File	Doc	Category	Size	Date	Package
RenderableImage.java	API Doc	Java SE 5 API	7459	Fri Aug 26 14:56:56 BST 2005	java.awt.image.renderable

RenderableImage

Fields Summary
static final String	HINTS_OBSERVED String constant that can be used to identify a property on a RenderedImage obtained via the createRendering or createScaledRendering methods. If such a property exists, the value of the propoery will be a RenderingHints object specifying which hints were observed in creating the rendering.

Constructors Summary

Methods Summary
public java.awt.image.RenderedImage	createDefaultRendering() Returnd a RenderedImage instance of this image with a default width and height in pixels. The RenderContext is built automatically with an appropriate usr2dev transform and an area of interest of the full image. The rendering hints are empty. createDefaultRendering may make use of a stored rendering for speed. return a RenderedImage containing the rendered data.
public java.awt.image.RenderedImage	createRendering(java.awt.image.renderable.RenderContext renderContext) Creates a RenderedImage that represented a rendering of this image using a given RenderContext. This is the most general way to obtain a rendering of a RenderableImage. The created RenderedImage may have a property identified by the String HINTS_OBSERVED to indicate which RenderingHints (from the RenderContext) were used to create the image. In addition any RenderedImages that are obtained via the getSources() method on the created RenderedImage may have such a property. param renderContext the RenderContext to use to produce the rendering. return a RenderedImage containing the rendered data.
public java.awt.image.RenderedImage	createScaledRendering(int w, int h, java.awt.RenderingHints hints) Creates a RenderedImage instance of this image with width w, and height h in pixels. The RenderContext is built automatically with an appropriate usr2dev transform and an area of interest of the full image. All the rendering hints come from hints passed in. If w == 0, it will be taken to equal Math.round(h*(getWidth()/getHeight())). Similarly, if h == 0, it will be taken to equal Math.round(w*(getHeight()/getWidth())). One of w or h must be non-zero or else an IllegalArgumentException will be thrown. The created RenderedImage may have a property identified by the String HINTS_OBSERVED to indicate which RenderingHints were used to create the image. In addition any RenderedImages that are obtained via the getSources() method on the created RenderedImage may have such a property. param w the width of rendered image in pixels, or 0. param h the height of rendered image in pixels, or 0. param hints a RenderingHints object containg hints. return a RenderedImage containing the rendered data.
public float	getHeight() Gets the height in user coordinate space. By convention, the usual height of a RenderedImage is equal to 1.0F. return the height of the image in user coordinates.
public float	getMinX() Gets the minimum X coordinate of the rendering-independent image data. return the minimum X coordinate of the rendering-independent image data.
public float	getMinY() Gets the minimum Y coordinate of the rendering-independent image data. return the minimum Y coordinate of the rendering-independent image data.
public java.lang.Object	getProperty(java.lang.String name) Gets a property from the property set of this image. If the property name is not recognized, java.awt.Image.UndefinedProperty will be returned. param name the name of the property to get, as a String. return a reference to the property Object, or the value java.awt.Image.UndefinedProperty.
public java.lang.String[]	getPropertyNames() Returns a list of names recognized by getProperty. return a list of property names.
public java.util.Vector	getSources() Returns a vector of RenderableImages that are the sources of image data for this RenderableImage. Note that this method may return an empty vector, to indicate that the image has no sources, or null, to indicate that no information is available. return a (possibly empty) Vector of RenderableImages, or null.
public float	getWidth() Gets the width in user coordinate space. By convention, the usual width of a RenderableImage is equal to the image's aspect ratio (width divided by height). return the width of the image in user coordinates.
public boolean	isDynamic() Returns true if successive renderings (that is, calls to createRendering() or createScaledRendering()) with the same arguments may produce different results. This method may be used to determine whether an existing rendering may be cached and reused. It is always safe to return true. return true if successive renderings with the same arguments might produce different results; false otherwise.