-/*-- $Id$ --
+/*-- $Id$ --
============================================================================
The Apache Software License, Version 1.1
============================================================================
-
+
Copyright (C) 1999 The Apache Software Foundation. All rights reserved.
-
+
Redistribution and use in source and binary forms, with or without modifica-
tion, 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. The end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
-
+
4. The names "Fop" and "Apache Software Foundation" must not be used to
endorse or promote products derived from this software without prior
written permission. For written permission, please contact
apache@apache.org.
-
+
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
-
+
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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
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.
-
+
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation and was originally created by
- James Tauber <jtauber@jtauber.com>. For more information on the Apache
+ James Tauber <jtauber@jtauber.com>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
-
+
*/
package org.apache.fop.dom.svg;
import org.w3c.dom.svg.*;
/**
- *
+ * @author Keiron Liddle <keiron@aftexsw.com>
*/
public class SVGMatrixImpl implements SVGMatrix {
- float a = 1.0f;
- float b = 0.0f;
- float c = 0.0f;
- float d = 1.0f;
- float e = 0.0f;
- float f = 0.0f;
-
- public SVGMatrixImpl()
- {
- }
-
- public float getA( )
- {
- return a;
- }
-
- public void setA( float a )
- {
- this.a = a;
- }
-
- public float getB( )
- {
- return b;
- }
-
- public void setB( float b )
- {
- this.b = b;
- }
-
- public float getC( )
- {
- return c;
- }
-
- public void setC( float c )
- {
- this.c = c;
- }
-
- public float getD( )
- {
- return d;
- }
-
- public void setD( float d )
- {
- this.d = d;
- }
-
- public float getE( )
- {
- return e;
- }
-
- public void setE( float e )
- {
- this.e = e;
- }
-
- public float getF( )
- {
- return f;
- }
-
- public void setF( float f )
- {
- this.f = f;
- }
-
- public SVGMatrix multiply ( SVGMatrix secondMatrix )
- throws SVGException
- {
- SVGMatrix mat = new SVGMatrixImpl();
- mat.setA(a * secondMatrix.getA() + b * secondMatrix.getC());
- mat.setB(a * secondMatrix.getB() + b * secondMatrix.getD());
- mat.setC(c * secondMatrix.getA() + d * secondMatrix.getC());
- mat.setD(c * secondMatrix.getB() + d * secondMatrix.getD());
- // e,f?
- mat.setE(e + secondMatrix.getE());
- mat.setF(f + secondMatrix.getF());
- return mat;
- }
-
- public SVGMatrix inverse ( )
- throws SVGException
- {
- SVGMatrix mat = new SVGMatrixImpl();
- double det = Math.abs(a * d - b * c);
- if(det == 0) {
- // throw exception
- throw new SVGExceptionImpl(SVGException.SVG_MATRIX_NOT_INVERTABLE, "Matrix: " + toString() + " could not be inverted");
- }
- mat.setA((float)(d / det));
- mat.setB((float)(b / det));
- mat.setC((float)(-c / det));
- mat.setD((float)(a / det));
- // e,f?
- mat.setE(-e);
- mat.setF(-f);
- return mat;
- }
-
-/* switch(t.getType()) {
- case SVGTransform.SVG_TRANSFORM_SCALE:
- {
- // to scale around the svg origin
- // we need to translate before and after
-// Float len = (Float)t.getValue();
-// float val = len.floatValue();
-// if(Math.abs(val) < 0.001)
-// val = 0;
-// currentStream.add("1 0 0 1 " + -posx / 1000f + " " + posy / 1000f + " cm\n");
-// currentStream.add(val + " 0 0 " + val + " 0 0 cm\n");
-// currentStream.add("1 0 0 1 " + posx / 1000f + " " + -posy / 1000f + " cm\n");
- }
- break;
- case SVGTransform.SVG_TRANSFORM_ROTATE:
- {
- // to rotate around the svg origin
- // we need to translate before and after
-// SVGLength len = (SVGLength)t.getValue();
-// float val = len.getValue();
-// float cosval = (float)Math.cos(val * Math.PI / 90f);
-// if(Math.abs(cosval) < 0.001)
-// cosval = 0;
-// float sinval = (float)Math.sin(val * Math.PI / 90f);
-// if(Math.abs(sinval) < 0.001)
-// sinval = 0;
-// currentStream.add("1 0 0 1 " + -posx / 1000f + " " + posy / 1000f + " cm\n");
-// currentStream.add(cosval
-// + " " + sinval
-// + " " + -sinval
-// + " " + cosval
-// + " 0 0 cm\n");
-// currentStream.add("1 0 0 1 " + posx / 1000f + " " + -posy / 1000f + " cm\n");
- }
- break;
- }*/
-
- public SVGMatrix translate ( float x, float y )
- throws SVGException
- {
- SVGMatrix matrix = new SVGMatrixImpl();
- matrix.setA(a);
- matrix.setB(b);
- matrix.setC(c);
- matrix.setD(d);
- matrix.setE(e + x);
- matrix.setF(f + y);
- return matrix;
- }
-
- public SVGMatrix scale(float scaleFactor)
- throws SVGException
- {
- SVGMatrix matrix = new SVGMatrixImpl();
- matrix.setA(a * scaleFactor);
- matrix.setB(b);
- matrix.setC(c);
- matrix.setD(d * scaleFactor);
- matrix.setE(e);
- matrix.setF(f);
- return matrix;
- }
-
- public SVGMatrix scaleNonUniform(float scaleFactorX, float scaleFactorY)
- throws SVGException
- {
- SVGMatrix matrix = new SVGMatrixImpl();
- matrix.setA(a * scaleFactorX);
- matrix.setB(b);
- matrix.setC(c);
- matrix.setD(d * scaleFactorY);
- matrix.setE(e);
- matrix.setF(f);
- return matrix;
- }
-
- public SVGMatrix rotate ( float angle )
- throws SVGException
- {
- angle = (float)(angle * Math.PI / 180f);
- SVGMatrix matrix = new SVGMatrixImpl();
- matrix.setA((float)Math.cos(angle));
- matrix.setB((float)Math.sin(angle));
- matrix.setC((float)-Math.sin(angle));
- matrix.setD((float)Math.cos(angle));
- return multiply(matrix);
- }
-
- public SVGMatrix rotateFromVector(float x, float y) throws SVGException
- {
- return null;
- }
-
- public SVGMatrix flipX()
- {
- return null;
- }
-
- public SVGMatrix flipY()
- {
- return null;
- }
-
- public SVGMatrix skewX(float angle) throws SVGException
- {
- SVGMatrix matrix = new SVGMatrixImpl();
- matrix.setA(1);
- matrix.setB(0);
- matrix.setC((float)Math.sin(angle));
- matrix.setD(1);
- return multiply(matrix);
- }
-
- public SVGMatrix skewY(float angle) throws SVGException
- {
- SVGMatrix matrix = new SVGMatrixImpl();
- matrix.setA(1);
- matrix.setB((float)Math.sin(angle));
- matrix.setC(0);
- matrix.setD(1);
- return multiply(matrix);
- }
-
- public String toString()
- {
- return "[" + getA() + " " + getB() + " " + getC()
- + " " + getD() + " " + getE() + " " + getF() + "]";
- }
+ float a = 1.0f;
+ float b = 0.0f;
+ float c = 0.0f;
+ float d = 1.0f;
+ float e = 0.0f;
+ float f = 0.0f;
+
+ public SVGMatrixImpl() {
+ }
+
+ public float getA() {
+ return a;
+ }
+
+ public void setA(float a) {
+ this.a = a;
+ }
+
+ public float getB() {
+ return b;
+ }
+
+ public void setB(float b) {
+ this.b = b;
+ }
+
+ public float getC() {
+ return c;
+ }
+
+ public void setC(float c) {
+ this.c = c;
+ }
+
+ public float getD() {
+ return d;
+ }
+
+ public void setD(float d) {
+ this.d = d;
+ }
+
+ public float getE() {
+ return e;
+ }
+
+ public void setE(float e) {
+ this.e = e;
+ }
+
+ public float getF() {
+ return f;
+ }
+
+ public void setF(float f) {
+ this.f = f;
+ }
+
+ public SVGMatrix multiply (SVGMatrix secondMatrix) throws SVGException {
+ SVGMatrix mat = new SVGMatrixImpl();
+ mat.setA(a * secondMatrix.getA() + b * secondMatrix.getC());
+ mat.setB(a * secondMatrix.getB() + b * secondMatrix.getD());
+ mat.setC(c * secondMatrix.getA() + d * secondMatrix.getC());
+ mat.setD(c * secondMatrix.getB() + d * secondMatrix.getD());
+ // e,f?
+ mat.setE(a * e + c * f + secondMatrix.getE());
+ mat.setF(b * f + d * f + secondMatrix.getF());
+ return mat;
+ }
+
+ public SVGMatrix inverse () throws SVGException {
+ SVGMatrix mat = new SVGMatrixImpl();
+ double det = Math.abs(a * d - b * c);
+ if (det == 0) {
+ // throw exception
+ throw new SVGExceptionImpl(
+ SVGException.SVG_MATRIX_NOT_INVERTABLE,
+ "Matrix: " + toString() + " could not be inverted");
+ }
+ mat.setA((float)(d / det));
+ mat.setB((float)(b / det));
+ mat.setC((float)(-c / det));
+ mat.setD((float)(a / det));
+ // e,f?
+ mat.setE(-e);
+ mat.setF(-f);
+ return mat;
+ }
+
+ public SVGMatrix translate (float x, float y) throws SVGException {
+ SVGMatrix matrix = new SVGMatrixImpl();
+ matrix.setA(a);
+ matrix.setB(b);
+ matrix.setC(c);
+ matrix.setD(d);
+ matrix.setE(e + x);
+ matrix.setF(f + y);
+ return matrix;
+ }
+
+ public SVGMatrix scale(float scaleFactor) throws SVGException {
+ SVGMatrix matrix = new SVGMatrixImpl();
+ matrix.setA(a * scaleFactor);
+ matrix.setB(b);
+ matrix.setC(c);
+ matrix.setD(d * scaleFactor);
+ matrix.setE(e);
+ matrix.setF(f);
+ return matrix;
+ }
+
+ public SVGMatrix scaleNonUniform(float scaleFactorX,
+ float scaleFactorY) throws SVGException {
+ SVGMatrix matrix = new SVGMatrixImpl();
+ matrix.setA(a * scaleFactorX);
+ matrix.setB(b);
+ matrix.setC(c);
+ matrix.setD(d * scaleFactorY);
+ matrix.setE(e);
+ matrix.setF(f);
+ return matrix;
+ }
+
+ public SVGMatrix rotate (float angle) throws SVGException {
+ angle = (float)(angle * Math.PI / 180f);
+ SVGMatrix matrix = new SVGMatrixImpl();
+ matrix.setA((float) Math.cos(angle));
+ matrix.setB((float) Math.sin(angle));
+ matrix.setC((float) - Math.sin(angle));
+ matrix.setD((float) Math.cos(angle));
+ return multiply(matrix);
+ }
+
+ public SVGMatrix rotateFromVector(float x,
+ float y) throws SVGException {
+ return null;
+ }
+
+ public SVGMatrix flipX() {
+ return null;
+ }
+
+ public SVGMatrix flipY() {
+ return null;
+ }
+
+ public SVGMatrix skewX(float angle) throws SVGException {
+ angle = (float)(angle * Math.PI / 180f);
+
+ SVGMatrix matrix = new SVGMatrixImpl();
+ matrix.setA(1);
+ matrix.setB(0);
+ matrix.setC((float) Math.tan(angle));
+ matrix.setD(1);
+ return multiply(matrix);
+ }
+
+ public SVGMatrix skewY(float angle) throws SVGException {
+ angle = (float)(angle * Math.PI / 180f);
+
+ SVGMatrix matrix = new SVGMatrixImpl();
+ matrix.setA(1);
+ matrix.setB((float) Math.tan(angle));
+ matrix.setC(0);
+ matrix.setD(1);
+ return multiply(matrix);
+ }
+
+ public String toString() {
+ return "[" + getA() + " " + getB() + " " + getC() + " " +
+ getD() + " " + getE() + " " + getF() + "]";
+ }
}
projects / xmlgraphics-fop.git / commitdiff