1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2013 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.Globalization;
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25 | using System.Linq;
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26 | using HeuristicLab.Data;
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27 |
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28 | namespace HeuristicLab.DataPreprocessing {
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29 | public class DataGridLogic : IDataGridLogic {
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30 |
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31 | private ITransactionalPreprocessingData preprocessingData;
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32 | private IEnumerable<string> rowNames;
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33 |
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34 | public DataGridLogic(ITransactionalPreprocessingData preprocessingData) {
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35 | this.preprocessingData = preprocessingData;
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36 | createRowNames();
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37 | }
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38 |
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39 | private void createRowNames() {
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40 | rowNames = Enumerable.Range(1, Rows).Select(n => n.ToString());
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41 | }
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42 |
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43 | public int Rows {
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44 | get {
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45 | return preprocessingData.Rows;
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46 | }
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47 | }
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48 |
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49 | public int Columns {
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50 | get {
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51 | return preprocessingData.Columns;
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52 | }
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53 | }
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54 |
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55 | public IEnumerable<string> ColumnNames {
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56 | get {
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57 | return preprocessingData.VariableNames;
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58 | }
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59 | }
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60 |
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61 | public IEnumerable<string> RowNames {
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62 | get {
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63 | return rowNames;
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64 | }
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65 | }
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66 |
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67 | public bool Validate(string value, out string errorMessage, int columnIndex) {
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68 | if (columnIndex < 0 || columnIndex > preprocessingData.VariableNames.Count()) {
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69 | throw new ArgumentOutOfRangeException("column index is out of range");
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70 | }
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71 |
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72 | bool valid = false;
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73 | errorMessage = string.Empty;
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74 | if (preprocessingData.IsType<double>(columnIndex)) {
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75 | double val;
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76 | valid = double.TryParse(value, out val);
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77 | if (!valid) {
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78 | errorMessage = "Invalid Value (Valid Value Format: \"" + FormatPatterns.GetDoubleFormatPattern() + "\")";
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79 | }
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80 | } else if (preprocessingData.IsType<string>(columnIndex)) {
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81 | valid = value != null;
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82 | if (!valid) {
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83 | errorMessage = "Invalid Value (string must not be null)";
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84 | }
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85 | } else if (preprocessingData.IsType<DateTime>(columnIndex)) {
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86 | DateTime date;
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87 | valid = DateTime.TryParse(value, out date);
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88 | if (!valid) {
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89 | errorMessage = "Invalid Value (Valid Value Format: \"" + CultureInfo.CurrentCulture.DateTimeFormat + "\"";
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90 | }
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91 | } else {
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92 | throw new ArgumentException("column " + columnIndex + " contains a non supported type.");
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93 | }
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94 |
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95 | return valid;
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96 | }
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97 |
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98 | public string GetValue(int columnIndex, int rowIndex) {
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99 | return preprocessingData.GetCellAsString(columnIndex, rowIndex);
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100 | }
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101 |
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102 | public bool SetValue(string value, int columnIndex, int rowIndex) {
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103 | bool valid = false;
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104 | if (preprocessingData.IsType<double>(columnIndex)) {
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105 | double val;
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106 | valid = double.TryParse(value, out val);
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107 | SetValueIfValid(columnIndex, rowIndex, valid, val);
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108 | } else if (preprocessingData.IsType<string>(columnIndex)) {
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109 | valid = value != null;
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110 | SetValueIfValid(columnIndex, rowIndex, valid, value);
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111 | } else if (preprocessingData.IsType<DateTime>(columnIndex)) {
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112 | DateTime date;
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113 | valid = DateTime.TryParse(value, out date);
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114 | SetValueIfValid(columnIndex, rowIndex, valid, date);
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115 | } else {
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116 | throw new ArgumentException("column " + columnIndex + " contains a non supported type.");
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117 | }
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118 | return valid;
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119 | }
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120 |
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121 | private void SetValueIfValid<T>(int columnIndex, int rowIndex, bool valid, T value) {
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122 | if (valid) {
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123 | preprocessingData.SetCell<T>(columnIndex, rowIndex, value);
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124 | }
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125 | }
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126 |
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127 | public void DeleteRow(List<int> rows) {
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128 | preprocessingData.InTransaction(() => {
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129 | foreach (int rowIndex in rows) {
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130 | preprocessingData.DeleteRow(rowIndex);
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131 | }
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132 | });
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133 | createRowNames();
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134 | }
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135 |
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136 | public event DataPreprocessingChangedEventHandler Changed {
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137 | add { preprocessingData.Changed += value; }
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138 | remove { preprocessingData.Changed -= value; }
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139 | }
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140 |
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141 | public bool AreAllStringColumns(IEnumerable<int> columnIndices) {
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142 | return columnIndices.All(x => preprocessingData.IsType<string>(x));
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143 | }
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144 |
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145 |
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146 |
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147 | public void SetSelection(IDictionary<int, IList<int>> selection) {
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148 | preprocessingData.SetSelection(selection);
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149 | }
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150 |
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151 | public IDictionary<int, IList<int>> GetSelection() {
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152 | return preprocessingData.GetSelection();
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153 | }
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154 | public void ClearSelection() {
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155 | preprocessingData.ClearSelection();
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156 | }
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157 |
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158 | public event EventHandler SelectionChanged {
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159 | add { preprocessingData.SelectionChanged += value; }
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160 | remove { preprocessingData.SelectionChanged -= value; }
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161 | }
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162 |
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163 | }
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164 | }
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