From f909b3db954fd47a7d1f04a55dd7f75ca058ffb5 Mon Sep 17 00:00:00 2001
From: Timon <timonpost@hotmail.nl>
Date: Mon, 23 Aug 2021 19:07:55 +0200
Subject: [PATCH] 0.21 (#596)

---
 CHANGELOG.md                | 5 +++++
 Cargo.toml                  | 2 +-
 src/event/read.rs           | 2 +-
 src/terminal/sys/windows.rs | 3 +++
 4 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 625b1c96b..0b6f4437b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# Version 0.21
+- Expose `is_raw` function.
+- Add 'purge' option on unix system, this clears the entire screen buffer. 
+- Improve serialisation for color enum values.
+
 # Version 0.20
 - Update from signal-hook with 'mio-feature flag' to signal-hook-mio 0.2.1. 
 - Manually implements Eq, PartialEq and Hash for KeyEvent improving equality checks and hash calculation. 
diff --git a/Cargo.toml b/Cargo.toml
index 52c8f5189..73265461f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "crossterm"
-version = "0.20.0"
+version = "0.21.0"
 authors = ["T. Post"]
 description = "A crossplatform terminal library for manipulating terminals."
 repository = "https://github.com/crossterm-rs/crossterm"
diff --git a/src/event/read.rs b/src/event/read.rs
index 34e8892a1..72b0830d0 100644
--- a/src/event/read.rs
+++ b/src/event/read.rs
@@ -43,7 +43,7 @@ impl InternalEventReader {
         F: Filter,
     {
         for event in &self.events {
-            if filter.eval(&event) {
+            if filter.eval(event) {
                 return Ok(true);
             }
         }
diff --git a/src/terminal/sys/windows.rs b/src/terminal/sys/windows.rs
index d948b502c..0e5722774 100644
--- a/src/terminal/sys/windows.rs
+++ b/src/terminal/sys/windows.rs
@@ -74,6 +74,9 @@ pub(crate) fn clear(clear_type: ClearType) -> Result<()> {
         ClearType::FromCursorUp => clear_before_cursor(pos, buffer_size, current_attribute)?,
         ClearType::CurrentLine => clear_current_line(pos, buffer_size, current_attribute)?,
         ClearType::UntilNewLine => clear_until_line(pos, buffer_size, current_attribute)?,
+        _ => {
+            clear_entire_screen(buffer_size, current_attribute)?;
+        } //TODO: make purge flush the entire screen buffer not just the visible window.
     };
     Ok(())
 }