1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using System;
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23 | using System.Collections;
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24 | using System.Collections.Generic;
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25 | using System.Drawing;
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26 | using System.Linq;
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27 | using System.Windows.Forms;
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28 | using HeuristicLab.Common;
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29 | using HeuristicLab.Common.Resources;
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30 | using HeuristicLab.Core;
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31 | using HeuristicLab.PluginInfrastructure;
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32 |
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33 | namespace HeuristicLab.Optimizer {
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34 | internal partial class NewItemDialog : Form {
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35 | private bool isInitialized;
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36 |
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37 | private readonly List<TreeNode> treeNodes;
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38 | private string currentSearchString;
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39 |
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40 | private Type selectedType;
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41 | public Type SelectedType {
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42 | get { return selectedType; }
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43 | private set {
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44 | if (value != selectedType) {
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45 | selectedType = value;
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46 | OnSelectedTypeChanged();
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47 | }
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48 | }
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49 | }
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50 |
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51 | private IItem item;
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52 | public IItem Item {
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53 | get { return item; }
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54 | }
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55 |
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56 | public NewItemDialog() {
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57 | InitializeComponent();
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58 | treeNodes = new List<TreeNode>();
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59 | currentSearchString = string.Empty;
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60 | item = null;
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61 | SelectedTypeChanged += this_SelectedTypeChanged;
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62 | }
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63 |
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64 | private void NewItemDialog_Load(object sender, EventArgs e) {
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65 | if (isInitialized) return;
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66 |
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67 | // Sorted by hasOrdering to create category nodes first with concrete ordering.
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68 | // Items with categoryname without ordering are inserted afterwards correctly
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69 | var categories =
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70 | from type in ApplicationManager.Manager.GetTypes(typeof(IItem))
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71 | where CreatableAttribute.IsCreatable(type)
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72 | let category = CreatableAttribute.GetCategory(type)
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73 | let hasOrdering = category.Contains(CreatableAttribute.Categories.OrderToken)
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74 | let name = ItemAttribute.GetName(type)
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75 | let priority = CreatableAttribute.GetPriority(type)
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76 | let version = ItemAttribute.GetVersion(type)
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77 | orderby category, hasOrdering descending, priority, name, version ascending
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78 | group type by category into categoryGroup
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79 | select categoryGroup;
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80 |
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81 | var rootNode = CreateCategoryTree(categories);
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82 | CreateItemNodes(rootNode, categories);
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83 |
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84 | foreach (TreeNode topNode in rootNode.Nodes)
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85 | treeNodes.Add(topNode);
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86 | foreach (var node in treeNodes)
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87 | typesTreeView.Nodes.Add((TreeNode)node.Clone());
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88 |
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89 | typesTreeView.TreeViewNodeSorter = new ItemTreeNodeComparer();
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90 | typesTreeView.Sort();
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91 |
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92 | isInitialized = true;
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93 | }
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94 |
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95 | #region Create Tree
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96 | private TreeNode CreateCategoryTree(IEnumerable<IGrouping<string, Type>> categories) {
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97 | imageList.Images.Add(VSImageLibrary.Class); // default icon
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98 | imageList.Images.Add(VSImageLibrary.Namespace); // plugins
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99 |
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100 | var rootNode = new TreeNode();
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101 |
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102 | // CategoryNode
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103 | // Tag: raw string, used for sorting, e.g. 1$Algorithms###2$Single Solution
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104 | // Name: full name = combined category name with parent categories, used for finding nodes in tree, e.g. Algorithms###Single Solution
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105 | // Text: category name, used for displaying on node itself, e.g. Single Solution
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106 |
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107 | foreach (var category in categories) {
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108 | var rawName = category.Key;
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109 | string fullName = CreatableAttribute.Categories.GetFullName(rawName);
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110 | string name = CreatableAttribute.Categories.GetName(rawName);
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111 |
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112 | // Skip categories with same full name because the raw name can still be different (missing order)
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113 | if (rootNode.Nodes.Find(fullName, true).Length > 0)
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114 | continue;
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115 |
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116 | var categoryNode = new TreeNode(name, 1, 1) {
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117 | Name = fullName,
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118 | Tag = rawName
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119 | };
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120 |
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121 | var parents = CreatableAttribute.Categories.GetParentRawNames(rawName);
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122 | var parentNode = FindOrCreateParentNode(rootNode, parents);
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123 | if (parentNode != null)
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124 | parentNode.Nodes.Add(categoryNode);
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125 | else
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126 | rootNode.Nodes.Add(categoryNode);
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127 | }
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128 |
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129 | return rootNode;
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130 | }
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131 | private TreeNode FindOrCreateParentNode(TreeNode node, IEnumerable<string> rawParentNames) {
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132 | TreeNode parentNode = null;
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133 | string rawName = null;
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134 | foreach (string rawParentName in rawParentNames) {
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135 | rawName = rawName == null ? rawParentName : rawName + CreatableAttribute.Categories.SplitToken + rawParentName;
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136 | var fullName = CreatableAttribute.Categories.GetFullName(rawName);
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137 | parentNode = node.Nodes.Find(fullName, false).SingleOrDefault();
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138 | if (parentNode == null) {
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139 | var name = CreatableAttribute.Categories.GetName(rawName);
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140 | parentNode = new TreeNode(name, 1, 1) {
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141 | Name = fullName,
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142 | Tag = rawName
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143 | };
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144 | node.Nodes.Add(parentNode);
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145 | }
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146 | node = parentNode;
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147 | }
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148 | return parentNode;
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149 | }
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150 | private void CreateItemNodes(TreeNode node, IEnumerable<IGrouping<string, Type>> categories) {
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151 | foreach (var category in categories) {
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152 | var fullName = CreatableAttribute.Categories.GetFullName(category.Key);
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153 | var categoryNode = node.Nodes.Find(fullName, true).Single();
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154 | foreach (var creatable in category) {
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155 | var itemNode = CreateItemNode(creatable);
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156 | itemNode.Name = itemNode.Name + ":" + fullName;
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157 | categoryNode.Nodes.Add(itemNode);
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158 | }
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159 | }
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160 | }
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161 | private TreeNode CreateItemNode(Type creatable) {
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162 | string name = ItemAttribute.GetName(creatable);
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163 |
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164 | var itemNode = new TreeNode(name) {
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165 | ImageIndex = 0,
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166 | Tag = creatable,
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167 | Name = name
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168 | };
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169 |
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170 | var image = ItemAttribute.GetImage(creatable);
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171 | if (image != null) {
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172 | imageList.Images.Add(image);
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173 | itemNode.ImageIndex = imageList.Images.Count - 1;
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174 | }
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175 | itemNode.SelectedImageIndex = itemNode.ImageIndex;
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176 |
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177 | return itemNode;
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178 | }
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179 | #endregion
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180 |
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181 | private void NewItemDialog_Shown(object sender, EventArgs e) {
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182 | Reset();
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183 | }
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184 |
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185 | public virtual void Filter(string searchString) {
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186 | if (InvokeRequired) {
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187 | Invoke(new Action<string>(Filter), searchString);
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188 | } else {
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189 | searchString = searchString.ToLower();
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190 | var selectedNode = typesTreeView.SelectedNode;
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191 |
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192 | if (!searchString.Contains(currentSearchString)) {
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193 | typesTreeView.BeginUpdate();
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194 | // expand search -> restore all tree nodes
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195 | typesTreeView.Nodes.Clear();
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196 | foreach (TreeNode node in treeNodes)
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197 | typesTreeView.Nodes.Add((TreeNode)node.Clone());
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198 | typesTreeView.EndUpdate();
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199 | }
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200 |
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201 | // remove nodes
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202 | typesTreeView.BeginUpdate();
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203 | var searchTokens = searchString.Split(' ');
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204 | int i = 0;
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205 | while (i < typesTreeView.Nodes.Count) {
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206 | var categoryNode = typesTreeView.Nodes[i];
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207 | bool remove = FilterNode(categoryNode, searchTokens);
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208 | if (remove)
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209 | typesTreeView.Nodes.RemoveAt(i);
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210 | else i++;
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211 | }
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212 | typesTreeView.EndUpdate();
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213 | currentSearchString = searchString;
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214 |
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215 | // select first item
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216 | typesTreeView.BeginUpdate();
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217 | typesTreeView.ExpandAll();
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218 | var firstNode = FirstVisibleNode;
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219 | while (firstNode != null && !(firstNode.Tag is Type))
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220 | firstNode = firstNode.NextVisibleNode;
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221 | if (firstNode != null)
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222 | typesTreeView.SelectedNode = firstNode;
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223 |
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224 | if (typesTreeView.Nodes.Count == 0) {
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225 | SelectedType = null;
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226 | typesTreeView.Enabled = false;
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227 | } else {
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228 | SetTreeNodeVisibility();
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229 | typesTreeView.Enabled = true;
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230 | }
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231 | typesTreeView.EndUpdate();
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232 |
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233 | RestoreSelectedNode(selectedNode);
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234 | UpdateDescription();
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235 | }
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236 | }
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237 |
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238 | private bool FilterNode(TreeNode node, string[] searchTokens) {
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239 | if (node.Tag is string) { // Category node
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240 | var text = node.Text;
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241 | if (searchTokens.Any(token => !text.ToLower().Contains(token))) {
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242 | int i = 0;
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243 | while (i < node.Nodes.Count) {
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244 | bool remove = FilterNode(node.Nodes[i], searchTokens);
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245 | if (remove)
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246 | node.Nodes.RemoveAt(i);
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247 | else i++;
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248 | }
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249 | }
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250 | return node.Nodes.Count == 0;
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251 | }
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252 | if (node.Tag is Type) { // Type node
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253 | var text = node.Text;
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254 | if (searchTokens.Any(searchToken => !text.ToLower().Contains(searchToken))) {
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255 | var typeTag = (Type)node.Tag;
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256 | if (typeTag == SelectedType) {
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257 | SelectedType = null;
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258 | typesTreeView.SelectedNode = null;
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259 | }
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260 | return true;
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261 | }
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262 | return false;
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263 | }
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264 | throw new InvalidOperationException("Encountered neither a category nor a creatable node during tree traversal.");
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265 | }
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266 |
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267 | protected virtual void UpdateDescription() {
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268 | itemDescriptionTextBox.Text = string.Empty;
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269 | pluginDescriptionTextBox.Text = string.Empty;
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270 | pluginTextBox.Text = string.Empty;
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271 | versionTextBox.Text = string.Empty;
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272 |
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273 | if (typesTreeView.SelectedNode != null) {
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274 | var node = typesTreeView.SelectedNode;
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275 | string category = node.Tag as string;
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276 | if (category != null) {
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277 | itemDescriptionTextBox.Text = string.Join(" - ", node.Name.Split(new[] { CreatableAttribute.Categories.SplitToken }, StringSplitOptions.RemoveEmptyEntries));
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278 | }
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279 | Type type = node.Tag as Type;
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280 | if (type != null) {
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281 | string description = ItemAttribute.GetDescription(type);
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282 | var version = ItemAttribute.GetVersion(type);
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283 | var plugin = ApplicationManager.Manager.GetDeclaringPlugin(type);
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284 | if (description != null)
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285 | itemDescriptionTextBox.Text = description;
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286 | if (plugin != null) {
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287 | pluginTextBox.Text = plugin.Name;
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288 | pluginDescriptionTextBox.Text = plugin.Description;
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289 | }
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290 | if (version != null)
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291 | versionTextBox.Text = version.ToString();
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292 | }
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293 | } else if (typesTreeView.Nodes.Count == 0) {
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294 | itemDescriptionTextBox.Text = "No types found";
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295 | }
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296 | }
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297 |
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298 | #region Events
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299 | public event EventHandler SelectedTypeChanged;
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300 | protected virtual void OnSelectedTypeChanged() {
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301 | if (SelectedTypeChanged != null)
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302 | SelectedTypeChanged(this, EventArgs.Empty);
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303 | }
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304 | #endregion
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305 |
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306 | #region Control Events
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307 | protected virtual void searchTextBox_TextChanged(object sender, EventArgs e) {
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308 | Filter(searchTextBox.Text);
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309 | if (string.IsNullOrWhiteSpace(searchTextBox.Text))
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310 | Reset();
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311 | }
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312 |
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313 | protected virtual void itemsTreeView_AfterSelect(object sender, TreeViewEventArgs e) {
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314 | if (typesTreeView.SelectedNode == null) SelectedType = null;
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315 | else SelectedType = typesTreeView.SelectedNode.Tag as Type;
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316 | UpdateDescription();
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317 | }
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318 |
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319 | protected virtual void itemsTreeView_VisibleChanged(object sender, EventArgs e) {
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320 | if (Visible) SetTreeNodeVisibility();
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321 | }
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322 | #endregion
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323 |
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324 | #region Helpers
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325 | private void RestoreSelectedNode(TreeNode selectedNode) {
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326 | if (selectedNode != null) {
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327 | var node = typesTreeView.Nodes.Find(selectedNode.Name, true).SingleOrDefault();
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328 | if (node != null)
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329 | typesTreeView.SelectedNode = node;
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330 | if (typesTreeView.SelectedNode == null)
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331 | SelectedType = null;
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332 | }
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333 | }
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334 | private void SetTreeNodeVisibility() {
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335 | TreeNode selectedNode = typesTreeView.SelectedNode;
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336 | if (string.IsNullOrWhiteSpace(currentSearchString) && (typesTreeView.Nodes.Count > 1)) {
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337 | typesTreeView.CollapseAll();
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338 | if (selectedNode != null) typesTreeView.SelectedNode = selectedNode;
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339 | } else {
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340 | typesTreeView.ExpandAll();
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341 | }
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342 | if (selectedNode != null) {
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343 | typesTreeView.Nodes[0].EnsureVisible(); // scroll top first
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344 | selectedNode.EnsureVisible();
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345 | }
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346 | }
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347 | private void Reset() {
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348 | searchTextBox.Text = string.Empty;
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349 | searchTextBox.Focus();
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350 | SelectedType = null;
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351 | typesTreeView.SelectedNode = null;
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352 | UpdateDescription();
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353 |
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354 | typesTreeView.BeginUpdate();
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355 | typesTreeView.CollapseAll();
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356 | foreach (TreeNode node in typesTreeView.Nodes)
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357 | node.Expand();
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358 | typesTreeView.Nodes[0].EnsureVisible();
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359 | typesTreeView.EndUpdate();
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360 | }
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361 | #endregion
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362 |
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363 | private void okButton_Click(object sender, EventArgs e) {
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364 | if (SelectedType != null) {
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365 | item = (IItem)Activator.CreateInstance(SelectedType);
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366 | DialogResult = DialogResult.OK;
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367 | Close();
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368 | }
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369 | }
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370 | private void itemTreeView_DoubleClick(object sender, EventArgs e) {
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371 | if (SelectedType != null) {
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372 | item = (IItem)Activator.CreateInstance(SelectedType);
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373 | DialogResult = DialogResult.OK;
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374 | Close();
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375 | }
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376 | }
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377 | private void this_SelectedTypeChanged(object sender, EventArgs e) {
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378 | okButton.Enabled = SelectedType != null;
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379 | }
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380 |
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381 | private TreeNode toolStripMenuNode;
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382 | private void typesTreeView_MouseDown(object sender, MouseEventArgs e) {
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383 | if (e.Button == MouseButtons.Right) {
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384 | Point coordinates = typesTreeView.PointToClient(Cursor.Position);
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385 | toolStripMenuNode = typesTreeView.GetNodeAt(coordinates);
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386 |
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387 | if (toolStripMenuNode != null && coordinates.X >= toolStripMenuNode.Bounds.Left &&
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388 | coordinates.X <= toolStripMenuNode.Bounds.Right) {
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389 | typesTreeView.SelectedNode = toolStripMenuNode;
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390 |
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391 | expandToolStripMenuItem.Enabled =
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392 | expandToolStripMenuItem.Visible = !toolStripMenuNode.IsExpanded && toolStripMenuNode.Nodes.Count > 0;
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393 | collapseToolStripMenuItem.Enabled = collapseToolStripMenuItem.Visible = toolStripMenuNode.IsExpanded;
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394 | } else {
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395 | expandToolStripMenuItem.Enabled = expandToolStripMenuItem.Visible = false;
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396 | collapseToolStripMenuItem.Enabled = collapseToolStripMenuItem.Visible = false;
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397 | }
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398 | expandAllToolStripMenuItem.Enabled =
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399 | expandAllToolStripMenuItem.Visible =
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400 | !typesTreeView.Nodes.OfType<TreeNode>().All(x => TreeNodeIsFullyExpanded(x));
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401 | collapseAllToolStripMenuItem.Enabled =
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402 | collapseAllToolStripMenuItem.Visible = typesTreeView.Nodes.OfType<TreeNode>().Any(x => x.IsExpanded);
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403 | if (contextMenuStrip.Items.Cast<ToolStripMenuItem>().Any(item => item.Enabled))
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404 | contextMenuStrip.Show(Cursor.Position);
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405 | }
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406 | }
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407 | private bool TreeNodeIsFullyExpanded(TreeNode node) {
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408 | return (node.Nodes.Count == 0) || (node.IsExpanded && node.Nodes.OfType<TreeNode>().All(x => TreeNodeIsFullyExpanded(x)));
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409 | }
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410 |
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411 | private void expandToolStripMenuItem_Click(object sender, EventArgs e) {
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412 | typesTreeView.BeginUpdate();
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413 | if (toolStripMenuNode != null) toolStripMenuNode.ExpandAll();
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414 | typesTreeView.EndUpdate();
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415 | }
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416 | private void expandAllToolStripMenuItem_Click(object sender, EventArgs e) {
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417 | typesTreeView.BeginUpdate();
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418 | typesTreeView.ExpandAll();
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419 | typesTreeView.EndUpdate();
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420 | }
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421 | private void collapseToolStripMenuItem_Click(object sender, EventArgs e) {
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422 | typesTreeView.BeginUpdate();
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423 | if (toolStripMenuNode != null) toolStripMenuNode.Collapse();
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424 | typesTreeView.EndUpdate();
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425 | }
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426 | private void collapseAllToolStripMenuItem_Click(object sender, EventArgs e) {
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427 | typesTreeView.BeginUpdate();
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428 | typesTreeView.CollapseAll();
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429 | typesTreeView.EndUpdate();
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430 | }
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431 |
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432 | private void clearSearchButton_Click(object sender, EventArgs e) {
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433 | searchTextBox.Text = string.Empty;
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434 | searchTextBox.Focus();
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435 | }
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436 |
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437 | private void searchTextBox_KeyDown(object sender, KeyEventArgs e) {
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438 | if (typesTreeView.Nodes.Count == 0)
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439 | return;
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440 |
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441 | if (e.KeyCode == Keys.Up || e.KeyCode == Keys.Down) {
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442 | var selectedNode = typesTreeView.SelectedNode;
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443 |
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444 | if (selectedNode == null) { // nothing selected => select first
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445 | if (e.KeyCode == Keys.Down) typesTreeView.SelectedNode = FirstVisibleNode;
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446 | } else {
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447 | if (e.KeyCode == Keys.Down && selectedNode.NextVisibleNode != null)
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448 | typesTreeView.SelectedNode = selectedNode.NextVisibleNode;
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449 | if (e.KeyCode == Keys.Up && selectedNode.PrevVisibleNode != null)
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450 | typesTreeView.SelectedNode = selectedNode.PrevVisibleNode;
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451 | }
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452 | e.Handled = true;
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453 | }
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454 | }
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455 |
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456 | private TreeNode FirstVisibleNode {
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457 | get {
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458 | return typesTreeView.Nodes.Count > 0 ? typesTreeView.Nodes[0] : null;
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459 | }
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460 | }
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461 |
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462 | private class ItemTreeNodeComparer : IComparer {
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463 | private static readonly IComparer<string> Comparer = new NaturalStringComparer();
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464 | public int Compare(object x, object y) {
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465 | var lhs = (TreeNode)x;
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466 | var rhs = (TreeNode)y;
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467 |
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468 | if (lhs.Tag is string && rhs.Tag is string) {
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469 | return Comparer.Compare((string)lhs.Tag, (string)rhs.Tag);
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470 | }
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471 | if (lhs.Tag is string) {
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472 | return -1;
|
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473 | }
|
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474 | return 1;
|
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475 | }
|
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476 | }
|
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477 | }
|
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478 | }
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