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annotate dwt/dnd/DropTargetEvent.d @ 122:2e671fa40eec

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Ported dwt.dnd, dwt.opengl, dwt.printing and dwt.program
author Jacob Carlborg <doob@me.com>
date Wed, 31 Dec 2008 21:01:13 +0100
parents 1c12673c65ca
children 535243e6d16a
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2008 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 *
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11 * Port to the D programming language:
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12 * Jacob Carlborg <doob@me.com>
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13 *******************************************************************************/
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14 module dwt.dnd.DropTargetEvent;
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16 import dwt.dwthelper.utils;
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18 import dwt.events.TypedEvent;
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19 import dwt.widgets.Widget;
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21 import dwt.dnd.DNDEvent;
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22 import dwt.dnd.TransferData;
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23 import dwt.widgets.Event;
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24
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25 /**
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26 * The DropTargetEvent contains the event information passed in the methods of the DropTargetListener.
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27 *
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28 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
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29 */
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30 public class DropTargetEvent : TypedEvent {
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31 /**
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32 * The x-cordinate of the cursor relative to the <code>Display</code>
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33 */
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34 public int x;
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35
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36 /**
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37 * The y-cordinate of the cursor relative to the <code>Display</code>
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38 */
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39 public int y;
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41 /**
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42 * The operation being performed.
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43 * @see DND#DROP_NONE
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44 * @see DND#DROP_MOVE
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45 * @see DND#DROP_COPY
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46 * @see DND#DROP_LINK
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47 */
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48 public int detail;
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49
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50 /**
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51 * A bitwise OR'ing of the operations that the DragSource can support
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52 * (e.g. DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_LINK).
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53 * The detail value must be a member of this list or DND.DROP_NONE.
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54 * @see DND#DROP_NONE
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55 * @see DND#DROP_MOVE
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56 * @see DND#DROP_COPY
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57 * @see DND#DROP_LINK
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58 */
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59 public int operations;
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60
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61 /**
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62 * A bitwise OR'ing of the drag under effect feedback to be displayed to the user
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63 * (e.g. DND.FEEDBACK_SELECT | DND.FEEDBACK_SCROLL | DND.FEEDBACK_EXPAND).
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64 * <p>A value of DND.FEEDBACK_NONE indicates that no drag under effect will be displayed.</p>
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65 * <p>Feedback effects will only be applied if they are applicable.</p>
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66 * <p>The default value is DND.FEEDBACK_SELECT.</p>
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67 * @see DND#FEEDBACK_NONE
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68 * @see DND#FEEDBACK_SELECT
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69 * @see DND#FEEDBACK_INSERT_BEFORE
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70 * @see DND#FEEDBACK_INSERT_AFTER
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71 * @see DND#FEEDBACK_SCROLL
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72 * @see DND#FEEDBACK_EXPAND
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73 */
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74 public int feedback;
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75
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76 /**
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77 * If the associated control is a table or tree, this field contains the item located
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78 * at the cursor coordinates.
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79 */
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80 public Widget item;
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81
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82 /**
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83 * The type of data that will be dropped.
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84 */
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85 public TransferData currentDataType;
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86
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87 /**
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88 * A list of the types of data that the DragSource is capable of providing.
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89 * The currentDataType must be a member of this list.
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90 */
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91 public TransferData[] dataTypes;
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92
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93 static const long serialVersionUID = 3256727264573338678L;
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94
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95 /**
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96 * Constructs a new instance of this class based on the
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97 * information in the given untyped event.
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98 *
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99 * @param e the untyped event containing the information
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100 */
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101 public this(DNDEvent e) {
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102 super(cast(Event) e);
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103 this.data = e.data;
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104 this.x = e.x;
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105 this.y = e.y;
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106 this.detail = e.detail;
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107 this.currentDataType = e.dataType;
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108 this.dataTypes = e.dataTypes;
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109 this.operations = e.operations;
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110 this.feedback = e.feedback;
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111 this.item = e.item;
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112 }
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113 void updateEvent(DNDEvent e) {
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114 e.widget = this.widget;
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115 e.time = this.time;
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116 e.data = this.data;
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117 e.x = this.x;
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118 e.y = this.y;
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119 e.detail = this.detail;
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120 e.dataType = this.currentDataType;
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121 e.dataTypes = this.dataTypes;
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122 e.operations = this.operations;
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123 e.feedback = this.feedback;
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124 e.item = this.item;
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125 }
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126 /**
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127 * Returns a string containing a concise, human-readable
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128 * description of the receiver.
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129 *
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130 * @return a string representation of the event
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131 */
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132 public String toString() {
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133 String string = super.toString ();
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134 StringBuffer sb = new StringBuffer();
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135 sb.append(string.substring (0, string.length() - 1)); // remove trailing '}'
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136 sb.append(" x="); sb.append(x);
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137 sb.append(" y="); sb.append(y);
102
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138 sb.append(" item="); sb.append(item.toString);
45
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139 sb.append(" operations="); sb.append(operations);
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140 sb.append(" operation="); sb.append(detail);
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141 sb.append(" feedback="); sb.append(feedback);
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142 sb.append(" dataTypes={ ");
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143 if (dataTypes !is null) {
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144 for (int i = 0; i < dataTypes.length; i++) {
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145 sb.append(dataTypes[i].type); sb.append(' ');
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146 }
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147 }
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148 sb.append('}');
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149 sb.append(" currentDataType="); sb.append(currentDataType !is null ? currentDataType.type : '0');
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150 sb.append('}');
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151 return sb.toString();
0
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152 }
45
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153 }