/*
* (C) Copyright IBM Corp. 1998-2004. All Rights Reserved.
*
* The program is provided "as is" without any warranty express or
* implied, including the warranty of non-infringement and the implied
* warranties of merchantibility and fitness for a particular purpose.
* IBM will not be liable for any damages suffered by you as a result
* of using the Program. In no event will IBM be liable for any
* special, indirect or consequential damages or lost profits even if
* IBM has been advised of the possibility of their occurrence. IBM
* will not be liable for any third party claims against you.
*/
package com.ibm.richtext.styledtext;
import com.ibm.richtext.textlayout.attributes.AttributeMap;
abstract class MParagraphBuffer
{
static final String COPYRIGHT =
"(C) Copyright IBM Corp. 1998-1999 - All Rights Reserved";
/**
* Returns the start of the paragraph containing offset <tt>pos</tt>.
*/
abstract int paragraphStart(int pos);
/**
* Returns the limit of the paragraph containing offset <tt>pos</tt>.
*/
abstract int paragraphLimit(int pos);
/**
* Returns the style of the paragraph containing offset <tt>pos</tt>.
*/
abstract AttributeMap paragraphStyleAt(int offset);
/**
* Process a character insertion at offset <tt>start</tt>.
* If a paragraph break was inserted, propogate paragraph style at
* <tt>start</tt> to new paragraph.
*/
abstract void insertText(int start, char insertedChar);
/**
* Process character insertion at offset <tt>start</tt>.
* Each new paragraph gets paragraph style at
* <tt>start</tt>.
*/
abstract void insertText(int start,
char[] srcChars,
int srcStart,
int srcLimit);
/**
* Process deletion by removing paragraph breaks contained in
* deleted range. Propogate paragraph styles backward, if necessary.
*/
abstract void deleteText(int start,
int limit,
int[] damagedRange);
/*
* Replace paragraph breaks/styles between start and limit with paragraph breaks/styles
* from <tt>srcText</tt>.
* @param start an offset into the text
* @param limit the index after the last character to replace
* @param srcText the text from which new paragraphs are taken
* @param srcStart the start of the range in <code>srcText</code> to copy
* @param srcLimit the first index after the range in <code>srcText</code> to copy
*/
abstract void replace(int start,
int limit,
MConstText srcText,
int srcStart,
int srcLimit,
int[] damagedRange);
/**
* Set the style of all paragraphs containing offsets in the range [start, limit) to
* <tt>style</tt>.
*/
abstract boolean modifyParagraphStyles(int start,
int limit,
StyleModifier modifier,
int[] damagedRange);
/**
* Minimize the amount of memory used by this object.
*/
abstract void compress();
}
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