1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2019 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 | using System;
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22 | using System.ComponentModel;
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23 | using System.Globalization;
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24 | using System.Windows.Forms;
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25 | using HeuristicLab.Core.Views;
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26 | using HeuristicLab.MainForm;
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27 |
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28 | namespace HeuristicLab.Problems.DataAnalysis.Views {
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29 | [View("Interval Constraint Detail View")]
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30 | [Content(typeof(IntervalConstraint), true)]
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31 | public sealed partial class IntervalConstraintView : ItemView {
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32 |
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33 | public new IntervalConstraint Content {
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34 | get => (IntervalConstraint) base.Content;
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35 | set => base.Content = value;
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36 | }
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37 |
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38 | public IntervalConstraintView() {
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39 | InitializeComponent();
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40 | int [] items = {1, 2, 3};
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41 | expressionInput.ReadOnly = true;
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42 | definitionInput.ReadOnly = true;
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43 | numberderivationInput.DataSource = items;
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44 | }
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45 |
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46 | protected override void OnContentChanged() {
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47 | base.OnContentChanged();
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48 | UpdateControls();
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49 | }
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50 |
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51 | protected override void RegisterContentEvents() {
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52 | base.RegisterContentEvents();
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53 | Content.Changed += new EventHandler(Content_Changed);
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54 | }
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55 |
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56 | protected override void DeregisterContentEvents() {
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57 | Content.Changed -= new EventHandler(Content_Changed);
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58 | base.DeregisterContentEvents();
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59 | }
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60 |
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61 | protected override void SetEnabledStateOfControls() {
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62 | base.SetEnabledStateOfControls();
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63 | lowerboundInput.Enabled = Content != null && !Locked && !ReadOnly;
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64 | upperboundInput.Enabled = Content != null && !Locked && !ReadOnly;
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65 | expressionInput.Enabled = Content != null && !Locked && !ReadOnly;
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66 | definitionInput.Enabled = Content != null && !Locked && !ReadOnly;
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67 | definitionInput.ReadOnly = true;
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68 | expressionInput.ReadOnly = true;
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69 | variableInput.ReadOnly = true;
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70 | }
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71 |
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72 |
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73 |
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74 | #region helpers
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75 |
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76 | private static double ParseDoubleValue(string input, Control control, ErrorProvider errorProvider) {
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77 | input = input.ToLower();
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78 | switch (input) {
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79 | case "inf.":
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80 | case "+inf.":
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81 | case "Infinity":
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82 | return double.PositiveInfinity;
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83 | case "-inf.":
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84 | case "-Infinity":
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85 | return double.NegativeInfinity;
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86 | default: {
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87 | if (double.TryParse(input, out var value))
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88 | return value;
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89 | else {
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90 | errorProvider.SetError(control, "Invalid Input: Value must be a double!");
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91 | return double.NaN;
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92 | }
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93 | }
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94 | }
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95 | }
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96 |
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97 | private void UpdateControls() {
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98 | if (Content == null) {
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99 | expressionInput.Text = string.Empty;
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100 | lowerboundInput.Text = string.Empty;
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101 | upperboundInput.Text = string.Empty;
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102 | incllowerboundInput.Checked = true;
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103 | inclupperboundInput.Checked = true;
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104 | return;
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105 | }
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106 |
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107 | expressionInput.Text = Content.Expression;
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108 | definitionInput.Text = Content.Definition;
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109 | lowerboundInput.Text = Content.Interval.LowerBound.ToString();
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110 | upperboundInput.Text = Content.Interval.UpperBound.ToString();
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111 | incllowerboundInput.Checked = Content.InclusiveLowerBound;
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112 | inclupperboundInput.Checked = Content.InclusiveUpperBound;
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113 | variableInput.Text = Content.Variable;
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114 | if (!Content.IsDerivation) {
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115 | numberderivationInput.Visible = false;
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116 | numberderivationLabel.Visible = false;
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117 | } else {
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118 | numberderivationLabel.Visible = true;
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119 | numberderivationInput.Visible = true;
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120 | numberderivationInput.Enabled = true;
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121 | numberderivationInput.SelectedItem = Content.NumberOfDerivation;
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122 | }
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123 |
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124 | ischeckedCheckBox.Checked = Content.Enabled;
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125 | }
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126 |
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127 | private static string UpdateExpression(IntervalConstraint constraint) {
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128 | var expression = "";
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129 |
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130 | if (!constraint.IsDerivation) {
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131 | expression = string.Format("{0} in {1}{2} .. {3}{4}",
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132 | constraint.Variable,
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133 | (constraint.InclusiveLowerBound) ? "[" : "]",
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134 | constraint.Interval.LowerBound,
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135 | constraint.Interval.UpperBound,
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136 | (constraint.InclusiveUpperBound) ? "]" : "[");
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137 | } else {
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138 | expression = string.Format("\u2202{5}Target/\u2202{0}{6} in {1}{2} .. {3}{4}",
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139 | constraint.Variable,
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140 | (constraint.InclusiveLowerBound) ? "[" : "]",
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141 | constraint.Interval.LowerBound,
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142 | constraint.Interval.UpperBound,
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143 | (constraint.InclusiveUpperBound) ? "]" : "[",
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144 | GetDerivationString(constraint.numberOfDerivation),
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145 | GetDerivationString(constraint.numberOfDerivation));
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146 | }
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147 |
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148 | return expression;
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149 | }
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150 |
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151 | private static string UpdateDefintion(IntervalConstraint constraint) {
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152 | var definition = "";
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153 |
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154 | if (!constraint.IsDerivation) {
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155 | return "Target " + constraint.Variable;
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156 | }
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157 |
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158 | definition = $"\u2202{GetDerivationString(constraint.numberOfDerivation)}Target/\u2202{constraint.Variable}{GetDerivationString(constraint.numberOfDerivation)}";
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159 |
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160 | return definition;
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161 | }
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162 |
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163 | private static string GetDerivationString(int derivation) {
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164 | switch (derivation) {
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165 | case 1:
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166 | return "";
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167 | case 2:
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168 | return "²";
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169 | case 3:
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170 | return "³";
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171 | default:
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172 | return "";
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173 | }
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174 | }
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175 |
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176 | #endregion
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177 |
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178 | #region control event handlers
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179 | private void lowerboundInput_Validating(object sender, CancelEventArgs e) {
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180 | var value = ParseDoubleValue(lowerboundInput.Text, lowerboundInput, this.errorProvider);
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181 | if (double.IsNaN(value)) {
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182 | errorProvider.SetError(lowerboundInput, "Invalid Input: Lowerbound must be a double value!");
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183 | e.Cancel = true;
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184 | return;
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185 | }
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186 |
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187 | if (value > Content.Interval.UpperBound) {
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188 | errorProvider.SetError(lowerboundInput, "Invalid Input: Lowerbound must be smaller than Upperbound!");
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189 | e.Cancel = true;
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190 | return;
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191 | }
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192 |
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193 | errorProvider.SetError(lowerboundInput, string.Empty);
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194 | e.Cancel = false;
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195 | }
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196 |
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197 | private void lowerboundInput_Validated(object sender, EventArgs e) {
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198 | var value = ParseDoubleValue(lowerboundInput.Text, lowerboundInput, this.errorProvider);
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199 | if (!double.IsNaN(value)) {
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200 | Content.Interval = new Interval(value, Content.Interval.UpperBound);
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201 | var exp = UpdateExpression(Content);
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202 | Content.Name = exp;
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203 | Content.Expression = exp;
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204 | }
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205 | }
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206 |
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207 | private void upperboundInput_Validating(object sender, CancelEventArgs e) {
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208 | var value = ParseDoubleValue(upperboundInput.Text, upperboundInput, this.errorProvider);
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209 | if (double.IsNaN(value)) {
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210 | errorProvider.SetError(upperboundInput, "Invalid Input: Upperbound must be a double value!");
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211 | e.Cancel = true;
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212 | return;
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213 | }
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214 |
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215 | if (value < Content.Interval.LowerBound) {
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216 | errorProvider.SetError(upperboundInput, "Invalid Input: Upperbound must be bigger than Lowerbound!");
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217 | e.Cancel = true;
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218 | return;
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219 | }
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220 |
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221 | errorProvider.SetError(upperboundInput, string.Empty);
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222 | e.Cancel = false;
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223 | }
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224 |
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225 | private void upperboundInput_Validated(object sender, EventArgs e) {
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226 | var value = ParseDoubleValue(upperboundInput.Text, upperboundInput, this.errorProvider);
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227 | if (!double.IsNaN(value)) {
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228 | Content.Interval = new Interval(Content.Interval.LowerBound, value);
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229 | var exp = UpdateExpression(Content);
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230 | Content.Name = exp;
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231 | Content.Expression = exp;
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232 | }
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233 | }
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234 |
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235 | private void incllowerboundInput_CheckedChanged(object sender, EventArgs e) {
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236 | Content.InclusiveLowerBound = incllowerboundInput.Checked;
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237 | var exp = UpdateExpression(Content);
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238 | Content.Name = exp;
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239 | Content.Expression = exp;
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240 | }
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241 |
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242 | private void inclupperboundInput_CheckedChanged(object sender, EventArgs e) {
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243 | Content.InclusiveUpperBound = inclupperboundInput.Checked;
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244 | var exp = UpdateExpression(Content);
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245 | Content.Name = exp;
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246 | Content.Expression = exp;
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247 | }
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248 |
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249 | private void ischeckedCheckBox_CheckedChanged(object sender, EventArgs e) {
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250 | Content.Enabled = ischeckedCheckBox.Checked;
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251 | }
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252 |
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253 | private void numberderivationInput_SelectedIndexChanged(object sender, EventArgs e) {
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254 | if ((int)numberderivationInput.SelectedItem == 1)
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255 | Content.numberOfDerivation = 1;
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256 | else if ((int)numberderivationInput.SelectedItem == 2)
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257 | Content.numberOfDerivation = 2;
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258 | else if ((int)numberderivationInput.SelectedItem == 3)
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259 | Content.numberOfDerivation = 3;
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260 |
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261 | var exp = UpdateExpression(Content);
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262 | var def = UpdateDefintion(Content);
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263 | Content.Name = exp;
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264 | Content.Expression = exp;
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265 | Content.Definition = def;
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266 | }
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267 |
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268 | #endregion
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269 |
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270 | #region content event handlers
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271 |
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272 | private void Content_Changed(object sender, EventArgs e) {
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273 | UpdateControls();
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274 | }
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275 | #endregion
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276 | }
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277 | }
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