Text library moved from libcosmic

src/font/mod.rs

@@ -0,0 +1,60 @@
+use std::{collections::HashMap, sync::Mutex};
+
+pub mod fallback;
+
+pub use self::cache::*;
+mod cache;
+
+pub use self::layout::*;
+mod layout;
+
+pub use self::matches::*;
+mod matches;
+
+pub use self::shape::*;
+mod shape;
+
+pub use self::system::*;
+mod system;
+
+#[derive(Clone, Copy, Eq, Hash, Ord, PartialEq, PartialOrd)]
+pub struct FontCacheKey {
+    glyph_id: u16,
+}
+
+#[derive(Clone, Copy, Eq, PartialEq, Ord, PartialOrd)]
+pub struct FontLineIndex(usize);
+
+impl FontLineIndex {
+    pub fn new(index: usize) -> Self {
+        Self(index)
+    }
+
+    pub fn get(&self) -> usize {
+        self.0
+    }
+}
+
+pub struct Font<'a> {
+    pub info: &'a fontdb::FaceInfo,
+    pub data: &'a [u8],
+    pub index: u32,
+    pub rustybuzz: rustybuzz::Face<'a>,
+    pub swash: swash::FontRef<'a>,
+    pub scale_context: Mutex<swash::scale::ScaleContext>,
+    pub cache: Mutex<HashMap<CacheKey, CacheItem>>,
+}
+
+impl<'a> Font<'a> {
+    pub fn new(info: &'a fontdb::FaceInfo, data: &'a [u8], index: u32) -> Option<Self> {
+        Some(Self {
+            info,
+            data,
+            index,
+            rustybuzz: rustybuzz::Face::from_slice(data, index)?,
+            swash: swash::FontRef::from_index(data, index as usize)?,
+            scale_context: Mutex::new(swash::scale::ScaleContext::new()),
+            cache: Mutex::new(HashMap::new()),
+        })
+    }
+}