1//todo!(linux) remove
  2#[allow(unused)]
  3use crate::{
  4    Bounds, DevicePixels, Font, FontId, FontMetrics, FontRun, GlyphId, LineLayout, Pixels,
  5    PlatformTextSystem, RenderGlyphParams, SharedString, Size,
  6};
  7use anyhow::Result;
  8use collections::HashMap;
  9use font_kit::{font::Font as FontKitFont, source::SystemSource, sources::mem::MemSource};
 10use parking_lot::RwLock;
 11use smallvec::SmallVec;
 12use std::borrow::Cow;
 13
 14pub(crate) struct LinuxTextSystem(RwLock<LinuxTextSystemState>);
 15
 16struct LinuxTextSystemState {
 17    memory_source: MemSource,
 18    system_source: SystemSource,
 19    fonts: Vec<FontKitFont>,
 20    font_selections: HashMap<Font, FontId>,
 21    font_ids_by_postscript_name: HashMap<String, FontId>,
 22    font_ids_by_family_name: HashMap<SharedString, SmallVec<[FontId; 4]>>,
 23    postscript_names_by_font_id: HashMap<FontId, String>,
 24}
 25
 26// todo!(linux): Double check this
 27unsafe impl Send for LinuxTextSystemState {}
 28unsafe impl Sync for LinuxTextSystemState {}
 29
 30impl LinuxTextSystem {
 31    pub(crate) fn new() -> Self {
 32        Self(RwLock::new(LinuxTextSystemState {
 33            memory_source: MemSource::empty(),
 34            system_source: SystemSource::new(),
 35            fonts: Vec::new(),
 36            font_selections: HashMap::default(),
 37            font_ids_by_postscript_name: HashMap::default(),
 38            font_ids_by_family_name: HashMap::default(),
 39            postscript_names_by_font_id: HashMap::default(),
 40        }))
 41    }
 42}
 43
 44impl Default for LinuxTextSystem {
 45    fn default() -> Self {
 46        Self::new()
 47    }
 48}
 49
 50#[allow(unused)]
 51impl PlatformTextSystem for LinuxTextSystem {
 52    // todo!(linux)
 53    fn add_fonts(&self, fonts: Vec<Cow<'static, [u8]>>) -> Result<()> {
 54        Ok(())
 55    }
 56
 57    // todo!(linux)
 58    fn all_font_names(&self) -> Vec<String> {
 59        Vec::new()
 60    }
 61
 62    // todo!(linux)
 63    fn all_font_families(&self) -> Vec<String> {
 64        Vec::new()
 65    }
 66
 67    // todo!(linux)
 68    fn font_id(&self, descriptor: &Font) -> Result<FontId> {
 69        Ok(FontId(0))
 70    }
 71
 72    // todo!(linux)
 73    fn font_metrics(&self, font_id: FontId) -> FontMetrics {
 74        unimplemented!()
 75    }
 76
 77    // todo!(linux)
 78    fn typographic_bounds(&self, font_id: FontId, glyph_id: GlyphId) -> Result<Bounds<f32>> {
 79        unimplemented!()
 80    }
 81
 82    // todo!(linux)
 83    fn advance(&self, font_id: FontId, glyph_id: GlyphId) -> Result<Size<f32>> {
 84        unimplemented!()
 85    }
 86
 87    // todo!(linux)
 88    fn glyph_for_char(&self, font_id: FontId, ch: char) -> Option<GlyphId> {
 89        None
 90    }
 91
 92    // todo!(linux)
 93    fn glyph_raster_bounds(&self, params: &RenderGlyphParams) -> Result<Bounds<DevicePixels>> {
 94        unimplemented!()
 95    }
 96
 97    // todo!(linux)
 98    fn rasterize_glyph(
 99        &self,
100        params: &RenderGlyphParams,
101        raster_bounds: Bounds<DevicePixels>,
102    ) -> Result<(Size<DevicePixels>, Vec<u8>)> {
103        unimplemented!()
104    }
105
106    // todo!(linux)
107    fn layout_line(&self, text: &str, font_size: Pixels, runs: &[FontRun]) -> LineLayout {
108        LineLayout::default() //TODO
109    }
110
111    // todo!(linux)
112    fn wrap_line(
113        &self,
114        text: &str,
115        font_id: FontId,
116        font_size: Pixels,
117        width: Pixels,
118    ) -> Vec<usize> {
119        unimplemented!()
120    }
121}