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annotate Chronosv2/source/Presentation/Windows/Controls/DesktopElement.cs @ 10:443821e55f06

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Initial cleaned up add from Codeplex files
author stevenh7776 stevenhollidge@hotmail.com
date Tue, 21 Feb 2012 17:25:44 +0700
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1 /*
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2 The MIT License
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3
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4 Copyright (c) 2009-2010. Carlos Guzmán Álvarez. http://chronoswpf.codeplex.com/
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5
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6 Permission is hereby granted, free of charge, to any person obtaining a copy
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7 of this software and associated documentation files (the "Software"), to deal
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8 in the Software without restriction, including without limitation the rights
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9 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 copies of the Software, and to permit persons to whom the Software is
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11 furnished to do so, subject to the following conditions:
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12
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13 The above copyright notice and this permission notice shall be included in
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14 all copies or substantial portions of the Software.
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15
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16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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19 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 THE SOFTWARE.
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23 */
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24
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25 using System;
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26 using System.Windows;
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27 using System.Windows.Controls;
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28 using System.Windows.Input;
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29 using Chronos.Extensions.Windows;
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30 using Chronos.Presentation.Core.Windows;
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31
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32 namespace Chronos.Presentation.Windows.Controls
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33 {
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34 /// <summary>
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35 /// Base class for <see cref="Desktop"/> elements (shortcuts, widgets,...)
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36 /// </summary>
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37 [TemplatePart(Name = DesktopElement.PART_Dragger, Type = typeof(FrameworkElement))]
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38 public abstract class DesktopElement
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39 : ContentControl, IDesktopElement, IActiveAware
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40 {
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41 #region · Constants ·
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42
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43 protected const string PART_Dragger = "PART_Dragger";
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44 protected const int ResizeSideThichness = 5;
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45 protected const int ResizeCornerSize = 5;
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46
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47 #endregion
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48
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49 #region · Dependency Properties ·
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50
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51 /// <summary>
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52 /// Identifies the Id dependency property.
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53 /// </summary>
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54 public static readonly DependencyProperty IdProperty =
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55 DependencyProperty.Register("Id", typeof(Guid), typeof(DesktopElement),
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56 new FrameworkPropertyMetadata(Guid.NewGuid()));
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57
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58 /// <summary>
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59 /// Identifies the WindowStartupLocation dependency property.
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60 /// </summary>
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61 public static readonly DependencyProperty StartupLocationProperty =
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62 DependencyProperty.Register("StartupLocation", typeof(StartupPosition), typeof(WindowElement),
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63 new FrameworkPropertyMetadata(StartupPosition.CenterParent, FrameworkPropertyMetadataOptions.AffectsArrange));
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64
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65 /// <summary>
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66 /// Identifies the CanResize dependency property.
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67 /// </summary>
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68 public static readonly DependencyProperty CanResizeProperty =
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69 DependencyProperty.Register("CanResize", typeof(bool), typeof(DesktopElement),
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70 new FrameworkPropertyMetadata(true));
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71
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72 /// <summary>
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73 /// Identifies the CanDrag dependency property.
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74 /// </summary>
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75 public static readonly DependencyProperty CanDragProperty =
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76 DependencyProperty.Register("CanDrag", typeof(bool), typeof(DesktopElement),
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77 new FrameworkPropertyMetadata(true));
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78
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79 /// <summary>
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80 /// Identifies the CanClose dependency property.
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81 /// </summary>
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82 public static readonly DependencyProperty CanCloseProperty =
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83 DependencyProperty.Register("CanClose", typeof(bool), typeof(DesktopElement),
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84 new FrameworkPropertyMetadata(true));
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85
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86 /// <summary>
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87 /// Identifies the ConstraintToParent dependency property.
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88 /// </summary>
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89 public static readonly DependencyProperty ConstraintToParentProperty =
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90 DependencyProperty.Register("ConstraintToParent", typeof(bool), typeof(DesktopElement),
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91 new FrameworkPropertyMetadata(false));
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92
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93 /// <summary>
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94 /// Identifies the IsActive dependency property
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95 /// </summary>
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96 public static readonly DependencyProperty IsActiveProperty =
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97 DependencyProperty.Register("IsActive",
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98 typeof(bool),
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99 typeof(DesktopElement),
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100 new FrameworkPropertyMetadata(false));
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101
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102 #endregion
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103
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104 #region · Static Constructors ·
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105
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106 /// <summary>
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107 /// Initializes the <see cref="DesktopElement"/> class.
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108 /// </summary>
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109 static DesktopElement()
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110 {
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111 // set the key to reference the style for this control
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112 FrameworkElement.DefaultStyleKeyProperty.OverrideMetadata(
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113 typeof(DesktopElement), new FrameworkPropertyMetadata(typeof(DesktopElement)));
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114 }
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115
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116 #endregion
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117
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118 #region · Static Routed Events ·
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119
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120 /// <summary>
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121 /// Occurs when a desktop element is activated
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122 /// </summary>
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123 public static readonly RoutedEvent ActivatedEvent = EventManager.
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124 RegisterRoutedEvent("Activated", RoutingStrategy.Bubble,
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125 typeof(RoutedEventHandler), typeof(DesktopElement));
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126
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127 /// <summary>
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128 /// Occurs when a desktop element is deactivated
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129 /// </summary>
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130 public static readonly RoutedEvent DeactivatedEvent = EventManager.
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131 RegisterRoutedEvent("Deactivated", RoutingStrategy.Bubble,
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132 typeof(RoutedEventHandler), typeof(DesktopElement));
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133
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134 #endregion
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135
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136 #region · Events ·
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137
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138 /// <summary>
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139 /// Occurs when the element becomes activated
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140 /// </summary>
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141 public event RoutedEventHandler Activated
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142 {
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143 add { base.AddHandler(DesktopElement.ActivatedEvent, value); }
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144 remove { base.RemoveHandler(DesktopElement.ActivatedEvent, value); }
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145 }
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146
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147 /// <summary>
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148 /// Occurs when the element becomes deactivated
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149 /// </summary>
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150 public event RoutedEventHandler Deactivated
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151 {
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152 add { base.AddHandler(DesktopElement.DeactivatedEvent, value); }
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153 remove { base.RemoveHandler(DesktopElement.DeactivatedEvent, value); }
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154 }
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155
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156 #endregion
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157
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158 #region · Fields ·
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159
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160 private Panel parent;
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161 private FrameworkElement partDragger;
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162 private DragOrResizeStatus previewDragOrResizeStatus;
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163 private DragOrResizeStatus dragOrResizeStatus;
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164 private Point startMousePosition;
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165 private Point previousMousePosition;
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166 private Point oldPosition;
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167 private Size originalSize;
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168 private Size previousSize;
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169 private bool isInitialized;
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170 private bool oldCanResize;
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171
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172 #endregion
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173
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174 #region · Properties ·
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175
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176 /// <summary>
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177 /// Gets or sets the element id.
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178 /// </summary>
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179 /// <value>The id.</value>
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180 public Guid Id
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181 {
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182 get { return (Guid)base.GetValue(IdProperty); }
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183 set { base.SetValue(IdProperty, value); }
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184 }
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185
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186 /// <summary>
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187 /// Gets the window parent control
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188 /// </summary>
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189 public new Panel Parent
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190 {
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191 get { return this.parent; }
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192 set { this.parent = value; }
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193 }
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194
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195 /// <summary>
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196 /// Gets or sets the position of the window when first shown.
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197 /// </summary>
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198 public StartupPosition StartupLocation
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199 {
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200 get { return (StartupPosition)base.GetValue(StartupLocationProperty); }
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201 set { base.SetValue(StartupLocationProperty, value); }
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202 }
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203
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204 /// <summary>
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205 /// Gets or sets a value indicating whether the element can be resized
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206 /// </summary>
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207 public bool CanResize
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208 {
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209 get { return (bool)base.GetValue(CanResizeProperty); }
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210 set { base.SetValue(CanResizeProperty, value); }
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211 }
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212
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213 /// <summary>
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214 /// Gets a value indicating whether the element can be dragged.
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215 /// </summary>
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216 /// <value><c>true</c> if this instance can drag; otherwise, <c>false</c>.</value>
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217 public virtual bool CanDrag
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218 {
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219 get { return (bool)base.GetValue(CanDragProperty); }
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220 set { base.SetValue(CanDragProperty, value); }
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221 }
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222
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223 /// <summary>
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224 /// Gets a value indicating whether the element can be closed.
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225 /// </summary>
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226 /// <value><c>true</c> if this instance can be closed; otherwise, <c>false</c>.</value>
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227 public virtual bool CanClose
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228 {
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229 get { return (bool)base.GetValue(CanCloseProperty); }
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230 set { base.SetValue(CanCloseProperty, value); }
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231 }
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232
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233 /// <summary>
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234 /// Gets a value indicating whether the element should be constrained to parent.
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235 /// </summary>
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236 /// <value><c>true</c> if this instance can drag; otherwise, <c>false</c>.</value>
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237 public virtual bool ConstraintToParent
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238 {
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239 get { return (bool)base.GetValue(ConstraintToParentProperty); }
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240 set { base.SetValue(ConstraintToParentProperty, value); }
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241 }
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242
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243 /// <summary>
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244 /// Gets or sets a value indicating whether the element is active.
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245 /// </summary>
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246 /// <value>
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247 /// <c>true</c> if this instance is active; otherwise, <c>false</c>.
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248 /// </value>
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249 public virtual bool IsActive
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250 {
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251 get { return (bool)base.GetValue(IsActiveProperty); }
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252 }
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253
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254 #endregion
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255
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256 #region · Protected Properties ·
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257
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258 /// <summary>
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259 /// Gets the current drag or resize status
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260 /// </summary>
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261 protected DragOrResizeStatus DragOrResizeStatus
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262 {
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263 get { return this.dragOrResizeStatus; }
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264 }
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265
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266 /// <summary>
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267 /// Gets or sets the old element position.
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268 /// </summary>
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269 protected Point OldPosition
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270 {
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271 get { return this.oldPosition; }
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272 set { this.oldPosition = value; }
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273 }
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274
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275 /// <summary>
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276 /// Gets or sets the original element size
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277 /// </summary>
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278 protected Size OriginalSize
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279 {
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280 get { return this.originalSize; }
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281 set { this.originalSize = value; }
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282 }
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283
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284 /// <summary>
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285 /// Gets the parent <see cref="Desktop"/>.
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286 /// </summary>
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287 /// <value>The parent desktop.</value>
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288 protected Desktop ParentDesktop
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289 {
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290 //get { return this.GetParent<Desktop>(); }
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291 get { return this.parent as Desktop; }
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292 }
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293
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294 protected FrameworkElement PartDragger
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295 {
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296 get { return this.partDragger; }
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297 set { this.partDragger = value; }
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298 }
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299
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300 #endregion
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301
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302 #region · Constructors ·
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303
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304 /// <summary>
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305 /// Initializes a new instance of the <see cref="DesktopElement"/> class.
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306 /// </summary>
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307 protected DesktopElement()
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308 {
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309 this.previewDragOrResizeStatus = DragOrResizeStatus.None;
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310 this.dragOrResizeStatus = DragOrResizeStatus.None;
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311 this.startMousePosition = new Point();
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312 this.oldCanResize = this.CanResize;
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313 }
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314
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315 #endregion
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316
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317 #region · Methods ·
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318
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319 public override void OnApplyTemplate()
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320 {
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321 base.OnApplyTemplate();
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322
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323 this.PartDragger = this.GetTemplateChild(DesktopElement.PART_Dragger) as FrameworkElement;
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324 }
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325
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326 /// <summary>
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327 /// Attempts to bring the element to the foreground and activates it.
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328 /// </summary>
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329 public void Activate()
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330 {
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331 this.OnActivated();
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332 }
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333
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334 /// <summary>
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335 /// Deactivates the element
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336 /// </summary>
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337 public void Deactivate()
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338 {
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339 this.OnDeactivated();
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340 }
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341
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342 /// <summary>
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343 /// Closes the desktop element
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344 /// </summary>
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345 public virtual void Close()
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346 {
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347 if (this.Parent != null)
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348 {
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349 this.Parent.Children.Remove(this);
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350 }
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351
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352 // Clean up
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353 this.Id = Guid.Empty;
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354 this.previewDragOrResizeStatus = DragOrResizeStatus.None;
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355 this.dragOrResizeStatus = DragOrResizeStatus.None;
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356 this.startMousePosition = new Point();
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357 this.previousMousePosition = new Point();
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358 this.oldPosition = new Point();
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359 this.previousSize = Size.Empty;
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360 this.originalSize = Size.Empty;
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361 this.isInitialized = false;
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362 this.oldCanResize = false;
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363 this.partDragger = null;
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364 this.parent = null;
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365 this.Content = null;
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366 this.DataContext = null;
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367 }
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368
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369 #endregion
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370
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371 #region · Protected Methods ·
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372
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373 /// <summary>
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374 /// Raises the <see cref="E:System.Windows.FrameworkElement.SizeChanged"/> event, using the specified information as part of the eventual event data.
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375 /// </summary>
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376 /// <param name="sizeInfo">Details of the old and new size involved in the change.</param>
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377 protected override void OnRenderSizeChanged(SizeChangedInfo sizeInfo)
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378 {
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379 base.OnRenderSizeChanged(sizeInfo);
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380
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381 if (!this.isInitialized)
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382 {
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383 this.RefreshCalculatedVisualProperties();
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384
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385 this.OriginalSize = new Size(this.ActualWidth, this.ActualHeight);
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386 this.isInitialized = true;
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387 }
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388 }
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389
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390 protected void RefreshCalculatedVisualProperties()
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391 {
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392 if (!DesignMode.IsInDesignMode)
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393 {
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394 switch (this.StartupLocation)
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395 {
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396 case StartupPosition.CenterParent:
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397 if (!this.ConstraintToParent &&
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398 this.GetParent<Window>() != null)
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399 {
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400 this.MoveElement
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401 (
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402 (this.GetParent<Window>().ActualWidth - this.ActualWidth) / 2,
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403 (this.GetParent<Window>().ActualHeight - this.ActualHeight) / 2 - (this.GetParent<Window>().ActualHeight - this.Parent.ActualHeight)
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404 );
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405 }
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406 else if (this.Parent != null)
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407 {
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408 this.MoveElement
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409 (
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410 (this.Parent.ActualWidth - this.ActualWidth) / 2,
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411 (this.Parent.ActualHeight - this.ActualHeight) / 2
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412 );
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413 }
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414 break;
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415
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416 case StartupPosition.Manual:
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417 break;
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418
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419 case StartupPosition.WindowsDefaultLocation:
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420 this.MoveElement(5, 5);
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421 break;
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422 }
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423 }
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424 }
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425
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426 /// <summary>
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427 /// Raises the <see cref="DesktopElement.Activated"/> event.
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428 /// </summary>
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429 protected virtual void OnActivated()
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430 {
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431 if (!(bool)this.GetValue(DesktopElement.IsActiveProperty))
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432 {
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433 if (this.ParentDesktop != null)
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434 {
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435 this.ParentDesktop.OnActivatedElement(this.Id);
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436 this.ParentDesktop.BringToFront(this);
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437 }
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438
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439 this.GiveFocus();
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440
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441 base.SetValue(DesktopElement.IsActiveProperty, true);
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442
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443 RoutedEventArgs e = new RoutedEventArgs(DesktopElement.ActivatedEvent, this);
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444 base.RaiseEvent(e);
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445 }
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446 }
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447
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448 /// <summary>
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449 /// Raises the <see cref="DesktopElement.Deactivated"/> event.
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450 /// </summary>
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451 protected virtual void OnDeactivated()
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452 {
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453 if (this.IsActive)
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454 {
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455 base.SetValue(DesktopElement.IsActiveProperty, false);
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456
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457 RoutedEventArgs e = new RoutedEventArgs(DesktopElement.DeactivatedEvent, this);
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458 base.RaiseEvent(e);
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459 }
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460 }
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461
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462 /// <summary>
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463 /// Focuses the element
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464 /// </summary>
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465 protected virtual void GiveFocus()
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466 {
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467 this.SetFocus();
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468 }
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469
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470 #endregion
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471
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472 #region · Protected Element Move/Resize Methods ·
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473
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474 protected virtual void MoveElement(double x, double y)
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475 {
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476 this.Move(x, y);
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477 }
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478
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479 protected virtual void MoveElementLeft(double value)
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480 {
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481 this.MoveLeft(value);
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482 }
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483
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484 protected virtual void MoveElementTop(double value)
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485 {
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486 this.MoveTop(value);
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487 }
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488
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489 protected virtual void AdjustBounds(Point mousePosition)
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490 {
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491 Point position = this.GetPosition();
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492
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493 if (this.Parent != null)
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494 {
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495 Vector changeFromStart = Point.Subtract(mousePosition, this.startMousePosition);
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496
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497 if (this.dragOrResizeStatus == DragOrResizeStatus.Drag)
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498 {
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499 if (this.CanDrag)
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500 {
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501 double x = position.X + changeFromStart.X;
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502 double y = position.Y + changeFromStart.Y;
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503
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504 if (this.ConstraintToParent)
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505 {
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506 if (x < 0)
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507 {
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508 x = 0;
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509 }
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510 if (y < 0)
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511 {
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512 y = 0;
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513 }
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514 if (y + this.ActualHeight > this.ParentDesktop.ActualHeight)
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515 {
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516 y = this.ParentDesktop.ActualHeight - this.ActualHeight;
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517 }
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518 if (x + this.ActualWidth > this.ParentDesktop.ActualWidth)
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519 {
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520 x = this.ParentDesktop.ActualWidth - this.ActualWidth;
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521 }
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522 }
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523
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524 if (x != position.X || y != position.Y)
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525 {
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526 this.MoveElement(x, y);
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527 }
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528 }
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529 }
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530 else
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531 {
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532 Size size = this.RenderSize;
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533 Vector changeFromPrevious = Point.Subtract(mousePosition, this.previousMousePosition);
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534
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535 if (this.dragOrResizeStatus.IsOnRight)
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536 {
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537 if (size.Width + changeFromPrevious.X > this.MinWidth)
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538 {
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539 size.Width += changeFromPrevious.X;
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540 }
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541 }
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542 else if (this.dragOrResizeStatus.IsOnLeft)
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543 {
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544 if (size.Width - changeFromStart.X > this.MinWidth)
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545 {
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546 this.MoveElementLeft(position.X + changeFromStart.X);
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547 size.Width -= changeFromStart.X;
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548 }
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549 }
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550
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551 if (this.dragOrResizeStatus.IsOnBottom)
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552 {
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553 if (size.Height + changeFromPrevious.Y > this.MinHeight)
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554 {
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555 size.Height += changeFromPrevious.Y;
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556 }
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557 }
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558 else if (this.dragOrResizeStatus.IsOnTop)
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559 {
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560 if (size.Height - changeFromStart.Y > this.MinHeight)
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561 {
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562 this.MoveElementTop(position.Y + changeFromStart.Y);
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563 size.Height -= changeFromStart.Y;
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564 }
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565 }
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566
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567 this.Width = size.Width;
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568 this.Height = size.Height;
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569 }
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570 }
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571 }
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572
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573 #endregion
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574
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575 #region · Mouse Handling Methods ·
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576
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577 /// <summary>
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578 /// Invoked when an unhandled <see cref="E:System.Windows.Input.Mouse.PreviewMouseDown"/> attached routed event
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diff changeset
579 /// reaches an element in its route that is derived from this class.
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diff changeset
580 /// Implement this method to add class handling for this event.
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581 /// </summary>
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582 /// <param name="e">
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583 /// The <see cref="T:System.Windows.Input.MouseButtonEventArgs"/> that contains the event data.
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584 /// The event data reports that one or more mouse buttons were pressed.
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585 /// </param>
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586 protected override void OnPreviewMouseDown(MouseButtonEventArgs e)
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587 {
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588 if (!this.IsActive)
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589 {
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590 this.OnActivated();
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591 }
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592
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593 base.OnPreviewMouseDown(e);
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594 }
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595
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596 /// <summary>
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diff changeset
597 /// Invoked when an unhandled <see cref="E:System.Windows.UIElement.PreviewMouseLeftButtonDown"/> routed event
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598 /// reaches an element in its route that is derived from this class.
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parents:
diff changeset
599 /// Implement this method to add class handling for this event.
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diff changeset
600 /// </summary>
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diff changeset
601 /// <param name="e">
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602 /// The <see cref="T:System.Windows.Input.MouseButtonEventArgs"/> that contains the event data.
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parents:
diff changeset
603 /// The event data reports that the left mouse button was pressed.
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diff changeset
604 /// </param>
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605 protected override void OnPreviewMouseLeftButtonDown(MouseButtonEventArgs e)
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606 {
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607 if (!e.Handled
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608 && e.ClickCount == 1
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609 && e.Source == this)
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610 {
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611 if (this.dragOrResizeStatus == DragOrResizeStatus.None &&
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612 this.previewDragOrResizeStatus != DragOrResizeStatus.None)
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613 {
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diff changeset
614 e.Handled = true;
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615
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diff changeset
616 this.dragOrResizeStatus = this.previewDragOrResizeStatus;
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diff changeset
617 this.startMousePosition = this.previousMousePosition = e.GetPosition(this);
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diff changeset
618
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diff changeset
619 this.CaptureMouse();
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diff changeset
620 }
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621 }
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622
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diff changeset
623 base.OnPreviewMouseLeftButtonDown(e);
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624 }
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625
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diff changeset
626 /// <summary>
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627 /// Invoked when an unhandled <see cref="E:System.Windows.Input.Mouse.PreviewMouseMove"/> attached event
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diff changeset
628 /// reaches an element in its route that is derived from this class.
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diff changeset
629 /// Implement this method to add class handling for this event.
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630 /// </summary>
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631 /// <param name="e">The <see cref="T:System.Windows.Input.MouseEventArgs"/> that contains the event data.</param>
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632 protected override void OnPreviewMouseMove(MouseEventArgs e)
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633 {
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634 if (this.dragOrResizeStatus == DragOrResizeStatus.None)
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635 {
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636 // http://www.switchonthecode.com/tutorials/wpf-snippet-reliably-getting-the-mouse-position
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637 Point point = e.GetPosition(this);
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638
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639 this.previewDragOrResizeStatus = this.GetDragOrResizeMode(point);
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640
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641 if (!this.CanResize
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642 && this.previewDragOrResizeStatus != DragOrResizeStatus.Drag
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643 && this.previewDragOrResizeStatus != DragOrResizeStatus.None)
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644 {
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645 this.previewDragOrResizeStatus = DragOrResizeStatus.None;
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646 }
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647
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648 this.SetResizeCursor(this.previewDragOrResizeStatus);
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649 }
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650 else if (this.IsMouseCaptured)
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651 {
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652 if (e.MouseDevice.LeftButton == MouseButtonState.Pressed)
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653 {
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654 // http://www.switchonthecode.com/tutorials/wpf-snippet-reliably-getting-the-mouse-position
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655 Point point = e.GetPosition(this);
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656
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657 if (Math.Abs(point.X - this.previousMousePosition.X) > SystemParameters.MinimumHorizontalDragDistance ||
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658 Math.Abs(point.Y - this.previousMousePosition.Y) > SystemParameters.MinimumVerticalDragDistance)
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659 {
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660 e.Handled = true;
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diff changeset
661
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662 this.AdjustBounds(point);
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663 this.previousMousePosition = point;
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664 }
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665 }
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666 else
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667 {
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668 this.CancelDragOrResize();
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669 }
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670 }
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671 else
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672 {
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673 this.CancelDragOrResize();
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674 }
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675
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676 base.OnPreviewMouseMove(e);
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677 }
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678
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diff changeset
679 /// <summary>
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diff changeset
680 /// Invoked when an unhandled <see cref="E:System.Windows.UIElement.MouseLeftButtonUp"/> routed event reaches an element
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
681 /// in its route that is derived from this class. Implement this method to add class handling for this event.
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diff changeset
682 /// </summary>
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diff changeset
683 /// <param name="e">
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diff changeset
684 /// The <see cref="T:System.Windows.Input.MouseButtonEventArgs"/> that contains the event data. The event data reports
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diff changeset
685 /// that the left mouse button was released.
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diff changeset
686 /// </param>
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687 protected override void OnPreviewMouseLeftButtonUp(System.Windows.Input.MouseButtonEventArgs e)
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diff changeset
688 {
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689 if (this.IsMouseCaptured)
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690 {
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691 e.Handled = true;
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diff changeset
692 this.CancelDragOrResize();
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diff changeset
693 }
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parents:
diff changeset
694
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parents:
diff changeset
695 base.OnPreviewMouseLeftButtonUp(e);
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diff changeset
696 }
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697
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diff changeset
698 #endregion
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diff changeset
699
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parents:
diff changeset
700 #region · Drag and Resize Methods ·
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parents:
diff changeset
701
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parents:
diff changeset
702 private DragOrResizeStatus GetDragOrResizeMode(Point position)
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parents:
diff changeset
703 {
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parents:
diff changeset
704 DragOrResizeStatus status = DragOrResizeStatus.None;
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parents:
diff changeset
705
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
706 if (this.CanDrag &&
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
707 this.partDragger != null &&
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
708 this.partDragger.IsMouseOver)
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parents:
diff changeset
709 {
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parents:
diff changeset
710 status = DragOrResizeStatus.Drag;
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parents:
diff changeset
711 }
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
712 else if (this.CanResize)
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
713 {
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
714 if (position.X <= ResizeSideThichness) // left
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parents:
diff changeset
715 {
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
716 status = this.GetLeftDragStatus(position);
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parents:
diff changeset
717 }
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parents:
diff changeset
718 else if (this.ActualWidth - position.X <= ResizeSideThichness) // right
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parents:
diff changeset
719 {
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
720 status = this.GetRightDragStatus(position);
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parents:
diff changeset
721 }
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parents:
diff changeset
722 else if (position.Y <= ResizeSideThichness) // top
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parents:
diff changeset
723 {
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parents:
diff changeset
724 status = this.GetTopDragStatus(position);
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parents:
diff changeset
725 }
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parents:
diff changeset
726 else if (this.ActualHeight - position.Y <= ResizeSideThichness) // bottom
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parents:
diff changeset
727 {
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parents:
diff changeset
728 status = this.GetBottomDragStatus(position);
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parents:
diff changeset
729 }
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parents:
diff changeset
730 }
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parents:
diff changeset
731
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parents:
diff changeset
732 return status;
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
733 }
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parents:
diff changeset
734
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parents:
diff changeset
735 private DragOrResizeStatus GetBottomDragStatus(Point position)
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parents:
diff changeset
736 {
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parents:
diff changeset
737 DragOrResizeStatus status;
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
738
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
739 if (position.X <= ResizeCornerSize)
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parents:
diff changeset
740 {
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parents:
diff changeset
741 status = DragOrResizeStatus.BottomLeft;
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parents:
diff changeset
742 }
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parents:
diff changeset
743 else if (this.ActualWidth - position.X <= ResizeCornerSize)
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parents:
diff changeset
744 {
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
745 status = DragOrResizeStatus.BottomRight;
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
746 }
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parents:
diff changeset
747 else
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parents:
diff changeset
748 {
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parents:
diff changeset
749 status = DragOrResizeStatus.BottomCenter;
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parents:
diff changeset
750 }
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parents:
diff changeset
751
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parents:
diff changeset
752 return status;
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
753 }
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parents:
diff changeset
754
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parents:
diff changeset
755 private DragOrResizeStatus GetTopDragStatus(Point position)
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parents:
diff changeset
756 {
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
757 DragOrResizeStatus status;
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
758
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
759 if (position.X <= ResizeCornerSize)
443821e55f06 Initial cleaned up add from Codeplex files
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parents:
diff changeset
760 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
761 status = DragOrResizeStatus.TopLeft;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
762 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
763 else if (this.ActualWidth - position.X <= ResizeCornerSize)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
764 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
765 status = DragOrResizeStatus.TopRight;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
766 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
767 else
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
768 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
769 status = DragOrResizeStatus.TopCenter;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
770 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
771
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
772 return status;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
773 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
774
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
775 private DragOrResizeStatus GetRightDragStatus(Point position)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
776 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
777 DragOrResizeStatus status;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
778
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
779 if (position.Y <= ResizeCornerSize)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
780 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
781 status = DragOrResizeStatus.TopRight;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
782 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
783 else if (this.ActualHeight - position.Y <= ResizeCornerSize)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
784 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
785 status = DragOrResizeStatus.BottomRight;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
786 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
787 else
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
788 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
789 status = DragOrResizeStatus.MiddleRight;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
790 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
791
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
792 return status;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
793 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
794
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
795 private DragOrResizeStatus GetLeftDragStatus(Point position)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
796 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
797 DragOrResizeStatus status;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
798
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
799 if (position.Y <= ResizeCornerSize)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
800 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
801 status = DragOrResizeStatus.TopLeft;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
802 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
803 else if (this.ActualHeight - position.Y <= ResizeCornerSize)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
804 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
805 status = DragOrResizeStatus.BottomLeft;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
806 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
807 else
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
808 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
809 status = DragOrResizeStatus.MiddleLeft;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
810 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
811
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
812 return status;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
813 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
814
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
815 private void CancelDragOrResize()
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
816 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
817 this.Cursor = null;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
818 this.dragOrResizeStatus = DragOrResizeStatus.None;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
819 this.previewDragOrResizeStatus = DragOrResizeStatus.None;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
820
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
821 this.ReleaseMouseCapture();
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
822 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
823
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
824 private void SetResizeCursor(DragOrResizeStatus resizeStatus)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
825 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
826 if (this.CanResize || this.CanDrag)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
827 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
828 if (resizeStatus.IsDragging)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
829 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
830 this.Cursor = null;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
831 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
832 else if (resizeStatus.IsOnTopLeftOrBottomRight)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
833 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
834 this.Cursor = Cursors.SizeNWSE;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
835 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
836 else if (resizeStatus.IsOnTopRightOrBottomLeft)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
837 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
838 this.Cursor = Cursors.SizeNESW;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
839 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
840 else if (resizeStatus.IsOnTopRightOrBottomLeft)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
841 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
842 this.Cursor = Cursors.SizeNESW;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
843 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
844 else if (resizeStatus.IsOnTopCenterOrBottomCenter)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
845 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
846 this.Cursor = Cursors.SizeNS;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
847 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
848 else if (resizeStatus.IsOnMiddleLeftOrMiddleRight)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
849 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
850 this.Cursor = Cursors.SizeWE;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
851 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
852 else if (this.Cursor != null)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
853 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
854 this.Cursor = null;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
855 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
856 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
857 else if (this.Cursor != null)
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
858 {
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
859 this.Cursor = null;
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
860 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
861 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
862
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
863 #endregion
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
864 }
443821e55f06 Initial cleaned up add from Codeplex files
stevenh7776 stevenhollidge@hotmail.com
parents:
diff changeset
865 }