notedeck

One damus client to rule them all
git clone git://jb55.com/notedeck
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fonts.rs (4351B)

      1 use egui::{FontData, FontDefinitions, FontTweak};
      2 use std::collections::BTreeMap;
      3 use tracing::debug;
      4 
      5 pub enum NamedFontFamily {
      6     Medium,
      7     Bold,
      8     Emoji,
      9 }
     10 
     11 impl NamedFontFamily {
     12     pub fn as_str(&mut self) -> &'static str {
     13         match self {
     14             Self::Bold => "bold",
     15             Self::Medium => "medium",
     16             Self::Emoji => "emoji",
     17         }
     18     }
     19 
     20     pub fn as_family(&mut self) -> egui::FontFamily {
     21         egui::FontFamily::Name(self.as_str().into())
     22     }
     23 }
     24 
     25 // Use gossip's approach to font loading. This includes japanese fonts
     26 // for rending stuff from japanese users.
     27 pub fn setup_fonts(ctx: &egui::Context) {
     28     let mut font_data: BTreeMap<String, FontData> = BTreeMap::new();
     29     let mut families = BTreeMap::new();
     30 
     31     font_data.insert(
     32         "Onest".to_owned(),
     33         FontData::from_static(include_bytes!(
     34             "../assets/fonts/onest/OnestRegular1602-hint.ttf"
     35         )),
     36     );
     37 
     38     font_data.insert(
     39         "OnestMedium".to_owned(),
     40         FontData::from_static(include_bytes!(
     41             "../assets/fonts/onest/OnestMedium1602-hint.ttf"
     42         )),
     43     );
     44 
     45     font_data.insert(
     46         "DejaVuSans".to_owned(),
     47         FontData::from_static(include_bytes!("../assets/fonts/DejaVuSansSansEmoji.ttf")),
     48     );
     49 
     50     font_data.insert(
     51         "OnestBold".to_owned(),
     52         FontData::from_static(include_bytes!(
     53             "../assets/fonts/onest/OnestBold1602-hint.ttf"
     54         )),
     55     );
     56 
     57     /*
     58     font_data.insert(
     59         "DejaVuSansBold".to_owned(),
     60         FontData::from_static(include_bytes!(
     61             "../assets/fonts/DejaVuSans-Bold-SansEmoji.ttf"
     62         )),
     63     );
     64 
     65     font_data.insert(
     66         "DejaVuSans".to_owned(),
     67         FontData::from_static(include_bytes!("../assets/fonts/DejaVuSansSansEmoji.ttf")),
     68     );
     69     font_data.insert(
     70         "DejaVuSansBold".to_owned(),
     71         FontData::from_static(include_bytes!(
     72             "../assets/fonts/DejaVuSans-Bold-SansEmoji.ttf"
     73         )),
     74     );
     75     */
     76 
     77     font_data.insert(
     78         "Inconsolata".to_owned(),
     79         FontData::from_static(include_bytes!("../assets/fonts/Inconsolata-Regular.ttf")).tweak(
     80             FontTweak {
     81                 scale: 1.22,            // This font is smaller than DejaVuSans
     82                 y_offset_factor: -0.18, // and too low
     83                 y_offset: 0.0,
     84                 baseline_offset_factor: 0.0,
     85             },
     86         ),
     87     );
     88 
     89     font_data.insert(
     90         "NotoSansCJK".to_owned(),
     91         FontData::from_static(include_bytes!("../assets/fonts/NotoSansCJK-Regular.ttc")),
     92     );
     93 
     94     font_data.insert(
     95         "NotoSansThai".to_owned(),
     96         FontData::from_static(include_bytes!("../assets/fonts/NotoSansThai-Regular.ttf")),
     97     );
     98 
     99     // Some good looking emojis. Use as first priority:
    100     font_data.insert(
    101         "NotoEmoji".to_owned(),
    102         FontData::from_static(include_bytes!("../assets/fonts/NotoEmoji-Regular.ttf")).tweak(
    103             FontTweak {
    104                 scale: 1.1, // make them a touch larger
    105                 y_offset_factor: 0.0,
    106                 y_offset: 0.0,
    107                 baseline_offset_factor: 0.0,
    108             },
    109         ),
    110     );
    111 
    112     let base_fonts = vec![
    113         "DejaVuSans".to_owned(),
    114         "NotoEmoji".to_owned(),
    115         "NotoSansCJK".to_owned(),
    116         "NotoSansThai".to_owned(),
    117     ];
    118 
    119     let mut proportional = vec!["Onest".to_owned()];
    120     proportional.extend(base_fonts.clone());
    121 
    122     let mut medium = vec!["OnestMedium".to_owned()];
    123     medium.extend(base_fonts.clone());
    124 
    125     let mut mono = vec!["Inconsolata".to_owned()];
    126     mono.extend(base_fonts.clone());
    127 
    128     let mut bold = vec!["OnestBold".to_owned()];
    129     bold.extend(base_fonts.clone());
    130 
    131     let emoji = vec!["NotoEmoji".to_owned()];
    132 
    133     families.insert(egui::FontFamily::Proportional, proportional);
    134     families.insert(egui::FontFamily::Monospace, mono);
    135     families.insert(
    136         egui::FontFamily::Name(NamedFontFamily::Medium.as_str().into()),
    137         medium,
    138     );
    139     families.insert(
    140         egui::FontFamily::Name(NamedFontFamily::Bold.as_str().into()),
    141         bold,
    142     );
    143     families.insert(
    144         egui::FontFamily::Name(NamedFontFamily::Emoji.as_str().into()),
    145         emoji,
    146     );
    147 
    148     debug!("fonts: {:?}", families);
    149 
    150     let defs = FontDefinitions {
    151         font_data,
    152         families,
    153     };
    154 
    155     ctx.set_fonts(defs);
    156 }