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@ -1,7 +1,7 @@
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use tui::{
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backend::TestBackend,
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buffer::Buffer,
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layout::Rect,
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layout::{Constraint, Rect},
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style::{Color, Style},
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symbols,
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text::Spans,
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@ -198,3 +198,168 @@ fn widgets_list_should_repeat_highlight_symbol() {
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}
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terminal.backend().assert_buffer(&expected);
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}
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#[test]
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fn widgets_list_should_respect_padding() {
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let backend = TestBackend::new(10, 4);
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let mut terminal = Terminal::new(backend).unwrap();
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let mut state = ListState::default();
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state.select(Some(4));
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state.padding(None, Some(Constraint::Percentage(50)));
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terminal
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.draw(|f| {
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let size = f.size();
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let items = vec![
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ListItem::new("Item 0"),
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ListItem::new("Item 1"),
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ListItem::new("Item 2"),
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ListItem::new("Item 3"),
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ListItem::new("Item 4"),
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ListItem::new("Item 5"),
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ListItem::new("Item 6"),
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ListItem::new("Item 7"),
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];
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let list = List::new(items)
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.highlight_symbol(">> ")
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.repeat_highlight_symbol(true);
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f.render_stateful_widget(list, size, &mut state);
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})
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.unwrap();
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let expected = Buffer::with_lines(vec![" Item 3 ", ">> Item 4 ", " Item 5 ", " Item 6 "]);
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terminal.backend().assert_buffer(&expected);
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state.padding(
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Some(Constraint::Percentage(50)),
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Some(Constraint::Percentage(50)),
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);
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terminal
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.draw(|f| {
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let size = f.size();
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let items = vec![
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ListItem::new("Item 0"),
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ListItem::new("Item 1"),
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ListItem::new("Item 2"),
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ListItem::new("Item 3"),
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ListItem::new("Item 4"),
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ListItem::new("Item 5"),
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ListItem::new("Item 6"),
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ListItem::new("Item 7"),
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];
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let list = List::new(items)
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.highlight_symbol(">> ")
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.repeat_highlight_symbol(true);
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f.render_stateful_widget(list, size, &mut state);
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})
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.unwrap();
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let expected = Buffer::with_lines(vec![" Item 2 ", " Item 3 ", ">> Item 4 ", " Item 5 "]);
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terminal.backend().assert_buffer(&expected);
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state.padding(Some(Constraint::Max(1)), None);
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terminal
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.draw(|f| {
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let size = f.size();
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let items = vec![
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ListItem::new("Item 0"),
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ListItem::new("Item 1"),
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ListItem::new("Item 2"),
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ListItem::new("Item 3"),
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ListItem::new("Item 4"),
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ListItem::new("Item 5"),
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ListItem::new("Item 6"),
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ListItem::new("Item 7"),
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];
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let list = List::new(items)
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.highlight_symbol(">> ")
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.repeat_highlight_symbol(true);
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f.render_stateful_widget(list, size, &mut state);
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})
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.unwrap();
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let expected = Buffer::with_lines(vec![" Item 3 ", ">> Item 4 ", " Item 5 ", " Item 6 "]);
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terminal.backend().assert_buffer(&expected);
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//Prefers top padding to bottom padding
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state.padding(Some(Constraint::Length(3)), Some(Constraint::Length(3)));
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terminal
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.draw(|f| {
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let size = f.size();
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let items = vec![
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ListItem::new("Item 0"),
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ListItem::new("Item 1"),
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ListItem::new("Item 2"),
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ListItem::new("Item 3"),
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ListItem::new("Item 4"),
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ListItem::new("Item 5"),
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ListItem::new("Item 6"),
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ListItem::new("Item 7"),
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];
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let list = List::new(items)
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.highlight_symbol(">> ")
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.repeat_highlight_symbol(true);
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f.render_stateful_widget(list, size, &mut state);
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})
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.unwrap();
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let expected = Buffer::with_lines(vec![" Item 1 ", " Item 2 ", " Item 3 ", ">> Item 4 "]);
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terminal.backend().assert_buffer(&expected);
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}
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#[test]
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fn widgets_list_padding_doesnt_panic_for_offscreen_offset() {
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let backend = TestBackend::new(10, 1);
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let mut terminal = Terminal::new(backend).unwrap();
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let mut state = ListState::default();
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state.select(Some(7));
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state.padding(
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Some(Constraint::Length(0)),
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Some(Constraint::Percentage(100)),
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);
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terminal
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.draw(|f| {
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let size = f.size();
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let items = vec![
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ListItem::new("Item 0"),
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ListItem::new("Item 1"),
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ListItem::new("Item 2"),
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ListItem::new("Item 3"),
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ListItem::new("Item 4"),
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ListItem::new("Item 5"),
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ListItem::new("Item 6"),
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ListItem::new("Item 7"),
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];
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let list = List::new(items)
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.highlight_symbol(">> ")
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.repeat_highlight_symbol(true);
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f.render_stateful_widget(list, size, &mut state);
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})
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.unwrap();
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let expected = Buffer::with_lines(vec![">> Item 7 "]);
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terminal.backend().assert_buffer(&expected);
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// now the state.offset is set to 7
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// we set state.selected to 1
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// and we just check that it doesnt cause a panic in the padding code
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state.select(Some(1));
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terminal
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.draw(|f| {
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let size = f.size();
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let items = vec![
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ListItem::new("Item 0"),
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ListItem::new("Item 1"),
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ListItem::new("Item 2"),
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ListItem::new("Item 3"),
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ListItem::new("Item 4"),
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ListItem::new("Item 5"),
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ListItem::new("Item 6"),
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ListItem::new("Item 7"),
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];
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let list = List::new(items)
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.highlight_symbol(">> ")
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.repeat_highlight_symbol(true);
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f.render_stateful_widget(list, size, &mut state);
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})
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.unwrap();
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let expected = Buffer::with_lines(vec![">> Item 1 "]);
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terminal.backend().assert_buffer(&expected);
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}
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