File indexing completed on 2024-04-28 11:39:23

 /*
     Copyright (C) 2004, 2005 Nikolas Zimmermann <wildfox@kde.org>
                   2004, 2005 Rob Buis <buis@kde.org>
 
     This file is part of the KDE project
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Library General Public License for more details.
 
     You should have received a copy of the GNU Library General Public License
     along with this library; see the file COPYING.LIB.  If not, write to
     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA 02110-1301, USA.
 */
 
 #include "wtf/Platform.h"
 #if ENABLE(SVG)
 
 #include "FloatSize.h"
 #include "SVGAngle.h"
 #include "SVGSVGElement.h"
 #include "SVGTransform.h"
 
 #include <math.h>
 
 using namespace WebCore;
 
 SVGTransform::SVGTransform()
     : m_type(SVG_TRANSFORM_UNKNOWN)
     , m_angle(0)
 {
 }
 
 SVGTransform::SVGTransform(SVGTransformType type)
     : m_type(type)
     , m_angle(0)
     , m_center(FloatPoint())
     , m_matrix(AffineTransform())
 {
 }
 
 SVGTransform::SVGTransform(const AffineTransform &matrix)
     : m_type(SVG_TRANSFORM_MATRIX)
     , m_angle(0)
     , m_matrix(matrix)
 {
 }
 
 SVGTransform::~SVGTransform()
 {
 }
 
 bool SVGTransform::isValid()
 {
     return (m_type != SVG_TRANSFORM_UNKNOWN);
 }
 
 SVGTransform::SVGTransformType SVGTransform::type() const
 {
     return m_type;
 }
 
 AffineTransform SVGTransform::matrix() const
 {
     return m_matrix;
 }
 
 float SVGTransform::angle() const
 {
     return m_angle;
 }
 
 FloatPoint SVGTransform::rotationCenter() const
 {
     return m_center;
 }
 
 void SVGTransform::setMatrix(const AffineTransform &matrix)
 {
     m_type = SVG_TRANSFORM_MATRIX;
     m_angle = 0;
 
     m_matrix = matrix;
 }
 
 void SVGTransform::setTranslate(float tx, float ty)
 {
     m_type = SVG_TRANSFORM_TRANSLATE;
     m_angle = 0;
 
     m_matrix.reset();
     m_matrix.translate(tx, ty);
 }
 
 FloatPoint SVGTransform::translate() const
 {
     return FloatPoint::narrowPrecision(m_matrix.e(), m_matrix.f());
 }
 
 void SVGTransform::setScale(float sx, float sy)
 {
     m_type = SVG_TRANSFORM_SCALE;
     m_angle = 0;
     m_center = FloatPoint();
 
     m_matrix.reset();
     m_matrix.scale(sx, sy);
 }
 
 FloatSize SVGTransform::scale() const
 {
     return FloatSize::narrowPrecision(m_matrix.a(), m_matrix.d());
 }
 
 void SVGTransform::setRotate(float angle, float cx, float cy)
 {
     m_type = SVG_TRANSFORM_ROTATE;
     m_angle = angle;
     m_center = FloatPoint(cx, cy);
 
     // TODO: toString() implementation, which can show cx, cy (need to be stored?)
     m_matrix.reset();
     m_matrix.translate(cx, cy);
     m_matrix.rotate(angle);
     m_matrix.translate(-cx, -cy);
 }
 
 void SVGTransform::setSkewX(float angle)
 {
     m_type = SVG_TRANSFORM_SKEWX;
     m_angle = angle;
 
     m_matrix.reset();
     m_matrix.skewX(angle);
 }
 
 void SVGTransform::setSkewY(float angle)
 {
     m_type = SVG_TRANSFORM_SKEWY;
     m_angle = angle;
 
     m_matrix.reset();
     m_matrix.skewY(angle);
 }
 
 #endif // ENABLE(SVG)