org.jpedal.io.types.FloatValue Maven / Gradle / Ivy
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2017 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
@LICENSE@
*
* ---------------
* FloatValue.java
* ---------------
*/
package org.jpedal.io.types;
import static org.jpedal.io.ObjectDecoder.debugFastCode;
import static org.jpedal.io.ObjectDecoder.padding;
import org.jpedal.io.PdfFileReader;
import org.jpedal.objects.raw.PdfObject;
import org.jpedal.utils.NumberUtils;
/**
*
*/
public class FloatValue {
public static int setFloatValue(final PdfObject pdfObject, int i, final byte[] raw, final int PDFkeyInt, final PdfFileReader objectReader) {
//roll on
i++;
i = StreamReaderUtils.skipSpacesOrOtherCharacter(raw, i, 47);
int keyStart = i;
i = StreamReaderUtils.skipToEndOfRef(raw, i);
//actual value or first part of ref
float number = NumberUtils.parseFloat(keyStart, i, raw);
//roll onto next nonspace char and see if number
int jj = i;
jj = StreamReaderUtils.skipSpaces(raw, jj);
//check its not a ref (assumes it XX 0 R)
if (raw[jj] >= 48 && raw[jj] <= 57) { //if next char is number 0-9 its a ref
//move cursor to start of generation
while (raw[i] == 10 || raw[i] == 13 || raw[i] == 32 || raw[i] == 47 || raw[i] == 60) {
i++;
}
/*
* get generation number
*/
keyStart = i;
//move cursor to end of reference
i = StreamReaderUtils.skipToEndOfRef(raw, i);
final int generation = NumberUtils.parseInt(keyStart, i, raw);
//move cursor to start of R
while (raw[i] == 10 || raw[i] == 13 || raw[i] == 32 || raw[i] == 47 || raw[i] == 60) {
i++;
}
if (raw[i] != 82) { //we are expecting R to end ref
throw new RuntimeException("3. Unexpected value in file - please send to IDRsolutions for analysis");
}
//read the Dictionary data
final byte[] data = objectReader.readObjectAsByteArray(pdfObject, objectReader.isCompressed((int) number, generation), (int) number, generation);
//allow for data in Linear object not yet loaded
if (data == null) {
pdfObject.setFullyResolved(false);
if (debugFastCode) {
System.out.println(padding + "Data not yet loaded");
}
return raw.length;
}
//lose obj at start
int j = 3;
while (data[j - 1] != 106 && data[j - 2] != 98 && data[j - 3] != 111) {
j++;
}
j = StreamReaderUtils.skipSpaces(data, j);
int count = j;
//skip any spaces at end
while (data[count] != 10 && data[count] != 13 && data[count] != 32) { // || data[j]==47 || data[j]==60)
count++;
}
number = NumberUtils.parseFloat(j, count, data);
}
//store value
pdfObject.setFloatNumber(PDFkeyInt, number);
if (debugFastCode) {
System.out.println(padding + "set key in numberValue=" + number); //+" in "+pdfObject);
}
i--; // move back so loop works
return i;
}
}