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Alpheus AFP Parser is a library and parser for the IBM Advanced Function Presentation (AFP) document/print stream format. Alpheus covers all AFP specifications: MO:DCA, BCOCA, CMOCA, FOCA, GOCA, IOCA, and PTOCA. It is a complete implementation. Every Structured Field, Repeating Group, and Triplet is fully implemented as Java class. Alpheus AFP Parser was written from scratch and has no external dependencies. Copyright 2015,2016 Rudolf Fiala Alpheus AFP Parser is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

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/*
Copyright 2015 Rudolf Fiala

This file is part of Alpheus AFP Parser.

Alpheus AFP Parser is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Alpheus AFP Parser is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Alpheus AFP Parser.  If not, see 
*/
package com.mgz.afp.foca;

import com.mgz.afp.base.StructuredField;
import com.mgz.afp.base.annotations.AFPField;
import com.mgz.afp.exceptions.AFPParserException;
import com.mgz.afp.exceptions.IAFPDecodeableWriteable;
import com.mgz.afp.parser.AFPParserConfiguration;
import com.mgz.util.UtilBinaryDecoding;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

public class FNP_FontPosition extends StructuredField {
  @AFPField
  List repeatingGroups;

  @Override
  public void decodeAFP(byte[] sfData, int offset, int length, AFPParserConfiguration config) throws AFPParserException {
    int actualLength = length != -1 ? length : sfData.length - offset;

    repeatingGroups = new ArrayList();

    int pos = 0;
    while (pos < actualLength) {
      FNP_RepeatingGroup rg = new FNP_RepeatingGroup();
      rg.decodeAFP(sfData, offset + pos, FNC_FontControl.FNPRepeatingGroupLength, config);
      repeatingGroups.add(rg);
      pos += FNC_FontControl.FNPRepeatingGroupLength;
    }

  }

  @Override
  public void writeAFP(OutputStream os, AFPParserConfiguration config) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream(repeatingGroups.size() * FNC_FontControl.FNPRepeatingGroupLength);

    for (FNP_RepeatingGroup rg : repeatingGroups) {
      rg.writeAFP(baos, config);
    }

    writeFullStructuredField(os, baos.toByteArray());
  }

  public List getRepeatingGroups() {
    return repeatingGroups;
  }

  public void setRepeatingGroups(List repeatingGroups) {
    this.repeatingGroups = repeatingGroups;
  }

  public void addFNPRepeatingGroup(FNP_RepeatingGroup rg) {
    if (rg == null) {
      return;
    }
    if (this.repeatingGroups == null) {
      this.repeatingGroups = new ArrayList();
    }
    repeatingGroups.add(rg);
  }

  public void removeRepeatingGroup(FNP_RepeatingGroup rg) {
    if (this.repeatingGroups == null) {
      return;
    }
    this.repeatingGroups.remove(rg);
  }

  public static class FNP_RepeatingGroup implements IAFPDecodeableWriteable {
    @AFPField(size = 2)
    byte[] reserved0_1 = new byte[] {0x00, 0x00};
    @AFPField
    short lowercaseHeight;
    @AFPField
    short capMHeight;
    @AFPField
    short maxAscenderHeight;
    @AFPField
    short maxDescenderDepth;
    @AFPField(size = 5)
    byte[] reserved10_14 = new byte[] {0x00, 0x00, 0x00, 0x00, 0x00};
    @AFPField
    short retired15 = 0x01;
    @AFPField
    short reserved16 = 0x00;
    @AFPField
    short underscoreWidth_Units;
    @AFPField
    short underscoreWidthFraction = 0x00;
    @AFPField
    short underscorePosition;

    @Override
    public void decodeAFP(byte[] sfData, int offset, int length, AFPParserConfiguration config) throws AFPParserException {
      checkDataLength(sfData, offset, length, FNC_FontControl.FNPRepeatingGroupLength);
      reserved0_1 = new byte[2];
      System.arraycopy(sfData, offset, reserved0_1, 0, reserved0_1.length);
      lowercaseHeight = UtilBinaryDecoding.parseShort(sfData, offset + 2, 2);
      capMHeight = UtilBinaryDecoding.parseShort(sfData, offset + 4, 2);
      maxAscenderHeight = UtilBinaryDecoding.parseShort(sfData, offset + 6, 2);
      maxDescenderDepth = UtilBinaryDecoding.parseShort(sfData, offset + 8, 2);
      reserved10_14 = new byte[5];
      System.arraycopy(sfData, offset + 10, reserved10_14, 0, reserved10_14.length);
      retired15 = UtilBinaryDecoding.parseShort(sfData, offset + 15, 1);
      reserved16 = UtilBinaryDecoding.parseShort(sfData, offset + 16, 1);
      underscoreWidth_Units = UtilBinaryDecoding.parseShort(sfData, offset + 17, 2);
      underscoreWidthFraction = UtilBinaryDecoding.parseShort(sfData, offset + 19, 1);
      underscorePosition = UtilBinaryDecoding.parseShort(sfData, offset + 20, 2);
    }

    @Override
    public void writeAFP(OutputStream os, AFPParserConfiguration config) throws IOException {
      os.write(reserved0_1);
      os.write(UtilBinaryDecoding.shortToByteArray(lowercaseHeight, 2));
      os.write(UtilBinaryDecoding.shortToByteArray(capMHeight, 2));
      os.write(UtilBinaryDecoding.shortToByteArray(maxAscenderHeight, 2));
      os.write(UtilBinaryDecoding.shortToByteArray(maxDescenderDepth, 2));
      os.write(reserved10_14);
      os.write(retired15);
      os.write(reserved16);
      os.write(UtilBinaryDecoding.shortToByteArray(underscoreWidth_Units, 2));
      os.write(underscoreWidthFraction);
      os.write(UtilBinaryDecoding.shortToByteArray(underscorePosition, 2));
    }

    public byte[] getReserved0_1() {
      return reserved0_1;
    }

    public void setReserved0_1(byte[] reserved0_1) {
      this.reserved0_1 = reserved0_1;
    }

    public short getLowercaseHeight() {
      return lowercaseHeight;
    }

    public void setLowercaseHeight(short lowercaseHeight) {
      this.lowercaseHeight = lowercaseHeight;
    }

    public short getCapMHeight() {
      return capMHeight;
    }

    public void setCapMHeight(short capMHeight) {
      this.capMHeight = capMHeight;
    }

    public short getMaxAscenderHeight() {
      return maxAscenderHeight;
    }

    public void setMaxAscenderHeight(short maxAscenderHeight) {
      this.maxAscenderHeight = maxAscenderHeight;
    }

    public short getMaxDescenderDepth() {
      return maxDescenderDepth;
    }

    public void setMaxDescenderDepth(short maxDescenderDepth) {
      this.maxDescenderDepth = maxDescenderDepth;
    }

    public byte[] getReserved10_14() {
      return reserved10_14;
    }

    public void setReserved10_14(byte[] reserved10_14) {
      this.reserved10_14 = reserved10_14;
    }

    public short getRetired15() {
      return retired15;
    }

    public void setRetired15(short retired15) {
      this.retired15 = retired15;
    }

    public short getReserved16() {
      return reserved16;
    }

    public void setReserved16(short reserved16) {
      this.reserved16 = reserved16;
    }

    public short getUnderscoreWidth_Units() {
      return underscoreWidth_Units;
    }

    public void setUnderscoreWidth_Units(short underscoreWidth_Units) {
      this.underscoreWidth_Units = underscoreWidth_Units;
    }

    public short getUnderscoreWidthFraction() {
      return underscoreWidthFraction;
    }

    public void setUnderscoreWidthFraction(short underscoreWidthFraction) {
      this.underscoreWidthFraction = underscoreWidthFraction;
    }

    public short getUnderscorePosition() {
      return underscorePosition;
    }

    public void setUnderscorePosition(short underscorePosition) {
      this.underscorePosition = underscorePosition;
    }

  }
}




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