ui/wpf/UIcore/Application.cs

Thu, 21 Jan 2016 20:40:14 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Thu, 21 Jan 2016 20:40:14 +0100
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child 135
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permissions
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added grid spacing (WPF)

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1 using System;
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2 using System.Collections.Generic;
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3 using System.Linq;
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4 using System.Text;
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5 using System.Threading;
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6 using System.Threading.Tasks;
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7 using System.Windows;
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8
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9 namespace UI
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10 {
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11 public class Application
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12 {
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13 private static Application instance;
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14
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15 private System.Windows.Application application;
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16
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17 private Thread thread;
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18 private Queue<Action> queue = new Queue<Action>();
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19 private object sync = new object();
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20 private object result = new object();
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21 private Boolean main = false;
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22
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23 public String Name;
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24 public List<Window> Windows = new List<Window>();
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25 public ApplicationMenu Menu = new ApplicationMenu();
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26 public MainToolBar ToolBar = new MainToolBar();
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27
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28 private Application() : base()
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29 {
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30 thread = new Thread(() => Run());
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31 thread.SetApartmentState(ApartmentState.STA);
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32 thread.Start();
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33 }
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34
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35 public static Application GetInstance()
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36 {
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37 if (instance == null)
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38 {
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39 instance = new Application();
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40 GC.KeepAlive(instance);
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41 }
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42 return instance;
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43 }
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44
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45 public Thread Start()
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46 {
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47 lock(sync)
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48 {
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49 queue.Enqueue(() => RunApplication());
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50 Monitor.Pulse(sync);
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51 }
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52 return thread;
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53 }
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54
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55 private void RunApplication()
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56 {
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57 application = new System.Windows.Application();
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58 main = true;
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59 application.Run();
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60 }
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61
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62 public void Run()
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63 {
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64 lock(sync)
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65 {
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66 for (;;)
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67 {
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68 Monitor.Wait(sync);
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69 Action action = queue.Dequeue();
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70 action.Invoke();
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71 lock (result)
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72 {
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73 Monitor.Pulse(result);
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74 }
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75 if (main)
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76 {
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77 // end loop after shutdown
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78 break;
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79 }
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80 }
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81 }
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82 }
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83
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84 public T Exec<T>(Func<T> func)
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85 {
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86 ResultExec<T> e = new ResultExec<T>();
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87 e.Func = func;
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88
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89 if (Thread.CurrentThread.GetApartmentState() == ApartmentState.STA)
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90 {
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91 e.Exec();
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92 return e.Result;
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93 }
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94 else
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95 {
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96 lock (sync)
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97 {
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98 queue.Enqueue(() => e.Exec());
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99 Monitor.Pulse(sync);
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100 }
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101 lock (result)
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102 {
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103 Monitor.Wait(result);
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104 }
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105
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106 return e.Result;
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107 }
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108 }
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109
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110 public void Exec(Action action)
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111 {
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112 if (Thread.CurrentThread.GetApartmentState() == ApartmentState.STA)
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113 {
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114 action.Invoke();
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115 }
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116 else
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117 {
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118 lock (sync)
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119 {
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120 queue.Enqueue(action);
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121 Monitor.Pulse(sync);
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122 }
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123 lock (result)
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124 {
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125 Monitor.Wait(result);
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126 }
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127 }
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128 }
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129
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130 public void AddWindow(Window window)
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131 {
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132 Windows.Add(window);
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133 }
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134
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135 public void RemoveWindow(Window window)
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136 {
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137 Windows.Remove(window);
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138 if (Windows.Count == 0)
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139 {
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140 application.Shutdown();
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141 }
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142 }
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143 }
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144
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145 public class ResultExec<T>
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146 {
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147 public T Result;
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148 public Func<T> Func;
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149
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150 public void Exec()
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151 {
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152 Result = Func.Invoke();
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153 }
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154 }
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155
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156 public class VoidExec
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157 {
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158 public Action Action;
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159
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160 public void Exec()
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161 {
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162 Action.Invoke();
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163 }
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164 }
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165 }

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