fix warnings and optimize imports

Author: GyulyVGC

examples/cpu-monitor.rs

@@ -290,7 +290,7 @@ impl Chart<Message> for CpuUsageChart {
     }
 
     fn build_chart<DB: DrawingBackend>(&self, _state: &Self::State, mut chart: ChartBuilder<DB>) {
-        use plotters::{prelude::*, style::Color};
+        use plotters::prelude::*;
 
         const PLOT_LINE_COLOR: RGBColor = RGBColor(0, 175, 255);
 

examples/large-data.rs

@@ -193,7 +193,7 @@ impl Chart<Message> for ExampleChart {
     }
 
     fn build_chart<DB: DrawingBackend>(&self, _state: &Self::State, mut chart: ChartBuilder<DB>) {
-        use plotters::{prelude::*, style::Color};
+        use plotters::prelude::*;
 
         const PLOT_LINE_COLOR: RGBColor = RGBColor(0, 175, 255);
 

src/backend/mod.rs

@@ -4,8 +4,8 @@
 // Copyright: 2022, Joylei <[email protected]>
 // License: MIT
 
-use crate::error::Error;
-use crate::utils::{cvt_color, cvt_stroke, CvtPoint};
+use std::collections::HashSet;
+
 use iced_widget::{
     canvas,
     core::{
@@ -16,6 +16,7 @@ use iced_widget::{
 use once_cell::unsync::Lazy;
 use plotters_backend::{
     text_anchor,
+    //FontTransform,
     BackendColor,
     BackendCoord,
     BackendStyle,
@@ -24,9 +25,10 @@ use plotters_backend::{
     DrawingErrorKind,
     FontFamily,
     FontStyle,
-    //FontTransform,
 };
-use std::collections::HashSet;
+
+use crate::error::Error;
+use crate::utils::{cvt_color, cvt_stroke, CvtPoint};
 
 /// The Iced drawing backend
 pub(crate) struct IcedChartBackend<'a, B> {

src/chart.rs

@@ -31,11 +31,11 @@ where
     type State = C::State;
     #[inline]
     fn build_chart<DB: DrawingBackend>(&self, state: &Self::State, builder: ChartBuilder<DB>) {
-        C::build_chart(self, state, builder)
+        C::build_chart(self, state, builder);
     }
     #[inline]
     fn draw_chart<DB: DrawingBackend>(&self, state: &Self::State, root: DrawingArea<DB, Shift>) {
-        C::draw_chart(self, state, root)
+        C::draw_chart(self, state, root);
     }
     #[inline]
     fn draw<R: Renderer, F: Fn(&mut Frame)>(&self, renderer: &R, size: Size, f: F) -> Geometry {

src/error.rs

@@ -13,7 +13,7 @@ pub enum Error {}
 
 impl fmt::Display for Error {
     fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        write!(fmt, "{:?}", self)
+        write!(fmt, "{self:?}")
     }
 }
 

src/lib.rs

@@ -54,27 +54,26 @@
 #![warn(missing_docs)]
 
 pub extern crate plotters_backend;
-mod backend;
-mod chart;
-mod error;
-mod renderer;
-/// data point sampling
-pub mod sample;
-mod utils;
-mod widget;
+
+#[doc(no_inline)]
+pub use plotters::{chart::ChartBuilder, drawing::DrawingArea};
+#[doc(no_inline)]
+pub use plotters_backend::DrawingBackend;
 
 #[doc(inline)]
 pub use chart::Chart;
 #[doc(inline)]
 pub use chart::Renderer;
-
 #[doc(inline)]
 pub use error::Error;
-
-#[doc(no_inline)]
-pub use plotters::{chart::ChartBuilder, drawing::DrawingArea};
-#[doc(no_inline)]
-pub use plotters_backend::DrawingBackend;
-
 /// Chart container, turns [`Chart`]s to [`iced_native::Widget`]s
 pub use widget::ChartWidget;
+
+mod backend;
+mod chart;
+mod error;
+mod renderer;
+/// data point sampling
+pub mod sample;
+mod utils;
+mod widget;

src/renderer.rs

@@ -4,15 +4,16 @@
 // Copyright: 2022, Joylei <[email protected]>
 // License: MIT
 
-use crate::backend::IcedChartBackend;
-use crate::Chart;
 use iced_widget::{
     canvas::{Cache, Frame},
     core::{Layout, Size, Vector},
     renderer::Geometry,
 };
 use plotters::prelude::DrawingArea;
 
+use crate::backend::IcedChartBackend;
+use crate::Chart;
+
 /// Graphics Renderer
 pub trait Renderer:
     iced_widget::core::Renderer + iced_widget::core::text::Renderer + iced_graphics::geometry::Renderer
@@ -52,6 +53,6 @@ impl<Theme> Renderer for iced_widget::renderer::Renderer<Theme> {
         let translation = Vector::new(bounds.x, bounds.y);
         iced_widget::core::Renderer::with_translation(self, translation, |renderer| {
             iced_graphics::geometry::Renderer::draw(renderer, vec![geometry]);
-        })
+        });
     }
 }

src/widget.rs

@@ -4,9 +4,8 @@
 // Copyright: 2022, Joylei <[email protected]>
 // License: MIT
 
-use super::Chart;
-use crate::renderer::Renderer;
 use core::marker::PhantomData;
+
 use iced_widget::{
     canvas::Event,
     core::{
@@ -18,6 +17,10 @@ use iced_widget::{
     },
 };
 
+use crate::renderer::Renderer;
+
+use super::Chart;
+
 /// Chart container, turns [`Chart`]s to [`Widget`]s
 pub struct ChartWidget<'a, Message, Renderer, C>
 where