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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Thu Apr 27 23:34:19 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class RenderableImageProducer</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/RenderableImageProducer.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. Ed. v1.3</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../java/awt/image/renderable/RenderableImageOp.html"><B>PREV CLASS</B></A> <A HREF="../../../../java/awt/image/renderable/RenderContext.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="RenderableImageProducer.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">java.awt.image.renderable</FONT><BR>Class RenderableImageProducer</H2><PRE><A HREF="../../../../java/lang/Object.html">java.lang.Object</A> | +--<B>java.awt.image.renderable.RenderableImageProducer</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../java/awt/image/ImageProducer.html">ImageProducer</A>, <A HREF="../../../../java/lang/Runnable.html">Runnable</A></DD></DL><HR><DL><DT>public class <B>RenderableImageProducer</B><DT>extends <A HREF="../../../../java/lang/Object.html">Object</A><DT>implements <A HREF="../../../../java/awt/image/ImageProducer.html">ImageProducer</A>, <A HREF="../../../../java/lang/Runnable.html">Runnable</A></DL><P>An adapter class that implements ImageProducer to allow the asynchronous production of a RenderableImage. The size of the ImageConsumer is determined by the scale factor of the usr2dev transform in the RenderContext. If the RenderContext is null, the default rendering of the RenderableImage is used. This class implements an asynchronous production that produces the image in one thread at one resolution. This class may be subclassed to implement versions that will render the image using several threads. These threads could render either the same image at progressively better quality, or different sections of the image at a single resolution.<P><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../java/awt/image/renderable/RenderableImageProducer.html#RenderableImageProducer(java.awt.image.renderable.RenderableImage, java.awt.image.renderable.RenderContext)">RenderableImageProducer</A></B>(<A HREF="../../../../java/awt/image/renderable/RenderableImage.html">RenderableImage</A> rdblImage, <A HREF="../../../../java/awt/image/renderable/RenderContext.html">RenderContext</A> rc)</CODE><BR> Constructs a new RenderableImageProducer from a RenderableImage and a RenderContext.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../java/awt/image/renderable/RenderableImageProducer.html#addConsumer(java.awt.image.ImageConsumer)">addConsumer</A></B>(<A HREF="../../../../java/awt/image/ImageConsumer.html">ImageConsumer</A> ic)</CODE><BR> Adds an ImageConsumer to the list of consumers interested in data for this image.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../java/awt/image/renderable/RenderableImageProducer.html#isConsumer(java.awt.image.ImageConsumer)">isConsumer</A></B>(<A HREF="../../../../java/awt/image/ImageConsumer.html">ImageConsumer</A> ic)</CODE><BR> Determine if an ImageConsumer is on the list of consumers currently interested in data for this image.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../java/awt/image/renderable/RenderableImageProducer.html#removeConsumer(java.awt.image.ImageConsumer)">removeConsumer</A></B>(<A HREF="../../../../java/awt/image/ImageConsumer.html">ImageConsumer</A> ic)</CODE><BR> Remove an ImageConsumer from the list of consumers interested in data for this image.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../java/awt/image/renderable/RenderableImageProducer.html#requestTopDownLeftRightResend(java.awt.image.ImageConsumer)">requestTopDownLeftRightResend</A></B>(<A HREF="../../../../java/awt/image/ImageConsumer.html">ImageConsumer</A> ic)</CODE><BR> Requests that a given ImageConsumer have the image data delivered one more time in top-down, left-right order.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../java/awt/image/renderable/RenderableImageProducer.html#run()">run</A></B>()</CODE><BR> The runnable method for this class.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../java/awt/image/renderable/RenderableImageProducer.html#setRenderContext(java.awt.image.renderable.RenderContext)">setRenderContext</A></B>(<A HREF="../../../../java/awt/image/renderable/RenderContext.html">RenderContext</A> rc)</CODE><BR> Sets a new RenderContext to use for the next startProduction() call.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../java/awt/image/renderable/RenderableImageProducer.html#startProduction(java.awt.image.ImageConsumer)">startProduction</A></B>(<A HREF="../../../../java/awt/image/ImageConsumer.html">ImageConsumer</A> ic)</CODE><BR> Adds an ImageConsumer to the list of consumers interested in data for this image, and immediately starts delivery of the image data through the ImageConsumer interface.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.lang.<A HREF="../../../../java/lang/Object.html">Object</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../java/lang/Object.html#clone()">clone</A>, <A HREF="../../../../java/lang/Object.html#equals(java.lang.Object)">equals</A>, <A HREF="../../../../java/lang/Object.html#finalize()">finalize</A>, <A HREF="../../../../java/lang/Object.html#getClass()">getClass</A>, <A HREF="../../../../java/lang/Object.html#hashCode()">hashCode</A>, <A HREF="../../../../java/lang/Object.html#notify()">notify</A>, <A HREF="../../../../java/lang/Object.html#notifyAll()">notifyAll</A>, <A HREF="../../../../java/lang/Object.html#toString()">toString</A>, <A HREF="../../../../java/lang/Object.html#wait()">wait</A>, <A HREF="../../../../java/lang/Object.html#wait(long)">wait</A>, <A HREF="../../../../java/lang/Object.html#wait(long, int)">wait</A></CODE></TD></TR></TABLE>⌨️ 快捷键说明
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