Package com.itextpdf.layout.element

Interface IElement

All Superinterfaces:

IPropertyContainer

All Known Subinterfaces:

IAbstractElement, IBlockElement, IFormField, ILargeElement, ILeafElement

All Known Implementing Classes:

AbstractElement, AbstractSelectField, AreaBreak, BlockElement, Button, Cell, CheckBox, ComboBoxField, Div, FormField, Image, InputField, LineSeparator, Link, List, ListBoxField, ListItem, MulticolContainer, Paragraph, Radio, SignatureFieldAppearance, SvgImage, Tab, Table, Text, TextArea

 public interface IElement extends IPropertyContainer 
      

This class represents a layout element, i.e. a piece of content that will take up 'physical' space on a canvas or document. Its presence and positioning may influence the position of other IElements on the layout surface.

Method Summary

Modifier and Type	Method	Description
IRenderer	createRendererSubTree()	Creates a renderer subtree with root in the current element.
IRenderer	getRenderer()	Gets a renderer for this element.
void	setNextRenderer(IRenderer renderer)	Overrides the IRenderer instance which will be returned by the next call to the getRenderer().

Methods inherited from interface com.itextpdf.layout.IPropertyContainer

deleteOwnProperty, getDefaultProperty, getOwnProperty, getProperty, hasOwnProperty, hasProperty, setProperty

Method Details

setNextRenderer

 void setNextRenderer 
             (IRenderer renderer) 
            

Overrides the IRenderer instance which will be returned by the next call to the getRenderer().

Parameters:

renderer - the renderer instance

getRenderer

 IRenderer getRenderer() 
            

Gets a renderer for this element. Note that this method can be called more than once. By default each element should define its own renderer, but the renderer can be overridden by setNextRenderer(IRenderer) method call.

Returns:

a renderer for this element

createRendererSubTree

 IRenderer createRendererSubTree() 
            

Creates a renderer subtree with root in the current element. Compared to getRenderer(), the renderer returned by this method should contain all the child renderers for children of the current element.

Returns:

a renderer subtree for this element