org.icepdf.core.util.content
Class OContentParser

java.lang.Object
  org.icepdf.core.util.content.AbstractContentParser
      org.icepdf.core.util.content.OContentParser

All Implemented Interfaces:

ContentParser

public class OContentParser
extends AbstractContentParser

The ContentParser is responsible for parsing a page's content streams. The parsed text, image and other PDF object types are added the pages Shapes object for later drawing and display.

Field Summary

Fields inherited from class org.icepdf.core.util.content.AbstractContentParser

geometricPath, glyph2UserSpaceScale, graphicState, inTextBlock, library, oCGs, OVERPAINT_ALPHA, resources, shapes, stack, textBlockBase

Constructor Summary

OContentParser(Library l, Resources r)

Method Summary

ContentParser	parse(byte[][] streamBytes) Parse a pages content stream.
Shapes	parseTextBlocks(byte[][] source) Specialized method for extracting text from documents.

Methods inherited from class org.icepdf.core.util.content.AbstractContentParser

applyTextScaling, commonFill, commonOverPrintAlpha, commonStroke, consume_b_star, consume_B_star, consume_b, consume_B, consume_BDC, consume_BMC, consume_c, consume_cm, consume_cs, consume_CS, consume_d, consume_d0, consume_d1, consume_Do, consume_double_quote, consume_DP, consume_EMC, consume_f_star, consume_f, consume_F, consume_g, consume_G, consume_gs, consume_h, consume_i, consume_j, consume_J, consume_k, consume_K, consume_L, consume_M, consume_m, consume_MP, consume_n, consume_q, consume_Q, consume_re, consume_rg, consume_RG, consume_ri, consume_s, consume_S, consume_sc, consume_SC, consume_sh, consume_single_quote, consume_T_star, consume_Tc, consume_Td, consume_TD, consume_Tf, consume_Tj, consume_TJ, consume_TL, consume_tm, consume_Tr, consume_Ts, consume_Tw, consume_Tz, consume_v, consume_W_star, consume_W, consume_w, consume_y, drawModeFill, drawModeFillStroke, drawModeStroke, drawString, getGraphicsState, getShapes, getStack, setAlpha, setGlyph2UserSpaceScale, setGraphicsState, setStroke

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OContentParser

public OContentParser(Library l,
                      Resources r)

Parameters:

l - PDF library master object.

r - resources

Method Detail

parse

public ContentParser parse(byte[][] streamBytes)
                    throws java.lang.InterruptedException,
                           java.io.IOException

Parse a pages content stream.

Specified by:

parse in interface ContentParser

Specified by:

parse in class AbstractContentParser

Parameters:

streamBytes - byte stream containing page content

Returns:

a Shapes Object containing all the pages text and images shapes.

Throws:

java.lang.InterruptedException - if current parse thread is interrupted.

java.io.IOException - unexpected end of content stream.

parseTextBlocks

public Shapes parseTextBlocks(byte[][] source)
                       throws java.io.UnsupportedEncodingException

Specialized method for extracting text from documents.

Specified by:

parseTextBlocks in interface ContentParser

Specified by:

parseTextBlocks in class AbstractContentParser

Parameters:

source - content stream source.

Returns:

vector where each entry is the text extracted from a text block.

Throws:

java.io.UnsupportedEncodingException - encoding error.