Inertia – Blame information for rev 1
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Rev | Author | Line No. | Line |
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1 | office | 1 | using System; |
2 | using System.ComponentModel; |
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3 | using System.Diagnostics; |
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4 | using System.Threading; |
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5 | using System.Threading.Tasks; |
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6 | using System.Windows.Forms; |
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7 | using WindowsInput; |
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8 | using AutoUpdaterDotNET; |
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9 | using Gma.System.MouseKeyHook; |
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10 | |||
11 | namespace Inertia |
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12 | { |
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13 | public partial class Form1 : Form |
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14 | { |
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15 | #region Static Fields and Constants |
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16 | |||
17 | private static IKeyboardMouseEvents _globalMouseKeyHook; |
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18 | |||
19 | private static InputSimulator _inputSimulator; |
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20 | |||
21 | private static ScheduledContinuation _scrollUpContinuation; |
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22 | |||
23 | private static long _upDelta; |
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24 | |||
25 | private static long _downDelta; |
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26 | |||
27 | private static ScheduledContinuation _scrollDownContinuation; |
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28 | |||
29 | private static CancellationTokenSource _scrollCancellationTokenSource; |
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30 | |||
31 | #endregion |
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32 | |||
33 | #region Private Delegates, Events, Enums, Properties, Indexers and Fields |
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34 | |||
35 | private AboutForm _aboutForm; |
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36 | |||
37 | #endregion |
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38 | |||
39 | #region Constructors, Destructors and Finalizers |
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40 | |||
41 | public Form1() |
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42 | { |
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43 | InitializeComponent(); |
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44 | AutoUpdater.Start("http://inertia.grimore.org/update/update.xml"); |
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45 | |||
46 | _inputSimulator = new InputSimulator(); |
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47 | |||
48 | _globalMouseKeyHook = Hook.GlobalEvents(); |
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49 | _globalMouseKeyHook.MouseWheel += GlobalMouseKeyHookMouseWheel; |
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50 | |||
51 | _scrollUpContinuation = new ScheduledContinuation(); |
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52 | _scrollDownContinuation = new ScheduledContinuation(); |
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53 | } |
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54 | |||
55 | /// <summary> |
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56 | /// Clean up any resources being used. |
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57 | /// </summary> |
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58 | /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param> |
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59 | protected override void Dispose(bool disposing) |
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60 | { |
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61 | if (disposing && components != null) |
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62 | { |
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63 | _globalMouseKeyHook.MouseWheel -= GlobalMouseKeyHookMouseWheel; |
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64 | _globalMouseKeyHook.Dispose(); |
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65 | |||
66 | components.Dispose(); |
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67 | } |
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68 | |||
69 | base.Dispose(disposing); |
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70 | } |
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71 | |||
72 | #endregion |
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73 | |||
74 | #region Event Handlers |
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75 | |||
76 | private static void GlobalMouseKeyHookMouseWheel(object sender, MouseEventArgs e) |
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77 | { |
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78 | var delta = Math.Abs(e.Delta); |
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79 | |||
80 | switch (Math.Sign(e.Delta)) |
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81 | { |
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82 | case 0: |
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83 | break; |
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84 | case 1: // up |
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85 | Interlocked.Add(ref _upDelta, delta); |
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86 | _scrollUpContinuation.Schedule(TimeSpan.FromMilliseconds(50), ScrollUp); |
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87 | Debug.WriteLine($"Mouse wheel moved up by {e.Delta}."); |
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88 | break; |
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89 | case -1: // down |
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90 | Interlocked.Add(ref _downDelta, delta); |
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91 | _scrollDownContinuation.Schedule(TimeSpan.FromMilliseconds(50), ScrollDown); |
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92 | Debug.WriteLine($"Mouse wheel moved down by {e.Delta}."); |
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93 | break; |
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94 | } |
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95 | } |
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96 | |||
97 | private void AboutToolStripMenuItem_Click(object sender, EventArgs e) |
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98 | { |
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99 | if (_aboutForm != null) |
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100 | { |
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101 | return; |
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102 | } |
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103 | |||
104 | _aboutForm = new AboutForm(); |
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105 | _aboutForm.Closing += AboutForm_Closing; |
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106 | _aboutForm.Show(); |
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107 | } |
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108 | |||
109 | private void AboutForm_Closing(object sender, CancelEventArgs e) |
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110 | { |
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111 | if (_aboutForm == null) |
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112 | { |
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113 | return; |
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114 | } |
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115 | |||
116 | _aboutForm.Closing -= AboutForm_Closing; |
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117 | _aboutForm.Dispose(); |
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118 | _aboutForm = null; |
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119 | } |
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120 | |||
121 | private void QuitToolStripMenuItem_Click(object sender, EventArgs e) |
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122 | { |
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123 | Application.Exit(); |
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124 | } |
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125 | |||
126 | #endregion |
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127 | |||
128 | #region Private Methods |
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129 | |||
130 | private static async void ScrollDown() |
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131 | { |
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132 | var downDelta = Interlocked.Read(ref _downDelta); |
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133 | var delta = Math.Abs(downDelta / SystemInformation.MouseWheelScrollDelta); |
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134 | Interlocked.Exchange(ref _downDelta, 0); |
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135 | |||
136 | Debug.WriteLine($"Down event expired with delta {delta}"); |
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137 | |||
138 | if (_scrollCancellationTokenSource != null) |
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139 | { |
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140 | _scrollCancellationTokenSource.Cancel(); |
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141 | } |
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142 | |||
143 | _scrollCancellationTokenSource = new CancellationTokenSource(); |
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144 | var cancellationToken = _scrollCancellationTokenSource.Token; |
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145 | |||
146 | _globalMouseKeyHook.MouseWheel -= GlobalMouseKeyHookMouseWheel; |
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147 | |||
148 | try |
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149 | { |
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150 | await ScrollDown((int) delta, cancellationToken); |
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151 | } |
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152 | finally |
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153 | { |
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154 | _globalMouseKeyHook.MouseWheel += GlobalMouseKeyHookMouseWheel; |
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155 | } |
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156 | } |
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157 | |||
158 | private static async void ScrollUp() |
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159 | { |
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160 | var upDelta = Interlocked.Read(ref _upDelta); |
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161 | var delta = Math.Abs(upDelta / SystemInformation.MouseWheelScrollDelta); |
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162 | Interlocked.Exchange(ref _upDelta, 0); |
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163 | |||
164 | Debug.WriteLine($"Up event expired with delta {delta}"); |
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165 | |||
166 | if (_scrollCancellationTokenSource != null) |
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167 | { |
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168 | _scrollCancellationTokenSource.Cancel(); |
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169 | } |
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170 | |||
171 | _scrollCancellationTokenSource = new CancellationTokenSource(); |
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172 | var cancellationToken = _scrollCancellationTokenSource.Token; |
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173 | |||
174 | _globalMouseKeyHook.MouseWheel -= GlobalMouseKeyHookMouseWheel; |
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175 | |||
176 | try |
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177 | { |
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178 | await ScrollUp((int) delta, cancellationToken); |
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179 | } |
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180 | finally |
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181 | { |
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182 | _globalMouseKeyHook.MouseWheel += GlobalMouseKeyHookMouseWheel; |
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183 | } |
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184 | } |
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185 | |||
186 | private static async Task ScrollUp(int delta, CancellationToken cancellationToken) |
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187 | { |
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188 | while (!cancellationToken.IsCancellationRequested && delta > 0) |
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189 | { |
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190 | _inputSimulator.Mouse.VerticalScroll(delta); |
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191 | await Task.Delay(25 * delta, cancellationToken); |
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192 | Debug.WriteLine($"Moving: {delta}"); |
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193 | delta = (int) Math.Log(delta, 2); |
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194 | } |
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195 | } |
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196 | |||
197 | private static async Task ScrollDown(int delta, CancellationToken cancellationToken) |
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198 | { |
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199 | while (!cancellationToken.IsCancellationRequested && delta > 0) |
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200 | { |
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201 | _inputSimulator.Mouse.VerticalScroll(-delta); |
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202 | await Task.Delay(25 * delta, cancellationToken); |
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203 | Debug.WriteLine($"Moving: {delta}"); |
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204 | delta = (int) Math.Log(delta, 2); |
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205 | } |
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206 | } |
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207 | |||
208 | #endregion |
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209 | } |
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210 | } |