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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2006 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 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module dwtx.text.edits.DeleteEdit;
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14
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15 import dwt.dwthelper.utils;
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16
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17 import dwtx.jface.text.BadLocationException;
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18 import dwtx.jface.text.IDocument;
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19
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20 /**
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21 * Text edit to delete a range in a document.
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22 * <p>
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23 * A delete edit is equivalent to <code>ReplaceEdit(
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24 * offset, length, "")</code>.
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25 *
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26 * @since 3.0
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27 */
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28 public final class DeleteEdit : TextEdit {
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29
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30 /**
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31 * Constructs a new delete edit.
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32 *
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33 * @param offset the offset of the range to replace
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34 * @param length the length of the range to replace
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35 */
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130
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36 public this(int offset, int length) {
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129
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37 super(offset, length);
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38 }
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39
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40 /*
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41 * Copy constructor
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42 */
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130
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43 private this(DeleteEdit other) {
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129
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44 super(other);
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45 }
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46
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47 /*
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48 * @see TextEdit#doCopy
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49 */
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50 protected TextEdit doCopy() {
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51 return new DeleteEdit(this);
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52 }
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53
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54 /*
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55 * @see TextEdit#accept0
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56 */
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57 protected void accept0(TextEditVisitor visitor) {
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58 bool visitChildren= visitor.visit(this);
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59 if (visitChildren) {
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60 acceptChildren(visitor);
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61 }
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62 }
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63
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64 /*
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65 * @see TextEdit#performDocumentUpdating
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66 */
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67 int performDocumentUpdating(IDocument document) throws BadLocationException {
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68 document.replace(getOffset(), getLength(), ""); //$NON-NLS-1$
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69 fDelta= -getLength();
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70 return fDelta;
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71 }
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72
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73 /*
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74 * @see TextEdit#deleteChildren
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75 */
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76 bool deleteChildren() {
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77 return true;
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78 }
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79 }
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