com.idrsolutions.pdf.color.shading.ShadingFactory 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
*
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
*
* ---------------
* ShadingFactory.java
* ---------------
*/
package com.idrsolutions.pdf.color.shading;
import org.jpedal.function.PDFFunction;
/**
* provides factory method to decode
* shading into required value
*/
public class ShadingFactory {
public static float[] applyFunctions(final PDFFunction[] function, final float[] values) {
final int functionLength = function.length;
final float[] colValues;
if (functionLength == 1) {
colValues = function[0].compute(values);
} else {
final Object[] multiValues = new Object[functionLength];
int count = 0;
for (int f = 0; f < functionLength; f++) {
final float[] returnVal = function[f].compute(values);
count += returnVal.length;
multiValues[f] = returnVal;
}
colValues = new float[count];
int ptr = 0;
for (int f = 0; f < functionLength; f++) {
final float[] returnVal = (float[]) multiValues[f];
for (final float aReturnVal : returnVal) {
colValues[ptr] = aReturnVal;
ptr++;
}
}
}
return colValues;
}
}