"Fossies" - the Fresh Open Source Software Archive  

Source code changes of the file "pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/shading/TriangleBasedShadingContext.java" between
pdfbox-2.0.23-src.zip and pdfbox-2.0.24-src.zip

About: Apache PDFBox is a Java PDF library tool that allows creation of new PDF documents, manipulation of existing documents and the ability to extract content from documents.

TriangleBasedShadingContext.java  (pdfbox-2.0.23-src)	:	TriangleBasedShadingContext.java  (pdfbox-2.0.24-src)
skipping to change at line 28		skipping to change at line 28
import java.awt.PaintContext;		import java.awt.PaintContext;
import java.awt.Point;		import java.awt.Point;
import java.awt.Rectangle;		import java.awt.Rectangle;
import java.awt.geom.AffineTransform;		import java.awt.geom.AffineTransform;
import java.awt.image.ColorModel;		import java.awt.image.ColorModel;
import java.awt.image.Raster;		import java.awt.image.Raster;
import java.awt.image.WritableRaster;		import java.awt.image.WritableRaster;
import java.io.IOException;		import java.io.IOException;
import java.util.List;		import java.util.List;
import java.util.Map;		import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.pdfbox.util.Matrix;		import org.apache.pdfbox.util.Matrix;
/**		/**
* Intermediate class extended by the shading types 4,5,6 and 7 that contains th e common methods		* Intermediate class extended by the shading types 4,5,6 and 7 that contains th e common methods
* used by these classes.		* used by these classes.
*		*
* @author Shaola Ren		* @author Shaola Ren
* @author Tilman Hausherr		* @author Tilman Hausherr
*/		*/
abstract class TriangleBasedShadingContext extends ShadingContext implements Pai ntContext		abstract class TriangleBasedShadingContext extends ShadingContext implements Pai ntContext
{		{
private static final Log LOG = LogFactory.getLog(TriangleBasedShadingContext
.class);
protected int bitsPerCoordinate;
protected int bitsPerColorComponent;
protected int numberOfColorComponents;
private final boolean hasFunction;
// map of pixels within triangles to their RGB color		// map of pixels within triangles to their RGB color
private Map<Point, Integer> pixelTable;		private Map<Point, Integer> pixelTable;
/**		/**
* Constructor.		* Constructor.
*		*
* @param shading the shading type to be used		* @param shading the shading type to be used
* @param cm the color model to be used		* @param cm the color model to be used
* @param xform transformation for user to device space		* @param xform transformation for user to device space
* @param matrix the pattern matrix concatenated with that of the parent con tent stream		* @param matrix the pattern matrix concatenated with that of the parent con tent stream
* @throws IOException if there is an error getting the color space or doing background color conversion.		* @throws IOException if there is an error getting the color space or doing background color conversion.
*/		*/
TriangleBasedShadingContext(PDShading shading, ColorModel cm, AffineTransfor m xform,		TriangleBasedShadingContext(PDShading shading, ColorModel cm, AffineTransfor m xform,
Matrix matrix) throws IOException		Matrix matrix) throws IOException
{		{
super(shading, cm, xform, matrix);		super(shading, cm, xform, matrix);
PDTriangleBasedShadingType triangleBasedShadingType = (PDTriangleBasedSh
adingType) shading;
hasFunction = shading.getFunction() != null;
bitsPerCoordinate = triangleBasedShadingType.getBitsPerCoordinate();
LOG.debug("bitsPerCoordinate: " + (Math.pow(2, bitsPerCoordinate) - 1));
bitsPerColorComponent = triangleBasedShadingType.getBitsPerComponent();
LOG.debug("bitsPerColorComponent: " + bitsPerColorComponent);
numberOfColorComponents = hasFunction ? 1 : getShadingColorSpace().getNu
mberOfComponents();
LOG.debug("numberOfColorComponents: " + numberOfColorComponents);
}		}
/**		/**
* Creates the pixel table.		* Creates the pixel table.
*/		*/
protected final void createPixelTable(Rectangle deviceBounds) throws IOExcep tion		protected final void createPixelTable(Rectangle deviceBounds) throws IOExcep tion
{		{
pixelTable = calcPixelTable(deviceBounds);		pixelTable = calcPixelTable(deviceBounds);
}		}
skipping to change at line 159		skipping to change at line 142
}		}
}		}
}		}
/**		/**
* Convert color to RGB color value, using function if required, then conver t from the shading		* Convert color to RGB color value, using function if required, then conver t from the shading
* color space to an RGB value, which is encoded into an integer.		* color space to an RGB value, which is encoded into an integer.
*/		*/
private int evalFunctionAndConvertToRGB(float[] values) throws IOException		private int evalFunctionAndConvertToRGB(float[] values) throws IOException
{		{
if (hasFunction)		if (getShading().getFunction() != null)
{		{
values = getShading().evalFunction(values);		values = getShading().evalFunction(values);
}		}
return convertToRGB(values);		return convertToRGB(values);
}		}
/**		/**
* Returns true if the shading has an empty data stream.		* Returns true if the shading has an empty data stream.
*/		*/
abstract boolean isDataEmpty();		abstract boolean isDataEmpty();
End of changes. 4 change blocks.
22 lines changed or deleted		2 lines changed or added

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