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Open Source (LGPL) JavaFX PDF Viewer
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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@
 *
 * ---------------
 * MultiDisplayOptions.java
 * ---------------
 */

package org.jpedal.display;

import org.jpedal.objects.PdfPageData;
import org.jpedal.utils.LogWriter;

/**
 * @author markee
 */
public class MultiDisplayOptions {

    private boolean turnoverOn = GUIDisplay.default_turnoverOn;

    private boolean separateCover = GUIDisplay.default_separateCover;

    private int[] xReached, yReached, pageW, pageH;

    private boolean isGeneratingOtherPages;

    private boolean running;

    private int startViewPage = 1, endViewPage;

    private int pageNumber;

    private final PdfPageData pageData = new PdfPageData();

    /**
     * @return the turnoverOn
     */
    public boolean isTurnoverOn() {
        return turnoverOn;
    }

    /**
     * @param turnoverOn the turnoverOn to set
     */
    public void setTurnoverOn(final boolean turnoverOn) {
        this.turnoverOn = turnoverOn;
    }

    /**
     * @return the separateCover
     */
    public boolean isSeparateCover() {
        return separateCover;
    }

    /**
     * @param separateCover the separateCover to set
     */
    public void setSeparateCover(final boolean separateCover) {
        this.separateCover = separateCover;
    }

    void resetValues(final int pageCount) {
        setxReached(new int[pageCount + 1]);
        setyReached(new int[pageCount + 1]);
        setPageW(new int[pageCount + 1]);
        setPageH(new int[pageCount + 1]);
    }

    public void setReachedToNull() {
        setxReached(null);

    }

    public void setPageValuesToNull() {
        setPageH(null);
        setPageW(null);
    }

    /**
     * @return the pageH
     */
    public int[] getPageH() {
        return pageH;
    }

    public int getPageH(final int i) {
        return pageH[i];
    }

    /**
     * @param pageH the pageH to set
     */
    public void setPageH(final int[] pageH) {
        this.pageH = pageH;
    }

    /**
     * @return the pageW
     */
    public int[] getPageW() {
        return pageW;
    }

    public int getPageW(final int i) {
        return pageW[i];
    }

    /**
     * @param pageW the pageW to set
     */
    public void setPageW(final int[] pageW) {
        this.pageW = pageW;
    }

    /**
     * @return the yReached
     */
    public int[] getyReached() {
        return yReached;
    }

    public int getyReached(final int i) {
        return yReached[i];
    }

    /**
     * @param yReached the yReached to set
     */
    public void setyReached(final int[] yReached) {
        this.yReached = yReached;
    }

    /**
     * @return the xReached
     */
    public int[] getxReached() {
        return xReached;
    }

    public int getxReached(final int i) {
        return xReached[i];
    }

    /**
     * @param xReached the xReached to set
     */
    public void setxReached(final int[] xReached) {
        this.xReached = xReached;
    }

    /**
     * @return the isGeneratingOtherPages
     */
    public boolean isIsGeneratingOtherPages() {
        return isGeneratingOtherPages;
    }

    /**
     * @param isGeneratingOtherPages the isGeneratingOtherPages to set
     */
    public void setIsGeneratingOtherPages(final boolean isGeneratingOtherPages) {
        this.isGeneratingOtherPages = isGeneratingOtherPages;
    }

    /**
     * @return the running
     */
    public boolean isRunning() {
        return running;
    }

    /**
     * @param running the running to set
     */
    public void setRunning(final boolean running) {
        this.running = running;
    }

    /**
     * @return the startViewPage
     */
    public int getStartViewPage() {
        return startViewPage;
    }

    /**
     * @param startViewPage the startViewPage to set
     */
    public void setStartViewPage(final int startViewPage) {
        this.startViewPage = startViewPage;
    }

    /**
     * @return the endViewPage
     */
    public int getEndViewPage() {
        return endViewPage;
    }

    /**
     * @param endViewPage the endViewPage to set
     */
    public void setEndViewPage(final int endViewPage) {
        this.endViewPage = endViewPage;
    }

    public void calcDisplayRangeForFacing() {

        final int pageCount = pageData.getPageCount();

        if (separateCover) {
            if (pageCount == 2) { //special case
                startViewPage = 1;
                endViewPage = 2;
            } else {
                startViewPage = pageNumber;

                if (startViewPage == 1) { //special case
                    endViewPage = 1;
                } else if ((startViewPage & 1) != 1) { //right even page selected
                    startViewPage = pageNumber;
                    endViewPage = pageNumber + 1;
                } else { //left odd page selected
                    startViewPage = pageNumber - 1;
                    endViewPage = pageNumber;
                }
            }
        } else {
            startViewPage = pageNumber - (1 - (pageNumber & 1));
            endViewPage = startViewPage + 1;
        }
    }

    /**
     * @return the pageNumber
     */
    public int getPageNumber() {
        return pageNumber;
    }

    /**
     * @param pageNumber the pageNumber to set
     */
    public void setPageNumber(final int pageNumber) {
        this.pageNumber = pageNumber;
    }

    public void waitToDieThred() {
        //wait to die
        while (running) {
            // System.out.println("Waiting to die");
            try {
                Thread.sleep(100);
            } catch (final InterruptedException e) {
                LogWriter.writeLog("Exception: " + e.getMessage());
            }
        }
    }
}