diff --git a/examples/select_test.rs b/examples/select_test.rs
index 9084fe6..62198df 100644
--- a/examples/select_test.rs
+++ b/examples/select_test.rs
@@ -11,17 +11,19 @@ fn main() {
 pub mod tests {
     extern crate cursive;
 
+    use self::cursive::backend::puppet::observed::{
+        ObservedCell, ObservedPieceInterface,
+    };
     use cursive::align::HAlign;
+    use cursive::backend::puppet::observed::ObservedScreen;
+    use cursive::event::Event;
     use cursive::event::EventResult;
+    use cursive::event::Key;
     use cursive::traits::*;
     use cursive::views::*;
     use cursive::*;
-    use cursive::backend::puppet::observed::ObservedScreen;
-    use cursive::event::Event;
     use std::cell::RefCell;
     use std::time::Duration;
-    use cursive::event::Key;
-    use self::cursive::backend::puppet::observed::{ObservedCell, ObservedPieceInterface};
 
     pub struct BasicSetup {
         siv: Cursive,
@@ -77,7 +79,7 @@ pub mod tests {
                 siv,
                 screen_stream: sink,
                 input,
-                last_screen : RefCell::new(None)
+                last_screen: RefCell::new(None),
             }
         }
 
@@ -90,9 +92,7 @@ pub mod tests {
         }
 
         pub fn dump_debug(&self) {
-            self.last_screen().as_ref().map(|s| {
-                s.print_stdout()
-            });
+            self.last_screen().as_ref().map(|s| s.print_stdout());
         }
 
         pub fn hit_keystroke(&mut self, key: Key) {
@@ -111,7 +111,6 @@ pub mod tests {
         );
     }
 
-
     #[test]
     fn displays() {
         let mut s = BasicSetup::new();
@@ -129,7 +128,10 @@ pub mod tests {
 
         let mut screen = s.last_screen().unwrap();
         s.dump_debug();
-        assert_eq!(screen.find_occurences("Abu Dhabi is a great city!").len(), 1);
+        assert_eq!(
+            screen.find_occurences("Abu Dhabi is a great city!").len(),
+            1
+        );
         assert_eq!(screen.find_occurences("Abidjan").len(), 0);
     }
 }
diff --git a/rustfmt.toml b/rustfmt.toml
index 7355152..6724669 100644
--- a/rustfmt.toml
+++ b/rustfmt.toml
@@ -1,5 +1,5 @@
 unstable_features = true
 max_width = 79
 reorder_imports = true
-fn_args_density = "Compressed"
+fn_args_layout = "Tall"
 
diff --git a/src/backend/blt.rs b/src/backend/blt.rs
index d4e3f3c..ce1005f 100644
--- a/src/backend/blt.rs
+++ b/src/backend/blt.rs
@@ -112,7 +112,10 @@ impl Backend {
     }
 
     fn blt_keycode_to_ev(
-        &mut self, kc: KeyCode, shift: bool, ctrl: bool,
+        &mut self,
+        kc: KeyCode,
+        shift: bool,
+        ctrl: bool,
     ) -> Event {
         match kc {
             KeyCode::F1
diff --git a/src/backend/crossterm.rs b/src/backend/crossterm.rs
index cfd52e2..08916e3 100644
--- a/src/backend/crossterm.rs
+++ b/src/backend/crossterm.rs
@@ -251,7 +251,9 @@ impl backend::Backend for Backend {
             theme::Effect::Reverse => self.set_attr(Attribute::Reverse),
             theme::Effect::Bold => self.set_attr(Attribute::Bold),
             theme::Effect::Italic => self.set_attr(Attribute::Italic),
-            theme::Effect::Strikethrough => self.set_attr(Attribute::CrossedOut),
+            theme::Effect::Strikethrough => {
+                self.set_attr(Attribute::CrossedOut)
+            }
             theme::Effect::Underline => self.set_attr(Attribute::Underlined),
         }
     }
@@ -262,7 +264,9 @@ impl backend::Backend for Backend {
             theme::Effect::Reverse => self.set_attr(Attribute::Reverse),
             theme::Effect::Bold => self.set_attr(Attribute::NoBold),
             theme::Effect::Italic => self.set_attr(Attribute::NoItalic),
-            theme::Effect::Strikethrough =>  self.set_attr(Attribute::NotCrossedOut),
+            theme::Effect::Strikethrough => {
+                self.set_attr(Attribute::NotCrossedOut)
+            }
             theme::Effect::Underline => self.set_attr(Attribute::Underlined),
         }
     }
diff --git a/src/backend/curses/n.rs b/src/backend/curses/n.rs
index 9b7f9f6..23140d1 100644
--- a/src/backend/curses/n.rs
+++ b/src/backend/curses/n.rs
@@ -128,7 +128,9 @@ impl Backend {
 
     /// Save a new color pair.
     fn insert_color(
-        &self, pairs: &mut HashMap<(i16, i16), i16>, (front, back): (i16, i16),
+        &self,
+        pairs: &mut HashMap<(i16, i16), i16>,
+        (front, back): (i16, i16),
     ) -> i16 {
         let n = 1 + pairs.len() as i16;
 
diff --git a/src/backend/curses/pan.rs b/src/backend/curses/pan.rs
index 48a75e5..fd4db59 100644
--- a/src/backend/curses/pan.rs
+++ b/src/backend/curses/pan.rs
@@ -87,7 +87,9 @@ impl Backend {
 
     /// Save a new color pair.
     fn insert_color(
-        &self, pairs: &mut HashMap<(i16, i16), i32>, (front, back): (i16, i16),
+        &self,
+        pairs: &mut HashMap<(i16, i16), i32>,
+        (front, back): (i16, i16),
     ) -> i32 {
         let n = 1 + pairs.len() as i32;
 
diff --git a/src/backend/mod.rs b/src/backend/mod.rs
index 9583124..a950298 100644
--- a/src/backend/mod.rs
+++ b/src/backend/mod.rs
@@ -20,8 +20,8 @@ pub mod dummy;
 pub mod blt;
 pub mod crossterm;
 pub mod curses;
-pub mod termion;
 pub mod puppet;
+pub mod termion;
 
 /// Trait defining the required methods to be a backend.
 ///
diff --git a/src/backend/puppet/mod.rs b/src/backend/puppet/mod.rs
index 207784a..7decc37 100644
--- a/src/backend/puppet/mod.rs
+++ b/src/backend/puppet/mod.rs
@@ -6,12 +6,12 @@ use crate::backend::puppet::observed::ObservedCell;
 use crate::backend::puppet::observed::ObservedScreen;
 use crate::backend::puppet::observed::ObservedStyle;
 use crate::event::Event;
+use crate::theme;
+use crate::vec::Vec2;
 use std::cell::RefCell;
 use std::rc::Rc;
-use crate::theme;
 use unicode_segmentation::UnicodeSegmentation;
 use unicode_width::UnicodeWidthStr;
-use crate::vec::Vec2;
 
 pub mod observed;
 pub mod observed_screen_view;
@@ -45,7 +45,9 @@ impl Backend {
             prev_frame: RefCell::new(None),
             current_frame: RefCell::new(ObservedScreen::new(size)),
             size: RefCell::new(size),
-            current_style: RefCell::new(Rc::new(DEFAULT_OBSERVED_STYLE.clone())),
+            current_style: RefCell::new(Rc::new(
+                DEFAULT_OBSERVED_STYLE.clone(),
+            )),
             screen_channel: crossbeam_channel::unbounded(),
         };
 
@@ -74,12 +76,11 @@ impl Backend {
 }
 
 impl backend::Backend for Backend {
-
     fn poll_event(&mut self) -> Option<Event> {
         match self.inner_receiver.try_recv() {
             Ok(event) => event,
             Err(TryRecvError::Empty) => None,
-            Err(e) => panic!(e)
+            Err(e) => panic!(e),
         }
     }
 
@@ -117,7 +118,8 @@ impl backend::Backend for Backend {
             for _ in 0..grapheme.width() - 1 {
                 offset += 1;
                 let spos = pos + Vec2::new(idx + offset, 0);
-                screen[spos] = Some(ObservedCell::new(spos, style.clone(), None));
+                screen[spos] =
+                    Some(ObservedCell::new(spos, style.clone(), None));
             }
         }
     }
diff --git a/src/backend/puppet/observed.rs b/src/backend/puppet/observed.rs
index f8852fc..849c443 100644
--- a/src/backend/puppet/observed.rs
+++ b/src/backend/puppet/observed.rs
@@ -1,14 +1,14 @@
 //! Structs representing output of puppet backend
+use crate::theme::ColorPair;
+use crate::theme::Effect;
+use crate::Vec2;
 use enumset::EnumSet;
 use std::ops::Index;
 use std::ops::IndexMut;
 use std::rc::Rc;
 use std::string::ToString;
-use crate::theme::ColorPair;
-use crate::theme::Effect;
 use unicode_segmentation::UnicodeSegmentation;
 use unicode_width::UnicodeWidthStr;
-use crate::Vec2;
 
 /// Style of observed cell
 #[derive(Debug, Clone, Eq, PartialEq)]
@@ -180,10 +180,7 @@ impl ObservedScreen {
     }
 
     /// Returns occurences of given string pattern
-    pub fn find_occurences(
-        &self,
-        pattern: &str,
-    ) -> Vec<ObservedLine> {
+    pub fn find_occurences(&self, pattern: &str) -> Vec<ObservedLine> {
         // TODO(njskalski): test for two-cell letters.
         // TODO(njskalski): fails with whitespaces like "\t".
 
@@ -259,7 +256,6 @@ impl ObservedScreen {
 
 /// Represents rectangular piece of observed screen (Puppet backend output)
 pub trait ObservedPieceInterface {
-
     /// Minimums of coordinates
     fn min(&self) -> Vec2;
     /// Maximums of coordinates
@@ -393,7 +389,7 @@ impl<'a> ObservedPieceInterface for ObservedLine<'a> {
     }
 
     fn max(&self) -> Vec2 {
-        self.line_start + Vec2::new(self.line_len, 1)
+        self.line_start + (self.line_len, 1)
     }
 
     fn parent(&self) -> &ObservedScreen {
@@ -407,12 +403,11 @@ impl<'a> ToString for ObservedLine<'a> {
     }
 }
 
-impl Index<Vec2> for ObservedPieceInterface {
+impl Index<Vec2> for dyn ObservedPieceInterface {
     type Output = Option<ObservedCell>;
 
     fn index(&self, index: Vec2) -> &Self::Output {
-        assert!(self.max().x - self.min().x > index.x);
-        assert!(self.max().y - self.min().y > index.y);
+        assert!(self.max() - self.min() > index);
 
         let parent_index = self.min() + index;
 
diff --git a/src/backend/puppet/static_values.rs b/src/backend/puppet/static_values.rs
index 3bbea17..6dcaef8 100644
--- a/src/backend/puppet/static_values.rs
+++ b/src/backend/puppet/static_values.rs
@@ -1,10 +1,8 @@
 /// Some default values to Puppet backend.
-#[allow(missing_docs)]
-
 use lazy_static::lazy_static;
 
-use crate::theme::{Color, Effect};
 use crate::theme::ColorPair;
+use crate::theme::{Color, Effect};
 use crate::vec::Vec2;
 use crate::XY;
 use enumset::EnumSet;
@@ -12,7 +10,10 @@ use enumset::EnumSet;
 use crate::backend::puppet::observed::*;
 
 lazy_static! {
+    /// Default size for the puppet terminal.
     pub static ref DEFAULT_SIZE: Vec2 = XY::<usize> { x: 120, y: 80 };
+
+    /// Default style for the puppet terminal.
     pub static ref DEFAULT_OBSERVED_STYLE: ObservedStyle = ObservedStyle {
         colors: ColorPair {
             front: Color::TerminalDefault,
diff --git a/src/backend/resize.rs b/src/backend/resize.rs
index 9efe4bb..6dc9972 100644
--- a/src/backend/resize.rs
+++ b/src/backend/resize.rs
@@ -8,7 +8,8 @@ use signal_hook::iterator::Signals;
 /// This starts a new thread to listen for SIGWINCH signals
 #[allow(unused)]
 pub fn start_resize_thread(
-    resize_sender: Sender<()>, resize_running: Arc<AtomicBool>,
+    resize_sender: Sender<()>,
+    resize_running: Arc<AtomicBool>,
 ) {
     let signals = Signals::new(&[libc::SIGWINCH]).unwrap();
     thread::spawn(move || {
diff --git a/src/cursive.rs b/src/cursive.rs
index e82ed63..c98c8a3 100644
--- a/src/cursive.rs
+++ b/src/cursive.rs
@@ -407,7 +407,8 @@ impl Cursive {
     ///
     /// `filename` must point to a valid toml file.
     pub fn load_theme_file<P: AsRef<Path>>(
-        &mut self, filename: P,
+        &mut self,
+        filename: P,
     ) -> Result<(), theme::Error> {
         theme::load_theme_file(filename).map(|theme| self.set_theme(theme))
     }
@@ -512,7 +513,9 @@ impl Cursive {
     /// # }
     /// ```
     pub fn call_on<V, F, R>(
-        &mut self, sel: &view::Selector<'_>, callback: F,
+        &mut self,
+        sel: &view::Selector<'_>,
+        callback: F,
     ) -> Option<R>
     where
         V: View + Any,
@@ -696,7 +699,9 @@ impl Cursive {
 
     /// Convenient stub forwarding layer repositioning.
     pub fn reposition_layer(
-        &mut self, layer: LayerPosition, position: Position,
+        &mut self,
+        layer: LayerPosition,
+        position: Position,
     ) {
         self.screen_mut().reposition_layer(layer, position);
     }
diff --git a/src/lib.rs b/src/lib.rs
index 7496d30..700ab1e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -89,7 +89,6 @@ pub mod theme;
 pub mod vec;
 pub mod views;
 
-
 // This probably doesn't need to be public?
 mod cursive;
 mod printer;
diff --git a/src/printer.rs b/src/printer.rs
index 6075be7..f822540 100644
--- a/src/printer.rs
+++ b/src/printer.rs
@@ -67,7 +67,9 @@ impl<'a, 'b> Printer<'a, 'b> {
     /// But nobody needs to know that.
     #[doc(hidden)]
     pub fn new<T: Into<Vec2>>(
-        size: T, theme: &'a Theme, backend: &'b dyn Backend,
+        size: T,
+        theme: &'a Theme,
+        backend: &'b dyn Backend,
     ) -> Self {
         let size = size.into();
         Printer {
@@ -94,7 +96,9 @@ impl<'a, 'b> Printer<'a, 'b> {
 
     /// Prints some styled text at the given position.
     pub fn print_styled<S>(
-        &self, start: S, text: crate::utils::span::SpannedStr<'_, Style>,
+        &self,
+        start: S,
+        text: crate::utils::span::SpannedStr<'_, Style>,
     ) where
         S: Into<Vec2>,
     {
@@ -197,7 +201,10 @@ impl<'a, 'b> Printer<'a, 'b> {
 
     /// Prints a vertical line using the given character.
     pub fn print_vline<T: Into<Vec2>>(
-        &self, start: T, height: usize, c: &str,
+        &self,
+        start: T,
+        height: usize,
+        c: &str,
     ) {
         let start = start.into();
 
@@ -234,7 +241,11 @@ impl<'a, 'b> Printer<'a, 'b> {
 
     /// Prints a line using the given character.
     pub fn print_line<T: Into<Vec2>>(
-        &self, orientation: Orientation, start: T, length: usize, c: &str,
+        &self,
+        orientation: Orientation,
+        start: T,
+        length: usize,
+        c: &str,
     ) {
         match orientation {
             Orientation::Vertical => self.print_vline(start, length, c),
@@ -384,7 +395,10 @@ impl<'a, 'b> Printer<'a, 'b> {
     /// printer.print_box((0,0), (6,4), false);
     /// ```
     pub fn print_box<T: Into<Vec2>, S: Into<Vec2>>(
-        &self, start: T, size: S, invert: bool,
+        &self,
+        start: T,
+        size: S,
+        invert: bool,
     ) {
         let start = start.into();
         let size = size.into();
@@ -455,7 +469,9 @@ impl<'a, 'b> Printer<'a, 'b> {
     ///       uses `ColorStyle::highlight()`.
     ///     * Otherwise, uses `ColorStyle::highlight_inactive()`.
     pub fn with_selection<F: FnOnce(&Printer<'_, '_>)>(
-        &self, selection: bool, f: F,
+        &self,
+        selection: bool,
+        f: F,
     ) {
         self.with_color(
             if selection {
diff --git a/src/theme/palette.rs b/src/theme/palette.rs
index 62d4fac..61cfc5d 100644
--- a/src/theme/palette.rs
+++ b/src/theme/palette.rs
@@ -125,7 +125,9 @@ impl Palette {
 
     /// Adds a color namespace to this palette.
     pub fn add_namespace(
-        &mut self, key: &str, namespace: HashMap<String, PaletteNode>,
+        &mut self,
+        key: &str,
+        namespace: HashMap<String, PaletteNode>,
     ) {
         self.custom
             .insert(key.to_string(), PaletteNode::Namespace(namespace));
diff --git a/src/utils/lines/spans/lines_iterator.rs b/src/utils/lines/spans/lines_iterator.rs
index fa6b653..a063e70 100644
--- a/src/utils/lines/spans/lines_iterator.rs
+++ b/src/utils/lines/spans/lines_iterator.rs
@@ -164,10 +164,7 @@ where
 
         // Concatenate all segments
         let segments = SegmentMergeIterator::new(
-            chunks
-                .into_iter()
-                .flat_map(|chunk| chunk.segments)
-                //.filter(|segment| segment.start != segment.end),
+            chunks.into_iter().flat_map(|chunk| chunk.segments), //.filter(|segment| segment.start != segment.end),
         )
         .collect();
 
diff --git a/src/utils/lines/spans/prefix.rs b/src/utils/lines/spans/prefix.rs
index 7c7d5fa..d18e799 100644
--- a/src/utils/lines/spans/prefix.rs
+++ b/src/utils/lines/spans/prefix.rs
@@ -3,7 +3,9 @@ use std::iter::Peekable;
 
 /// Concatenates chunks as long as they fit in the given width.
 pub fn prefix<I>(
-    tokens: &mut Peekable<I>, width: usize, offset: &mut ChunkPart,
+    tokens: &mut Peekable<I>,
+    width: usize,
+    offset: &mut ChunkPart,
 ) -> Vec<Chunk>
 where
     I: Iterator<Item = Chunk>,
diff --git a/src/view/boxable.rs b/src/view/boxable.rs
index de6d26d..97a0296 100644
--- a/src/view/boxable.rs
+++ b/src/view/boxable.rs
@@ -8,7 +8,9 @@ use crate::views::BoxView;
 pub trait Boxable: View + Sized {
     /// Wraps `self` in a `BoxView` with the given size constraints.
     fn boxed(
-        self, width: SizeConstraint, height: SizeConstraint,
+        self,
+        width: SizeConstraint,
+        height: SizeConstraint,
     ) -> BoxView<Self> {
         BoxView::new(width, height, self)
     }
diff --git a/src/view/finder.rs b/src/view/finder.rs
index f5c0c81..ad7f570 100644
--- a/src/view/finder.rs
+++ b/src/view/finder.rs
@@ -17,7 +17,9 @@ pub trait Finder {
     /// If the view is not found, or if it is not of the asked type,
     /// it returns `None`.
     fn call_on<V, F, R>(
-        &mut self, sel: &Selector<'_>, callback: F,
+        &mut self,
+        sel: &Selector<'_>,
+        callback: F,
     ) -> Option<R>
     where
         V: View + Any,
@@ -45,7 +47,9 @@ pub trait Finder {
 
 impl<T: View> Finder for T {
     fn call_on<V, F, R>(
-        &mut self, sel: &Selector<'_>, callback: F,
+        &mut self,
+        sel: &Selector<'_>,
+        callback: F,
     ) -> Option<R>
     where
         V: View + Any,
diff --git a/src/view/position.rs b/src/view/position.rs
index 20c631d..9c61fed 100644
--- a/src/view/position.rs
+++ b/src/view/position.rs
@@ -30,7 +30,10 @@ impl Position {
     /// child with its top-left corner at the returned coordinates will
     /// position him appropriately.
     pub fn compute_offset<S, A, P>(
-        &self, size: S, available: A, parent: P,
+        &self,
+        size: S,
+        available: A,
+        parent: P,
     ) -> Vec2
     where
         S: Into<Vec2>,
@@ -65,7 +68,10 @@ pub enum Offset {
 impl Offset {
     /// Computes a single-dimension offset requred to draw a view.
     pub fn compute_offset(
-        &self, size: usize, available: usize, parent: usize,
+        &self,
+        size: usize,
+        available: usize,
+        parent: usize,
     ) -> usize {
         if size > available {
             0
diff --git a/src/view/scroll/core.rs b/src/view/scroll/core.rs
index 532d112..d80b820 100644
--- a/src/view/scroll/core.rs
+++ b/src/view/scroll/core.rs
@@ -97,7 +97,8 @@ impl Core {
 
     /// Returns a sub-printer ready to draw the content.
     pub fn sub_printer<'a, 'b>(
-        &self, printer: &Printer<'a, 'b>,
+        &self,
+        printer: &Printer<'a, 'b>,
     ) -> Printer<'a, 'b> {
         // Draw scrollbar?
         let scrolling = self.is_scrolling();
@@ -184,7 +185,9 @@ impl Core {
 
     /// Handle an event after processing by the content.
     pub fn on_inner_event(
-        &mut self, event: Event, inner_result: EventResult,
+        &mut self,
+        event: Event,
+        inner_result: EventResult,
         important_area: Rect,
     ) -> EventResult {
         match inner_result {
@@ -362,7 +365,9 @@ impl Core {
 
     /// Performs `View::call_on_any()`
     pub fn call_on_any<'a, F>(
-        &mut self, selector: &Selector<'_>, cb: AnyCb<'a>,
+        &mut self,
+        selector: &Selector<'_>,
+        cb: AnyCb<'a>,
         inner_call_on_any: F,
     ) where
         F: FnOnce(&Selector, AnyCb),
@@ -372,7 +377,9 @@ impl Core {
 
     /// Performs `View::focus_view()`
     pub fn focus_view<F>(
-        &mut self, selector: &Selector<'_>, inner_focus_view: F,
+        &mut self,
+        selector: &Selector<'_>,
+        inner_focus_view: F,
     ) -> Result<(), ()>
     where
         F: FnOnce(&Selector) -> Result<(), ()>,
@@ -406,7 +413,8 @@ impl Core {
 
     /// Sets the padding between content and scrollbar.
     pub fn set_scrollbar_padding<V: Into<Vec2>>(
-        &mut self, scrollbar_padding: V,
+        &mut self,
+        scrollbar_padding: V,
     ) {
         self.scrollbar_padding = scrollbar_padding.into();
     }
@@ -415,7 +423,8 @@ impl Core {
     ///
     /// Chainable variant.
     pub fn scrollbar_padding<V: Into<Vec2>>(
-        self, scrollbar_padding: V,
+        self,
+        scrollbar_padding: V,
     ) -> Self {
         self.with(|s| s.set_scrollbar_padding(scrollbar_padding))
     }
diff --git a/src/view/scroll/mod.rs b/src/view/scroll/mod.rs
index 187fff2..8d4300e 100644
--- a/src/view/scroll/mod.rs
+++ b/src/view/scroll/mod.rs
@@ -54,7 +54,9 @@ impl Default for ScrollStrategy {
 /// }
 /// ```
 pub fn on_event<T, OnEvent, ImportantArea>(
-    scroller: &mut T, event: Event, on_event: OnEvent,
+    scroller: &mut T,
+    event: Event,
+    on_event: OnEvent,
     important_area: ImportantArea,
 ) -> EventResult
 where
@@ -73,7 +75,9 @@ where
 
 /// Performs `View::important_area` on a `scroll::Scroller`.
 pub fn important_area<T, ImportantArea>(
-    scroller: &T, size: Vec2, mut important_area: ImportantArea,
+    scroller: &T,
+    size: Vec2,
+    mut important_area: ImportantArea,
 ) -> Rect
 where
     T: Scroller,
@@ -92,7 +96,10 @@ where
 
 /// Performs `View::layout` on a `scroll::Scroller`.
 pub fn layout<T, Layout, RequiredSize>(
-    scroller: &mut T, size: Vec2, needs_relayout: bool, layout: Layout,
+    scroller: &mut T,
+    size: Vec2,
+    needs_relayout: bool,
+    layout: Layout,
     required_size: RequiredSize,
 ) where
     T: Scroller,
@@ -111,7 +118,9 @@ pub fn layout<T, Layout, RequiredSize>(
 
 /// Performs `View::required_size` on a `scroll::Scroller`.
 pub fn required_size<T, RequiredSize>(
-    scroller: &mut T, size: Vec2, needs_relayout: bool,
+    scroller: &mut T,
+    size: Vec2,
+    needs_relayout: bool,
     required_size: RequiredSize,
 ) -> Vec2
 where
@@ -140,7 +149,9 @@ where
 ///
 /// This is an alternative to `scroll::draw()` when you just need to print individual lines.
 pub fn draw_lines<T, LineDrawer>(
-    scroller: &T, printer: &Printer, mut line_drawer: LineDrawer,
+    scroller: &T,
+    printer: &Printer,
+    mut line_drawer: LineDrawer,
 ) where
     T: Scroller,
     LineDrawer: FnMut(&T, &Printer, usize),
@@ -159,8 +170,11 @@ pub fn draw_lines<T, LineDrawer>(
 ///
 /// `left_border` will be called for each row to draw the left border for the given line number.
 pub fn draw_frame<T, LeftBorder, TopBorder, RightBorder, BottomBorder>(
-    scroller: &T, printer: &Printer, mut left_border: LeftBorder,
-    mut top_border: TopBorder, mut right_border: RightBorder,
+    scroller: &T,
+    printer: &Printer,
+    mut left_border: LeftBorder,
+    mut top_border: TopBorder,
+    mut right_border: RightBorder,
     mut bottom_border: BottomBorder,
 ) where
     T: Scroller,
@@ -180,11 +194,7 @@ pub fn draw_frame<T, LeftBorder, TopBorder, RightBorder, BottomBorder>(
     // Also draw padding
     let scrollbar_size = scroller.get_scroller().scrollbar_size();
     printer.print_hline((viewport.right() + 2, 0), scrollbar_size.x, "─");
-    printer.print_hline(
-        (viewport.right() + 2, size.y),
-        scrollbar_size.x,
-        "─",
-    );
+    printer.print_hline((viewport.right() + 2, size.y), scrollbar_size.x, "─");
     printer.print_vline((0, viewport.bottom() + 2), scrollbar_size.y, "│");
     printer.print_vline(
         (size.x, viewport.bottom() + 2),
@@ -210,7 +220,9 @@ pub fn draw_frame<T, LeftBorder, TopBorder, RightBorder, BottomBorder>(
 ///
 /// It will print a box with the appropriate `├`, `┤` and so on.
 pub fn draw_box_frame<T, IsHDelim, IsVDelim>(
-    scroller: &T, printer: &Printer, is_h_delim: IsHDelim,
+    scroller: &T,
+    printer: &Printer,
+    is_h_delim: IsHDelim,
     is_v_delim: IsVDelim,
 ) where
     T: Scroller,
diff --git a/src/view/scroll/raw.rs b/src/view/scroll/raw.rs
index 3da714c..1ed0aba 100644
--- a/src/view/scroll/raw.rs
+++ b/src/view/scroll/raw.rs
@@ -11,7 +11,9 @@ use crate::Vec2;
 
 /// Implements `View::draw` over the `model`.
 pub fn draw<Model, GetScroller, Draw>(
-    printer: &Printer, model: &Model, mut get_scroller: GetScroller,
+    printer: &Printer,
+    model: &Model,
+    mut get_scroller: GetScroller,
     inner_draw: Draw,
 ) where
     Model: ?Sized,
@@ -30,8 +32,12 @@ pub fn draw<Model, GetScroller, Draw>(
 ///
 /// Returns (Inner size, Outer size, New scrolling)
 fn sizes_when_scrolling<Model, GetScroller, RequiredSize>(
-    constraint: Vec2, scrolling: XY<bool>, strict: bool, model: &mut Model,
-    get_scroller: &mut GetScroller, required_size: &mut RequiredSize,
+    constraint: Vec2,
+    scrolling: XY<bool>,
+    strict: bool,
+    model: &mut Model,
+    get_scroller: &mut GetScroller,
+    required_size: &mut RequiredSize,
 ) -> (Vec2, Vec2, XY<bool>)
 where
     Model: ?Sized,
@@ -77,8 +83,12 @@ where
 ///
 /// Returns (Inner size, Outer size)
 fn sizes<Model, GetScroller, RequiredSize>(
-    constraint: Vec2, strict: bool, needs_relayout: bool, model: &mut Model,
-    get_scroller: &mut GetScroller, required_size: &mut RequiredSize,
+    constraint: Vec2,
+    strict: bool,
+    needs_relayout: bool,
+    model: &mut Model,
+    get_scroller: &mut GetScroller,
+    required_size: &mut RequiredSize,
 ) -> (Vec2, Vec2)
 where
     Model: ?Sized,
@@ -141,8 +151,11 @@ where
 
 /// Implements `View::layout` on the given model.
 pub fn layout<Model, GetScroller, RequiredSize, Layout>(
-    size: Vec2, needs_relayout: bool, model: &mut Model,
-    mut get_scroller: GetScroller, mut required_size: RequiredSize,
+    size: Vec2,
+    needs_relayout: bool,
+    model: &mut Model,
+    mut get_scroller: GetScroller,
+    mut required_size: RequiredSize,
     mut layout: Layout,
 ) where
     Model: ?Sized,
@@ -172,8 +185,11 @@ pub fn layout<Model, GetScroller, RequiredSize, Layout>(
 
 /// Implements `View::required_size` on the given model.
 pub fn required_size<Model, GetScroller, RequiredSize>(
-    constraint: Vec2, needs_relayout: bool, model: &mut Model,
-    mut get_scroller: GetScroller, mut required_size: RequiredSize,
+    constraint: Vec2,
+    needs_relayout: bool,
+    model: &mut Model,
+    mut get_scroller: GetScroller,
+    mut required_size: RequiredSize,
 ) -> Vec2
 where
     Model: ?Sized,
@@ -194,8 +210,11 @@ where
 
 /// Implements `View::on_event` on the given model.
 pub fn on_event<Model, GetScroller, OnEvent, ImportantArea>(
-    event: Event, model: &mut Model, mut get_scroller: GetScroller,
-    mut on_event: OnEvent, mut important_area: ImportantArea,
+    event: Event,
+    model: &mut Model,
+    mut get_scroller: GetScroller,
+    mut on_event: OnEvent,
+    mut important_area: ImportantArea,
 ) -> EventResult
 where
     Model: ?Sized,
diff --git a/src/view/view_wrapper.rs b/src/view/view_wrapper.rs
index 7a46a3f..ad49278 100644
--- a/src/view/view_wrapper.rs
+++ b/src/view/view_wrapper.rs
@@ -79,7 +79,9 @@ pub trait ViewWrapper: 'static {
 
     /// Wraps the `find` method.
     fn wrap_call_on_any<'a>(
-        &mut self, selector: &Selector<'_>, callback: AnyCb<'a>,
+        &mut self,
+        selector: &Selector<'_>,
+        callback: AnyCb<'a>,
     ) {
         self.with_view_mut(|v| v.call_on_any(selector, callback));
     }
@@ -125,7 +127,8 @@ impl<T: ViewWrapper> View for T {
     }
 
     fn call_on_any<'a>(
-        &mut self, selector: &Selector<'_>,
+        &mut self,
+        selector: &Selector<'_>,
         callback: Box<dyn FnMut(&mut dyn Any) + 'a>,
     ) {
         self.wrap_call_on_any(selector, callback)
diff --git a/src/views/box_view.rs b/src/views/box_view.rs
index 1bfdfff..bd2a73d 100644
--- a/src/views/box_view.rs
+++ b/src/views/box_view.rs
@@ -43,7 +43,9 @@ impl<T: View> BoxView<T> {
     ///
     /// `None` values will use the wrapped view's preferences.
     pub fn new(
-        width: SizeConstraint, height: SizeConstraint, view: T,
+        width: SizeConstraint,
+        height: SizeConstraint,
+        view: T,
     ) -> Self {
         BoxView {
             size: (width, height).into(),
@@ -55,7 +57,9 @@ impl<T: View> BoxView<T> {
 
     /// Sets the size constraints for this view.
     pub fn set_constraints(
-        &mut self, width: SizeConstraint, height: SizeConstraint,
+        &mut self,
+        width: SizeConstraint,
+        height: SizeConstraint,
     ) {
         self.set_width(width);
         self.set_height(height);
diff --git a/src/views/checkbox.rs b/src/views/checkbox.rs
index 9e90c6a..b66848b 100644
--- a/src/views/checkbox.rs
+++ b/src/views/checkbox.rs
@@ -32,7 +32,8 @@ impl Checkbox {
 
     /// Sets a callback to be used when the state changes.
     pub fn set_on_change<F: 'static + Fn(&mut Cursive, bool)>(
-        &mut self, on_change: F,
+        &mut self,
+        on_change: F,
     ) {
         self.on_change = Some(Rc::new(on_change));
     }
@@ -41,7 +42,8 @@ impl Checkbox {
     ///
     /// Chainable variant.
     pub fn on_change<F: 'static + Fn(&mut Cursive, bool)>(
-        self, on_change: F,
+        self,
+        on_change: F,
     ) -> Self {
         self.with(|s| s.set_on_change(on_change))
     }
diff --git a/src/views/dialog.rs b/src/views/dialog.rs
index ee8388d..8c74d16 100644
--- a/src/views/dialog.rs
+++ b/src/views/dialog.rs
@@ -317,7 +317,9 @@ impl Dialog {
 
     // An event is received while a button is in focus
     fn on_event_button(
-        &mut self, event: Event, button_id: usize,
+        &mut self,
+        event: Event,
+        button_id: usize,
     ) -> EventResult {
         let result = {
             let button = &mut self.buttons[button_id];
@@ -655,7 +657,9 @@ impl View for Dialog {
     }
 
     fn call_on_any<'a>(
-        &mut self, selector: &Selector<'_>, callback: AnyCb<'a>,
+        &mut self,
+        selector: &Selector<'_>,
+        callback: AnyCb<'a>,
     ) {
         self.content.call_on_any(selector, callback);
     }
diff --git a/src/views/hideable_view.rs b/src/views/hideable_view.rs
index 9458742..bba943f 100644
--- a/src/views/hideable_view.rs
+++ b/src/views/hideable_view.rs
@@ -91,7 +91,8 @@ impl<V: View> ViewWrapper for HideableView<V> {
     }
 
     fn wrap_call_on_any<'a>(
-        &mut self, selector: &Selector<'_>,
+        &mut self,
+        selector: &Selector<'_>,
         callback: Box<dyn FnMut(&mut dyn Any) + 'a>,
     ) {
         // We always run callbacks, even when invisible.
diff --git a/src/views/id_view.rs b/src/views/id_view.rs
index 7800615..0548dd1 100644
--- a/src/views/id_view.rs
+++ b/src/views/id_view.rs
@@ -77,7 +77,9 @@ impl<T: View + 'static> ViewWrapper for IdView<T> {
 
     // Some for<'b> weirdness here to please the borrow checker gods...
     fn wrap_call_on_any<'a>(
-        &mut self, selector: &Selector<'_>, mut callback: BoxedCallback<'a>,
+        &mut self,
+        selector: &Selector<'_>,
+        mut callback: BoxedCallback<'a>,
     ) {
         match selector {
             &Selector::Id(id) if id == self.id => callback(self),
diff --git a/src/views/linear_layout.rs b/src/views/linear_layout.rs
index 4d15314..619fb61 100644
--- a/src/views/linear_layout.rs
+++ b/src/views/linear_layout.rs
@@ -58,7 +58,9 @@ struct ChildItem<T> {
 
 impl<T> ChildIterator<T> {
     fn new(
-        inner: T, orientation: direction::Orientation, available: usize,
+        inner: T,
+        orientation: direction::Orientation,
+        available: usize,
     ) -> Self {
         ChildIterator {
             inner,
@@ -272,7 +274,9 @@ impl LinearLayout {
 
     /// Returns a cyclic mutable iterator starting with the child in focus
     fn iter_mut<'a>(
-        &'a mut self, from_focus: bool, source: direction::Relative,
+        &'a mut self,
+        from_focus: bool,
+        source: direction::Relative,
     ) -> Box<dyn Iterator<Item = (usize, &mut Child)> + 'a> {
         match source {
             direction::Relative::Front => {
@@ -358,7 +362,8 @@ impl LinearLayout {
 }
 
 fn try_focus(
-    (i, child): (usize, &mut Child), source: direction::Direction,
+    (i, child): (usize, &mut Child),
+    source: direction::Direction,
 ) -> Option<usize> {
     if child.view.take_focus(source) {
         Some(i)
@@ -632,7 +637,9 @@ impl View for LinearLayout {
     }
 
     fn call_on_any<'a>(
-        &mut self, selector: &Selector<'_>, mut callback: AnyCb<'a>,
+        &mut self,
+        selector: &Selector<'_>,
+        mut callback: AnyCb<'a>,
     ) {
         for child in &mut self.children {
             child
diff --git a/src/views/menubar.rs b/src/views/menubar.rs
index 74817d9..1786f13 100644
--- a/src/views/menubar.rs
+++ b/src/views/menubar.rs
@@ -107,7 +107,10 @@ impl Menubar {
 
     /// Insert a new item at the given position.
     pub fn insert_subtree<S>(
-        &mut self, i: usize, title: S, menu: MenuTree,
+        &mut self,
+        i: usize,
+        title: S,
+        menu: MenuTree,
     ) -> &mut Self
     where
         S: Into<String>,
diff --git a/src/views/progress_bar.rs b/src/views/progress_bar.rs
index 5eb8647..1a6a015 100644
--- a/src/views/progress_bar.rs
+++ b/src/views/progress_bar.rs
@@ -121,7 +121,8 @@ impl ProgressBar {
     ///
     /// Chainable variant.
     pub fn with_task<F: FnOnce(Counter) + Send + 'static>(
-        mut self, task: F,
+        mut self,
+        task: F,
     ) -> Self {
         self.start(task);
         self
@@ -141,7 +142,8 @@ impl ProgressBar {
     /// }
     /// ```
     pub fn with_label<F: Fn(usize, (usize, usize)) -> String + 'static>(
-        mut self, label_maker: F,
+        mut self,
+        label_maker: F,
     ) -> Self {
         self.label_maker = Box::new(label_maker);
         self
diff --git a/src/views/radio.rs b/src/views/radio.rs
index a0fc8ea..2e72dfe 100644
--- a/src/views/radio.rs
+++ b/src/views/radio.rs
@@ -56,7 +56,9 @@ impl<T: 'static> RadioGroup<T> {
     ///
     /// The button will display `label` next to it, and will embed `value`.
     pub fn button<S: Into<String>>(
-        &mut self, value: T, label: S,
+        &mut self,
+        value: T,
+        label: S,
     ) -> RadioButton<T> {
         let count = self.state.borrow().values.len();
         self.state.borrow_mut().values.push(Rc::new(value));
@@ -77,7 +79,8 @@ impl<T: 'static> RadioGroup<T> {
 
     /// Sets a callback to be used when the selection changes.
     pub fn set_on_change<F: 'static + Fn(&mut Cursive, &T)>(
-        &mut self, on_change: F,
+        &mut self,
+        on_change: F,
     ) {
         self.state.borrow_mut().on_change = Some(Rc::new(on_change));
     }
@@ -86,7 +89,8 @@ impl<T: 'static> RadioGroup<T> {
     ///
     /// Chainable variant.
     pub fn on_change<F: 'static + Fn(&mut Cursive, &T)>(
-        self, on_change: F,
+        self,
+        on_change: F,
     ) -> Self {
         self.with(|s| s.set_on_change(on_change))
     }
@@ -95,7 +99,8 @@ impl<T: 'static> RadioGroup<T> {
 impl RadioGroup<String> {
     /// Adds a button, using the label itself as value.
     pub fn button_str<S: Into<String>>(
-        &mut self, text: S,
+        &mut self,
+        text: S,
     ) -> RadioButton<String> {
         let text = text.into();
         self.button(text.clone(), text)
@@ -124,7 +129,9 @@ impl<T: 'static> RadioButton<T> {
     impl_enabled!(self.enabled);
 
     fn new(
-        state: Rc<RefCell<SharedState<T>>>, id: usize, label: String,
+        state: Rc<RefCell<SharedState<T>>>,
+        id: usize,
+        label: String,
     ) -> Self {
         RadioButton {
             state,
diff --git a/src/views/select_view.rs b/src/views/select_view.rs
index 254976b..f12e11c 100644
--- a/src/views/select_view.rs
+++ b/src/views/select_view.rs
@@ -273,7 +273,8 @@ impl<T: 'static> SelectView<T> {
 
     /// Gets a mut item at given idx or None.
     pub fn get_item_mut(
-        &mut self, i: usize,
+        &mut self,
+        i: usize,
     ) -> Option<(&mut StyledString, &mut T)> {
         if i >= self.items.len() {
             None
diff --git a/src/views/stack_view.rs b/src/views/stack_view.rs
index f391f9e..1770107 100644
--- a/src/views/stack_view.rs
+++ b/src/views/stack_view.rs
@@ -42,7 +42,10 @@ pub enum LayerPosition {
 
 impl Placement {
     pub fn compute_offset<S, A, P>(
-        &self, size: S, available: A, parent: P,
+        &self,
+        size: S,
+        available: A,
+        parent: P,
     ) -> Vec2
     where
         S: Into<Vec2>,
@@ -169,7 +172,9 @@ impl<T: View> View for ChildWrapper<T> {
     }
 
     fn call_on_any<'a>(
-        &mut self, selector: &Selector<'_>, callback: AnyCb<'a>,
+        &mut self,
+        selector: &Selector<'_>,
+        callback: AnyCb<'a>,
     ) {
         match *self {
             ChildWrapper::Shadow(ref mut v) => {
@@ -490,7 +495,9 @@ impl StackView {
     ///
     /// If `layer` is out of bounds.
     pub fn reposition_layer(
-        &mut self, layer: LayerPosition, position: Position,
+        &mut self,
+        layer: LayerPosition,
+        position: Position,
     ) {
         let i = self.get_index(layer).unwrap();
         let child = &mut self.layers[i];
@@ -659,7 +666,9 @@ impl View for StackView {
     }
 
     fn call_on_any<'a>(
-        &mut self, selector: &Selector<'_>, mut callback: AnyCb<'a>,
+        &mut self,
+        selector: &Selector<'_>,
+        mut callback: AnyCb<'a>,
     ) {
         for layer in &mut self.layers {
             layer
diff --git a/src/xy.rs b/src/xy.rs
index 5a75544..5fbd58a 100644
--- a/src/xy.rs
+++ b/src/xy.rs
@@ -280,7 +280,10 @@ impl<T> XY<T> {
     /// );
     /// ```
     pub fn zip4<U, V, W>(
-        self, a: XY<U>, b: XY<V>, c: XY<W>,
+        self,
+        a: XY<U>,
+        b: XY<V>,
+        c: XY<W>,
     ) -> XY<(T, U, V, W)> {
         XY::new((self.x, a.x, b.x, c.x), (self.y, a.y, b.y, c.y))
     }
@@ -308,7 +311,11 @@ impl<T> XY<T> {
     /// assert_eq!(xy, XY::new(Some('a'), Some('y')));
     /// ```
     pub fn zip5<U, V, W, Z>(
-        self, a: XY<U>, b: XY<V>, c: XY<W>, d: XY<Z>,
+        self,
+        a: XY<U>,
+        b: XY<V>,
+        c: XY<W>,
+        d: XY<Z>,
     ) -> XY<(T, U, V, W, Z)> {
         XY::new((self.x, a.x, b.x, c.x, d.x), (self.y, a.y, b.y, c.y, d.y))
     }