/**
* Updates the <code>TextMeasurer</code> after a single character has been deleted from the
* paragraph currently represented by this <code>TextMeasurer</code>. After this call, this <code>
* TextMeasurer</code> is equivalent to a new <code>TextMeasurer</code> created from the text;
* however, it will usually be more efficient to update an existing <code>TextMeasurer</code> than
* to create a new one from scratch.
*
* @param newParagraph the text of the paragraph after performing the deletion. Cannot be null.
* @param deletePos the position in the text where the character was removed. Must not be less
* than the start of <code>newParagraph</code>, and must not be greater than the end of <code>
* newParagraph</code>.
* @throws IndexOutOfBoundsException if <code>deletePos</code> is less than the start of <code>
* newParagraph</code> or greater than the end of <code>newParagraph</code>
* @throws NullPointerException if <code>newParagraph</code> is <code>null</code>
*/
public void deleteChar(AttributedCharacterIterator newParagraph, int deletePos) {
fStart = newParagraph.getBeginIndex();
int end = newParagraph.getEndIndex();
if (end - fStart != fChars.length - 1) {
initAll(newParagraph);
}
char[] newChars = new char[end - fStart];
int changedIndex = deletePos - fStart;
System.arraycopy(fChars, 0, newChars, 0, deletePos - fStart);
System.arraycopy(fChars, changedIndex + 1, newChars, changedIndex, end - deletePos);
fChars = newChars;
if (fBidi != null) {
fBidi = new Bidi(newParagraph);
if (fBidi.isLeftToRight()) {
fBidi = null;
}
}
fParagraph = StyledParagraph.deleteChar(newParagraph, fChars, deletePos, fParagraph);
invalidateComponents();
}
