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mxPngEncodeParam.Palette (mxGraph 2.2.0.1 API Specification)
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com.mxgraph.util.png</FONT>
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Class mxPngEncodeParam.Palette</H2>
<PRE>
<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">com.mxgraph.util.png.mxPngEncodeParam</A>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>com.mxgraph.util.png.mxPngEncodeParam.Palette</B>
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<DT><B>Enclosing class:</B><DD><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</A></DD>
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<DT><PRE>public static class <B>mxPngEncodeParam.Palette</B><DT>extends <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</A></DL>
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<TH ALIGN="left"><B>Nested classes/interfaces inherited from class com.mxgraph.util.png.<A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</A></B></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html" title="class in com.mxgraph.util.png">mxPngEncodeParam.Gray</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html" title="class in com.mxgraph.util.png">mxPngEncodeParam.Palette</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.RGB.html" title="class in com.mxgraph.util.png">mxPngEncodeParam.RGB</A></CODE></TD>
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<TH ALIGN="left"><B>Fields inherited from class com.mxgraph.util.png.<A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</A></B></TH>
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<TD><CODE><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#bitDepth">bitDepth</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#bitDepthSet">bitDepthSet</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#INTENT_ABSOLUTE">INTENT_ABSOLUTE</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#INTENT_PERCEPTUAL">INTENT_PERCEPTUAL</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#INTENT_RELATIVE">INTENT_RELATIVE</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#INTENT_SATURATION">INTENT_SATURATION</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#PNG_FILTER_AVERAGE">PNG_FILTER_AVERAGE</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#PNG_FILTER_NONE">PNG_FILTER_NONE</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#PNG_FILTER_PAETH">PNG_FILTER_PAETH</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#PNG_FILTER_SUB">PNG_FILTER_SUB</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#PNG_FILTER_UP">PNG_FILTER_UP</A></CODE></TD>
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<TD><CODE><B><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#mxPngEncodeParam.Palette()">mxPngEncodeParam.Palette</A></B>()</CODE>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructs an instance of <code>PNGEncodeParam.Palette</code>.</TD>
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<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#getBackgroundPaletteIndex()">getBackgroundPaletteIndex</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the palette index of the suggested background color.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#getPalette()">getPalette</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the current RGB palette.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#getPaletteTransparency()">getPaletteTransparency</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the alpha values associated with each palette entry.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#isBackgroundSet()">isBackgroundSet</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns true if a 'bKGD' chunk will be output.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#isPaletteSet()">isPaletteSet</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns true if a 'PLTE' chunk will be output.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#setBackgroundPaletteIndex(int)">setBackgroundPaletteIndex</A></B>(int&nbsp;index)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the palette index of the suggested background color.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#setBitDepth(int)">setBitDepth</A></B>(int&nbsp;bitDepth)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the desired bit depth for a palette image.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#setPalette(int[])">setPalette</A></B>(int[]&nbsp;rgb)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the RGB palette of the image to be encoded.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#setPaletteTransparency(byte[])">setPaletteTransparency</A></B>(byte[]&nbsp;alpha)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the alpha values associated with each palette entry.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#unsetBackground()">unsetBackground</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Suppresses the 'bKGD' chunk from being output.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#unsetPalette()">unsetPalette</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Suppresses the 'PLTE' chunk from being output.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_com.mxgraph.util.png.mxPngEncodeParam"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class com.mxgraph.util.png.<A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#addPrivateChunk(java.lang.String, byte[])">addPrivateChunk</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#filterRow(byte[], byte[], byte[][], int, int)">filterRow</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getBitDepth()">getBitDepth</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getChromaticity()">getChromaticity</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getCompressedText()">getCompressedText</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getDefaultEncodeParam(java.awt.image.RenderedImage)">getDefaultEncodeParam</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getGamma()">getGamma</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getICCProfileData()">getICCProfileData</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getInterlacing()">getInterlacing</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getModificationTime()">getModificationTime</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getNumPrivateChunks()">getNumPrivateChunks</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getPaletteHistogram()">getPaletteHistogram</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getPhysicalDimension()">getPhysicalDimension</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getPrivateChunkData(int)">getPrivateChunkData</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getPrivateChunkType(int)">getPrivateChunkType</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getSignificantBits()">getSignificantBits</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getSRGBIntent()">getSRGBIntent</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getText()">getText</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isChromaticitySet()">isChromaticitySet</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isCompressedTextSet()">isCompressedTextSet</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isGammaSet()">isGammaSet</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isICCProfileDataSet()">isICCProfileDataSet</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isModificationTimeSet()">isModificationTimeSet</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isPaletteHistogramSet()">isPaletteHistogramSet</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isPhysicalDimensionSet()">isPhysicalDimensionSet</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isSignificantBitsSet()">isSignificantBitsSet</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isSRGBIntentSet()">isSRGBIntentSet</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isSuggestedPaletteSet()">isSuggestedPaletteSet</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isTextSet()">isTextSet</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isTransparencySet()">isTransparencySet</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#paethPredictor(int, int, int)">paethPredictor</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#removeAllPrivateChunks()">removeAllPrivateChunks</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#removeUnsafeToCopyPrivateChunks()">removeUnsafeToCopyPrivateChunks</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setChromaticity(float[])">setChromaticity</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setChromaticity(float, float, float, float, float, float, float, float)">setChromaticity</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setCompressedText(java.lang.String[])">setCompressedText</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setGamma(float)">setGamma</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setICCProfileData(byte[])">setICCProfileData</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setInterlacing(boolean)">setInterlacing</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setModificationTime(java.util.Date)">setModificationTime</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setPaletteHistogram(int[])">setPaletteHistogram</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setPhysicalDimension(int[])">setPhysicalDimension</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setPhysicalDimension(int, int, int)">setPhysicalDimension</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setSignificantBits(int[])">setSignificantBits</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setSRGBIntent(int)">setSRGBIntent</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setSuggestedPalette(com.mxgraph.util.png.mxPngSuggestedPaletteEntry[])">setSuggestedPalette</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setText(java.lang.String[])">setText</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetBitDepth()">unsetBitDepth</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetChromaticity()">unsetChromaticity</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetCompressedText()">unsetCompressedText</A>, <A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetGamma()">unsetGamma</A>, <A 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HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetTransparency()">unsetTransparency</A></CODE></TD>
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<A NAME="mxPngEncodeParam.Palette()"><!-- --></A><H3>
mxPngEncodeParam.Palette</H3>
<PRE>
public <B>mxPngEncodeParam.Palette</B>()</PRE>
<DL>
<DD>Constructs an instance of <code>PNGEncodeParam.Palette</code>.
<P>
</DL>
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<A NAME="unsetBackground()"><!-- --></A><H3>
unsetBackground</H3>
<PRE>
public void <B>unsetBackground</B>()</PRE>
<DL>
<DD>Suppresses the 'bKGD' chunk from being output.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetBackground()">unsetBackground</A></CODE> in class <CODE><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="isBackgroundSet()"><!-- --></A><H3>
isBackgroundSet</H3>
<PRE>
public boolean <B>isBackgroundSet</B>()</PRE>
<DL>
<DD>Returns true if a 'bKGD' chunk will be output.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isBackgroundSet()">isBackgroundSet</A></CODE> in class <CODE><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="setBitDepth(int)"><!-- --></A><H3>
setBitDepth</H3>
<PRE>
public void <B>setBitDepth</B>(int&nbsp;bitDepth)</PRE>
<DL>
<DD>Sets the desired bit depth for a palette image. The bit
depth must be one of 1, 2, 4, or 8, or else an
<code>IllegalArgumentException</code> will be thrown.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setBitDepth(int)">setBitDepth</A></CODE> in class <CODE><A HREF="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="setPalette(int[])"><!-- --></A><H3>
setPalette</H3>
<PRE>
public void <B>setPalette</B>(int[]&nbsp;rgb)</PRE>
<DL>
<DD>Sets the RGB palette of the image to be encoded.
The <code>rgb</code> parameter contains alternating
R, G, B values for each color index used in the image.
The number of elements must be a multiple of 3 between
3 and 3*256.
<p> The 'PLTE' chunk will encode this information.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>rgb</CODE> - An array of <code>int</code>s.</DL>
</DD>
</DL>
<HR>
<A NAME="getPalette()"><!-- --></A><H3>
getPalette</H3>
<PRE>
public int[] <B>getPalette</B>()</PRE>
<DL>
<DD>Returns the current RGB palette.
<p> If the palette has not previously been set, or has been
unset, an <code>IllegalStateException</code> will be thrown.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>An array of <code>int</code>s.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</A></CODE> - if the palette is not set.</DL>
</DD>
</DL>
<HR>
<A NAME="unsetPalette()"><!-- --></A><H3>
unsetPalette</H3>
<PRE>
public void <B>unsetPalette</B>()</PRE>
<DL>
<DD>Suppresses the 'PLTE' chunk from being output.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="isPaletteSet()"><!-- --></A><H3>
isPaletteSet</H3>
<PRE>
public boolean <B>isPaletteSet</B>()</PRE>
<DL>
<DD>Returns true if a 'PLTE' chunk will be output.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="setBackgroundPaletteIndex(int)"><!-- --></A><H3>
setBackgroundPaletteIndex</H3>
<PRE>
public void <B>setBackgroundPaletteIndex</B>(int&nbsp;index)</PRE>
<DL>
<DD>Sets the palette index of the suggested background color.
<p> The 'bKGD' chunk will encode this information.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getBackgroundPaletteIndex()"><!-- --></A><H3>
getBackgroundPaletteIndex</H3>
<PRE>
public int <B>getBackgroundPaletteIndex</B>()</PRE>
<DL>
<DD>Returns the palette index of the suggested background color.
<p> If the background palette index has not previously been
set, or has been unset, an
<code>IllegalStateException</code> will be thrown.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</A></CODE> - if the palette index is not set.</DL>
</DD>
</DL>
<HR>
<A NAME="setPaletteTransparency(byte[])"><!-- --></A><H3>
setPaletteTransparency</H3>
<PRE>
public void <B>setPaletteTransparency</B>(byte[]&nbsp;alpha)</PRE>
<DL>
<DD>Sets the alpha values associated with each palette entry.
The <code>alpha</code> parameter should have as many entries
as there are RGB triples in the palette.
<p> The 'tRNS' chunk will encode this information.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getPaletteTransparency()"><!-- --></A><H3>
getPaletteTransparency</H3>
<PRE>
public byte[] <B>getPaletteTransparency</B>()</PRE>
<DL>
<DD>Returns the alpha values associated with each palette entry.
<p> If the palette transparency has not previously been
set, or has been unset, an
<code>IllegalStateException</code> will be thrown.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</A></CODE> - if the palette transparency is
not set.</DL>
</DD>
</DL>
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