| | | 1 | | // ----------------------------------------------------------------------- |
| | | 2 | | // <copyright file="ColumnOptionsViewModel.cs" company="Stéphane ANDRE"> |
| | | 3 | | // Copyright (c) Stéphane ANDRE. All rights reserved. |
| | | 4 | | // </copyright> |
| | | 5 | | // ----------------------------------------------------------------------- |
| | | 6 | | |
| | | 7 | | using System; |
| | | 8 | | using System.Collections.Generic; |
| | | 9 | | using System.Collections.ObjectModel; |
| | | 10 | | |
| | | 11 | | namespace MyNet.UI.ViewModels.Display.Options; |
| | | 12 | | |
| | | 13 | | /// <summary> |
| | | 14 | | /// Represents configurable column options for list display mode. |
| | | 15 | | /// </summary> |
| | | 16 | | public sealed class ColumnOptionsViewModel : ObservableCollection<DisplayColumnOptionViewModel> |
| | | 17 | | { |
| | | 18 | | private readonly HashSet<string>? _defaultVisibleColumns; |
| | | 19 | | |
| | | 20 | | /// <summary> |
| | | 21 | | /// Initializes a new instance of the <see cref="ColumnOptionsViewModel"/> class. |
| | | 22 | | /// </summary> |
| | | 23 | | /// <param name="defaultVisibleColumns">Optional default visible column identifiers.</param> |
| | 9 | 24 | | public ColumnOptionsViewModel(IEnumerable<string>? defaultVisibleColumns = null) |
| | | 25 | | { |
| | 9 | 26 | | if (defaultVisibleColumns is not null) |
| | 0 | 27 | | _defaultVisibleColumns = new(defaultVisibleColumns, StringComparer.Ordinal); |
| | 9 | 28 | | } |
| | | 29 | | |
| | | 30 | | /// <summary> |
| | | 31 | | /// Occurs when the list consumer should refresh column rendering. |
| | | 32 | | /// </summary> |
| | | 33 | | public event EventHandler? RefreshRequested; |
| | | 34 | | |
| | | 35 | | /// <summary> |
| | | 36 | | /// Resets all options and reapplies default visible columns when provided. |
| | | 37 | | /// </summary> |
| | | 38 | | public void Reset() |
| | | 39 | | { |
| | 0 | 40 | | foreach (var item in this) |
| | 0 | 41 | | item.Reset(); |
| | | 42 | | |
| | 0 | 43 | | if (_defaultVisibleColumns is not null) |
| | 0 | 44 | | SetDisplayedColumns(_defaultVisibleColumns); |
| | | 45 | | |
| | 0 | 46 | | RequestRefresh(); |
| | 0 | 47 | | } |
| | | 48 | | |
| | | 49 | | /// <summary> |
| | | 50 | | /// Sets visible columns by identifier. |
| | | 51 | | /// </summary> |
| | | 52 | | /// <param name="columns">Identifiers to display.</param> |
| | | 53 | | public void SetDisplayedColumns(IEnumerable<string> columns) |
| | | 54 | | { |
| | 3 | 55 | | var displayed = new HashSet<string>(columns, StringComparer.Ordinal); |
| | | 56 | | |
| | 18 | 57 | | foreach (var item in this) |
| | 6 | 58 | | item.IsVisible = !item.CanBeHidden || displayed.Contains(item.Identifier); |
| | 3 | 59 | | } |
| | | 60 | | |
| | | 61 | | /// <summary> |
| | | 62 | | /// Requests a visual refresh after column changes. |
| | | 63 | | /// </summary> |
| | 0 | 64 | | public void RequestRefresh() => RefreshRequested?.Invoke(this, EventArgs.Empty); |
| | | 65 | | } |
| | | 66 | | |