Завершение обновления формы отображения

2025-05-05 14:34:56 +04:00
parent c704bc551b
commit 2c1756cef6
14 changed files with 450 additions and 430 deletions
@@ -0,0 +1,271 @@
+using System.ComponentModel;
+using System.Diagnostics.CodeAnalysis;
+using Pf2eModel;
+using Pf2eModel.Model.Base;
+using Pf2eModel.Model.Common.I18n;
+using Pf2eModel.Model.Enum;
+using Timer = System.Windows.Forms.Timer;
+
+namespace Pf2eViewer.DatabaseViewer;
+
+public partial class DatabaseViewerControl : UserControl
+{
+    public readonly Pf2eDbContext Context = new();
+
+    [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+    public int PerPage
+    {
+        get => _perPage;
+        set
+        {
+            _perPage = value;
+            UpdateView();
+        }
+    }
+    private int _perPage = 30;
+
+    [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+    public int Page
+    {
+        get => _page;
+        set
+        {
+            _page = value;
+            UpdateView();
+        }
+    }
+    private int _page = 1;
+
+    [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+    public EntityType Type
+    {
+        get => _type;
+        set
+        {
+            _page = 1;
+            _type = value;
+            UpdateView();
+        }
+    }
+    private EntityType _type;
+
+    [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+    public int Count { get; private set; }
+
+    public int MaxPage => Convert.ToInt32(Math.Ceiling(1.0 * Count / PerPage));
+
+    [AllowNull]
+    [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+    public EntityView CurrentEntity { get; private set; }
+
+    private bool _isBusy = true;
+
+    private DatabaseQueryPerformer? _performer;
+
+    private Timer? _typingTimer;
+
+    private string _lastSearch = "";
+
+    public DatabaseViewerControl()
+    {
+        InitializeComponent();
+
+        BindingNavigator.BindingSource = DbBindingSource;
+        //DataGridView.AutoGenerateColumns = true;
+        DataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+
+        _isBusy = false;
+    }
+
+    // Control events
+
+    private void BindingNavigator_RefreshItems(object sender, EventArgs e)
+    {
+        if (_isBusy)
+        {
+            return;
+        }
+
+        Page = (int)(BindingNavigator?.BindingSource?.Current ?? 1);
+        UpdateView();
+    }
+
+    private void DataGridView_RowStateChanged(object sender, DataGridViewRowStateChangedEventArgs e)
+    {
+        if (_isBusy)
+        {
+            return;
+        }
+
+        UpdateEntity();
+    }
+
+    private void SearchTextBox_Leave(object sender, EventArgs e)
+    {
+        if (_isBusy || SearchTextBox.Text == _lastSearch)
+        {
+            return;
+        }
+
+        UpdateView();
+    }
+
+    private void SearchTextBox_TextChanged(object sender, EventArgs e)
+    {
+        if (_isBusy)
+        {
+            return;
+        }
+
+        if (_typingTimer == null)
+        {
+            _typingTimer = new();
+            _typingTimer.Interval = 3000;
+            _typingTimer.Tick += HandleTypingTimerTimeout;
+        }
+        _typingTimer.Stop(); // Resets the timer
+        _typingTimer.Tag = (sender as TextBox)!.Text; // This should be done with EventArgs
+        _typingTimer.Start();
+    }
+
+    private void HandleTypingTimerTimeout(object? sender, EventArgs e)
+    {
+        if (_isBusy || sender is not Timer timer)
+        {
+            return;
+        }
+
+        UpdateView();
+        timer.Stop();
+    }
+
+    // Updater
+
+    private void SetBusyStatus(bool busy)
+    {
+        if (InvokeRequired)
+        {
+            Invoke(SetBusyStatus, busy);
+            return;
+        }
+
+        _isBusy = busy;
+
+        BindingNavigator.Enabled = !busy;
+        DataGridView.Enabled = !busy;
+        SearchTextBox.Enabled = !busy;
+
+        DataGridView.ColumnHeadersHeightSizeMode = !busy
+            ? DataGridViewColumnHeadersHeightSizeMode.AutoSize
+            : DataGridViewColumnHeadersHeightSizeMode.DisableResizing;
+    }
+
+    public void UpdateView(bool force = false)
+    {
+        if (_isBusy && !force)
+        {
+            return;
+        }
+
+        SetBusyStatus(true);
+
+        _performer?.Abort();
+
+        _performer = new()
+        {
+            Type = Type,
+            Page = Page,
+            PerPage = PerPage,
+            Search = SearchTextBox.Text,
+        };
+
+        _performer.OnQueryCompleted += HandleQueryCompleted;
+
+        _performer.Query();
+    }
+
+    private void HandleQueryCompleted(DatabaseQueryPerformer sender, DatabaseQueryResult result)
+    {
+        if (sender != _performer)
+        {
+            return;
+        }
+
+        Count = result.Count;
+        _lastSearch = SearchTextBox.Text;
+
+        InvokeControl(
+            BindingNavigator,
+            b =>
+            {
+                PagesBindingSource.DataSource = Enumerable.Range(1, MaxPage).ToList();
+                b.BindingSource = PagesBindingSource;
+            }
+        );
+
+        InvokeControl(
+            DataGridView,
+            view =>
+            {
+                view.DataSource = result.Entities.Select(e => new EntityGridRow(e)).ToList();
+
+                SetBusyStatus(false);
+
+                if (view.Rows.Count > 0)
+                {
+                    view.Rows[0].Selected = true;
+                    UpdateEntity();
+                }
+            }
+        );
+    }
+
+    private void InvokeControl<T>(T control, Action<T> action)
+        where T : Control
+    {
+        if (control.InvokeRequired)
+        {
+            control.Invoke(action, control);
+        }
+        else
+        {
+            action(control);
+        }
+    }
+
+    private void UpdateEntity()
+    {
+        if (DataGridView.SelectedRows.Count == 0)
+        {
+            return;
+        }
+
+        EntityGridRow? data = (EntityGridRow?)DataGridView.SelectedRows[0].DataBoundItem;
+
+        try
+        {
+            CurrentEntity = data is not null ? new(Context, Type, data.Id) : null;
+        }
+        catch (Exception)
+        {
+            // ignored
+        }
+
+        EntityChange?.Invoke(CurrentEntity);
+    }
+
+    // Output events
+
+    public delegate void EntityChangeHandler(EntityView newEntity);
+
+    public event EntityChangeHandler? EntityChange;
+
+    internal class EntityGridRow(Entity e)
+    {
+        public int Id { get; set; } = e.Id;
+
+        public string Name { get; set; } = e.Name[LocaleType.English];
+
+        public EntityRarity Rarity { get; set; } = e.Rarity;
+    }
+}