124 lines
3.6 KiB
Rust
124 lines
3.6 KiB
Rust
use sfml::{
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graphics::{Color, Drawable, Font, RectangleShape, Shape, Text, Transformable},
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system::Vector2f,
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};
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use crate::button::Button;
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pub struct Counter<'a> {
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count: u32,
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count_str: Text<'a>,
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background: RectangleShape<'a>,
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dec_button: Button<'a>,
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inc_button: Button<'a>,
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reset_button: Button<'a>,
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}
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impl<'a> Counter<'a> {
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pub fn new(count: u32, font: &'a Font) -> Self {
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let mut background = RectangleShape::with_size(Vector2f::new(200., 70.));
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background.set_fill_color(Color::YELLOW);
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background.set_outline_color(Color::BLUE);
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background.set_outline_thickness(10.);
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background.set_position((400., 300.));
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let bounds = background.local_bounds();
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background.set_origin((
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bounds.left + bounds.width / 2.,
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bounds.top + bounds.height / 2.,
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));
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let mut count_str = Text::new(&count.to_string(), font, 32);
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count_str.set_fill_color(Color::BLACK);
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count_str.set_position((400., 300.));
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let bounds = count_str.local_bounds();
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count_str.set_origin((
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bounds.left + bounds.width / 2.,
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bounds.top + bounds.height / 2.,
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));
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let dec_button = Button::new(
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"-".to_string(),
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font,
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Vector2f::new(
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background.position().x - 70.,
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background.position().y,
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),
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Box::new(|count| if count == 0 { 0 } else { count - 1 }),
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);
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let inc_button = Button::new(
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"+".to_string(),
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font,
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Vector2f::new(
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background.position().x + 70.,
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background.position().y,
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),
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Box::new(|count| if count == u32::MAX { 0 } else { count + 1 }),
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);
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let reset_button = Button::new(
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"R".to_string(),
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font,
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Vector2f::new(0., 0.),
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Box::new(|_count| 0),
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);
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Counter {
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count,
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count_str,
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background,
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dec_button,
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inc_button,
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reset_button,
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}
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}
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pub fn inc(&mut self) {
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self.count = (self.inc_button.exec)(self.count);
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self.update();
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}
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pub fn dec(&mut self) {
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self.count = (self.dec_button.exec)(self.count);
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self.update();
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}
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pub fn reset(&mut self) {
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self.count = (self.reset_button.exec)(self.count);
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self.update();
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}
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fn update(&mut self) {
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self.count_str.set_string(&self.count.to_string());
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let digits = self.count.checked_ilog10().unwrap_or(0);
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if self.count % (10 * if digits == 0 { 1 } else { digits }) == 0 {
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let bounds = self.count_str.local_bounds();
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self.count_str.set_origin((
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bounds.left + bounds.width / 2.,
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bounds.top + bounds.height / 2.,
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));
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}
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}
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pub fn handle_mouse(&mut self, x: i32, y: i32) {
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if self.dec_button.contains(x, y) {
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self.dec();
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}
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if self.inc_button.contains(x, y) {
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self.inc();
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}
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}
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}
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impl<'d> Drawable for Counter<'d> {
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fn draw<'a: 'shader, 'texture, 'shader, 'shader_texture>(
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&'a self,
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target: &mut dyn sfml::graphics::RenderTarget,
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states: &sfml::graphics::RenderStates<'texture, 'shader, 'shader_texture>,
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) {
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self.background.draw(target, states);
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self.count_str.draw(target, states);
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self.dec_button.draw(target, states);
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self.inc_button.draw(target, states);
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}
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}
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