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use termion::event::Key;
use crate::coordinates::{Coordinates, Position, Size};
use crate::preview::Previewer;
use crate::widget::Widget;
use crate::hbox::HBox;
#[derive(PartialEq)]
pub struct MillerColumns<T> where T: Widget {
pub widgets: HBox<T>,
// pub left: Option<T>,
// pub main: Option<T>,
pub preview: Previewer,
pub ratio: (u16, u16, u16),
pub coordinates: Coordinates,
}
impl<T> MillerColumns<T>
where
T: Widget,
{
pub fn new() -> Self {
Self {
widgets: HBox::new(),
coordinates: Coordinates::new(),
ratio: (33, 33, 33),
preview: Previewer::new(),
}
}
pub fn push_widget(&mut self, widget: T) {
self.widgets.push_widget(widget);
self.refresh();
}
pub fn pop_widget(&mut self) -> Option<T> {
let widget = self.widgets.pop_widget();
self.refresh();
widget
}
pub fn prepend_widget(&mut self, widget: T) {
self.widgets.prepend_widget(widget);
}
pub fn calculate_coordinates(&self) -> (Coordinates, Coordinates, Coordinates) {
let xsize = self.coordinates.xsize();
let ysize = self.coordinates.ysize();
let top = self.coordinates.top().y();
let ratio = self.ratio;
let left_xsize = xsize * ratio.0 / 100;
let left_size = Size((left_xsize, ysize));
let left_pos = self.coordinates.top();
let main_xsize = xsize * ratio.1 / 100;
let main_size = Size((main_xsize, ysize));
let main_pos = Position((left_xsize + 2, top));
let preview_xsize = xsize * ratio.2 / 100;
let preview_size = Size((preview_xsize, ysize));
let preview_pos = Position((left_xsize + main_xsize + 3, top));
let left_coords = Coordinates {
size: left_size,
position: left_pos,
};
let main_coords = Coordinates {
size: main_size,
position: main_pos,
};
let preview_coords = Coordinates {
size: preview_size,
position: preview_pos,
};
(left_coords, main_coords, preview_coords)
}
pub fn get_left_widget(&self) -> Option<&T> {
let len = self.widgets.widgets.len();
if len < 2 {
return None;
}
self.widgets.widgets.get(len - 2)
}
pub fn get_left_widget_mut(&mut self) -> Option<&mut T> {
let len = self.widgets.widgets.len();
if len < 2 {
return None;
}
self.widgets.widgets.get(len - 2)?.get_position();
self.widgets.widgets.get_mut(len - 2)
}
pub fn get_main_widget(&self) -> &T {
self.widgets.widgets.last().unwrap()
}
pub fn get_main_widget_mut(&mut self) -> &mut T {
self.widgets.widgets.last_mut().unwrap()
}
}
impl<T> Widget for MillerColumns<T>
where
T: Widget,
{
fn get_size(&self) -> &Size {
&self.coordinates.size
}
fn get_position(&self) -> &Position {
&self.coordinates.position
}
fn set_size(&mut self, size: Size) {
self.coordinates.size = size;
}
fn set_position(&mut self, position: Position) {
self.coordinates.position = position;
}
fn get_coordinates(&self) -> &Coordinates {
&self.coordinates
}
fn set_coordinates(&mut self, coordinates: &Coordinates) {
if self.coordinates == *coordinates {
return;
}
self.coordinates = coordinates.clone();
self.refresh();
}
fn render_header(&self) -> String {
"".to_string()
}
fn refresh(&mut self) {
let (left_coords, main_coords, preview_coords) = self.calculate_coordinates();
if let Some(left_widget) = self.get_left_widget_mut() {
left_widget.set_coordinates(&left_coords);
}
if let Some(main_widget) = self.widgets.widgets.last_mut() {
main_widget.set_coordinates(&main_coords);
}
let preview_widget = &mut self.preview;
preview_widget.set_coordinates(&preview_coords);
}
fn get_drawlist(&self) -> String {
let left_widget = match self.get_left_widget() {
Some(widget) => widget.get_drawlist(),
None => "".into(),
};
let main_widget = self.get_main_widget().get_drawlist();
let preview = self.preview.get_drawlist();
format!("{}{}{}", main_widget, left_widget, preview)
}
fn on_key(&mut self, key: Key) {
self.get_main_widget_mut().on_key(key);
}
}
|
