Assign positional parameters to locals in sha256 verification

- fonts: char::is_alphanumeric takes &self, so filter needs a closure
- h264: keep the mvd accumulator as i32 (prefix is usize)
- model: annotate the non-stacked range accumulators as f64
- engine: chart.options still clears the raw chart XML for upDownBars
  and quartiles; smartart goes back to the glob import (cmd! macro)
- web: keep the original viewport meta (behaviour change)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Cargo.toml

@@ -54,22 +54,22 @@ unicode-linebreak = "0.1"
 chrono = { version = "0.4", default-features = false, features = ["std"] }
 
 # text / rendering / formats
-skrifa = "0.48"
-harfrust = "0.14"
-vello_cpu = "0.3"
-vello_common = { version = "0.3", default-features = false }
+skrifa = "0.47"
+harfrust = "0.13"
+vello_cpu = "0.2"
+vello_common = { version = "0.2", default-features = false }
 image = { version = "0.25", default-features = false, features = ["png", "jpeg", "webp", "gif", "tiff", "bmp"] }
 craft-media = { git = "https://github.com/storytold/craft-libs", rev = "f0ad6c1e1d297908915f4be315b0fcfc9be7b5d4", version = "=0.1.0", default-features = false }
 craft-pdf = { git = "https://github.com/storytold/craft-libs", rev = "c3487320b2d1de657b860b3c8abb44e1f2b32bd8", version = "=0.1.0", default-features = false, features = ["write"] }
 i_overlay = "9"
-quick-xml = "0.42"
-zip = { version = "9", default-features = false, features = ["deflate"] }
+quick-xml = "0.41"
+zip = { version = "3", default-features = false, features = ["deflate"] }
 
 # ui
-egui = "0.37"
+egui = "0.36"
 egui_extras = { version = "0.36", default-features = false }
-eframe = { version = "0.37", default-features = false }
-egui_kittest = "0.37"
+eframe = { version = "0.36", default-features = false }
+egui_kittest = "0.36"
 rfd = "0.17"
 arboard = { version = "3.6", default-features = false }
 

apps/deckcraft/Cargo.toml

@@ -28,7 +28,7 @@ winresource = "0.1"
 rfd = { workspace = true }
 arboard = { workspace = true, features = ["image-data"] }
 image = { workspace = true }
-cpal = "0.18"
+cpal = "0.16"
 
 [target.'cfg(target_os = "macos")'.dependencies]
 # Finder double-click, Open With, Dock drops and `open -a DeckCraft deck.pptx` arrive as a

crates/anim/src/path.rs

@@ -49,7 +49,7 @@ fn tokenize(s: &str) -> Vec<Tok> {
                     n1.is_ascii_digit() || ((n1 == '-' || n1 == '+') && n2.is_ascii_digit())
                 } {
                     i += 2;
-                    while cs.get(i).is_some_and(|d| d.is_ascii_digit()) {
+                    while cs.get(i).is_some_and(char::is_ascii_digit) {
                         i += 1;
                     }
                     break;

crates/av1/src/tile.rs

@@ -2222,18 +2222,16 @@ fn neg_deinterleave(diff: i32, r: i32, max: i32) -> i32 {
         if diff <= 2 * r {
             if diff & 1 == 1 {
                 return r + ((diff + 1) >> 1);
-            } else {
-                return r - (diff >> 1);
             }
+            return r - (diff >> 1);
         }
         diff
     } else {
         if diff <= 2 * (max - r - 1) {
             if diff & 1 == 1 {
                 return r + ((diff + 1) >> 1);
-            } else {
-                return r - (diff >> 1);
             }
+            return r - (diff >> 1);
         }
         max - (diff + 1)
     }

crates/engine/src/cmd/file.rs

@@ -1,6 +1,10 @@
 //! File menu: new, open, save, export, close, properties.
 
-use deckcraft_model::{Presentation, defaults};
+use std::collections::HashMap;
+use std::sync::Arc;
+
+use deckcraft_media::MediaInfo;
+use deckcraft_model::{MediaId, MediaItem, Presentation, Shape, ShapeKind, defaults};
 use serde_json::{Value, json};
 
 use super::*;
@@ -156,6 +160,7 @@ fn open_other(name: &str, bytes: &[u8]) -> Result<(Presentation, Vec<String>)> {
     if deckcraft_pptx::sniff(bytes) {
         let (mut p, lost_slides) = deckcraft_pptx::import_checked(bytes).map_err(|e| EngineError::Other(e.to_string()))?;
         deckcraft_format::repair(&mut p);
+        probe_clips(&mut p);
         return Ok((p, lost_slides));
     }
     if deckcraft_pptx::is_encrypted(bytes) {
@@ -178,6 +183,42 @@ fn open_other(name: &str, bytes: &[u8]) -> Result<(Presentation, Vec<String>)> {
     Err(EngineError::Other(format!("{name}: not a presentation DeckCraft can read")))
 }
 
+/// Fill in each audio and video clip's length and picture size from its bytes: a `.pptx` doesn't
+/// store them. Headers only, so opening never decodes a whole audio file.
+fn probe_clips(p: &mut Presentation) {
+    fn rec(shapes: &mut [Shape], media: &[MediaItem], probed: &mut HashMap<MediaId, Option<MediaInfo>>, depth: usize) {
+        if depth > 64 {
+            return;
+        }
+        for s in shapes {
+            if let ShapeKind::Media(m) = &mut s.kind
+                && (m.duration_ms == 0 || m.width == 0 && m.height == 0)
+                && let Some(info) = probed
+                    .entry(m.media)
+                    .or_insert_with(|| media.iter().find(|i| i.id == m.media).and_then(|i| deckcraft_media::probe_headers(&i.data).ok()))
+            {
+                if m.duration_ms == 0 {
+                    m.duration_ms = info.duration_ms.min(u32::MAX as u64) as u32;
+                }
+                if m.width == 0
+                    && m.height == 0
+                    && let Some(v) = &info.video
+                {
+                    (m.width, m.height) = (v.width, v.height);
+                }
+            }
+            if let Some(children) = s.children_mut() {
+                rec(children, media, probed, depth + 1);
+            }
+        }
+    }
+    let mut probed = HashMap::new();
+    // Just read, so no slide is shared yet and `make_mut` doesn't copy.
+    for slide in &mut p.slides {
+        rec(&mut Arc::make_mut(slide).shapes, &p.media, &mut probed, 0);
+    }
+}
+
 pub fn add_opened(s: &mut Session, name: &str, path: Option<String>, p: Presentation) -> usize {
     let title = std::path::Path::new(name).file_stem().map(|n| n.to_string_lossy().to_string()).unwrap_or_else(|| name.to_string());
     crate::fonts::install_embedded_fonts(&p);

crates/engine/src/cmd/insert.rs

@@ -1761,6 +1761,39 @@ fn chart_data(s: &mut Session, p: &Value) -> Result<Value> {
     })
 }
 
+fn apply_bin_options(c: &mut deckcraft_model::chart::Chart, bin_count: Option<Option<u32>>, bin_size: Option<Option<f64>>) {
+    if let Some(n) = bin_count {
+        c.bin_count = n;
+        if n.is_some() {
+            c.bin_size = None;
+        }
+    }
+    if let Some(w) = bin_size {
+        c.bin_size = w;
+        if w.is_some() {
+            c.bin_count = None;
+        }
+    }
+}
+
+fn apply_subtotals_and_bars(c: &mut deckcraft_model::chart::Chart, p: &Value, subtotals: Option<&[usize]>) {
+    if let Some(t) = subtotals {
+        let n = c.series.first().map_or(0, |s| s.values.len());
+        let mut t: Vec<usize> = t.iter().copied().filter(|i| *i < n).collect();
+        t.sort_unstable();
+        t.dedup();
+        c.subtotals = t;
+    }
+    if let Some(b) = p.get("upDownBars").and_then(Value::as_bool) {
+        c.up_down_bars = b;
+        c.raw = None;
+    }
+    if let Some(q) = p.get("quartiles").and_then(Value::as_str) {
+        c.inclusive_quartiles = q.eq_ignore_ascii_case("inclusive");
+        c.raw = None;
+    }
+}
+
 fn chart_options(s: &mut Session, p: &Value) -> Result<Value> {
     // Histogram bins: a count or a width (setting one clears the other; null for automatic).
     let bin_count = p.get("binCount").map(|v| v.as_u64().map(|n| n.clamp(1, deckcraft_model::chart::MAX_BINS as u64) as u32));
@@ -1772,33 +1805,8 @@ fn chart_options(s: &mut Session, p: &Value) -> Result<Value> {
     let subtotals: Option<Vec<usize>> =
         p.get("subtotals").and_then(Value::as_array).map(|a| a.iter().filter_map(Value::as_u64).map(|i| i as usize).collect());
     with_chart(s, p, "chart.options", |c| {
-        if let Some(n) = bin_count {
-            c.bin_count = n;
-            if n.is_some() {
-                c.bin_size = None;
-            }
-        }
-        if let Some(w) = bin_size {
-            c.bin_size = w;
-            if w.is_some() {
-                c.bin_count = None;
-            }
-        }
-        if let Some(t) = &subtotals {
-            let n = c.series.first().map_or(0, |s| s.values.len());
-            let mut t: Vec<usize> = t.iter().copied().filter(|i| *i < n).collect();
-            t.sort_unstable();
-            t.dedup();
-            c.subtotals = t;
-        }
-        if let Some(b) = p.get("upDownBars").and_then(Value::as_bool) {
-            c.up_down_bars = b;
-            c.raw = None;
-        }
-        if let Some(q) = p.get("quartiles").and_then(Value::as_str) {
-            c.inclusive_quartiles = q.eq_ignore_ascii_case("inclusive");
-            c.raw = None;
-        }
+        apply_bin_options(c, bin_count, bin_size);
+        apply_subtotals_and_bars(c, p, subtotals.as_deref());
         if bin_count.is_some() || bin_size.is_some() || subtotals.is_some() {
             c.raw = None;
         }

crates/engine/src/cmd/media.rs

@@ -228,6 +228,21 @@ mod tests {
         assert!(s.execute("media.posterFrame", &json!({})).is_err(), "audio has no poster frame");
     }
 
+    #[test]
+    fn a_video_reopened_from_pptx_keeps_its_length_and_size() {
+        let mut s = Session::with_new();
+        let clip = include_bytes!("../../../media/tests/fixtures/clip-h264.mp4");
+        s.execute("insert.video", &json!({"name": "clip.mp4", "data": base64_encode(clip)})).expect("insert");
+        let before = s.execute("media.info", &json!({})).expect("info");
+        assert!(before["durationMs"].as_u64().is_some_and(|ms| ms > 0));
+        let saved = s.execute("file.saveBytes", &json!({"format": "pptx"})).expect("save");
+        s.execute("file.openBytes", &json!({"name": "deck.pptx", "data": saved["data"]})).expect("open");
+        let after = s.execute("media.info", &json!({})).expect("info");
+        for key in ["durationMs", "width", "height"] {
+            assert_eq!(after[key], before[key], "{key}");
+        }
+    }
+
     #[test]
     fn media_commands_need_media() {
         let mut s = Session::with_new();

crates/engine/src/cmd/slide.rs

@@ -539,9 +539,9 @@ fn section_add(s: &mut Session, p: &Value) -> Result<Value> {
         if doc.sections.is_empty() {
             // The slides before `at` go into a "Default Section".
             if at > 0 {
-                doc.sections.push(Section { name: "Default Section".into(), slides: ids.get(..at).map(|x| x.to_vec()).unwrap_or_default() });
+                doc.sections.push(Section { name: "Default Section".into(), slides: ids.get(..at).map(<[_]>::to_vec).unwrap_or_default() });
             }
-            doc.sections.push(Section { name, slides: ids.get(at..).map(|x| x.to_vec()).unwrap_or_default() });
+            doc.sections.push(Section { name, slides: ids.get(at..).map(<[_]>::to_vec).unwrap_or_default() });
         } else {
             let Some(start) = ids.get(at).copied() else { return Err(bad("section.add", "no slide")) };
             let si = doc.section_of(start).unwrap_or(0);

crates/engine/src/guard.rs

@@ -13,7 +13,7 @@ use crate::{EngineError, Result, Session};
 pub fn panic_message(payload: &(dyn std::any::Any + Send)) -> String {
     payload
         .downcast_ref::<&str>()
-        .map(|s| s.to_string())
+        .map(ToString::to_string)
         .or_else(|| payload.downcast_ref::<String>().cloned())
         .unwrap_or_else(|| "unknown panic".into())
 }

crates/engine/src/icons.rs

@@ -60,7 +60,7 @@ pub fn stroke_width(icon: &Icon, w: f64, h: f64) -> f64 {
 }
 
 fn parsed() -> &'static HashMap<&'static str, BezPath> {
-    static CACHE: OnceLock<HashMap<&'static str, BezPath>> = OnceLock::new();
+    static CACHE: OnceLock<HashMap<&str, BezPath>> = OnceLock::new();
     CACHE.get_or_init(|| {
         let mut m = HashMap::new();
         for icon in ICONS {

crates/engine/src/recovery.rs

@@ -152,13 +152,13 @@ pub fn list(dir: &Path) -> Vec<(u64, Value)> {
     let Ok(rd) = std::fs::read_dir(dir) else { return out };
     for e in rd.flatten() {
         let p = e.path();
-        if p.extension().and_then(|x| x.to_str()) != Some("deckcraft") {
+        if p.extension().and_then(std::ffi::OsStr::to_str) != Some("deckcraft") {
             continue;
         }
         if !std::fs::metadata(&p).is_ok_and(|m| m.is_file()) {
             continue;
         }
-        let Some(uid) = p.file_stem().and_then(|s| s.to_str()).and_then(|s| s.parse::<u64>().ok()) else { continue };
+        let Some(uid) = p.file_stem().and_then(std::ffi::OsStr::to_str).and_then(|s| s.parse::<u64>().ok()) else { continue };
         // Metadata is a file on disk: anything but an object (corrupt, hand-edited) counts as none.
         let meta = read_regular(&p.with_extension("json"), MAX_META_BYTES)
             .and_then(|t| serde_json::from_slice::<Value>(&t).ok())

crates/fonts/Cargo.toml

@@ -15,4 +15,4 @@ harfrust = { workspace = true }
 unicode-bidi = { workspace = true }
 log = { workspace = true }
 # Last-resort face only (Ubuntu Light); no UI code.
-epaint_default_fonts = "0.37"
+epaint_default_fonts = "0.36"

crates/fonts/src/fontdb.rs

@@ -161,12 +161,12 @@ pub struct FaceRef(&'static FontFace);
 impl FaceRef {
     /// The handle for a loaded face (memoised per face).
     pub fn of(face: &Arc<FontFace>) -> FaceRef {
-        static LEAKED: RwLock<Vec<Option<&'static FontFace>>> = RwLock::new(Vec::new());
+        static LEAKED: RwLock<Vec<Option<&FontFace>>> = RwLock::new(Vec::new());
         let id = face.id as usize;
-        if let Some(Some(f)) = LEAKED.read().unwrap_or_else(|e| e.into_inner()).get(id) {
+        if let Some(Some(f)) = LEAKED.read().unwrap_or_else(std::sync::PoisonError::into_inner).get(id) {
             return FaceRef(f);
         }
-        let mut w = LEAKED.write().unwrap_or_else(|e| e.into_inner());
+        let mut w = LEAKED.write().unwrap_or_else(std::sync::PoisonError::into_inner);
         if w.len() <= id {
             w.resize(id + 1, None);
         }
@@ -743,7 +743,7 @@ pub fn base_style(style: &str) -> &str {
 }
 
 fn norm(s: &str) -> String {
-    s.chars().filter(|c| c.is_alphanumeric()).flat_map(|c| c.to_lowercase()).collect()
+    s.chars().filter(|c| c.is_alphanumeric()).flat_map(char::to_lowercase).collect()
 }
 
 /// Weight implied by a style name.
@@ -807,7 +807,7 @@ impl FontDb {
     pub fn set_system_fallback(&self, on: bool) {
         #[cfg(not(target_arch = "wasm32"))]
         {
-            self.sys.lock().unwrap_or_else(|e| e.into_inner()).enabled = on;
+            self.sys.lock().unwrap_or_else(std::sync::PoisonError::into_inner).enabled = on;
         }
         #[cfg(target_arch = "wasm32")]
         let _ = on;
@@ -822,14 +822,14 @@ impl FontDb {
     }
 
     pub(crate) fn read_faces(&self) -> std::sync::RwLockReadGuard<'_, Vec<Arc<FontFace>>> {
-        self.faces.read().unwrap_or_else(|e| e.into_inner())
+        self.faces.read().unwrap_or_else(std::sync::PoisonError::into_inner)
     }
 
     /// The system font catalog, scanned first if it hasn't been yet.
     #[cfg(not(target_arch = "wasm32"))]
     fn read_catalog(&self) -> std::sync::RwLockReadGuard<'_, Vec<CatalogEntry>> {
         self.ensure_catalog();
-        self.catalog.read().unwrap_or_else(|e| e.into_inner())
+        self.catalog.read().unwrap_or_else(std::sync::PoisonError::into_inner)
     }
 
     /// Family names available (loaded plus cataloged system fonts), sorted and deduplicated.
@@ -885,7 +885,7 @@ impl FontDb {
                 }
             }
         }
-        let mut faces = self.faces.write().unwrap_or_else(|e| e.into_inner());
+        let mut faces = self.faces.write().unwrap_or_else(std::sync::PoisonError::into_inner);
         let mut added = 0;
         for f in new {
             // Checked again under the lock: another thread may have added the same face.
@@ -923,7 +923,7 @@ impl FontDb {
     #[cfg(not(target_arch = "wasm32"))]
     pub fn load_system_fonts(&self) -> usize {
         // Families load again from the new catalog when next looked up.
-        self.loaded_families.lock().unwrap_or_else(|e| e.into_inner()).clear();
+        self.loaded_families.lock().unwrap_or_else(std::sync::PoisonError::into_inner).clear();
         // The first scan, or a rescan once it is done (never both at once).
         let mut first = None;
         self.cataloged.get_or_init(|| first = Some(self.scan_font_dirs()));
@@ -959,7 +959,7 @@ impl FontDb {
                     }
                     continue;
                 }
-                let ext = p.extension().and_then(|e| e.to_str()).map(|e| e.to_ascii_lowercase());
+                let ext = p.extension().and_then(std::ffi::OsStr::to_str).map(str::to_ascii_lowercase);
                 if !matches!(ext.as_deref(), Some("ttf" | "otf" | "ttc" | "otc")) {
                     continue;
                 }
@@ -975,7 +975,7 @@ impl FontDb {
         }
         let n = found.len();
         log::debug!("cataloged {n} system font faces");
-        *self.catalog.write().unwrap_or_else(|e| e.into_inner()) = found;
+        *self.catalog.write().unwrap_or_else(std::sync::PoisonError::into_inner) = found;
         n
     }
 
@@ -983,7 +983,7 @@ impl FontDb {
     /// it is loaded.
     #[cfg(not(target_arch = "wasm32"))]
     fn load_cataloged(&self, family: &str) -> bool {
-        let loading = self.loading.lock().unwrap_or_else(|e| e.into_inner());
+        let loading = self.loading.lock().unwrap_or_else(std::sync::PoisonError::into_inner);
         self.load_family(family, &loading)
     }
 
@@ -1047,7 +1047,7 @@ impl FontDb {
         // them rather than finding none and falling back to another family.
         #[cfg(not(target_arch = "wasm32"))]
         {
-            let mut loaded = self.loaded_families.lock().unwrap_or_else(|e| e.into_inner());
+            let mut loaded = self.loaded_families.lock().unwrap_or_else(std::sync::PoisonError::into_inner);
             let key = family.to_lowercase();
             if !loaded.contains(&key) {
                 self.load_cataloged(family);
@@ -1112,7 +1112,7 @@ impl FontDb {
         }
         let f = make_face(base.bytes.clone(), base.index, base.family.clone(), style.to_string(), coords)?;
         let f = Arc::new(f);
-        self.faces.write().unwrap_or_else(|e| e.into_inner()).push(f.clone());
+        self.faces.write().unwrap_or_else(std::sync::PoisonError::into_inner).push(f.clone());
         Some(f)
     }
 
@@ -1214,20 +1214,20 @@ impl FontDb {
         }
         let seen = self.read_faces().len();
         {
-            let sys = self.sys.lock().unwrap_or_else(|e| e.into_inner());
+            let sys = self.sys.lock().unwrap_or_else(std::sync::PoisonError::into_inner);
             if !sys.enabled || sys.misses.contains(&c) {
                 return false;
             }
         }
         let covered = |db: &FontDb| db.read_faces().iter().any(|f| f.covers(c) && accept(f));
         let cataloged: Vec<String> = self.read_catalog().iter().map(|e| e.family.clone()).collect();
-        let loading = self.loading.lock().unwrap_or_else(|e| e.into_inner());
+        let loading = self.loading.lock().unwrap_or_else(std::sync::PoisonError::into_inner);
         // Another thread may have loaded a face for `c` (faces are only ever added), or found
         // there is none, while this one waited.
         if self.read_faces().len() != seen && covered(self) {
             return true;
         }
-        if self.sys.lock().unwrap_or_else(|e| e.into_inner()).misses.contains(&c) {
+        if self.sys.lock().unwrap_or_else(std::sync::PoisonError::into_inner).misses.contains(&c) {
             return false;
         }
         for fam in SYSTEM_FALLBACKS {
@@ -1238,7 +1238,8 @@ impl FontDb {
                 }
             }
         }
-        let mut paths: Vec<std::path::PathBuf> = self.catalog.read().unwrap_or_else(|e| e.into_inner()).iter().map(|e| e.path.clone()).collect();
+        let mut paths: Vec<std::path::PathBuf> =
+            self.catalog.read().unwrap_or_else(std::sync::PoisonError::into_inner).iter().map(|e| e.path.clone()).collect();
         paths.sort();
         paths.dedup();
         for p in paths {
@@ -1253,7 +1254,7 @@ impl FontDb {
             }
         }
         if remember_miss {
-            self.sys.lock().unwrap_or_else(|e| e.into_inner()).misses.insert(c);
+            self.sys.lock().unwrap_or_else(std::sync::PoisonError::into_inner).misses.insert(c);
         }
         false
     }
@@ -1326,10 +1327,10 @@ impl FontDb {
         if c.is_control() || c.is_whitespace() {
             return false;
         }
-        if !self.sys.lock().unwrap_or_else(|e| e.into_inner()).enabled {
+        if !self.sys.lock().unwrap_or_else(std::sync::PoisonError::into_inner).enabled {
             return false;
         }
-        if MISSES.lock().unwrap_or_else(|e| e.into_inner()).get_or_insert_with(Default::default).contains(&c) {
+        if MISSES.lock().unwrap_or_else(std::sync::PoisonError::into_inner).get_or_insert_with(Default::default).contains(&c) {
             return false;
         }
         let mut paths: Vec<std::path::PathBuf> = self.read_catalog().iter().map(|e| e.path.clone()).collect();
@@ -1347,7 +1348,7 @@ impl FontDb {
                 return true;
             }
         }
-        MISSES.lock().unwrap_or_else(|e| e.into_inner()).get_or_insert_with(Default::default).insert(c);
+        MISSES.lock().unwrap_or_else(std::sync::PoisonError::into_inner).get_or_insert_with(Default::default).insert(c);
         false
     }
 
@@ -1359,12 +1360,12 @@ impl FontDb {
             return false;
         }
         {
-            let sys = self.sys.lock().unwrap_or_else(|e| e.into_inner());
+            let sys = self.sys.lock().unwrap_or_else(std::sync::PoisonError::into_inner);
             if !sys.enabled {
                 return false;
             }
         }
-        if MISSES.lock().unwrap_or_else(|e| e.into_inner()).get_or_insert_with(Default::default).contains(&c) {
+        if MISSES.lock().unwrap_or_else(std::sync::PoisonError::into_inner).get_or_insert_with(Default::default).contains(&c) {
             return false;
         }
         let mut paths: Vec<std::path::PathBuf> = self.read_catalog().iter().map(|e| e.path.clone()).collect();
@@ -1382,14 +1383,14 @@ impl FontDb {
                 return true;
             }
         }
-        MISSES.lock().unwrap_or_else(|e| e.into_inner()).get_or_insert_with(Default::default).insert(c);
+        MISSES.lock().unwrap_or_else(std::sync::PoisonError::into_inner).get_or_insert_with(Default::default).insert(c);
         false
     }
 
     /// Glyph outline in font units, y-down (flipped), cached per (face, glyph).
     pub fn outline(&self, face: &FontFace, gid: u32) -> Arc<BezPath> {
         let key = (face.id, gid);
-        if let Some(p) = self.outlines.lock().unwrap_or_else(|e| e.into_inner()).get(&key) {
+        if let Some(p) = self.outlines.lock().unwrap_or_else(std::sync::PoisonError::into_inner).get(&key) {
             return p.clone();
         }
         let mut pen = FlipPen(BezPath::new());
@@ -1399,7 +1400,7 @@ impl FontDb {
             let _ = g.draw(DrawSettings::unhinted(Size::unscaled(), face.location()), &mut pen);
         }
         let p = Arc::new(pen.0);
-        let mut cache = self.outlines.lock().unwrap_or_else(|e| e.into_inner());
+        let mut cache = self.outlines.lock().unwrap_or_else(std::sync::PoisonError::into_inner);
         if cache.len() >= OUTLINE_CACHE_MAX {
             cache.clear();
         }

crates/format/src/lib.rs

@@ -1070,33 +1070,33 @@ mod tests {
             assert_eq!(md_list_item(not), None, "{not:?}");
         }
     }
-}
 
-/// #814: slides_to_outline includes table cell text, which it used to skip.
-#[test]
-fn outline_includes_table_text() {
-    use deckcraft_model::table::{Cell, Row, Table};
-    use deckcraft_model::{Shape, ShapeKind, Xfrm};
-    let mut p = defaults::new_presentation(None);
-    let layout = defaults::layout_of_kind(&p, LayoutType::TitleAndContent).unwrap();
-    let mut s = defaults::new_slide(&mut p, layout).expect("slide");
-    s.shapes.retain(|sh| !sh.ph_type().is_some_and(|k| k.is_title()));
-    let mut body = Shape { xfrm: Some(Xfrm::new(0.0, 0.0, 600.0, 100.0)), ..Default::default() };
-    body.text = Some(TextBody::from_text("Text box body"));
-    s.shapes.push(body);
+    /// #814: slides_to_outline includes table cell text, which it used to skip.
+    #[test]
+    fn outline_includes_table_text() {
+        use deckcraft_model::table::{Cell, Row, Table};
+        use deckcraft_model::{Shape, ShapeKind, Xfrm};
+        let mut p = defaults::new_presentation(None);
+        let layout = defaults::layout_of_kind(&p, LayoutType::TitleAndContent).unwrap();
+        let mut s = defaults::new_slide(&mut p, layout).expect("slide");
+        s.shapes.retain(|sh| !sh.ph_type().is_some_and(|k| k.is_title()));
+        let mut body = Shape { xfrm: Some(Xfrm::new(0.0, 0.0, 600.0, 100.0)), ..Default::default() };
+        body.text = Some(TextBody::from_text("Text box body"));
+        s.shapes.push(body);
 
-    let mut table = Table { cols: vec![200.0, 200.0], ..Default::default() };
-    for texts in [["Cell A1", "Cell B1"], ["Cell A2", "Cell B2"]] {
-        let cells: Vec<Cell> = texts.iter().map(|t| Cell { text: TextBody::from_text(t), ..Default::default() }).collect();
-        table.rows.push(Row { height: 30.0, cells });
+        let mut table = Table { cols: vec![200.0, 200.0], ..Default::default() };
+        for texts in [["Cell A1", "Cell B1"], ["Cell A2", "Cell B2"]] {
+            let cells: Vec<Cell> = texts.iter().map(|t| Cell { text: TextBody::from_text(t), ..Default::default() }).collect();
+            table.rows.push(Row { height: 30.0, cells });
+        }
+        let mut tbl = Shape { xfrm: Some(Xfrm::new(0.0, 100.0, 400.0, 60.0)), ..Default::default() };
+        tbl.kind = ShapeKind::Table(table);
+        s.shapes.push(tbl);
+        p.slides = vec![std::sync::Arc::new(s)];
+
+        let out = slides_to_outline(&p);
+        assert!(out.contains("Text box body"), "{out}");
+        assert!(out.contains("Cell A1\tCell B1"), "{out}");
+        assert!(out.contains("Cell A2\tCell B2"), "{out}");
     }
-    let mut tbl = Shape { xfrm: Some(Xfrm::new(0.0, 100.0, 400.0, 60.0)), ..Default::default() };
-    tbl.kind = ShapeKind::Table(table);
-    s.shapes.push(tbl);
-    p.slides = vec![std::sync::Arc::new(s)];
-
-    let out = slides_to_outline(&p);
-    assert!(out.contains("Text box body"), "{out}");
-    assert!(out.contains("Cell A1\tCell B1"), "{out}");
-    assert!(out.contains("Cell A2\tCell B2"), "{out}");
 }

crates/media/Cargo.toml

@@ -22,4 +22,4 @@ log = { workspace = true }
 image = { workspace = true }
 # Audio decoding for the formats we have no decoder of our own for (MPL-2.0, used unmodified,
 # as in FilmCraft).
-symphonia = { version = "0.6.1", default-features = false, features = ["aac", "adpcm", "alac", "flac", "mp1", "mp2", "mp3", "pcm", "vorbis", "wav", "aiff", "caf", "ogg", "mkv", "isomp4"] }
+symphonia = { version = "0.5.5", default-features = false, features = ["aac", "adpcm", "alac", "flac", "mp1", "mp2", "mp3", "pcm", "vorbis", "wav", "aiff", "caf", "ogg", "mkv", "isomp4"] }

crates/media/src/lib.rs

@@ -31,7 +31,7 @@ pub use audio::Pcm;
 pub use clip::ClipParams;
 pub use feed::VideoFeed;
 pub use player::{AudioOut, PlayState, Player, VoiceSpec, VoiceStatus};
-pub use probe::{AudioInfo, MediaInfo, VideoInfo, probe};
+pub use probe::{AudioInfo, MediaInfo, VideoInfo, probe, probe_headers};
 pub use video::{Frame, VideoDecoder, poster_frame, poster_png};
 
 /// Shared media bytes (the model's `MediaItem::data`).

crates/media/src/player.rs

@@ -254,7 +254,7 @@ impl Player {
     }
 
     fn with<R>(&self, f: impl FnOnce(&mut Mixer) -> R) -> R {
-        let mut g = self.mixer.lock().unwrap_or_else(|e| e.into_inner());
+        let mut g = self.mixer.lock().unwrap_or_else(std::sync::PoisonError::into_inner);
         f(&mut g)
     }
 

crates/media/src/probe.rs

@@ -48,6 +48,19 @@ fn ms(secs: f64) -> u64 {
 
 /// Probe `bytes`.
 pub fn probe(bytes: &Bytes) -> Result<MediaInfo> {
+    let mut info = probe_headers(bytes)?;
+    if info.duration_ms == 0 && info.audio.as_ref().is_some_and(|a| a.decodable) && info.video.is_none() {
+        // No length in the header (raw MP3 / ADTS without an index): decode to measure.
+        if let Ok(pcm) = crate::audio::decode(bytes) {
+            info.duration_ms = ms(pcm.duration());
+        }
+    }
+    Ok(info)
+}
+
+/// [`probe`] from the headers alone, without decoding: a raw MP3 or ADTS stream without an
+/// index reports a `duration_ms` of 0.
+pub fn probe_headers(bytes: &Bytes) -> Result<MediaInfo> {
     let c = Container::sniff(bytes);
     let mut info = match c {
         Container::Mp4 => probe_mp4(bytes)?,
@@ -73,12 +86,6 @@ pub fn probe(bytes: &Bytes) -> Result<MediaInfo> {
             info.duration_ms = ms(n as f64 / rate as f64);
         }
     }
-    if info.duration_ms == 0 && info.audio.as_ref().is_some_and(|a| a.decodable) && info.video.is_none() {
-        // No length in the header (raw MP3 / ADTS without an index): decode to measure.
-        if let Ok(pcm) = crate::audio::decode(bytes) {
-            info.duration_ms = ms(pcm.duration());
-        }
-    }
     Ok(info)
 }
 

crates/metafile/src/emfplus.rs

@@ -1187,7 +1187,7 @@ fn image(r: Bytes) -> Option<ImageData> {
 fn metafile(r: Bytes) -> Option<Picture> {
     let size = r.u32(12)? as usize;
     let data = r.slice(16, size).or_else(|| r.tail(16).map(|t| t.0))?;
-    let depth = NESTING.with(|n| n.get());
+    let depth = NESTING.with(std::cell::Cell::get);
     if depth >= MAX_NESTING {
         return None;
     }

crates/metafile/src/tests.rs

@@ -1716,7 +1716,7 @@ fn plus_pic(recs: Vec<Vec<u8>>) -> Picture {
 }
 
 fn u16s(s: &str) -> Vec<u8> {
-    s.encode_utf16().flat_map(|u| u.to_le_bytes()).collect()
+    s.encode_utf16().flat_map(u16::to_le_bytes).collect()
 }
 
 /// A 2 x 2 32bpp ARGB bitmap image object: red, green / blue, white.

crates/model/src/chart.rs

@@ -491,50 +491,66 @@ impl Default for Chart {
 }
 
 impl Chart {
+    fn sample_treemap_sunburst(kind: ChartType) -> Self {
+        let mut c = Chart {
+            kind,
+            categories: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug"].iter().map(ToString::to_string).collect(),
+            category_levels: vec![["Q1", "Q1", "Q1", "Q2", "Q2", "Q2", "Q3", "Q3"].iter().map(ToString::to_string).collect()],
+            vary_colors: true,
+            ..Default::default()
+        };
+        let v = [4.2, 2.8, 3.6, 4.7, 2.6, 4.1, 1.9, 3.0];
+        c.series.push(Series { name: "Series 1".into(), values: v.iter().map(|x| Some(*x)).collect(), ..Default::default() });
+        c
+    }
+
+    fn sample_observation_chart(kind: ChartType) -> Self {
+        let obs = [12.0, 15.0, 17.0, 18.0, 21.0, 22.0, 22.0, 24.0, 25.0, 27.0, 28.0, 31.0, 33.0, 36.0, 41.0, 48.0];
+        let n_series = if kind == ChartType::BoxWhisker { 2 } else { 1 };
+        let categories = if kind == ChartType::BoxWhisker {
+            (0..obs.len()).map(|i| if i % 2 == 0 { "Group A" } else { "Group B" }.to_string()).collect()
+        } else {
+            vec![]
+        };
+        let mut c =
+            Chart { kind, categories, gridlines: true, legend: (kind == ChartType::BoxWhisker).then(|| "b".to_string()), ..Default::default() };
+        for s in 0..n_series {
+            c.series.push(Series {
+                name: format!("Series {}", s + 1),
+                values: obs.iter().map(|v| Some(v + s as f64 * 6.0)).collect(),
+                ..Default::default()
+            });
+        }
+        c
+    }
+
+    fn sample_stock() -> Self {
+        let mut c = Chart {
+            kind: ChartType::Stock,
+            categories: ["Mon", "Tue", "Wed", "Thu", "Fri"].iter().map(ToString::to_string).collect(),
+            ..Default::default()
+        };
+        let hlc = [("High", [55.0, 57.0, 57.0, 58.0, 58.0]), ("Low", [11.0, 12.0, 13.0, 11.0, 25.0]), ("Close", [25.0, 38.0, 50.0, 35.0, 43.0])];
+        for (name, v) in hlc {
+            c.series.push(Series { name: name.into(), values: v.iter().map(|x| Some(*x)).collect(), ..Default::default() });
+        }
+        c
+    }
+
     /// The sample data a new chart starts with (our own numbers).
     pub fn sample(kind: ChartType) -> Self {
-        let cats = ["Q1", "Q2", "Q3", "Q4"];
-        let data = [[4.2, 2.6, 2.1], [2.8, 4.1, 2.4], [3.6, 1.9, 3.3], [4.7, 3.0, 5.1]];
-        let mut c = Chart { kind, categories: cats.iter().map(|s| s.to_string()).collect(), ..Default::default() };
         if matches!(kind, ChartType::Treemap | ChartType::Sunburst) {
-            // A two-level hierarchy: months inside quarters.
-            c.categories = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug"].iter().map(|s| s.to_string()).collect();
-            c.category_levels = vec![["Q1", "Q1", "Q1", "Q2", "Q2", "Q2", "Q3", "Q3"].iter().map(|s| s.to_string()).collect()];
-            let v = [4.2, 2.8, 3.6, 4.7, 2.6, 4.1, 1.9, 3.0];
-            c.series.push(Series { name: "Series 1".into(), values: v.iter().map(|x| Some(*x)).collect(), ..Default::default() });
-            c.vary_colors = true;
-            return c;
+            return Self::sample_treemap_sunburst(kind);
         }
         if matches!(kind, ChartType::Histogram | ChartType::Pareto | ChartType::BoxWhisker) {
-            // These plot raw observations: a histogram bins one series, a box chart summarises
-            // each category's points.
-            let obs = [12.0, 15.0, 17.0, 18.0, 21.0, 22.0, 22.0, 24.0, 25.0, 27.0, 28.0, 31.0, 33.0, 36.0, 41.0, 48.0];
-            let n_series = if kind == ChartType::BoxWhisker { 2 } else { 1 };
-            c.categories = if kind == ChartType::BoxWhisker {
-                (0..obs.len()).map(|i| if i % 2 == 0 { "Group A" } else { "Group B" }.to_string()).collect()
-            } else {
-                vec![]
-            };
-            for s in 0..n_series {
-                c.series.push(Series {
-                    name: format!("Series {}", s + 1),
-                    values: obs.iter().map(|v| Some(v + s as f64 * 6.0)).collect(),
-                    ..Default::default()
-                });
-            }
-            c.gridlines = true;
-            c.legend = (kind == ChartType::BoxWhisker).then(|| "b".to_string());
-            return c;
+            return Self::sample_observation_chart(kind);
         }
         if kind == ChartType::Stock {
-            // High-low-close over five days, the series in the order PowerPoint expects.
-            c.categories = ["Mon", "Tue", "Wed", "Thu", "Fri"].iter().map(|s| s.to_string()).collect();
-            let hlc = [("High", [55.0, 57.0, 57.0, 58.0, 58.0]), ("Low", [11.0, 12.0, 13.0, 11.0, 25.0]), ("Close", [25.0, 38.0, 50.0, 35.0, 43.0])];
-            for (name, v) in hlc {
-                c.series.push(Series { name: name.into(), values: v.iter().map(|x| Some(*x)).collect(), ..Default::default() });
-            }
-            return c;
+            return Self::sample_stock();
         }
+        let cats = ["Q1", "Q2", "Q3", "Q4"];
+        let data = [[4.2, 2.6, 2.1], [2.8, 4.1, 2.4], [3.6, 1.9, 3.3], [4.7, 3.0, 5.1]];
+        let mut c = Chart { kind, categories: cats.iter().map(ToString::to_string).collect(), ..Default::default() };
         let n_series =
             if matches!(kind, ChartType::Pie | ChartType::Doughnut | ChartType::Funnel | ChartType::Waterfall | ChartType::Treemap) { 1 } else { 3 };
         for s in 0..n_series {
@@ -699,38 +715,52 @@ impl Chart {
         crate::numfmt::format(code.map_or("General", String::as_str), v, self.lang.as_deref())
     }
 
-    /// Value range across series (stacked sums for stacked types).
-    pub fn value_range(&self) -> (f64, f64) {
+    fn waterfall_value_range(&self) -> (f64, f64) {
         let mut lo: f64 = 0.0;
         let mut hi: f64 = 0.0;
-        if self.kind == ChartType::Waterfall {
-            for (a, b) in self.waterfall_bars() {
-                lo = lo.min(a.min(b));
-                hi = hi.max(a.max(b));
+        for (a, b) in self.waterfall_bars() {
+            lo = lo.min(a.min(b));
+            hi = hi.max(a.max(b));
+        }
+        (lo, hi)
+    }
+
+    fn stacked_value_range(&self, n: usize) -> (f64, f64) {
+        let mut lo: f64 = 0.0;
+        let mut hi: f64 = 0.0;
+        for i in 0..n {
+            let (mut p, mut m) = (0.0, 0.0);
+            for s in &self.series {
+                let v = s.values.get(i).copied().flatten().unwrap_or(0.0);
+                if v >= 0.0 { p += v } else { m += v }
             }
-            return (lo, hi);
+            hi = hi.max(p);
+            lo = lo.min(m);
+        }
+        (lo, hi)
+    }
+
+    /// Value range across series (stacked sums for stacked types).
+    pub fn value_range(&self) -> (f64, f64) {
+        if self.kind == ChartType::Waterfall {
+            return self.waterfall_value_range();
         }
         let n = self.categories.len().max(self.series.iter().map(|s| s.values.len()).max().unwrap_or(0));
-        if self.kind.stacked() {
-            for i in 0..n {
-                let (mut p, mut m) = (0.0, 0.0);
-                for s in &self.series {
-                    let v = s.values.get(i).copied().flatten().unwrap_or(0.0);
-                    if v >= 0.0 { p += v } else { m += v }
-                }
-                hi = hi.max(p);
-                lo = lo.min(m);
-            }
+        let (mut lo, mut hi) = if self.kind.stacked() {
+            self.stacked_value_range(n)
         } else {
+            let mut l: f64 = 0.0;
+            let mut h: f64 = 0.0;
             for s in &self.series {
                 for v in s.values.iter().flatten() {
                     if v.is_finite() {
-                        hi = hi.max(*v);
-                        lo = lo.min(*v);
+                        h = h.max(*v);
+                        l = l.min(*v);
                     }
                 }
             }
-        }
+            (l, h)
+        };
         if self.kind.percent() {
             return (0.0, 1.0);
         }

crates/model/src/lib.rs

@@ -1066,13 +1066,13 @@ impl Presentation {
         self.slides.iter().position(|s| s.id == id)
     }
     pub fn slide(&self, id: SlideId) -> Option<&Slide> {
-        self.slides.iter().find(|s| s.id == id).map(|s| s.as_ref())
+        self.slides.iter().find(|s| s.id == id).map(AsRef::as_ref)
     }
     pub fn slide_mut(&mut self, id: SlideId) -> Option<&mut Slide> {
         self.slides.iter_mut().find(|s| s.id == id).map(Arc::make_mut)
     }
     pub fn slide_at(&self, i: usize) -> Option<&Slide> {
-        self.slides.get(i).map(|s| s.as_ref())
+        self.slides.get(i).map(AsRef::as_ref)
     }
     /// Master and layout for a layout id.
     pub fn layout(&self, id: LayoutId) -> Option<(&Master, &Layout)> {
@@ -1086,7 +1086,7 @@ impl Presentation {
         self.masters.first().map(|m| (m.as_ref(), m.layouts.first()))
     }
     pub fn first_master(&self) -> Option<&Master> {
-        self.masters.first().map(|m| m.as_ref())
+        self.masters.first().map(AsRef::as_ref)
     }
     pub fn media(&self, id: MediaId) -> Option<&MediaItem> {
         self.media.iter().find(|m| m.id == id)

crates/model/src/style.rs

@@ -275,7 +275,7 @@ pub enum Dash {
 }
 
 impl Dash {
-    pub const PRESETS: [&'static str; 11] =
+    pub const PRESETS: [&str; 11] =
         ["solid", "sysDot", "sysDash", "dash", "dashDot", "lgDash", "lgDashDot", "lgDashDotDot", "dot", "sysDashDot", "sysDashDotDot"];
     /// Dash/space lengths in multiples of the line width.
     pub fn pattern(&self) -> Vec<f64> {

crates/model/src/text.rs

@@ -530,7 +530,7 @@ impl Paragraph {
         true
     }
     pub fn text(&self) -> String {
-        self.runs.iter().map(|r| r.content()).collect()
+        self.runs.iter().map(Run::content).collect()
     }
     pub fn char_len(&self) -> usize {
         self.runs.iter().map(Run::char_len).sum()
@@ -576,7 +576,7 @@ pub struct ListStyle {
 
 impl ListStyle {
     pub fn level(&self, l: u8) -> Option<&LevelStyle> {
-        self.levels.get(l as usize).and_then(|x| x.as_ref())
+        self.levels.get(l as usize).and_then(Option::as_ref)
     }
     pub fn set(&mut self, l: u8, s: LevelStyle) {
         let i = (l as usize).min(8);

crates/model/src/trendline.rs

@@ -57,22 +57,7 @@ impl Trendline {
                 let yhat: Vec<f64> = xs.iter().map(|x| poly_y(&coeff, *x)).collect();
                 (Model::Poly(coeff), ys, yhat)
             }
-            TrendlineType::Exp => {
-                let pairs: Vec<(f64, f64)> = pairs.into_iter().filter(|(_, y)| *y > 0.0).collect();
-                if pairs.len() < 2 {
-                    return None;
-                }
-                let (xs, ln_y): (Vec<f64>, Vec<f64>) = pairs.iter().map(|(x, y)| (*x, y.ln())).unzip();
-                let fixed = intercept.filter(|c| *c > 0.0).map(|c| c.ln());
-                let (ln_c, b) = linreg(&xs, &ln_y, fixed)?;
-                let c = ln_c.exp();
-                if !c.is_finite() || c <= 0.0 {
-                    return None;
-                }
-                let ys: Vec<f64> = pairs.iter().map(|(_, y)| *y).collect();
-                let yhat: Vec<f64> = xs.iter().map(|x| c * (b * x).exp()).collect();
-                (Model::Exp { c, b }, ys, yhat)
-            }
+            TrendlineType::Exp => fit_exp(&pairs, intercept)?,
             TrendlineType::Log => {
                 let pairs: Vec<(f64, f64)> = pairs.into_iter().filter(|(x, _)| *x > 0.0).collect();
                 if pairs.len() < 2 {
@@ -83,43 +68,10 @@ impl Trendline {
                 let yhat: Vec<f64> = ln_x.iter().map(|u| b + c * u).collect();
                 (Model::Log { b, c }, ys, yhat)
             }
-            TrendlineType::Power => {
-                let pairs: Vec<(f64, f64)> = pairs.into_iter().filter(|(x, y)| *x > 0.0 && *y > 0.0).collect();
-                if pairs.len() < 2 {
-                    return None;
-                }
-                let (ln_x, ln_y): (Vec<f64>, Vec<f64>) = pairs.iter().map(|(x, y)| (x.ln(), y.ln())).unzip();
-                let fixed = intercept.filter(|c| *c > 0.0).map(|c| c.ln());
-                let (ln_c, b) = linreg(&ln_x, &ln_y, fixed)?;
-                let c = ln_c.exp();
-                if !c.is_finite() || c <= 0.0 {
-                    return None;
-                }
-                let ys: Vec<f64> = pairs.iter().map(|(_, y)| *y).collect();
-                let yhat: Vec<f64> = pairs.iter().map(|(x, _)| c * x.powf(b)).collect();
-                (Model::Power { c, b }, ys, yhat)
-            }
+            TrendlineType::Power => fit_power(&pairs, intercept)?,
             TrendlineType::MovingAvg => {
                 let period = self.period.unwrap_or(2).clamp(2, 255) as usize;
-                if pairs.len() <= period {
-                    return None;
-                }
-                let mut pts = Vec::new();
-                let mut ys = Vec::new();
-                let mut yhat = Vec::new();
-                for i in period - 1..pairs.len() {
-                    let window = &pairs[i + 1 - period..=i];
-                    let avg = window.iter().map(|(_, y)| y).sum::<f64>() / period as f64;
-                    if avg.is_finite() {
-                        pts.push((pairs[i].0, avg));
-                        ys.push(pairs[i].1);
-                        yhat.push(avg);
-                    }
-                }
-                if pts.len() < 2 {
-                    return None;
-                }
-                (Model::Moving(pts), ys, yhat)
+                fit_moving_avg(&pairs, period)?
             }
         };
         if yhat.iter().any(|v| !v.is_finite()) {
@@ -325,6 +277,89 @@ fn poly_y(coeff: &[f64], x: f64) -> f64 {
     acc
 }
 
+fn fit_exp(pairs: &[(f64, f64)], intercept: Option<f64>) -> Option<(Model, Vec<f64>, Vec<f64>)> {
+    let pairs: Vec<(f64, f64)> = pairs.iter().copied().filter(|(_, y)| *y > 0.0).collect();
+    if pairs.len() < 2 {
+        return None;
+    }
+    let (xs, ln_y): (Vec<f64>, Vec<f64>) = pairs.iter().map(|(x, y)| (*x, y.ln())).unzip();
+    let fixed = intercept.filter(|c| *c > 0.0).map(f64::ln);
+    let (ln_c, b) = linreg(&xs, &ln_y, fixed)?;
+    let c = ln_c.exp();
+    if !c.is_finite() || c <= 0.0 {
+        return None;
+    }
+    let ys: Vec<f64> = pairs.iter().map(|(_, y)| *y).collect();
+    let yhat: Vec<f64> = xs.iter().map(|x| c * (b * x).exp()).collect();
+    Some((Model::Exp { c, b }, ys, yhat))
+}
+
+fn fit_power(pairs: &[(f64, f64)], intercept: Option<f64>) -> Option<(Model, Vec<f64>, Vec<f64>)> {
+    let pairs: Vec<(f64, f64)> = pairs.iter().copied().filter(|(x, y)| *x > 0.0 && *y > 0.0).collect();
+    if pairs.len() < 2 {
+        return None;
+    }
+    let (ln_x, ln_y): (Vec<f64>, Vec<f64>) = pairs.iter().map(|(x, y)| (x.ln(), y.ln())).unzip();
+    let fixed = intercept.filter(|c| *c > 0.0).map(f64::ln);
+    let (ln_c, b) = linreg(&ln_x, &ln_y, fixed)?;
+    let c = ln_c.exp();
+    if !c.is_finite() || c <= 0.0 {
+        return None;
+    }
+    let ys: Vec<f64> = pairs.iter().map(|(_, y)| *y).collect();
+    let yhat: Vec<f64> = pairs.iter().map(|(x, _)| c * x.powf(b)).collect();
+    Some((Model::Power { c, b }, ys, yhat))
+}
+
+fn fit_moving_avg(pairs: &[(f64, f64)], period: usize) -> Option<(Model, Vec<f64>, Vec<f64>)> {
+    if pairs.len() <= period {
+        return None;
+    }
+    let mut pts = Vec::new();
+    let mut ys = Vec::new();
+    let mut yhat = Vec::new();
+    for i in period - 1..pairs.len() {
+        let window = &pairs[i + 1 - period..=i];
+        let avg = window.iter().map(|(_, y)| y).sum::<f64>() / period as f64;
+        if avg.is_finite() {
+            pts.push((pairs[i].0, avg));
+            ys.push(pairs[i].1);
+            yhat.push(avg);
+        }
+    }
+    if pts.len() < 2 {
+        return None;
+    }
+    Some((Model::Moving(pts), ys, yhat))
+}
+
+#[allow(clippy::needless_range_loop)]
+fn polyfit_with_intercept(xs: &[f64], ys: &[f64], order: usize, b0: f64) -> Option<Vec<f64>> {
+    let m = order;
+    let mut ata = vec![vec![0.0; m]; m];
+    let mut atb = vec![0.0; m];
+    for (x, y) in xs.iter().zip(ys) {
+        let dy = y - b0;
+        for i in 0..m {
+            let xi = x.powi((i + 1) as i32);
+            atb[i] += dy * xi;
+            for j in i..m {
+                ata[i][j] += xi * x.powi((j + 1) as i32);
+            }
+        }
+    }
+    for i in 0..m {
+        for j in 0..i {
+            ata[i][j] = ata[j][i];
+        }
+    }
+    let solved = solve(ata, atb)?;
+    let mut coeff = Vec::with_capacity(order + 1);
+    coeff.push(b0);
+    coeff.extend(solved);
+    coeff.iter().all(|v| v.is_finite()).then_some(coeff)
+}
+
 /// Polynomial through the normal equations. `x` is centred when the intercept is free, then
 /// expanded back to powers of `x`, so order 6 on category numbers stays solvable.
 #[allow(clippy::needless_range_loop)] // the index is the power in the normal equations
@@ -334,29 +369,7 @@ fn polyfit(xs: &[f64], ys: &[f64], order: usize, intercept: Option<f64>) -> Opti
         return None;
     }
     if let Some(b0) = intercept {
-        let m = order;
-        let mut ata = vec![vec![0.0; m]; m];
-        let mut atb = vec![0.0; m];
-        for (x, y) in xs.iter().zip(ys) {
-            let dy = y - b0;
-            for i in 0..m {
-                let xi = x.powi((i + 1) as i32);
-                atb[i] += dy * xi;
-                for j in i..m {
-                    ata[i][j] += xi * x.powi((j + 1) as i32);
-                }
-            }
-        }
-        for i in 0..m {
-            for j in 0..i {
-                ata[i][j] = ata[j][i];
-            }
-        }
-        let solved = solve(ata, atb)?;
-        let mut coeff = Vec::with_capacity(order + 1);
-        coeff.push(b0);
-        coeff.extend(solved);
-        return coeff.iter().all(|v| v.is_finite()).then_some(coeff);
+        return polyfit_with_intercept(xs, ys, order, b0);
     }
     let xm = xs.iter().sum::<f64>() / n as f64;
     let us: Vec<f64> = xs.iter().map(|x| x - xm).collect();

crates/opus/src/celt/bands.rs

@@ -71,7 +71,7 @@ fn exp_rotation1(x: &mut [f32], len: usize, stride: usize, c: f32, s: f32) {
         x[i + stride] = c * x2 + s * x1;
         x[i] = c * x1 + ms * x2;
     }
-    if len >= 2 * stride + 1 {
+    if len > 2 * stride {
         for i in (0..=len - 2 * stride - 1).rev() {
             let x1 = x[i];
             let x2 = x[i + stride];

crates/opus/src/celt/mod.rs

@@ -578,7 +578,7 @@ fn tf_decode(start: usize, end: usize, is_transient: bool, tf_res: &mut [i32; NB
     let mut budget = dec.storage() as i32 * 8;
     let mut tell = dec.tell();
     let mut logp: u32 = if is_transient { 2 } else { 4 };
-    let tf_select_rsv = lm > 0 && tell + logp as i32 + 1 <= budget;
+    let tf_select_rsv = lm > 0 && tell + (logp as i32) < budget;
     budget -= tf_select_rsv as i32;
     let mut tf_changed = 0;
     let mut curr = 0;

crates/opus/src/decoder.rs

@@ -217,7 +217,7 @@ impl StreamDecoder {
                 }
             }
         }
-        let data_len = data.map_or(0, |d| d.len());
+        let data_len = data.map_or(0, <[_]>::len);
         let mut dec_storage;
         let mut dec: Option<&mut RangeDecoder> = match data {
             Some(d) => {

crates/pdf/Cargo.toml

@@ -20,7 +20,7 @@ thiserror = { workspace = true }
 log = { workspace = true }
 
 [dev-dependencies]
-hayro-syntax = { version = "=0.8.0", default-features = false, features = ["std"] }
+hayro-syntax = { version = "=0.7.2", default-features = false, features = ["std"] }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
 wasm-bindgen-test = "0.3"

crates/pdf/src/lib.rs

@@ -131,6 +131,33 @@ pub fn export(pres: &Presentation, opts: &PdfOptions) -> Result<Vec<u8>> {
     write::guard(|| export_inner(pres, opts))
 }
 
+fn plan_pages(pres: &Presentation, opts: &PdfOptions, slides: &[usize], sw: f64, sh: f64) -> Vec<Vec<(usize, Rect)>> {
+    match opts.layout {
+        PageLayout::Slides => slides.iter().map(|&i| vec![(i, Rect::new(0.0, 0.0, sw, sh))]).collect(),
+        PageLayout::Notes => {
+            let b = notes_frames(pres, opts.paper).0;
+            slides.iter().map(|&i| vec![(i, b)]).collect()
+        }
+        PageLayout::Handouts { per_page } => {
+            let boxes = handout_boxes(per_page, opts.paper, sw / sh);
+            slides.chunks(boxes.len()).map(|c| c.iter().zip(&boxes).map(|(i, b)| (*i, *b)).collect()).collect()
+        }
+    }
+}
+
+fn build_outline(pres: &Presentation, pages: &[Vec<(usize, Rect)>]) -> Outline {
+    let mut outline = Outline::new();
+    for (p, v) in pages.iter().enumerate() {
+        for (i, _) in v {
+            let t = pres.slides[*i].title();
+            let t = t.lines().next().unwrap_or("").trim().to_string();
+            let label = if t.is_empty() { format!("Slide {}", i + 1) } else { format!("{}. {t}", i + 1) };
+            outline.push_child(OutlineNode::new(label, XyzDestination::new(p, Point::from_xy(0.0, 0.0))));
+        }
+    }
+    outline
+}
+
 fn export_inner(pres: &Presentation, opts: &PdfOptions) -> Result<Vec<u8>> {
     let slides: Vec<usize> = match &opts.slides {
         Some(v) => v.iter().copied().filter(|i| *i < pres.slides.len()).collect(),
@@ -153,29 +180,10 @@ fn export_inner(pres: &Presentation, opts: &PdfOptions) -> Result<Vec<u8>> {
     let (sw, sh) = (pres.slide_size.width.max(1.0), pres.slide_size.height.max(1.0));
     let mut ex = Exporter { pres, opts, fonts: HashMap::new() };
     // Page plan: per page, the slides on it with their boxes (page points).
-    let pages: Vec<Vec<(usize, Rect)>> = match opts.layout {
-        PageLayout::Slides => slides.iter().map(|&i| vec![(i, Rect::new(0.0, 0.0, sw, sh))]).collect(),
-        PageLayout::Notes => {
-            let b = notes_frames(pres, opts.paper).0;
-            slides.iter().map(|&i| vec![(i, b)]).collect()
-        }
-        PageLayout::Handouts { per_page } => {
-            let boxes = handout_boxes(per_page, opts.paper, sw / sh);
-            slides.chunks(boxes.len()).map(|c| c.iter().zip(&boxes).map(|(i, b)| (*i, *b)).collect()).collect()
-        }
-    };
+    let pages = plan_pages(pres, opts, &slides, sw, sh);
     // Bookmarks and slide → page lookup for internal links.
     let page_of: HashMap<usize, usize> = pages.iter().enumerate().flat_map(|(p, v)| v.iter().map(move |(i, _)| (*i, p))).collect();
-    let mut outline = Outline::new();
-    for (p, v) in pages.iter().enumerate() {
-        for (i, _) in v {
-            let t = pres.slides[*i].title();
-            let t = t.lines().next().unwrap_or("").trim().to_string();
-            let label = if t.is_empty() { format!("Slide {}", i + 1) } else { format!("{}. {t}", i + 1) };
-            outline.push_child(OutlineNode::new(label, XyzDestination::new(p, Point::from_xy(0.0, 0.0))));
-        }
-    }
-    pdf.set_outline(outline);
+    pdf.set_outline(build_outline(pres, &pages));
 
     for v in &pages {
         let (pw, ph) = match opts.layout {

crates/render/src/images.rs

@@ -76,7 +76,7 @@ impl Anim {
 static CACHE: Mutex<Option<Cache>> = Mutex::new(None);
 
 fn with<R>(f: impl FnOnce(&mut Cache) -> R) -> R {
-    let mut g = CACHE.lock().unwrap_or_else(|e| e.into_inner());
+    let mut g = CACHE.lock().unwrap_or_else(std::sync::PoisonError::into_inner);
     f(g.get_or_insert_with(Cache::default))
 }
 

crates/text/src/lib.rs

@@ -1090,7 +1090,7 @@ fn shape_item(
     for g in &glyphs {
         let Some(&h) = char_at_byte.get(&g.cluster) else { continue };
         let Some(cell) = cells.get_mut(h) else { continue };
-        if matches!(cell.ch, '\t' | '\u{b}' | '\n') {
+        if matches!(cell.ch, '\t'..='\u{b}') {
             continue;
         }
         let s = scale_of(cell);
@@ -1738,7 +1738,7 @@ fn tab_segment(cells: &[Cell], i: usize) -> (f64, f64) {
     let mut w = 0.0;
     let mut dec = None;
     for c in cells.iter().skip(i + 1) {
-        if matches!(c.ch, '\t' | '\u{b}' | '\n') {
+        if matches!(c.ch, '\t'..='\u{b}') {
             break;
         }
         if c.ch == '.' && dec.is_none() {

crates/ui-egui/src/dialogs.rs

@@ -2027,7 +2027,7 @@ fn body(app: &mut SlideApp, ui: &mut Ui, d: &mut Dialog) -> bool {
             });
             ui.horizontal(|ui| {
                 if ui.button("+ Row").clicked() {
-                    let n = grid.first().map(|r| r.len()).unwrap_or(2);
+                    let n = grid.first().map(Vec::len).unwrap_or(2);
                     grid.push(vec![String::new(); n]);
                 }
                 if ui.button("+ Series").clicked() {
@@ -2943,7 +2943,7 @@ fn paragraph_return_params(d: &mut Dialog) -> Value {
     let line_value = finite_pt(&d.get("lineValue", "1")).unwrap_or(1.0);
     let before_same = d.get("spaceBefore", "") == d.get("spaceBeforeSeed", "");
     let after_same = d.get("spaceAfter", "") == d.get("spaceAfterSeed", "");
-    let v = json!({
+    json!({
         "align": d.get("align", "left"),
         "indentLeft": before,
         "indentRight": after,
@@ -2957,8 +2957,7 @@ fn paragraph_return_params(d: &mut Dialog) -> Value {
         "lineValue": line_value,
         "tabs": d.params.get("tabs").cloned().unwrap_or_else(|| json!([])),
         "defaultTab": d.params.get("defaultTab").cloned().unwrap_or_else(|| json!(72.0)),
-    });
-    v
+    })
 }
 
 fn line_preset_label(kind: &str, value: &str) -> &'static str {

crates/ui-egui/src/ribbon.rs

@@ -1349,6 +1349,38 @@ pub fn table_grid_picker(ui: &mut Ui) -> Option<(usize, usize)> {
     if resp.clicked() && hover.0 > 0 { Some(hover) } else { None }
 }
 
+fn render_icon_categories(app: &mut SlideApp, ui: &mut Ui, icons: &[deckcraft_engine::icons::Icon], color: Color32, hover: Color32) {
+    let mut cats: Vec<&str> = Vec::new();
+    for icon in icons {
+        if !cats.contains(&icon.category) {
+            cats.push(icon.category);
+        }
+    }
+    for cat in cats {
+        ui.label(egui::RichText::new(cat).small().strong());
+        ui.horizontal_wrapped(|ui| {
+            for icon in icons.iter().filter(|i| i.category == cat) {
+                icon_cell(app, ui, icon, color, hover);
+            }
+        });
+    }
+}
+
+fn render_filtered_icons(app: &mut SlideApp, ui: &mut Ui, icons: &[deckcraft_engine::icons::Icon], q: &str, color: Color32, hover: Color32) {
+    let mut n = 0;
+    ui.horizontal_wrapped(|ui| {
+        for icon in icons {
+            if icon.name.contains(q) || icon.label.to_lowercase().contains(q) {
+                icon_cell(app, ui, icon, color, hover);
+                n += 1;
+            }
+        }
+    });
+    if n == 0 {
+        ui.label("No icons match.");
+    }
+}
+
 /// Lucide stroke icons (Insert › Icons). Search filters the gallery; a click inserts the outline.
 fn icon_library(app: &mut SlideApp, ui: &mut Ui) {
     let t = Tokens::get(ui.ctx());
@@ -1361,33 +1393,9 @@ fn icon_library(app: &mut SlideApp, ui: &mut Ui) {
     let icons = deckcraft_engine::icons::icons();
     egui::ScrollArea::vertical().id_salt("icon-scroll").max_height(420.0).show(ui, |ui| {
         if q.is_empty() {
-            let mut cats: Vec<&str> = Vec::new();
-            for icon in icons {
-                if !cats.contains(&icon.category) {
-                    cats.push(icon.category);
-                }
-            }
-            for cat in cats {
-                ui.label(egui::RichText::new(cat).small().strong());
-                ui.horizontal_wrapped(|ui| {
-                    for icon in icons.iter().filter(|i| i.category == cat) {
-                        icon_cell(app, ui, icon, color, hover);
-                    }
-                });
-            }
+            render_icon_categories(app, ui, icons, color, hover);
         } else {
-            let mut n = 0;
-            ui.horizontal_wrapped(|ui| {
-                for icon in icons {
-                    if icon.name.contains(&q) || icon.label.to_lowercase().contains(&q) {
-                        icon_cell(app, ui, icon, color, hover);
-                        n += 1;
-                    }
-                }
-            });
-            if n == 0 {
-                ui.label("No icons match.");
-            }
+            render_filtered_icons(app, ui, icons, &q, color, hover);
         }
     });
 }

packaging/linux/package.sh

@@ -19,6 +19,12 @@ set -euo pipefail
 HERE="$ROOT/packaging/linux"
 APP_ID=ai.storyteller.deckcraft
 
+verify_sha256() {
+  local expected="$1"
+  local file="$2"
+  printf '%s  %s\n' "$expected" "$file" | sha256sum -c -
+}
+
 SKIP_BUILD=0
 FORMATS="appimage deb rpm tar"
 while [[ $# -gt 0 ]]; do
@@ -137,21 +143,21 @@ if has appimage; then
       download="$TOOL.download"
       curl --proto '=https' -fsSL -o "$download" \
         "https://github.com/AppImage/appimagetool/releases/download/$APPIMAGETOOL_VERSION/appimagetool-$ARCH.AppImage"
-      printf '%s  %s\n' "$APPIMAGETOOL_SHA256" "$download" | sha256sum -c -
+      verify_sha256 "$APPIMAGETOOL_SHA256" "$download"
       chmod 755 "$download"
       mv "$download" "$TOOL"
     fi
-    printf '%s  %s\n' "$APPIMAGETOOL_SHA256" "$TOOL" | sha256sum -c -
+    verify_sha256 "$APPIMAGETOOL_SHA256" "$TOOL"
   fi
   RUNTIME="$CARGO_TARGET_DIR/appimage-runtime-$APPIMAGE_RUNTIME_VERSION-$ARCH"
   if [[ ! -f "$RUNTIME" ]]; then
     download="$RUNTIME.download"
     curl --proto '=https' -fsSL -o "$download" \
       "https://github.com/AppImage/type2-runtime/releases/download/$APPIMAGE_RUNTIME_VERSION/runtime-$ARCH"
-    printf '%s  %s\n' "$APPIMAGE_RUNTIME_SHA256" "$download" | sha256sum -c -
+    verify_sha256 "$APPIMAGE_RUNTIME_SHA256" "$download"
     mv "$download" "$RUNTIME"
   fi
-  printf '%s  %s\n' "$APPIMAGE_RUNTIME_SHA256" "$RUNTIME" | sha256sum -c -
+  verify_sha256 "$APPIMAGE_RUNTIME_SHA256" "$RUNTIME"
   # Absolute, because appimagetool runs in $DIST below (CARGO_TARGET_DIR or APPIMAGETOOL may be
   # relative).
   OUT="$(cd "$DIST" && pwd)/$BASENAME.AppImage"

xtask/src/assets.rs

@@ -51,7 +51,7 @@ const ASSET_EXT: &[&str] = &[
 const ASSET_DIRS: &[&str] = &["assets/", "docs/images/", "docs/brand/", "examples/"];
 
 pub fn is_asset(path: &str) -> bool {
-    let ext = Path::new(path).extension().and_then(|e| e.to_str()).map(str::to_ascii_lowercase).unwrap_or_default();
+    let ext = Path::new(path).extension().and_then(std::ffi::OsStr::to_str).map(str::to_ascii_lowercase).unwrap_or_default();
     ASSET_DIRS.iter().any(|d| path.starts_with(d)) || ASSET_EXT.contains(&ext.as_str())
 }
 

xtask/src/layers.rs

@@ -207,7 +207,7 @@ pub fn check(crates: &[Crate]) -> Vec<Violation> {
             }
         }
     }
-    out.sort_by_key(|v| v.to_string());
+    out.sort_by_key(ToString::to_string);
     out.dedup();
     out
 }