| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jface.text; |
| |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.graphics.Color; |
| |
| |
| /** |
| * Description of textual attributes such as color and style. |
| * Text attributes are considered value objects. |
| */ |
| public class TextAttribute { |
| |
| /** Foreground color */ |
| private Color foreground; |
| |
| /** Background color */ |
| private Color background; |
| |
| /** The text style */ |
| private int style; |
| |
| /** |
| * Creates a text attribute with the given colors and style. |
| * |
| * @param foreground the foreground color |
| * @param background the background color |
| * @param style the style |
| */ |
| public TextAttribute(Color foreground, Color background, int style) { |
| this.foreground= foreground; |
| this.background= background; |
| this.style= style; |
| } |
| |
| /** |
| * Creates a text attribute for the given foreground color, no background color and |
| * with the SWT normal style. |
| * |
| * @param foreground the foreground color |
| */ |
| public TextAttribute(Color foreground) { |
| this(foreground, null, SWT.NORMAL); |
| } |
| |
| /* |
| * @see Object#equals(Object) |
| */ |
| public boolean equals(Object object) { |
| |
| if (object == this) |
| return true; |
| |
| if (!(object instanceof TextAttribute)) |
| return false; |
| |
| TextAttribute a= (TextAttribute) object; |
| return (a.style == style && equals(a.foreground, foreground) && equals(a.background, background)); |
| } |
| |
| /** |
| * Returns whether the two given objects are equal. |
| * |
| * @param o1 the first object, can be <code>null</code> |
| * @param o2 the second object, can be <code>null</code> |
| * @return <code>true</code> if the given objects are equals |
| * @since 2.0 |
| */ |
| private boolean equals(Object o1, Object o2) { |
| if (o1 != null) |
| return o1.equals(o2); |
| return (o2 == null); |
| } |
| |
| /* |
| * @see Object#hashCode() |
| */ |
| public int hashCode() { |
| int foregroundHash= foreground == null ? 0 : foreground.hashCode(); |
| int backgroundHash= background == null ? 0 : background.hashCode(); |
| return (foregroundHash << 24) | (backgroundHash << 16) | style; |
| } |
| |
| /** |
| * Returns the attribute's foreground color. |
| * |
| * @return the attribute's foreground color |
| */ |
| public Color getForeground() { |
| return foreground; |
| } |
| |
| /** |
| * Returns the attribute's background color. |
| * |
| * @return the attribute's background color |
| */ |
| public Color getBackground() { |
| return background; |
| } |
| |
| /** |
| * Returns the attribute's style. |
| * |
| * @return the attribute's style |
| */ |
| public int getStyle() { |
| return style; |
| } |
| } |