Class ImageTag

java.lang.Object

jakarta.servlet.jsp.tagext.TagSupport

org.deltava.taglib.BrowserInfoTag

org.deltava.taglib.html.ElementTag

org.deltava.taglib.html.ImageTag

All Implemented Interfaces:

jakarta.servlet.jsp.tagext.IterationTag, jakarta.servlet.jsp.tagext.JspTag, jakarta.servlet.jsp.tagext.Tag, Serializable

Direct Known Subclasses:

FlagTag, ImageBeanTag, RemoteAddressTag

public class ImageTag
extends ElementTag

An JSP Tag to generate an IMG element.

Since:

1.0

Version:

10.2

Author:

Luke

See Also:

• Serialized Form

Field Summary

Fields inherited from class ElementTag

_classes, _data, _out

Modifier and Type	Field	Description
protected final Collection<String>	_classes
protected final XMLRenderer	_data
protected jakarta.servlet.jsp.JspWriter	_out

Fields inherited from class jakarta.servlet.jsp.tagext.TagSupport

id, pageContext

Fields inherited from interface jakarta.servlet.jsp.tagext.IterationTag

EVAL_BODY_AGAIN

Fields inherited from interface jakarta.servlet.jsp.tagext.Tag

EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

Constructor Summary

Constructors

Constructor	Description
ImageTag()	Creates a new Image element tag.

Method Summary

Modifier and Type	Method	Description
int	doEndTag()	Generates this image's HTML.
int	doStartTag()	Executed post tag setup.
void	release()
protected void	renderHTML()	Renders the image tag tot he JSP output stream.
void	setCaption(String caption)	Sets the alternate caption for this image.
void	setSrc(String url)	Sets the source of this image.
void	setX(int width)	Sets the width of ths image.
void	setY(int height)	Sets the height of ths image.

Methods inherited from class ElementTag

getFormIndexCount, getName, getParentFormTag, setClassName, setID, setNumericAttr, setPageContext, setStyle

Modifier and Type	Method	Description
protected int	getFormIndexCount()	Gets and increments the current tab index count for the parent form tag.
protected String	getName()	Returns the type of HTML element this tag generated.
protected FormTag	getParentFormTag()	Returns the parent form tag.
void	setClassName(String cName)	Sets the CSS class name of this HTML element.
void	setID(String id)	Sets the ID of this HTML element.
protected void	setNumericAttr(String attrName, int value, int minValue)	Sets a numeric attribute.
void	setPageContext(jakarta.servlet.jsp.PageContext ctxt)
void	setStyle(String style)	Associates a CSS style with this HTML element.

Methods inherited from class BrowserInfoTag

getBrowserContext, passedCAPTCHA

Modifier and Type	Method	Description
protected HTTPContextData	getBrowserContext()	Fetches the browser data.
protected boolean	passedCAPTCHA()	Returns whether the user has passed CAPTCHA validation.

Methods inherited from class jakarta.servlet.jsp.tagext.TagSupport

doAfterBody, findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setParent, setValue

Methods inherited from class Object

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

Constructor Details

ImageTag

public ImageTag()

Creates a new Image element tag.

Method Details

renderHTML

protected void renderHTML()
                   throws Exception

Renders the image tag tot he JSP output stream.

Throws:

Exception - if an error occurs

doEndTag

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

Generates this image's HTML.

Specified by:

doEndTag in interface jakarta.servlet.jsp.tagext.Tag

Overrides:

doEndTag in class jakarta.servlet.jsp.tagext.TagSupport

Throws:

jakarta.servlet.jsp.JspException - if an error occurs

setX

public void setX(int width)

Sets the width of ths image. This does nothing if a negative, zero or non-numeric value is passed.

Parameters:

width - the width of the image in pixels

setY

public void setY(int height)

Sets the height of ths image. This does nothing if a negative, zero or non-numeric value is passed.

Parameters:

height - the height of the image in pixels

setSrc

public void setSrc(String url)

Sets the source of this image.

Parameters:

url - the location of the image

setCaption

public void setCaption(String caption)

Sets the alternate caption for this image.

Parameters:

caption - the caption for this mage

release

public void release()

Specified by:

release in interface jakarta.servlet.jsp.tagext.Tag

Overrides:

release in class ElementTag

doStartTag

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

Executed post tag setup. Creates a STYLE element if dimensions specified.

Specified by:

doStartTag in interface jakarta.servlet.jsp.tagext.Tag

Overrides:

doStartTag in class ElementTag

Returns:

SKIP_BODY always

Throws:

jakarta.servlet.jsp.JspException - if an error occurs