350 lines
13 KiB
C#
350 lines
13 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Linq;
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using System.Reflection;
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using CycleGUI;
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using Newtonsoft.Json;
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using StandardScene.Utils;
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namespace StandardScene.Signal.Ui
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{
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/// <summary>
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/// 按 Model 的 <see cref="DisplayNameAttribute"/> 反射生成可增删改列表（CycleGUI）。
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/// 跳过 <see cref="BrowsableAttribute.Browsable"/> = false 与 <see cref="JsonIgnoreAttribute"/>。
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/// </summary>
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public static class ModelListPanel<T> where T : class, new()
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{
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private static Panel _panel;
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private static List<T> _items = new List<T>();
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private static int _selected = -1;
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private static string _status = "";
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private static string _title = "";
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private static string _path = "";
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private static Func<T, string> _keySelector = _ => "";
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private static readonly Dictionary<string, string> Text = new Dictionary<string, string>();
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private static readonly Dictionary<string, bool> Bools = new Dictionary<string, bool>();
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private static readonly Dictionary<string, int> EnumIdx = new Dictionary<string, int>();
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private static PropertyInfo[] Props => _props ??= Discover();
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private static PropertyInfo[] _props;
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public static void Open(string title, string path, Func<T, string> keySelector)
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{
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if (_panel != null)
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{
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try { _panel.BringToFront(); return; }
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catch { _panel = null; }
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}
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_title = title;
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_path = path;
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_keySelector = keySelector ?? (_ => "");
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_items = SignalConfigStore.Load<T>(path);
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_selected = -1;
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_status = $"已加载 {_items.Count} 条 · {_path}";
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ClearEditor();
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var typeKey = typeof(T).Name;
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var panel = GUI.DeclarePanel()
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.ShowTitle(title)
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.SetDefaultDocking(Panel.Docking.None)
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.InitSize(1100, 720)
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.InitPos(false, 0, 0, 0.5f, 0.5f, 0.5f, 0.5f);
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_panel = panel;
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panel.IfTerminalQuit(() => { if (_panel == panel) _panel = null; });
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panel.Define(pb =>
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{
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if (pb.Closing())
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{
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SignalConfigStore.Save(_path, _items);
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panel.Exit();
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_panel = null;
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return;
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}
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var headers = Props.Select(DisplayOf).Concat(new[] { "行操作" }).ToArray();
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pb.SeparatorText($"列表（{_items.Count}）");
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pb.Table($"model-list-{typeKey}", headers, _items.Count, (row, i) =>
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{
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var item = _items[i];
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foreach (var p in Props)
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row.Label(FormatCell(p.GetValue(item)));
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if (row.ButtonGroup(new[] { "选择" }, new[] { "选择该行" }) == 0)
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{
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_selected = i;
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LoadEditor(item);
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}
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}, height: 10, enableSearch: true);
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pb.SeparatorText(_selected >= 0 ? $"编辑第 {_selected + 1} 行" : "编辑（未选中则「添加」写入新行）");
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DrawEditor(pb);
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if (pb.Button("添加", distinct: $"ml-{typeKey}-add")) Add();
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pb.SameLine(8);
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if (pb.Button("保存当前行", distinct: $"ml-{typeKey}-save")) SaveRow();
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pb.SameLine(8);
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if (pb.Button("删除当前行", distinct: $"ml-{typeKey}-del")) ConfirmDelete();
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pb.SameLine(8);
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if (pb.Button("清空编辑区", distinct: $"ml-{typeKey}-clear"))
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{
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_selected = -1;
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ClearEditor();
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_status = "已清空编辑区，可添加新行";
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}
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if (!string.IsNullOrEmpty(_status))
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{
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pb.Separator();
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pb.Label(_status);
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}
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});
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}
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private static PropertyInfo[] Discover()
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{
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return typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance)
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.Where(p => p.CanRead && p.CanWrite && p.GetIndexParameters().Length == 0)
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.Where(p => p.GetCustomAttribute<BrowsableAttribute>()?.Browsable != false)
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.Where(p => p.GetCustomAttribute<JsonIgnoreAttribute>() == null)
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.OrderBy(p => p.MetadataToken)
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.ToArray();
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}
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private static string DisplayOf(PropertyInfo p) =>
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p.GetCustomAttribute<DisplayNameAttribute>()?.DisplayName ?? p.Name;
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private static string FormatCell(object value)
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{
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if (value == null) return "";
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if (value is bool b) return b ? "是" : "否";
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return Convert.ToString(value) ?? "";
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}
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private static void DrawEditor(PanelBuilder pb)
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{
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for (var i = 0; i < Props.Length; i++)
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{
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var p = Props[i];
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var label = $"{i + 1}. {DisplayOf(p)}";
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var type = p.PropertyType;
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if (type == typeof(bool))
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{
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if (!Bools.ContainsKey(p.Name)) Bools[p.Name] = false;
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var v = Bools[p.Name];
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pb.CheckBox(label, ref v);
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Bools[p.Name] = v;
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}
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else if (type.IsEnum)
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{
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var names = Enum.GetNames(type);
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if (names.Length == 0) continue;
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if (!EnumIdx.ContainsKey(p.Name)) EnumIdx[p.Name] = 0;
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var idx = EnumIdx[p.Name];
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if (idx < 0 || idx >= names.Length) idx = 0;
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pb.DropdownBox(label, names, ref idx);
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EnumIdx[p.Name] = idx;
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}
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else
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{
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if (!Text.ContainsKey(p.Name)) Text[p.Name] = "";
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var (text, _) = pb.TextInput(label, Text[p.Name], alwaysReturnString: true);
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Text[p.Name] = text ?? "";
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}
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}
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}
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private static void LoadEditor(T item)
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{
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foreach (var p in Props)
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{
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var value = p.GetValue(item);
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if (p.PropertyType == typeof(bool))
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Bools[p.Name] = value is true;
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else if (p.PropertyType.IsEnum)
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{
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var names = Enum.GetNames(p.PropertyType);
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var name = value?.ToString() ?? names.FirstOrDefault() ?? "";
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var idx = Array.IndexOf(names, name);
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EnumIdx[p.Name] = idx >= 0 ? idx : 0;
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}
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else
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Text[p.Name] = value == null ? "" : Convert.ToString(value) ?? "";
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}
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}
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private static void ClearEditor()
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{
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Text.Clear();
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Bools.Clear();
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EnumIdx.Clear();
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foreach (var p in Props)
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{
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if (p.PropertyType == typeof(bool))
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Bools[p.Name] = false;
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else if (p.PropertyType.IsEnum)
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EnumIdx[p.Name] = 0;
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else if (p.PropertyType == typeof(int) || p.PropertyType == typeof(byte) || p.PropertyType == typeof(ushort))
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Text[p.Name] = "0";
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else
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Text[p.Name] = DefaultText(p);
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}
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}
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private static string DefaultText(PropertyInfo p)
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{
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try
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{
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var fresh = new T();
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var v = p.GetValue(fresh);
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return v == null ? "" : Convert.ToString(v) ?? "";
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}
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catch
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{
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return "";
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}
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}
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private static bool TryBuild(out T item, out string err)
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{
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item = new T();
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err = "";
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foreach (var p in Props)
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{
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try
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{
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object boxed;
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if (p.PropertyType == typeof(bool))
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boxed = Bools.TryGetValue(p.Name, out var b) && b;
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else if (p.PropertyType.IsEnum)
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{
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var names = Enum.GetNames(p.PropertyType);
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var idx = EnumIdx.TryGetValue(p.Name, out var e) ? e : 0;
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if (idx < 0 || idx >= names.Length) idx = 0;
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boxed = Enum.Parse(p.PropertyType, names[idx]);
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}
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else if (p.PropertyType == typeof(int))
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{
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var raw = Text.TryGetValue(p.Name, out var t) ? t : "0";
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if (!int.TryParse(string.IsNullOrWhiteSpace(raw) ? "0" : raw.Trim(), out var n))
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{
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err = $"{DisplayOf(p)} 必须是整数";
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return false;
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}
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boxed = n;
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}
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else if (p.PropertyType == typeof(ushort))
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{
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var raw = Text.TryGetValue(p.Name, out var t) ? t : "0";
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if (!ushort.TryParse(string.IsNullOrWhiteSpace(raw) ? "0" : raw.Trim(), out var n))
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{
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err = $"{DisplayOf(p)} 必须是 0-65535";
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return false;
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}
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boxed = n;
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}
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else if (p.PropertyType == typeof(byte))
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{
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var raw = Text.TryGetValue(p.Name, out var t) ? t : "0";
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if (!byte.TryParse(string.IsNullOrWhiteSpace(raw) ? "0" : raw.Trim(), out var n))
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{
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err = $"{DisplayOf(p)} 必须是 0-255";
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return false;
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}
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boxed = n;
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}
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else
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boxed = Text.TryGetValue(p.Name, out var s) ? s ?? "" : "";
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p.SetValue(item, boxed);
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}
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catch (Exception ex)
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{
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err = $"{DisplayOf(p)} 写入失败：{ex.Message}";
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return false;
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}
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}
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var key = (_keySelector(item) ?? "").Trim();
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if (string.IsNullOrEmpty(key))
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{
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err = "主键不能为空";
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return false;
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}
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return true;
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}
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private static void Add()
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{
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if (!TryBuild(out var item, out var err))
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{
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CycleUiHelper.Alert("错误", err);
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return;
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}
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var key = _keySelector(item);
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if (_items.Any(x => string.Equals(_keySelector(x), key, StringComparison.OrdinalIgnoreCase)))
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{
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CycleUiHelper.Alert("错误", $"主键「{key}」已存在");
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return;
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}
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_items.Add(item);
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_selected = _items.Count - 1;
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SignalConfigStore.Save(_path, _items);
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_status = $"已添加 {key}";
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_panel?.Repaint();
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}
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private static void SaveRow()
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{
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if (_selected < 0 || _selected >= _items.Count)
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{
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CycleUiHelper.Alert("提示", "请先选择要保存的行，或用「添加」写入新行");
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return;
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}
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if (!TryBuild(out var item, out var err))
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{
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CycleUiHelper.Alert("错误", err);
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return;
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}
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var key = _keySelector(item);
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if (_items.Where((_, i) => i != _selected)
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.Any(x => string.Equals(_keySelector(x), key, StringComparison.OrdinalIgnoreCase)))
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{
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CycleUiHelper.Alert("错误", $"主键「{key}」已存在");
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return;
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}
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_items[_selected] = item;
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SignalConfigStore.Save(_path, _items);
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_status = $"已保存 {key}";
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CycleUiHelper.Alert("提示", "保存成功");
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_panel?.Repaint();
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}
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private static void ConfirmDelete()
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{
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if (_selected < 0 || _selected >= _items.Count)
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{
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CycleUiHelper.Alert("提示", "请先选择要删除的行");
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return;
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}
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var key = _keySelector(_items[_selected]);
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CycleUiHelper.ConfirmThen($"删除「{key}」？", () =>
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{
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_items.RemoveAt(_selected);
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_selected = -1;
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ClearEditor();
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SignalConfigStore.Save(_path, _items);
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_status = $"已删除 {key}";
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_panel?.Repaint();
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});
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}
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}
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}
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