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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-07 05:48:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-07 05:48:48 +0000 |
commit | ef24de24a82fe681581cc130f342363c47c0969a (patch) | |
tree | 0d494f7e1a38b95c92426f58fe6eaa877303a86c /vendor/tabled/src/settings/rotate | |
parent | Releasing progress-linux version 1.74.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-ef24de24a82fe681581cc130f342363c47c0969a.tar.xz rustc-ef24de24a82fe681581cc130f342363c47c0969a.zip |
Merging upstream version 1.75.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/tabled/src/settings/rotate')
-rw-r--r-- | vendor/tabled/src/settings/rotate/mod.rs | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/vendor/tabled/src/settings/rotate/mod.rs b/vendor/tabled/src/settings/rotate/mod.rs new file mode 100644 index 000000000..426417190 --- /dev/null +++ b/vendor/tabled/src/settings/rotate/mod.rs @@ -0,0 +1,155 @@ +//! This module contains a [`Rotate`] primitive which can be used in order to rotate [`Table`]. +//! +//! It's also possible to transpose the table at the point of construction. +//! See [`Builder::index`]. +//! +//! # Example +//! +#![cfg_attr(feature = "std", doc = "```")] +#![cfg_attr(not(feature = "std"), doc = "```ignore")] +//! use tabled::{Table, settings::Rotate}; +//! +//! let data = [[1, 2, 3], [4, 5, 6]]; +//! +//! let table = Table::new(data).with(Rotate::Left).to_string(); +//! +//! assert_eq!( +//! table, +//! concat!( +//! "+---+---+---+\n", +//! "| 2 | 3 | 6 |\n", +//! "+---+---+---+\n", +//! "| 1 | 2 | 5 |\n", +//! "+---+---+---+\n", +//! "| 0 | 1 | 4 |\n", +//! "+---+---+---+", +//! ) +//! ); +//! ``` +//! +//! [`Table`]: crate::Table +//! [`Builder::index`]: crate::builder::Builder::index + +// use core::cmp::max; +use core::cmp::max; + +use crate::{ + grid::records::{ExactRecords, Records, Resizable}, + settings::TableOption, +}; + +/// Rotate can be used to rotate a table by 90 degrees. +#[derive(Debug)] +pub enum Rotate { + /// Rotate [`Table`] to the left. + /// + /// [`Table`]: crate::Table + Left, + /// Rotate [`Table`] to the right. + /// + /// [`Table`]: crate::Table + Right, + /// Rotate [`Table`] to the top. + /// + /// So the top becomes the bottom. + /// + /// [`Table`]: crate::Table + Top, + /// Rotate [`Table`] to the bottom. + /// + /// So the top becomes the bottom. + /// + /// [`Table`]: crate::Table + Bottom, +} + +impl<R, D, C> TableOption<R, D, C> for Rotate +where + R: Records + ExactRecords + Resizable, +{ + fn change(self, records: &mut R, _: &mut C, _: &mut D) { + let count_rows = records.count_rows(); + let count_cols = records.count_columns(); + + match self { + Self::Left => { + let size = max(count_rows, count_cols); + + { + for _ in count_rows..size { + records.push_row(); + } + + for _ in count_cols..size { + records.push_column(); + } + } + + for col in 0..size { + for row in col..size { + records.swap((col, row), (row, col)); + } + } + + for row in 0..count_cols / 2 { + records.swap_row(row, count_cols - row - 1); + } + + { + for (shift, row) in (count_rows..size).enumerate() { + let row = row - shift; + records.remove_column(row); + } + + for (shift, col) in (count_cols..size).enumerate() { + let col = col - shift; + records.remove_row(col); + } + } + } + Self::Right => { + let size = max(count_rows, count_cols); + + { + for _ in count_rows..size { + records.push_row(); + } + + for _ in count_cols..size { + records.push_column(); + } + } + + for col in 0..size { + for row in col..size { + records.swap((col, row), (row, col)); + } + } + + for col in 0..count_rows / 2 { + records.swap_column(col, count_rows - col - 1); + } + + { + for (shift, row) in (count_rows..size).enumerate() { + let row = row - shift; + records.remove_column(row); + } + + for (shift, col) in (count_cols..size).enumerate() { + let col = col - shift; + records.remove_row(col); + } + } + } + Self::Bottom | Self::Top => { + for row in 0..count_rows / 2 { + for col in 0..count_cols { + let last_row = count_rows - row - 1; + records.swap((last_row, col), (row, col)); + } + } + } + } + } +} |