[8409] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[14185] | 3 | * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[8409] | 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.ComponentModel;
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| 24 | using System.Text;
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| 25 | using System.Windows.Forms;
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| 26 | using HeuristicLab.Data;
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| 27 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
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| 28 |
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| 29 | namespace HeuristicLab.Problems.DataAnalysis.Symbolic.Views {
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[8980] | 30 | public partial class VariableNodeEditDialog : Form {
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| 31 | private VariableTreeNode variableTreeNode;
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| 32 | public VariableTreeNode NewNode {
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| 33 | get { return variableTreeNode; }
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[8409] | 34 | set {
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| 35 | if (InvokeRequired)
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[8980] | 36 | Invoke(new Action<SymbolicExpressionTreeNode>(x => variableTreeNode = (VariableTreeNode)x), value);
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[8409] | 37 | else
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[8980] | 38 | variableTreeNode = value;
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[8409] | 39 | }
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| 40 | }
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| 41 |
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[8980] | 42 | public VariableNodeEditDialog(ISymbolicExpressionTreeNode node) {
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[8409] | 43 | InitializeComponent();
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| 44 | oldValueTextBox.TabStop = false; // cannot receive focus using tab key
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[8980] | 45 |
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| 46 | NewNode = (VariableTreeNode)node; // will throw an invalid cast exception if node is not of the correct type
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| 47 | InitializeFields();
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[8409] | 48 | }
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| 49 |
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[8980] | 50 | private void InitializeFields() {
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| 51 | if (NewNode == null)
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| 52 | throw new ArgumentException("Node is not a constant.");
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| 53 | else {
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| 54 | this.Text = "Edit variable";
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| 55 | newValueTextBox.Text = oldValueTextBox.Text = Math.Round(variableTreeNode.Weight, 4).ToString();
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[8409] | 56 | // add a dropbox containing all the available variable names
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| 57 | variableNameLabel.Visible = true;
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| 58 | variableNamesCombo.Visible = true;
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[8980] | 59 | foreach (var name in variableTreeNode.Symbol.VariableNames) variableNamesCombo.Items.Add(name);
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| 60 | variableNamesCombo.SelectedIndex = variableNamesCombo.Items.IndexOf(variableTreeNode.VariableName);
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[8409] | 61 | }
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| 62 | }
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| 63 |
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| 64 | #region text box validation and events
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| 65 | private void newValueTextBox_Validating(object sender, CancelEventArgs e) {
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| 66 | string errorMessage;
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| 67 | if (!ValidateNewValue(newValueTextBox.Text, out errorMessage)) {
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| 68 | e.Cancel = true;
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| 69 | errorProvider.SetError(newValueTextBox, errorMessage);
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| 70 | newValueTextBox.SelectAll();
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| 71 | }
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| 72 | }
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| 73 |
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| 74 | private void newValueTextBox_Validated(object sender, EventArgs e) {
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| 75 | errorProvider.SetError(newValueTextBox, string.Empty);
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| 76 | }
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| 77 |
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| 78 | private static bool ValidateNewValue(string value, out string errorMessage) {
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| 79 | double val;
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| 80 | bool valid = double.TryParse(value, out val);
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| 81 | errorMessage = string.Empty;
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| 82 | if (!valid) {
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| 83 | var sb = new StringBuilder();
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| 84 | sb.Append("Invalid Value (Valid Value Format: \"");
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| 85 | sb.Append(FormatPatterns.GetDoubleFormatPattern());
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| 86 | sb.Append("\")");
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| 87 | errorMessage = sb.ToString();
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| 88 | }
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| 89 | return valid;
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| 90 | }
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| 91 | #endregion
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| 92 |
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| 93 | #region combo box validation and events
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| 94 | private void variableNamesCombo_Validating(object sender, CancelEventArgs e) {
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| 95 | if (variableNamesCombo.Items.Contains(variableNamesCombo.SelectedItem)) return;
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| 96 | e.Cancel = true;
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| 97 | errorProvider.SetError(variableNamesCombo, "Invalid variable name");
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| 98 | variableNamesCombo.SelectAll();
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| 99 | }
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| 100 |
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| 101 | private void variableNamesCombo_Validated(object sender, EventArgs e) {
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| 102 | errorProvider.SetError(variableNamesCombo, String.Empty);
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| 103 | }
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| 104 | #endregion
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| 105 | // proxy handler passing key strokes to the parent control
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| 106 | private void childControl_KeyDown(object sender, KeyEventArgs e) {
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| 107 | ValueChangeDialog_KeyDown(sender, e);
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| 108 | }
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| 109 |
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| 110 | private void ValueChangeDialog_KeyDown(object sender, KeyEventArgs e) {
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| 111 | if ((e.KeyCode == Keys.Enter) || (e.KeyCode == Keys.Return)) {
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| 112 | if (!ValidateChildren()) return;
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[8935] | 113 | OnDialogValidated(this, e); // emit validated effect
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[8409] | 114 | Close();
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| 115 | }
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| 116 | }
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| 117 |
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| 118 | public event EventHandler DialogValidated;
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[8935] | 119 | private void OnDialogValidated(object sender, EventArgs e) {
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[8980] | 120 | double weight = double.Parse(newValueTextBox.Text);
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| 121 | var variableName = (string)variableNamesCombo.SelectedItem;
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| 122 | // we impose an extra validation condition: that the weight/value be different than the original ones
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| 123 | if (variableTreeNode.Weight.Equals(weight) && variableTreeNode.VariableName.Equals(variableName)) return;
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| 124 | variableTreeNode.Weight = weight;
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| 125 | variableTreeNode.VariableName = variableName;
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| 126 | DialogResult = DialogResult.OK;
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[8935] | 127 | var dialogValidated = DialogValidated;
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| 128 | if (dialogValidated != null)
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| 129 | dialogValidated(sender, e);
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| 130 | }
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| 131 |
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| 132 | private void cancelButton_Click(object sender, EventArgs e) {
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| 133 | Close();
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| 134 | }
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| 135 |
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| 136 | private void okButton_Click(object sender, EventArgs e) {
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| 137 | if (ValidateChildren()) {
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| 138 | OnDialogValidated(this, e);
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| 139 | Close();
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| 140 | }
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| 141 | }
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[8409] | 142 | }
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| 143 | }
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