cacao/examples/calculator/button_row.rs
2022-07-15 16:14:02 +02:00

80 lines
3 KiB
Rust

use cacao::button::Button;
use cacao::color::Color;
use cacao::layout::{Layout, LayoutConstraint};
use cacao::view::View;
use crate::calculator::Msg;
use crate::content_view::{button, BUTTON_HEIGHT, BUTTON_WIDTH};
pub struct ButtonRow {
pub view: View,
pub buttons: Vec<Button>
}
impl ButtonRow {
pub fn new(x: [Msg; 4], color: Color, action_color: Color) -> Self {
let view = View::new();
let buttons: Vec<Button> = x
.iter()
.map(|y| {
let button = button(
match y {
Msg::Clear => "C",
Msg::Add => "+",
Msg::Subtract => "-",
Msg::Multiply => "X",
Msg::Divide => "/",
Msg::Invert => "+/-",
Msg::Mod => "%",
Msg::Push(i) if *i == 1 => "1",
Msg::Push(i) if *i == 2 => "2",
Msg::Push(i) if *i == 3 => "3",
Msg::Push(i) if *i == 4 => "4",
Msg::Push(i) if *i == 5 => "5",
Msg::Push(i) if *i == 6 => "6",
Msg::Push(i) if *i == 7 => "7",
Msg::Push(i) if *i == 8 => "8",
Msg::Push(i) if *i == 9 => "9",
_ => "W"
},
y.clone()
);
view.add_subview(&button);
button
})
.collect();
buttons[0].set_background_color(color.clone());
buttons[1].set_background_color(color.clone());
buttons[2].set_background_color(color);
buttons[3].set_background_color(action_color);
let width = &buttons[0].width;
LayoutConstraint::activate(&[
buttons[0].top.constraint_equal_to(&view.top),
buttons[0].leading.constraint_equal_to(&view.leading),
buttons[0].bottom.constraint_equal_to(&view.bottom),
width.constraint_equal_to_constant(BUTTON_WIDTH),
buttons[1].top.constraint_equal_to(&view.top),
buttons[1].leading.constraint_equal_to(&buttons[0].trailing).offset(1.),
buttons[1].bottom.constraint_equal_to(&view.bottom),
buttons[1].width.constraint_equal_to(&width),
buttons[2].top.constraint_equal_to(&view.top),
buttons[2].leading.constraint_equal_to(&buttons[1].trailing).offset(1.),
buttons[2].bottom.constraint_equal_to(&view.bottom),
buttons[2].width.constraint_equal_to(&width),
buttons[3].top.constraint_equal_to(&view.top),
buttons[3].leading.constraint_equal_to(&buttons[2].trailing).offset(1.),
buttons[3].trailing.constraint_equal_to(&view.trailing),
buttons[3].bottom.constraint_equal_to(&view.bottom),
buttons[3].width.constraint_equal_to(&width),
view.height.constraint_equal_to_constant(BUTTON_HEIGHT)
]);
Self { view, buttons }
}
}