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comparison Source/ComponentModel/Design/GetTypeDialog.cs @ 0:f990fcb411a9

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Копия текущей версии из github
author cin
date Thu, 27 Mar 2014 21:46:09 +0400
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-1:000000000000 0:f990fcb411a9
1 using System;
2 using System.Collections;
3 using System.Collections.Generic;
4 using System.ComponentModel.Design;
5 using System.Diagnostics;
6 using System.Reflection;
7 using System.Windows.Forms;
8
9 namespace BLToolkit.ComponentModel.Design
10 {
11 public partial class GetTypeDialog : Form
12 {
13 public GetTypeDialog(IServiceProvider serviceProvider, Type baseType, Predicate<Type> filter)
14 {
15 _serviceProvider = serviceProvider;
16 _baseType = baseType;
17 _filter = filter;
18
19 InitializeComponent();
20
21 LoadTypes();
22 }
23
24 private readonly IServiceProvider _serviceProvider;
25 private readonly Type _baseType;
26 private readonly Predicate<Type> _filter;
27
28 private Type _resultType;
29 public Type ResultType
30 {
31 get { return _resultType; }
32 }
33
34 delegate TypePicker.TypeNode GetTypeNode(Type t);
35
36 private void LoadTypes()
37 {
38 Cursor = Cursors.WaitCursor;
39
40 try
41 {
42 _treeView.Nodes.Clear();
43
44 var assemblyNodes = new Dictionary<Assembly, TreeNode>();
45 var namespaceNodes = new Dictionary<string, TreeNode>();
46 var typeNodes = new Dictionary<Type, TypePicker.TypeNode>();
47 var service = (ITypeDiscoveryService)_serviceProvider.GetService(typeof(ITypeDiscoveryService));
48 var cTypes = service.GetTypes(_baseType, _systemCheckBox.Checked);
49 var types = new List<Type>(cTypes.Count);
50
51 foreach (Type type in cTypes)
52 types.Add(type);
53
54 types.Sort((a, b) =>
55 a.Assembly == b.Assembly ?
56 string.Compare(a.FullName, b.FullName) :
57 string.Compare(a.Assembly.FullName, b.Assembly.FullName));
58
59 foreach (var type in types)
60 {
61 if (_filter != null && _filter(type) == false)
62 continue;
63
64 var assembly = type.Assembly;
65
66 TreeNode assemblyNode;
67
68 if (!assemblyNodes.TryGetValue(assembly, out assemblyNode))
69 {
70 assemblyNodes[assembly] = assemblyNode =
71 _treeView.Nodes.Add(assembly.FullName, assembly.GetName().Name, 1, 1);
72 }
73
74 var @namespace = type.Namespace ?? string.Empty;
75 var namespaceKey = assembly.FullName + ", " + @namespace;
76
77 TreeNode namespaceNode;
78
79 if (!namespaceNodes.TryGetValue(namespaceKey, out namespaceNode))
80 {
81 namespaceNodes[namespaceKey] = namespaceNode =
82 assemblyNode.Nodes.Add(namespaceKey, @namespace, 2, 2);
83 }
84
85 GetTypeNode getTypeNode = null; getTypeNode = t =>
86 {
87 TypePicker.TypeNode node;
88
89 if (typeNodes.TryGetValue(t, out node))
90 return node;
91
92 if (t.DeclaringType == null)
93 {
94 namespaceNode.Nodes.Add(node = new TypePicker.TypeNode(t.Name, t, false));
95 }
96 else
97 {
98 TreeNode parent = getTypeNode(t.DeclaringType);
99
100 parent.Nodes.Add(node = new TypePicker.TypeNode(t.Name, t, false));
101 }
102
103 typeNodes.Add(t, node);
104
105 return node;
106 };
107
108 getTypeNode(type).IsSelectable = true;
109 }
110 }
111 catch (Exception ex)
112 {
113 Debug.WriteLine(ex.Message);
114 }
115 finally
116 {
117 Cursor = Cursors.Default;
118 }
119 }
120
121 private void systemCheckBox_CheckedChanged(object sender, EventArgs e)
122 {
123 LoadTypes();
124 }
125
126 private void treeView_AfterSelect(object sender, TreeViewEventArgs e)
127 {
128 var node = e.Node as TypePicker.TypeNode;
129
130 _resultType = node != null && node.IsSelectable? node.Type: null;
131
132 _okButton.Enabled = _resultType != null;
133 }
134
135 private void treeView_DoubleClick(object sender, EventArgs e)
136 {
137 _okButton.PerformClick();
138 }
139
140 }
141 }