SVGFETurbulenceElementImpl.cpp

/*
    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., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.
*/

#include <qstringlist.h>

#include <kdom/core/AttrImpl.h>

#include <kcanvas/KCanvas.h>
#include <kcanvas/KCanvasRegistry.h>
#include <kcanvas/KCanvasResources.h>
#include <kcanvas/KCanvasFilters.h>
#include <kcanvas/device/KRenderingDevice.h>
#include <kcanvas/device/KRenderingPaintServerGradient.h>

#include "ksvg.h"
#include "svgattrs.h"
#include "SVGHelper.h"
#include "SVGRenderStyle.h"
#include "SVGFETurbulenceElementImpl.h"
#include "SVGAnimatedNumberImpl.h"
#include "SVGAnimatedEnumerationImpl.h"
#include "SVGAnimatedIntegerImpl.h"
#include "SVGDOMImplementationImpl.h"

using namespace KSVG;

SVGFETurbulenceElementImpl::SVGFETurbulenceElementImpl(KDOM::DocumentPtr *doc, KDOM::NodeImpl::Id id, KDOM::DOMStringImpl *prefix) : 
SVGFilterPrimitiveStandardAttributesImpl(doc, id, prefix)
{
    m_baseFrequencyX = m_baseFrequencyY = m_seed = 0;
    m_numOctaves = 0;
    m_stitchTiles = m_type = 0;
    m_filterEffect = 0;
}

SVGFETurbulenceElementImpl::~SVGFETurbulenceElementImpl()
{
    if(m_baseFrequencyX)
        m_baseFrequencyX->deref();
    if(m_baseFrequencyY)
        m_baseFrequencyY->deref();
    if(m_numOctaves)
        m_numOctaves->deref();
    if(m_seed)
        m_seed->deref();
    if(m_stitchTiles)
        m_stitchTiles->deref();
    if(m_type)
        m_type->deref();
}

SVGAnimatedNumberImpl *SVGFETurbulenceElementImpl::baseFrequencyX() const
{
    SVGStyledElementImpl *dummy = 0;
    return lazy_create<SVGAnimatedNumberImpl>(m_baseFrequencyX, dummy);
}

SVGAnimatedNumberImpl *SVGFETurbulenceElementImpl::baseFrequencyY() const
{
    SVGStyledElementImpl *dummy = 0;
    return lazy_create<SVGAnimatedNumberImpl>(m_baseFrequencyY, dummy);
}

SVGAnimatedNumberImpl *SVGFETurbulenceElementImpl::seed() const
{
    SVGStyledElementImpl *dummy = 0;
    return lazy_create<SVGAnimatedNumberImpl>(m_seed, dummy);
}

SVGAnimatedIntegerImpl *SVGFETurbulenceElementImpl::numOctaves() const
{
    SVGStyledElementImpl *dummy = 0;
    return lazy_create<SVGAnimatedIntegerImpl>(m_numOctaves, dummy);
}

SVGAnimatedEnumerationImpl *SVGFETurbulenceElementImpl::stitchTiles() const
{
    SVGStyledElementImpl *dummy = 0;
    return lazy_create<SVGAnimatedEnumerationImpl>(m_stitchTiles, dummy);
}

SVGAnimatedEnumerationImpl *SVGFETurbulenceElementImpl::type() const
{
    SVGStyledElementImpl *dummy = 0;
    return lazy_create<SVGAnimatedEnumerationImpl>(m_type, dummy);
}

void SVGFETurbulenceElementImpl::parseAttribute(KDOM::AttributeImpl *attr)
{
    int id = (attr->id() & NodeImpl_IdLocalMask);
    KDOM::DOMString value(attr->value());
    switch(id)
    {
        case ATTR_TYPE:
        {
            if(value == "fractalNoise")
                type()->setBaseVal(SVG_TURBULENCE_TYPE_FRACTALNOISE);
            else if(value == "turbulence")
                type()->setBaseVal(SVG_TURBULENCE_TYPE_TURBULENCE);
            break;
        }
        case ATTR_STITCHTILES:
        {
            if(value == "stitch")
                stitchTiles()->setBaseVal(SVG_STITCHTYPE_STITCH);
            else if(value == "nostitch")
                stitchTiles()->setBaseVal(SVG_STITCHTYPE_NOSTITCH);
            break;
        }
        case ATTR_BASEFREQUENCY:
        {
            QStringList numbers = QStringList::split(' ', value.string());
            baseFrequencyX()->setBaseVal(numbers[0].toDouble());
            if(numbers.count() == 1)
                baseFrequencyY()->setBaseVal(numbers[0].toDouble());
            else
                baseFrequencyY()->setBaseVal(numbers[1].toDouble());

            break;
        }
        case ATTR_SEED:
        {
            seed()->setBaseVal(value.string().toDouble());
            break;
        }
        case ATTR_NUMOCTAVES:
        {
            numOctaves()->setBaseVal(value.string().toUInt());
            break;
        }
        default:
        {
            SVGFilterPrimitiveStandardAttributesImpl::parseAttribute(attr);
        }
    };
}

KCanvasItem *SVGFETurbulenceElementImpl::createCanvasItem(KCanvas *canvas, KRenderingStyle *style) const
{

    m_filterEffect = static_cast<KCanvasFETurbulence *>(canvas->renderingDevice()->createFilterEffect(FE_TURBULENCE));
    if (!m_filterEffect)
        return 0;
    
    m_filterEffect->setType((KCTurbulanceType)(type()->baseVal() - 1));
    setStandardAttributes(m_filterEffect);
    m_filterEffect->setBaseFrequencyX(baseFrequencyX()->baseVal());
    m_filterEffect->setBaseFrequencyY(baseFrequencyY()->baseVal());
    m_filterEffect->setNumOctaves(numOctaves()->baseVal());
    m_filterEffect->setSeed(seed()->baseVal());
    m_filterEffect->setStitchTiles(stitchTiles()->baseVal() == SVG_STITCHTYPE_STITCH);
    return 0;
}

KCanvasFilterEffect *SVGFETurbulenceElementImpl::filterEffect() const
{
    return m_filterEffect;
}

// vim:ts=4:noet