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|
use cursive::direction::Direction;
use cursive::event::{Event, EventResult, Key};
use cursive::theme::{ColorStyle, Effect, Style};
use cursive::view::View;
use cursive::{Printer, Vec2};
use chrono::prelude::*;
use chrono::{Local, NaiveDate};
use crate::habit::{Bit, Count, Float, Habit, TrackEvent, ViewMode};
use crate::theme::cursor_bg;
use crate::utils::VIEW_WIDTH;
use crate::CONFIGURATION;
pub trait ShadowView {
fn draw(&self, printer: &Printer);
fn required_size(&mut self, _: Vec2) -> Vec2;
fn take_focus(&mut self, _: Direction) -> bool;
fn on_event(&mut self, e: Event) -> EventResult;
}
// the only way to not rewrite each View implementation for trait
// objects of Habit is to rewrite the View trait itself.
impl<T> ShadowView for T
where
T: Habit,
T::HabitType: std::fmt::Display,
{
fn draw(&self, printer: &Printer) {
// let now = if self.view_month_offset() == 0 {
// Local::today()
// } else {
// Local::today()
// .checked_sub_signed(Duration::weeks(4 * self.view_month_offset() as i64))
// .unwrap()
// };
let now = self.inner_data_ref().cursor().0;
let is_today = now == Local::now().naive_local().date();
let year = now.year();
let month = now.month();
let goal_reached_style = Style::from(CONFIGURATION.reached_color());
let future_style = Style::from(CONFIGURATION.inactive_color());
let strikethrough = Style::from(Effect::Strikethrough);
let goal_status = is_today && self.reached_goal(Local::now().naive_local().date());
printer.with_style(
Style::merge(&[
if goal_status {
strikethrough
} else {
Style::none()
},
if !printer.focused {
future_style
} else {
Style::none()
},
]),
|p| {
p.print(
(0, 0),
&format!(" {:.width$} ", self.name(), width = VIEW_WIDTH - 6),
);
},
);
let draw_week = |printer: &Printer| {
let days = (1..31)
.map(|i| NaiveDate::from_ymd_opt(year, month, i))
.flatten() // dates 28-31 may not exist, ignore them if they don't
.collect::<Vec<_>>();
for (week, line_nr) in days.chunks(7).zip(2..) {
let weekly_goal = self.goal() * week.len() as u32;
let is_this_week = week.contains(&Local::now().naive_local().date());
let remaining = week.iter().map(|&i| self.remaining(i)).sum::<u32>();
let completions = weekly_goal - remaining;
let full = VIEW_WIDTH - 8;
let bars_to_fill = if weekly_goal > 0 {
(completions * full as u32) / weekly_goal
} else {
0
};
let percentage = if weekly_goal > 0 {
(completions as f64 * 100.) / weekly_goal as f64
} else {
0.0
};
printer.with_style(future_style, |p| {
p.print((4, line_nr), &"─".repeat(full));
});
printer.with_style(goal_reached_style, |p| {
p.print((4, line_nr), &"─".repeat(bars_to_fill as usize));
});
printer.with_style(
if is_this_week {
Style::none()
} else {
future_style
},
|p| {
p.print((0, line_nr), &format!("{:2.0}% ", percentage));
},
);
}
};
let draw_day = |printer: &Printer| {
let mut i = 0;
while let Some(d) = NaiveDate::from_ymd_opt(year, month, i + 1) {
let mut day_style = Style::none();
let mut fs = future_style;
let grs = ColorStyle::front(CONFIGURATION.reached_color());
let ts = ColorStyle::front(CONFIGURATION.todo_color());
let cs = ColorStyle::back(cursor_bg());
if self.reached_goal(d) {
day_style = day_style.combine(Style::from(grs));
} else {
day_style = day_style.combine(Style::from(ts));
}
if d == now && printer.focused {
day_style = day_style.combine(cs);
fs = fs.combine(cs);
}
let coords: Vec2 = ((i % 7) * 3, i / 7 + 2).into();
if let Some(c) = self.get_by_date(d) {
printer.with_style(day_style, |p| {
p.print(coords, &format!("{:^3}", c));
});
} else {
printer.with_style(fs, |p| {
p.print(coords, &format!("{:^3}", CONFIGURATION.look.future_chr));
});
}
i += 1;
}
};
match self.inner_data_ref().view_mode() {
ViewMode::Day => draw_day(printer),
ViewMode::Week => draw_week(printer),
_ => draw_day(printer),
};
}
fn required_size(&mut self, _: Vec2) -> Vec2 {
(25, 6).into()
}
fn take_focus(&mut self, _: Direction) -> bool {
true
}
fn on_event(&mut self, e: Event) -> EventResult {
let now = self.inner_data_mut_ref().cursor().0;
if self.is_auto() {
return EventResult::Ignored;
}
match e {
Event::Key(Key::Enter) | Event::Char('n') => {
self.modify(now, TrackEvent::Increment);
return EventResult::Consumed(None);
}
Event::Key(Key::Backspace) | Event::Char('p') => {
self.modify(now, TrackEvent::Decrement);
return EventResult::Consumed(None);
}
_ => return EventResult::Ignored,
}
}
}
macro_rules! auto_view_impl {
($struct_name:ident) => {
impl View for $struct_name {
fn draw(&self, printer: &Printer) {
ShadowView::draw(self, printer);
}
fn required_size(&mut self, x: Vec2) -> Vec2 {
ShadowView::required_size(self, x)
}
fn take_focus(&mut self, d: Direction) -> bool {
ShadowView::take_focus(self, d)
}
fn on_event(&mut self, e: Event) -> EventResult {
ShadowView::on_event(self, e)
}
}
};
}
macro_rules! generate_view_impls {
($($x:ident),*) => (
$(
auto_view_impl!($x);
)*
);
}
generate_view_impls!(Count, Bit, Float);
|
