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Wrap table cells as needed

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This commit is contained in:
Jonathan Turner 2019-08-16 17:47:47 +12:00
parent 3b0c9ebf28
commit eb6e24c220
3 changed files with 79 additions and 0 deletions
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14
Cargo.lock generated
View file

@ -1994,8 +1994,10 @@ dependencies = [
"tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"term 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
"textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
"toml 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
"toml-query 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
"unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
"unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"uuid 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
"which 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
@ -3165,6 +3167,16 @@ dependencies = [
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "term_size"
version = "0.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.60 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "termcolor"
version = "1.0.5"
@ -3186,6 +3198,7 @@ name = "textwrap"
version = "0.11.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"term_size 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
"unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -4080,6 +4093,7 @@ dependencies = [
"checksum tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "15f2b5fb00ccdf689e0149d1b1b3c03fead81c2b37735d812fa8bddbbf41b6d8"
"checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
"checksum term 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "edd106a334b7657c10b7c540a0106114feadeb4dc314513e97df481d5d966f42"
"checksum term_size 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9e5b9a66db815dcfd2da92db471106457082577c3c278d4138ab3e3b4e189327"
"checksum termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "96d6098003bde162e4277c70665bd87c326f5a0c3f3fbfb285787fa482d54e6e"
"checksum termios 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "72b620c5ea021d75a735c943269bb07d30c9b77d6ac6b236bc8b5c496ef05625"
"checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"

2
Cargo.toml
View file

@ -84,6 +84,8 @@ onig_sys = "=69.1.0"
heim = {git = "https://github.com/heim-rs/heim.git"}
which = "2.0.1"
battery = "0.7.4"
textwrap = {version = "0.11.0", features = ["term_size"]}
unicode-width = "0.1.5"
[dev-dependencies]
pretty_assertions = "0.6.1"

63
src/format/table.rs
View file

@ -4,6 +4,7 @@ use crate::prelude::*;
use ansi_term::Color;
use derive_new::new;
use prettytable::format::{FormatBuilder, LinePosition, LineSeparator};
use textwrap::fill;
use prettytable::{color, Attr, Cell, Row, Table};
@ -58,9 +59,71 @@ impl TableView {
entries.push(row);
}
let mut max_per_column = vec![];
if values.len() > 1 {
headers.insert(0, format!("#"));
}
for head in 0..headers.len() {
let mut current_row_max = 0;
for row in 0..values.len() {
if entries[row][head].len() > current_row_max {
current_row_max = entries[row][head].len();
}
}
max_per_column.push(current_row_max);
}
let termwidth = textwrap::termwidth() - 5;
// Make sure we have enough space for the columns we have
let max_num_of_columns = termwidth / 7;
// If we have too many columns, truncate the table
if max_num_of_columns < headers.len() {
headers.truncate(max_num_of_columns);
for row in 0..entries.len() {
entries[row].truncate(max_num_of_columns);
}
headers.push("...".to_string());
for row in 0..entries.len() {
entries[row].push("...".to_string());
}
}
// Measure how big our columns need to be
let max_naive_column_width = termwidth / headers.len();
let mut num_overages = 0;
let mut underage_sum = 0;
for idx in 0..headers.len() {
if max_per_column[idx] > max_naive_column_width {
num_overages += 1;
} else {
underage_sum += max_per_column[idx];
}
}
// Wrap cells as needed
for head in 0..headers.len() {
if max_per_column[head] > max_naive_column_width {
let max_column_width = (termwidth - underage_sum) / num_overages;
//Account for the separator
let max_column_width = if max_column_width > 1 {
max_column_width - 2
} else {
max_column_width
};
println!("{}", max_column_width);
headers[head] = fill(&headers[head], max_column_width);
for row in 0..entries.len() {
entries[row][head] = fill(&entries[row][head], max_column_width);
}
}
}
Some(TableView { headers, entries })
}
}