/*
* meli - ui crate.
*
* Copyright 2017-2018 Manos Pitsidianakis
*
* This file is part of meli.
*
* meli is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* meli is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with meli. If not, see <http://www.gnu.org/licenses/>.
*/
/*! Various useful components that can be used in a generic fashion.
*/
use super::*;
mod widgets;
pub use self::widgets::*;
/// A horizontally split in half container.
#[derive(Debug)]
pub struct HSplit {
top: Box<Component>,
bottom: Box<Component>,
show_divider: bool,
ratio: usize, // bottom/whole height * 100
id: ComponentId,
}
impl fmt::Display for HSplit {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
// TODO display subject/info
Display::fmt(&self.top, f)
}
}
impl HSplit {
pub fn new(
top: Box<Component>,
bottom: Box<Component>,
ratio: usize,
show_divider: bool,
) -> Self {
HSplit {
top,
bottom,
show_divider,
ratio,
id: ComponentId::new_v4(),
}
}
}
impl Component for HSplit {
fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
if !is_valid_area!(area) {
return;
}
let upper_left = upper_left!(area);
let bottom_right = bottom_right!(area);
let total_rows = get_y(bottom_right) - get_y(upper_left);
let bottom_component_height = (self.ratio * total_rows) / 100;
let mid = get_y(upper_left) + total_rows - bottom_component_height;
if self.show_divider {
for i in get_x(upper_left)..=get_x(bottom_right) {
grid[(i, mid)].set_ch('─');
}
context
.dirty_areas
.push_back(((get_x(upper_left), mid), (get_x(bottom_right), mid)));
}
self.top.draw(
grid,
(
upper_left,
(get_x(bottom_right), get_y(upper_left) + mid - 1),
),
context,
);
self.bottom.draw(
grid,
((get_x