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Diffstat (limited to 'libjava/javax/accessibility/AccessibleText.java')
-rw-r--r-- | libjava/javax/accessibility/AccessibleText.java | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/libjava/javax/accessibility/AccessibleText.java b/libjava/javax/accessibility/AccessibleText.java new file mode 100644 index 00000000000..14c324c7708 --- /dev/null +++ b/libjava/javax/accessibility/AccessibleText.java @@ -0,0 +1,184 @@ +/* AccessibleText.java -- aids in accessibly manipulating text + Copyright (C) 2000, 2002 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +02111-1307 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package javax.accessibility; + +import java.awt.Rectangle; +import java.awt.Point; +import javax.swing.text.AttributeSet; + +/** + * Objects which present textual information on the display should implement + * this interface. Accessibility software can use the implementations of + * this interface to change the attributes and spacial location of the text. + * + * <p>The <code>AccessibleContext.getAccessibleText()</code> method + * should return <code>null</code> if an object does not implement this + * interface. + * + * @author Eric Blake <ebb9@email.byu.edu> + * @see Accessible + * @see AccessibleContext + * @see AccessibleContext#getAccessibleText() + * @since 1.2 + * @status updated to 1.4 + */ +public interface AccessibleText +{ + /** + * Constant designating that the next selection should be a character. + * + * @see #getAtIndex(int, int) + * @see #getAfterIndex(int, int) + * @see #getBeforeIndex(int, int) + */ + int CHARACTER = 1; + + /** + * Constant designating that the next selection should be a word. + * + * @see #getAtIndex(int, int) + * @see #getAfterIndex(int, int) + * @see #getBeforeIndex(int, int) + */ + int WORD = 2; + + /** + * Constant designating that the next selection should be a sentence. + * + * @see #getAtIndex(int, int) + * @see #getAfterIndex(int, int) + * @see #getBeforeIndex(int, int) + */ + int SENTENCE = 3; + + /** + * Given a point in the coordinate system of this object, return the + * 0-based index of the character at that point, or -1 if there is none. + * + * @param p the point to look at + * @return the character index, or -1 + */ + int getIndexAtPoint(Point point); + + /** + * Determines the bounding box of the indexed character. Returns an empty + * rectangle if the index is out of bounds. + * + * @param index the 0-based character index + * @return the bounding box, may be empty + */ + Rectangle getCharacterBounds(int index); + + /** + * Return the number of characters. + * + * @return the character count + */ + int getCharCount(); + + /** + * Return the offset of the character. The offset matches the index of the + * character to the right, since the carat lies between characters. + * + * @return the 0-based caret position + */ + int getCaretPosition(); + + /** + * Returns the section of text at the index, or null if the index or part + * is invalid. + * + * @param part {@link CHARACTER}, {@link WORD}, or {@link SENTENCE} + * @param index the 0-based character index + * @return the selection of text at that index, or null + */ + String getAtIndex(int part, int index); + + /** + * Returns the section of text after the index, or null if the index or part + * is invalid. + * + * @param part {@link CHARACTER}, {@link WORD}, or {@link SENTENCE} + * @param index the 0-based character index + * @return the selection of text after that index, or null + */ + String getAfterIndex(int part, int index); + + /** + * Returns the section of text before the index, or null if the index or part + * is invalid. + * + * @param part {@link CHARACTER}, {@link WORD}, or {@link SENTENCE} + * @param index the 0-based character index + * @return the selection of text before that index, or null + */ + String getBeforeIndex(int part, int index); + + /** + * Returns the attributes of a character at an index, or null if the index + * is out of bounds. + * + * @param index the 0-based character index + * @return the character's attributes + */ + AttributeSet getCharacterAttribute(int index); + + /** + * Returns the start index of the selection. If there is no selection, this + * is the same as the caret location. + * + * @return the 0-based character index of the selection start + */ + int getSelectionStart(); + + /** + * Returns the end index of the selection. If there is no selection, this + * is the same as the caret location. + * + * @return the 0-based character index of the selection end + */ + int getSelectionEnd(); + + /** + * Returns the selected text. This may be null or "" if no text is selected. + * + * @return the selected text + */ + String getSelectedText(); +} // interface AccessibleText |