1 | using System;
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2 | using System.Collections.Generic;
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3 | using System.ComponentModel;
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4 | using System.Drawing;
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5 | using System.Linq;
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6 | using System.Windows.Forms;
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7 |
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8 | namespace Common
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9 | {
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10 | public partial class FormProgress : Form
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11 | {
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12 | public List<Progress> Tasks;
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13 | public DateTime StartTime;
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14 | public Progress CurrentTask;
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15 |
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16 | public FormProgress()
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17 | {
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18 | InitializeComponent();
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19 |
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20 | Tasks = new List<Progress>();
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21 | CurrentTask = null;
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22 | }
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23 |
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24 | private void timer1_Tick(object sender, EventArgs e)
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25 | {
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26 | int steps = 10000;
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27 | int total = Tasks.Count * steps;
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28 | int current;
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29 | int index = Tasks.IndexOf(CurrentTask);
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30 | if (index >= 0)
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31 | {
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32 | current = index * steps;
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33 | if (CurrentTask.Total > 0) current += (int)(index + ((double)CurrentTask.Current / CurrentTask.Total) * steps);
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34 | }
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35 | else current = 0;
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36 | progressBar1.Maximum = total;
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37 | if (current <= total) progressBar1.Value = current;
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38 | else progressBar1.Value = total;
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39 | progressBar1.Visible = current > 0;
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40 | if (CurrentTask != null) labelOperation.Text = CurrentTask.Operation;
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41 | else labelOperation.Text = "";
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42 | if ((current > 0) && (total > 0))
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43 | {
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44 | TimeSpan timeDiff = TimeSpan.FromSeconds((DateTime.Now - StartTime).TotalSeconds / current * (total - current));
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45 | string remaining = timeDiff.ToString(@"hh\:mm\:ss");
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46 | if (timeDiff.TotalDays >= 1) remaining = Math.Truncate(timeDiff.TotalDays) + " days " + remaining;
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47 | labelTime.Text = @"Remaining time: " + remaining;
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48 | }
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49 | else labelTime.Text = "";
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50 | }
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51 |
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52 | private void FormProgress_Load(object sender, EventArgs e)
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53 | {
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54 | Theme.UseTheme(this);
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55 | DpiScaling.Apply(this);
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56 | Icon = Icon.ExtractAssociatedIcon(Application.ExecutablePath);
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57 |
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58 | timer1_Tick(this, null);
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59 | timer1.Enabled = true;
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60 | progressBar1.Visible = false;
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61 | }
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62 |
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63 | private void FormProgress_FormClosing(object sender, FormClosingEventArgs e)
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64 | {
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65 | CurrentTask.Terminated = true;
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66 | timer1.Enabled = false;
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67 | }
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68 |
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69 | private void bg_DoWork(object sender, DoWorkEventArgs e)
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70 | {
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71 | CurrentTask.Execute();
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72 | CurrentTask.Completed = !CurrentTask.Terminated;
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73 | }
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74 |
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75 | private void bg_DoWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
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76 | {
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77 | if (e.Error != null)
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78 | {
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79 | CurrentTask.Terminated = true;
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80 | MessageBox.Show(e.Error.Message, @"Error in background task", MessageBoxButtons.OK, MessageBoxIcon.Error);
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81 | }
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82 | if (!CurrentTask.Terminated)
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83 | {
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84 | int nextIndex = Tasks.IndexOf(CurrentTask) + 1;
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85 | if (nextIndex < Tasks.Count)
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86 | {
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87 | CurrentTask = Tasks[nextIndex];
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88 | BackgroundWorker bg = new BackgroundWorker();
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89 | bg.DoWork += bg_DoWork;
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90 | bg.RunWorkerCompleted += bg_DoWorkerCompleted;
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91 | bg.RunWorkerAsync();
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92 | }
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93 | else Close();
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94 | }
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95 | else Close();
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96 | }
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97 |
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98 | public void AddTask(string name, Progress.CallbackEventHandler progressCallback)
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99 | {
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100 | Progress newTask = new Progress
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101 | {
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102 | Terminated = false,
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103 | Total = 0,
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104 | Current = 0,
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105 | Operation = name
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106 | };
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107 | newTask.Callback += progressCallback;
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108 | Tasks.Add(newTask);
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109 | }
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110 |
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111 | public void StartTask(string name, Progress.CallbackEventHandler progressCallback)
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112 | {
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113 | Tasks.Clear();
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114 | AddTask(name, progressCallback);
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115 | Start();
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116 | }
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117 |
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118 | public void Start()
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119 | {
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120 | if (Tasks.Count > 0)
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121 | {
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122 | StartTime = DateTime.Now;
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123 | CurrentTask = Tasks.First();
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124 | BackgroundWorker bg = new BackgroundWorker();
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125 | bg.DoWork += bg_DoWork;
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126 | bg.RunWorkerCompleted += bg_DoWorkerCompleted;
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127 | bg.RunWorkerAsync();
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128 | ShowDialog();
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129 | }
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130 | }
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131 |
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132 | public bool Completed()
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133 | {
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134 | int completed = 0;
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135 | foreach (var task in Tasks)
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136 | {
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137 | if (task.Completed) completed += 1;
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138 | }
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139 | return completed == Tasks.Count;
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140 | }
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141 | }
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142 |
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143 | public interface IProgress
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144 | {
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145 | void SetTotal(int value);
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146 | void SetProgress(int value);
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147 | bool GetTerminated();
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148 | void SetOperation(string text);
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149 | void Execute();
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150 | }
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151 |
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152 | public class Progress : IProgress
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153 | {
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154 | public int Total;
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155 | public int Current;
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156 | public bool Terminated;
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157 | public bool Completed; // If task was not terminated during execution.
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158 | public string Operation;
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159 | public delegate void CallbackEventHandler(Progress progress);
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160 | public event CallbackEventHandler Callback;
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161 |
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162 | public void SetTotal(int value)
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163 | {
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164 | Total = value;
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165 | }
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166 |
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167 | public void SetProgress(int value)
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168 | {
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169 | Current = value;
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170 | }
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171 |
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172 | public bool GetTerminated()
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173 | {
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174 | return Terminated;
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175 | }
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176 |
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177 | public void SetOperation(string text)
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178 | {
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179 | Operation = text;
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180 | }
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181 |
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182 | public void Execute()
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183 | {
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184 | Callback?.Invoke(this);
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185 | }
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186 | }
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187 | }
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