Added `silent` implemetor

Cargo.toml

@@ -2,7 +2,7 @@
 name = "termprogress"
 description = "A terminal progress bar renderer with status and spinners"
 license = "GPL-3.0-or-later"
-version = "0.2.2"
+version = "0.2.3"
 authors = ["Avril <flanchan@cumallover.me>"]
 edition = "2018"
 

src/inter.rs

@@ -39,5 +39,15 @@ pub trait ProgressBar: Display
 /// A trait for any bar without progress. You can implemnent your own styles through this trait.
 pub trait Spinner: Display
 {
+    /// Cause the spinner to increment once.
     fn bump(&mut self);
 }
+
+/// A trait for creating a progress bar or spinner with a title.
+pub trait WithTitle: Sized + ProgressBar + Display
+{
+    fn with_title(len: usize, string: impl AsRef<str>) -> Self;
+    fn update(&mut self);
+    fn complete(self);
+}
+

src/lib.rs

@@ -16,6 +16,7 @@ pub use inter::*;
 pub mod progress;
 pub mod wheel;
 pub mod spinner;
+pub mod silent;
 
 /// The prelude exposes the traits for spinners and progress bars, and the `spinner::Spin` and `progress::Bar` types for easy access and use.
 pub mod prelude {
@@ -23,5 +24,6 @@ pub mod prelude {
     pub use super::{
 	spinner::Spin,
 	progress::Bar,
+	silent::Silent,
     };
 }

src/progress.rs

@@ -253,3 +253,19 @@ impl ProgressBar for Bar
 	self.refresh();
     }
 }
+
+impl WithTitle for Bar
+{
+    fn with_title(len: usize, string: impl AsRef<str>) -> Self
+    {
+	Self::with_title(len, string)
+    }
+    fn update(&mut self)
+    {
+	self.update();
+    }
+    fn complete(self)
+    {
+	self.complete();
+    }
+}

src/silent.rs

@@ -0,0 +1,42 @@
+//! A silent progress bar and spinner that does nothing.
+//!
+//! Useful for when progress bars are optional.
+
+use super::*;
+
+
+/// An implementor for the `Display`, `ProgressBar`, `Spinner`, and `WithTitle` that does nothing.
+///
+/// It also implements `Display::println()` and `Display::eprintln()` to do nothing as well.
+#[derive(Debug)]
+pub struct Silent;
+
+impl Display for Silent
+{
+    #[inline] fn println(&self, _: &str){}
+    #[inline] fn eprintln(&self, _: &str){}
+    #[inline] fn refresh(&self){}
+    #[inline] fn blank(&self){}
+    #[inline] fn get_title(&self) -> &str{""}
+    #[inline] fn set_title(&mut self, _: &str){}
+    #[inline] fn update_dimensions(&mut self, _:usize){}
+}
+
+impl ProgressBar for Silent
+{
+    #[inline] fn set_progress(&mut self, _:f64){}
+    #[inline] fn get_progress(&self) -> f64{0.0}
+}
+
+impl Spinner for Silent
+{
+    #[inline] fn bump(&mut self){}
+}
+
+impl WithTitle for Silent
+{
+    #[inline] fn with_title(_: usize, _: impl AsRef<str>) -> Self{Self}
+    #[inline] fn update(&mut self) {}
+    #[inline] fn complete(self) {}
+}
+

src/spinner.rs

@@ -119,3 +119,20 @@ impl Spinner for Spin
 	self.refresh();
     }
 }
+
+
+impl WithTitle for Spin
+{
+    fn with_title(_: usize, t: impl AsRef<str>) -> Self
+    {
+	Self::with_title(t, Default::default())
+    }
+    fn update(&mut self)
+    {
+	Self::update(self)	    
+    }
+    fn complete(self)
+    {
+	Self::complete(self)
+    }
+}