1 | using System;
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2 | using System.IO;
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3 | using System.Collections.Generic;
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4 | using System.Text;
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5 | using System.ComponentModel;
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6 | using System.Windows.Forms;
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7 | using System.Drawing;
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8 | using System.Drawing.Printing;
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9 | using System.Collections;
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10 | namespace Netron.Diagramming.Core
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11 | {
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12 | /// <summary>
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13 | /// Abstract base class for the various diagram control representations
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14 | /// (WebForm and WinForm).
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15 | /// </summary>
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16 | [ ToolboxItem(false) ]
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17 | public class DiagramControlBase :
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18 | ScrollableControl,
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19 | ISupportInitialize,
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20 | IDiagramControl
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21 | {
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22 | #region Constants
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23 | protected const string constGeneral = "General";
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24 | #endregion
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25 |
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26 | #region Events
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27 | /// <summary>
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28 | /// Occurs when the something got selected and the properties of it can/should be shown.
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29 | /// </summary>
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30 | [Category(constGeneral),
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31 | Description("Occurs when the something got selected and the " +
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32 | "properties of it can/should be shown."),
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33 | Browsable(true)]
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34 | public event EventHandler<SelectionEventArgs> OnShowSelectionProperties;
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35 | /// <summary>
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36 | /// Occurs when the Properties have changed
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37 | /// </summary>
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38 | [Category(constGeneral),
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39 | Description("Occurs when the properties have changed."),
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40 | Browsable(true)]
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41 | public event EventHandler<PropertiesEventArgs> OnShowDocumentProperties;
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42 | /// <summary>
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43 | /// Occurs when the properties of the canvas are exposed.
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44 | /// </summary>
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45 | public event EventHandler<SelectionEventArgs> OnShowCanvasProperties;
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46 | /// <summary>
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47 | /// Occurs when an entity is added.
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48 | /// <remarks>This event usually is bubbled from one of the layers</remarks>
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49 | /// </summary>
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50 | [Category(constGeneral), Description("Occurs when an entity is added."), Browsable(true)]
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51 | public event EventHandler<EntityEventArgs> OnEntityAdded;
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52 | /// <summary>
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53 | /// Occurs when an entity is removed.
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54 | /// <remarks>This event usually is bubbled from one of the layers</remarks>
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55 | /// </summary>
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56 | [Category(constGeneral), Description("Occurs when an entity is removed."), Browsable(true)]
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57 | public event EventHandler<EntityEventArgs> OnEntityRemoved;
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58 | /// <summary>
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59 | /// Occurs on opening a file
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60 | /// </summary>
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61 | [Category(constGeneral), Description("Occurs when the control will open a file."), Browsable(true)]
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62 | public event EventHandler<FileEventArgs> OnOpeningDiagram;
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63 | /// <summary>
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64 | /// Occurs when a file was opened
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65 | /// </summary>
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66 | [Category(constGeneral), Description(" Occurs when a file was opened."), Browsable(true)]
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67 | public event EventHandler<FileEventArgs> OnDiagramOpened;
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68 | /// <summary>
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69 | /// Occurs when the history has changed in the undo/redo mechanism
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70 | /// </summary>
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71 | public event EventHandler<HistoryChangeEventArgs> OnHistoryChange;
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72 | /// <summary>
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73 | /// Occurs before saving a diagram
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74 | /// </summary>
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75 | [Category(constGeneral), Description("Occurs before saving a diagram."), Browsable(true)]
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76 | public event EventHandler<FileEventArgs> OnSavingDiagram;
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77 | /// <summary>
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78 | /// Occurs after saving a diagram
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79 | /// </summary>
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80 | [Category(constGeneral), Description("Occurs after saving a diagram."), Browsable(true)]
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81 | public event EventHandler<FileEventArgs> OnDiagramSaved;
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82 | /// <summary>
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83 | /// Occurs when the control resets the document internally, usually through the Ctrl+N hotkey.
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84 | /// </summary>
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85 | [Category(constGeneral), Description("Occurs when the control resets the document internally, usually through the Ctrl+N hotkey."), Browsable(true)]
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86 | public event EventHandler OnNewDiagram;
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87 |
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88 | #region Event raisers
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89 |
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90 | /// <summary>
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91 | /// Raises the OnShowCanvasProperties event.
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92 | /// </summary>
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93 | protected void RaiseOnShowCanvasProperties(SelectionEventArgs e)
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94 | {
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95 | EventHandler<SelectionEventArgs> handler = OnShowCanvasProperties;
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96 | if (handler != null)
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97 | {
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98 | handler(this, e);
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99 | }
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100 | }
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101 | /// <summary>
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102 | /// Raises the OnNewDiagram event.
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103 | /// </summary>
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104 | protected void RaiseOnNewDiagram()
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105 | {
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106 | EventHandler handler = OnNewDiagram;
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107 | if (handler != null)
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108 | {
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109 | handler(this, EventArgs.Empty);
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110 | }
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111 | }
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112 | /// <summary>
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113 | /// Raises the OnHistory change.
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114 | /// </summary>
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115 | protected void RaiseOnHistoryChange(HistoryChangeEventArgs e)
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116 | {
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117 | EventHandler<HistoryChangeEventArgs> handler = OnHistoryChange;
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118 | if (handler != null)
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119 | {
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120 | handler(this, e);
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121 | }
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122 | }
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123 | /// <summary>
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124 | /// Raises the <see cref="OnShowDocumentProperties"/> event
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125 | /// </summary>
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126 | /// <param name="e">Properties event argument</param>
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127 | protected virtual void RaiseOnShowDocumentProperties(PropertiesEventArgs e)
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128 | {
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129 | EventHandler<PropertiesEventArgs> handler = OnShowDocumentProperties;
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130 | if (handler != null)
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131 | {
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132 | handler(this, e);
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133 | }
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134 | }
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135 | /// <summary>
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136 | /// Raises the OnSavingDiagram event
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137 | /// </summary>
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138 | /// <param name="filePath"></param>
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139 | public void RaiseOnSavingDiagram(string filePath)
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140 | {
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141 | if(OnSavingDiagram != null)
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142 | OnSavingDiagram(this, new FileEventArgs(new System.IO.FileInfo(filePath)));
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143 | }
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144 | /// <summary>
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145 | /// Raises the OnShowSelectionProperties event.
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146 | /// </summary>
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147 | /// <param name="e">The <see cref="T:Netron.Diagramming.Core.SelectionEventArgs"/> instance containing the event data.</param>
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148 | protected virtual void RaiseOnShowSelectionProperties(SelectionEventArgs e)
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149 | {
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150 | EventHandler<SelectionEventArgs> handler = OnShowSelectionProperties;
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151 | if (handler != null)
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152 | {
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153 | handler(this, e);
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154 | }
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155 | }
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156 | /// <summary>
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157 | /// Raises the <see cref="OnEntityAdded"/> event.
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158 | /// </summary>
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159 | /// <param name="e">The <see cref="T:Netron.Diagramming.Core.EntityEventArgs"/> instance containing the event data.</param>
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160 | protected virtual void RaiseOnEntityAdded(EntityEventArgs e)
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161 | {
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162 | EventHandler<EntityEventArgs> handler = OnEntityAdded;
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163 | if (handler != null)
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164 | {
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165 | handler(this, e);
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166 | }
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167 | }
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168 | /// <summary>
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169 | /// Raises the <see cref="OnEntityRemoved"/>.
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170 | /// </summary>
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171 | /// <param name="e">The <see cref="T:Netron.Diagramming.Core.EntityEventArgs"/> instance containing the event data.</param>
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172 | protected virtual void RaiseOnEntityRemoved(EntityEventArgs e)
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173 | {
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174 | EventHandler<EntityEventArgs> handler = OnEntityRemoved;
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175 | if (handler != null)
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176 | {
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177 | handler(this, e);
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178 | }
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179 | }
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180 | /// <summary>
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181 | /// Raises the OnDiagramSaved event
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182 | /// </summary>
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183 | /// <param name="filePath"></param>
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184 | public void RaiseOnDiagramSaved(string filePath)
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185 | {
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186 | if(OnDiagramSaved != null)
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187 | OnDiagramSaved(this, new FileEventArgs(new System.IO.FileInfo(filePath)));
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188 | }
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189 | /// <summary>
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190 | /// Raises the OnOpeningDiagram event
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191 | /// </summary>
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192 | public void RaiseOnOpeningDiagram(string filePath)
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193 | {
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194 | if(OnOpeningDiagram != null)
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195 | OnOpeningDiagram(this, new FileEventArgs(new System.IO.FileInfo(filePath)));
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196 | }
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197 | /// <summary>
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198 | /// Raises the OnDiagramOpened event
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199 | /// </summary>
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200 | public void RaiseOnDiagramOpened(string filePath)
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201 | {
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202 | if(OnDiagramOpened != null)
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203 | OnDiagramOpened(this, new FileEventArgs(new System.IO.FileInfo(filePath)));
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204 | }
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205 | #endregion
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206 |
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207 |
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208 | #endregion
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209 |
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210 | #region Fields
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211 |
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212 | // ------------------------------------------------------------------
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213 | /// <summary>
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214 | /// The page settings for printing the diagram.
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215 | /// </summary>
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216 | // ------------------------------------------------------------------
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217 | protected PageSettings mPageSettings;
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218 |
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219 | // ------------------------------------------------------------------
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220 | /// <summary>
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221 | /// The filename to use when saving the diagram.
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222 | /// </summary>
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223 | // ------------------------------------------------------------------
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224 | protected string mFileName = "";
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225 |
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226 | // ------------------------------------------------------------------
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227 | /// <summary>
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228 | /// Collection of files that were opened. The collection can be
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229 | /// saved to disk by calling 'SaveRecentFiles(string path)'.
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230 | /// </summary>
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231 | // ------------------------------------------------------------------
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232 | protected ArrayList myRecentFiles = new ArrayList();
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233 |
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234 | // ------------------------------------------------------------------
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235 | /// <summary>
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236 | /// the view
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237 | /// </summary>
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238 | // ------------------------------------------------------------------
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239 | protected IView mView;
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240 |
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241 | // ------------------------------------------------------------------
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242 | /// <summary>
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243 | /// the controller
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244 | /// </summary>
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245 | // ------------------------------------------------------------------
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246 | protected IController mController;
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247 |
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248 | // ------------------------------------------------------------------
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249 | /// <summary>
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250 | /// the Document field
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251 | /// </summary>
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252 | // ------------------------------------------------------------------
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253 | protected Document mDocument;
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254 | protected bool mEnableAddConnection = true;
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255 |
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256 |
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257 | #endregion
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258 |
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259 | #region Properties
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260 |
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261 | // ------------------------------------------------------------------
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262 | /// <summary>
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263 | /// Gets or sets the page settings for the entire document.
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264 | /// </summary>
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265 | // ------------------------------------------------------------------
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266 | public PageSettings PageSettings
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267 | {
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268 | get
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269 | {
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270 | return mPageSettings;
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271 | }
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272 | set
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273 | {
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274 | mPageSettings = value;
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275 |
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276 | // PageSettings has the page size in hundreths of an inch and
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277 | // the view requires mils (thousandths of an inch).
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278 | mView.PageSize = new Size(
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279 | mPageSettings.PaperSize.Width * 10,
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280 | mPageSettings.PaperSize.Height * 10);
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281 | mView.Landscape = mPageSettings.Landscape;
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282 | }
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283 | }
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284 |
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285 | // ------------------------------------------------------------------
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286 | /// <summary>
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287 | /// Specifies if all shape's connectors are shown.
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288 | /// </summary>
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289 | // ------------------------------------------------------------------
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290 | public bool ShowConnectors
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291 | {
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292 | get
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293 | {
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294 | return this.mView.ShowConnectors;
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295 | }
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296 | set
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297 | {
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298 | this.mView.ShowConnectors = value;
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299 | }
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300 | }
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301 |
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302 | // ------------------------------------------------------------------
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303 | /// <summary>
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304 | /// Gets or sets the filename to save the diagram as.
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305 | /// </summary>
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306 | // ------------------------------------------------------------------
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307 | public string FileName
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308 | {
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309 | get
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310 | {
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311 | return mFileName;
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312 | }
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313 | set
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314 | {
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315 | mFileName = value;
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316 | }
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317 | }
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318 |
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319 | /// <summary>
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320 | /// Pans the diagram.
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321 | /// </summary>
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322 | /// <value>The pan.</value>
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323 | [Browsable(false)]
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324 | public Point Origin
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325 | {
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326 | get { return this.Controller.View.Origin; }
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327 | set { this.Controller.View.Origin = value; }
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328 | }
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329 | /// <summary>
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330 | /// Gets or sets the magnification/zoom.
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331 | /// </summary>
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332 | /// <value>The magnification.</value>
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333 | [Browsable(false)]
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334 | public SizeF Magnification
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335 | {
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336 | get { return this.Controller.View.Magnification; }
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337 | set { this.Controller.View.Magnification = value; }
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338 | }
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339 |
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340 | /// <summary>
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341 | /// Gets the selected items.
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342 | /// </summary>
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343 | /// <value>The selected items.</value>
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344 | [Browsable(false)]
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345 | public CollectionBase<IDiagramEntity> SelectedItems
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346 | {
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347 | get { return Selection.SelectedItems; }
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348 | }
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349 |
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350 | /// <summary>
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351 | /// Gets or sets whether to show the rulers.
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352 | /// </summary>
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353 | /// <value><c>true</c> to show the rulers; otherwise, <c>false</c>.</value>
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354 | [Browsable(true), Description("Gets or sets whether to show the rulers.")]
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355 | public bool ShowRulers
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356 | {
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357 | get { return View.ShowRulers; }
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358 | set { View.ShowRulers = value; }
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359 | }
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360 |
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361 | /// <summary>
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362 | /// Gets or sets whether a connection can be added.
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363 | /// </summary>
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364 | /// <value><c>true</c> if [enable add connection]; otherwise, <c>false</c>.</value>
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365 | [Browsable(true), Description("Gets or sets whether the user can add new connections to the diagram."), Category("Interactions")]
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366 | public bool EnableAddConnection
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367 | {
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368 | get { return mEnableAddConnection; }
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369 | set { mEnableAddConnection = value; }
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370 | }
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371 |
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372 | #endregion
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373 |
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374 | #region Constructor
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375 | /// <summary>
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376 | /// Default constructor
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377 | /// </summary>
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378 | protected DiagramControlBase()
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379 | {
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380 | // Update the display setting.
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381 | Graphics g = CreateGraphics();
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382 | Display.DpiX = g.DpiX;
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383 | Display.DpiY = g.DpiY;
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384 |
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385 | //create the provider for all shapy diagram elements
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386 | ShapeProvider shapeProvider = new ShapeProvider();
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387 | TypeDescriptor.AddProvider(
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388 | shapeProvider,
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389 | typeof(SimpleShapeBase));
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390 |
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391 | TypeDescriptor.AddProvider(
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392 | shapeProvider,
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393 | typeof(ComplexShapeBase));
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394 |
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395 | //the provider for connections
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396 | ConnectionProvider connectionProvider =
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397 | new ConnectionProvider();
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398 |
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399 | TypeDescriptor.AddProvider(
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400 | connectionProvider,
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401 | typeof(ConnectionBase));
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402 |
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403 | //scrolling stuff
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404 | this.AutoScroll = true;
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405 | this.HScroll = true;
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406 | this.VScroll = true;
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407 |
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408 | mPageSettings = new PageSettings();
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409 | mPageSettings.Landscape = true;
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410 | mPageSettings.PaperSize = new PaperSize("Letter", 850, 1100);
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411 | }
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412 | #endregion
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413 |
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414 | #region Properties
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415 | /// <summary>
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416 | /// Gets or sets the background image displayed in the control.
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417 | /// </summary>
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418 | /// <value></value>
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419 | /// <returns>An <see cref="T:System.Drawing.Image"></see> that represents the image to display in the background of the control.</returns>
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420 | /// <PermissionSet><IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true"/></PermissionSet>
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421 | public override Image BackgroundImage
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422 | {
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423 | get
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424 | {
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425 | return base.BackgroundImage;
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426 | }
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427 | set
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428 | {
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429 | base.BackgroundImage = value;
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430 | //TODO: change the backgroundtype
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431 | }
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432 | }
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433 | //protected override void OnGiveFeedback(GiveFeedbackEventArgs gfbevent)
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434 | //{
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435 | // base.OnGiveFeedback(gfbevent);
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436 | // gfbevent.UseDefaultCursors = false;
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437 | // Cursor.Current = CursorPallet.DropShape;
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438 | //}
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439 | /// <summary>
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440 | ///
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441 | /// </summary>
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442 | [Browsable(true), Description("The background color of the canvas if the type is set to 'flat'"), Category("Appearance")]
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443 | public new Color BackColor
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444 | {
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445 | get
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446 | {
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447 |
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448 | return base.BackColor;
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449 | }
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450 | set
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451 | {
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452 | //communicate the change down to the model
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453 | //shouldn't this be done via the controller?
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454 | mDocument.Model.CurrentPage.Ambience.BackgroundColor = value;
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455 | ArtPalette.DefaultPageBackgroundColor = value;
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456 | base.BackColor = value;
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457 | this.Invalidate();
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458 | }
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459 | }
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460 | /// <summary>
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461 | /// Gets or sets the type of the background.
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462 | /// </summary>
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463 | /// <value>The type of the background.</value>
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464 | [Browsable(true), Description("The background type"), Category("Appearance"), DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
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465 | public CanvasBackgroundTypes BackgroundType
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466 | {
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467 | get { return mDocument.Model.CurrentPage.Ambience.BackgroundType; }
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468 | set { mDocument.Model.CurrentPage.Ambience.BackgroundType = value; }
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469 | }
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470 |
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471 | /// <summary>
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472 | /// Gets or sets the view.
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473 | /// </summary>
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474 | /// <value>The view.</value>
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475 | public IView View
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476 | {
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477 | get
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478 | {
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479 | return mView;
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480 | }
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481 | set
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482 | {
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483 | mView = value;
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484 | }
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485 | }
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486 |
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487 | /// <summary>
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488 | /// Gets or sets the controller.
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489 | /// </summary>
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490 | /// <value>The controller.</value>
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491 | public IController Controller
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492 | {
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493 | get
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494 | {
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495 | return mController;
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496 | }
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497 | set { AttachToController(value); }
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498 |
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499 | }
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500 |
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501 | // ------------------------------------------------------------------
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502 | /// <summary>
|
---|
503 | /// Gets or sets the Document. You must call
|
---|
504 | /// 'AttachToDocument(Document)' to apply a new document.
|
---|
505 | /// </summary>
|
---|
506 | // ------------------------------------------------------------------
|
---|
507 | public virtual Document Document
|
---|
508 | {
|
---|
509 | get { return mDocument; }
|
---|
510 | set { mDocument = value; }
|
---|
511 | }
|
---|
512 |
|
---|
513 |
|
---|
514 | #endregion
|
---|
515 |
|
---|
516 | #region Methods
|
---|
517 |
|
---|
518 | // ------------------------------------------------------------------
|
---|
519 | /// <summary>
|
---|
520 | /// Saves all recently opened files to the path specified. The files
|
---|
521 | /// are saved to a simple text file, one filename per line.
|
---|
522 | /// </summary>
|
---|
523 | /// <param name="path"></param>
|
---|
524 | /// <param name="maxFiles">int: The max number of filenams to
|
---|
525 | /// save.</param>
|
---|
526 | // ------------------------------------------------------------------
|
---|
527 | public virtual void SaveRecentlyOpenedFiles(
|
---|
528 | string path,
|
---|
529 | int maxFiles)
|
---|
530 | {
|
---|
531 | if (myRecentFiles.Count < 1)
|
---|
532 | {
|
---|
533 | return;
|
---|
534 | }
|
---|
535 |
|
---|
536 | StreamWriter sw = File.CreateText(path);
|
---|
537 |
|
---|
538 | // Keep track of all files saved so we don't save duplicates.
|
---|
539 | ArrayList savedFiles = new ArrayList();
|
---|
540 | string fileName;
|
---|
541 |
|
---|
542 | // Start at the last (i.e. most recent file opened) and save
|
---|
543 | // until either 0 or maxFiles is reached.
|
---|
544 | for (int i = myRecentFiles.Count - 1; i >= 0; i--)
|
---|
545 | {
|
---|
546 | if (maxFiles == 0)
|
---|
547 | {
|
---|
548 | break;
|
---|
549 | }
|
---|
550 |
|
---|
551 | fileName = myRecentFiles[i].ToString();
|
---|
552 | if (File.Exists(fileName))
|
---|
553 | {
|
---|
554 | if (savedFiles.Contains(fileName) == false)
|
---|
555 | {
|
---|
556 | sw.WriteLine(fileName);
|
---|
557 | savedFiles.Add(fileName);
|
---|
558 | maxFiles--;
|
---|
559 | }
|
---|
560 | }
|
---|
561 | }
|
---|
562 | sw.Flush();
|
---|
563 | sw.Close();
|
---|
564 | }
|
---|
565 |
|
---|
566 | // ------------------------------------------------------------------
|
---|
567 | /// <summary>
|
---|
568 | /// Reads the list of recently opened filenames from the
|
---|
569 | /// path specified. If the path doesn't exist or if there aren't
|
---|
570 | /// any files to read, then 'null' is returned.
|
---|
571 | /// </summary>
|
---|
572 | /// <param name="path">string[]</param>
|
---|
573 | // ------------------------------------------------------------------
|
---|
574 | public virtual string[] ReadRecentlyOpenedFiles(string path)
|
---|
575 | {
|
---|
576 | if (File.Exists(path) == false)
|
---|
577 | {
|
---|
578 | return null;
|
---|
579 | }
|
---|
580 |
|
---|
581 | StreamReader sr = new StreamReader(path);
|
---|
582 |
|
---|
583 | string text = sr.ReadToEnd();
|
---|
584 | string[] filenames = text.Split("\n".ToCharArray());
|
---|
585 | this.myRecentFiles.Clear();
|
---|
586 | string trimmedFileName;
|
---|
587 | foreach (string filename in filenames)
|
---|
588 | {
|
---|
589 | trimmedFileName = filename.Trim("\r".ToCharArray());
|
---|
590 | if (File.Exists(trimmedFileName))
|
---|
591 | {
|
---|
592 | this.myRecentFiles.Add(trimmedFileName);
|
---|
593 | }
|
---|
594 | }
|
---|
595 |
|
---|
596 | if (this.myRecentFiles.Count > 0)
|
---|
597 | {
|
---|
598 | return (string[])myRecentFiles.ToArray(typeof(string));
|
---|
599 | }
|
---|
600 | else
|
---|
601 | {
|
---|
602 | return null;
|
---|
603 | }
|
---|
604 | }
|
---|
605 |
|
---|
606 | // ------------------------------------------------------------------
|
---|
607 | /// <summary>
|
---|
608 | /// Sets the layout root.
|
---|
609 | /// </summary>
|
---|
610 | /// <param name="shape">The shape.</param>
|
---|
611 | // ------------------------------------------------------------------
|
---|
612 | public virtual void SetLayoutRoot(IShape shape)
|
---|
613 | {
|
---|
614 | this.Controller.Model.LayoutRoot = shape;
|
---|
615 | }
|
---|
616 |
|
---|
617 | // ------------------------------------------------------------------
|
---|
618 | /// <summary>
|
---|
619 | /// Runs the activity.
|
---|
620 | /// </summary>
|
---|
621 | /// <param name="activityName">Name of the activity.</param>
|
---|
622 | // ------------------------------------------------------------------
|
---|
623 | public virtual void RunActivity(string activityName)
|
---|
624 | {
|
---|
625 | this.Controller.RunActivity(activityName);
|
---|
626 | }
|
---|
627 |
|
---|
628 | // ------------------------------------------------------------------
|
---|
629 | /// <summary>
|
---|
630 | /// Handles the OnEntityRemoved event of the Controller control.
|
---|
631 | /// </summary>
|
---|
632 | /// <param name="sender">The source of the event.</param>
|
---|
633 | /// <param name="e">The
|
---|
634 | /// <see cref="T:Netron.Diagramming.Core.EntityEventArgs"/> instance
|
---|
635 | /// containing the event data.</param>
|
---|
636 | // ------------------------------------------------------------------
|
---|
637 | protected virtual void HandleOnEntityRemoved(
|
---|
638 | object sender,
|
---|
639 | EntityEventArgs e)
|
---|
640 | {
|
---|
641 | RaiseOnEntityRemoved(e);
|
---|
642 | }
|
---|
643 |
|
---|
644 | // ------------------------------------------------------------------
|
---|
645 | /// <summary>
|
---|
646 | /// Handles the OnEntityAdded event of the Controller control.
|
---|
647 | /// </summary>
|
---|
648 | /// <param name="sender">The source of the event.</param>
|
---|
649 | /// <param name="e">The
|
---|
650 | /// <see cref="T:Netron.Diagramming.Core.EntityEventArgs"/> instance
|
---|
651 | /// containing the event data.</param>
|
---|
652 | // ------------------------------------------------------------------
|
---|
653 | protected virtual void HandleOnEntityAdded(
|
---|
654 | object sender,
|
---|
655 | EntityEventArgs e)
|
---|
656 | {
|
---|
657 | RaiseOnEntityAdded(e);
|
---|
658 | }
|
---|
659 |
|
---|
660 | // ------------------------------------------------------------------
|
---|
661 | /// <summary>
|
---|
662 | /// Handles the OnBackColorChange event of the View control.
|
---|
663 | /// </summary>
|
---|
664 | /// <param name="sender">The source of the event.</param>
|
---|
665 | /// <param name="e">The
|
---|
666 | /// <see cref="T:Netron.Diagramming.Core.ColorEventArgs"/> instance
|
---|
667 | /// containing the event data.</param>
|
---|
668 | // ------------------------------------------------------------------
|
---|
669 | protected void View_OnBackColorChange(object sender, ColorEventArgs e)
|
---|
670 | {
|
---|
671 | base.BackColor = e.Color;
|
---|
672 | }
|
---|
673 |
|
---|
674 | // ------------------------------------------------------------------
|
---|
675 | /// <summary>
|
---|
676 | /// Bubbles the OnHistoryChange event from the Controller to the surface
|
---|
677 | /// </summary>
|
---|
678 | /// <param name="sender">The source of the event.</param>
|
---|
679 | /// <param name="e">The
|
---|
680 | /// <see cref="T:Netron.Diagramming.Core.HistoryChangeEventArgs"/>
|
---|
681 | /// instance containing the event data.</param>
|
---|
682 | // ------------------------------------------------------------------
|
---|
683 | void mController_OnHistoryChange(
|
---|
684 | object sender,
|
---|
685 | HistoryChangeEventArgs e)
|
---|
686 | {
|
---|
687 | RaiseOnHistoryChange(e);
|
---|
688 | }
|
---|
689 |
|
---|
690 | void Controller_OnShowSelectionProperties(object sender, SelectionEventArgs e)
|
---|
691 | {
|
---|
692 | RaiseOnShowSelectionProperties(e);
|
---|
693 | }
|
---|
694 |
|
---|
695 | // ------------------------------------------------------------------
|
---|
696 | /// <summary>
|
---|
697 | /// Attaches to the controller specified and registers for all
|
---|
698 | /// required events to update this control from the controller.
|
---|
699 | /// </summary>
|
---|
700 | /// <param name="controller">IController</param>
|
---|
701 | // ------------------------------------------------------------------
|
---|
702 | protected virtual void AttachToController(IController controller)
|
---|
703 | {
|
---|
704 |
|
---|
705 | if (controller == null)
|
---|
706 | throw new ArgumentNullException();
|
---|
707 | mController = controller;
|
---|
708 | mController.OnHistoryChange +=
|
---|
709 | new EventHandler<HistoryChangeEventArgs>(
|
---|
710 | mController_OnHistoryChange);
|
---|
711 |
|
---|
712 | mController.OnShowSelectionProperties +=
|
---|
713 | new EventHandler<SelectionEventArgs>(
|
---|
714 | Controller_OnShowSelectionProperties);
|
---|
715 |
|
---|
716 | mController.OnEntityAdded +=
|
---|
717 | new EventHandler<EntityEventArgs>(
|
---|
718 | HandleOnEntityAdded);
|
---|
719 |
|
---|
720 | mController.OnEntityRemoved +=
|
---|
721 | new EventHandler<EntityEventArgs>(
|
---|
722 | HandleOnEntityRemoved);
|
---|
723 | }
|
---|
724 |
|
---|
725 | // ------------------------------------------------------------------
|
---|
726 | /// <summary>
|
---|
727 | /// Resets the document and underlying model.
|
---|
728 | /// </summary>
|
---|
729 | // ------------------------------------------------------------------
|
---|
730 | public virtual void NewDocument()
|
---|
731 | {
|
---|
732 | // Lets see, we really only want to ask the user if they want to
|
---|
733 | // save their changes if they don't have changes to save.
|
---|
734 | // We can check the un/redo mananger to see if there are changes.
|
---|
735 | if ((this.mController.UndoManager.CanRedo()) ||
|
---|
736 | (this.mController.UndoManager.CanUndo()))
|
---|
737 | {
|
---|
738 | DialogResult result = MessageBox.Show(
|
---|
739 | "Save changes before clearing the current diagram?",
|
---|
740 | "Confirm Clear",
|
---|
741 | MessageBoxButtons.YesNoCancel,
|
---|
742 | MessageBoxIcon.Question);
|
---|
743 |
|
---|
744 | if (result == DialogResult.Yes)
|
---|
745 | {
|
---|
746 | this.Save();
|
---|
747 | }
|
---|
748 | else if (result == DialogResult.Cancel)
|
---|
749 | {
|
---|
750 | return;
|
---|
751 | }
|
---|
752 | }
|
---|
753 | Document = new Document();
|
---|
754 | this.mController.UndoManager.ClearUndoRedo();
|
---|
755 | AttachToDocument(Document);
|
---|
756 | this.mFileName = "";
|
---|
757 | RaiseOnNewDiagram();
|
---|
758 | //this.Controller.Model.Clear();
|
---|
759 | }
|
---|
760 |
|
---|
761 | #region Printing
|
---|
762 |
|
---|
763 | // ------------------------------------------------------------------
|
---|
764 | /// <summary>
|
---|
765 | /// Displays a PageSetupDialog so the user can specify how each
|
---|
766 | /// page is printed.
|
---|
767 | /// </summary>
|
---|
768 | // ------------------------------------------------------------------
|
---|
769 | public void PageSetup()
|
---|
770 | {
|
---|
771 | PageSetupDialog dialog = new PageSetupDialog();
|
---|
772 | dialog.PageSettings = this.PageSettings;
|
---|
773 | if (dialog.ShowDialog() == DialogResult.OK)
|
---|
774 | {
|
---|
775 | this.PageSettings = dialog.PageSettings;
|
---|
776 | }
|
---|
777 | }
|
---|
778 |
|
---|
779 | // ------------------------------------------------------------------
|
---|
780 | /// <summary>
|
---|
781 | /// Prints all pages of the diagram.
|
---|
782 | /// </summary>
|
---|
783 | // ------------------------------------------------------------------
|
---|
784 | public void Print()
|
---|
785 | {
|
---|
786 | DiagramPrinter myPrinter = new DiagramPrinter(
|
---|
787 | this.PageSettings,
|
---|
788 | this,
|
---|
789 | false);
|
---|
790 | }
|
---|
791 |
|
---|
792 | // ------------------------------------------------------------------
|
---|
793 | /// <summary>
|
---|
794 | /// Print previews all pages of the diagram.
|
---|
795 | /// </summary>
|
---|
796 | // ------------------------------------------------------------------
|
---|
797 | public void PrintPreview()
|
---|
798 | {
|
---|
799 | DiagramPrinter myPrinter = new DiagramPrinter(
|
---|
800 | this.PageSettings,
|
---|
801 | this,
|
---|
802 | true);
|
---|
803 | }
|
---|
804 |
|
---|
805 | #endregion
|
---|
806 |
|
---|
807 | #region IO
|
---|
808 | // ------------------------------------------------------------------
|
---|
809 | /// <summary>
|
---|
810 | /// If the current filename (FileName property) is empty, then a
|
---|
811 | /// SaveFileDialog is displayed for the user to specify what to save
|
---|
812 | /// the diagram as. Otherwise, the current filename is used to save
|
---|
813 | /// the diagram.
|
---|
814 | /// </summary>
|
---|
815 | // ------------------------------------------------------------------
|
---|
816 | public virtual void Save()
|
---|
817 | {
|
---|
818 | try
|
---|
819 | {
|
---|
820 | if (this.mFileName == "")
|
---|
821 | {
|
---|
822 | SaveFileDialog dialog = new SaveFileDialog();
|
---|
823 | if (dialog.ShowDialog() == DialogResult.OK)
|
---|
824 | {
|
---|
825 | this.SaveAs(dialog.FileName);
|
---|
826 | }
|
---|
827 | }
|
---|
828 | else
|
---|
829 | {
|
---|
830 | this.SaveAs(this.mFileName);
|
---|
831 | }
|
---|
832 | }
|
---|
833 | catch (Exception ex)
|
---|
834 | {
|
---|
835 | MessageBox.Show("An error occured while saving the " +
|
---|
836 | "diagram. See below for the message about the " +
|
---|
837 | "error.\n\n" +
|
---|
838 | "Message: " + ex.Message,
|
---|
839 | "Save Diagram Error",
|
---|
840 | MessageBoxButtons.OK,
|
---|
841 | MessageBoxIcon.Error);
|
---|
842 | }
|
---|
843 | }
|
---|
844 |
|
---|
845 | // ------------------------------------------------------------------
|
---|
846 | /// <summary>
|
---|
847 | /// Displays a SaveFileDialog regardless if there's an existing
|
---|
848 | /// filename so the user can save the diagram to a new location.
|
---|
849 | /// </summary>
|
---|
850 | // ------------------------------------------------------------------
|
---|
851 | public virtual void SaveAs()
|
---|
852 | {
|
---|
853 | SaveFileDialog dialog = new SaveFileDialog();
|
---|
854 |
|
---|
855 | if (dialog.ShowDialog() == DialogResult.OK)
|
---|
856 | {
|
---|
857 | SaveAs(dialog.FileName);
|
---|
858 | }
|
---|
859 | }
|
---|
860 |
|
---|
861 | // ------------------------------------------------------------------
|
---|
862 | /// <summary>
|
---|
863 | /// Saves the diagram to the given location.
|
---|
864 | /// </summary>
|
---|
865 | /// <param name="path">The path.</param>
|
---|
866 | // ------------------------------------------------------------------
|
---|
867 | public virtual void SaveAs(string path)
|
---|
868 | {
|
---|
869 | if (!Directory.Exists(Path.GetDirectoryName(path)))
|
---|
870 | {
|
---|
871 | throw new DirectoryNotFoundException(
|
---|
872 | "Create the directory before saving the diagram to it.");
|
---|
873 | }
|
---|
874 | RaiseOnSavingDiagram(path);
|
---|
875 | if (BinarySerializer.SaveAs(path, this) == true)
|
---|
876 | {
|
---|
877 | // Store the filename if the save was successful.
|
---|
878 | this.mFileName = path;
|
---|
879 |
|
---|
880 | // Clear the undo/redo history.
|
---|
881 | this.mController.UndoManager.ClearUndoRedo();
|
---|
882 | RaiseOnDiagramSaved(path);
|
---|
883 | }
|
---|
884 | }
|
---|
885 |
|
---|
886 | // ------------------------------------------------------------------
|
---|
887 | /// <summary>
|
---|
888 | /// Displays an OpenFileDialog for the user to specify the diagram
|
---|
889 | /// to open.
|
---|
890 | /// </summary>
|
---|
891 | // ------------------------------------------------------------------
|
---|
892 | public virtual void Open()
|
---|
893 | {
|
---|
894 | OpenFileDialog dialog = new OpenFileDialog();
|
---|
895 | if (dialog.ShowDialog() == DialogResult.OK)
|
---|
896 | {
|
---|
897 | this.Open(dialog.FileName);
|
---|
898 | }
|
---|
899 | }
|
---|
900 |
|
---|
901 | // ------------------------------------------------------------------
|
---|
902 | /// <summary>
|
---|
903 | /// Opens the diagram from the specified path.
|
---|
904 | /// </summary>
|
---|
905 | /// <param name="path">The path.</param>
|
---|
906 | // ------------------------------------------------------------------
|
---|
907 | public virtual void Open(string path)
|
---|
908 | {
|
---|
909 | if (!Directory.Exists(Path.GetDirectoryName(path)))
|
---|
910 | {
|
---|
911 | throw new DirectoryNotFoundException(
|
---|
912 | "Create the directory before saving the diagram to it.");
|
---|
913 | }
|
---|
914 | this.NewDocument();//makes it possible for the host to ask for
|
---|
915 | // saving first.
|
---|
916 |
|
---|
917 | RaiseOnOpeningDiagram(path);//do it before opening the new diagram.
|
---|
918 | if (BinarySerializer.Open(path, this) == true)
|
---|
919 | {
|
---|
920 | // Store the filename if successful.
|
---|
921 | this.mFileName = path;
|
---|
922 |
|
---|
923 | // Add the filename to the list of previously opened files.
|
---|
924 | this.myRecentFiles.Add(path);
|
---|
925 |
|
---|
926 | // Raise that a new diagram was opened.
|
---|
927 | RaiseOnDiagramOpened(path);
|
---|
928 | }
|
---|
929 | //this.mFileName = mFileName;
|
---|
930 | }
|
---|
931 | #endregion
|
---|
932 |
|
---|
933 | // ------------------------------------------------------------------
|
---|
934 | /// <summary>
|
---|
935 | /// Attachement to the document.
|
---|
936 | /// </summary>
|
---|
937 | /// <param name="document">The document.</param>
|
---|
938 | // ------------------------------------------------------------------
|
---|
939 | public virtual void AttachToDocument(Document document)
|
---|
940 | {
|
---|
941 |
|
---|
942 | if(document == null)
|
---|
943 | throw new ArgumentNullException();
|
---|
944 |
|
---|
945 | this.mDocument = document;
|
---|
946 |
|
---|
947 | #region re-attach to the new model
|
---|
948 | View.Model = Document.Model;
|
---|
949 | Controller.Model = Document.Model;
|
---|
950 | Selection.Controller = Controller;
|
---|
951 | #endregion
|
---|
952 | #region Update the ambience
|
---|
953 | document.Model.SetCurrentPage(0);
|
---|
954 | #endregion
|
---|
955 |
|
---|
956 | Selection.Clear();
|
---|
957 | this.Invalidate();
|
---|
958 | }
|
---|
959 |
|
---|
960 | // ------------------------------------------------------------------
|
---|
961 | /// <summary>
|
---|
962 | /// Activates a registered tool with the given name
|
---|
963 | /// </summary>
|
---|
964 | /// <param name="toolName">the name of a tool</param>
|
---|
965 | // ------------------------------------------------------------------
|
---|
966 | [System.Diagnostics.CodeAnalysis.SuppressMessage(
|
---|
967 | "Microsoft.Design", "CA1062:ValidateArgumentsOfPublicMethods")]
|
---|
968 | public void ActivateTool(string toolName)
|
---|
969 | {
|
---|
970 | if (toolName == null || toolName.Trim().Length == 0)
|
---|
971 | {
|
---|
972 | throw new ArgumentNullException("The tool name cannot " +
|
---|
973 | "be 'null' or empty.");
|
---|
974 | }
|
---|
975 |
|
---|
976 | if (this.Controller == null)
|
---|
977 | {
|
---|
978 | throw new InconsistencyException(
|
---|
979 | "The Controller of the surface is 'null', this is a " +
|
---|
980 | "strong inconsistency in the MVC model.");
|
---|
981 | }
|
---|
982 | if(toolName.Trim().Length>0)
|
---|
983 | this.Controller.ActivateTool(toolName);
|
---|
984 | }
|
---|
985 |
|
---|
986 | // ------------------------------------------------------------------
|
---|
987 | /// <summary>
|
---|
988 | /// Starts the tool with the given name.
|
---|
989 | /// </summary>
|
---|
990 | /// <param name="toolName">the name of a registered tool</param>
|
---|
991 | // ------------------------------------------------------------------
|
---|
992 | public void LaunchTool(string toolName)
|
---|
993 | {
|
---|
994 | if (this.Controller == null) return;
|
---|
995 | this.Controller.ActivateTool(toolName);
|
---|
996 | }
|
---|
997 |
|
---|
998 | // ------------------------------------------------------------------
|
---|
999 | /// <summary>
|
---|
1000 | /// Overrides the base method to call the view which will paint the
|
---|
1001 | /// diagram on the given graphics surface.
|
---|
1002 | /// </summary>
|
---|
1003 | /// <param name="e">PaintEventArgs</param>
|
---|
1004 | // ------------------------------------------------------------------
|
---|
1005 | protected override void OnPaint(PaintEventArgs e)
|
---|
1006 | {
|
---|
1007 | base.OnPaint(e);
|
---|
1008 | mView.Paint(e.Graphics);
|
---|
1009 | }
|
---|
1010 |
|
---|
1011 | // ------------------------------------------------------------------
|
---|
1012 | /// <summary>
|
---|
1013 | /// Paints the background of the control.
|
---|
1014 | /// </summary>
|
---|
1015 | /// <param name="pevent">A
|
---|
1016 | /// <see cref="T:System.Windows.Forms.PaintEventArgs"></see> that
|
---|
1017 | /// contains information about the control to paint.</param>
|
---|
1018 | // ------------------------------------------------------------------
|
---|
1019 | protected override void OnPaintBackground(PaintEventArgs pevent)
|
---|
1020 | {
|
---|
1021 | base.OnPaintBackground(pevent);
|
---|
1022 |
|
---|
1023 | mView.PaintBackground(pevent.Graphics);
|
---|
1024 | }
|
---|
1025 |
|
---|
1026 | // ------------------------------------------------------------------
|
---|
1027 | /// <summary>
|
---|
1028 | /// Undoes the last action that was recorded in the UndoManager.
|
---|
1029 | /// </summary>
|
---|
1030 | // ------------------------------------------------------------------
|
---|
1031 | public void Undo()
|
---|
1032 | {
|
---|
1033 | this.Controller.Undo();
|
---|
1034 | }
|
---|
1035 |
|
---|
1036 | // ------------------------------------------------------------------
|
---|
1037 | /// <summary>
|
---|
1038 | /// Redoes the last action that was recorded in the UndoManager.
|
---|
1039 | /// </summary>
|
---|
1040 | // ------------------------------------------------------------------
|
---|
1041 | public void Redo()
|
---|
1042 | {
|
---|
1043 | this.Controller.Redo();
|
---|
1044 | }
|
---|
1045 | #endregion
|
---|
1046 |
|
---|
1047 | #region Explicit ISupportInitialize implementation
|
---|
1048 | void ISupportInitialize.BeginInit()
|
---|
1049 | {
|
---|
1050 | //here you can check the conformity of properties
|
---|
1051 | BeginInit();
|
---|
1052 | }
|
---|
1053 |
|
---|
1054 | /// <summary>
|
---|
1055 | /// Signals the object that initialization is complete.
|
---|
1056 | /// </summary>
|
---|
1057 | void ISupportInitialize.EndInit()
|
---|
1058 | {
|
---|
1059 | EndInit();
|
---|
1060 | }
|
---|
1061 |
|
---|
1062 | /// <summary>
|
---|
1063 | /// Signals the object that initialization is starting.
|
---|
1064 | /// </summary>
|
---|
1065 | protected virtual void BeginInit()
|
---|
1066 | {
|
---|
1067 |
|
---|
1068 | }
|
---|
1069 | /// <summary>
|
---|
1070 | /// Signals the object that initialization is complete.
|
---|
1071 | /// </summary>
|
---|
1072 | protected virtual void EndInit()
|
---|
1073 | {
|
---|
1074 | //necessary if the background type is gradient since the brush requires the size of the client rectangle
|
---|
1075 | mView.SetBackgroundType(BackgroundType);
|
---|
1076 |
|
---|
1077 | //the diagram control provider gives problems in design mode. If enable at design mode the
|
---|
1078 | //diagramming control becomes a container component rather than a form control because the essential
|
---|
1079 | //properties are disabled through the ControlProvider (the Location or ID for example).
|
---|
1080 | //Also, do not try to put this in the constructor, you need the ISupportInitialize to get a meaningful DesignMode value.
|
---|
1081 | if(!DesignMode)
|
---|
1082 | {
|
---|
1083 | ControlProvider controlProvider = new ControlProvider();
|
---|
1084 | TypeDescriptor.AddProvider(controlProvider, typeof(DiagramControlBase));
|
---|
1085 | }
|
---|
1086 | }
|
---|
1087 | #endregion
|
---|
1088 | }
|
---|
1089 | }
|
---|