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<h2 title="Class mxPngEncodeParam.Gray" class="title">Class mxPngEncodeParam.Gray</h2>
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<pre>public static class <span class="typeNameLabel">mxPngEncodeParam.Gray</span>
extends <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</a></pre>
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<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></li>
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<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></li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html#Gray--">Gray</a></span>()</code>
<div class="block">Constructs an instance of <code>PNGEncodeParam.Gray</code>.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html#getBackgroundGray--">getBackgroundGray</a></span>()</code>
<div class="block">Returns the suggested gray level of the background.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html#getBitShift--">getBitShift</a></span>()</code>
<div class="block">Returns the desired bit shift for a grayscale image.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html#getTransparentGray--">getTransparentGray</a></span>()</code>
<div class="block">Returns the gray value to be used to denote transparency.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html#isBackgroundSet--">isBackgroundSet</a></span>()</code>
<div class="block">Returns true if a 'bKGD' chunk will be output.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html#isBitDepthSet--">isBitDepthSet</a></span>()</code>
<div class="block">Returns true if the bit depth has been set.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html#isBitShiftSet--">isBitShiftSet</a></span>()</code>
<div class="block">Returns true if the bit shift has been set.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html#setBackgroundGray-int-">setBackgroundGray</a></span>(int&nbsp;gray)</code>
<div class="block">Sets the suggested gray level of the background.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html#setBitDepth-int-">setBitDepth</a></span>(int&nbsp;bitDepth)</code>
<div class="block">Sets the desired bit depth for a grayscale image.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html#setBitShift-int-">setBitShift</a></span>(int&nbsp;bitShift)</code>
<div class="block">Sets the desired bit shift for a grayscale image.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html#setTransparentGray-int-">setTransparentGray</a></span>(int&nbsp;transparentGray)</code>
<div class="block">Sets the gray value to be used to denote transparency.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html#unsetBackground--">unsetBackground</a></span>()</code>
<div class="block">Suppresses the 'bKGD' chunk from being output.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html#unsetBitShift--">unsetBitShift</a></span>()</code>
<div class="block">Suppresses the setting of the bit shift of a grayscale image.</div>
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<h3>Methods inherited from class&nbsp;com.mxgraph.util.png.<a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</a></h3>
<code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#addPrivateChunk-java.lang.String-byte:A-">addPrivateChunk</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#filterRow-byte:A-byte:A-byte:A:A-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 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href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetGamma--">unsetGamma</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetICCProfileData--">unsetICCProfileData</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetModificationTime--">unsetModificationTime</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetPaletteHistogram--">unsetPaletteHistogram</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetPhysicalDimension--">unsetPhysicalDimension</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetSignificantBits--">unsetSignificantBits</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetSRGBIntent--">unsetSRGBIntent</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetSuggestedPalette--">unsetSuggestedPalette</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetText--">unsetText</a>, <a 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<h3>Methods inherited from class&nbsp;java.lang.<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">Object</a></h3>
<code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h4>Gray</h4>
<pre>public&nbsp;Gray()</pre>
<div class="block">Constructs an instance of <code>PNGEncodeParam.Gray</code>.</div>
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<h4>unsetBackground</h4>
<pre>public&nbsp;void&nbsp;unsetBackground()</pre>
<div class="block">Suppresses the 'bKGD' chunk from being output.</div>
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<dd><code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetBackground--">unsetBackground</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</a></code></dd>
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<pre>public&nbsp;boolean&nbsp;isBackgroundSet()</pre>
<div class="block">Returns true if a 'bKGD' chunk will be output.</div>
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<dd><code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isBackgroundSet--">isBackgroundSet</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</a></code></dd>
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<pre>public&nbsp;void&nbsp;setBitDepth(int&nbsp;bitDepth)</pre>
<div class="block">Sets the desired bit depth for a grayscale image. The bit
depth must be one of 1, 2, 4, 8, or 16.
<p> When encoding a source image of a greater bit depth,
pixel values will be clamped to the smaller range after
shifting by the value given by <code>getBitShift()</code>.
When encoding a source image of a smaller bit depth, pixel
values will be shifted and left-filled with zeroes.</div>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setBitDepth-int-">setBitDepth</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</a></code></dd>
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<pre>public&nbsp;void&nbsp;setBackgroundGray(int&nbsp;gray)</pre>
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set, or has been unset, an
<code>IllegalStateException</code> will be thrown.</div>
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<dt><span class="throwsLabel">Throws:</span></dt>
<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 background gray level
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of the input image to be ignored.
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<pre>public&nbsp;int&nbsp;getTransparentGray()</pre>
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<p> If the transparent gray value has not previously been
set, or has been unset, an
<code>IllegalStateException</code> will be thrown.</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<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 transparent gray value
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<h4>setBitShift</h4>
<pre>public&nbsp;void&nbsp;setBitShift(int&nbsp;bitShift)</pre>
<div class="block">Sets the desired bit shift for a grayscale image.
Pixels in the source image will be shifted right by
the given amount prior to being clamped to the maximum
value given by the encoded image's bit depth.</div>
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<pre>public&nbsp;int&nbsp;getBitShift()</pre>
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<p> If the bit shift has not previously been set, or has been
unset, an <code>IllegalStateException</code> will be thrown.</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<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 bit shift is not set.</dd>
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<pre>public&nbsp;void&nbsp;unsetBitShift()</pre>
<div class="block">Suppresses the setting of the bit shift of a grayscale image.
Pixels in the source image will not be shifted prior to encoding.</div>
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<pre>public&nbsp;boolean&nbsp;isBitShiftSet()</pre>
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<pre>public&nbsp;boolean&nbsp;isBitDepthSet()</pre>
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