additions to the event model
git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@352748 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Said Ryan Ackley
parent
622d82a9ec
commit
8c8192f6aa
417
src/scratchpad/src/org/apache/poi/hdf/event/EventBridge.java
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417
src/scratchpad/src/org/apache/poi/hdf/event/EventBridge.java
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package org.apache.poi.hdf.event;
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import org.apache.poi.hdf.model.util.BTreeSet;
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import org.apache.poi.hdf.model.util.NumberFormatter;
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import org.apache.poi.hdf.model.hdftypes.*;
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import org.apache.poi.util.LittleEndian;
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import java.util.ArrayList;
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public class EventBridge implements HDFLowLevelParsingListener
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{
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private static int HEADER_EVEN_INDEX = 0;
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private static int HEADER_ODD_INDEX = 1;
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private static int FOOTER_EVEN_INDEX = 2;
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private static int FOOTER_ODD_INDEX = 3;
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private static int HEADER_FIRST_INDEX = 4;
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private static int FOOTER_FIRST_INDEX = 5;
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/** This class translates low level events into high level events for this
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* listener */
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HDFParsingListener _listener;
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/** stylesheet for this document */
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StyleSheet _stsh;
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/** name says it all */
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DocumentProperties _dop;
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/** StyleDescription for the current paragraph. */
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StyleDescription _currentStd;
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/** List info for this doc */
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ListTables _listTables;
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/** "WordDocument" from the POIFS */
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byte[] _mainDocument;
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/** Table0 or Table1 from POIFS */
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byte[] _tableStream;
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/** text offset in main stream */
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int _fcMin;
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int _ccpText;
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int _ccpFtn;
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int _hdrSize;
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int _hdrOffset;
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/** text pieces */
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BTreeSet _text = new BTreeSet();
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private boolean _beginHeaders;
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BTreeSet _hdrSections = new BTreeSet();
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BTreeSet _hdrParagraphs = new BTreeSet();
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BTreeSet _hdrCharacterRuns = new BTreeSet();
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int _sectionCounter = 1;
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ArrayList _hdrs = new ArrayList();
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private boolean _holdParagraph = false;
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private int _endHoldIndex = -1;
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private ArrayList _onHold;
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public EventBridge(HDFParsingListener listener)
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{
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_listener = listener;
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}
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public void mainDocument(byte[] mainDocument)
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{
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_mainDocument = mainDocument;
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}
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public void tableStream(byte[] tableStream)
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{
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_tableStream = tableStream;
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}
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public void miscellaneous(int fcMin, int ccpText, int ccpFtn, int fcPlcfhdd, int lcbPlcfhdd)
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{
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_fcMin = fcMin;
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_ccpText = ccpText;
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_ccpFtn = ccpFtn;
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_hdrOffset = fcPlcfhdd;
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_hdrSize = lcbPlcfhdd;
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}
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public void document(DocumentProperties dop)
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{
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_dop = dop;
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}
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public void bodySection(SepxNode sepx)
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{
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SectionProperties sep = (SectionProperties)StyleSheet.uncompressProperty(sepx.getSepx(), new SectionProperties(), _stsh);
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HeaderFooter[] hdrArray = findSectionHdrFtrs(_sectionCounter);
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_hdrs.add(hdrArray);
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_listener.section(sep, sepx.getStart() - _fcMin, sepx.getEnd() - _fcMin);
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_sectionCounter++;
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}
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public void hdrSection(SepxNode sepx)
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{
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_beginHeaders = true;
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_hdrSections.add(sepx);
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}
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public void endSections()
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{
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for (int x = 1; x < _sectionCounter; x++)
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{
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HeaderFooter[] hdrArray = (HeaderFooter[])_hdrs.get(x-1);
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HeaderFooter hf = null;
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if (!hdrArray[HeaderFooter.HEADER_EVEN - 1].isEmpty())
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{
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hf = hdrArray[HeaderFooter.HEADER_EVEN - 1];
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_listener.header(x - 1, HeaderFooter.HEADER_EVEN);
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flushHeaderProps(hf.getStart(), hf.getEnd());
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}
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if (!hdrArray[HeaderFooter.HEADER_ODD - 1].isEmpty())
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{
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hf = hdrArray[HeaderFooter.HEADER_ODD - 1];
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_listener.header(x - 1, HeaderFooter.HEADER_ODD);
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flushHeaderProps(hf.getStart(), hf.getEnd());
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}
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if (!hdrArray[HeaderFooter.FOOTER_EVEN - 1].isEmpty())
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{
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hf = hdrArray[HeaderFooter.FOOTER_EVEN - 1];
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_listener.footer(x - 1, HeaderFooter.FOOTER_EVEN);
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flushHeaderProps(hf.getStart(), hf.getEnd());
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}
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if (!hdrArray[HeaderFooter.FOOTER_ODD - 1].isEmpty())
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{
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hf = hdrArray[HeaderFooter.FOOTER_EVEN - 1];
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_listener.footer(x - 1, HeaderFooter.FOOTER_EVEN);
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flushHeaderProps(hf.getStart(), hf.getEnd());
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}
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if (!hdrArray[HeaderFooter.HEADER_FIRST - 1].isEmpty())
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{
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hf = hdrArray[HeaderFooter.HEADER_FIRST - 1];
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_listener.header(x - 1, HeaderFooter.HEADER_FIRST);
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flushHeaderProps(hf.getStart(), hf.getEnd());
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}
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if (!hdrArray[HeaderFooter.FOOTER_FIRST - 1].isEmpty())
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{
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hf = hdrArray[HeaderFooter.FOOTER_FIRST - 1];
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_listener.footer(x - 1, HeaderFooter.FOOTER_FIRST);
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flushHeaderProps(hf.getStart(), hf.getEnd());
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}
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}
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}
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public void paragraph(PapxNode papx)
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{
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if (_beginHeaders)
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{
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_hdrParagraphs.add(papx);
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}
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byte[] bytePapx = papx.getPapx();
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int istd = LittleEndian.getShort(bytePapx, 0);
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_currentStd = _stsh.getStyleDescription(istd);
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ParagraphProperties pap = (ParagraphProperties)StyleSheet.uncompressProperty(bytePapx, _currentStd.getPAP(), _stsh);
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if (pap.getFTtp() > 0)
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{
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TableProperties tap = (TableProperties)StyleSheet.uncompressProperty(bytePapx, new TableProperties(), _stsh);
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_listener.tableRowEnd(tap, papx.getStart() - _fcMin, papx.getEnd() - _fcMin);
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}
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else if (pap.getIlfo() > 0)
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{
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_holdParagraph = true;
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_endHoldIndex = papx.getEnd();
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_onHold.add(papx);
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}
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else
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{
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_listener.paragraph(pap, papx.getStart() - _fcMin, papx.getEnd() - _fcMin);
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}
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}
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public void characterRun(ChpxNode chpx)
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{
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if (_beginHeaders)
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{
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_hdrCharacterRuns.add(chpx);
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}
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int start = chpx.getStart();
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int end = chpx.getEnd();
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//check to see if we should hold this characterRun
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if (_holdParagraph)
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{
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_onHold.add(chpx);
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if (end >= _endHoldIndex)
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{
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_holdParagraph = false;
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_endHoldIndex = -1;
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flushHeldParagraph();
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_onHold = new ArrayList();
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}
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}
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byte[] byteChpx = chpx.getChpx();
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CharacterProperties chp = (CharacterProperties)StyleSheet.uncompressProperty(byteChpx, _currentStd.getCHP(), _stsh);
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ArrayList textList = BTreeSet.findProperties(start, end, _text.root);
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String text = getTextFromNodes(textList, start, end);
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_listener.characterRun(chp, text, start - _fcMin, end - _fcMin);
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}
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public void text(TextPiece t)
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{
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_text.add(t);
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}
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public void fonts(FontTable fontTbl)
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{
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}
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public void lists(ListTables listTbl)
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{
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_listTables = listTbl;
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}
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public void styleSheet(StyleSheet stsh)
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{
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_stsh = stsh;
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}
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private void flushHeaderProps(int start, int end)
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{
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ArrayList list = BTreeSet.findProperties(start, end, _hdrSections.root);
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int size = list.size();
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for (int x = 0; x < size; x++)
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{
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SepxNode oldNode = (SepxNode)list.get(x);
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int secStart = Math.max(oldNode.getStart(), start);
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int secEnd = Math.min(oldNode.getEnd(), end);
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//SepxNode node = new SepxNode(-1, secStart, secEnd, oldNode.getSepx());
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//bodySection(node);
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ArrayList parList = BTreeSet.findProperties(secStart, secEnd, _hdrParagraphs.root);
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int parSize = parList.size();
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for (int y = 0; y < parSize; y++)
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{
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PapxNode oldParNode = (PapxNode)parList.get(y);
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int parStart = Math.max(oldParNode.getStart(), secStart);
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int parEnd = Math.min(oldParNode.getEnd(), secEnd);
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PapxNode parNode = new PapxNode(parStart, parEnd, oldParNode.getPapx());
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paragraph(parNode);
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ArrayList charList = BTreeSet.findProperties(parStart, parEnd, _hdrCharacterRuns.root);
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int charSize = charList.size();
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for (int z = 0; z < charSize; z++)
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{
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ChpxNode oldCharNode = (ChpxNode)charList.get(z);
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int charStart = Math.max(oldCharNode.getStart(), parStart);
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int charEnd = Math.min(oldCharNode.getEnd(), parEnd);
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ChpxNode charNode = new ChpxNode(charStart, charEnd, oldCharNode.getChpx());
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characterRun(charNode);
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}
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}
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}
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}
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private String getTextFromNodes(ArrayList list, int start, int end)
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{
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int size = list.size();
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StringBuffer sb = new StringBuffer();
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for (int x = 0; x < size; x++)
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{
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TextPiece piece = (TextPiece)list.get(x);
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int charStart = Math.max(start, piece.getStart());
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int charEnd = Math.min(end, piece.getEnd());
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if(piece.usesUnicode())
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{
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for (int y = charStart; y < charEnd; y += 2)
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{
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sb.append((char)LittleEndian.getShort(_mainDocument, y));
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}
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}
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else
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{
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for (int y = charStart; y < charEnd; y++)
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{
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sb.append(_mainDocument[y]);
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}
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}
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}
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return sb.toString();
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}
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private void flushHeldParagraph()
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{
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PapxNode papx = (PapxNode)_onHold.get(0);
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byte[] bytePapx = papx.getPapx();
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int istd = LittleEndian.getShort(bytePapx, 0);
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StyleDescription std = _stsh.getStyleDescription(istd);
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ParagraphProperties pap = (ParagraphProperties)StyleSheet.uncompressProperty(bytePapx, _currentStd.getPAP(), _stsh);
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LVL lvl = _listTables.getLevel(pap.getIlfo(), pap.getIlvl());
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pap = (ParagraphProperties)StyleSheet.uncompressProperty(lvl._papx, pap, _stsh, false);
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int size = _onHold.size() - 1;
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CharacterProperties numChp = (CharacterProperties)StyleSheet.uncompressProperty(((ChpxNode)_onHold.get(size)).getChpx(), std.getCHP(), _stsh);
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numChp = (CharacterProperties)StyleSheet.uncompressProperty(lvl._chpx, numChp, _stsh);
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String bulletText = getBulletText(lvl, pap);
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_listener.listEntry(bulletText, numChp, pap, papx.getStart() - _fcMin, papx.getEnd() - _fcMin);
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for (int x = 1; x <= size; x++)
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{
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characterRun((ChpxNode)_onHold.get(x));
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}
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}
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private String getBulletText(LVL lvl, ParagraphProperties pap)
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{
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StringBuffer bulletBuffer = new StringBuffer();
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for(int x = 0; x < lvl._xst.length; x++)
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{
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if(lvl._xst[x] < 9)
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{
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LVL numLevel = _listTables.getLevel(pap.getIlfo(), lvl._xst[x]);
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int num = numLevel._iStartAt;
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if(lvl == numLevel)
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{
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numLevel._iStartAt++;
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}
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else if(num > 1)
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{
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num--;
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}
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bulletBuffer.append(NumberFormatter.getNumber(num, lvl._nfc));
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}
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else
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{
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bulletBuffer.append(lvl._xst[x]);
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}
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}
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switch (lvl._ixchFollow)
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{
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case 0:
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bulletBuffer.append('\u0009');
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break;
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case 1:
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bulletBuffer.append(' ');
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break;
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}
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return bulletBuffer.toString();
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}
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private HeaderFooter[] findSectionHdrFtrs(int index)
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{
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HeaderFooter[] hdrArray = new HeaderFooter[6];
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for (int x = 1; x < 7; x++)
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{
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hdrArray[x-1] = createSectionHdrFtr(index, x);
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}
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return hdrArray;
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}
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private HeaderFooter createSectionHdrFtr(int index, int type)
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{
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if(_hdrSize < 50)
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{
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return new HeaderFooter(0,0,0);
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}
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int start = _fcMin + _ccpText + _ccpFtn;
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int end = start;
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int arrayIndex = 0;
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switch(type)
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{
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case HeaderFooter.HEADER_EVEN:
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arrayIndex = (HEADER_EVEN_INDEX + (index * 6));
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break;
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case HeaderFooter.FOOTER_EVEN:
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arrayIndex = (FOOTER_EVEN_INDEX + (index * 6));
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break;
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case HeaderFooter.HEADER_ODD:
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arrayIndex = (HEADER_ODD_INDEX + (index * 6));
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break;
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case HeaderFooter.FOOTER_ODD:
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arrayIndex = (FOOTER_ODD_INDEX + (index * 6));
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break;
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case HeaderFooter.HEADER_FIRST:
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arrayIndex = (HEADER_FIRST_INDEX + (index * 6));
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break;
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case HeaderFooter.FOOTER_FIRST:
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arrayIndex = (FOOTER_FIRST_INDEX + (index * 6));
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break;
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}
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start += LittleEndian.getInt(_tableStream, _hdrOffset + (arrayIndex * 4));
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end += LittleEndian.getInt(_tableStream, _hdrOffset + (arrayIndex + 1) * 4);
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HeaderFooter retValue = new HeaderFooter(type, start, end);
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if((end - start) == 0 && index > 1)
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{
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retValue = createSectionHdrFtr(type, index - 1);
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}
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return retValue;
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}
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}
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@ -0,0 +1,20 @@
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package org.apache.poi.hdf.event;
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import org.apache.poi.hdf.model.hdftypes.SectionProperties;
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import org.apache.poi.hdf.model.hdftypes.CharacterProperties;
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import org.apache.poi.hdf.model.hdftypes.ParagraphProperties;
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import org.apache.poi.hdf.model.hdftypes.TableProperties;
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import org.apache.poi.hdf.model.hdftypes.DocumentProperties;
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public interface HDFParsingListener
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{
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public void document(DocumentProperties dop);
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public void section(SectionProperties sep, int start, int end);
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public void paragraph(ParagraphProperties pap, int start, int end);
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public void listEntry(String bulletText, CharacterProperties bulletProperties, ParagraphProperties pap, int start, int end);
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public void paragraphInTableRow(ParagraphProperties pap, int start, int end);
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public void characterRun(CharacterProperties chp, String text, int start, int end);
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public void tableRowEnd(TableProperties tap, int start, int end);
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public void header(int sectionIndex, int type);
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public void footer(int sectionIndex, int type);
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}
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