Added enabling/disabling line wrap. (#485)

README.md

@@ -47,6 +47,7 @@ see [Tested Terminals](#tested-terminals) for more info).
     - Alternate screen
     - Raw screen   
     - Set terminal title
+    - Enable/disable line wrapping
 - Event 
     - Input Events 
     - Mouse Events (press, release, position, button, drag)

src/lib.rs

@@ -63,6 +63,8 @@
 //!   - Miscellaneous - [`Clear`](terminal/struct.Clear.html),
 //!     [`SetSize`](terminal/struct.SetSize.html)
 //!     [`SetTitle`](terminal/struct.SetTitle.html)
+//!     [`DisableLineWrap`](terminal/struct.DisableLineWrap.html)
+//!     [`EnableLineWrap`](terminal/struct.EnableLineWrap.html)
 //!   - Alternate screen - [`EnterAlternateScreen`](terminal/struct.EnterAlternateScreen.html),
 //!     [`LeaveAlternateScreen`](terminal/struct.LeaveAlternateScreen.html)
 //!

src/terminal.rs

@@ -82,9 +82,11 @@
 //! For manual execution control check out [crossterm::queue](../macro.queue.html).
 
 #[cfg(windows)]
-use crossterm_winapi::{Handle, ScreenBuffer};
+use crossterm_winapi::{ConsoleMode, Handle, ScreenBuffer};
 #[cfg(feature = "serde")]
 use serde::{Deserialize, Serialize};
+#[cfg(windows)]
+use winapi::um::wincon::ENABLE_WRAP_AT_EOL_OUTPUT;
 
 #[doc(no_inline)]
 use crate::Command;
@@ -114,6 +116,48 @@ pub fn size() -> Result<(u16, u16)> {
     sys::size()
 }
 
+/// Disables line wrapping.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct DisableLineWrap;
+
+impl Command for DisableLineWrap {
+    type AnsiType = &'static str;
+
+    fn ansi_code(&self) -> Self::AnsiType {
+        ansi::DISABLE_LINE_WRAP_CSI_SEQUENCE
+    }
+
+    #[cfg(windows)]
+    fn execute_winapi(&self, _writer: impl FnMut() -> Result<()>) -> Result<()> {
+        let screen_buffer = ScreenBuffer::current()?;
+        let console_mode = ConsoleMode::from(screen_buffer.handle().clone());
+        let new_mode = console_mode.mode()? & !ENABLE_WRAP_AT_EOL_OUTPUT;
+        console_mode.set_mode(new_mode)?;
+        Ok(())
+    }
+}
+
+/// Enable line wrapping.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct EnableLineWrap;
+
+impl Command for EnableLineWrap {
+    type AnsiType = &'static str;
+
+    fn ansi_code(&self) -> Self::AnsiType {
+        ansi::ENABLE_LINE_WRAP_CSI_SEQUENCE
+    }
+
+    #[cfg(windows)]
+    fn execute_winapi(&self, _writer: impl FnMut() -> Result<()>) -> Result<()> {
+        let screen_buffer = ScreenBuffer::current()?;
+        let console_mode = ConsoleMode::from(screen_buffer.handle().clone());
+        let new_mode = console_mode.mode()? | ENABLE_WRAP_AT_EOL_OUTPUT;
+        console_mode.set_mode(new_mode)?;
+        Ok(())
+    }
+}
+
 /// A command that switches to alternate screen.
 ///
 /// # Notes

src/terminal/ansi.rs

@@ -9,6 +9,8 @@ pub(crate) const CLEAR_FROM_CURRENT_LINE_CSI_SEQUENCE: &str = csi!("2K");
 pub(crate) const CLEAR_UNTIL_NEW_LINE_CSI_SEQUENCE: &str = csi!("K");
 pub(crate) const ENTER_ALTERNATE_SCREEN_CSI_SEQUENCE: &str = csi!("?1049h");
 pub(crate) const LEAVE_ALTERNATE_SCREEN_CSI_SEQUENCE: &str = csi!("?1049l");
+pub(crate) const DISABLE_LINE_WRAP_CSI_SEQUENCE: &str = csi!("?7l");
+pub(crate) const ENABLE_LINE_WRAP_CSI_SEQUENCE: &str = csi!("?7h");
 
 pub(crate) fn scroll_up_csi_sequence(count: u16) -> String {
     format!(csi!("{}S"), count)