1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2008 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.ComponentModel;
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25 | using System.Drawing;
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26 | using System.Data;
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27 | using System.Text;
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28 | using System.Windows.Forms;
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29 | using HeuristicLab.Core;
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30 |
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31 | namespace HeuristicLab.Constraints {
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32 | /// <summary>
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33 | /// The visual representation of the <see cref="AllSubOperatorsTypeConstraint"/>.
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34 | /// </summary>
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35 | public partial class AllSubOperatorsTypeConstraintView : ViewBase {
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36 | private SubOperatorTypeConstraint constraint = new SubOperatorTypeConstraint();
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37 |
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38 | /// <summary>
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39 | /// Gets or sets the SubOperatorTypeConstraint to display.
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40 | /// </summary>
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41 | public SubOperatorTypeConstraint Constraint {
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42 | get { return constraint; }
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43 | set {
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44 | constraint = value;
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45 | UpdateAllowedOperatorsList();
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46 | }
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47 | }
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48 |
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49 | /// <summary>
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50 | /// Initializes a new instance of <see cref="AllSubOperatorsTypeConstraintView"/>.
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51 | /// </summary>
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52 | public AllSubOperatorsTypeConstraintView() {
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53 | InitializeComponent();
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54 | }
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55 |
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56 | /// <summary>
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57 | /// Initializes a new instance of <see cref="AllSubOperatorsTypeConstraintView"/> with
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58 | /// the given <paramref name="constraint"/> to display.
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59 | /// </summary>
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60 | /// <param name="constraint">The constraint that should be displayed.</param>
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61 | public AllSubOperatorsTypeConstraintView(SubOperatorTypeConstraint constraint) {
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62 | this.constraint = constraint;
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63 | InitializeComponent();
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64 | }
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65 |
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66 | private void UpdateAllowedOperatorsList() {
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67 | listView.Clear();
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68 | foreach(IOperator op in constraint.AllowedSubOperators) {
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69 | ListViewItem item = new ListViewItem();
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70 | item.Name = op.Name;
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71 | item.Text = op.Name;
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72 | item.Tag = op;
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73 | listView.Items.Add(item);
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74 | }
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75 | Refresh();
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76 | }
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77 |
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78 | private void op_NameChanged(object sender, EventArgs e) {
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79 | IOperator srcOp = (IOperator)sender;
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80 |
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81 | foreach(ListViewItem item in listView.Items) {
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82 | if(item.Tag == srcOp) {
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83 | item.Text = srcOp.Name;
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84 | item.Name = srcOp.Name;
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85 | break;
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86 | }
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87 | }
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88 | Refresh();
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89 | }
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90 |
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91 | #region Key Events
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92 | private void listView_KeyDown(object sender, KeyEventArgs e) {
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93 | if(e.KeyCode == Keys.Delete) {
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94 | while(listView.SelectedIndices.Count > 0) {
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95 | constraint.RemoveOperator((IOperator)listView.SelectedItems[0].Tag);
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96 | listView.Items.RemoveAt(listView.SelectedIndices[0]);
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97 | }
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98 | }
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99 | }
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100 | #endregion
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101 |
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102 | #region Drag Events
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103 | private void listView_DragDrop(object sender, DragEventArgs e) {
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104 | if(e.Effect != DragDropEffects.None) {
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105 | if(e.Data.GetDataPresent("IOperator")) {
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106 | IOperator op = (IOperator)e.Data.GetData("IOperator");
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107 | ListViewItem item = new ListViewItem();
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108 | item.Tag = op;
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109 | item.Name = op.Name;
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110 | item.Text = op.Name;
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111 | listView.Items.Add(item);
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112 | constraint.AddOperator(op);
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113 | op.NameChanged += new EventHandler(op_NameChanged);
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114 | listView.SelectedIndices.Clear();
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115 | }
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116 | }
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117 | }
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118 |
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119 | private void listView_DragEnter(object sender, DragEventArgs e) {
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120 | this.FindForm().BringToFront();
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121 | this.Focus();
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122 | e.Effect = DragDropEffects.None;
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123 | if(e.Data.GetDataPresent("IOperator")) {
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124 | IOperator op = (IOperator)e.Data.GetData("IOperator");
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125 | if(!ListContains(op)) {
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126 | e.Effect = DragDropEffects.Copy;
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127 | }
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128 | }
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129 | }
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130 |
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131 | private void listView_DragOver(object sender, DragEventArgs e) {
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132 | e.Effect = DragDropEffects.None;
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133 | if(e.Data.GetDataPresent("IOperator")) {
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134 | IOperator op = (IOperator)e.Data.GetData("IOperator");
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135 | if(!ListContains(op)) {
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136 | e.Effect = DragDropEffects.Copy;
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137 | }
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138 | }
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139 | }
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140 | #endregion
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141 |
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142 | #region button events
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143 | private void removeButton_Click(object sender, EventArgs e) {
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144 | while(listView.SelectedIndices.Count > 0) {
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145 | constraint.RemoveOperator((IOperator)listView.SelectedItems[0].Tag);
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146 | listView.Items.RemoveAt(listView.SelectedIndices[0]);
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147 | }
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148 | }
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149 | #endregion
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150 |
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151 | private bool ListContains(IOperator op) {
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152 | foreach(ListViewItem item in listView.Items) {
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153 | if(item.Tag == op) return true;
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154 | }
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155 | return false;
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156 | }
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157 |
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158 | private void listView_SelectedIndexChanged(object sender, EventArgs e) {
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159 | if(listView.SelectedItems.Count > 0) {
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160 | removeButton.Enabled = true;
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161 | } else {
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162 | removeButton.Enabled = false;
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163 | }
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164 | }
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165 | }
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166 | }
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