Class CoverpageBookProcessor

java.lang.Object

nl.siegmann.epublib.bookprocessor.CoverpageBookProcessor

All Implemented Interfaces:

BookProcessor

public class CoverpageBookProcessor
extends Object
implements BookProcessor

If the book contains a cover image then this will add a cover page to the book. If the book contains a cover html page it will set that page's first image as the book's cover image. FIXME: will overwrite any "cover.jpg" or "cover.html" that are already there.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_COVER_IMAGE_HREF
static final String	DEFAULT_COVER_IMAGE_ID
static final String	DEFAULT_COVER_PAGE_HREF
static final String	DEFAULT_COVER_PAGE_ID
private static final org.slf4j.Logger	log
static int	MAX_COVER_IMAGE_SIZE

Fields inherited from interface BookProcessor

IDENTITY_BOOKPROCESSOR

Constructor Summary

Constructors

Constructor	Description
CoverpageBookProcessor()

Method Summary

Modifier and Type	Method	Description
(package private) static String	calculateAbsoluteImageHref(String relativeImageHref, String baseHref)
private Dimension	calculateResizeSize(BufferedImage image)
private String	createCoverpageHtml(String title, String imageHref)
private BufferedImage	createResizedCopy(Image originalImage, int scaledWidth, int scaledHeight, boolean preserveAlpha)
private byte[]	createThumbnail(byte[] imageData)
private Resource	findCoverPage(Book book)
private void	fixCoverResourceId(Book book, Resource resource, String defaultId)
private String	getCoverImageHref(Resource imageResource, Book book)
private String	getCoverPageHref(Book book)
private Resource	getFirstImageSource(Resource titlePageResource, Resources resources)
Book	processBook(Book book)
private void	setCoverResourceIds(Book book)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

MAX_COVER_IMAGE_SIZE

public static int MAX_COVER_IMAGE_SIZE

log

private static final org.slf4j.Logger log

DEFAULT_COVER_PAGE_ID

public static final String DEFAULT_COVER_PAGE_ID

See Also:

• Constant Field Values

DEFAULT_COVER_PAGE_HREF

public static final String DEFAULT_COVER_PAGE_HREF

See Also:

• Constant Field Values

DEFAULT_COVER_IMAGE_ID

public static final String DEFAULT_COVER_IMAGE_ID

See Also:

• Constant Field Values

DEFAULT_COVER_IMAGE_HREF

public static final String DEFAULT_COVER_IMAGE_HREF

See Also:

• Constant Field Values

Constructor Details

CoverpageBookProcessor

public CoverpageBookProcessor()

Method Details

processBook

public Book processBook(Book book)

Specified by:

processBook in interface BookProcessor

findCoverPage

private Resource findCoverPage(Book book)

setCoverResourceIds

private void setCoverResourceIds(Book book)

fixCoverResourceId

private void fixCoverResourceId(Book book,
 Resource resource,
 String defaultId)

getCoverPageHref

private String getCoverPageHref(Book book)

getCoverImageHref

private String getCoverImageHref(Resource imageResource,
 Book book)

getFirstImageSource

private Resource getFirstImageSource(Resource titlePageResource,
 Resources resources)

calculateAbsoluteImageHref

static String calculateAbsoluteImageHref(String relativeImageHref,
 String baseHref)

createCoverpageHtml

private String createCoverpageHtml(String title,
 String imageHref)

calculateResizeSize

private Dimension calculateResizeSize(BufferedImage image)

createThumbnail

private byte[] createThumbnail(byte[] imageData)
                        throws IOException

Throws:

IOException

createResizedCopy

private BufferedImage createResizedCopy(Image originalImage,
 int scaledWidth,
 int scaledHeight,
 boolean preserveAlpha)