35606a3daa
We only rely on some of the rendering primitives and implement our Cursive-style compositor on top.
717 lines
28 KiB
Rust
717 lines
28 KiB
Rust
use helix_tui::{
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backend::TestBackend,
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buffer::Buffer,
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layout::Constraint,
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style::{Color, Modifier, Style},
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text::{Span, Spans},
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widgets::{Block, Borders, Cell, Row, Table, TableState},
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Terminal,
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};
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#[test]
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fn widgets_table_column_spacing_can_be_changed() {
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let test_case = |column_spacing, expected| {
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let backend = TestBackend::new(30, 10);
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let mut terminal = Terminal::new(backend).unwrap();
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terminal
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.draw(|f| {
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let size = f.size();
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let table = Table::new(vec![
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Row::new(vec!["Row11", "Row12", "Row13"]),
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Row::new(vec!["Row21", "Row22", "Row23"]),
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Row::new(vec!["Row31", "Row32", "Row33"]),
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Row::new(vec!["Row41", "Row42", "Row43"]),
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])
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.header(Row::new(vec!["Head1", "Head2", "Head3"]).bottom_margin(1))
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.block(Block::default().borders(Borders::ALL))
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.widths(&[
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Constraint::Length(5),
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Constraint::Length(5),
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Constraint::Length(5),
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])
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.column_spacing(column_spacing);
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f.render_widget(table, size);
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})
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.unwrap();
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terminal.backend().assert_buffer(&expected);
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};
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// no space between columns
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test_case(
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0,
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│Head1Head2Head3 │",
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"│ │",
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"│Row11Row12Row13 │",
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"│Row21Row22Row23 │",
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"│Row31Row32Row33 │",
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"│Row41Row42Row43 │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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// one space between columns
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test_case(
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1,
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│Head1 Head2 Head3 │",
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"│ │",
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"│Row11 Row12 Row13 │",
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"│Row21 Row22 Row23 │",
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"│Row31 Row32 Row33 │",
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"│Row41 Row42 Row43 │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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// enough space to just not hide the third column
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test_case(
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6,
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│Head1 Head2 Head3 │",
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"│ │",
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"│Row11 Row12 Row13 │",
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"│Row21 Row22 Row23 │",
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"│Row31 Row32 Row33 │",
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"│Row41 Row42 Row43 │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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// enough space to hide part of the third column
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test_case(
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7,
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│Head1 Head2 Head│",
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"│ │",
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"│Row11 Row12 Row1│",
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"│Row21 Row22 Row2│",
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"│Row31 Row32 Row3│",
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"│Row41 Row42 Row4│",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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}
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#[test]
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fn widgets_table_columns_widths_can_use_fixed_length_constraints() {
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let test_case = |widths, expected| {
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let backend = TestBackend::new(30, 10);
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let mut terminal = Terminal::new(backend).unwrap();
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terminal
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.draw(|f| {
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let size = f.size();
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let table = Table::new(vec![
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Row::new(vec!["Row11", "Row12", "Row13"]),
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Row::new(vec!["Row21", "Row22", "Row23"]),
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Row::new(vec!["Row31", "Row32", "Row33"]),
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Row::new(vec!["Row41", "Row42", "Row43"]),
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])
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.header(Row::new(vec!["Head1", "Head2", "Head3"]).bottom_margin(1))
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.block(Block::default().borders(Borders::ALL))
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.widths(widths);
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f.render_widget(table, size);
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})
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.unwrap();
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terminal.backend().assert_buffer(&expected);
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};
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// columns of zero width show nothing
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test_case(
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&[
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Constraint::Length(0),
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Constraint::Length(0),
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Constraint::Length(0),
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],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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// columns of 1 width trim
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test_case(
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&[
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Constraint::Length(1),
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Constraint::Length(1),
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Constraint::Length(1),
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],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│H H H │",
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"│ │",
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"│R R R │",
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"│R R R │",
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"│R R R │",
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"│R R R │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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// columns of large width just before pushing a column off
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test_case(
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&[
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Constraint::Length(8),
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Constraint::Length(8),
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Constraint::Length(8),
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],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│Head1 Head2 Head3 │",
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"│ │",
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"│Row11 Row12 Row13 │",
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"│Row21 Row22 Row23 │",
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"│Row31 Row32 Row33 │",
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"│Row41 Row42 Row43 │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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}
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#[test]
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fn widgets_table_columns_widths_can_use_percentage_constraints() {
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let test_case = |widths, expected| {
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let backend = TestBackend::new(30, 10);
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let mut terminal = Terminal::new(backend).unwrap();
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terminal
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.draw(|f| {
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let size = f.size();
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let table = Table::new(vec![
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Row::new(vec!["Row11", "Row12", "Row13"]),
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Row::new(vec!["Row21", "Row22", "Row23"]),
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Row::new(vec!["Row31", "Row32", "Row33"]),
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Row::new(vec!["Row41", "Row42", "Row43"]),
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])
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.header(Row::new(vec!["Head1", "Head2", "Head3"]).bottom_margin(1))
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.block(Block::default().borders(Borders::ALL))
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.widths(widths)
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.column_spacing(0);
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f.render_widget(table, size);
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})
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.unwrap();
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terminal.backend().assert_buffer(&expected);
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};
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// columns of zero width show nothing
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test_case(
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&[
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Constraint::Percentage(0),
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Constraint::Percentage(0),
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Constraint::Percentage(0),
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],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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// columns of not enough width trims the data
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test_case(
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&[
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Constraint::Percentage(11),
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Constraint::Percentage(11),
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Constraint::Percentage(11),
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],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│HeaHeaHea │",
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"│ │",
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"│RowRowRow │",
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"│RowRowRow │",
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"│RowRowRow │",
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"│RowRowRow │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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// columns of large width just before pushing a column off
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test_case(
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&[
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Constraint::Percentage(33),
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Constraint::Percentage(33),
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Constraint::Percentage(33),
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],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│Head1 Head2 Head3 │",
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"│ │",
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"│Row11 Row12 Row13 │",
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"│Row21 Row22 Row23 │",
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"│Row31 Row32 Row33 │",
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"│Row41 Row42 Row43 │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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// percentages summing to 100 should give equal widths
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test_case(
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&[Constraint::Percentage(50), Constraint::Percentage(50)],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│Head1 Head2 │",
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"│ │",
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"│Row11 Row12 │",
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"│Row21 Row22 │",
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"│Row31 Row32 │",
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"│Row41 Row42 │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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}
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#[test]
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fn widgets_table_columns_widths_can_use_mixed_constraints() {
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let test_case = |widths, expected| {
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let backend = TestBackend::new(30, 10);
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let mut terminal = Terminal::new(backend).unwrap();
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terminal
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.draw(|f| {
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let size = f.size();
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let table = Table::new(vec![
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Row::new(vec!["Row11", "Row12", "Row13"]),
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Row::new(vec!["Row21", "Row22", "Row23"]),
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Row::new(vec!["Row31", "Row32", "Row33"]),
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Row::new(vec!["Row41", "Row42", "Row43"]),
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])
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.header(Row::new(vec!["Head1", "Head2", "Head3"]).bottom_margin(1))
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.block(Block::default().borders(Borders::ALL))
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.widths(widths);
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f.render_widget(table, size);
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})
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.unwrap();
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terminal.backend().assert_buffer(&expected);
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};
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// columns of zero width show nothing
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test_case(
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&[
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Constraint::Percentage(0),
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Constraint::Length(0),
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Constraint::Percentage(0),
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],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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// columns of not enough width trims the data
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test_case(
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&[
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Constraint::Percentage(11),
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Constraint::Length(20),
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Constraint::Percentage(11),
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],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│Hea Head2 Hea│",
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"│ │",
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"│Row Row12 Row│",
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"│Row Row22 Row│",
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"│Row Row32 Row│",
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"│Row Row42 Row│",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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// columns of large width just before pushing a column off
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test_case(
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&[
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Constraint::Percentage(33),
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Constraint::Length(10),
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Constraint::Percentage(33),
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],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│Head1 Head2 Head3 │",
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"│ │",
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"│Row11 Row12 Row13 │",
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"│Row21 Row22 Row23 │",
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"│Row31 Row32 Row33 │",
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"│Row41 Row42 Row43 │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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// columns of large size (>100% total) hide the last column
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test_case(
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&[
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Constraint::Percentage(60),
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Constraint::Length(10),
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Constraint::Percentage(60),
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],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│Head1 Head2 │",
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"│ │",
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"│Row11 Row12 │",
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"│Row21 Row22 │",
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"│Row31 Row32 │",
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"│Row41 Row42 │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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}
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#[test]
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fn widgets_table_columns_widths_can_use_ratio_constraints() {
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let test_case = |widths, expected| {
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let backend = TestBackend::new(30, 10);
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let mut terminal = Terminal::new(backend).unwrap();
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terminal
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.draw(|f| {
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let size = f.size();
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let table = Table::new(vec![
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Row::new(vec!["Row11", "Row12", "Row13"]),
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Row::new(vec!["Row21", "Row22", "Row23"]),
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Row::new(vec!["Row31", "Row32", "Row33"]),
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Row::new(vec!["Row41", "Row42", "Row43"]),
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])
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.header(Row::new(vec!["Head1", "Head2", "Head3"]).bottom_margin(1))
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.block(Block::default().borders(Borders::ALL))
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.widths(widths)
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.column_spacing(0);
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f.render_widget(table, size);
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})
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.unwrap();
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terminal.backend().assert_buffer(&expected);
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};
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// columns of zero width show nothing
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test_case(
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&[
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Constraint::Ratio(0, 1),
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Constraint::Ratio(0, 1),
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Constraint::Ratio(0, 1),
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],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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// columns of not enough width trims the data
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test_case(
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&[
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Constraint::Ratio(1, 9),
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Constraint::Ratio(1, 9),
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Constraint::Ratio(1, 9),
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],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│HeaHeaHea │",
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"│ │",
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"│RowRowRow │",
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"│RowRowRow │",
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"│RowRowRow │",
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"│RowRowRow │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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// columns of large width just before pushing a column off
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test_case(
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&[
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Constraint::Ratio(1, 3),
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Constraint::Ratio(1, 3),
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Constraint::Ratio(1, 3),
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],
|
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
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"│Head1 Head2 Head3 │",
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"│ │",
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"│Row11 Row12 Row13 │",
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"│Row21 Row22 Row23 │",
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"│Row31 Row32 Row33 │",
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"│Row41 Row42 Row43 │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
|
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// percentages summing to 100 should give equal widths
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test_case(
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&[Constraint::Ratio(1, 2), Constraint::Ratio(1, 2)],
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Buffer::with_lines(vec![
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"┌────────────────────────────┐",
|
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"│Head1 Head2 │",
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"│ │",
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"│Row11 Row12 │",
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"│Row21 Row22 │",
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"│Row31 Row32 │",
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"│Row41 Row42 │",
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"│ │",
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"│ │",
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"└────────────────────────────┘",
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]),
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);
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}
|
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|
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#[test]
|
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fn widgets_table_can_have_rows_with_multi_lines() {
|
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let test_case = |state: &mut TableState, expected: Buffer| {
|
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let backend = TestBackend::new(30, 8);
|
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let mut terminal = Terminal::new(backend).unwrap();
|
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terminal
|
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.draw(|f| {
|
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let size = f.size();
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let table = Table::new(vec![
|
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Row::new(vec!["Row11", "Row12", "Row13"]),
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Row::new(vec!["Row21", "Row22", "Row23"]).height(2),
|
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Row::new(vec!["Row31", "Row32", "Row33"]),
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Row::new(vec!["Row41", "Row42", "Row43"]).height(2),
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])
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.header(Row::new(vec!["Head1", "Head2", "Head3"]).bottom_margin(1))
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.block(Block::default().borders(Borders::ALL))
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.highlight_symbol(">> ")
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.widths(&[
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Constraint::Length(5),
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Constraint::Length(5),
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Constraint::Length(5),
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])
|
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.column_spacing(1);
|
|
f.render_stateful_widget(table, size, state);
|
|
})
|
|
.unwrap();
|
|
terminal.backend().assert_buffer(&expected);
|
|
};
|
|
|
|
let mut state = TableState::default();
|
|
// no selection
|
|
test_case(
|
|
&mut state,
|
|
Buffer::with_lines(vec![
|
|
"┌────────────────────────────┐",
|
|
"│Head1 Head2 Head3 │",
|
|
"│ │",
|
|
"│Row11 Row12 Row13 │",
|
|
"│Row21 Row22 Row23 │",
|
|
"│ │",
|
|
"│Row31 Row32 Row33 │",
|
|
"└────────────────────────────┘",
|
|
]),
|
|
);
|
|
|
|
// select first
|
|
state.select(Some(0));
|
|
test_case(
|
|
&mut state,
|
|
Buffer::with_lines(vec![
|
|
"┌────────────────────────────┐",
|
|
"│ Head1 Head2 Head3 │",
|
|
"│ │",
|
|
"│>> Row11 Row12 Row13 │",
|
|
"│ Row21 Row22 Row23 │",
|
|
"│ │",
|
|
"│ Row31 Row32 Row33 │",
|
|
"└────────────────────────────┘",
|
|
]),
|
|
);
|
|
|
|
// select second (we don't show partially the 4th row)
|
|
state.select(Some(1));
|
|
test_case(
|
|
&mut state,
|
|
Buffer::with_lines(vec![
|
|
"┌────────────────────────────┐",
|
|
"│ Head1 Head2 Head3 │",
|
|
"│ │",
|
|
"│ Row11 Row12 Row13 │",
|
|
"│>> Row21 Row22 Row23 │",
|
|
"│ │",
|
|
"│ Row31 Row32 Row33 │",
|
|
"└────────────────────────────┘",
|
|
]),
|
|
);
|
|
|
|
// select 4th (we don't show partially the 1st row)
|
|
state.select(Some(3));
|
|
test_case(
|
|
&mut state,
|
|
Buffer::with_lines(vec![
|
|
"┌────────────────────────────┐",
|
|
"│ Head1 Head2 Head3 │",
|
|
"│ │",
|
|
"│ Row31 Row32 Row33 │",
|
|
"│>> Row41 Row42 Row43 │",
|
|
"│ │",
|
|
"│ │",
|
|
"└────────────────────────────┘",
|
|
]),
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn widgets_table_can_have_elements_styled_individually() {
|
|
let backend = TestBackend::new(30, 4);
|
|
let mut terminal = Terminal::new(backend).unwrap();
|
|
let mut state = TableState::default();
|
|
state.select(Some(0));
|
|
terminal
|
|
.draw(|f| {
|
|
let size = f.size();
|
|
let table = Table::new(vec![
|
|
Row::new(vec!["Row11", "Row12", "Row13"]).style(Style::default().fg(Color::Green)),
|
|
Row::new(vec![
|
|
Cell::from("Row21"),
|
|
Cell::from("Row22").style(Style::default().fg(Color::Yellow)),
|
|
Cell::from(Spans::from(vec![
|
|
Span::raw("Row"),
|
|
Span::styled("23", Style::default().fg(Color::Blue)),
|
|
]))
|
|
.style(Style::default().fg(Color::Red)),
|
|
])
|
|
.style(Style::default().fg(Color::LightGreen)),
|
|
])
|
|
.header(Row::new(vec!["Head1", "Head2", "Head3"]).bottom_margin(1))
|
|
.block(Block::default().borders(Borders::LEFT | Borders::RIGHT))
|
|
.highlight_symbol(">> ")
|
|
.highlight_style(Style::default().add_modifier(Modifier::BOLD))
|
|
.widths(&[
|
|
Constraint::Length(6),
|
|
Constraint::Length(6),
|
|
Constraint::Length(6),
|
|
])
|
|
.column_spacing(1);
|
|
f.render_stateful_widget(table, size, &mut state);
|
|
})
|
|
.unwrap();
|
|
|
|
let mut expected = Buffer::with_lines(vec![
|
|
"│ Head1 Head2 Head3 │",
|
|
"│ │",
|
|
"│>> Row11 Row12 Row13 │",
|
|
"│ Row21 Row22 Row23 │",
|
|
]);
|
|
// First row = row color + highlight style
|
|
for col in 1..=28 {
|
|
expected.get_mut(col, 2).set_style(
|
|
Style::default()
|
|
.fg(Color::Green)
|
|
.add_modifier(Modifier::BOLD),
|
|
);
|
|
}
|
|
// Second row:
|
|
// 1. row color
|
|
for col in 1..=28 {
|
|
expected
|
|
.get_mut(col, 3)
|
|
.set_style(Style::default().fg(Color::LightGreen));
|
|
}
|
|
// 2. cell color
|
|
for col in 11..=16 {
|
|
expected
|
|
.get_mut(col, 3)
|
|
.set_style(Style::default().fg(Color::Yellow));
|
|
}
|
|
for col in 18..=23 {
|
|
expected
|
|
.get_mut(col, 3)
|
|
.set_style(Style::default().fg(Color::Red));
|
|
}
|
|
// 3. text color
|
|
for col in 21..=22 {
|
|
expected
|
|
.get_mut(col, 3)
|
|
.set_style(Style::default().fg(Color::Blue));
|
|
}
|
|
terminal.backend().assert_buffer(&expected);
|
|
}
|
|
|
|
#[test]
|
|
fn widgets_table_should_render_even_if_empty() {
|
|
let backend = TestBackend::new(30, 4);
|
|
let mut terminal = Terminal::new(backend).unwrap();
|
|
terminal
|
|
.draw(|f| {
|
|
let size = f.size();
|
|
let table = Table::new(vec![])
|
|
.header(Row::new(vec!["Head1", "Head2", "Head3"]))
|
|
.block(Block::default().borders(Borders::LEFT | Borders::RIGHT))
|
|
.widths(&[
|
|
Constraint::Length(6),
|
|
Constraint::Length(6),
|
|
Constraint::Length(6),
|
|
])
|
|
.column_spacing(1);
|
|
f.render_widget(table, size);
|
|
})
|
|
.unwrap();
|
|
|
|
let expected = Buffer::with_lines(vec![
|
|
"│Head1 Head2 Head3 │",
|
|
"│ │",
|
|
"│ │",
|
|
"│ │",
|
|
]);
|
|
|
|
terminal.backend().assert_buffer(&expected);
|
|
}
|