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/*
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 "config.h"
#include "wtf/Platform.h"
#if ENABLE(SVG)
#include "FloatPoint.h"
#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);
}
// vim:ts=4:noet
#endif // ENABLE(SVG)
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