1 files changed, 120 insertions, 0 deletions
diff --git a/src/main/java/org/pdfbox/pdmodel/common/PDMatrix.java b/src/main/java/org/pdfbox/pdmodel/common/PDMatrix.java
new file mode 100644
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+++ b/src/main/java/org/pdfbox/pdmodel/common/PDMatrix.java
@@ -0,0 +1,120 @@
+/**
+ * Copyright (c) 2004, www.pdfbox.org
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of pdfbox; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://www.pdfbox.org
+ *
+ */
+package org.pdfbox.pdmodel.common;
+
+import org.pdfbox.cos.COSArray;
+import org.pdfbox.cos.COSBase;
+import org.pdfbox.cos.COSFloat;
+import org.pdfbox.cos.COSNumber;
+
+/**
+ * This class will be used for matrix manipulation.
+ *
+ * @author Ben Litchfield (ben@csh.rit.edu)
+ * @version $Revision: 1.2 $
+ */
+public class PDMatrix implements Cloneable, COSObjectable
+{
+    private COSArray matrix;
+
+    /**
+     * Constructor.
+     */
+    public PDMatrix()
+    {
+        matrix = new COSArray();
+        matrix.add( new COSFloat( 1.0f ) );
+        matrix.add( new COSFloat( 0.0f ) );
+        matrix.add( new COSFloat( 0.0f ) );
+        matrix.add( new COSFloat( 0.0f ) );
+        matrix.add( new COSFloat( 1.0f ) );
+        matrix.add( new COSFloat( 0.0f ) );
+        matrix.add( new COSFloat( 0.0f ) );
+        matrix.add( new COSFloat( 0.0f ) );
+        matrix.add( new COSFloat( 1.0f ) );
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array The array that describes the matrix.
+     */
+    public PDMatrix( COSArray array )
+    {
+        matrix = array;
+    }
+
+    /**
+     * This will get the underlying array value.
+     *
+     * @return The cos object that this object wraps.
+     */
+    public COSArray getCOSArray()
+    {
+        return matrix;
+    }
+    
+    /**
+     * Convert this standard java object to a COS object.
+     *
+     * @return The cos object that matches this Java object.
+     */
+    public COSBase getCOSObject()
+    {
+        return matrix;
+    }
+    
+
+    /**
+     * This will get a matrix value at some point.
+     *
+     * @param row The row to get the value from.
+     * @param column The column to get the value from.
+     *
+     * @return The value at the row/column position.
+     */
+    public float getValue( int row, int column )
+    {
+        return ((COSNumber)matrix.get( row*3 + column )).floatValue();
+    }
+
+    /**
+     * This will set a value at a position.
+     *
+     * @param row The row to set the value at.
+     * @param column the column to set the value at.
+     * @param value The value to set at the position.
+     */
+    public void setValue( int row, int column, float value )
+    {
+        matrix.set( row*3+column, new COSFloat( value ) );
+    }
+}
+\ No newline at end of file