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## org.apache.struts.taglib.html
Class ImgTag

    java.lang.Object
      javax.servlet.jsp.tagext.TagSupport
          javax.servlet.jsp.tagext.BodyTagSupport
              org.apache.struts.taglib.html.BaseHandlerTag
                  org.apache.struts.taglib.html.ImgTag

All Implemented Interfaces:
  Serializable, BodyTag, IterationTag, Tag

Direct Known Subclasses:
  ELImgTag, NestedImgTag

    public class ImgTag

extends BaseHandlerTag

Generate an IMG tag to the specified image URI.

TODO:

- Make the alt and src settable from properties (for i18n)

Version:
  $Rev: 552353 $
See Also:
  Serialized Form

Field Summary
`protected String` | `action` The module-relative action (beginning with a slash) which will be used as the source for this image.
`protected String` | `align` The property to specify where to align the image.
`protected String` | `border` The border size around the image.
`protected String` | `height` The image height.
`protected String` | `hspace` The horizontal spacing around the image.
`protected String` | `imageName` The image name for named images.
`protected String` | `ismap` Server-side image map declaration.
`protected static MessageResources` | `messages` The message resources for this package.
`protected String` | `module` The module prefix (beginning with a slash) which will be used to find the action for this link.
`protected String` | `name` The JSP bean name for query parameters.
`protected String` | `page` The module-relative path, starting with a slash character, of the image to be displayed by this rendered tag.
`protected String` | `pageKey` The message resources key under which we should look up the `page` attribute for this generated tag, if any.
`protected String` | `paramId` In situations where an image is dynamically generated (such as to create a chart graph), this specifies the single-parameter request parameter name to generate.
`protected String` | `paramName` The single-parameter JSP bean name.
`protected String` | `paramProperty` The single-parameter JSP bean property.
`protected String` | `paramScope` The single-parameter JSP bean scope.
`protected String` | `property` The JSP bean property name for query parameters.
`protected String` | `scope` The scope of the bean specified by the name property, if any.
`protected String` | `src` The image source URI.
`protected String` | `srcKey` The message resources key under which we should look up the `src` attribute for this generated tag, if any.
`protected boolean` | `useLocalEncoding`
`protected String` | `usemap` Client-side image map declaration.
`protected String` | `vspace` The vertical spacing around the image.
`protected String` | `width` The image width.

Fields inherited from class org.apache.struts.taglib.html.BaseHandlerTag
`accesskey, doDisabled, doReadonly, indexed, tabindex`

Fields inherited from class javax.servlet.jsp.tagext.BodyTagSupport
`bodyContent`

Fields inherited from class javax.servlet.jsp.tagext.TagSupport
`id, pageContext`

Fields inherited from interface javax.servlet.jsp.tagext.BodyTag
`EVAL_BODY_BUFFERED, EVAL_BODY_TAG`

Fields inherited from interface javax.servlet.jsp.tagext.IterationTag
`EVAL_BODY_AGAIN`

Fields inherited from interface javax.servlet.jsp.tagext.Tag
`EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE`

Constructor Summary
`ImgTag()`

Method Summary
`int` | `doEndTag()` Render the end of the IMG tag.
`int` | `doStartTag()` Render the beginning of the IMG tag.
`String` | `getAction()`
`String` | `getAlign()`
`String` | `getBorder()`
`String` | `getHeight()`
`String` | `getHspace()`
`String` | `getImageName()`
`String` | `getIsmap()`
`String` | `getModule()`
`String` | `getName()`
`String` | `getPage()`
`String` | `getPageKey()`
`String` | `getParamId()`
`String` | `getParamName()`
`String` | `getParamProperty()`
`String` | `getParamScope()`
`String` | `getProperty()`
`String` | `getScope()`
`String` | `getSrc()`
`String` | `getSrcKey()`
`String` | `getUsemap()`
`String` | `getVspace()`
`String` | `getWidth()`
`boolean` | `isUseLocalEncoding()`
`void` | `release()` Release any acquired resources.
`void` | `setAction(String action)`
`void` | `setAlign(String align)`
`void` | `setBorder(String border)`
`void` | `setHeight(String height)`
`void` | `setHspace(String hspace)`
`void` | `setImageName(String imageName)`
`void` | `setIsmap(String ismap)`
`void` | `setModule(String module)`
`void` | `setName(String name)`
`void` | `setPage(String page)`
`void` | `setPageKey(String pageKey)`
`void` | `setParamId(String paramId)`
`void` | `setParamName(String paramName)`
`void` | `setParamProperty(String paramProperty)`
`void` | `setParamScope(String paramScope)`
`void` | `setProperty(String property)`
`void` | `setScope(String scope)`
`void` | `setSrc(String src)`
`void` | `setSrcKey(String srcKey)`
`void` | `setUseLocalEncoding(boolean b)`
`void` | `setUsemap(String usemap)`
`void` | `setVspace(String vspace)`
`void` | `setWidth(String width)`
`protected String` | `src()` Return the base source URL that will be rendered in the `src` property for this generated element, or `null` if there is no such URL.
`protected String` | `url(String url)` Return the specified src URL, modified as necessary with optional request parameters.

Methods inherited from class org.apache.struts.taglib.html.BaseHandlerTag
`doErrorsExist, getAccesskey, getAlt, getAltKey, getBundle, getDir, getDisabled, getElementClose, getErrorKey, getErrorStyle, getErrorStyleClass, getErrorStyleId, getIndexed, getIndexValue, getLang, getLocale, getOnblur, getOnchange, getOnclick, getOndblclick, getOnfocus, getOnkeydown, getOnkeypress, getOnkeyup, getOnmousedown, getOnmousemove, getOnmouseout, getOnmouseover, getOnmouseup, getOnselect, getReadonly, getStyle, getStyleClass, getStyleId, getTabindex, getTitle, getTitleKey, isXhtml, lookupProperty, message, prepareAttribute, prepareEventHandlers, prepareFocusEvents, prepareIndex, prepareInternationalization, prepareKeyEvents, prepareMouseEvents, prepareName, prepareOtherAttributes, prepareStyles, prepareTextEvents, setAccesskey, setAlt, setAltKey, setBundle, setDir, setDisabled, setErrorKey, setErrorStyle, setErrorStyleClass, setErrorStyleId, setIndexed, setLang, setLocale, setOnblur, setOnchange, setOnclick, setOndblclick, setOnfocus, setOnkeydown, setOnkeypress, setOnkeyup, setOnmousedown, setOnmousemove, setOnmouseout, setOnmouseover, setOnmouseup, setOnselect, setReadonly, setStyle, setStyleClass, setStyleId, setTabindex, setTitle, setTitleKey`

Methods inherited from class javax.servlet.jsp.tagext.BodyTagSupport
`doAfterBody, doInitBody, getBodyContent, getPreviousOut, setBodyContent`

Methods inherited from class javax.servlet.jsp.tagext.TagSupport
`findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue`

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

Methods inherited from interface javax.servlet.jsp.tagext.Tag
`getParent, setPageContext, setParent`

Field Detail

### messages

    protected static MessageResources messages

  The message resources for this package.

### align

    protected String align

  The property to specify where to align the image.

### border

    protected String border

  The border size around the image.

### height

    protected String height

  The image height.

### hspace

    protected String hspace

  The horizontal spacing around the image.

### imageName

    protected String imageName

  The image name for named images.

### ismap

    protected String ismap

  Server-side image map declaration.

### name

    protected String name

  The JSP bean name for query parameters.

### page

    protected String page

  The module-relative path, starting with a slash character, of the image to be displayed by this rendered tag.

### pageKey

    protected String pageKey

  The message resources key under which we should look up the `page` attribute for this generated tag, if any.

### action

    protected String action

  The module-relative action (beginning with a slash) which will be used as the source for this image.

### module

    protected String module

  The module prefix (beginning with a slash) which will be used to find the action for this link.

### paramId

    protected String paramId

  In situations where an image is dynamically generated (such as to create a chart graph), this specifies the single-parameter request parameter name to generate.

### paramName

    protected String paramName

  The single-parameter JSP bean name.

### paramProperty

    protected String paramProperty

  The single-parameter JSP bean property.

### paramScope

    protected String paramScope

  The single-parameter JSP bean scope.

### property

    protected String property

  The JSP bean property name for query parameters.

### scope

    protected String scope

  The scope of the bean specified by the name property, if any.

### src

    protected String src

  The image source URI.

### srcKey

    protected String srcKey

  The message resources key under which we should look up the `src` attribute for this generated tag, if any.

### usemap

    protected String usemap

  Client-side image map declaration.

### vspace

    protected String vspace

  The vertical spacing around the image.

### width

    protected String width

  The image width.

### useLocalEncoding

    protected boolean useLocalEncoding

Constructor Detail

### ImgTag

    public ImgTag()

Method Detail

### getAlign

    public String getAlign()

### setAlign

    public void setAlign(String align)

### getBorder

    public String getBorder()

### setBorder

    public void setBorder(String border)

### getHeight

    public String getHeight()

### setHeight

    public void setHeight(String height)

### getHspace

    public String getHspace()

### setHspace

    public void setHspace(String hspace)

### getImageName

    public String getImageName()

### setImageName

    public void setImageName(String imageName)

### getIsmap

    public String getIsmap()

### setIsmap

    public void setIsmap(String ismap)

### getName

    public String getName()

### setName

    public void setName(String name)

### getPage

    public String getPage()

### setPage

    public void setPage(String page)

### getPageKey

    public String getPageKey()

### setPageKey

    public void setPageKey(String pageKey)

### getAction

    public String getAction()

### setAction

    public void setAction(String action)

### getModule

    public String getModule()

### setModule

    public void setModule(String module)

### getParamId

    public String getParamId()

### setParamId

    public void setParamId(String paramId)

### getParamName

    public String getParamName()

### setParamName

    public void setParamName(String paramName)

### getParamProperty

    public String getParamProperty()

### setParamProperty

    public void setParamProperty(String paramProperty)

### getParamScope

    public String getParamScope()

### setParamScope

    public void setParamScope(String paramScope)

### getProperty

    public String getProperty()

### setProperty

    public void setProperty(String property)

### getScope

    public String getScope()

### setScope

    public void setScope(String scope)

### getSrc

    public String getSrc()

### setSrc

    public void setSrc(String src)

### getSrcKey

    public String getSrcKey()

### setSrcKey

    public void setSrcKey(String srcKey)

### getUsemap

    public String getUsemap()

### setUsemap

    public void setUsemap(String usemap)

### getVspace

    public String getVspace()

### setVspace

    public void setVspace(String vspace)

### getWidth

    public String getWidth()

### setWidth

    public void setWidth(String width)

### isUseLocalEncoding

    public boolean isUseLocalEncoding()

### setUseLocalEncoding

    public void setUseLocalEncoding(boolean b)

### doStartTag

    public int doStartTag()
                   throws JspException

  Render the beginning of the IMG tag.

  Specified by:
    `doStartTag` in interface `Tag`
  Overrides:
    `doStartTag` in class `BodyTagSupport`
  Throws:
    `JspException` - if a JSP exception has occurred

### doEndTag

    public int doEndTag()
                 throws JspException

  Render the end of the IMG tag.

  Specified by:
    `doEndTag` in interface `Tag`
  Overrides:
    `doEndTag` in class `BodyTagSupport`
  Throws:
    `JspException` - if a JSP exception has occurred

### release

    public void release()

  Release any acquired resources.

  Specified by:
    `release` in interface `Tag`
  Overrides:
    `release` in class `BaseHandlerTag`

### src

    protected String src()
                  throws JspException

  Return the base source URL that will be rendered in the `src` property for this generated element, or `null` if there is no such URL.

  Throws:
    `JspException` - if an error occurs

### url

    protected String url(String url)
                  throws JspException

  Return the specified src URL, modified as necessary with optional request parameters.

  Parameters:
    `url` - The URL to be modified (or null if this url will not be used)
  Throws:
    `JspException` - if an error occurs preparing the URL

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