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Tomahawk sandbox tag library.
Tag graphicImageDynamic

Extends standard graphicImage.

This tag renders a html img tag and can be used to render dynamic images.

Embedding images into html pages requires a second request to get the binary data stream of the image. The result is that the state of the view including the state of request scoped beans will not be available when the image is requested.

The image data is written by an image renderer which can be defined by the imageRendererClass attribute.

This component is able to use nested f:param elements to pass parameters to the image renderer.


Tag Information
Tag Classorg.apache.myfaces.custom.graphicimagedynamic.GraphicImageDynamicTag
TagExtraInfo ClassNone
Body ContentJSP
Display NameNone

Attributes
NameRequiredRequest-timeTypeDescription
imageRendererClassfalsefalsejava.lang.StringThe class which implements org.apache.myfaces.custom.graphicimagedynamic.ImageRenderer. The image renderer is responsible for loading the image. The class must have a default constructor. Any request scoped attribute or managed bean is not available when this image renderer is instantiated and used. The image renderer must render the binary data for the image by using the parameters passed by nested f:param elements and/or using session or application scoped beans.
valuefalsefalsejava.lang.StringA value binding which will be called to get the instance of an org.apache.myfaces.custom.graphicimagedynamic.ImageRenderer.
borderfalsefalsejava.lang.StringHTML: Specifies the width of the border of this element, in pixels. Deprecated in HTML 4.01.
hspacefalsefalsejava.lang.StringHTML: The amount of white space to be inserted to the left and right of this element, in undefined units. Deprecated in HTML 4.01.
vspacefalsefalsejava.lang.StringHTML: The amount of white space to be inserted above and below this element, in undefined units. Deprecated in HTML 4.01.
enabledOnUserRolefalsefalsejava.lang.StringIf user is in given role, this component will be rendered normally. If not, no hyperlink is rendered but all nested tags (=body) are rendered.
visibleOnUserRolefalsefalsejava.lang.StringIf user is in given role, this component will be rendered normally. If not, nothing is rendered and the body of this tag will be skipped.
forceIdfalsefalsejava.lang.StringIf true, this component will force the use of the specified id when rendering.
forceIdIndexfalsefalsejava.lang.StringIf false, this component will not append a '[n]' suffix (where 'n' is the row index) to components that are contained within a "list." This value will be true by default and the value will be ignored if the value of forceId is false (or not specified.)
alignfalsefalsejava.lang.StringHTML: Specifies the horizontal alignment of this element. Deprecated in HTML 4.01.
heightfalsefalsejava.lang.StringHTML: Overrides the natural height of this image, by specifying height in pixels.
ismapfalsefalsejava.lang.StringHTML: Specifies server-side image map handling for this image.
longdescfalsefalsejava.lang.StringHTML: A link to a long description of the image.
usemapfalsefalsejava.lang.StringHTML: Specifies an image map to use with this image.
widthfalsefalsejava.lang.StringHTML: Overrides the natural width of this image, by specifying width in pixels.
stylefalsefalsejava.lang.StringHTML: CSS styling instructions.
styleClassfalsefalsejava.lang.StringThe CSS class for this element. Corresponds to the HTML 'class' attribute.
altfalsefalsejava.lang.StringHTML: Specifies alternative text that can be used by a browser that can't show this element.
onclickfalsefalsejava.lang.StringHTML: Script to be invoked when the element is clicked.
ondblclickfalsefalsejava.lang.StringHTML: Script to be invoked when the element is double-clicked.
onkeydownfalsefalsejava.lang.StringHTML: Script to be invoked when a key is pressed down over this element.
onkeypressfalsefalsejava.lang.StringHTML: Script to be invoked when a key is pressed over this element.
onkeyupfalsefalsejava.lang.StringHTML: Script to be invoked when a key is released over this element.
onmousedownfalsefalsejava.lang.StringHTML: Script to be invoked when the pointing device is pressed over this element.
onmousemovefalsefalsejava.lang.StringHTML: Script to be invoked when the pointing device is moved while it is in this element.
onmouseoutfalsefalsejava.lang.StringHTML: Script to be invoked when the pointing device is moves out of this element.
onmouseoverfalsefalsejava.lang.StringHTML: Script to be invoked when the pointing device is moved into this element.
onmouseupfalsefalsejava.lang.StringHTML: Script to be invoked when the pointing device is released over this element.
dirfalsefalsejava.lang.StringHTML: The direction of text display, either 'ltr' (left-to-right) or 'rtl' (right-to-left).
langfalsefalsejava.lang.StringHTML: The base language of this document.
titlefalsefalsejava.lang.StringHTML: An advisory title for this element. Often used by the user agent as a tooltip.
urlfalsefalsejava.lang.StringAn alias for the "value" attribute.
idfalsefalsejava.lang.StringAn identifier for this particular component instance within a component view.

The id must be unique within the scope of the tag's enclosing NamingContainer (eg h:form or f:subview). The id is not necessarily unique across all components in the current view

This value must be a static value, ie not change over the lifetime of a component. It cannot be defined via an EL expression; only a string is permitted.

renderedfalsefalsejava.lang.StringA boolean value that indicates whether this component should be rendered. Default value: true.
bindingfalsefalsejava.lang.StringIdentifies a backing bean property (of type UIComponent or appropriate subclass) to bind to this component instance. This value must be an EL expression.

Variables
No Variables Defined.

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