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use crate::display::utils::clone_times;
use crate::display::utils::times;
use crate::types::BoundingBox;
use crate::types::Dimensions;
use crate::types::Neighbors;
use itertools::Itertools;
use proptest::prelude::Arbitrary;
use proptest::strategy;
use proptest_derive::Arbitrary;
use std::io::{self, Write};
// Box Drawing
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
// U+250x ─ ━ │ ┃ ┄ ┅ ┆ ┇ ┈ ┉ ┊ ┋ ┌ ┍ ┎ ┏
// U+251x ┐ ┑ ┒ ┓ └ ┕ ┖ ┗ ┘ ┙ ┚ ┛ ├ ┝ ┞ ┟
// U+252x ┠ ┡ ┢ ┣ ┤ ┥ ┦ ┧ ┨ ┩ ┪ ┫ ┬ ┭ ┮ ┯
// U+253x ┰ ┱ ┲ ┳ ┴ ┵ ┶ ┷ ┸ ┹ ┺ ┻ ┼ ┽ ┾ ┿
// U+254x ╀ ╁ ╂ ╃ ╄ ╅ ╆ ╇ ╈ ╉ ╊ ╋ ╌ ╍ ╎ ╏
// U+255x ═ ║ ╒ ╓ ╔ ╕ ╖ ╗ ╘ ╙ ╚ ╛ ╜ ╝ ╞ ╟
// U+256x ╠ ╡ ╢ ╣ ╤ ╥ ╦ ╧ ╨ ╩ ╪ ╫ ╬ ╭ ╮ ╯
// U+257x ╰ ╱ ╲ ╳ ╴ ╵ ╶ ╷ ╸ ╹ ╺ ╻ ╼ ╽ ╾ ╿
static BOX: char = '☐';
static BOX_CHARS: [[char; 16]; 8] = [
// 0
[
// 0 1 2 3 4 5 6 7 8 9
'─', '━', '│', '┃', '┄', '┅', '┆', '┇', '┈', '┉',
// 10
'┊', '┋', '┌', '┍', '┎', '┏',
],
// 1
[
// 0 1 2 3 4 5 6 7 8 9
'┐', '┑', '┒', '┓', '└', '┕', '┖', '┗', '┘', '┙',
'┚', '┛', '├', '┝', '┞', '┟',
],
// 2
[
// 0 1 2 3 4 5 6 7 8 9
'┠', '┡', '┢', '┣', '┤', '┥', '┦', '┧', '┨', '┩',
'┪', '┫', '┬', '┭', '┮', '┯',
],
// 3
[
// 0 1 2 3 4 5 6 7 8 9
'┰', '┱', '┲', '┳', '┴', '┵', '┶', '┷', '┸', '┹',
'┺', '┻', '┼', '┽', '┾', '┿',
],
// 4
[
// 0 1 2 3 4 5 6 7 8 9
'╀', '╁', '╂', '╃', '╄', '╅', '╆', '╇', '╈', '╉',
'╊', '╋', '╌', '╍', '╎', '╏',
],
// 5
[
// 0 1 2 3 4 5 6 7 8 9
'═', '║', '╒', '╓', '╔', '╕', '╖', '╗', '╘', '╙',
'╚', '╛', '╜', '╝', '╞', '╟',
],
// 6
[
// 0 1 2 3 4 5 6 7 8 9
'╠', '╡', '╢', '╣', '╤', '╥', '╦', '╧', '╨', '╩',
'╪', '╫', '╬', '╭', '╮', '╯',
],
// 7
[
// 0 1 2 3 4 5 6 7 8 9
'╰', '╱', '╲', '╳', '╴', '╵', '╶', '╷', '╸', '╹',
'╺', '╻', '╼', '╽', '╾', '╿',
],
];
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum BoxStyle {
Thin,
Thick,
Dotted,
ThickDotted,
Dashed,
ThickDashed,
Double,
}
impl Arbitrary for BoxStyle {
type Parameters = ();
type Strategy = strategy::Just<Self>;
fn arbitrary_with(_: Self::Parameters) -> Self::Strategy {
// TODO
strategy::Just(BoxStyle::Thin)
}
}
pub trait Stylable {
fn style(&self, style: BoxStyle) -> char;
}
#[derive(Clone, Copy, Debug, PartialEq, Eq, Arbitrary)]
enum Corner {
TopRight,
TopLeft,
BottomRight,
BottomLeft,
}
impl Stylable for Corner {
fn style(&self, style: BoxStyle) -> char {
use BoxStyle::*;
use Corner::*;
match (self, style) {
(TopRight, Thin) => BOX_CHARS[1][0],
(TopLeft, Thin) => BOX_CHARS[0][12],
(BottomRight, Thin) => BOX_CHARS[1][8],
(BottomLeft, Thin) => BOX_CHARS[1][4],
_ => unimplemented!(),
}
}
}
#[derive(Clone, Copy, Debug, PartialEq, Eq, Arbitrary)]
enum Line {
H,
V,
}
impl Stylable for Line {
fn style(&self, style: BoxStyle) -> char {
use BoxStyle::*;
use Line::*;
match (self, style) {
(H, Thin) => BOX_CHARS[0][0],
(V, Thin) => BOX_CHARS[0][2],
_ => unimplemented!(),
}
}
}
impl Stylable for Neighbors<Option<BoxStyle>> {
fn style(&self, _style: BoxStyle) -> char {
use BoxStyle::*;
match (self.left, self.right, self.top, self.bottom) {
(None, None, None, None) => BOX,
(Some(Thin), None, None, None) => BOX_CHARS[7][4],
(None, Some(Thin), None, None) => BOX_CHARS[7][6],
(None, None, Some(Thin), None) => BOX_CHARS[7][5],
(None, None, None, Some(Thin)) => BOX_CHARS[7][7],
(Some(Thin), Some(Thin), None, None) => Line::H.style(Thin),
(Some(Thin), None, Some(Thin), None) => {
Corner::BottomRight.style(Thin)
}
(Some(Thin), None, None, Some(Thin)) => {
Corner::TopRight.style(Thin)
}
(None, Some(Thin), Some(Thin), None) => {
Corner::BottomLeft.style(Thin)
}
(None, Some(Thin), None, Some(Thin)) => Corner::TopLeft.style(Thin),
(None, None, Some(Thin), Some(Thin)) => Line::V.style(Thin),
(None, Some(Thin), Some(Thin), Some(Thin)) => BOX_CHARS[1][12],
(Some(Thin), None, Some(Thin), Some(Thin)) => BOX_CHARS[2][4],
(Some(Thin), Some(Thin), None, Some(Thin)) => BOX_CHARS[2][12],
(Some(Thin), Some(Thin), Some(Thin), None) => BOX_CHARS[3][4],
(Some(Thin), Some(Thin), Some(Thin), Some(Thin)) => {
BOX_CHARS[3][12]
}
neighs => panic!("unimplemented: {:?}", neighs),
}
}
}
#[must_use]
pub fn make_box(style: BoxStyle, dims: Dimensions) -> String {
if dims.h == 0 || dims.w == 0 {
"".to_string()
} else if dims.h == 1 && dims.w == 1 {
BOX.to_string()
} else if dims.h == 1 {
times(Line::H.style(style), dims.w)
} else if dims.w == 1 {
(0..dims.h).map(|_| Line::V.style(style)).join("\n\r")
} else {
let h_line: String = times(Line::H.style(style), dims.w - 2);
let v_line = Line::V.style(style);
let v_walls: String = clone_times(
format!(
"{}{}{}\n\r",
v_line,
times::<_, String>(' ', dims.w - 2),
v_line
),
dims.h - 2,
);
format!(
"{}{}{}\n\r{}{}{}{}",
Corner::TopLeft.style(style),
h_line,
Corner::TopRight.style(style),
v_walls,
Corner::BottomLeft.style(style),
h_line,
Corner::BottomRight.style(style),
)
}
}
/// Draw the box described by the given BoundingBox's position and dimensions to
/// the given output, with the given style
pub fn draw_box<W: Write>(
out: &mut W,
bbox: BoundingBox,
style: BoxStyle,
) -> io::Result<()> {
write!(
out,
"{}{}",
bbox.position.cursor_goto(),
make_box(style, bbox.dimensions)
)
}
#[cfg(test)]
mod tests {
use super::*;
use proptest::prelude::*;
#[test]
fn make_thin_box() {
let res = make_box(BoxStyle::Thin, Dimensions { w: 10, h: 10 });
assert_eq!(
res,
"┌────────┐
\r│ │
\r│ │
\r│ │
\r│ │
\r│ │
\r│ │
\r│ │
\r│ │
\r└────────┘"
);
}
proptest! {
#[test]
fn box_has_height_lines(dims: Dimensions, style: BoxStyle) {
let res = make_box(style, dims);
prop_assume!((dims.w > 0 && dims.h > 0));
assert_eq!(res.split("\n\r").count(), dims.h as usize);
}
#[test]
fn box_lines_have_width_length(dims: Dimensions, style: BoxStyle) {
let res = make_box(style, dims);
prop_assume!(dims.w == 0 && dims.h == 0 || (dims.w > 0 && dims.h > 0));
assert!(res.split("\n\r").all(|l| l.chars().count() == dims.w as usize));
}
}
}
|
