com.ivata.mask.web.tag.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
                  com.ivata.mask.web.tag.html.ImgTag

All Implemented Interfaces:

javax.servlet.jsp.tagext.BodyTag, javax.servlet.jsp.tagext.IterationTag, java.io.Serializable, javax.servlet.jsp.tagext.Tag

public class ImgTag

extends org.apache.struts.taglib.html.ImgTag

The tag inherits everything from its struts equivalent, but it tries to find out the missing size information from the image headers to make client rendering faster.

Since:

ivata masks 0.4 (2003-06-08)

Version:

$Revision: 1.5 $

Author:

Peter Illes

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.struts.taglib.html.ImgTag

action, align, border, contextRelative, height, hspace, imageName, ismap, lowsrc, messages, module, name, page, pageKey, paramId, paramName, paramProperty, paramScope, property, scope, src, srcKey, useLocalEncoding, usemap, vspace, width

Fields inherited from class org.apache.struts.taglib.html.BaseHandlerTag

accesskey, defaultLocale, 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() Overridden to null the width and height values to prevent their reuse.
int	doStartTag() Overridden to set the value of height and width , when not specified in input parameters.
protected java.lang.String	src() Get the src attribute URL.

Methods inherited from class org.apache.struts.taglib.html.ImgTag

getAction, getAlign, getBorder, getContextRelative, getHeight, getHspace, getImageName, getIsmap, getLowsrc, getModule, getName, getPage, getPageKey, getParamId, getParamName, getParamProperty, getParamScope, getProperty, getScope, getSrc, getSrcKey, getUsemap, getVspace, getWidth, isContextRelativeSet, isUseLocalEncoding, release, setAction, setAlign, setBorder, setContextRelative, setHeight, setHspace, setImageName, setIsmap, setLowsrc, setModule, setName, setPage, setPageKey, setParamId, setParamName, setParamProperty, setParamScope, setProperty, setScope, setSrc, setSrcKey, setUseLocalEncoding, setUsemap, setVspace, setWidth, url

Methods inherited from class org.apache.struts.taglib.html.BaseHandlerTag

getAccesskey, getAlt, getAltKey, getBundle, getDisabled, getElementClose, getIndexed, 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, prepareEventHandlers, prepareFocusEvents, prepareIndex, prepareKeyEvents, prepareMouseEvents, prepareStyles, prepareTextEvents, setAccesskey, setAlt, setAltKey, setBundle, setDisabled, setIndexed, 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

Constructor Detail

ImgTag

public ImgTag()

Method Detail

doEndTag

public int doEndTag()
             throws javax.servlet.jsp.JspException

Overridden to null the width and height values to prevent their reuse.

Returns:

value returned by superclass method.

Throws:

javax.servlet.jsp.JspException - Refer to ImgTag.doEndTag().

doStartTag

public int doStartTag()
               throws javax.servlet.jsp.JspException

Overridden to set the value of height and width , when not specified in input parameters.

Returns:

value returned by superclass method.

Throws:

javax.servlet.jsp.JspException - wraps any exception looking for or accesing the image file

src

protected java.lang.String src()
                        throws javax.servlet.jsp.JspException

Get the src attribute URL.

Returns:

src URL or null if none is applicable.

Throws:

javax.servlet.jsp.JspException - if the URL cannot be calculated.