componentcolormodel.html

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 components. This array can then be passed to the <CODE>setDataElements</CODE> 
 method of a <CODE>WritableRaster</CODE> object.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#getDataElements(int[], int, java.lang.Object)">getDataElements</A></CODE> in class <CODE><A HREF="../../../java/awt/image/ColorModel.html">ColorModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>components</CODE> - An array of unnormalized color/alpha components.<DD><CODE>offset</CODE> - The integer offset into the <CODE>components</CODE> array.<DD><CODE>obj</CODE> - The object in which to store the data element array 
 representation of the pixel. If <CODE>obj</CODE> variable is null, 
 a new array is allocated.  If <CODE>obj</CODE> is not null, it must 
 be a primitive array of type <CODE>transferType</CODE>. An 
 <CODE>ArrayIndexOutOfBoundsException</CODE> is thrown if 
 <CODE>obj</CODE> is not large enough to hold a pixel value 
 for this <CODE>ColorModel</CODE>.  Since
 <code>ComponentColorModel</code> can be subclassed, subclasses
 inherit the implementation of this method and if they don't
 override it then they throw an exception if they use an 
 unsupported <code>transferType</code>.<DT><B>Returns:</B><DD>The data element array representation of a pixel 
 in this <CODE>ColorModel</CODE>.<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - If the components array
 is not large enough to hold all the color and alpha components
 (starting at offset).<DD><CODE><A HREF="../../../java/lang/ClassCastException.html">ClassCastException</A></CODE> - If <CODE>obj</CODE> is not null and is not a 
 primitive  array of type <CODE>transferType</CODE>.<DD><CODE><A HREF="../../../java/lang/ArrayIndexOutOfBoundsException.html">ArrayIndexOutOfBoundsException</A></CODE> - If <CODE>obj</CODE> is not large
 enough to hold a pixel value for this <CODE>ColorModel</CODE>.<DD><CODE><A HREF="../../../java/lang/UnsupportedOperationException.html">UnsupportedOperationException</A></CODE> - If the transfer type of 
 this <CODE>ComponentColorModel</CODE>
 is not one of the supported transfer types:  
 <CODE>DataBuffer.TYPE_BYTE</CODE>, <CODE>DataBuffer.TYPE_USHORT</CODE>, 
 or <CODE>DataBuffer.TYPE_INT</CODE>.<DT><B>See Also: </B><DD><A HREF="../../../java/awt/image/WritableRaster.html#setDataElements(int, int, java.lang.Object)"><CODE>WritableRaster.setDataElements(int, int, java.lang.Object)</CODE></A>, 
<A HREF="../../../java/awt/image/SampleModel.html#setDataElements(int, int, java.lang.Object, java.awt.image.DataBuffer)"><CODE>SampleModel.setDataElements(int, int, java.lang.Object, java.awt.image.DataBuffer)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="coerceData(java.awt.image.WritableRaster, boolean)"><!-- --></A><H3>
coerceData</H3>
<PRE>
public <A HREF="../../../java/awt/image/ColorModel.html">ColorModel</A> <B>coerceData</B>(<A HREF="../../../java/awt/image/WritableRaster.html">WritableRaster</A>&nbsp;raster,
                             boolean&nbsp;isAlphaPremultiplied)</PRE>
<DL>
<DD>Forces the raster data to match the state specified in the
 <CODE>isAlphaPremultiplied</CODE> variable, assuming the data 
 is currently correctly described by this <CODE>ColorModel</CODE>.  
 It may multiply or divide the color raster data by alpha, or 
 do nothing if the data is in the correct state.  If the data needs 
 to be coerced, this method also returns an instance of 
 this <CODE>ColorModel</CODE> with
 the <CODE>isAlphaPremultiplied</CODE> flag set appropriately.
 Since <code>ColorModel</code> can be subclassed, subclasses inherit
 the implementation of this method and if they don't override it
 then they throw an exception if they use an unsupported 
 <code>transferType</code>.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#coerceData(java.awt.image.WritableRaster, boolean)">coerceData</A></CODE> in class <CODE><A HREF="../../../java/awt/image/ColorModel.html">ColorModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/NullPointerException.html">NullPointerException</A></CODE> - if <code>raster</code> is 
 <code>null</code> and data coercion is required.<DD><CODE><A HREF="../../../java/lang/UnsupportedOperationException.html">UnsupportedOperationException</A></CODE> - if the transfer type of 
 this <CODE>ComponentColorModel</CODE>
 is not one of the supported transfer types:  
 <CODE>DataBuffer.TYPE_BYTE</CODE>, <CODE>DataBuffer.TYPE_USHORT</CODE>, 
 or <CODE>DataBuffer.TYPE_INT</CODE>.</DL>
</DD>
</DL>
<HR>

<A NAME="isCompatibleRaster(java.awt.image.Raster)"><!-- --></A><H3>
isCompatibleRaster</H3>
<PRE>
public boolean <B>isCompatibleRaster</B>(<A HREF="../../../java/awt/image/Raster.html">Raster</A>&nbsp;raster)</PRE>
<DL>
<DD>Returns true if <CODE>raster</CODE> is compatible with this 
 <CODE>ColorModel</CODE>; false if it is not.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#isCompatibleRaster(java.awt.image.Raster)">isCompatibleRaster</A></CODE> in class <CODE><A HREF="../../../java/awt/image/ColorModel.html">ColorModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>raster</CODE> - The <CODE>Raster</CODE> object to test for compatibility.<DT><B>Returns:</B><DD><CODE>true</CODE> if <CODE>raster</CODE> is compatible with this 
 <CODE>ColorModel</CODE>, <CODE>false</CODE> if it is not.</DL>
</DD>
</DL>
<HR>

<A NAME="createCompatibleWritableRaster(int, int)"><!-- --></A><H3>
createCompatibleWritableRaster</H3>
<PRE>
public <A HREF="../../../java/awt/image/WritableRaster.html">WritableRaster</A> <B>createCompatibleWritableRaster</B>(int&nbsp;w,
                                                     int&nbsp;h)</PRE>
<DL>
<DD>Creates a <CODE>WritableRaster</CODE> with the specified width and height, 
 that  has a data layout (<CODE>SampleModel</CODE>) compatible with 
 this <CODE>ColorModel</CODE>.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#createCompatibleWritableRaster(int, int)">createCompatibleWritableRaster</A></CODE> in class <CODE><A HREF="../../../java/awt/image/ColorModel.html">ColorModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>w</CODE> - The width of the <CODE>WritableRaster</CODE> you want to create.<DD><CODE>h</CODE> - The height of the <CODE>WritableRaster</CODE> you want to create.<DT><B>Returns:</B><DD>A <CODE>WritableRaster</CODE> that is compatible with 
 this <CODE>ColorModel</CODE>.<DT><B>See Also: </B><DD><A HREF="../../../java/awt/image/WritableRaster.html"><CODE>WritableRaster</CODE></A>, 
<A HREF="../../../java/awt/image/SampleModel.html"><CODE>SampleModel</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="createCompatibleSampleModel(int, int)"><!-- --></A><H3>
createCompatibleSampleModel</H3>
<PRE>
public <A HREF="../../../java/awt/image/SampleModel.html">SampleModel</A> <B>createCompatibleSampleModel</B>(int&nbsp;w,
                                               int&nbsp;h)</PRE>
<DL>
<DD>Creates a <CODE>SampleModel</CODE> with the specified width and height, 
 that  has a data layout compatible with this <CODE>ColorModel</CODE>.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#createCompatibleSampleModel(int, int)">createCompatibleSampleModel</A></CODE> in class <CODE><A HREF="../../../java/awt/image/ColorModel.html">ColorModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>w</CODE> - The width of the <CODE>SampleModel</CODE> you want to create.<DD><CODE>h</CODE> - The height of the <CODE>SampleModel</CODE> you want to create.<DT><B>Returns:</B><DD>A <CODE>SampleModel</CODE> that is compatible with this
 <CODE>ColorModel</CODE>.<DT><B>See Also: </B><DD><A HREF="../../../java/awt/image/SampleModel.html"><CODE>SampleModel</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="isCompatibleSampleModel(java.awt.image.SampleModel)"><!-- --></A><H3>
isCompatibleSampleModel</H3>
<PRE>
public boolean <B>isCompatibleSampleModel</B>(<A HREF="../../../java/awt/image/SampleModel.html">SampleModel</A>&nbsp;sm)</PRE>
<DL>
<DD>Checks whether or not the specified <CODE>SampleModel</CODE> 
 is compatible with this <CODE>ColorModel</CODE>.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#isCompatibleSampleModel(java.awt.image.SampleModel)">isCompatibleSampleModel</A></CODE> in class <CODE><A HREF="../../../java/awt/image/ColorModel.html">ColorModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>sm</CODE> - The <CODE>SampleModel</CODE> to test for compatibility.<DT><B>Returns:</B><DD><CODE>true</CODE> if the <CODE>SampleModel</CODE> is 
 compatible with this <CODE>ColorModel</CODE>, <CODE>false</CODE> 
 if it is not.<DT><B>See Also: </B><DD><A HREF="../../../java/awt/image/SampleModel.html"><CODE>SampleModel</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getAlphaRaster(java.awt.image.WritableRaster)"><!-- --></A><H3>
getAlphaRaster</H3>
<PRE>
public <A HREF="../../../java/awt/image/WritableRaster.html">WritableRaster</A> <B>getAlphaRaster</B>(<A HREF="../../../java/awt/image/WritableRaster.html">WritableRaster</A>&nbsp;raster)</PRE>
<DL>
<DD>Returns a <CODE>Raster</CODE> representing the alpha channel of an image,
 extracted from the input <CODE>Raster</CODE>.
 This method assumes that <CODE>Raster</CODE> objects associated with 
 this <CODE>ColorModel</CODE> store the alpha band, if present, as 
 the last band of image data. Returns null if there is no separate spatial 
 alpha channel associated with this <CODE>ColorModel</CODE>.
 This method creates a new <CODE>Raster</CODE>, but will share the data
 array.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#getAlphaRaster(java.awt.image.WritableRaster)">getAlphaRaster</A></CODE> in class <CODE><A HREF="../../../java/awt/image/ColorModel.html">ColorModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>raster</CODE> - The <CODE>WritableRaster</CODE> from which to extract the 
 alpha  channel.<DT><B>Returns:</B><DD>A <CODE>WritableRaster</CODE> containing the image's alpha channel.</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(<A HREF="../../../java/lang/Object.html">Object</A>&nbsp;obj)</PRE>
<DL>
<DD>Compares this color model with another for equality.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#equals(java.lang.Object)">equals</A></CODE> in class <CODE><A HREF="../../../java/awt/image/ColorModel.html">ColorModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>obj</CODE> - The object to compare with this color model.<DT><B>Returns:</B><DD><CODE>true</CODE> if the color model objects are equal, 
 <CODE>false</CODE> if they are not.</DL>
</DD>
</DL>
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