1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2015 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.Generic;
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24 | using System.Linq;
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25 | using System.Windows.Forms;
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26 | using HeuristicLab.Core;
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27 | using HeuristicLab.PluginInfrastructure;
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28 |
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29 | namespace HeuristicLab.Optimizer {
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30 | internal partial class NewItemDialog : Form {
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31 | private bool isInitialized;
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32 |
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33 | private List<TreeNode> treeNodes;
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34 | private string currentSearchString;
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35 |
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36 | private Type selectedType;
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37 | public Type SelectedType {
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38 | get { return selectedType; }
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39 | private set {
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40 | if (value != selectedType) {
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41 | selectedType = value;
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42 | OnSelectedTypeChanged();
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43 | }
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44 | }
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45 | }
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46 |
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47 | private IItem item;
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48 | public IItem Item {
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49 | get { return item; }
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50 | }
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51 |
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52 | public NewItemDialog() {
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53 | InitializeComponent();
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54 | treeNodes = new List<TreeNode>();
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55 | currentSearchString = string.Empty;
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56 | item = null;
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57 | SelectedTypeChanged += this_SelectedTypeChanged;
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58 | }
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59 |
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60 | private void NewItemDialog_Load(object sender, EventArgs e) {
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61 | if (isInitialized) return;
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62 |
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63 | var categories =
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64 | from t in ApplicationManager.Manager.GetTypes(typeof(IItem))
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65 | where CreatableAttribute.IsCreatable(t)
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66 | orderby CreatableAttribute.GetCategory(t), ItemAttribute.GetName(t), ItemAttribute.GetVersion(t) ascending
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67 | group t by CreatableAttribute.GetCategory(t) into c
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68 | select c;
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69 |
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70 | imageList.Images.Add(HeuristicLab.Common.Resources.VSImageLibrary.Class); // default icon
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71 | imageList.Images.Add(HeuristicLab.Common.Resources.VSImageLibrary.Namespace); // plugins
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72 |
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73 | foreach (var category in categories) {
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74 | var categoryNode = new TreeNode(category.Key) {
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75 | ImageIndex = 1,
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76 | Tag = category.Key,
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77 | };
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78 | categoryNode.SelectedImageIndex = categoryNode.ImageIndex;
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79 |
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80 | foreach (var creatable in category) {
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81 | string name = ItemAttribute.GetName(creatable);
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82 |
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83 | var itemNode = new TreeNode(name) {
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84 | ImageIndex = 0,
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85 | Tag = creatable
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86 | };
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87 | categoryNode.Nodes.Add(itemNode);
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88 | var image = ItemAttribute.GetImage(creatable);
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89 | if (image != null) {
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90 | imageList.Images.Add(image);
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91 | itemNode.ImageIndex = imageList.Images.Count - 1;
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92 | }
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93 | itemNode.SelectedImageIndex = itemNode.ImageIndex;
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94 | }
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95 | if (categoryNode.Nodes.Count > 0)
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96 | treeNodes.Add(categoryNode);
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97 | }
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98 | foreach (var node in treeNodes)
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99 | typesTreeView.Nodes.Add((TreeNode)node.Clone());
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100 | isInitialized = true;
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101 | }
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102 | private void NewItemDialog_Shown(object sender, EventArgs e) {
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103 | SelectedType = null;
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104 | }
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105 |
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106 | public virtual void Filter(string searchString) {
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107 | if (InvokeRequired) {
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108 | Invoke(new Action<string>(Filter), searchString);
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109 | } else {
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110 | searchString = searchString.ToLower();
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111 |
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112 | if (!searchString.Contains(currentSearchString)) {
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113 | typesTreeView.BeginUpdate();
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114 | // expand saerch -> restore all tree nodes
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115 | var selectedNode = typesTreeView.SelectedNode;
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116 | typesTreeView.Nodes.Clear();
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117 | foreach (TreeNode node in treeNodes)
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118 | typesTreeView.Nodes.Add((TreeNode)node.Clone());
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119 | RestoreSelectedNode(selectedNode);
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120 | typesTreeView.EndUpdate();
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121 | }
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122 |
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123 | // remove nodes
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124 | typesTreeView.BeginUpdate();
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125 | int i = 0;
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126 | var searchTokens = searchString.Split(' ');
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127 | while (i < typesTreeView.Nodes.Count) {
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128 | int j = 0;
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129 | while (j < typesTreeView.Nodes[i].Nodes.Count) {
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130 | if (searchTokens.Any(searchToken => !typesTreeView.Nodes[i].Nodes[j].Text.ToLower().Contains(searchToken))) {
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131 | if ((typesTreeView.Nodes[i].Nodes[j].Tag as Type).Equals(SelectedType))
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132 | SelectedType = null;
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133 | typesTreeView.Nodes[i].Nodes[j].Remove();
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134 | } else
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135 | j++;
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136 | }
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137 | if (typesTreeView.Nodes[i].Nodes.Count == 0)
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138 | typesTreeView.Nodes[i].Remove();
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139 | else
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140 | i++;
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141 | }
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142 | typesTreeView.EndUpdate();
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143 | currentSearchString = searchString;
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144 |
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145 | // if there is just one type node left, select by default
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146 | if (typesTreeView.Nodes.Count == 1) {
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147 | if (typesTreeView.Nodes[0].Nodes.Count == 1) {
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148 | typesTreeView.SelectedNode = typesTreeView.Nodes[0].Nodes[0];
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149 | }
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150 | }
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151 |
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152 | if (typesTreeView.Nodes.Count == 0) {
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153 | SelectedType = null;
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154 | typesTreeView.Enabled = false;
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155 | } else {
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156 | SetTreeNodeVisibility();
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157 | typesTreeView.Enabled = true;
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158 | }
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159 | UpdateDescription();
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160 | }
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161 | }
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162 |
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163 | protected virtual void UpdateDescription() {
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164 | descriptionTextBox.Text = string.Empty;
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165 |
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166 | if (typesTreeView.SelectedNode != null) {
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167 | string category = typesTreeView.SelectedNode.Tag as string;
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168 | if (category != null) {
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169 | descriptionTextBox.Text = category;
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170 | pluginTextBox.Text = string.Empty;
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171 | versionTextBox.Text = string.Empty;
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172 | }
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173 | Type type = typesTreeView.SelectedNode.Tag as Type;
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174 | if (type != null) {
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175 | string description = ItemAttribute.GetDescription(type);
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176 | var version = ItemAttribute.GetVersion(type);
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177 | var plugin = ApplicationManager.Manager.GetDeclaringPlugin(type);
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178 | if (description != null)
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179 | descriptionTextBox.Text = description;
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180 | if (plugin != null)
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181 | pluginTextBox.Text = plugin.Name;
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182 | if (version != null)
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183 | versionTextBox.Text = version.ToString();
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184 | }
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185 | } else if (typesTreeView.Nodes.Count == 0) {
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186 | descriptionTextBox.Text = "No types found";
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187 | pluginTextBox.Text = string.Empty;
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188 | versionTextBox.Text = string.Empty;
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189 | }
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190 | }
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191 |
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192 | #region Events
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193 | public event EventHandler SelectedTypeChanged;
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194 | protected virtual void OnSelectedTypeChanged() {
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195 | if (SelectedTypeChanged != null)
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196 | SelectedTypeChanged(this, EventArgs.Empty);
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197 | }
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198 | #endregion
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199 |
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200 | #region Control Events
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201 | protected virtual void searchTextBox_TextChanged(object sender, EventArgs e) {
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202 | Filter(searchTextBox.Text);
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203 | }
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204 |
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205 | protected virtual void itemsTreeView_AfterSelect(object sender, TreeViewEventArgs e) {
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206 | if (typesTreeView.SelectedNode == null) SelectedType = null;
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207 | else SelectedType = typesTreeView.SelectedNode.Tag as Type;
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208 | UpdateDescription();
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209 | }
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210 |
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211 | protected virtual void itemsTreeView_VisibleChanged(object sender, EventArgs e) {
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212 | if (Visible) SetTreeNodeVisibility();
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213 | }
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214 | #endregion
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215 |
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216 | #region Helpers
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217 | private void RestoreSelectedNode(TreeNode selectedNode) {
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218 | if (selectedNode != null) {
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219 | foreach (TreeNode node in typesTreeView.Nodes) {
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220 | if (node.Text.Equals(selectedNode.Text)) typesTreeView.SelectedNode = node;
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221 | foreach (TreeNode child in node.Nodes) {
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222 | if ((child.Text.Equals(selectedNode.Text)) && (child.Tag == selectedNode.Tag))
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223 | typesTreeView.SelectedNode = child;
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224 | }
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225 | }
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226 | if (typesTreeView.SelectedNode == null) SelectedType = null;
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227 | }
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228 | }
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229 | private void SetTreeNodeVisibility() {
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230 | TreeNode selectedNode = typesTreeView.SelectedNode;
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231 | if (string.IsNullOrEmpty(currentSearchString) && (typesTreeView.Nodes.Count > 1)) {
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232 | typesTreeView.CollapseAll();
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233 | if (selectedNode != null) typesTreeView.SelectedNode = selectedNode;
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234 | } else {
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235 | typesTreeView.ExpandAll();
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236 | }
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237 | if (selectedNode != null) selectedNode.EnsureVisible();
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238 | }
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239 | #endregion
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240 |
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241 | private void okButton_Click(object sender, EventArgs e) {
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242 | if (SelectedType != null) {
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243 | item = (IItem)Activator.CreateInstance(SelectedType);
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244 | DialogResult = DialogResult.OK;
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245 | Close();
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246 | }
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247 | }
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248 | private void itemTreeView_DoubleClick(object sender, EventArgs e) {
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249 | if (SelectedType != null) {
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250 | item = (IItem)Activator.CreateInstance(SelectedType);
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251 | DialogResult = DialogResult.OK;
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252 | Close();
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253 | }
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254 | }
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255 | private void this_SelectedTypeChanged(object sender, EventArgs e) {
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256 | okButton.Enabled = SelectedType != null;
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257 | }
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258 |
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259 | private void expandAllButton_Click(object sender, EventArgs e) {
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260 | typesTreeView.ExpandAll();
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261 | }
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262 | private void collapseAllButton_Click(object sender, EventArgs e) {
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263 | typesTreeView.CollapseAll();
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264 | }
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265 | }
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266 | }
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