1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2010 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.Windows.Forms;
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24 | using HeuristicLab.Common;
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25 | using HeuristicLab.Core;
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26 | using HeuristicLab.Core.Views;
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27 | using HeuristicLab.MainForm;
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28 |
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29 | namespace HeuristicLab.Parameters.Views {
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30 | /// <summary>
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31 | /// The visual representation of a <see cref="Parameter"/>.
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32 | /// </summary>
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33 | [View("ValueLookupParameter View")]
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34 | [Content(typeof(ValueLookupParameter<>), true)]
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35 | [Content(typeof(IValueLookupParameter<>), false)]
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36 | public partial class ValueLookupParameterView<T> : ParameterView where T : class, IItem {
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37 | protected TypeSelectorDialog typeSelectorDialog;
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38 |
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39 | /// <summary>
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40 | /// Gets or sets the variable to represent visually.
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41 | /// </summary>
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42 | /// <remarks>Uses property <see cref="ViewBase.Item"/> of base class <see cref="ViewBase"/>.
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43 | /// No own data storage present.</remarks>
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44 | public new IValueLookupParameter<T> Content {
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45 | get { return (IValueLookupParameter<T>)base.Content; }
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46 | set { base.Content = value; }
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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="VariableView"/> with caption "Variable".
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51 | /// </summary>
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52 | public ValueLookupParameterView() {
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53 | InitializeComponent();
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54 | Caption = "ValueLookupParameter";
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55 | }
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56 | /// <summary>
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57 | /// Initializes a new instance of <see cref="VariableView"/> with the given <paramref name="variable"/>.
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58 | /// </summary>
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59 | /// <remarks>Calls <see cref="VariableView()"/>.</remarks>
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60 | /// <param name="variable">The variable to represent visually.</param>
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61 | public ValueLookupParameterView(IValueLookupParameter<T> content)
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62 | : this() {
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63 | Content = content;
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64 | }
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65 |
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66 | /// <summary>
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67 | /// Removes the eventhandlers from the underlying <see cref="IVariable"/>.
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68 | /// </summary>
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69 | /// <remarks>Calls <see cref="ViewBase.RemoveItemEvents"/> of base class <see cref="ViewBase"/>.</remarks>
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70 | protected override void DeregisterContentEvents() {
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71 | Content.ActualNameChanged -= new EventHandler(Content_ActualNameChanged);
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72 | Content.ValueChanged -= new EventHandler(Content_ValueChanged);
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73 | base.DeregisterContentEvents();
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74 | }
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75 |
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76 | /// <summary>
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77 | /// Adds eventhandlers to the underlying <see cref="IVariable"/>.
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78 | /// </summary>
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79 | /// <remarks>Calls <see cref="ViewBase.AddItemEvents"/> of base class <see cref="ViewBase"/>.</remarks>
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80 | protected override void RegisterContentEvents() {
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81 | base.RegisterContentEvents();
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82 | Content.ActualNameChanged += new EventHandler(Content_ActualNameChanged);
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83 | Content.ValueChanged += new EventHandler(Content_ValueChanged);
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84 | }
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85 |
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86 | protected override void OnContentChanged() {
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87 | base.OnContentChanged();
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88 | if (Content == null) {
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89 | Caption = "ValueLookupParameter";
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90 | actualNameTextBox.Text = "-";
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91 | viewHost.Content = null;
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92 | } else {
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93 | Caption = Content.Name + " (" + Content.GetType().Name + ")";
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94 | actualNameTextBox.Text = Content.ActualName;
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95 | viewHost.ViewType = null;
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96 | viewHost.Content = Content.Value;
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97 | }
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98 | SetEnabledStateOfControls();
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99 | }
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100 |
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101 | protected override void OnReadOnlyChanged() {
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102 | base.OnReadOnlyChanged();
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103 | SetEnabledStateOfControls();
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104 | }
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105 |
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106 | private void SetEnabledStateOfControls() {
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107 | actualNameTextBox.Enabled = Content != null;
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108 | actualNameTextBox.ReadOnly = ReadOnly;
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109 | setValueButton.Enabled = Content != null && !ReadOnly;
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110 | clearValueButton.Enabled = Content != null && Content.Value != null && !ReadOnly;
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111 | valueGroupBox.Enabled = Content != null;
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112 | viewHost.ReadOnly = ReadOnly;
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113 | }
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114 |
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115 | protected virtual void Content_ActualNameChanged(object sender, EventArgs e) {
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116 | if (InvokeRequired)
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117 | Invoke(new EventHandler(Content_ActualNameChanged), sender, e);
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118 | else
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119 | actualNameTextBox.Text = Content.ActualName;
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120 | }
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121 | protected virtual void Content_ValueChanged(object sender, EventArgs e) {
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122 | if (InvokeRequired)
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123 | Invoke(new EventHandler(Content_ValueChanged), sender, e);
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124 | else {
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125 | clearValueButton.Enabled = Content.Value != null && !ReadOnly;
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126 | viewHost.ViewType = null;
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127 | viewHost.Content = Content.Value;
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128 | }
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129 | }
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130 |
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131 | protected virtual void actualNameTextBox_Validated(object sender, EventArgs e) {
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132 | Content.ActualName = actualNameTextBox.Text;
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133 | }
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134 | protected virtual void setValueButton_Click(object sender, EventArgs e) {
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135 | if (typeSelectorDialog == null) {
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136 | typeSelectorDialog = new TypeSelectorDialog();
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137 | typeSelectorDialog.Caption = "Select Value";
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138 | typeSelectorDialog.TypeSelector.Configure(Content.DataType, false, false);
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139 | }
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140 | if (typeSelectorDialog.ShowDialog(this) == DialogResult.OK)
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141 | Content.Value = (T)typeSelectorDialog.TypeSelector.CreateInstanceOfSelectedType();
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142 | }
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143 | protected virtual void clearValueButton_Click(object sender, EventArgs e) {
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144 | Content.Value = null;
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145 | }
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146 | protected virtual void valuePanel_DragEnterOver(object sender, DragEventArgs e) {
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147 | e.Effect = DragDropEffects.None;
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148 | Type type = e.Data.GetData("Type") as Type;
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149 | if (!ReadOnly && (type != null) && (Content.DataType.IsAssignableFrom(type))) {
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150 | if ((e.KeyState & 8) == 8) e.Effect = DragDropEffects.Copy; // CTRL key
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151 | else if ((e.KeyState & 4) == 4) e.Effect = DragDropEffects.Move; // SHIFT key
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152 | else if ((e.AllowedEffect & DragDropEffects.Link) == DragDropEffects.Link) e.Effect = DragDropEffects.Link;
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153 | else if ((e.AllowedEffect & DragDropEffects.Copy) == DragDropEffects.Copy) e.Effect = DragDropEffects.Copy;
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154 | else if ((e.AllowedEffect & DragDropEffects.Move) == DragDropEffects.Move) e.Effect = DragDropEffects.Move;
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155 | }
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156 | }
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157 | protected virtual void valuePanel_DragDrop(object sender, DragEventArgs e) {
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158 | if (e.Effect != DragDropEffects.None) {
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159 | T value = e.Data.GetData("Value") as T;
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160 | if ((e.Effect & DragDropEffects.Copy) == DragDropEffects.Copy) value = (T)value.Clone();
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161 | Content.Value = value;
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162 | }
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163 | }
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164 | }
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165 | }
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