| /* |
| * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package javax.accessibility; |
| |
| import java.awt.Point; |
| import java.awt.Rectangle; |
| |
| import javax.swing.text.AttributeSet; |
| |
| /** |
| * The {@code AccessibleText} interface should be implemented by all classes |
| * that present textual information on the display. This interface provides the |
| * standard mechanism for an assistive technology to access that text via its |
| * content, attributes, and spatial location. Applications can determine if an |
| * object supports the {@code AccessibleText} interface by first obtaining its |
| * {@code AccessibleContext} (see {@link Accessible}) and then calling the |
| * {@link AccessibleContext#getAccessibleText} method of |
| * {@code AccessibleContext}. If the return value is not {@code null}, the |
| * object supports this interface. |
| * |
| * @author Peter Korn |
| * @see Accessible |
| * @see Accessible#getAccessibleContext |
| * @see AccessibleContext |
| * @see AccessibleContext#getAccessibleText |
| */ |
| public interface AccessibleText { |
| |
| /** |
| * Constant used to indicate that the part of the text that should be |
| * retrieved is a character. |
| * |
| * @see #getAtIndex |
| * @see #getAfterIndex |
| * @see #getBeforeIndex |
| */ |
| public static final int CHARACTER = 1; |
| |
| /** |
| * Constant used to indicate that the part of the text that should be |
| * retrieved is a word. |
| * |
| * @see #getAtIndex |
| * @see #getAfterIndex |
| * @see #getBeforeIndex |
| */ |
| public static final int WORD = 2; |
| |
| /** |
| * Constant used to indicate that the part of the text that should be |
| * retrieved is a sentence. |
| * <p> |
| * A sentence is a string of words which expresses an assertion, a question, |
| * a command, a wish, an exclamation, or the performance of an action. In |
| * English locales, the string usually begins with a capital letter and |
| * concludes with appropriate end punctuation; such as a period, question or |
| * exclamation mark. Other locales may use different capitalization and/or |
| * punctuation. |
| * |
| * @see #getAtIndex |
| * @see #getAfterIndex |
| * @see #getBeforeIndex |
| */ |
| public static final int SENTENCE = 3; |
| |
| /** |
| * Given a point in local coordinates, return the zero-based index of the |
| * character under that point. If the point is invalid, this method returns |
| * -1. |
| * |
| * @param p the point in local coordinates |
| * @return the zero-based index of the character under {@code Point p}; if |
| * point is invalid return -1. |
| */ |
| public int getIndexAtPoint(Point p); |
| |
| /** |
| * Determines the bounding box of the character at the given index into the |
| * string. The bounds are returned in local coordinates. If the index is |
| * invalid an empty rectangle is returned. |
| * |
| * @param i the index into the string |
| * @return the screen coordinates of the character's bounding box, if index |
| * is invalid return an empty rectangle. |
| */ |
| public Rectangle getCharacterBounds(int i); |
| |
| /** |
| * Returns the number of characters (valid indicies). |
| * |
| * @return the number of characters |
| */ |
| public int getCharCount(); |
| |
| /** |
| * Returns the zero-based offset of the caret. |
| * <p> |
| * Note: That to the right of the caret will have the same index value as |
| * the offset (the caret is between two characters). |
| * |
| * @return the zero-based offset of the caret |
| */ |
| public int getCaretPosition(); |
| |
| /** |
| * Returns the {@code String} at a given index. |
| * |
| * @param part the CHARACTER, WORD, or SENTENCE to retrieve |
| * @param index an index within the text |
| * @return the letter, word, or sentence |
| */ |
| public String getAtIndex(int part, int index); |
| |
| /** |
| * Returns the {@code String} after a given index. |
| * |
| * @param part the CHARACTER, WORD, or SENTENCE to retrieve |
| * @param index an index within the text |
| * @return the letter, word, or sentence |
| */ |
| public String getAfterIndex(int part, int index); |
| |
| /** |
| * Returns the {@code String} before a given index. |
| * |
| * @param part the CHARACTER, WORD, or SENTENCE to retrieve |
| * @param index an index within the text |
| * @return the letter, word, or sentence |
| */ |
| public String getBeforeIndex(int part, int index); |
| |
| /** |
| * Returns the {@code AttributeSet} for a given character at a given index. |
| * |
| * @param i the zero-based index into the text |
| * @return the {@code AttributeSet} of the character |
| */ |
| public AttributeSet getCharacterAttribute(int i); |
| |
| /** |
| * Returns the start offset within the selected text. If there is no |
| * selection, but there is a caret, the start and end offsets will be the |
| * same. |
| * |
| * @return the index into the text of the start of the selection |
| */ |
| public int getSelectionStart(); |
| |
| /** |
| * Returns the end offset within the selected text. If there is no |
| * selection, but there is a caret, the start and end offsets will be the |
| * same. |
| * |
| * @return the index into the text of the end of the selection |
| */ |
| public int getSelectionEnd(); |
| |
| /** |
| * Returns the portion of the text that is selected. |
| * |
| * @return the {@code String} portion of the text that is selected |
| */ |
| public String getSelectedText(); |
| } |