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CHPFormattedDiskPage.javaAPI DocApache Poi 3.0.12857Mon Jan 01 18:55:22 GMT 2007org.apache.poi.hdf.model.hdftypes

CHPFormattedDiskPage

public class CHPFormattedDiskPage extends FormattedDiskPage
Represents a CHP fkp. The style properties for paragraph and character runs are stored in fkps. There are PAP fkps for paragraph properties and CHP fkps for character run properties. The first part of the fkp for both CHP and PAP fkps consists of an array of 4 byte int offsets that represent a Paragraph's or Character run's text offset in the main stream. The ending offset is the next value in the array. For example, if an fkp has X number of Paragraph's stored in it then there are (x + 1) 4 byte ints in the beginning array. The number X is determined by the last byte in a 512 byte fkp. CHP and PAP fkps also store the compressed styles(grpprl) that correspond to the offsets on the front of the fkp. The offset of the grpprls is determined differently for CHP fkps and PAP fkps.
author
Ryan Ackley

Fields Summary
Constructors Summary
public CHPFormattedDiskPage(byte[] fkp)
This constructs a CHPFormattedDiskPage from a raw fkp (512 byte array read from a Word file).

param
fkp The 512 byte array to read data from

        super(fkp);
Methods Summary
public byte[]getGrpprl(int index)
Gets the chpx for the character run at index in this fkp.

param
index The index of the chpx to get.
return
a chpx grpprl.

        int chpxOffset = 2 * LittleEndian.getUnsignedByte(_fkp, ((_crun + 1) * 4) + index);

        //optimization if offset == 0 use "Normal" style
        if(chpxOffset == 0)
        {
            return new byte[0];

        }

        int size = LittleEndian.getUnsignedByte(_fkp, chpxOffset);

        byte[] chpx = new byte[size];

        System.arraycopy(_fkp, ++chpxOffset, chpx, 0, size);
        return chpx;