1 | using System;
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2 | using System.Collections.Generic;
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3 | using System.Text;
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4 | using System.Collections;
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5 | using System.Diagnostics;
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6 | using System.IO;
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7 |
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8 | namespace Netron.Diagramming.Core
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9 | {
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10 | // ----------------------------------------------------------------------
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11 | /// <summary>
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12 | /// Our custom "clipboard" for copying diagram elements (or anything else
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13 | /// for that matter) to.
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14 | /// </summary>
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15 | // ----------------------------------------------------------------------
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16 | public static class NetronClipboard
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17 | {
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18 | // ------------------------------------------------------------------
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19 | /// <summary>
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20 | /// The items on the clipboard.
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21 | /// </summary>
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22 | // ------------------------------------------------------------------
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23 | static ArrayList items = new ArrayList();
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24 |
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25 | // ------------------------------------------------------------------
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26 | /// <summary>
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27 | /// Gets the collection of all items.
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28 | /// </summary>
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29 | // ------------------------------------------------------------------
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30 | public static ArrayList Items
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31 | {
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32 | get
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33 | {
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34 | return items;
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35 | }
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36 | }
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37 |
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38 | // ------------------------------------------------------------------
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39 | /// <summary>
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40 | /// Adds the item to the collection.
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41 | /// </summary>
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42 | /// <param name="item">object</param>
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43 | /// <returns>int</returns>
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44 | // ------------------------------------------------------------------
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45 | public static int Add(object item)
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46 | {
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47 | return items.Add(item);
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48 | }
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49 |
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50 | public static int AddStream(MemoryStream stream)
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51 | {
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52 | return items.Add(stream);
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53 | }
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54 |
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55 | // ------------------------------------------------------------------
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56 | /// <summary>
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57 | /// Clears the collection.
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58 | /// </summary>
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59 | // ------------------------------------------------------------------
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60 | public static void Clear()
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61 | {
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62 | items.Clear();
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63 | }
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64 |
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65 | // ------------------------------------------------------------------
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66 | /// <summary>
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67 | /// Returns if we have any items of the type specified.
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68 | /// </summary>
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69 | /// <param name="type">Type</param>
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70 | /// <returns>bool</returns>
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71 | // ------------------------------------------------------------------
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72 | public static bool ContainsData(Type type)
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73 | {
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74 | foreach (Object obj in items)
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75 | {
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76 | if (obj.GetType() == type)
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77 | {
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78 | return true;
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79 | }
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80 | }
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81 | return false;
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82 | }
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83 |
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84 | // ------------------------------------------------------------------
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85 | /// <summary>
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86 | /// Gets all items of the type specified.
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87 | /// </summary>
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88 | /// <param name="type"></param>
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89 | /// <returns></returns>
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90 | // ------------------------------------------------------------------
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91 | public static ArrayList GetAll(Type type)
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92 | {
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93 | ArrayList subitems = new ArrayList();
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94 | foreach (Object obj in items)
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95 | {
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96 | if (obj.GetType() == type)
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97 | {
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98 | subitems.Add(obj);
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99 | }
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100 | }
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101 | return subitems;
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102 | }
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103 |
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104 | // ------------------------------------------------------------------
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105 | /// <summary>
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106 | /// Returns the FIRST item found that has the type specified.
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107 | /// </summary>
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108 | /// <param name="type">Type</param>
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109 | /// <returns>object</returns>
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110 | // ------------------------------------------------------------------
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111 | public static object Get(Type type)
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112 | {
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113 | foreach (Object obj in items)
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114 | {
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115 | if (obj.GetType() == type)
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116 | {
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117 | return obj;
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118 | }
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119 | }
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120 | return null;
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121 | }
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122 |
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123 | public static MemoryStream GetMemoryStream()
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124 | {
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125 | foreach (object obj in items)
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126 | {
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127 | if (obj is MemoryStream)
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128 | {
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129 | return obj as MemoryStream;
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130 | }
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131 | }
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132 |
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133 | return null;
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134 | }
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135 | }
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136 | }
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