[8975] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[12009] | 3 | * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[8975] | 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.Collections.Generic;
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| 23 | using System.ComponentModel;
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| 24 | using System.Globalization;
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| 25 | using System.Linq;
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| 26 | using System.Windows.Forms;
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| 27 | using HeuristicLab.Common;
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| 28 |
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| 29 | namespace HeuristicLab.MainForm.WindowsForms {
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| 30 | public partial class DefineArithmeticProgressionDialog : Form {
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| 31 | private bool allowOnlyInteger;
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| 32 |
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| 33 | public double Minimum { get; private set; }
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| 34 | public double Maximum { get; private set; }
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| 35 | public double Step { get; private set; }
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| 36 |
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| 37 | public IEnumerable<double> Values {
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| 38 | get { return EnumerateProgression().Reverse(); }
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| 39 | }
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| 40 |
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| 41 | public DefineArithmeticProgressionDialog() {
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| 42 | InitializeComponent();
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| 43 | Icon = HeuristicLab.Common.Resources.HeuristicLab.Icon;
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| 44 | Minimum = 0; Maximum = 100; Step = 10;
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| 45 | }
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| 46 | public DefineArithmeticProgressionDialog(bool allowOnlyInteger)
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| 47 | : this() {
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| 48 | this.allowOnlyInteger = allowOnlyInteger;
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| 49 | }
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| 50 | public DefineArithmeticProgressionDialog(bool allowOnlyInteger, double minimum, double maximum, double step)
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| 51 | : this(allowOnlyInteger) {
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| 52 | Minimum = minimum;
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| 53 | Maximum = maximum;
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| 54 | Step = step;
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| 55 | }
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| 56 |
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| 57 | private void DefineArithmeticProgressionDialog_Load(object sender, System.EventArgs e) {
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| 58 | minimumTextBox.Text = Minimum.ToString();
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| 59 | maximumTextBox.Text = Maximum.ToString();
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| 60 | stepSizeTextBox.Text = Step.ToString();
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| 61 | }
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| 62 |
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| 63 | private void textBox_Validating(object sender, CancelEventArgs e) {
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| 64 | var textBox = (TextBox)sender;
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| 65 | double value = 0;
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| 66 | if (allowOnlyInteger) {
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| 67 | int intValue;
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| 68 | if (!int.TryParse(textBox.Text, out intValue)) {
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| 69 | errorProvider.SetError(textBox, "Please enter a valid integer value.");
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| 70 | e.Cancel = true;
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| 71 | return;
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| 72 | } else {
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| 73 | value = intValue;
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| 74 | errorProvider.SetError(textBox, null);
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| 75 | }
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| 76 | } else {
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| 77 | if (!double.TryParse(textBox.Text, NumberStyles.Float, CultureInfo.CurrentCulture.NumberFormat, out value)) {
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| 78 | errorProvider.SetError(textBox, "Please enter a valid double value.");
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| 79 | e.Cancel = true;
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| 80 | return;
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| 81 | } else errorProvider.SetError(textBox, null);
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| 82 | }
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| 83 | if (textBox == minimumTextBox) Minimum = value;
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| 84 | else if (textBox == maximumTextBox) Maximum = value;
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| 85 | else if (textBox == stepSizeTextBox) Step = value;
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| 86 | okButton.Enabled = IsValid();
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| 87 | }
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| 88 |
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| 89 | private bool IsValid() {
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| 90 | return Minimum <= Maximum && Step >= 0;
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| 91 | }
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| 92 |
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| 93 | private IEnumerable<double> EnumerateProgression() {
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| 94 | double value = Maximum;
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| 95 | bool minimumIncluded = false;
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| 96 | int i = 1;
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| 97 | while (value >= Minimum) {
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| 98 | if (value.IsAlmost(Minimum)) {
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| 99 | yield return Minimum;
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| 100 | minimumIncluded = true;
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| 101 | } else yield return value;
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| 102 |
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| 103 | if (Step == 0) break; // a step size of 0 will only output maximum and minimum
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| 104 | if (allowOnlyInteger) {
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| 105 | value = (int)Maximum - i * (int)Step;
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| 106 | } else {
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| 107 | value = Maximum - i * Step;
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| 108 | }
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| 109 | i++;
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| 110 | }
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| 111 | if (!minimumIncluded) {
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| 112 | yield return Minimum;
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| 113 | }
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| 114 | }
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| 115 | }
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| 116 | }
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