showbits/showbits-thermal-printer/src/drawer/calendar.rs

100 lines
3.1 KiB
Rust

use jiff::civil;
use showbits_common::{
Node, Tree, WidgetExt,
color::{BLACK, WHITE},
widgets::{Block, Text},
};
use taffy::{
AlignContent, AlignItems, Display, FlexDirection,
style_helpers::{length, percent, repeat},
};
use crate::persistent_printer::PersistentPrinter;
use super::{Context, Drawing, FEED};
pub struct CalendarDrawing {
pub year: i16,
pub month: i8,
}
impl Drawing for CalendarDrawing {
fn draw(&self, printer: &mut PersistentPrinter, ctx: &mut Context) -> anyhow::Result<()> {
let mut date = civil::Date::new(self.year, self.month, 1)?;
let mut tree = Tree::<Context>::new(WHITE);
let mut grid = Node::empty()
.with_display(Display::Grid)
.with_grid_template_columns(vec![repeat(7, vec![length(50.0)])])
.with_grid_auto_rows(vec![length(50.0)])
.with_gap(length(2.0));
for weekday in ["Mo", "Di", "Mi", "Do", "Fr", "Sa", "So"] {
let text = Text::new()
.with_metrics(Text::default_metrics().scale(2.0))
.and_plain(weekday)
.widget(&mut ctx.font_stuff)
.node()
.with_justify_self(Some(AlignItems::Center))
.with_align_self(Some(AlignItems::Center))
.register(&mut tree)?;
grid = grid.and_child(text);
}
let placeholders = date.weekday().to_monday_zero_offset();
for _ in 0..placeholders {
let empty = Node::empty().register(&mut tree)?;
grid = grid.and_child(empty);
}
loop {
let day = Text::new()
.and_plain(date.day().to_string())
.widget(&mut ctx.font_stuff)
.node()
.register(&mut tree)?;
let block = Block::new()
.with_border(BLACK)
.node()
.with_border(length(2.0))
.with_display(Display::Flex)
.with_justify_content(Some(AlignContent::Center))
.with_align_items(Some(AlignItems::Center))
.and_child(day)
.register(&mut tree)?;
grid = grid.and_child(block);
let next_day = date.tomorrow()?;
if date.month() != next_day.month() {
break;
}
date = next_day;
}
let title = Text::new()
.and_plain(format!(
"Ankreuzkalender {:04}-{:02}",
self.year, self.month
))
.widget(&mut ctx.font_stuff)
.node()
.register(&mut tree)?;
let root = Node::empty()
.with_size_width(percent(1.0))
.with_padding_bottom(length(FEED))
.with_display(Display::Flex)
.with_flex_direction(FlexDirection::Column)
.with_align_items(Some(AlignItems::Center))
.and_child(title)
.and_child(grid.register(&mut tree)?)
.register(&mut tree)?;
printer.print_tree(&mut tree, ctx, root)?;
Ok(())
}
}