com.google.gwt.resources.rg

Class ImageResourceGenerator

java.lang.Object

com.google.gwt.resources.ext.AbstractResourceGenerator

com.google.gwt.resources.rg.ImageResourceGenerator

All Implemented Interfaces:

ResourceGenerator, SupportsGeneratorResultCaching

public final class ImageResourceGenerator
extends AbstractResourceGenerator
implements SupportsGeneratorResultCaching

Builds an image strip for all ImageResources defined within an ClientBundle.

Field Summary

Fields inherited from class com.google.gwt.resources.ext.AbstractResourceGenerator

STRIP_COMMENTS

Constructor Summary

Constructors

Constructor and Description
ImageResourceGenerator()

Method Summary

Modifier and Type	Method and Description
String	createAssignment(TreeLogger logger, ResourceContext context, JMethod method) Produce the right-hand-side of a Java assignment expression to provide the singleton instance object for a particular resource.
void	createFields(TreeLogger logger, ResourceContext context, ClientBundleFields fields) We use this as a signal that we have received all image methods and can now create the bundled images.
void	init(TreeLogger logger, ResourceContext context) A no-op implementation.
void	prepare(TreeLogger logger, ResourceContext context, ClientBundleRequirements requirements, JMethod method) Process each image method.

Methods inherited from class com.google.gwt.resources.ext.AbstractResourceGenerator

finish

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString

Constructor Detail

ImageResourceGenerator

public ImageResourceGenerator()

Method Detail

createAssignment

public String createAssignment(TreeLogger logger,
                               ResourceContext context,
                               JMethod method)
                        throws UnableToCompleteException

Description copied from interface: ResourceGenerator

Produce the right-hand-side of a Java assignment expression to provide the singleton instance object for a particular resource.

Example:

 new MySampleResource() { public Foo getFoo() { ... } }
 

Specified by:

createAssignment in interface ResourceGenerator

Specified by:

createAssignment in class AbstractResourceGenerator

Throws:

UnableToCompleteException

createFields

public void createFields(TreeLogger logger,
                         ResourceContext context,
                         ClientBundleFields fields)
                  throws UnableToCompleteException

We use this as a signal that we have received all image methods and can now create the bundled images.

Specified by:

createFields in interface ResourceGenerator

Overrides:

createFields in class AbstractResourceGenerator

Throws:

UnableToCompleteException

init

public void init(TreeLogger logger,
                 ResourceContext context)

Description copied from class: AbstractResourceGenerator

A no-op implementation.

Specified by:

init in interface ResourceGenerator

Overrides:

init in class AbstractResourceGenerator

prepare

public void prepare(TreeLogger logger,
                    ResourceContext context,
                    ClientBundleRequirements requirements,
                    JMethod method)
             throws UnableToCompleteException

Process each image method. This will either assign the image to an ImageBundleBuilder or reencode an external image.

Specified by:

prepare in interface ResourceGenerator

Overrides:

prepare in class AbstractResourceGenerator

Throws:

UnableToCompleteException