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[package]
name = "film-manager"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
chrono = { version = "0.4.25", features = ["serde"] }
eframe = { version = "0.22.0", features = ["ron", "persistence"] }
egui-datepicker = { version = "0.3.0", path = "egui-datepicker" }
egui_extras = { version = "0.22.0", features = ["datepicker"] }
env_logger = "0.10.0"
itertools = "0.10.5"
serde = { version = "1.0.163", features = ["derive"] }
toml = "0.7.4"

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.pre-commit-config.yaml

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[package]
name = "egui-datepicker"
version = "0.3.0"
edition = "2018"
license = "MIT OR Apache-2.0"
description = "Adds date picker widget for egui gui library"
keywords = ["gui"]
categories = ["gui"]
repository = "https://github.com/Shadr/egui-datepicker"
include = [
"**/*.rs",
"Cargo.toml",
]
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
eframe = "0.22"
chrono = "0.4"
num-traits = "0.2"
[[example]]
name = "simple"

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MIT License
Copyright (c) 2021 Shadr
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# egui-datepicker
[![Latest version](https://img.shields.io/crates/v/egui-datepicker)](https://crates.io/crates/egui-datepicker)
This library provide a simple date picker widget for egui with some customization. Checkout the [gif](media/preview.gif) to see widget in action!
<p align="center">
<img src="media/datepicker-image.png">
</p>
## ⚡️ Quickstart
Add `egui-datepicker` as dependency to your project
```toml
[dependencies]
egui-datepicker = "0.3"
```
Import necessary structs
```rust
use egui_datepicker::{DatePicker, Date, Utc};
```
or if you already include `chrono` in your project
```rust
use egui_datepicker::DatePicker;
use chrono::{Date, offset::Utc};
```
Add date field with selected time offset in app struct
```rust
struct MyApp {
date: Date<Utc>,
}
```
Add widget in update function
```rust
fn update(/*snip*/) {
/*snip*/
ui.add(DatePicker::new("datepicker-unique-id", &mut self.date));
/*snip*/
}
```
## 👀 Customization
You can set first day of week to sunday with
```rust
DatePicker::new(/*snip*/).sunday_first(true)
```
Make popup window movable
```rust
DatePicker::new(/*snip*/).movable(true)
```
Set different date format
```rust
DatePicker::new(/*snip*/).date_format("%d/%m/%Y")
```
## ⚠️ License
`egui-datepicker` is licensed under MIT OR Apache-2.0

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use chrono::Datelike;
use eframe::{
egui::{self, Color32},
epi,
};
use egui_datepicker::*;
struct ExampleApp {
date: Date<Utc>,
}
impl Default for ExampleApp {
fn default() -> Self {
Self {
date: Utc::now().date(),
}
}
}
impl epi::App for ExampleApp {
fn name(&self) -> &str {
"Datepicker example"
}
fn update(&mut self, ctx: &egui::CtxRef, _frame: &epi::Frame) {
// ctx.set_debug_on_hover(true);
egui::CentralPanel::default().show(ctx, |ui| {
egui::Grid::new("exaamples_grid").show(ui, |ui| {
ui.label("Default");
ui.add(DatePicker::new("default", &mut self.date));
ui.end_row();
ui.label("Sunday first");
ui.add(DatePicker::new("sundayfirst", &mut self.date).sunday_first(true));
ui.end_row();
ui.label("Movable popup");
ui.add(DatePicker::new("movable", &mut self.date).movable(true));
ui.end_row();
ui.label("Different format");
ui.add(DatePicker::new("differentformat", &mut self.date).date_format(&"%d/%m/%Y"));
ui.end_row();
ui.label("Disable weekend highlight");
ui.add(
DatePicker::new("noweekendhighlight", &mut self.date).highlight_weekend(false),
);
ui.end_row();
ui.label("Different weekend color");
ui.add(
DatePicker::new("differentweekendcolor", &mut self.date)
.highlight_weekend_color(Color32::from_rgb(0, 196, 0)),
);
ui.end_row();
ui.label("Different weekend days, i.e. holidays, Christmas, etc");
ui.add(
DatePicker::new("differentweekenddays", &mut self.date)
.weekend_days(|date| date.day() % 2 == 0),
);
ui.end_row();
});
});
}
}
fn main() {
let app = ExampleApp::default();
let native_options = eframe::NativeOptions::default();
eframe::run_native(Box::new(app), native_options);
}

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//! egui-datepicker adds a simple date picker widget.
//! Checkout the [example][ex]
//!
//!
//! ```no_run
//! use eframe::egui::Ui;
//! use chrono::prelude::*;
//! use std::fmt::Display;
//! use egui_datepicker::DatePicker;
//!
//! struct App<Tz>
//! where
//! Tz: TimeZone,
//! Tz::Offset: Display,
//! {
//! date: chrono::NaiveDate
//! }
//! impl<Tz> App<Tz>
//! where
//! Tz: TimeZone,
//! Tz::Offset: Display,
//! {
//! fn draw_datepicker(&mut self, ui: &mut Ui) {
//! ui.add(DatePicker::new("super_unique_id", &mut self.date));
//! }
//! }
//! ```
//!
//! [ex]: ./examples/simple.rs
use std::hash::Hash;
pub use chrono::{NaiveDate, Local};
use chrono::{prelude::*, Duration};
use eframe::{
egui,
egui::{Area, Color32, DragValue, Frame, Id, Key, Order, Response, RichText, Ui, Widget},
};
use num_traits::FromPrimitive;
/// Default values of fields are:
/// - sunday_first: `false`
/// - movable: `false`
/// - format_string: `"%Y-%m-%d"`
/// - weekend_func: `date.weekday() == Weekday::Sat || date.weekday() == Weekday::Sun`
pub struct DatePicker<'a>
{
id: Id,
date: &'a mut NaiveDate,
sunday_first: bool,
movable: bool,
format_string: String,
weekend_color: Color32,
weekend_func: fn(&NaiveDate) -> bool,
highlight_weekend: bool,
}
impl<'a> DatePicker<'a>
{
/// Create new date picker with unique id and mutable reference to date.
pub fn new<T: Hash>(id: T, date: &'a mut NaiveDate) -> Self {
Self {
id: Id::new(id),
date,
sunday_first: false,
movable: false,
format_string: String::from("%Y-%m-%d"),
weekend_color: Color32::from_rgb(196, 0, 0),
weekend_func: |date| date.weekday() == Weekday::Sat || date.weekday() == Weekday::Sun,
highlight_weekend: true,
}
}
/// If flag is set to true then first day in calendar will be sunday otherwise monday.
/// Default is false
#[must_use]
pub fn sunday_first(mut self, flag: bool) -> Self {
self.sunday_first = flag;
self
}
/// If flag is set to true then date picker popup will be movable.
/// Default is false
#[must_use]
pub fn movable(mut self, flag: bool) -> Self {
self.movable = flag;
self
}
///Set date format.
///See the [chrono::format::strftime](https://docs.rs/chrono/0.4.19/chrono/format/strftime/index.html) for the specification.
#[must_use]
pub fn date_format(mut self, new_format: &impl ToString) -> Self {
self.format_string = new_format.to_string();
self
}
///If highlight is true then weekends text color will be `weekend_color` instead default text
///color.
#[must_use]
pub fn highlight_weekend(mut self, highlight: bool) -> Self {
self.highlight_weekend = highlight;
self
}
///Set weekends highlighting color.
#[must_use]
pub fn highlight_weekend_color(mut self, color: Color32) -> Self {
self.weekend_color = color;
self
}
/// Set function, which will decide if date is a weekend day or not.
pub fn weekend_days(mut self, is_weekend: fn(&NaiveDate) -> bool) -> Self {
self.weekend_func = is_weekend;
self
}
/// Draw names of week days as 7 columns of grid without calling `Ui::end_row`
fn show_grid_header(&mut self, ui: &mut Ui) {
let day_indexes = if self.sunday_first {
[6, 0, 1, 2, 3, 4, 5]
} else {
[0, 1, 2, 3, 4, 5, 6]
};
for i in day_indexes {
let b = Weekday::from_u8(i).unwrap();
ui.label(b.to_string());
}
}
/// Get number of days between first day of the month and Monday ( or Sunday if field
/// `sunday_first` is set to `true` )
fn get_start_offset_of_calendar(&self, first_day: &NaiveDate) -> u32 {
if self.sunday_first {
first_day.weekday().num_days_from_sunday()
} else {
first_day.weekday().num_days_from_monday()
}
}
/// Get number of days between first day of the next month and Monday ( or Sunday if field
/// `sunday_first` is set to `true` )
fn get_end_offset_of_calendar(&self, first_day: &NaiveDate) -> u32 {
if self.sunday_first {
(7 - (first_day).weekday().num_days_from_sunday()) % 7
} else {
(7 - (first_day).weekday().num_days_from_monday()) % 7
}
}
fn show_calendar_grid(&mut self, ui: &mut Ui) {
egui::Grid::new("calendar").show(ui, |ui| {
self.show_grid_header(ui);
let first_day_of_current_month = self.date.with_day(1).unwrap();
let start_offset = self.get_start_offset_of_calendar(&first_day_of_current_month);
let days_in_month = get_days_from_month(self.date.year(), self.date.month());
let first_day_of_next_month =
first_day_of_current_month.clone() + Duration::days(days_in_month);
let end_offset = self.get_end_offset_of_calendar(&first_day_of_next_month);
let start_date = first_day_of_current_month - Duration::days(start_offset.into());
for i in 0..(start_offset as i64 + days_in_month + end_offset as i64) {
if i % 7 == 0 {
ui.end_row();
}
let d = start_date.clone() + Duration::days(i);
self.show_day_button(d, ui);
}
});
}
fn show_day_button(&mut self, date: NaiveDate, ui: &mut Ui) {
ui.add_enabled_ui(self.date != &date, |ui| {
ui.centered_and_justified(|ui| {
if self.date.month() != date.month() {
ui.style_mut().visuals.button_frame = false;
}
if self.highlight_weekend && (self.weekend_func)(&date) {
ui.style_mut().visuals.override_text_color = Some(self.weekend_color);
}
if ui.button(date.day().to_string()).clicked() {
*self.date = date;
}
});
});
}
/// Draw current month and buttons for next and previous month.
fn show_header(&mut self, ui: &mut Ui) {
ui.horizontal(|ui| {
self.show_month_control(ui);
self.show_year_control(ui);
if ui.button("Today").clicked() {
*self.date = Local::now().date_naive();
}
});
}
/// Draw button with text and add duration to current date when that button is clicked.
fn date_step_button(&mut self, ui: &mut Ui, text: impl ToString, duration: Duration) {
if ui.button(text.to_string()).clicked() {
*self.date = self.date.clone() + duration;
}
}
/// Draw drag value widget with current year and two buttons which substract and add 365 days
/// to current date.
fn show_year_control(&mut self, ui: &mut Ui) {
self.date_step_button(ui, "<", Duration::days(-365));
let mut drag_year = self.date.year();
ui.add(DragValue::new(&mut drag_year));
if drag_year != self.date.year() {
*self.date = self.date.with_year(drag_year).unwrap();
}
self.date_step_button(ui, ">", Duration::days(365));
}
/// Draw label(will be combobox in future) with current month and two buttons which substract and add 30 days
/// to current date.
fn show_month_control(&mut self, ui: &mut Ui) {
self.date_step_button(ui, "<", Duration::days(-30));
let month_string = chrono::Month::from_u32(self.date.month()).unwrap().name();
// TODO: When https://github.com/emilk/egui/pull/543 is merged try to change label to combo box.
ui.add(egui::Label::new(
RichText::new(format!("{: <9}", month_string)).text_style(egui::TextStyle::Monospace),
));
// let mut selected = self.date.month0() as usize;
// egui::ComboBox::from_id_source(self.id.with("month_combo_box"))
// .selected_text(selected)
// .show_index(ui, &mut selected, 12, |i| {
// chrono::Month::from_usize(i + 1).unwrap().name().to_string()
// });
// if selected != self.date.month0() as usize {
// *self.date = self.date.with_month0(selected as u32).unwrap();
// }
self.date_step_button(ui, ">", Duration::days(30));
}
}
impl<'a> Widget for DatePicker<'a> {
fn ui(mut self, ui: &mut Ui) -> Response {
let formated_date = self.date.format(&self.format_string);
let button_response = ui.button(formated_date.to_string());
if button_response.clicked() {
ui.memory_mut(|mem| mem.toggle_popup(self.id));
}
if ui.memory(|mem| mem.is_popup_open(self.id)) {
let mut area = Area::new(self.id)
.order(Order::Foreground)
.default_pos(button_response.rect.left_bottom());
if !self.movable {
area = area.movable(false);
}
let area_response = area
.show(ui.ctx(), |ui| {
Frame::popup(ui.style()).show(ui, |ui| {
self.show_header(ui);
self.show_calendar_grid(ui);
});
})
.response;
if !button_response.clicked()
&& (ui.input(|inp| inp.key_pressed(Key::Escape)) || area_response.clicked_elsewhere())
{
ui.memory_mut(|mem| mem.toggle_popup(self.id));
}
}
button_response
}
}
// https://stackoverflow.com/a/58188385
fn get_days_from_month(year: i32, month: u32) -> i64 {
NaiveDate::from_ymd_opt(
match month {
12 => year + 1,
_ => year,
},
match month {
12 => 1,
_ => month + 1,
},
1,
).unwrap()
.signed_duration_since(NaiveDate::from_ymd_opt(year, month, 1).unwrap())
.num_days()
}

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#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")] // hide console window on Windows in release
use eframe::{
egui::{self, RichText, Slider, Window},
epaint::Color32,
};
use egui_datepicker::{DatePicker, Local, NaiveDate};
use itertools::Itertools;
use serde::{Deserialize, Serialize};
fn main() -> Result<(), eframe::Error> {
env_logger::init(); // Log to stderr (if you run with `RUST_LOG=debug`).
let options = eframe::NativeOptions {
initial_window_size: Some(egui::vec2(320.0, 240.0)),
..Default::default()
};
eframe::run_native(
"Film Manager",
options,
Box::new(|cc| Box::new(MyApp::new(cc))),
)
}
#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct Exposure {
num: u8,
#[serde(default)]
printed: bool,
#[serde(default)]
damaged: bool,
#[serde(default)]
paper: Option<String>,
}
#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct Roll {
id: String,
name: String,
#[serde(default)]
desc: String,
date: NaiveDate,
exposures: Vec<Exposure>,
}
impl Roll {
fn new(id: String, name: String, desc: String, date: NaiveDate, num_exposures: u8) -> Self {
let mut exposures = Vec::new();
for num in 1..=num_exposures {
exposures.push(Exposure {
num,
printed: false,
damaged: false,
paper: None,
})
}
Self {
id,
name,
desc,
date,
exposures,
}
}
pub fn short_str(&self) -> String {
format!(
"{}{} on {}, {} exp",
self.id,
if self.name.is_empty() {
String::new()
} else {
format!(" - {}", self.name)
},
self.date.format("%m/%d/%Y"),
self.exposures.len()
)
}
}
struct AppState {
rolls: Vec<Roll>,
}
struct MyApp {
state: AppState,
view_roll_state: Option<ViewRollState>,
new_roll_state: Option<NewRollState>,
}
struct ViewRollState {
roll: usize,
confirm_delete: bool,
exp: u8,
}
impl ViewRollState {
fn new(roll: usize) -> Self {
Self {
roll,
confirm_delete: false,
exp: 0,
}
}
}
struct NewRollState {
id: String,
name: String,
desc: String,
date: NaiveDate,
exps: u8,
show_id_req_err: bool,
}
impl Default for NewRollState {
fn default() -> Self {
Self {
id: String::new(),
name: String::new(),
desc: String::new(),
date: Local::now().date_naive(),
exps: 24,
show_id_req_err: false,
}
}
}
impl MyApp {
fn new(cc: &eframe::CreationContext<'_>) -> Self {
let rolls = eframe::get_value(cc.storage.unwrap(), "rolls").unwrap_or_else(|| {
vec![Roll::new(
"00001".into(),
"Test".into(),
"Testing".into(),
Local::now().date_naive(),
24,
)]
});
Self {
state: AppState { rolls },
view_roll_state: None,
new_roll_state: None,
}
}
}
impl eframe::App for MyApp {
fn save(&mut self, storage: &mut dyn eframe::Storage) {
eframe::set_value(storage, "rolls", &self.state.rolls);
}
fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
egui::CentralPanel::default().show(ctx, |ui| {
ui.heading("Film Manager");
ui.label("Rolls:");
for (i, roll) in self.state.rolls.iter().enumerate() {
if ui.button(roll.short_str()).clicked() && self.view_roll_state.is_none() {
self.view_roll_state = Some(ViewRollState::new(i));
}
}
if ui.button("Add").clicked() && self.new_roll_state.is_none() {
self.new_roll_state = Some(NewRollState::default());
}
if let Some(view_roll_state) = self.view_roll_state.as_mut() {
if view_roll_window(ctx, view_roll_state, &mut self.state) {
self.view_roll_state = None;
}
}
if let Some(new_roll_state) = self.new_roll_state.as_mut() {
if new_roll_window(ctx, new_roll_state, &mut self.state) {
self.new_roll_state = None;
}
}
});
}
}
fn view_roll_window(
ctx: &egui::Context,
win_state: &mut ViewRollState,
app_state: &mut AppState,
) -> bool {
let mut open = true;
let window =
Window::new(format!("Roll {}", app_state.rolls[win_state.roll].id)).open(&mut open);
let deleted = window
.show(ctx, |ui| {
let roll = &mut app_state.rolls[win_state.roll];
ui.label(format!("Name: {}", roll.name));
ui.label(format!("Description: {}", roll.desc));
ui.label(format!("Date: {}", roll.date.format("%Y-%m-%d")));
ui.label("Exposures:");
ui.horizontal_top(|ui| {
ui.vertical(|ui| {
for (i, chunk) in roll.exposures.iter().chunks(5).into_iter().enumerate() {
ui.horizontal(|ui| {
for (j, exp) in chunk.enumerate() {
let num = i * 5 + j;
let mut label = RichText::new(format!("{:02}", exp.num));
if exp.printed {
if exp.damaged {
label = label.color(Color32::DARK_RED);
} else {
label = label.color(Color32::DARK_BLUE);
}
}
ui.selectable_value(&mut win_state.exp, num as u8, label);
}
});
}
});
ui.vertical(|ui| {
let exp = &mut roll.exposures[win_state.exp as usize];
ui.checkbox(&mut exp.printed, "Printed");
if !exp.printed {
exp.damaged = false;
}
if exp.printed {
ui.checkbox(&mut exp.damaged, "Damaged");
}
});
});
if ui.button("Delete").clicked() {
win_state.confirm_delete = true;
}
if win_state.confirm_delete {
Window::new("Confirm delete")
.show(ctx, |ui| {
ui.heading(format!(
"Really delete roll {}?",
app_state.rolls[win_state.roll].id
));
if ui.button("No").clicked() {
win_state.confirm_delete = false;
return false;
}
if ui.button("Yes").clicked() {
app_state.rolls.remove(win_state.roll);
return true;
}
false
})
.unwrap()
.inner
.unwrap_or(false)
} else {
false
}
})
.unwrap()
.inner
.unwrap_or(false);
!open || deleted
}
fn new_roll_window(
ctx: &egui::Context,
win_state: &mut NewRollState,
app_state: &mut AppState,
) -> bool {
let mut open = true;
Window::new("New Roll").open(&mut open).show(ctx, |ui| {
ui.horizontal(|ui| {
let label = ui.label("ID: ");
ui.text_edit_singleline(&mut win_state.id)
.labelled_by(label.id);
});
ui.horizontal(|ui| {
let label = ui.label("Name: ");
ui.text_edit_singleline(&mut win_state.name)
.labelled_by(label.id);
});
let desc_label = ui.label("Description: ");
ui.text_edit_multiline(&mut win_state.desc)
.labelled_by(desc_label.id);
ui.horizontal(|ui| {
let label = ui.label("Date: ");
ui.add(
DatePicker::new("new_roll_date", &mut win_state.date)
.sunday_first(true)
.highlight_weekend(false),
)
.labelled_by(label.id);
});
ui.horizontal(|ui| {
let label = ui.label("Num exposures: ");
ui.add(Slider::new(&mut win_state.exps, 1..=50).step_by(1.0))
.labelled_by(label.id);
});
if ui.button("Submit").clicked() {
if win_state.id.is_empty() {
win_state.show_id_req_err = true;
} else {
app_state.rolls.push(Roll::new(
win_state.id.clone(),
win_state.name.clone(),
win_state.desc.clone(),
win_state.date,
win_state.exps,
));
}
}
if win_state.show_id_req_err {
ui.colored_label(Color32::DARK_RED, "Error: ID required");
}
});
!open
}