions::default();
// Install my own font (maybe supporting non-latin characters).
// .ttf and .otf files supported.
fonts.font_data.insert(
"my_font".to_owned(),
egui::FontData::from_static(include_bytes!("../../epaint/fonts/Hack-Regular.ttf")),
);
// Put my font first (highest priority) for proportional text:
fonts
.families
.entry(egui::FontFamily::Proportional)
.or_default()
.insert(0, "my_font".to_owned());
// Put my font as last fallback for monospace:
fonts
.families
.entry(egui::FontFamily::Monospace)
.or_default()
.push("my_font".to_owned());
// Tell egui to use these fonts:
ctx.set_fonts(fonts);
}
fn update(&mut self, ctx: &egui::Context, _frame: &epi::Frame) {
impl eframe::App for MyApp {
fn update(&mut self, ctx: &egui::Context, _frame: &eframe::Frame) {
egui::CentralPanel::default().show(ctx, |ui| {
ui.heading("egui using custom fonts");
ui.text_edit_multiline(&mut self.text);
});
}
}
fn main() {
let options = eframe::NativeOptions::default();
eframe::run_native(Box::new(MyApp::default()), options);
}