267 lines
9 KiB
Rust
267 lines
9 KiB
Rust
use voca_rs::*;
|
|
|
|
// carry's information about the anchor point for a bubble, what column to wrap words at, and what the bubbles border looks like
|
|
pub struct BubbleConfig {
|
|
anchor: usize,
|
|
wrap: usize,
|
|
no_wrap: bool,
|
|
|
|
top: String,
|
|
left: String,
|
|
right: String,
|
|
bottom: String,
|
|
top_left: String,
|
|
top_right: String,
|
|
bottom_left: String,
|
|
bottom_right: String,
|
|
middle_left: String,
|
|
middle_right: String,
|
|
}
|
|
|
|
impl BubbleConfig {
|
|
// assembles a config from critical information, attempting to use sensible defaults where possible
|
|
pub fn config_from_string(
|
|
anchor: usize,
|
|
wrap: usize,
|
|
no_wrap: bool,
|
|
border: &Option<String>,
|
|
) -> BubbleConfig {
|
|
if let Some(border) = border {
|
|
let chars = split::graphemes(&border);
|
|
let top = if let Some(item) = chars.get(0) {
|
|
item.to_string()
|
|
} else {
|
|
// Some("") results in the default like None
|
|
return BubbleConfig {
|
|
anchor,
|
|
wrap,
|
|
no_wrap,
|
|
|
|
top: "_".to_string(),
|
|
left: "<".to_string(),
|
|
right: ">".to_string(),
|
|
bottom: "-".to_string(),
|
|
top_left: "/".to_string(),
|
|
top_right: "\\".to_string(),
|
|
bottom_left: "\\".to_string(),
|
|
bottom_right: "/".to_string(),
|
|
middle_left: "|".to_string(),
|
|
middle_right: "|".to_string(),
|
|
};
|
|
};
|
|
//
|
|
let left = if let Some(item) = chars.get(1) {
|
|
item.to_string()
|
|
} else {
|
|
top.clone()
|
|
};
|
|
let right = if let Some(item) = chars.get(2) {
|
|
item.to_string()
|
|
} else {
|
|
left.clone()
|
|
};
|
|
let bottom = if let Some(item) = chars.get(3) {
|
|
item.to_string()
|
|
} else {
|
|
top.clone()
|
|
};
|
|
let top_left = if let Some(item) = chars.get(4) {
|
|
item.to_string()
|
|
} else {
|
|
left.clone()
|
|
};
|
|
let top_right = if let Some(item) = chars.get(5) {
|
|
item.to_string()
|
|
} else {
|
|
right.clone()
|
|
};
|
|
let bottom_left = if let Some(item) = chars.get(6) {
|
|
item.to_string()
|
|
} else {
|
|
left.clone()
|
|
};
|
|
let bottom_right = if let Some(item) = chars.get(7) {
|
|
item.to_string()
|
|
} else {
|
|
right.clone()
|
|
};
|
|
let middle_left = if let Some(item) = chars.get(8) {
|
|
item.to_string()
|
|
} else {
|
|
left.clone()
|
|
};
|
|
let middle_right = if let Some(item) = chars.get(9) {
|
|
item.to_string()
|
|
} else {
|
|
right.clone()
|
|
};
|
|
BubbleConfig {
|
|
anchor,
|
|
wrap,
|
|
no_wrap,
|
|
|
|
top,
|
|
left,
|
|
right,
|
|
bottom,
|
|
top_left,
|
|
top_right,
|
|
bottom_left,
|
|
bottom_right,
|
|
middle_left,
|
|
middle_right,
|
|
}
|
|
} else {
|
|
BubbleConfig {
|
|
anchor,
|
|
wrap,
|
|
no_wrap,
|
|
|
|
top: "_".to_string(),
|
|
left: "<".to_string(),
|
|
right: ">".to_string(),
|
|
bottom: "-".to_string(),
|
|
top_left: "/".to_string(),
|
|
top_right: "\\".to_string(),
|
|
bottom_left: "\\".to_string(),
|
|
bottom_right: "/".to_string(),
|
|
middle_left: "|".to_string(),
|
|
middle_right: "|".to_string(),
|
|
}
|
|
}
|
|
}
|
|
|
|
// front end to bubble_from_lines which takes normal text.
|
|
pub fn bubble_from_text(&self, text: &str) -> String {
|
|
if self.no_wrap {
|
|
self.bubble_from_lines(&text.lines().map(|s| s.to_string()).collect())
|
|
} else {
|
|
self.bubble_from_lines(&wrap_block(text, self.wrap))
|
|
}
|
|
}
|
|
|
|
// generates a bubble (doesn't end in newline) using a vector of strings as lines.
|
|
fn bubble_from_lines(&self, lines: &Vec<String>) -> String {
|
|
let longest_length: usize;
|
|
match lines.iter().map(|s| count::count_graphemes(s)).max() {
|
|
None => return "".to_string(),
|
|
Some(l) => longest_length = l,
|
|
};
|
|
|
|
let left_pad_length = if longest_length < self.anchor {
|
|
self.anchor + (longest_length / 2) + 2
|
|
} else {
|
|
0
|
|
};
|
|
|
|
let bubble_top = manipulate::pad_left(
|
|
&format!(" {} \n", self.top.repeat(longest_length + 2),),
|
|
left_pad_length,
|
|
" ",
|
|
);
|
|
let bubble_bottom = manipulate::pad_left(
|
|
&format!(" {} \n", self.bottom.repeat(longest_length + 2),),
|
|
left_pad_length,
|
|
" ",
|
|
);
|
|
let mut bubble_body = String::new();
|
|
match lines.len() {
|
|
1 => bubble_body.push_str(&manipulate::pad_left(
|
|
&format!("{} {} {}\n", self.left, lines[0], self.right),
|
|
left_pad_length,
|
|
" ",
|
|
)),
|
|
n => {
|
|
for (i, line) in lines.iter().enumerate() {
|
|
let (left, right) = if i == 0 {
|
|
(self.top_left.clone(), self.top_right.clone())
|
|
} else if i == n - 1 {
|
|
(self.bottom_left.clone(), self.bottom_right.clone())
|
|
} else {
|
|
(self.middle_left.clone(), self.middle_right.clone())
|
|
};
|
|
bubble_body.push_str(&manipulate::pad_left(
|
|
&format!(
|
|
"{} {}{} {}\n",
|
|
left,
|
|
line,
|
|
" ".repeat(longest_length - count::count_graphemes(&line)),
|
|
right
|
|
),
|
|
left_pad_length,
|
|
" ",
|
|
));
|
|
}
|
|
}
|
|
}
|
|
return format!("{}{}{}", bubble_top, bubble_body, bubble_bottom);
|
|
}
|
|
}
|
|
|
|
// "breaks off" a wrapped line of text and returns it with the rests of the text.
|
|
fn wrap_once(text: &str, max_length: usize) -> (String, Option<String>) {
|
|
let whitespace_not_newline = |c: char| c.is_whitespace() && c != '\n';
|
|
let mut length: usize = 0;
|
|
let mut last_space: Option<usize> = None;
|
|
|
|
for s in split::graphemes(text) {
|
|
length = length + 1;
|
|
if s == "\n" {
|
|
// chop::substring treats 0 as 'till the end of the string' so if we want to cut off initial
|
|
// newlines into empty strings we need special handling
|
|
let broken_line = if length == 1 {
|
|
"".to_string()
|
|
} else {
|
|
chop::substring(text, 0, length - 1)
|
|
};
|
|
let rest = chop::substring(text, length, count::count_graphemes(text))
|
|
.trim_start_matches(whitespace_not_newline)
|
|
.to_string();
|
|
return (broken_line, Some(rest));
|
|
}
|
|
if query::is_blank(s) {
|
|
// minus one because last_space is an index
|
|
last_space = Some(length - 1);
|
|
}
|
|
if length == max_length {
|
|
match last_space {
|
|
None => {
|
|
// breaks in middle of word as in cowsay
|
|
let broken_line = chop::substring(text, 0, length);
|
|
let rest = chop::substring(text, length, count::count_graphemes(text))
|
|
.trim_start_matches(whitespace_not_newline)
|
|
.to_string();
|
|
return (broken_line, Some(rest));
|
|
}
|
|
Some(last_space) => {
|
|
// break at last whitespace, discarding it
|
|
let broken_line = chop::substring(text, 0, last_space);
|
|
let rest = chop::substring(text, last_space + 1, count::count_graphemes(text))
|
|
.trim_start_matches(whitespace_not_newline)
|
|
.to_string();
|
|
return (broken_line, Some(rest));
|
|
}
|
|
};
|
|
};
|
|
}
|
|
// if we get here it means the string wasn't long enough to be broken
|
|
return (text.to_string(), None);
|
|
}
|
|
|
|
/*
|
|
splits a bunch of text into wrapped lines
|
|
*/
|
|
fn wrap_block(text: &str, max_length: usize) -> Vec<String> {
|
|
let mut lines: Vec<String> = vec![];
|
|
let mut remaining = text.trim_end().to_string();
|
|
loop {
|
|
let (line, rest) = wrap_once(&remaining, max_length);
|
|
lines.push(line);
|
|
match rest {
|
|
None => break,
|
|
Some(rest) => remaining = rest,
|
|
};
|
|
}
|
|
return lines;
|
|
}
|