793 lines
25 KiB
Rust
793 lines
25 KiB
Rust
extern crate smithay_client_toolkit as sctk;
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use std::fmt;
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use std::fs;
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use calloop::{timer::Timer, EventLoop};
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use chrono::prelude::{Local, Utc};
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use chrono::TimeZone;
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use chrono::Timelike;
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use sctk::reexports::client::protocol::{wl_shm, wl_surface};
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use sctk::shm::AutoMemPool;
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use sctk::window::{Event as WEvent, FallbackFrame};
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use serde::Deserialize;
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use svg::node::element::path::Data as PathData;
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use svg::node::element::{
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Circle, Definitions, Group, Line, Path, Rectangle, Style, Text, TextPath,
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};
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use svg::node::Text as TextNode;
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use svg::Document;
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sctk::default_environment!(SeasonalClock, desktop);
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const HOUR_NAMES: [&str; 24] = [
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"Candle", "Ice", "Comet", "Thimble", "Root", "Mist", "Sprout", "Rainbow", "Worm", "Bud",
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"Blossom", "Ladybug", "Geese", "Dust", "Peach", "Fog", "Acorn", "Gourd", "Soup", "Crow",
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"Mushroom", "Thunder", "Frost", "Lantern",
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];
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const IMAGE_WIDTH: u32 = 700;
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const HOUR_NAME_FONT_SIZE: f32 = IMAGE_WIDTH as f32 * 0.019109;
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const OUTER_R: f32 = (IMAGE_WIDTH as f32) / 2.0 - 3.0 * HOUR_NAME_FONT_SIZE;
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enum Season {
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Spring,
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Summer,
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Autumn,
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Winter,
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}
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impl fmt::Display for Season {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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write!(
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f,
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"{}",
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match self {
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Season::Spring => "spring",
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Season::Summer => "summer",
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Season::Autumn => "autumn",
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Season::Winter => "winter",
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}
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)
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}
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}
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#[derive(Deserialize, Copy, Clone)]
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struct Config {
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latitude: f64,
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longitude: f64,
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}
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#[derive(Deserialize)]
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#[serde(rename_all = "kebab-case")]
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struct CompleteConfig {
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seasonal_clock: Config,
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}
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fn seconds_to_degrees(seconds: i32) -> f32 {
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seconds as f32 * 360.0 / 86400.0
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}
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fn time_to_degrees(timestamp: i32, // should be time/timestamp
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) -> f32 {
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seconds_to_degrees(timestamp)
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}
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fn hour_name_path(ring_width: f32) -> Path {
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let radius = OUTER_R - ring_width / 2.0;
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let delta_x = radius * (15.0_f32.to_radians() / 2.0).sin();
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let delta_y = radius * (1.0 - (15.0_f32.to_radians() / 2.0).cos());
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let x1 = (IMAGE_WIDTH as f32) / 2.0 - delta_x;
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let y1 = ((IMAGE_WIDTH as f32) / 2.0 - radius) + delta_y;
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let path_data = PathData::new().move_to((x1, y1)).elliptical_arc_by((
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radius,
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radius,
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15,
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0,
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1,
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2.0 * delta_x,
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0,
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));
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Path::new().set("id", "hour-name-path").set("d", path_data)
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}
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fn hour_marker(
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hour: i32,
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is_current_hour: bool,
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ring_width: f32,
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utc_hour_font_size: f32,
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) -> Group {
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let season = match hour {
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0..=5 => Season::Winter,
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6..=11 => Season::Spring,
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12..=17 => Season::Summer,
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18..=23 => Season::Autumn,
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_ => panic!("Hour out of range"),
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};
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let rotation = hour * 15;
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let delta_x = OUTER_R * (15f32.to_radians() / 2.0).sin();
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let delta_y = OUTER_R * (1.0 - (15f32.to_radians() / 2.0).cos());
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let s_delta_x = 0.0 - ring_width * (15f32.to_radians() / 2.0).sin();
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let s_delta_y = ring_width * (15f32.to_radians() / 2.0).cos();
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let i_delta_x = -2.0 * (OUTER_R - ring_width) * (15f32.to_radians() / 2.0).sin();
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let x1 = IMAGE_WIDTH as f32 / 2.0 - delta_x;
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let y1 = (IMAGE_WIDTH as f32 / 2.0 - OUTER_R) + delta_y;
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let utc_hour_y = IMAGE_WIDTH as f32 / 2.0 - OUTER_R + ring_width + utc_hour_font_size;
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let path_data = PathData::new()
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.move_to((x1, y1))
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.elliptical_arc_by((OUTER_R, OUTER_R, 15, 0, 1, 2.0 * delta_x, 0))
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.line_by((s_delta_x, s_delta_y))
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.elliptical_arc_by((
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OUTER_R - ring_width,
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OUTER_R - ring_width,
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15,
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0,
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0,
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i_delta_x,
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0,
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))
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.close();
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let path = Path::new().set("d", path_data);
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let hour_name_text_path = TextPath::new()
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.set("xlink:href", "#hour-name-path")
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.set("startOffset", "50%")
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.add(TextNode::new(HOUR_NAMES[hour as usize]));
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let hour_name_text = Text::new()
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.set("text-anchor", "middle")
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.set("dominant-baseline", "mathematical")
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.set("font-size", HOUR_NAME_FONT_SIZE)
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.add(hour_name_text_path);
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let utc_hour_text = Text::new()
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.set("class", "utc")
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.set(
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"transform",
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format!("rotate(-7.5, {}, {})", IMAGE_WIDTH / 2, IMAGE_WIDTH / 2),
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)
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.set("x", IMAGE_WIDTH / 2)
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.set("y", utc_hour_y)
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.set("text-anchor", "middle")
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.set("dominant-baseline", "mathematical")
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.set("font-size", utc_hour_font_size)
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.add(TextNode::new(format!("U {:02}", hour)));
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Group::new()
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.set(
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"class",
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format!(
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"hour {season}{}",
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if is_current_hour { " active" } else { "" }
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),
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)
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.set(
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"transform",
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format!(
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"rotate({}, {}, {})",
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rotation as f32 - 172.5,
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IMAGE_WIDTH / 2,
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IMAGE_WIDTH / 2
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),
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)
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.add(path)
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.add(hour_name_text)
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.add(utc_hour_text)
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}
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fn get_range_path(radius: f32, range_name: &str, start_time: i32, end_time: i32) -> Path {
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let start_deg = time_to_degrees(start_time);
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let end_deg = time_to_degrees(end_time);
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let deg_diff = end_deg - start_deg;
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let start_delta_x = radius * start_deg.to_radians().sin();
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let start_delta_y = radius * (1.0 - start_deg.to_radians().cos());
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let end_delta_x = radius * end_deg.to_radians().sin();
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let end_delta_y = radius * (1.0 - end_deg.to_radians().cos());
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let path_data = PathData::new()
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.move_to((IMAGE_WIDTH / 2, IMAGE_WIDTH / 2))
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.line_to((
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IMAGE_WIDTH as f32 / 2.0 - start_delta_x,
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IMAGE_WIDTH as f32 / 2.0 + radius - start_delta_y,
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))
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.elliptical_arc_to((
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radius,
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radius,
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deg_diff,
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((start_deg < end_deg) ^ (deg_diff.abs() >= 180.0)) as u8,
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0,
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IMAGE_WIDTH as f32 / 2.0 - end_delta_x,
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IMAGE_WIDTH as f32 / 2.0 + radius - end_delta_y,
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))
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.close();
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Path::new().set("class", range_name).set("d", path_data)
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}
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fn get_moon_path(radius: f32, moon_phase: f64) -> Path {
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let handle_x_pos = radius as f64 * 1.34;
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let handle_y_pos = radius * 0.88;
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let min_x = IMAGE_WIDTH as f64 / 2.0 - handle_x_pos;
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let max_x = min_x + 2.0 * handle_x_pos;
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let top_y = IMAGE_WIDTH as f32 / 2.0 - handle_y_pos;
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let bottom_y = IMAGE_WIDTH as f32 / 2.0 + handle_y_pos;
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let h1_x: f64;
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let h2_x: f64;
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if moon_phase < 14.0 {
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h1_x = min_x + 2.0 * handle_x_pos * (1.0 - moon_phase / 14.0);
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h2_x = max_x;
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} else {
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h1_x = min_x;
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h2_x = max_x + 2.0 * handle_x_pos * (1.0 - moon_phase / 14.0)
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}
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let path_data = PathData::new()
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.move_to((IMAGE_WIDTH as f32 / 2.0, IMAGE_WIDTH as f32 / 2.0 - radius))
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.cubic_curve_to((
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h1_x,
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top_y,
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h1_x,
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bottom_y,
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IMAGE_WIDTH as f32 / 2.0,
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IMAGE_WIDTH as f32 / 2.0 + radius,
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))
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.cubic_curve_to((
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h2_x,
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bottom_y,
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h2_x,
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top_y,
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IMAGE_WIDTH / 2,
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IMAGE_WIDTH as f32 / 2.0 - radius,
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));
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Path::new().set("class", "moon").set("d", path_data)
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}
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fn gen_svg(config: &Option<Config>) -> Document {
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let local_timestamp = Local::now();
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let utc_hour = local_timestamp.with_timezone(&Utc).time().hour();
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let local_hour = local_timestamp.time().hour();
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let local_minute = local_timestamp.time().minute();
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let local_second = local_timestamp.time().second();
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let utc_offset = local_timestamp.offset().local_minus_utc();
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let local_time = local_timestamp.time().num_seconds_from_midnight() as i32;
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let utc_rotation = seconds_to_degrees(utc_offset);
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// Calculate the Moon phase
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let unixtime = suncalc::Timestamp(local_timestamp.timestamp_millis());
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let moon_illumination = suncalc::moon_illumination(unixtime);
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let moon_radius = IMAGE_WIDTH as f32 * 0.071428571;
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let moon_phase = moon_illumination.phase * 28.0;
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let local_hour_font_size = IMAGE_WIDTH as f32 * 0.02357;
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let utc_hour_font_size = IMAGE_WIDTH as f32 * 0.021462;
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let ring_width = HOUR_NAME_FONT_SIZE * 3.0;
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let sun_radius = IMAGE_WIDTH as f32 * 0.0142871;
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let marker_radius = OUTER_R - ring_width - 2.0 * utc_hour_font_size;
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let border = Rectangle::new()
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.set("x", 0i32)
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.set("y", 0i32)
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.set("width", 700i32)
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.set("height", 700i32)
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.set("id", "border");
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let stylesheet = Style::new(
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"\
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#border {stroke: none; fill: rgb(19, 17, 30); }
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.hour path {stroke: rgb(0, 0, 0); stroke-width: 2px;}
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.hour text {stroke: none; fill: rgb(238, 187, 85);}
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.hour text.utc {stroke: none; fill: rgb(91, 68, 38);}
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.winter path {fill: rgb(70, 62, 108);}
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.active.winter path {fill: rgb(100, 92, 138);}
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.spring path {fill: rgb(55, 87, 55);}
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.active.spring path {fill: rgb(85, 117, 85);}
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.summer path {fill: rgb(113, 92, 43);}
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.active.summer path {fill: rgb(143, 122, 73);}
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.autumn path {fill: rgb(108, 68, 44);}
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.active.autumn path {fill: rgb(138, 98, 74);}
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.local-hour {stroke: none; fill: rgb(238, 187, 85);}
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.night-time {stroke: none; fill: rgb(19, 17, 30);}
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.blue-hour {stroke: none; fill: rgb(9, 1, 119);}
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.golden-hour {stroke: none; fill: rgb(170, 132, 44);}
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.day-time {stroke: none; fill: rgb(125, 197, 240);}
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.marker {stroke: rgb(19, 17, 30); stroke-width: 2px; fill: none;}
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.moon-background {stroke: rgb(170, 170, 170); stroke-width: 2px; fill: rgb(19, 17, 30);}
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.moon {stroke: none; fill: rgb(170, 170, 170);}
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.sun {stroke: none; fill: rgb(238, 187, 85);}
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.mid-marker {stroke: red;}
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.dial {stroke-width: 2px; stroke: rgb(238, 187, 85);}
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#current-hour rect {stroke: none; fill: rgba(255, 255, 255, 0.5);}
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#current-hour-name {font-weight: bold;}",
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);
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let definitions = Definitions::new().add(hour_name_path(ring_width));
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let mut local_clock = Group::new().set("id", "local-clock");
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for hour in 0i32..24 {
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let hour_str = match hour {
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0 => "Midnight".to_string(),
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12 => "Noon".to_string(),
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_ => hour.to_string(),
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};
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let rotation = hour * 15;
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let hour_name = TextNode::new(hour_str);
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let hour_node = Text::new()
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.set("class", "local-hour")
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.set("transform", format!("rotate({}, 350, 350)", 180 + rotation))
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.set("x", (IMAGE_WIDTH as f32) / 2.0)
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.set(
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"y",
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(IMAGE_WIDTH as f32) / 2.0 - OUTER_R - local_hour_font_size / 2.0,
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)
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.set("text-anchor", "middle")
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.set("font-size", local_hour_font_size as f32)
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.add(hour_name);
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local_clock = local_clock.add(hour_node);
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}
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let mut seasonal_clock = Group::new().set(
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"transform",
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format!(
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"rotate({}, {}, {})",
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utc_rotation,
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IMAGE_WIDTH / 2,
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IMAGE_WIDTH / 2
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),
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);
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for hour in 0i32..24 {
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seasonal_clock = seasonal_clock.add(hour_marker(
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hour,
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hour == utc_hour as i32,
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ring_width,
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utc_hour_font_size,
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));
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}
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let daytime_circle = Circle::new()
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.set("class", "day-time")
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.set("cx", IMAGE_WIDTH / 2)
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.set("cy", IMAGE_WIDTH / 2)
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.set("r", marker_radius);
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let day_parts_group: Option<Group> = if config.is_some() {
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let sun_times = suncalc::get_times(
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unixtime,
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config.unwrap().latitude,
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config.unwrap().longitude,
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None,
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);
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let noon = Utc
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.timestamp_millis(sun_times.solar_noon.0)
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.time()
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.num_seconds_from_midnight() as i32;
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let midnight = Utc
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.timestamp_millis(sun_times.nadir.0)
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.time()
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.num_seconds_from_midnight() as i32;
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let morning_golden_end = Utc
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.timestamp_millis(sun_times.golden_hour_end.0)
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.time()
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.num_seconds_from_midnight() as i32;
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let evening_golden_start = Utc
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.timestamp_millis(sun_times.golden_hour.0)
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.time()
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.num_seconds_from_midnight() as i32;
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let sunrise = Utc
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.timestamp_millis(sun_times.sunrise.0)
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.time()
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.num_seconds_from_midnight() as i32;
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let sunset = Utc
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.timestamp_millis(sun_times.sunset.0)
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.time()
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.num_seconds_from_midnight() as i32;
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let dawn = Utc
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.timestamp_millis(sun_times.dawn.0)
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.time()
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.num_seconds_from_midnight() as i32;
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let dusk = Utc
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.timestamp_millis(sun_times.dusk.0)
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.time()
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.num_seconds_from_midnight() as i32;
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let golden_hour_path = get_range_path(
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marker_radius,
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"golden-hour",
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morning_golden_end,
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evening_golden_start,
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);
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let sun_disc = Circle::new()
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.set("class", "sun")
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.set("cx", IMAGE_WIDTH / 2)
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.set("cy", IMAGE_WIDTH as f32 / 2.0 + OUTER_R / 2.0 + sun_radius)
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.set("r", sun_radius)
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.set(
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"transform",
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format!(
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"rotate({}, {}, {})",
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time_to_degrees(local_time) - utc_rotation,
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IMAGE_WIDTH / 2,
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IMAGE_WIDTH / 2
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),
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);
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let blue_hour_path = get_range_path(
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marker_radius,
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"blue-hour",
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sunrise, // morning_blue_end
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sunset, // evening_blue_start
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);
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let nighttime_path = get_range_path(marker_radius, "night-time", dawn, dusk);
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let marker_circle = Circle::new()
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.set("class", "marker")
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.set("cx", IMAGE_WIDTH / 2)
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.set("cy", IMAGE_WIDTH / 2)
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.set("r", marker_radius);
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let noon_marker = Line::new()
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.set("class", "mid-marker")
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.set(
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"transform",
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format!(
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"rotate({}, {}, {})",
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time_to_degrees(noon),
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IMAGE_WIDTH / 2,
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IMAGE_WIDTH / 2
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),
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)
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.set("x1", IMAGE_WIDTH / 2)
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.set(
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"y1",
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IMAGE_WIDTH as f32 / 2.0 + marker_radius - sun_radius as f32,
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)
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.set("x2", IMAGE_WIDTH / 2)
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.set("y2", IMAGE_WIDTH as f32 / 2.0 + marker_radius);
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let midnight_marker = Line::new()
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.set("class", "mid-marker")
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.set(
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"transform",
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format!(
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"rotate({}, {}, {})",
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time_to_degrees(midnight),
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IMAGE_WIDTH / 2,
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IMAGE_WIDTH / 2
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),
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)
|
||
.set("x1", IMAGE_WIDTH / 2)
|
||
.set(
|
||
"y1",
|
||
IMAGE_WIDTH as f32 / 2.0 + marker_radius - sun_radius as f32,
|
||
)
|
||
.set("x2", IMAGE_WIDTH / 2)
|
||
.set("y2", IMAGE_WIDTH as f32 / 2.0 + marker_radius);
|
||
|
||
Some(
|
||
Group::new()
|
||
.set("id", "day-parts")
|
||
.set(
|
||
"transform",
|
||
format!(
|
||
"rotate({}, {}, {})",
|
||
utc_rotation,
|
||
IMAGE_WIDTH / 2,
|
||
IMAGE_WIDTH / 2
|
||
),
|
||
)
|
||
.add(daytime_circle)
|
||
.add(golden_hour_path)
|
||
.add(sun_disc)
|
||
.add(blue_hour_path)
|
||
.add(nighttime_path)
|
||
.add(marker_circle)
|
||
.add(noon_marker)
|
||
.add(midnight_marker),
|
||
)
|
||
} else {
|
||
None
|
||
};
|
||
|
||
let moon_circle = Circle::new()
|
||
.set("class", "moon-background")
|
||
.set("cx", IMAGE_WIDTH / 2)
|
||
.set("cy", IMAGE_WIDTH / 2)
|
||
.set("r", moon_radius);
|
||
|
||
let moon_group = Group::new()
|
||
.set("id", "moon-container")
|
||
.add(moon_circle)
|
||
.add(get_moon_path(moon_radius, moon_phase));
|
||
|
||
let dial = Line::new()
|
||
.set("id", "dial")
|
||
.set("class", "dial")
|
||
.set(
|
||
"transform",
|
||
format!(
|
||
"rotate({}, {}, {})",
|
||
time_to_degrees(local_time),
|
||
IMAGE_WIDTH / 2,
|
||
IMAGE_WIDTH / 2
|
||
),
|
||
)
|
||
.set("x1", IMAGE_WIDTH / 2)
|
||
.set("y1", IMAGE_WIDTH as f32 / 2.0 + OUTER_R * 0.5)
|
||
.set("x2", IMAGE_WIDTH / 2)
|
||
.set(
|
||
"y2",
|
||
IMAGE_WIDTH as f32 / 2.0 + OUTER_R - ring_width + HOUR_NAME_FONT_SIZE,
|
||
);
|
||
|
||
let current_box_width = (200f32 / 700f32) * IMAGE_WIDTH as f32;
|
||
let current_box_height = (100f32 / 700f32) * IMAGE_WIDTH as f32;
|
||
let current_hour_name_font_size = (40f32 / 700f32) * IMAGE_WIDTH as f32;
|
||
let current_time_font_size = (30f32 / 700f32) * IMAGE_WIDTH as f32;
|
||
|
||
let current_hour_rect = Rectangle::new()
|
||
.set("x1", 0)
|
||
.set("y1", 0)
|
||
.set("width", current_box_width)
|
||
.set("height", current_box_height);
|
||
|
||
let current_hour_name = Text::new()
|
||
.set("id", "current-hour-name")
|
||
.set("font-size", current_hour_name_font_size)
|
||
.set("text-anchor", "middle")
|
||
.set("dominant-baseline", "mathematical")
|
||
.set("x", current_box_width / 2.0)
|
||
.set(
|
||
"y",
|
||
(current_box_height / 5.0) + (current_hour_name_font_size / 2.0),
|
||
)
|
||
.add(TextNode::new(HOUR_NAMES[utc_hour as usize]));
|
||
|
||
let current_time_text = Text::new()
|
||
.set("font-size", current_time_font_size)
|
||
.set("text-anchor", "middle")
|
||
.set("dominant-baseline", "mathematical")
|
||
.set("x", current_box_width / 2.0)
|
||
.set("y", current_box_height - (current_time_font_size / 2.0))
|
||
.add(TextNode::new(format!(
|
||
"{:02}:{:02}:{:02}",
|
||
local_hour, local_minute, local_second
|
||
)));
|
||
|
||
let top_pos = if (6..=18).contains(&local_hour) {
|
||
moon_radius * 1.5 // under the moon
|
||
} else {
|
||
0.0 - moon_radius * 1.5 - current_box_height // above the moon
|
||
};
|
||
|
||
let current_hour_group = Group::new()
|
||
.set("id", "current-hour")
|
||
.set(
|
||
"transform",
|
||
format!(
|
||
"translate({}, {})",
|
||
IMAGE_WIDTH as f32 / 2.0 - current_box_width / 2.0,
|
||
IMAGE_WIDTH as f32 / 2.0 + top_pos
|
||
),
|
||
)
|
||
.add(current_hour_rect)
|
||
.add(current_hour_name)
|
||
.add(current_time_text);
|
||
|
||
let mut document = Document::new()
|
||
.set("viewBox", (0i32, 0i32, 700i32, 700i32))
|
||
.set("width", 700i32)
|
||
.set("height", 700i32)
|
||
.set("xmlns:xlink", "http://www.w3.org/1999/xlink")
|
||
.add(stylesheet)
|
||
.add(definitions)
|
||
.add(border)
|
||
.add(local_clock);
|
||
|
||
if let Some(..) = day_parts_group {
|
||
document = document.add(day_parts_group.unwrap());
|
||
}
|
||
|
||
document
|
||
.add(seasonal_clock)
|
||
.add(moon_group)
|
||
.add(dial)
|
||
.add(current_hour_group)
|
||
}
|
||
|
||
fn main() {
|
||
let xdg_dirs = xdg::BaseDirectories::new().unwrap();
|
||
let config_path = xdg_dirs
|
||
.place_config_file("seasonal-clock.toml")
|
||
.expect("cannot create configuration directory");
|
||
let data: std::io::Result<String> = fs::read_to_string(config_path);
|
||
let config: Option<Config> = if let Ok(..) = data {
|
||
let complete_config: CompleteConfig = toml::from_str(&data.unwrap()).unwrap();
|
||
Some(complete_config.seasonal_clock)
|
||
} else {
|
||
None
|
||
};
|
||
|
||
let (env, display, queue) = sctk::new_default_environment!(SeasonalClock, desktop)
|
||
.expect("Unable to connect to a Wayland compositor");
|
||
|
||
let surface = env
|
||
.create_surface_with_scale_callback(|dpi, _surface, _dispatch_data| {
|
||
println!("dpi changed to {}", dpi);
|
||
})
|
||
.detach();
|
||
|
||
let mut next_action = None::<WEvent>;
|
||
|
||
let mut window = env
|
||
.create_window::<FallbackFrame, _>(
|
||
surface,
|
||
None,
|
||
(100, 100),
|
||
move |evt, mut dispatch_data| {
|
||
let next_action = dispatch_data.get::<Option<WEvent>>().unwrap();
|
||
let replace = matches!(
|
||
(&evt, &*next_action),
|
||
(_, &None)
|
||
| (_, &Some(WEvent::Refresh))
|
||
| (&WEvent::Configure { .. }, &Some(WEvent::Configure { .. }))
|
||
| (&WEvent::Close, _)
|
||
);
|
||
|
||
if replace {
|
||
*next_action = Some(evt);
|
||
}
|
||
},
|
||
)
|
||
.expect("Failed to create a window !");
|
||
|
||
window.set_title("Seasonal Hours Clock".to_string());
|
||
|
||
let mut pool = env
|
||
.create_auto_pool()
|
||
.expect("Failed to create the memory pool.");
|
||
let mut need_redraw = false;
|
||
let mut dimensions = (700, 700);
|
||
|
||
if !env.get_shell().unwrap().needs_configure() {
|
||
redraw(&mut pool, window.surface(), dimensions, &config).expect("Failed to draw");
|
||
window.refresh()
|
||
}
|
||
|
||
let mut event_loop = EventLoop::<Option<WEvent>>::try_new().unwrap();
|
||
let handle = event_loop.handle();
|
||
let source = Timer::new().expect("Failed to create timer event source!");
|
||
let timer_handle = source.handle();
|
||
timer_handle.add_timeout(std::time::Duration::from_secs(1), "");
|
||
|
||
handle
|
||
.insert_source(source, |_, timer_handle, event| {
|
||
timer_handle.add_timeout(std::time::Duration::from_secs(1), "");
|
||
if event.is_none() {
|
||
*event = Some(sctk::window::Event::Refresh);
|
||
}
|
||
})
|
||
.unwrap();
|
||
|
||
sctk::WaylandSource::new(queue)
|
||
.quick_insert(handle)
|
||
.unwrap();
|
||
|
||
loop {
|
||
// Update every second
|
||
match next_action.take() {
|
||
Some(WEvent::Close) => break,
|
||
Some(WEvent::Refresh) => {
|
||
redraw(&mut pool, window.surface(), dimensions, &config).expect("Failed to draw");
|
||
window.refresh();
|
||
window.surface().commit();
|
||
}
|
||
Some(WEvent::Configure {
|
||
new_size,
|
||
states: _,
|
||
}) => {
|
||
if let Some((w, h)) = new_size {
|
||
if dimensions != (w, h) {
|
||
dimensions = (w, h);
|
||
}
|
||
}
|
||
window.resize(dimensions.0, dimensions.1);
|
||
window.refresh();
|
||
need_redraw = true;
|
||
}
|
||
None => {}
|
||
}
|
||
|
||
if need_redraw {
|
||
need_redraw = false;
|
||
|
||
redraw(&mut pool, window.surface(), dimensions, &config).expect("Failed to draw")
|
||
}
|
||
|
||
if let Err(e) = display.flush() {
|
||
if e.kind() != ::std::io::ErrorKind::WouldBlock {
|
||
eprintln!("Error while trying to flush the wayland socket: {:?}", e);
|
||
}
|
||
}
|
||
|
||
event_loop.dispatch(None, &mut next_action).unwrap();
|
||
}
|
||
}
|
||
|
||
fn redraw(
|
||
pool: &mut AutoMemPool,
|
||
surface: &wl_surface::WlSurface,
|
||
(buf_x, buf_y): (u32, u32),
|
||
config: &Option<Config>,
|
||
) -> Result<(), ::std::io::Error> {
|
||
let document = gen_svg(config);
|
||
|
||
let bytes = document.to_string();
|
||
let mut opt = usvg::Options::default();
|
||
opt.fontdb.load_system_fonts();
|
||
opt.font_family = "Liberation Serif".to_string();
|
||
let svg_tree = usvg::Tree::from_str(&bytes, &opt.to_ref()).unwrap();
|
||
|
||
let (canvas, new_buffer) = pool.buffer(
|
||
buf_x as i32,
|
||
buf_y as i32,
|
||
4 * buf_x as i32,
|
||
wl_shm::Format::Argb8888,
|
||
)?;
|
||
|
||
let image_size = ::std::cmp::min(buf_x, buf_y);
|
||
let move_x = (buf_x - image_size) as f32 / 2.0;
|
||
let move_y = (buf_y - image_size) as f32 / 2.0;
|
||
let mut pixmap = tiny_skia::Pixmap::new(buf_x, buf_y).unwrap();
|
||
// pre-fill the pixmap with our background color so we don’t have a white strip at the edges
|
||
pixmap.fill(
|
||
tiny_skia::Color::from_rgba(19f32 / 255f32, 17f32 / 255f32, 30f32 / 255f32, 1f32).unwrap(),
|
||
);
|
||
resvg::render(
|
||
&svg_tree,
|
||
usvg::FitTo::Size(image_size, image_size),
|
||
tiny_skia::Transform::from_translate(move_x, move_y),
|
||
pixmap.as_mut(),
|
||
)
|
||
.unwrap();
|
||
// We do not have anything to draw yet, so draw an empty surface
|
||
for (dst_pixel, src_pixel) in canvas.chunks_exact_mut(4).zip(pixmap.pixels()) {
|
||
let r = src_pixel.red() as u32;
|
||
let g = src_pixel.green() as u32;
|
||
let b = src_pixel.blue() as u32;
|
||
let a = src_pixel.alpha() as u32;
|
||
|
||
let r = ::std::cmp::min(0xFF, (0xFF * (0xFF - a) + a * r) / 0xFF);
|
||
let g = ::std::cmp::min(0xFF, (0xFF * (0xFF - a) + a * g) / 0xFF);
|
||
let b = ::std::cmp::min(0xFF, (0xFF * (0xFF - a) + a * b) / 0xFF);
|
||
|
||
let pixel: [u8; 4] = ((0xFF << 24) + (r << 16) + (g << 8) + b).to_ne_bytes();
|
||
|
||
dst_pixel[0] = pixel[0];
|
||
dst_pixel[1] = pixel[1];
|
||
dst_pixel[2] = pixel[2];
|
||
dst_pixel[3] = pixel[3];
|
||
}
|
||
|
||
surface.attach(Some(&new_buffer), 0, 0);
|
||
|
||
if surface.as_ref().version() >= 4 {
|
||
surface.damage_buffer(0, 0, buf_x as i32, buf_y as i32);
|
||
} else {
|
||
surface.damage(0, 0, buf_x as i32, buf_y as i32);
|
||
}
|
||
|
||
surface.commit();
|
||
|
||
Ok(())
|
||
}
|