Package com.jalios.jcms.thumbnail

Class AbstractThumbnailPolicyFilterImpl

java.lang.Object

com.jalios.jcms.policy.AbstractPolicyFilter

com.jalios.jcms.policy.BasicThumbnailPolicyFilter

com.jalios.jcms.thumbnail.AbstractThumbnailPolicyFilterImpl

All Implemented Interfaces:

GenericProvider, PluginComponent, PolicyFilter, ThumbnailPolicyFilter, java.lang.Comparable

Direct Known Subclasses:

DefaultImageThumbnailPolicyFilter, DefaultOpenOfficeThumbnailPolicyFilter, DefaultOpenXmlThumbnailPolicyFilter

public abstract class AbstractThumbnailPolicyFilterImpl
extends BasicThumbnailPolicyFilter

This class allow users to customize behaviour of widgets by re-writing call-back methods.

Since:

jcms-10.0.5

Version:

$Revision: 125705 $

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	REVISION

Fields inherited from class com.jalios.jcms.policy.AbstractPolicyFilter

order

Constructor Summary

Constructors

Constructor	Description
AbstractThumbnailPolicyFilterImpl()

Method Summary

Modifier and Type	Method	Description
abstract boolean	createThumbnail(FileDocument doc, java.io.File dest, ImageFormat format, int maxWidth, int maxHeight, java.lang.String background, boolean square, boolean done)	This method is a hook called by Thumbnail tag to generate a thumbnail of the given FileDocument.
boolean	createThumbnail(java.io.File src, java.io.File dest, ImageFormat format, int maxWidth, int maxHeight, java.lang.String background, boolean square, boolean done)	This method is a hook called by Thumbnail tag to generate a thumbnail of the given source file.
boolean	createThumbnail(java.net.URL url, java.io.File dest, ImageFormat format, int maxWidth, int maxHeight, java.lang.String background, boolean square, boolean done)	This method is a hook called by Thumbnail tag to generate a thumbnail of the given URL.
boolean	isValidImageSize(java.io.File imgFile, long width, long height)
boolean	supportsThumbnail(FileDocument doc)

Methods inherited from class com.jalios.jcms.policy.BasicThumbnailPolicyFilter

createThumbnail, createThumbnail, createThumbnail, createThumbnail, createThumbnail, createThumbnail, init, init, isValidImageSize, supportsThumbnail

Methods inherited from class com.jalios.jcms.policy.AbstractPolicyFilter

compareTo, equals, getOrder, setOrder

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Comparable

compareTo

Methods inherited from interface com.jalios.jcms.GenericProvider

getLabel, getName, isInitialized

Field Detail

REVISION

public static final java.lang.String REVISION

See Also:

Constant Field Values

Constructor Detail

AbstractThumbnailPolicyFilterImpl

public AbstractThumbnailPolicyFilterImpl()

Method Detail

createThumbnail

public boolean createThumbnail(java.io.File src,
                               java.io.File dest,
                               ImageFormat format,
                               int maxWidth,
                               int maxHeight,
                               java.lang.String background,
                               boolean square,
                               boolean done)

Description copied from interface: ThumbnailPolicyFilter

This method is a hook called by Thumbnail tag to generate a thumbnail of the given source file.

Specified by:

createThumbnail in interface ThumbnailPolicyFilter

Overrides:

createThumbnail in class BasicThumbnailPolicyFilter

Parameters:

src - source file of which to create a thumbnail

dest - destination file (the thumbnail to generate)

format - the format of the file to generate as requested by the ThumbnailTag

maxWidth - the maximum width of the thumbnail to generate

maxHeight - the maximum height of the thumbnail to generate

background - the background color (eg "FFFFFF") if sets the image dimension will be set maxWidth and maxHeight

square - set to true to crop image into a square using the specified width during thumbnail creation.

done - the global plugin createThumbnail() status

Returns:

true on success, or false if the thumbnail could not be created

See Also:

ThumbnailPolicyFilter.createThumbnail(File, File, ImageFormat, int, int, String, boolean, boolean)

isValidImageSize

public boolean isValidImageSize(java.io.File imgFile,
                                long width,
                                long height)

Parameters:

imgFile - the image File being checked (only used for logging)

width - the widht of the image (in pixel)

height - the heigth of the image (in pixel)

Returns:

true if the given dimension are valid, false otherwise

See Also:

ThumbnailPolicyFilter.isValidImageSize(File, long, long, boolean)

supportsThumbnail

public boolean supportsThumbnail(FileDocument doc)

Parameters:

doc - the FileDocument to be checked

Returns:

true if a thumbnail can be generated for the given document.

See Also:

ThumbnailPolicyFilter.supportsThumbnail(FileDocument, boolean)

createThumbnail

public abstract boolean createThumbnail(FileDocument doc,
                                        java.io.File dest,
                                        ImageFormat format,
                                        int maxWidth,
                                        int maxHeight,
                                        java.lang.String background,
                                        boolean square,
                                        boolean done)

Description copied from interface: ThumbnailPolicyFilter

This method is a hook called by Thumbnail tag to generate a thumbnail of the given FileDocument.

Specified by:

createThumbnail in interface ThumbnailPolicyFilter

Overrides:

createThumbnail in class BasicThumbnailPolicyFilter

Parameters:

doc - FileDocument of which to create a thumbnail

dest - destination file (the thumbnail to generate)

format - the format of the file to generate as requested by the ThumbnailTag

maxWidth - the maximum width of the thumbnail to generate

maxHeight - the maximum height of the thumbnail to generate

background - the background color (eg "FFFFFF") if sets the image dimension will be set maxWidth and maxHeight

square - set to true to crop image into a square using the specified width during thumbnail creation.

done - the global plugin createThumbnail() status

Returns:

true on success, or false if the thumbnail could not be created

See Also:

ThumbnailPolicyFilter.createThumbnail(FileDocument, File, ImageFormat, int, int, String, boolean, boolean)

createThumbnail

public boolean createThumbnail(java.net.URL url,
                               java.io.File dest,
                               ImageFormat format,
                               int maxWidth,
                               int maxHeight,
                               java.lang.String background,
                               boolean square,
                               boolean done)

Description copied from interface: ThumbnailPolicyFilter

This method is a hook called by Thumbnail tag to generate a thumbnail of the given URL.

Specified by:

createThumbnail in interface ThumbnailPolicyFilter

Overrides:

createThumbnail in class BasicThumbnailPolicyFilter

Parameters:

url - the URL of which to create a thumbnail

dest - destination file (the thumbnail to generate)

format - the format of the file to generate as requested by the ThumbnailTag

maxWidth - the maximum width of the thumbnail to generate

maxHeight - the maximum height of the thumbnail to generate

background - the background color (eg "FFFFFF") if sets the image dimension will be set maxWidth and maxHeight

square - set to true to crop image into a square using the specified width during thumbnail creation.

done - the global plugin createThumbnail() status

Returns:

true on success, or false if the thumbnail could not be created

See Also:

ThumbnailPolicyFilter.createThumbnail(URL, File, ImageFormat, int, int, String, boolean, boolean)