use prototty::*;
use decorated::Decorated;
pub enum Alignment {
TopLeft,
Centre,
BottomRight,
}
pub struct Align {
pub size: Size,
pub x_alignment: Alignment,
pub y_alignment: Alignment,
}
impl Align {
pub fn new(size: Size, x_alignment: Alignment, y_alignment: Alignment) -> Self {
Self {
size,
x_alignment,
y_alignment,
}
}
}
impl<T, V: View<T> + ViewSize<T>> ViewSize<T> for Decorated<V, Align> {
fn size(&mut self, data: &T) -> Size {
let data_size = self.view.size(data);
let x = ::std::cmp::max(data_size.x(), self.decorator.size.x());
let y = ::std::cmp::max(data_size.y(), self.decorator.size.y());
Size::new(x, y)
}
}
impl<T, V: View<T> + ViewSize<T>> View<T> for Decorated<V, Align> {
fn view<G: ViewGrid>(&mut self, data: &T, offset: Coord, depth: i32, grid: &mut G) {
let data_size = self.view.size(data);
let x_offset = if self.decorator.size.x() > data_size.x() {
match self.decorator.x_alignment {
Alignment::TopLeft => 0,
Alignment::Centre => (self.decorator.size.x() - data_size.x()) / 2,
Alignment::BottomRight => self.decorator.size.x() - data_size.x(),
}
} else {
0
};
let y_offset = if self.decorator.size.y() > data_size.y() {
match self.decorator.y_alignment {
Alignment::TopLeft => 0,
Alignment::Centre => (self.decorator.size.y() - data_size.y()) / 2,
Alignment::BottomRight => self.decorator.size.y() - data_size.y(),
}
} else {
0
};
self.view.view(
data,
offset + Coord::new(x_offset as i32, y_offset as i32),
depth,
grid,
);
}
}