org.jpedal.parser.color.G 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@
 *
 * ---------------
 * G.java
 * ---------------
 */
package org.jpedal.parser.color;

import org.jpedal.color.ColorSpaces;
import org.jpedal.color.DeviceGrayColorSpace;
import org.jpedal.objects.GraphicsState;
import org.jpedal.parser.CommandParser;
import org.jpedal.parser.PdfObjectCache;

/**
 *
 */
public class G {

    public static void execute(final boolean isLowerCase, final GraphicsState gs, final CommandParser parser, final PdfObjectCache cache) {

        final boolean isStroke = !isLowerCase;
        final float[] operand = parser.getValuesAsFloat();
        final int operandCount = operand.length;

        //set colour and colorspace
        if (isStroke) {
            if (gs.strokeColorSpace.getID() != ColorSpaces.DeviceGray) {
                gs.strokeColorSpace = new DeviceGrayColorSpace();
            }

            gs.strokeColorSpace.setColor(operand, operandCount);

            //track colrspace use
            cache.put(PdfObjectCache.ColorspacesUsed, gs.strokeColorSpace.getID(), "x");

        } else {
            if (gs.nonstrokeColorSpace.getID() != ColorSpaces.DeviceGray) {
                gs.nonstrokeColorSpace = new DeviceGrayColorSpace();
            }

            gs.nonstrokeColorSpace.setColor(operand, operandCount);

            //track colorspace use
            cache.put(PdfObjectCache.ColorspacesUsed, gs.nonstrokeColorSpace.getID(), "x");

        }
    }

}