ImageSpriteCreator (GWT Javadoc)

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| GWT 2.7.0
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## com.google.gwt.resources.gss
Class ImageSpriteCreator

    java.lang.Object
      com.google.gwt.thirdparty.common.css.compiler.ast.DefaultTreeVisitor
          com.google.gwt.resources.gss.ImageSpriteCreator

All Implemented Interfaces:
  com.google.gwt.thirdparty.common.css.compiler.ast.AtRuleHandler, com.google.gwt.thirdparty.common.css.compiler.ast.CssCompilerPass, com.google.gwt.thirdparty.common.css.compiler.ast.CssTreeVisitor

    public class ImageSpriteCreator

extends com.google.gwt.thirdparty.common.css.compiler.ast.DefaultTreeVisitor
implements com.google.gwt.thirdparty.common.css.compiler.ast.CssCompilerPass

Visitor that detects sprite definitions and replace them by several css rules in order to create the corresponding sprited image.

This visitor will replace the following gss: `.foo { padding: 5px; gwt-sprite: imageResource; width: 150px; }` to the corresponding gss: `.foo { padding: 5px; /* @alternate &#42;/ width: eval("imageResource.getWidth", "px"); /* @alternate &#42;/ height: eval("imageResource.getHeight", "px"); /* @alternate &#42;/ overflow: hidden; /* @alternate &#42;/ background: resourceUrl("imageResource") eval("imageResource.getLeft", "px") eval("imageResource.getTop", "px") no-repeat; width: 150px; }`

This visitor will also check the presence of the `ImageResource.ImageOptions` annotation on the image resource in order to support correctly horizontal or vertical repetition.

Nested Class Summary
`(package private) static interface` | `ImageSpriteCreator.MethodByPathHelper`

Constructor Summary
`ImageSpriteCreator(com.google.gwt.thirdparty.common.css.compiler.ast.MutatingVisitController visitController, ResourceContext context, com.google.gwt.thirdparty.common.css.compiler.ast.ErrorManager errorManager)`
`ImageSpriteCreator(com.google.gwt.thirdparty.common.css.compiler.ast.MutatingVisitController visitController, ResourceContext context, com.google.gwt.thirdparty.common.css.compiler.ast.ErrorManager errorManager, ImageSpriteCreator.MethodByPathHelper methodByPathHelper)`

Method Summary
`boolean` | `enterDeclaration(com.google.gwt.thirdparty.common.css.compiler.ast.CssDeclarationNode declaration)`
`void` | `runPass()`

Methods inherited from class com.google.gwt.thirdparty.common.css.compiler.ast.DefaultTreeVisitor
`enterArgumentNode, enterAttributeSelector, enterBlock, enterClassSelector, enterCombinator, enterComponent, enterCompositeValueNode, enterCompositeValueNodeOperator, enterConditionalBlock, enterConditionalRule, enterDeclarationBlock, enterDefinition, enterFontFace, enterFunctionNode, enterIdSelector, enterImportBlock, enterImportRule, enterKey, enterKeyBlock, enterKeyframeRuleset, enterKeyframesRule, enterMediaRule, enterMediaTypeListDelimiter, enterMixin, enterMixinDefinition, enterPageRule, enterPageSelector, enterPropertyValue, enterProvideNode, enterPseudoClass, enterPseudoElement, enterRequireNode, enterRuleset, enterSelector, enterSelectorBlock, enterTree, enterUnknownAtRule, enterValueNode, leaveArgumentNode, leaveAttributeSelector, leaveBlock, leaveClassSelector, leaveCombinator, leaveComponent, leaveCompositeValueNode, leaveCompositeValueNodeOperator, leaveConditionalBlock, leaveConditionalRule, leaveDeclaration, leaveDeclarationBlock, leaveDefinition, leaveFontFace, leaveFunctionNode, leaveIdSelector, leaveImportBlock, leaveImportRule, leaveKey, leaveKeyBlock, leaveKeyframeRuleset, leaveKeyframesRule, leaveMediaRule, leaveMediaTypeListDelimiter, leaveMixin, leaveMixinDefinition, leavePageRule, leavePageSelector, leavePropertyValue, leaveProvideNode, leavePseudoClass, leavePseudoElement, leaveRequireNode, leaveRuleset, leaveSelector, leaveSelectorBlock, leaveTree, leaveUnknownAtRule, leaveValueNode, visit`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### ImageSpriteCreator

    public ImageSpriteCreator(com.google.gwt.thirdparty.common.css.compiler.ast.MutatingVisitController visitController,
                              ResourceContext context,
                              com.google.gwt.thirdparty.common.css.compiler.ast.ErrorManager errorManager)

### ImageSpriteCreator

    ImageSpriteCreator(com.google.gwt.thirdparty.common.css.compiler.ast.MutatingVisitController visitController,
                       ResourceContext context,
                       com.google.gwt.thirdparty.common.css.compiler.ast.ErrorManager errorManager,
                       ImageSpriteCreator.MethodByPathHelper methodByPathHelper)

Method Detail

### enterDeclaration

    public boolean enterDeclaration(com.google.gwt.thirdparty.common.css.compiler.ast.CssDeclarationNode declaration)

  Specified by:
    `enterDeclaration` in interface `com.google.gwt.thirdparty.common.css.compiler.ast.CssTreeVisitor`
  Overrides:
    `enterDeclaration` in class `com.google.gwt.thirdparty.common.css.compiler.ast.DefaultTreeVisitor`

### runPass

    public void runPass()

  Specified by:
    `runPass` in interface `com.google.gwt.thirdparty.common.css.compiler.ast.CssCompilerPass`

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