Mercurial > projects > dwt-addons
annotate dwtx/jface/viewers/StructuredSelection.d @ 43:ea8ff534f622
Fix override and super aliases
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Fri, 11 Apr 2008 01:24:25 +0200 |
| parents | b6c35faf97c8 |
| children | 46a6e0e6ccd4 |
| rev | line source |
|---|---|
| 10 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2007 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwtx.jface.viewers.StructuredSelection; | |
| 14 | |
| 15 import dwtx.jface.viewers.IStructuredSelection; | |
| 16 | |
| 17 // import java.util.Arrays; | |
| 18 // import java.util.Iterator; | |
| 19 import tango.util.collection.ArraySeq; | |
| 20 import tango.util.collection.model.Seq; | |
| 21 import tango.util.collection.model.SeqView; | |
| 22 import tango.util.collection.model.Iterator; | |
| 23 | |
| 24 import dwtx.core.runtime.Assert; | |
| 25 import dwtx.jface.resource.JFaceResources; | |
| 26 | |
| 27 import dwt.dwthelper.utils; | |
| 28 | |
| 29 /** | |
| 30 * A concrete implementation of the <code>IStructuredSelection</code> interface, | |
| 31 * suitable for instantiating. | |
| 32 * <p> | |
| 33 * This class is not intended to be subclassed. | |
| 34 * </p> | |
| 35 */ | |
| 36 public class StructuredSelection : IStructuredSelection { | |
| 37 | |
| 38 /** | |
| 39 * The element that make up this structured selection. | |
| 40 */ | |
| 41 private Object[] elements; | |
| 42 | |
| 43 /** | |
| 44 * The canonical empty selection. This selection should be used instead of | |
| 45 * <code>null</code>. | |
| 46 */ | |
| 47 public static const StructuredSelection EMPTY; | |
| 48 static this(){ | |
| 49 EMPTY = new StructuredSelection(); | |
| 50 } | |
| 51 /** | |
| 52 * Creates a new empty selection. | |
| 53 * See also the static field <code>EMPTY</code> which contains an empty selection singleton. | |
| 54 * | |
| 55 * @see #EMPTY | |
| 56 */ | |
| 57 public this() { | |
| 58 } | |
| 59 | |
| 60 /** | |
| 61 * Creates a structured selection from the given elements. | |
| 62 * | |
| 63 * @param elements an array of elements | |
| 64 */ | |
| 65 public this(Object[] elements) { | |
| 66 this.elements = new Object[elements.length]; | |
| 67 System.arraycopy(elements, 0, this.elements, 0, elements.length); | |
| 68 } | |
| 69 | |
| 70 /** | |
| 71 * Creates a structured selection containing a single object. | |
| 72 * The object must not be <code>null</code>. | |
| 73 * | |
| 74 * @param element the element | |
| 75 */ | |
| 76 public this(Object element) { | |
| 77 Assert.isNotNull(element); | |
| 78 elements = [ element ]; | |
| 79 } | |
| 80 | |
| 81 /** | |
| 82 * Creates a structured selection from the given <code>List</code>. | |
| 83 * @param elements list of selected elements | |
| 84 */ | |
| 85 public this(SeqView!(Object) elements) { | |
| 86 Assert.isNotNull(cast(Object)elements); | |
| 87 this.elements = elements.toArray(); | |
| 88 } | |
| 89 | |
| 90 /** | |
| 91 * Returns whether this structured selection is equal to the given object. | |
| 92 * Two structured selections are equal if they contain the same elements | |
| 93 * in the same order. | |
| 94 * | |
| 95 * @param o the other object | |
| 96 * @return <code>true</code> if they are equal, and <code>false</code> otherwise | |
| 97 */ | |
|
43
ea8ff534f622
Fix override and super aliases
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
98 public override int opEquals(Object o) { |
| 10 | 99 if (this is o) { |
| 100 return true; | |
| 101 } | |
| 102 //null and other classes | |
| 103 if (!(cast(StructuredSelection)o )) { | |
| 104 return false; | |
| 105 } | |
| 106 StructuredSelection s2 = cast(StructuredSelection) o; | |
| 107 | |
| 108 // either or both empty? | |
| 109 if (isEmpty()) { | |
| 110 return s2.isEmpty(); | |
| 111 } | |
| 112 if (s2.isEmpty()) { | |
| 113 return false; | |
| 114 } | |
| 115 | |
| 116 //size | |
| 117 int myLen = elements.length; | |
| 118 if (myLen !is s2.elements.length) { | |
| 119 return false; | |
| 120 } | |
| 121 //element comparison | |
| 122 for (int i = 0; i < myLen; i++) { | |
| 123 if (!elements[i].opEquals(s2.elements[i])) { | |
| 124 return false; | |
| 125 } | |
| 126 } | |
| 127 return true; | |
| 128 } | |
| 129 | |
| 130 /* (non-Javadoc) | |
| 131 * Method declared in IStructuredSelection. | |
| 132 */ | |
| 133 public Object getFirstElement() { | |
| 134 return isEmpty() ? null : elements[0]; | |
| 135 } | |
| 136 | |
| 137 /* (non-Javadoc) | |
| 138 * Method declared in ISelection. | |
| 139 */ | |
| 140 public bool isEmpty() { | |
| 141 return elements is null || elements.length is 0; | |
| 142 } | |
| 143 | |
| 144 /* (non-Javadoc) | |
| 145 * Method declared in IStructuredSelection. | |
| 146 */ | |
| 147 public Iterator!(Object) iterator() { | |
| 148 auto res = new ArraySeq!(Object); | |
| 149 res.capacity( elements.length ); | |
| 150 foreach( o; elements ){ | |
| 151 res.append( o ); | |
| 152 } | |
| 153 return res.elements; | |
| 154 } | |
| 155 | |
| 156 /* (non-Javadoc) | |
| 157 * Method declared in IStructuredSelection. | |
| 158 */ | |
| 159 public int size() { | |
| 160 return elements is null ? 0 : elements.length; | |
| 161 } | |
| 162 | |
| 163 /* (non-Javadoc) | |
| 164 * Method declared in IStructuredSelection. | |
| 165 */ | |
| 166 public Object[] toArray() { | |
| 167 return elements is null ? new Object[0] : elements.dup; | |
| 168 } | |
| 169 | |
| 170 /* (non-Javadoc) | |
| 171 * Method declared in IStructuredSelection. | |
| 172 */ | |
| 173 public SeqView!(Object) toList() { | |
| 174 auto res = new ArraySeq!(Object); | |
| 175 res.capacity( elements.length ); | |
| 176 foreach( o; elements ){ | |
| 177 res.append( o ); | |
| 178 } | |
| 179 return res; | |
| 180 } | |
| 181 | |
| 182 /** | |
| 183 * Internal method which returns a string representation of this | |
| 184 * selection suitable for debug purposes only. | |
| 185 * | |
| 186 * @return debug string | |
| 187 */ | |
|
43
ea8ff534f622
Fix override and super aliases
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
188 public override String toString() { |
| 10 | 189 return isEmpty() ? JFaceResources.getString("<empty_selection>") : (cast(Object)toList()).toString(); //$NON-NLS-1$ |
| 190 } | |
| 191 } |