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*
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* 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).
*
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package javax.accessibility;
import java.awt.Rectangle;
/**
* The {@code AccessibleExtendedText} interface contains additional methods not
* provided by the {@code AccessibleText} interface.
* <p>
* Applications can determine if an object supports the
* {@code AccessibleExtendedText} 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 an instance of
* {@code AccessibleExtendedText}, the object supports this interface.
*
* @author Peter Korn
* @author Lynn Monsanto
* @see Accessible
* @see Accessible#getAccessibleContext
* @see AccessibleContext
* @see AccessibleContext#getAccessibleText
* @since 1.5
*/
public interface AccessibleExtendedText {
/**
* Constant used to indicate that the part of the text that should be
* retrieved is a line of text.
*
* @see AccessibleText#getAtIndex
* @see AccessibleText#getAfterIndex
* @see AccessibleText#getBeforeIndex
*/
public static final int LINE = 4; // BugID: 4849720
/**
* Constant used to indicate that the part of the text that should be
* retrieved is contiguous text with the same text attributes.
*
* @see AccessibleText#getAtIndex
* @see AccessibleText#getAfterIndex
* @see AccessibleText#getBeforeIndex
*/
public static final int ATTRIBUTE_RUN = 5; // BugID: 4849720
/**
* Returns the text between two indices.
*
* @param startIndex the start index in the text
* @param endIndex the end index in the text
* @return the text string if the indices are valid. Otherwise, {@code null}
* is returned.
*/
public String getTextRange(int startIndex, int endIndex);
/**
* Returns the {@code AccessibleTextSequence} at a given index.
*
* @param part the {@code CHARACTER}, {@code WORD}, {@code SENTENCE},
* {@code LINE} or {@code ATTRIBUTE_RUN} to retrieve
* @param index an index within the text
* @return an {@code AccessibleTextSequence} specifying the text if
* {@code part} and {@code index} are valid. Otherwise, {@code null}
* is returned.
* @see AccessibleText#CHARACTER
* @see AccessibleText#WORD
* @see AccessibleText#SENTENCE
*/
public AccessibleTextSequence getTextSequenceAt(int part, int index);
/**
* Returns the {@code AccessibleTextSequence} after a given index.
*
* @param part the {@code CHARACTER}, {@code WORD}, {@code SENTENCE},
* {@code LINE} or {@code ATTRIBUTE_RUN} to retrieve
* @param index an index within the text
* @return an {@code AccessibleTextSequence} specifying the text if
* {@code part} and {@code index} are valid. Otherwise, {@code null}
* is returned.
* @see AccessibleText#CHARACTER
* @see AccessibleText#WORD
* @see AccessibleText#SENTENCE
*/
public AccessibleTextSequence getTextSequenceAfter(int part, int index);
/**
* Returns the {@code AccessibleTextSequence} before a given index.
*
* @param part the {@code CHARACTER}, {@code WORD}, {@code SENTENCE},
* {@code LINE} or {@code ATTRIBUTE_RUN} to retrieve
* @param index an index within the text
* @return an {@code AccessibleTextSequence} specifying the text if
* {@code part} and {@code index} are valid. Otherwise, {@code null}
* is returned.
* @see AccessibleText#CHARACTER
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