73 lines
2.1 KiB
Rust
73 lines
2.1 KiB
Rust
/*
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* Copyright (C) 2023 Valentin Lorentz
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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use enum_dispatch::enum_dispatch;
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use ratatui::prelude::*;
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use ratatui::widgets::Widget;
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mod bottom_aligned_paragraph;
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pub use bottom_aligned_paragraph::BottomAlignedParagraph;
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pub(crate) mod prerender;
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pub use prerender::Prerender;
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mod divider;
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pub use divider::Divider;
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#[rustfmt::skip] // reflow is vendored from ratatui, let's avoid changes
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mod reflow;
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/// A [`Widget`] that returns how many columns and lines it needs to draw everything
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/// (which is the number of lines it actually drew if it fits on screen)
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#[enum_dispatch]
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pub trait OverlappableWidget {
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/// Returns how many lines, from the bottom of the area, this widget would actually draw
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/// if rendered with the given width
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fn height(&self, width: u16) -> u64;
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/// Render the widget from the bottom, and return the width and height of the area
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/// actually drawn.
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fn render_overlap(self, area: Rect, buf: &mut Buffer) -> (u16, u16);
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}
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/// Enum of [`OverlappableWidget`] implementors
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#[enum_dispatch(OverlappableWidget)]
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pub enum BacklogItemWidget<'a> {
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Paragraph(BottomAlignedParagraph<'a>),
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Divider(Divider<'a>),
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Empty(EmptyWidget),
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}
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#[derive(Clone)]
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pub struct EmptyWidget;
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impl OverlappableWidget for EmptyWidget {
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fn height(&self, _width: u16) -> u64 {
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0
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}
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fn render_overlap(self, _area: Rect, _buf: &mut Buffer) -> (u16, u16) {
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(0, 0)
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}
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}
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/*
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impl<W: OverlappableWidget> Widget for W {
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fn render(self, area: Rect, buf: &mut Buffer) {
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self.render_overlap(area, buf);
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}
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}
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*/
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