add ansi escape codes

src/ansi.rs

@@ -1,21 +1,186 @@
 use std::fmt;
 
-pub struct CursorHome {}
-
-impl fmt::Display for CursorHome {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "")
-    }
-}
-
-pub enum Cursor {
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum CursorMovement {
     Move(u16, u16),
     Up(u16),
     Down(u16),
     Right(u16),
     Left(u16),
-    Column(u16),
-    Home,
     Save,
     Restore,
 }
+
+impl fmt::Display for CursorMovement {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let str = match *self {
+            Self::Move(x, y) => &format!("[{x};{y}H"),
+            Self::Up(n) => &format!("[{n}A"),
+            Self::Down(n) => &format!("[{n}B"),
+            Self::Left(n) => &format!("[{n}D"),
+            Self::Right(n) => &format!("[{n}C"),
+            Self::Save => "7",
+            Self::Restore => "8",
+        };
+        write!(f, "\x1b{str}")
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum CursorShape {
+    Reset,
+    BlockBlinking,
+    BlockSteady,
+    UnderlineBlinking,
+    UnderlineSteady,
+    BarBlinking,
+    BarSteady,
+}
+
+impl fmt::Display for CursorShape {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let str = match *self {
+            Self::Reset => "0",
+            Self::BlockBlinking => "1",
+            Self::BlockSteady => "2",
+            Self::UnderlineBlinking => "3",
+            Self::UnderlineSteady => "4",
+            Self::BarBlinking => "5",
+            Self::BarSteady => "6",
+        };
+        write!(f, "\x1b[{str} q")
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum Erase {
+    Screen,
+    Line,
+    CursorToScreenStart,
+    CursorToScreenEnd,
+    CursorToLineStart,
+    CursorToLineEnd,
+}
+
+impl fmt::Display for Erase {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let str = match *self {
+            Self::Screen => "2J",
+            Self::Line => "2K",
+            Self::CursorToScreenStart => "1J",
+            Self::CursorToScreenEnd => "0J",
+            Self::CursorToLineStart => "1K",
+            Self::CursorToLineEnd => "0K",
+        };
+        write!(f, "\x1b[{str}")
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum Style {
+    ResetAll,
+    Bold,
+    Dim,
+    Italic,
+    Underline,
+    Blinking,
+    Reverse,
+    Hidden,
+    Strikethrough,
+}
+
+impl fmt::Display for Style {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let str = match *self {
+            Self::ResetAll => "0",
+            Self::Bold => "1",
+            Self::Dim => "2",
+            Self::Italic => "3",
+            Self::Underline => "4",
+            Self::Blinking => "5",
+            Self::Reverse => "7",
+            Self::Hidden => "8",
+            Self::Strikethrough => "9",
+        };
+        write!(f, "\x1b[{str}m")
+    }
+}
+
+impl fmt::LowerHex for Style {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let str = match *self {
+            Self::ResetAll => "0",
+            Self::Bold | Self::Dim => "22",
+            Self::Italic => "23",
+            Self::Underline => "24",
+            Self::Blinking => "25",
+            Self::Reverse => "27",
+            Self::Hidden => "28",
+            Self::Strikethrough => "29",
+        };
+        write!(f, "\x1b[{str}m")
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum Color {
+    Rgb(u8, u8, u8),
+    Black,
+    Red,
+    Green,
+    Yellow,
+    Blue,
+    Magenta,
+    Cyan,
+    White,
+    Default,
+}
+
+impl fmt::Display for Color {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let str = match *self {
+            Self::Rgb(r, g, b) => &format!("38;2;{r};{g};{b}"),
+            Self::Black => "30",
+            Self::Red => "31",
+            Self::Green => "32",
+            Self::Yellow => "33",
+            Self::Blue => "34",
+            Self::Magenta => "35",
+            Self::Cyan => "36",
+            Self::White => "37",
+            Self::Default => "39",
+        };
+        write!(f, "\x1b[{str}m")
+    }
+}
+
+impl fmt::Binary for Color {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let str = match *self {
+            Self::Rgb(r, g, b) => &format!("48;2;{r};{g};{b}"),
+            Self::Black => "40",
+            Self::Red => "41",
+            Self::Green => "42",
+            Self::Yellow => "43",
+            Self::Blue => "44",
+            Self::Magenta => "45",
+            Self::Cyan => "46",
+            Self::White => "47",
+            Self::Default => "49",
+        };
+        write!(f, "\x1b[{str}m")
+    }
+}
+
+pub fn enter_alternate_screen() {
+    println!("\x1b[?1049h");
+}
+
+pub fn exit_alternate_screen() {
+    println!("\x1b[?1049l");
+}
+
+pub fn set_window_title(title: &str) {
+    assert!(title.len() <= 255, "Title length longer than maximum of 255");
+    println!("\x1b]0;{title}\x1b\x5c");
+}