using Bro.Common.Interface;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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namespace Bro.UI.Model.Winform
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{
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public static class MenuFormFactory
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{
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const string DLLPATTERN = "Bro.*.dll";
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private static Dictionary<MenuNodeAttribute, Type> menuFrmTypeDict = null;
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public static Dictionary<MenuNodeAttribute, Type> MenuFrmTypeDict
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{
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get
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{
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if (menuFrmTypeDict == null)
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{
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var assm = new DirectoryInfo(AppDomain.CurrentDomain.BaseDirectory).GetFiles(DLLPATTERN).Select(u => Assembly.LoadFrom(u.FullName)).ToList();
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assm.AddRange(AppDomain.CurrentDomain.GetAssemblies());
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assm = assm.Distinct().ToList();
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//var types = assm.SelectMany(a => a.GetTypes());
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menuFrmTypeDict = assm.SelectMany(a => a.GetTypes())
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.Where(t =>
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{
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if (t.GetInterfaces().Contains(typeof(IMenuNode)))
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{
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var attr = t.GetCustomAttribute<MenuNodeAttribute>();
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return attr != null;
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}
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else
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{
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return false;
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}
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}).ToDictionary(t => t.GetCustomAttribute<MenuNodeAttribute>(), t => t);
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}
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return menuFrmTypeDict;
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}
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}
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public static MenuFrmBase GetMenuFrm(string frmCode)
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{
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Type frmType = GetMenuFrmType(frmCode);
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if (frmType == null)
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{
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return null;
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}
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var menu = Activator.CreateInstance(frmType) as MenuFrmBase;
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menu.Tag = frmCode;
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return menu;
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}
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public static Type GetMenuFrmType(string frmCode)
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{
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Type frmType = null;
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foreach (KeyValuePair<MenuNodeAttribute, Type> pair in MenuFrmTypeDict)
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{
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if (pair.Key.MenuCode == frmCode)
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{
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frmType = pair.Value;
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break;
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}
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}
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return frmType;
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}
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}
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}
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