Mercurial > projects > dwt-linux
annotate dwt/graphics/GlyphMetrics.d @ 259:c0d810de7093
Update SWT 3.4M7 to 3.4
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 29 Jun 2008 14:33:38 +0200 |
| parents | 380bad9f6852 |
| children |
| rev | line source |
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| 72 | 1 /******************************************************************************* |
| 259 | 2 * Copyright (c) 2000, 2008 IBM Corporation and others. |
| 21 | 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 | |
| 72 | 10 * Port to the D programming language: |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 21 | 12 *******************************************************************************/ |
| 13 module dwt.graphics.GlyphMetrics; | |
| 14 | |
| 238 | 15 import dwt.dwthelper.utils; |
| 16 | |
| 71 | 17 import dwt.DWT; |
| 21 | 18 import tango.text.convert.Format; |
| 19 /** | |
| 20 * Instances of this class represent glyph metrics. | |
| 21 * <p> | |
| 22 * The hashCode() method in this class uses the values of the public | |
| 23 * fields to compute the hash value. When storing instances of the | |
| 24 * class in hashed collections, do not modify these fields after the | |
| 25 * object has been inserted. | |
| 26 * </p> | |
| 27 * <p> | |
| 28 * Application code does <em>not</em> need to explicitly release the | |
| 29 * resources managed by each instance when those instances are no longer | |
| 30 * required, and thus no <code>dispose()</code> method is provided. | |
| 31 * </p> | |
| 32 * | |
| 33 * @see TextStyle | |
| 34 * @see TextLayout | |
| 259 | 35 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| 21 | 36 * |
| 37 * @since 3.2 | |
| 38 */ | |
| 39 public final class GlyphMetrics { | |
| 40 | |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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41 /** |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
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parents:
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42 * the ascent of the GlyphMetrics |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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43 */ |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
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parents:
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44 public int ascent; |
| 21 | 45 |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
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parents:
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46 /** |
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8cec8f536af3
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Frank Benoit <benoit@tionex.de>
parents:
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47 * the descent of the GlyphMetrics |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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48 */ |
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Frank Benoit <benoit@tionex.de>
parents:
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49 public int descent; |
| 21 | 50 |
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Frank Benoit <benoit@tionex.de>
parents:
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51 /** |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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52 * the width of the GlyphMetrics |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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diff
changeset
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53 */ |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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54 public int width; |
| 21 | 55 |
| 56 /** | |
| 57 * Constructs an instance of this class with the given | |
| 58 * ascent, descent and width values. | |
| 59 * | |
| 259 | 60 * @param ascent the GlyphMetrics ascent |
| 61 * @param descent the GlyphMetrics descent | |
| 62 * @param width the GlyphMetrics width | |
| 63 * | |
| 21 | 64 * @exception IllegalArgumentException <ul> |
| 65 * <li>ERROR_INVALID_ARGUMENT - if the ascent, descent or width argument is negative</li> | |
| 66 * </ul> | |
| 67 */ | |
| 68 public this(int ascent, int descent, int width) { | |
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parents:
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69 if (ascent < 0 || descent < 0 || width < 0) { |
| 259 | 70 DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
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parents:
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71 } |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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changeset
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72 this.ascent = ascent; |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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changeset
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73 this.descent = descent; |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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diff
changeset
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74 this.width = width; |
| 21 | 75 } |
| 76 | |
| 77 /** | |
| 78 * Compares the argument to the receiver, and returns true | |
| 79 * if they represent the <em>same</em> object using a class | |
| 80 * specific comparison. | |
| 81 * | |
| 82 * @param object the object to compare with this object | |
| 83 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise | |
| 84 * | |
| 85 * @see #hashCode() | |
| 86 */ | |
| 87 public override int opEquals (Object object) { | |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
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parents:
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88 if (object is this) return true; |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
21
diff
changeset
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89 if (auto metrics = cast(GlyphMetrics)object ){ |
| 194 | 90 return metrics.ascent is ascent && metrics.descent is descent && metrics.width is width; |
| 21 | 91 } |
| 92 return false; | |
| 93 } | |
| 94 | |
| 95 | |
| 96 /** | |
| 97 * Returns an integer hash code for the receiver. Any two | |
| 98 * objects that return <code>true</code> when passed to | |
| 99 * <code>equals</code> must return the same value for this | |
| 100 * method. | |
| 101 * | |
| 102 * @return the receiver's hash | |
| 103 * | |
| 104 * @see #equals(Object) | |
| 105 */ | |
| 106 public override hash_t toHash () { | |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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107 return ascent ^ descent ^ width; |
| 21 | 108 } |
| 109 | |
| 110 /** | |
| 111 * Returns a string containing a concise, human-readable | |
| 112 * description of the receiver. | |
| 113 * | |
| 114 * @return a string representation of the <code>GlyphMetrics</code> | |
| 115 */ | |
| 238 | 116 public override String toString () { |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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117 return Format( "GlyphMetrics {{{}, {}, {}}", ascent, descent, width ); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ |
| 21 | 118 } |
| 119 | |
| 120 } |