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Open Source (LGPL) JavaFX PDF Viewer for NetBeans plugin
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/*
 * ===========================================
 * 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@
 *
 * ---------------
 * ImageData.java
 * ---------------
 */
package org.jpedal.parser.image.data;

import org.jpedal.io.PdfFilteredReader;
import org.jpedal.objects.raw.PdfArrayIterator;
import org.jpedal.objects.raw.PdfDictionary;
import org.jpedal.objects.raw.PdfObject;
import org.jpedal.parser.image.ImageCommands;
import org.jpedal.parser.image.PdfImageTypes;

public class ImageData {

    int pX, pY;

    int width, height, depth = 1, rawDepth = 1;

    boolean imageMask;

    byte[] objectData;

    boolean isDCT, isJPX, isJBIG, wasDCT;
    private int numComponents;

    boolean isDownsampled;

    int mode = ImageCommands.XOBJECT;

    private boolean removed;
    private float[] decodeArray;
    private PdfImageTypes rawType = PdfImageTypes.Other;
    private boolean isConvertedToARGB;

    public ImageData(final byte[] objectData) {
        this.objectData = objectData;
    }

    public ImageData(final PdfObject XObject, final byte[] objectData) {

        this.objectData = objectData;

        width = XObject.getInt(PdfDictionary.Width);
        height = XObject.getInt(PdfDictionary.Height);

        final int newDepth = XObject.getInt(PdfDictionary.BitsPerComponent);
        if (newDepth != PdfDictionary.Unknown) {
            depth = newDepth;
            rawDepth = depth;
        }

        imageMask = XObject.getBoolean(PdfDictionary.ImageMask);

        // decodeArray=XObject.getFloatArray(PdfDictionary.Decode);
    }

    public ImageData(final int mode) {
        this.mode = mode;
    }

    public void setIsDownsampled(final boolean isDownsampled) {
        this.isDownsampled = isDownsampled;
    }

    public boolean isDownsampled() {
        return isDownsampled;
    }

    public int getMode() {
        return mode;
    }

    public int getWidth() {
        return width;
    }

    public int getHeight() {
        return height;
    }

    public int getDepth() {
        return depth;
    }

    public boolean isImageMask() {
        return imageMask;
    }

    public void setDepth(final int depth) {
        this.depth = depth;
    }

    public void setWidth(final int width) {
        this.width = width;
    }

    public void setHeight(final int height) {
        this.height = height;
    }

    public byte[] getObjectData() {
        return objectData;
    }

    /**
     * Get the object data as 8 bit per component
     *
     * @return byte array of the object data with each component value uses 8 bit
     */
    public byte[] getObjectDataAs8Bit() {

        switch (depth) {
            case 1 :
                final int size = objectData.length;
                final byte[] newData = new byte[size * 8];
                int ptr = 0;

                for (int a = 0; a < size; a++) {
                    for (int bit = 7; bit >= 0; bit--) {
                        if (((objectData[a] >> bit) & 1) == 1) {
                            newData[ptr] = (byte) 255;
                        } else {
                            newData[ptr] = (byte) 0;
                        }
                        ptr++;

                        //If at end of width, rest of byte is passing.
                        if (ptr % width == 0) {
                            break;
                        }
                    }
                }
                return newData;
            default :
                return objectData;
        }
    }

    public void setObjectData(final byte[] objectData) {
        this.objectData = objectData;
    }

    public void setpX(final int pX) {
        this.pX = pX;
    }

    public void setpY(final int pY) {
        this.pY = pY;
    }

    public int getpX() {
        return pX;
    }

    public int getpY() {
        return pY;
    }

    public void swapValues() {
        final int temp = pX;
        pX = pY;
        pY = temp;
    }

    public boolean isJPX() {
        return isJPX;
    }

    public void setDCT(final boolean isDCT) {
        this.isDCT = isDCT;
    }

    public boolean isDCT() {
        return isDCT;
    }

    public boolean isJBIG() {
        return isJBIG;
    }

    public PdfArrayIterator getFilter(final PdfObject XObject) {

        PdfArrayIterator Filters = XObject.getMixedArray(PdfDictionary.Filter);

        //check not handled elsewhere
        int firstValue;
        if (Filters != null && Filters.hasMoreTokens()) {
            while (Filters.hasMoreTokens()) {
                firstValue = Filters.getNextValueAsConstant(true);
                isDCT = firstValue == PdfFilteredReader.DCTDecode;
                isJPX = firstValue == PdfFilteredReader.JPXDecode;
                isJBIG = firstValue == PdfFilteredReader.JBIG2Decode;
            }
        } else {
            Filters = null;
        }

        decodeArray = XObject.getFloatArray(PdfDictionary.Decode);

        return Filters;
    }

    public void setCompCount(final int numComponents) {
        this.numComponents = numComponents;
    }

    public int getCompCount() {
        return numComponents;
    }

    /**
     * @return if image was removed
     */
    public boolean isRemoved() {
        return removed;
    }

    /**
     */
    public void setRemoved(final boolean removed) {
        this.removed = removed;
    }

    public int getRawDepth() {
        return rawDepth;
    }

    public void setIsJPX(final boolean b) {
        isJPX = b;
    }

    public void setIsDCT(final boolean b) {
        isDCT = b;
    }

    public boolean wasDCT() {
        return wasDCT;
    }

    public void wasDCT(final boolean b) {
        wasDCT = b;
    }

    public void setDecodeArray(final float[] value) {
        decodeArray = value;
    }

    public float[] getDecodeArray() {
        return decodeArray;
    }

    /**
     * @param rawType
     */
    public void setImageType(final PdfImageTypes rawType) {
        this.rawType = rawType;
    }

    /**
     *
     */
    public PdfImageTypes getImageType() {
        return rawType;
    }

    public void setIsConvertedToARGB(final boolean b) {
        isConvertedToARGB = b;
    }

    public boolean isConvertedToARGB() {
        return isConvertedToARGB;
    }
}