Mercurial > projects > dwt-win
view dwt/graphics/GlyphMetrics.d @ 212:ab60f3309436
reverted the char[] to String and use the an alias.
author | Frank Benoit <benoit@tionex.de> |
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date | Mon, 05 May 2008 00:12:38 +0200 |
parents | 06825fa0ae76 |
children | fd9c62a2998e |
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/******************************************************************************* * Copyright (c) 2000, 2006 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module dwt.graphics.GlyphMetrics; import dwt.DWT; import tango.text.convert.Format; import dwt.dwthelper.utils; /** * Instances of this class represent glyph metrics. * <p> * The hashCode() method in this class uses the values of the public * fields to compute the hash value. When storing instances of the * class in hashed collections, do not modify these fields after the * object has been inserted. * </p> * <p> * Application code does <em>not</em> need to explicitly release the * resources managed by each instance when those instances are no longer * required, and thus no <code>dispose()</code> method is provided. * </p> * * @see TextStyle * @see TextLayout * * @since 3.2 */ public final class GlyphMetrics { /** * the ascent of the GlyphMetrics */ public int ascent; /** * the descent of the GlyphMetrics */ public int descent; /** * the width of the GlyphMetrics */ public int width; /** * Constructs an instance of this class with the given * ascent, descent and width values. * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_ARGUMENT - if the ascent, descent or width argument is negative</li> * </ul> */ public this(int ascent, int descent, int width) { if (ascent < 0 || descent < 0 || width < 0) { DWT.error(DWT.ERROR_INVALID_ARGUMENT); } this.ascent = ascent; this.descent = descent; this.width = width; } /** * Compares the argument to the receiver, and returns true * if they represent the <em>same</em> object using a class * specific comparison. * * @param object the object to compare with this object * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise * * @see #hashCode() */ public override int opEquals (Object object) { if (object is this) return true; if (auto metrics = cast(GlyphMetrics)object ){ return metrics.ascent == ascent && metrics.descent == descent && metrics.width == width; } return false; } /** * Returns an integer hash code for the receiver. Any two * objects that return <code>true</code> when passed to * <code>equals</code> must return the same value for this * method. * * @return the receiver's hash * * @see #equals(Object) */ public override hash_t toHash () { return ascent ^ descent ^ width; } /** * Returns a string containing a concise, human-readable * description of the receiver. * * @return a string representation of the <code>GlyphMetrics</code> */ public override String toString () { return Format( "GlyphMetrics {{{}, {}, {}}", ascent, descent, width ); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ } }