Mercurial > projects > dwt2
annotate org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/graphics/GlyphMetrics.d @ 36:d46287db17ed
rakefile reorg, swt win phobosification
author | Frank Benoit <benoit@tionex.de> |
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date | Tue, 24 Mar 2009 08:48:41 +0100 |
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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 * 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 org.eclipse.swt.graphics.GlyphMetrics; |
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14 |
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15 import org.eclipse.swt.SWT; |
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16 import java.lang.all; |
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17 |
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18 /** |
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19 * Instances of this class represent glyph metrics. |
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20 * <p> |
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21 * The hashCode() method in this class uses the values of the public |
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22 * fields to compute the hash value. When storing instances of the |
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23 * class in hashed collections, do not modify these fields after the |
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24 * object has been inserted. |
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25 * </p> |
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26 * <p> |
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27 * Application code does <em>not</em> need to explicitly release the |
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28 * resources managed by each instance when those instances are no longer |
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29 * required, and thus no <code>dispose()</code> method is provided. |
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30 * </p> |
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31 * |
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32 * @see TextStyle |
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33 * @see TextLayout |
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34 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
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35 * |
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36 * @since 3.2 |
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37 */ |
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38 public final class GlyphMetrics { |
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39 |
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40 /** |
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41 * the ascent of the GlyphMetrics |
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42 */ |
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43 public int ascent; |
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44 |
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45 /** |
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46 * the descent of the GlyphMetrics |
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47 */ |
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48 public int descent; |
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49 |
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50 /** |
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51 * the width of the GlyphMetrics |
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52 */ |
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53 public int width; |
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54 |
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55 /** |
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56 * Constructs an instance of this class with the given |
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57 * ascent, descent and width values. |
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58 * |
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59 * @param ascent the GlyphMetrics ascent |
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60 * @param descent the GlyphMetrics descent |
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61 * @param width the GlyphMetrics width |
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62 * |
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63 * @exception IllegalArgumentException <ul> |
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64 * <li>ERROR_INVALID_ARGUMENT - if the ascent, descent or width argument is negative</li> |
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65 * </ul> |
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66 */ |
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67 public this(int ascent, int descent, int width) { |
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68 if (ascent < 0 || descent < 0 || width < 0) { |
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69 SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
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70 } |
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71 this.ascent = ascent; |
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72 this.descent = descent; |
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73 this.width = width; |
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74 } |
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75 |
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76 /** |
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77 * Compares the argument to the receiver, and returns true |
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78 * if they represent the <em>same</em> object using a class |
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79 * specific comparison. |
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80 * |
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81 * @param object the object to compare with this object |
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82 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise |
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83 * |
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84 * @see #hashCode() |
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85 */ |
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86 public override equals_t opEquals (Object object) { |
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87 if (object is this) return true; |
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88 if (auto metrics = cast(GlyphMetrics)object ){ |
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89 return metrics.ascent == ascent && metrics.descent == descent && metrics.width == width; |
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90 } |
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91 return false; |
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92 } |
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93 |
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94 |
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95 /** |
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96 * Returns an integer hash code for the receiver. Any two |
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97 * objects that return <code>true</code> when passed to |
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98 * <code>equals</code> must return the same value for this |
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99 * method. |
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100 * |
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101 * @return the receiver's hash |
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102 * |
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103 * @see #equals(Object) |
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104 */ |
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105 public override hash_t toHash () { |
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106 return ascent ^ descent ^ width; |
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107 } |
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108 |
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109 /** |
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110 * Returns a string containing a concise, human-readable |
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111 * description of the receiver. |
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112 * |
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113 * @return a string representation of the <code>GlyphMetrics</code> |
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114 */ |
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115 public override String toString () { |
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116 return Format( "GlyphMetrics {{{}, {}, {}}", ascent, descent, width ); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ |
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117 } |
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118 |
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119 } |