96 lines
2.7 KiB
Rust
96 lines
2.7 KiB
Rust
use crate::color::Color;
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use crate::draw::Font;
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use crate::{
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fonts::FontRef,
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widget::{DrawContext, DrawReport, KeyState, ModifiersState, WaitContext, Widget},
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};
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use chrono::{Datelike, NaiveDateTime};
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pub struct Date<'a> {
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cur_time: NaiveDateTime,
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date_cache: Font<'a>,
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size: f32,
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ch_width: u32,
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digit_width: u32,
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spacing_width: u32,
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}
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impl<'a> Date<'a> {
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pub fn new(time: NaiveDateTime, font: FontRef, size: f32) -> ::std::io::Result<Box<Date>> {
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let mut date_cache = Font::new(font, size);
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let chs = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
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let digits = "0123456789,/ ";
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let spacings = ",/ ";
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date_cache.add_str_to_cache(chs);
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date_cache.add_str_to_cache(digits);
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date_cache.add_str_to_cache(spacings);
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let ch_width = date_cache.auto_widest(chs)?;
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let digit_width = date_cache.auto_widest(digits)?;
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let spacing_width = date_cache.auto_widest(spacings)?;
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Ok(Box::new(Date {
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cur_time: time,
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date_cache,
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size,
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ch_width,
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digit_width,
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spacing_width,
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}))
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}
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}
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impl<'a> Widget for Date<'a> {
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fn wait(&mut self, _: &mut WaitContext) {}
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fn enter(&mut self) {}
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fn leave(&mut self) {}
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fn size(&self) -> (u32, u32) {
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(
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(3 * self.ch_width + 8 * self.digit_width + 4 * self.spacing_width) as u32,
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self.size.ceil() as u32,
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)
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}
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fn draw(
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&mut self,
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ctx: &mut DrawContext,
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pos: (u32, u32),
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_expansion: (u32, u32),
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) -> Result<DrawReport, ::std::io::Error> {
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let (width, height) = self.size();
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if !(ctx.time.date() != self.cur_time.date() || ctx.force) {
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return Ok(DrawReport::empty(width, height));
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}
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self.cur_time = ctx.time;
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let buf = &mut ctx.buf.subdimensions((pos.0, pos.1, width, height))?;
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buf.memset(ctx.bg);
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self.date_cache.draw_text(
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buf,
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ctx.bg,
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&Color::new(1.0, 1.0, 1.0, 1.0),
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&format!(
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"{:?}, {:02}/{:02}/{:4}",
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ctx.time.weekday(),
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ctx.time.day(),
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ctx.time.month(),
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ctx.time.year()
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),
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)?;
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Ok(DrawReport {
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width,
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height,
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damage: vec![(pos.0 as i32, pos.1 as i32, width as i32, height as i32)],
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full_damage: false,
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})
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}
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fn keyboard_input(&mut self, _: u32, _: ModifiersState, _: KeyState, _: Option<String>) {}
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fn mouse_click(&mut self, _: u32, _: (u32, u32)) {}
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fn mouse_scroll(&mut self, _: (f64, f64), _: (u32, u32)) {}
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}
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