"Fossies" - the Fresh Open Source Software Archive  

Source code changes of the file "pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/shading/PDShadingType5.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.

PDShadingType5.java  (pdfbox-2.0.23-src)	:	PDShadingType5.java  (pdfbox-2.0.24-src)
skipping to change at line 20		skipping to change at line 20
*		*
* Unless required by applicable law or agreed to in writing, software		* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,		* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and		* See the License for the specific language governing permissions and
* limitations under the License.		* limitations under the License.
*/		*/
package org.apache.pdfbox.pdmodel.graphics.shading;		package org.apache.pdfbox.pdmodel.graphics.shading;
import java.awt.Paint;		import java.awt.Paint;
		import java.awt.geom.AffineTransform;
		import java.awt.geom.Point2D;
		import java.io.EOFException;
		import java.io.IOException;
		import java.util.ArrayList;
		import java.util.Collections;
		import java.util.List;
		import javax.imageio.stream.ImageInputStream;
		import javax.imageio.stream.MemoryCacheImageInputStream;
import org.apache.pdfbox.cos.COSDictionary;		import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;		import org.apache.pdfbox.cos.COSName;
		import org.apache.pdfbox.cos.COSStream;
		import org.apache.pdfbox.pdmodel.common.PDRange;
import org.apache.pdfbox.util.Matrix;		import org.apache.pdfbox.util.Matrix;
/**		/**
* Resources for a shading type 5 (Lattice-Form Gouraud-Shade Triangle Mesh).		* Resources for a shading type 5 (Lattice-Form Gouraud-Shade Triangle Mesh).
*/		*/
public class PDShadingType5 extends PDTriangleBasedShadingType		public class PDShadingType5 extends PDTriangleBasedShadingType
{		{
/**		/**
* Constructor using the given shading dictionary.		* Constructor using the given shading dictionary.
*		*
skipping to change at line 72		skipping to change at line 84
public void setVerticesPerRow(int verticesPerRow)		public void setVerticesPerRow(int verticesPerRow)
{		{
getCOSObject().setInt(COSName.VERTICES_PER_ROW, verticesPerRow);		getCOSObject().setInt(COSName.VERTICES_PER_ROW, verticesPerRow);
}		}
@Override		@Override
public Paint toPaint(Matrix matrix)		public Paint toPaint(Matrix matrix)
{		{
return new Type5ShadingPaint(this, matrix);		return new Type5ShadingPaint(this, matrix);
}		}
		@SuppressWarnings("squid:S1166")
		@Override
		List<ShadedTriangle> collectTriangles(AffineTransform xform, Matrix matrix)
		throws IOException
		{
		COSDictionary dict = getCOSObject();
		if (!(dict instanceof COSStream))
		{
		return Collections.emptyList();
		}
		PDRange rangeX = getDecodeForParameter(0);
		PDRange rangeY = getDecodeForParameter(1);
		if (Float.compare(rangeX.getMin(), rangeX.getMax()) == 0 ||
		Float.compare(rangeY.getMin(), rangeY.getMax()) == 0)
		{
		return Collections.emptyList();
		}
		int numPerRow = getVerticesPerRow();
		PDRange[] colRange = new PDRange[getNumberOfColorComponents()];
		for (int i = 0; i < colRange.length; ++i)
		{
		colRange[i] = getDecodeForParameter(2 + i);
		}
		List<Vertex> vlist = new ArrayList<Vertex>();
		long maxSrcCoord = (long) Math.pow(2, getBitsPerCoordinate()) - 1;
		long maxSrcColor = (long) Math.pow(2, getBitsPerComponent()) - 1;
		COSStream cosStream = (COSStream) dict;
		ImageInputStream mciis = new MemoryCacheImageInputStream(cosStream.creat
		eInputStream());
		try
		{
		boolean eof = false;
		while (!eof)
		{
		Vertex p;
		try
		{
		p = readVertex(mciis, maxSrcCoord, maxSrcColor, rangeX, rang
		eY, colRange, matrix, xform);
		vlist.add(p);
		}
		catch (EOFException ex)
		{
		eof = true;
		}
		}
		}
		finally
		{
		mciis.close();
		}
		int rowNum = vlist.size() / numPerRow;
		Vertex[][] latticeArray = new Vertex[rowNum][numPerRow];
		List<ShadedTriangle> list = new ArrayList<ShadedTriangle>();
		if (rowNum < 2)
		{
		// must have at least two rows; if not, return empty list
		return list;
		}
		for (int i = 0; i < rowNum; i++)
		{
		for (int j = 0; j < numPerRow; j++)
		{
		latticeArray[i][j] = vlist.get(i * numPerRow + j);
		}
		}
		Point2D[] ps = new Point2D[3]; // array will be shallow-cloned in Shaded
		Triangle constructor
		float[][] cs = new float[3][];
		for (int i = 0; i < rowNum - 1; i++)
		{
		for (int j = 0; j < numPerRow - 1; j++)
		{
		ps[0] = latticeArray[i][j].point;
		ps[1] = latticeArray[i][j + 1].point;
		ps[2] = latticeArray[i + 1][j].point;
		cs[0] = latticeArray[i][j].color;
		cs[1] = latticeArray[i][j + 1].color;
		cs[2] = latticeArray[i + 1][j].color;
		list.add(new ShadedTriangle(ps, cs));
		ps[0] = latticeArray[i][j + 1].point;
		ps[1] = latticeArray[i + 1][j].point;
		ps[2] = latticeArray[i + 1][j + 1].point;
		cs[0] = latticeArray[i][j + 1].color;
		cs[1] = latticeArray[i + 1][j].color;
		cs[2] = latticeArray[i + 1][j + 1].color;
		list.add(new ShadedTriangle(ps, cs));
		}
		}
		return list;
		}
}		}
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