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ME-MarvinEME-MarvinE
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Add "ComplexCalendar" to UI framework projects
This calendar has a default implementation for events.
1 parent 0bbb57a commit cad0305

29 files changed

+995
-361
lines changed

‎XCalendar.Forms/Interfaces/IComplexCalendarDay.cs

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using XCalendar.Core.Collections;
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using XCalendar.Core.Interfaces;
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namespace XCalendar.Forms.Interfaces
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{
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public interface IComplexCalendarDay : ICalendarDay
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{
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ObservableRangeCollection<IEvent> Events { get; }
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}
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}

‎XCalendar.Forms/Interfaces/IEvent.cs

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using System;
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using Xamarin.Forms;
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namespace XCalendar.Forms.Interfaces
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{
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public interface IEvent
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{
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string Title { get; set; }
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string Description { get; set; }
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DateTime DateTime { get; set; }
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Color Color { get; set; }
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}
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}

‎XCalendar.Forms/Models/ComplexCalendar.cs

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using System;
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using System.Collections.Generic;
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using System.Collections.Specialized;
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using System.Linq;
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using XCalendar.Core.Collections;
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using XCalendar.Core.Models;
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using XCalendar.Forms.Interfaces;
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namespace XCalendar.Forms.Models
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{
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public class ComplexCalendar : ComplexCalendar<ComplexCalendarDay, Event>
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{
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}
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public class ComplexCalendar<T, TEvent> : Calendar<T> where T : IComplexCalendarDay, new() where TEvent : IEvent
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{
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#region Fields
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private ObservableRangeCollection<TEvent> _events = new ObservableRangeCollection<TEvent>();
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#endregion
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#region Properties
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public ObservableRangeCollection<TEvent> Events
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{
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get
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{
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return _events;
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}
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set
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{
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if (_events != value)
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{
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if (_events != null)
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{
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_events.CollectionChanged -= Events_CollectionChanged;
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}
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if (value != null)
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{
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value.CollectionChanged += Events_CollectionChanged;
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}
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_events = value;
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OnPropertyChanged();
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}
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}
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}
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#endregion
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#region Constructors
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public ComplexCalendar()
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{
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Events = new ObservableRangeCollection<TEvent>();
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}
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#endregion
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#region Methods
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public override void UpdateDay(T day, DateTime newDateTime)
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{
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base.UpdateDay(day, newDateTime);
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UpdateDayEvents(day);
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}
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public virtual void UpdateDayEvents(T day)
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{
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//It is known that the only thing that the events of the day depend on is the DateTime of the day, and that all events will have the same date.
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//So, only update the events if the existing ones' DateTime does not match the day's DateTime.
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//If the day has no events, there is no way to tell if it's because the day hasn't been updated before or if there are no events with that date, so update it either way.
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if (day.Events.Count > 0 && day.DateTime.Date == day.Events[0].DateTime.Date)
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{
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return;
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}
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IEnumerable<TEvent> events = Events.Where(x => x.DateTime.Date == day.DateTime.Date);
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//No use in replacing the collection if the source and target are both empty.
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if (day.Events.Count == 0 && !events.Any())
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{
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return;
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}
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IEnumerable<IEvent> castedEvents = events.Cast<IEvent>();
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//SequenceEqual could be omitted to improve performance but in the vast majority of cases there won't even be more than 5 events in one day, so impact on performance should be negligible
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//compared to always changing the collection and updating the binding.
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if (day.Events.SequenceEqual(castedEvents))
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{
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return;
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}
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day.Events.ReplaceRange(castedEvents);
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}
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private void Events_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
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{
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UpdateDays(NavigatedDate);
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}
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#endregion
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}
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}

‎XCalendar.Forms/Models/ComplexCalendarDay.cs

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using XCalendar.Core.Collections;
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using XCalendar.Core.Models;
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using XCalendar.Forms.Interfaces;
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namespace XCalendar.Forms.Models
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{
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public class ComplexCalendarDay : CalendarDay, IComplexCalendarDay
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{
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#region Fields
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private ObservableRangeCollection<IEvent> _events = new ObservableRangeCollection<IEvent>();
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#endregion
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#region Properties
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public ObservableRangeCollection<IEvent> Events
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{
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get
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{
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return _events;
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}
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set
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{
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if (_events != value)
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{
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_events = value;
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OnPropertyChanged();
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}
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}
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}
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#endregion
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}
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}

‎XCalendar.Forms/Models/Event.cs

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using System;
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using System.ComponentModel;
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using System.Runtime.CompilerServices;
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using Xamarin.Forms;
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using XCalendar.Forms.Interfaces;
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namespace XCalendar.Forms.Models
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{
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public class Event : IEvent, INotifyPropertyChanged
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{
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#region Fields
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private string _title;
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private string _description;
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private DateTime _dateTime = DateTime.Today;
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private Color _color;
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#endregion
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#region Properties
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public string Title
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{
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get
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{
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return _title;
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}
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set
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{
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if (_title != value)
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{
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_title = value;
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OnPropertyChanged();
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}
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}
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}
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public string Description {
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get
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{
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return _description;
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}
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set
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{
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if (_description != value)
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{
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_description = value;
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OnPropertyChanged();
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}
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}
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}
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public DateTime DateTime
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{
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get
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{
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return _dateTime;
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}
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set
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{
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if (_dateTime != value)
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{
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_dateTime = value;
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OnPropertyChanged();
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}
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}
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}
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public Color Color
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{
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get
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{
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return _color;
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}
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set
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{
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if (_color != value)
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{
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_color = value;
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OnPropertyChanged();
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}
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}
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}
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#endregion
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#region Events
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public event PropertyChangedEventHandler PropertyChanged;
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#endregion
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#region Methods
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protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
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{
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PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
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}
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#endregion
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}
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}

‎XCalendar.Forms/Views/DayView.xaml

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x:Class="XCalendar.Forms.Views.DayView"
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xmlns="http://xamarin.com/schemas/2014/forms"
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xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
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xmlns:Converters="clr-namespace:XCalendar.Forms.Converters"
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xmlns:Interfaces="clr-namespace:XCalendar.Forms.Interfaces"
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xmlns:System="clr-namespace:System;assembly=System.Runtime"
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xmlns:xc="clr-namespace:XCalendar.Forms.Views"
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x:Name="DayView_Unique"
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x:DataType="{x:Type xc:DayView}">
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<Label
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CharacterSpacing="{Binding CharacterSpacing, Source={x:Reference DayView_Unique}}"
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FontAttributes="{Binding FontAttributes, Source={x:Reference DayView_Unique}}"
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FontFamily="{Binding FontFamily, Source={x:Reference DayView_Unique}}"
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FontSize="{Binding FontSize, Source={x:Reference DayView_Unique}}"
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FormattedText="{Binding FormattedText, Source={x:Reference DayView_Unique}}"
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HorizontalTextAlignment="{Binding HorizontalTextAlignment, Source={x:Reference DayView_Unique}}"
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LineBreakMode="{Binding LineBreakMode, Source={x:Reference DayView_Unique}}"
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LineHeight="{Binding LineHeight, Source={x:Reference DayView_Unique}}"
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MaxLines="{Binding MaxLines, Source={x:Reference DayView_Unique}}"
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Text="{Binding Text, Source={x:Reference DayView_Unique}}"
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TextColor="{Binding TextColor, Source={x:Reference DayView_Unique}}"
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TextDecorations="{Binding TextDecorations, Source={x:Reference DayView_Unique}}"
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TextTransform="{Binding TextTransform, Source={x:Reference DayView_Unique}}"
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TextType="{Binding TextType, Source={x:Reference DayView_Unique}}"
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VerticalTextAlignment="{Binding VerticalTextAlignment, Source={x:Reference DayView_Unique}}"/>
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<Grid RowSpacing="2">
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<Grid.RowDefinitions>
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<RowDefinition Height="1.5*"/>
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<RowDefinition Height="*"/>
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</Grid.RowDefinitions>
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<Label
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Grid.Row="0"
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Grid.RowSpan="2"
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CharacterSpacing="{Binding CharacterSpacing, Source={x:Reference DayView_Unique}}"
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FontAttributes="{Binding FontAttributes, Source={x:Reference DayView_Unique}}"
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FontFamily="{Binding FontFamily, Source={x:Reference DayView_Unique}}"
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FontSize="{Binding FontSize, Source={x:Reference DayView_Unique}}"
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FormattedText="{Binding FormattedText, Source={x:Reference DayView_Unique}}"
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HorizontalTextAlignment="{Binding HorizontalTextAlignment, Source={x:Reference DayView_Unique}}"
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LineBreakMode="{Binding LineBreakMode, Source={x:Reference DayView_Unique}}"
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LineHeight="{Binding LineHeight, Source={x:Reference DayView_Unique}}"
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MaxLines="{Binding MaxLines, Source={x:Reference DayView_Unique}}"
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Text="{Binding Text, Source={x:Reference DayView_Unique}}"
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TextColor="{Binding TextColor, Source={x:Reference DayView_Unique}}"
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TextDecorations="{Binding TextDecorations, Source={x:Reference DayView_Unique}}"
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TextTransform="{Binding TextTransform, Source={x:Reference DayView_Unique}}"
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TextType="{Binding TextType, Source={x:Reference DayView_Unique}}"
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VerticalOptions="Center"
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VerticalTextAlignment="{Binding VerticalTextAlignment, Source={x:Reference DayView_Unique}}"/>
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<ContentView Grid.Row="1" ControlTemplate="{Binding EventsTemplate, Source={x:Reference DayView_Unique}}">
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<StackLayout
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BindableLayout.ItemsSource="{Binding Events, Source={x:Reference DayView_Unique}}"
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HorizontalOptions="Center"
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Orientation="{Binding EventsOrientation, Source={x:Reference DayView_Unique}}"
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Spacing="{Binding EventsSpacing, Source={x:Reference DayView_Unique}}">
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<StackLayout.Resources>
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<System:Boolean x:Key="TrueValue">True</System:Boolean>
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<System:Boolean x:Key="FalseValue">False</System:Boolean>
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<Converters:IsNullOrEmptyConverter x:Key="IsNullOrEmptyConverter"/>
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</StackLayout.Resources>
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<StackLayout.Style>
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<Style TargetType="{x:Type StackLayout}">
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<Setter Property="BindableLayout.ItemTemplate">
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<Setter.Value>
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<DataTemplate x:DataType="{x:Type Interfaces:IEvent}">
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<Rectangle
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Fill="{Binding Color}"
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HeightRequest="{Binding EventHeightRequest, Source={x:Reference DayView_Unique}}"
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HorizontalOptions="CenterAndExpand"
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RadiusX="{Binding EventCornerRadius, Source={x:Reference DayView_Unique}}"
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RadiusY="{Binding EventCornerRadius, Source={x:Reference DayView_Unique}}"
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VerticalOptions="Center"
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WidthRequest="{Binding EventWidthRequest, Source={x:Reference DayView_Unique}}"/>
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</DataTemplate>
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</Setter.Value>
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</Setter>
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<Style.Triggers>
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<DataTrigger
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Binding="{Binding EventTemplate, Source={x:Reference DayView_Unique}, Converter={StaticResource IsNullOrEmptyConverter}}"
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TargetType="{x:Type StackLayout}"
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Value="{StaticResource FalseValue}">
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<Setter Property="BindableLayout.ItemTemplate" Value="{Binding EventTemplate, Source={x:Reference DayView_Unique}}"/>
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</DataTrigger>
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<DataTrigger
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Binding="{Binding IsCurrentMonth, Source={x:Reference DayView_Unique}}"
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TargetType="{x:Type StackLayout}"
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Value="{StaticResource FalseValue}">
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<Setter Property="IsVisible" Value="False"/>
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</DataTrigger>
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<DataTrigger
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Binding="{Binding IsInvalid, Source={x:Reference DayView_Unique}}"
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TargetType="{x:Type StackLayout}"
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Value="{StaticResource TrueValue}">
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<Setter Property="IsVisible" Value="False"/>
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</DataTrigger>
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</Style.Triggers>
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</Style>
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</StackLayout.Style>
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</StackLayout>
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</ContentView>
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</Grid>
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<ContentView.GestureRecognizers>
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<TapGestureRecognizer Command="{Binding Command, Source={x:Reference DayView_Unique}}" CommandParameter="{Binding CommandParameter, Source={x:Reference DayView_Unique}}"/>

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