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Java Standard Edition (SE)

TextComponent.AccessibleAWTTextComponent


java.awt

Class TextComponent.AccessibleAWTTextComponent

    • Constructor Detail

      • AccessibleAWTTextComponent

        public AccessibleAWTTextComponent()
        Constructs an AccessibleAWTTextComponent. Adds a listener to track caret change.
    • Method Detail

      • getAccessibleText

        public AccessibleText getAccessibleText()
        Get the AccessibleText associated with this object. In the implementation of the Java Accessibility API for this class, return this object, which is responsible for implementing the AccessibleText interface on behalf of itself.
        Overrides:
        getAccessibleText in class AccessibleContext
        Returns:
        this object
        See Also:
        AccessibleText
      • getIndexAtPoint

        public int getIndexAtPoint(Point p)
        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.
        Specified by:
        getIndexAtPoint in interface AccessibleText
        Parameters:
        p - the Point in local coordinates
        Returns:
        the zero-based index of the character under Point p.
      • getCharacterBounds

        public Rectangle getCharacterBounds(int i)
        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 a null rectangle is returned.
        Specified by:
        getCharacterBounds in interface AccessibleText
        Parameters:
        i - the index into the String >= 0
        Returns:
        the screen coordinates of the character's bounding box
      • getCharCount

        public int getCharCount()
        Returns the number of characters (valid indicies)
        Specified by:
        getCharCount in interface AccessibleText
        Returns:
        the number of characters >= 0
      • getCaretPosition

        public int getCaretPosition()
        Returns the zero-based offset of the caret. Note: The character to the right of the caret will have the same index value as the offset (the caret is between two characters).
        Specified by:
        getCaretPosition in interface AccessibleText
        Returns:
        the zero-based offset of the caret.
      • getCharacterAttribute

        public AttributeSet getCharacterAttribute(int i)
        Returns the AttributeSet for a given character (at a given index).
        Specified by:
        getCharacterAttribute in interface AccessibleText
        Parameters:
        i - the zero-based index into the text
        Returns:
        the AttributeSet of the character
      • getSelectionStart

        public int getSelectionStart()
        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 0 if the text is empty, or the caret position if no selection.
        Specified by:
        getSelectionStart in interface AccessibleText
        Returns:
        the index into the text of the start of the selection >= 0
      • getSelectionEnd

        public int getSelectionEnd()
        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 0 if the text is empty, or the caret position if no selection.
        Specified by:
        getSelectionEnd in interface AccessibleText
        Returns:
        the index into the text of the end of the selection >= 0
      • getSelectedText

        public String getSelectedText()
        Returns the portion of the text that is selected.
        Specified by:
        getSelectedText in interface AccessibleText
        Returns:
        the text, null if no selection
      • getAtIndex

        public String getAtIndex(int part,
                                 int index)
        Returns the String at a given index.
        Specified by:
        getAtIndex in interface AccessibleText
        Parameters:
        part - the AccessibleText.CHARACTER, AccessibleText.WORD, or AccessibleText.SENTENCE to retrieve
        index - an index within the text >= 0
        Returns:
        the letter, word, or sentence, null for an invalid index or part
      • getAfterIndex

        public String getAfterIndex(int part,
                                    int index)
        Returns the String after a given index.
        Specified by:
        getAfterIndex in interface AccessibleText
        Parameters:
        part - the AccessibleText.CHARACTER, AccessibleText.WORD, or AccessibleText.SENTENCE to retrieve
        index - an index within the text >= 0
        Returns:
        the letter, word, or sentence, null for an invalid index or part
      • getBeforeIndex

        public String getBeforeIndex(int part,
                                     int index)
        Returns the String before a given index.
        Specified by:
        getBeforeIndex in interface AccessibleText
        Parameters:
        part - the AccessibleText.CHARACTER, AccessibleText.WORD, or AccessibleText.SENTENCE to retrieve
        index - an index within the text >= 0
        Returns:
        the letter, word, or sentence, null for an invalid index or part


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