--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/m2g_qt/javasrc/org/w3c/dom/svg/SVGMatrix.java Fri Oct 15 12:29:39 2010 +0300
@@ -0,0 +1,129 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+package org.w3c.dom.svg;
+
+import org.w3c.dom.svg.SVGException;
+import org.w3c.dom.DOMException;
+
+/**
+ * This interface represents an "SVGMatrix" datatype, identified by an affine transform.
+ * It can be used to read and modify the values of transform attribute as per SVG specification.
+ * Note that the mTranslate, mMultiply, mScale and mRotate methods in this interface
+ * mutate the SVGMatrix object and return a reference to the SVGMatrix instance itself, after
+ * performing the necessary matrix operation.
+ * <p>This matrix transforms source coordinates (x, y) into destination coordinates (x', y') by
+ * considering them to be a column vector and multiplying the coordinate vector by the matrix
+ * according to the following process:</p>
+ *
+ * <p>
+ * <pre>
+ * [ x' ] [ a c e ] [ x ] [ a.x + c.y + e ]
+ * [ y' ] = [ b d f ] [ y ] = [ b.x + d.y + f ]
+ * [ 1 ] [ 0 0 1 ] [ 1 ] [ 1 ]
+ * </pre>
+ * </p>
+ */
+public interface SVGMatrix
+{
+
+ /**
+ * Returns a component of the matrix by component's zero-based index. <code>getComponent(0)</code> is a, <code>getComponent(1)</code> is b, etc.
+ *
+ * @param index the index of the matrix component to retrieve.
+ * @return the component for the specified index.
+ * @throws DOMException - INDEX_SIZE_ERR if the <code>index</code> is invalid.
+ */
+ public float getComponent(int index)
+ throws DOMException;
+
+ /**
+ * Performs matrix multiplication. This matrix is post-multiplied by another matrix, returning the resulting current matrix.
+ *
+ * @param secondMatrix the matrix to post-multiply with.
+ * @return the resulting current matrix after post-multiplication.
+ * @throws NullPointerException - if secondMatrix is null.
+ */
+ public SVGMatrix mMultiply(SVGMatrix secondMatrix);
+
+ /**
+ * Returns a new instance of SVGMatrix containing the inverse of the current matrix.
+ *
+ * @return the inverse of the current matrix.
+ * @throws SVGException - SVG_MATRIX_NOT_INVERTABLE when determinant of this matrix is zero.
+ */
+ public SVGMatrix inverse()
+ throws SVGException;
+
+ /**
+ * Post-multiplies a translation transformation on the current matrix and returns the resulting current matrix.
+ * This is equivalent to calling <code>multiply(T)</code>, where <code>T</code> is an
+ * <code>SVGMatrix</code> object represented by the following
+ * matrix:
+ *
+ * <p>
+ * <pre>
+ * [ 1 0 x ]
+ * [ 0 1 y ]
+ * [ 0 0 1 ]
+ * </pre>
+ * </p>
+ *
+ * @param x the distance by which coordinates are translated
+ * in the X axis direction.
+ * @param y the distance by which coordinates are translated
+ * in the Y axis direction.
+ * @return the resulting current matrix after post-multiplication.
+ */
+ public SVGMatrix mTranslate(float x, float y);
+
+ /**
+ * Post-multiplies a uniform scale transformation on the current matrix and returns the resulting current matrix.
+ * This is equivalent to calling <code>multiply(S)</code>, where <code>S</code> is an <code>SVGMatrix</code>
+ * object represented by the following matrix:
+ *
+ * <p>
+ * <pre>
+ * [ scaleFactor 0 0 ]
+ * [ 0 scaleFactor 0 ]
+ * [ 0 0 1 ]
+ * </pre>
+ * </p>
+ *
+ * @param scaleFactor the factor by which coordinates are scaled along the
+ * X and Y axis.
+ * @return the resulting current matrix after post-mutiplication.
+ */
+ public SVGMatrix mScale(float scaleFactor);
+
+ /**
+ * Post-multiplies a rotation transformation on the current matrix and returns the resulting current matrix.
+ * This is equivalent to calling <code>multiply(R)</code>, where <code>R</code> is an
+ * <code>SVGMatrix</code> object represented by the following matrix:
+ *
+ * <p>
+ * <pre>
+ * [ cos(angle) -sin(angle) 0 ]
+ * [ sin(angle) cos(angle) 0 ]
+ * [ 0 0 1 ]
+ * </pre>
+ * </p>
+ *
+ * @param angle the angle of rotation in degrees.
+ * @return the resulting current matrix after post-multiplication.
+ */
+ public SVGMatrix mRotate(float angle);
+}