105 lines
3.0 KiB
Rust
105 lines
3.0 KiB
Rust
pub struct FontBook {
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standard: bool,
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emojis: bool,
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filter: String,
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text_style: egui::TextStyle,
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}
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impl Default for FontBook {
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fn default() -> Self {
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Self {
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standard: false,
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emojis: true,
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filter: Default::default(),
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text_style: egui::TextStyle::Button,
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}
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}
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}
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impl FontBook {
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fn characters_ui(&self, ui: &mut egui::Ui, characters: &[(u32, char, &str)]) {
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use egui::{Button, Label};
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for &(_, chr, name) in characters {
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if self.filter.is_empty()
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|| name.contains(&self.filter)
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|| self.filter == chr.to_string()
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{
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let button = Button::new(chr).text_style(self.text_style).frame(false);
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let tooltip_ui = |ui: &mut egui::Ui| {
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ui.add(Label::new(chr).text_style(self.text_style));
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ui.label(format!("{}\nU+{:X}\n\nClick to copy", name, chr as u32));
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};
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if ui.add(button).on_hover_ui(tooltip_ui).clicked() {
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ui.output().copied_text = chr.to_string();
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}
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}
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}
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}
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}
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impl super::Demo for FontBook {
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fn name(&self) -> &'static str {
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"🔤 Font Book"
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}
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fn show(&mut self, ctx: &egui::CtxRef, open: &mut bool) {
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egui::Window::new(self.name()).open(open).show(ctx, |ui| {
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use super::View;
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self.ui(ui);
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});
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}
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}
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impl super::View for FontBook {
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fn ui(&mut self, ui: &mut egui::Ui) {
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use super::font_contents_emoji::FULL_EMOJI_LIST;
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use super::font_contents_ubuntu::UBUNTU_FONT_CHARACTERS;
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ui.label(format!(
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"egui supports {} standard characters and {} emojis.\nClick on a character to copy it.",
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UBUNTU_FONT_CHARACTERS.len(),
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FULL_EMOJI_LIST.len(),
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));
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ui.separator();
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egui::combo_box_with_label(ui, "Text style", format!("{:?}", self.text_style), |ui| {
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for style in egui::TextStyle::all() {
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ui.selectable_value(&mut self.text_style, style, format!("{:?}", style));
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}
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});
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ui.horizontal(|ui| {
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ui.label("Show:");
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ui.checkbox(&mut self.standard, "Standard");
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ui.checkbox(&mut self.emojis, "Emojis");
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});
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ui.horizontal(|ui| {
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ui.label("Filter:");
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ui.text_edit_singleline(&mut self.filter);
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self.filter = self.filter.to_lowercase();
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if ui.button("ｘ").clicked() {
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self.filter.clear();
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}
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});
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ui.separator();
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egui::ScrollArea::auto_sized().show(ui, |ui| {
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ui.horizontal_wrapped(|ui| {
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ui.spacing_mut().item_spacing = egui::Vec2::splat(2.0);
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if self.standard {
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self.characters_ui(ui, UBUNTU_FONT_CHARACTERS);
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}
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if self.emojis {
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self.characters_ui(ui, FULL_EMOJI_LIST);
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}
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});
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});
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}
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}
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