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use std::fmt;
use crate::bitmap::MapPoint;
#[derive(Debug, Copy, Clone)]
pub enum Brush {
Line(LineBrush),
Circle(CircleBrush),
RectSelect(RectSelectBrush),
Fill,
Custom { size: u8 },
}
#[derive(Debug, Copy, Clone)]
pub struct LineBrush {
pub size: u8,
pub start: Option<MapPoint>,
pub extend: bool,
}
#[derive(Debug, Copy, Clone)]
pub struct CircleBrush {
pub size: u8,
}
#[derive(Debug, Copy, Clone)]
pub struct RectSelectBrush {
pub start: Option<MapPoint>,
pub end: Option<MapPoint>,
pub active_end: bool,
}
impl Brush {
pub fn grow(&mut self) {
match self {
Brush::Line(LineBrush { ref mut size, .. }) => *size += 1,
Brush::Circle(CircleBrush { ref mut size, .. }) => *size += 1,
Brush::Custom { ref mut size, .. } => *size += 1,
_ => (),
}
}
pub fn shrink(&mut self) {
match self {
Brush::Line(LineBrush { ref mut size, .. }) => *size = size.saturating_sub(1),
Brush::Circle(CircleBrush { ref mut size, .. }) => *size = size.saturating_sub(1),
Brush::Custom { ref mut size, .. } => *size = size.saturating_sub(1),
_ => (),
}
}
pub fn new(size: u8) -> Self {
Brush::Circle(CircleBrush { size })
}
pub fn line(size: u8, extend: bool) -> Self {
Brush::Line(LineBrush {
size,
start: None,
extend,
})
}
pub fn rect() -> Self {
Brush::RectSelect(RectSelectBrush {
start: None,
end: None,
active_end: true,
})
}
pub fn is_line(&self) -> bool {
matches!(self, Self::Line(_))
}
pub fn is_rect(&self) -> bool {
matches!(self, Self::RectSelect(_))
}
pub fn size(&self) -> Option<u8> {
match self {
Brush::Line(LineBrush { size, .. }) => Some(*size),
Brush::Circle(CircleBrush { size }) => Some(*size),
_ => None,
}
}
}
impl fmt::Display for Brush {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Brush::Line(LineBrush { extend, .. }) => {
write!(f, "LINE{}", if *extend { "+" } else { "" })
}
Brush::Circle(..) => write!(f, "CIRCLE"),
Brush::RectSelect { .. } => write!(f, "SELECT"),
Brush::Fill => write!(f, "FILL"),
Brush::Custom { .. } => write!(f, "CUSTOM"),
}
}
}
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