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An Open Source JavaFX PDF Viewer
/*
* ===========================================
* 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
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* 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;
}
}