cursion 0.1.0

//! Cursor management
use std::fmt;

#[derive(Debug, PartialEq, Eq, Clone, Copy)]
/// Cursor shapes
pub enum CursorShape {
    /// Default
    Default,
    /// Blinking box
    BlinkingBlock,
    /// Steady box
    SteadyBlock,
    /// Blinking underline
    BlinkingUnderline,
    /// Steady underline
    SteadyUnderline,
    /// Blinking bar
    BlinkingBar,
    /// Steady bar
    SteadyBar,
}

#[derive(Debug, PartialEq, Eq, Clone, Copy)]
/// Cursor state
pub struct Cursor {
    /// 0-indexed row
    pub row: usize,
    /// 0-indexed column
    pub col: usize,
    /// A shape for cursor
    pub shape: CursorShape,
}

impl fmt::Display for CursorShape {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        match self {
            CursorShape::Default => "\x1b[\x30 q".fmt(f),
            CursorShape::BlinkingBlock => "\x1b[\x31 q".fmt(f),
            CursorShape::SteadyBlock => "\x1b[\x32 q".fmt(f),
            CursorShape::BlinkingUnderline => "\x1b[\x33 q".fmt(f),
            CursorShape::SteadyUnderline => "\x1b[\x34 q".fmt(f),
            CursorShape::BlinkingBar => "\x1b[\x35 q".fmt(f),
            CursorShape::SteadyBar => "\x1b[\x36 q".fmt(f),
        }
    }
}

impl Default for CursorShape {
    fn default() -> Self {
        CursorShape::Default
    }
}