indexcolormodel.html

API資料大全

<DL>
<DD>Returns the alpha component for the specified pixel, scaled
 from 0 to 255.  The pixel value is specified as an int.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#getAlpha(int)">getAlpha</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>pixel</CODE> - the specified pixel<DT><B>Returns:</B><DD>the value of the alpha component for the specified pixel</DL>
</DD>
</DL>
<HR>

<A NAME="getRGB(int)"><!-- --></A><H3>
getRGB</H3>
<PRE>
public final int <B>getRGB</B>(int&nbsp;pixel)</PRE>
<DL>
<DD>Returns the color/alpha components of the pixel in the default
 RGB color model format.  The pixel value is specified as an int.
 The returned value is in a non pre-multiplied format.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#getRGB(int)">getRGB</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>pixel</CODE> - the specified pixel<DT><B>Returns:</B><DD>the color and alpha components of the specified pixel<DT><B>See Also: </B><DD><A HREF="../../../java/awt/image/ColorModel.html#getRGBdefault()"><CODE>ColorModel.getRGBdefault()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getDataElements(int, java.lang.Object)"><!-- --></A><H3>
getDataElements</H3>
<PRE>
public <A HREF="../../../java/lang/Object.html">Object</A> <B>getDataElements</B>(int&nbsp;rgb,
                              <A HREF="../../../java/lang/Object.html">Object</A>&nbsp;pixel)</PRE>
<DL>
<DD>Returns a data element array representation of a pixel in this
 ColorModel, given an integer pixel representation in the
 default RGB color model.  This array can then be passed to the 
 <A HREF="../../../java/awt/image/WritableRaster.html#setDataElements(int, int, java.lang.Object)"><CODE>setDataElements</CODE></A>
 method of a <A HREF="../../../java/awt/image/WritableRaster.html"><CODE>WritableRaster</CODE></A> object.  If the pixel variable is 
 <code>null</code>, a new array is allocated.  If <code>pixel</code>
 is not <code>null</code>, it must be
 a primitive array of type <code>transferType</code>; otherwise, a
 <code>ClassCastException</code> is thrown.  An 
 <code>ArrayIndexOutOfBoundsException</code> is
 thrown if <code>pixel</code> is not large enough to hold a pixel 
 value for this <code>ColorModel</code>.  The pixel array is returned.
 <p>
 Since <code>IndexColorModel</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#getDataElements(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>rgb</CODE> - the integer pixel representation in the default RGB
 color model<DD><CODE>pixel</CODE> - the specified pixel<DT><B>Returns:</B><DD>an array representation of the specified pixel in this
  <code>IndexColorModel</code>.<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/ClassCastException.html">ClassCastException</A></CODE> - if <code>pixel</code>
  is not a primitive array of type <code>transferType</code><DD><CODE><A HREF="../../../java/lang/ArrayIndexOutOfBoundsException.html">ArrayIndexOutOfBoundsException</A></CODE> - if
  <code>pixel</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 <code>transferType</code>
         is invalid<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="getComponents(int, int[], int)"><!-- --></A><H3>
getComponents</H3>
<PRE>
public int[] <B>getComponents</B>(int&nbsp;pixel,
                           int[]&nbsp;components,
                           int&nbsp;offset)</PRE>
<DL>
<DD>Returns an array of unnormalized color/alpha components for a 
 specified pixel in this <code>ColorModel</code>.  The pixel value 
 is specified as an int.  If the components array is <code>null</code>, 
 a new array is allocated.  The components array is returned.  
 Color/alpha components are stored in the components array starting 
 at <code>offset</code> even if the array is allocated by this method.  
 An <code>ArrayIndexOutOfBoundsException</code>
 is thrown if  the components array is not <code>null</code> and is 
 not large enough to hold all the color and alpha components 
 starting at <code>offset</code>.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#getComponents(int, int[], int)">getComponents</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>pixel</CODE> - the specified pixel<DD><CODE>components</CODE> - the array to receive the color and alpha
 components of the specified pixel<DD><CODE>offset</CODE> - the offset into the <code>components</code> array at
 which to start storing the color and alpha components<DT><B>Returns:</B><DD>an array containing the color and alpha components of the
 specified pixel starting at the specified offset.</DL>
</DD>
</DL>
<HR>

<A NAME="getComponents(java.lang.Object, int[], int)"><!-- --></A><H3>
getComponents</H3>
<PRE>
public int[] <B>getComponents</B>(<A HREF="../../../java/lang/Object.html">Object</A>&nbsp;pixel,
                           int[]&nbsp;components,
                           int&nbsp;offset)</PRE>
<DL>
<DD>Returns an array of unnormalized color/alpha components for
 a specified pixel in this <code>ColorModel</code>.  The pixel 
 value is specified by an array of data elements of type 
 <code>transferType</code> passed in as an object reference.
 If <code>pixel</code> is not a primitive array of type 
 <code>transferType</code>, a <code>ClassCastException</code>
 is thrown.  An <code>ArrayIndexOutOfBoundsException</code>
 is thrown if <code>pixel</code> is not large enough to hold 
 a pixel value for this <code>ColorModel</code>.  If the 
 <code>components</code> array is <code>null</code>, a new array 
 is allocated.  The <code>components</code> array is returned.  
 Color/alpha components are stored in the <code>components</code> 
 array starting at <code>offset</code> even if the array is
 allocated by this method.  An 
 <code>ArrayIndexOutOfBoundsException</code> is also
 thrown if  the <code>components</code> array is not 
 <code>null</code> and is not large enough to hold all the color 
 and alpha components starting at <code>offset</code>.  
 <p>
 Since <code>IndexColorModel</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#getComponents(java.lang.Object, int[], int)">getComponents</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>pixel</CODE> - the specified pixel<DD><CODE>components</CODE> - an array that receives the color and alpha  
 components of the specified pixel<DD><CODE>offset</CODE> - the index into the <code>components</code> array at
 which to begin storing the color and alpha components of the
 specified pixel<DT><B>Returns:</B><DD>an array containing the color and alpha components of the
 specified pixel starting at the specified offset.<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/ArrayIndexOutOfBoundsException.html">ArrayIndexOutOfBoundsException</A></CODE> - if <code>pixel</code>
            is not large enough to hold a pixel value for this
            <code>ColorModel</code> or if the 
            <code>components</code> array is not <code>null</code> 
            and is not large enough to hold all the color 
            and alpha components starting at <code>offset</code><DD><CODE><A HREF="../../../java/lang/ClassCastException.html">ClassCastException</A></CODE> - if <code>pixel</code> is not a 
            primitive array of type <code>transferType</code><DD><CODE><A HREF="../../../java/lang/UnsupportedOperationException.html">UnsupportedOperationException</A></CODE> - if <code>transferType</code>
         is not one of the supported transer types</DL>
</DD>
</DL>
<HR>

<A NAME="getDataElement(int[], int)"><!-- --></A><H3>
getDataElement</H3>
<PRE>
public int <B>getDataElement</B>(int[]&nbsp;components,
                          int&nbsp;offset)</PRE>
<DL>
<DD>Returns a pixel value represented as an int in this 
 <code>ColorModel</code> given an array of unnormalized 
 color/alpha components.  An 
 <code>ArrayIndexOutOfBoundsException</code> 
 is thrown if the <code>components</code> array is not large 
 enough to hold all of the color and alpha components starting
 at <code>offset</code>.  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 transferType.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#getDataElement(int[], int)">getDataElement</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 and alpha
 components<DD><CODE>offset</CODE> - the index into <code>components</code> at which to
 begin retrieving the color and alpha components<DT><B>Returns:</B><DD>an <code>int</code> pixel value in this
 <code>ColorModel</code> corresponding to the specified components.<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/ArrayIndexOutOfBoundsException.html">ArrayIndexOutOfBoundsException</A></CODE> - if
  the <code>components</code> array is not large enough to
  hold all of the color and alpha components starting at
  <code>offset</code><DD><CODE><A HREF="../../../java/lang/UnsupportedOperationException.html">UnsupportedOperationException</A></CODE> - if <code>transferType</code>
         is invalid</DL>
</DD>
</DL>
<HR>

<A NAME="getDataElements(int[], int, java.lang.Object)"><!-- --></A><H3>
getDataElements</H3>
<PRE>
public <A HREF="../../../java/lang/Object.html">Object</A> <B>getDataElements</B>(int[]&nbsp;components,
                              int&nbsp;offset,
                              <A HREF="../../../java/lang/Object.html">Object</A>&nbsp;pixel)</PRE>
<DL>
<DD>Returns a data element array representation of a pixel in this
 <code>ColorModel</code> given an array of unnormalized color/alpha 
 components.  This array can then be passed to the 
 <code>setDataElements</code> method of a <code>WritableRaster</code> 
 object.  An <code>ArrayIndexOutOfBoundsException</code> is 
 thrown if the 
 <code>components</code> array is not large enough to hold all of the 
 color and alpha components starting at <code>offset</code>.  
 If the pixel variable is <code>null</code>, a new array
 is allocated.  If <code>pixel</code> is not <code>null</code>, 
 it must be a primitive array of type <code>transferType</code>; 
 otherwise, a <code>ClassCastException</code> is thrown.
 An <code>ArrayIndexOutOfBoundsException</code> is thrown if pixel 
 is not large enough to hold a pixel value for this
 <code>ColorModel</code>.
 <p>
 Since <code>IndexColorModel</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#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 and alpha
 components<DD><CODE>offset</CODE> - the index into <code>components</code> at which to
 begin retrieving color and alpha components<DD><CODE>pixel</CODE> - the <code>Object</code> representing an array of color
 and alpha components<DT><B>Returns:</B><DD>an <code>Object</code> representing an array of color and
 alpha components.<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/ClassCastException.html">ClassCastException</A></CODE> - if <code>pixel</code>
  is not a primitive array of type <code>transferType</code><DD><CODE><A HREF="../../../java/lang/ArrayIndexOutOfBoundsException.html">ArrayIndexOutOfBoundsException</A></CODE> - if 
  <code>pixel</code> is not large enough to hold a pixel value
  for this <code>ColorModel</code> or the <code>components</code>
  array is not large enough to hold all of the color and alpha
  components starting at <code>offset</code><DD><CODE><A HREF="../../../java/lang/UnsupportedOperationException.html">UnsupportedOperationException</A></CODE> - if <code>transferType</code>
         is not one of the supported transer types<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="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>.  This method
 only works for color models with 16 or fewer bits per pixel.
 <p>
 Since <code>IndexColorModel</code> can be subclassed, any 
 subclass that supports greater than 16 bits per pixel must
 override this method.<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 to apply to the new <code>WritableRaster</code><DD><CODE>h</CODE> - the height to apply to the new <code>WritableRaster</code><DT><B>Returns:</B><DD>a <code>WritableRaster</code> object with the specified
 width and height.<DT><B>Throws:</B><DD><CODE><A HREF="../../../j