Examples of org.apache.poi.hwpf.model.PicturesTable

org.apache.poi.hwpf.model.PicturesTable
Holds information about all pictures embedded in Word Document either via "Insert -> Picture -> From File" or via clipboard. Responsible for images extraction and determining whether some document�s piece contains embedded image. Analyzes raw data bytestream �Data� (where Word stores all embedded objects) provided by HWPFDocument. Word stores images as is within so called "Data stream" - the stream within a Word docfile containing various data that hang off of characters in the main stream. For example, binary data describing in-line pictures and/or formfields an also embedded objects-native data. Word picture structures are concatenated one after the other in the data stream if the document contains pictures. Data stream is easily reachable via HWPFDocument._dataStream property. A picture is represented in the document text stream as a special character, an Unicode \u0001 whose CharacterRun.isSpecial() returns true. The file location of the picture in the Word binary file is accessed via CharacterRun.getPicOffset(). The CharacterRun.getPicOffset() is a byte offset into the data stream. Beginning at the position recorded in picOffset, a header data structure, will be stored. @author Dmitry Romanov

    HWPFDocument docB = new HWPFDocument(new FileInputStream(docBFile));
    
    assertNotNull(docA.getPicturesTable());
    assertNotNull(docB.getPicturesTable());
    
    PicturesTable picA = docA.getPicturesTable();
    PicturesTable picB = docB.getPicturesTable();
    
    List picturesA = picA.getAllPictures();
    List picturesB = picB.getAllPictures();
    
    assertEquals(7, picturesA.size());
    assertEquals(2, picturesB.size());
  }

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  /**
   * Test that we have the right images in at least one file
   */
  public void testImageData() throws Exception {
    HWPFDocument docB = new HWPFDocument(new FileInputStream(docBFile));
    PicturesTable picB = docB.getPicturesTable();
    List picturesB = picB.getAllPictures();
    
    assertEquals(2, picturesB.size());
    
    Picture pic1 = (Picture)picturesB.get(0);
    Picture pic2 = (Picture)picturesB.get(1);

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  /**
   * Test that compressed image data is correctly returned.
   */
  public void testCompressedImageData() throws Exception {
    HWPFDocument docC = new HWPFDocument(new FileInputStream(docCFile));
    PicturesTable picC = docC.getPicturesTable();
    List picturesC = picC.getAllPictures();
    
    assertEquals(1, picturesC.size());
    
    Picture pic = (Picture)picturesC.get(0);
    assertNotNull(pic);

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        HeaderStories headerFooter = new HeaderStories(document);


        // Grab the list of pictures. As far as we can tell,
        //  the pictures should be in order, and may be directly
        //  placed or referenced from an anchor
        PicturesTable pictureTable = document.getPicturesTable();
        PicturesSource pictures = new PicturesSource(document);


        // Do any headers, if present
        Range[] headers = new Range[] { headerFooter.getFirstHeaderSubrange(),
                headerFooter.getEvenHeaderSubrange(), headerFooter.getOddHeaderSubrange() };

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    HWPFDocument docB = new HWPFDocument(new FileInputStream(docBFile));


    assertNotNull(docA.getPicturesTable());
    assertNotNull(docB.getPicturesTable());


    PicturesTable picA = docA.getPicturesTable();
    PicturesTable picB = docB.getPicturesTable();


    List picturesA = picA.getAllPictures();
    List picturesB = picB.getAllPictures();


    assertEquals(7, picturesA.size());
    assertEquals(2, picturesB.size());
  }

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  /**
   * Test that we have the right images in at least one file
   */
  public void testImageData() throws Exception {
    HWPFDocument docB = new HWPFDocument(new FileInputStream(docBFile));
    PicturesTable picB = docB.getPicturesTable();
    List picturesB = picB.getAllPictures();


    assertEquals(2, picturesB.size());


    Picture pic1 = (Picture)picturesB.get(0);
    Picture pic2 = (Picture)picturesB.get(1);

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  /**
   * Test that compressed image data is correctly returned.
   */
  public void testCompressedImageData() throws Exception {
    HWPFDocument docC = new HWPFDocument(new FileInputStream(docCFile));
    PicturesTable picC = docC.getPicturesTable();
    List picturesC = picC.getAllPictures();


    assertEquals(1, picturesC.size());


    Picture pic = (Picture)picturesC.get(0);
    assertNotNull(pic);

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    {
        _dgg = new EscherRecordHolder();
    }


    // read in the pictures stream
    _pictures = new PicturesTable(this, _dataStream, _mainStream, _fspa, _dgg);
    // And the art shapes stream
    _officeArts = new ShapesTable(_tableStream, _fib);


    _st = new SectionTable(_mainStream, _tableStream, _fib.getFcPlcfsed(), _fib.getLcbPlcfsed(), fcMin, _tpt, _cpSplit);
    _ss = new StyleSheet(_tableStream, _fib.getFcStshf());

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    {
        _escherRecordHolder = new EscherRecordHolder();
    }


    // read in the pictures stream
    _pictures = new PicturesTable(this, _dataStream, _mainStream, _fspaMain, _escherRecordHolder);
    // And the art shapes stream
    _officeArts = new ShapesTable(_tableStream, _fib);


    // And escher pictures
    _officeDrawingsHeaders = new OfficeDrawingsImpl( _fspaHeaders, _escherRecordHolder, _mainStream );

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       //   file and an embeded word file, in that order
       HWPFDocument doc = HWPFTestDataSamples.openSampleFile("word_with_embeded.doc");
       
       // Check we don't break loading the pictures
       doc.getPicturesTable().getAllPictures();
       PicturesTable pictureTable = doc.getPicturesTable();
       
       // Check the text, and its embeded images
       Paragraph p;
       Range r = doc.getRange();
       assertEquals(1, r.numSections());
       assertEquals(5, r.numParagraphs());
       
       p = r.getParagraph(0);
       assertEquals(2, p.numCharacterRuns());
       assertEquals("I have lots of embedded files in me\r", p.text());
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(0)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(1)));
       
       p = r.getParagraph(1);
       assertEquals(5, p.numCharacterRuns());
       assertEquals("\u0013 EMBED Excel.Sheet.8  \u0014\u0001\u0015\r", p.text());
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(0)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(1)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(2)));
       assertEquals(true,  pictureTable.hasPicture(p.getCharacterRun(3)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(4)));
       
       p = r.getParagraph(2);
       assertEquals(6, p.numCharacterRuns());
       assertEquals("\u0013 EMBED Excel.Sheet.8  \u0014\u0001\u0015\r", p.text());
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(0)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(1)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(2)));
       assertEquals(true,  pictureTable.hasPicture(p.getCharacterRun(3)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(4)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(5)));
       
       p = r.getParagraph(3);
       assertEquals(6, p.numCharacterRuns());
       assertEquals("\u0013 EMBED PowerPoint.Show.8  \u0014\u0001\u0015\r", p.text());
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(0)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(1)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(2)));
       assertEquals(true,  pictureTable.hasPicture(p.getCharacterRun(3)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(4)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(5)));
       
       p = r.getParagraph(4);
       assertEquals(6, p.numCharacterRuns());
       assertEquals("\u0013 EMBED Word.Document.8 \\s \u0014\u0001\u0015\r", p.text());
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(0)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(1)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(2)));
       assertEquals(true,  pictureTable.hasPicture(p.getCharacterRun(3)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(4)));
       assertEquals(false, pictureTable.hasPicture(p.getCharacterRun(5)));


       // Look at the pictures table
       List<Picture> pictures = pictureTable.getAllPictures();
       assertEquals(4, pictures.size());


        Picture picture = pictures.get( 0 );
        assertEquals( "emf", picture.suggestFileExtension() );
        assertEquals( "0.emf", picture.suggestFullFileName() );

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org.apache.poi.ddf.DefaultEscherRecordFactory

org.apache.poi.ddf.EscherBlipRecord

org.apache.poi.ddf.EscherBSERecord

org.apache.poi.ddf.EscherRecord

org.apache.poi.ddf.EscherRecordFactory

org.apache.poi.hwpf.HWPFDocument

org.apache.poi.hwpf.TestHWPFPictures

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org.apache.poi.hwpf.usermodel.Picture

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