/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtSvg module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "qsvgnode_p.h"+
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#include "qsvgtinydocument_p.h"+
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+
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#ifndef QT_NO_SVG+
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+
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#include "qdebug.h"+
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#include "qstack.h"+
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+
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QT_BEGIN_NAMESPACE+
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+
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QSvgNode::QSvgNode(QSvgNode *parent)+
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    : m_parent(parent),+
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      m_visible(true),+
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      m_displayMode(BlockMode)+
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{+
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}+
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+
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QSvgNode::~QSvgNode()+
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{+
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+
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}+
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+
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void QSvgNode::appendStyleProperty(QSvgStyleProperty *prop, const QString &id)+
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{+
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    //qDebug()<<"appending "<<prop->type()<< " ("<< id <<") "<<"to "<<this<<this->type();+
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    QSvgTinyDocument *doc;+
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    switch (prop->type()) {+
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    case QSvgStyleProperty::QUALITY:+
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        m_style.quality = static_cast<QSvgQualityStyle*>(prop);+
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        break;+
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    case QSvgStyleProperty::FILL:+
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        m_style.fill = static_cast<QSvgFillStyle*>(prop);+
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        break;+
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    case QSvgStyleProperty::VIEWPORT_FILL:+
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        m_style.viewportFill = static_cast<QSvgViewportFillStyle*>(prop);+
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        break;+
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    case QSvgStyleProperty::FONT:+
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        m_style.font = static_cast<QSvgFontStyle*>(prop);+
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        break;+
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    case QSvgStyleProperty::STROKE:+
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        m_style.stroke = static_cast<QSvgStrokeStyle*>(prop);+
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        break;+
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    case QSvgStyleProperty::SOLID_COLOR:+
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        m_style.solidColor = static_cast<QSvgSolidColorStyle*>(prop);+
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        doc = document();+
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        if (doc && !id.isEmpty())+
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            doc->addNamedStyle(id, m_style.solidColor);+
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        break;+
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    case QSvgStyleProperty::GRADIENT:+
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        m_style.gradient = static_cast<QSvgGradientStyle*>(prop);+
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        doc = document();+
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        if (doc && !id.isEmpty())+
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            doc->addNamedStyle(id, m_style.gradient);+
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        break;+
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    case QSvgStyleProperty::TRANSFORM:+
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        m_style.transform = static_cast<QSvgTransformStyle*>(prop);+
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        break;+
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    case QSvgStyleProperty::ANIMATE_COLOR:+
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        m_style.animateColor = static_cast<QSvgAnimateColor*>(prop);+
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        break;+
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    case QSvgStyleProperty::ANIMATE_TRANSFORM:+
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        m_style.animateTransforms.append(+
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            static_cast<QSvgAnimateTransform*>(prop));+
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        break;+
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    case QSvgStyleProperty::OPACITY:+
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        m_style.opacity = static_cast<QSvgOpacityStyle*>(prop);+
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        break;+
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    case QSvgStyleProperty::COMP_OP:+
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        m_style.compop = static_cast<QSvgCompOpStyle*>(prop);+
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        break;+
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    default:+
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        qDebug("QSvgNode: Trying to append unknown property!");+
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        break;+
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    }+
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}+
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+
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void QSvgNode::applyStyle(QPainter *p, QSvgExtraStates &states) const+
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{+
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    m_style.apply(p, this, states);+
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}+
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+
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void QSvgNode::revertStyle(QPainter *p, QSvgExtraStates &states) const+
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{+
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    m_style.revert(p, states);+
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}+
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+
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QSvgStyleProperty * QSvgNode::styleProperty(QSvgStyleProperty::Type type) const+
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{+
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    const QSvgNode *node = this;+
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    while (node) {+
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        switch (type) {+
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        case QSvgStyleProperty::QUALITY:+
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            if (node->m_style.quality)+
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                return node->m_style.quality;+
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            break;+
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        case QSvgStyleProperty::FILL:+
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            if (node->m_style.fill)+
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                return node->m_style.fill;+
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            break;+
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        case QSvgStyleProperty::VIEWPORT_FILL:+
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            if (m_style.viewportFill)+
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                return node->m_style.viewportFill;+
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            break;+
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        case QSvgStyleProperty::FONT:+
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            if (node->m_style.font)+
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                return node->m_style.font;+
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            break;+
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        case QSvgStyleProperty::STROKE:+
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            if (node->m_style.stroke)+
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                return node->m_style.stroke;+
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            break;+
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        case QSvgStyleProperty::SOLID_COLOR:+
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            if (node->m_style.solidColor)+
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                return node->m_style.solidColor;+
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            break;+
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        case QSvgStyleProperty::GRADIENT:+
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            if (node->m_style.gradient)+
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                return node->m_style.gradient;+
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            break;+
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        case QSvgStyleProperty::TRANSFORM:+
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            if (node->m_style.transform)+
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                return node->m_style.transform;+
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            break;+
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        case QSvgStyleProperty::ANIMATE_COLOR:+
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            if (node->m_style.animateColor)+
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                return node->m_style.animateColor;+
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            break;+
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        case QSvgStyleProperty::ANIMATE_TRANSFORM:+
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            if (!node->m_style.animateTransforms.isEmpty())+
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                return node->m_style.animateTransforms.first();+
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            break;+
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        case QSvgStyleProperty::OPACITY:+
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            if (node->m_style.opacity)+
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                return node->m_style.opacity;+
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            break;+
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        case QSvgStyleProperty::COMP_OP:+
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            if (node->m_style.compop)+
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                return node->m_style.compop;+
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            break;+
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        default:+
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            break;+
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        }+
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        node = node->parent();+
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    }+
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+
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    return 0;+
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}+
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+
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QSvgFillStyleProperty * QSvgNode::styleProperty(const QString &id) const+
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{+
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    QString rid = id;+
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    if (rid.startsWith(QLatin1Char('#')))+
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        rid.remove(0, 1);+
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    QSvgTinyDocument *doc = document();+
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    return doc ? doc->namedStyle(rid) : 0;+
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}+
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+
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QRectF QSvgNode::bounds(QPainter *, QSvgExtraStates &) const+
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{+
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    return QRectF(0, 0, 0, 0);+
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}+
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+
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QRectF QSvgNode::transformedBounds() const+
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{+
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    if (!m_cachedBounds.isEmpty())+
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        return m_cachedBounds;+
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+
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    QImage dummy(1, 1, QImage::Format_RGB32);+
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    QPainter p(&dummy);+
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    QSvgExtraStates states;+
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+
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    QPen pen(Qt::NoBrush, 1, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin);+
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    pen.setMiterLimit(4);+
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    p.setPen(pen);+
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+
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    QStack<QSvgNode*> parentApplyStack;+
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    QSvgNode *parent = m_parent;+
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    while (parent) {+
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        parentApplyStack.push(parent);+
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        parent = parent->parent();+
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    }+
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+
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    for (int i = parentApplyStack.size() - 1; i >= 0; --i)+
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        parentApplyStack[i]->applyStyle(&p, states);+
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    +
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    p.setWorldTransform(QTransform());+
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+
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    m_cachedBounds = transformedBounds(&p, states);+
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    return m_cachedBounds;+
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}+
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+
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QSvgTinyDocument * QSvgNode::document() const+
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{+
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    QSvgTinyDocument *doc = 0;+
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    QSvgNode *node = const_cast<QSvgNode*>(this);+
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    while (node && node->type() != QSvgNode::DOC) {+
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        node = node->parent();+
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    }+
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    doc = static_cast<QSvgTinyDocument*>(node);+
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+
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    return doc;+
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}+
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+
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void QSvgNode::setRequiredFeatures(const QStringList &lst)+
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{+
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    m_requiredFeatures = lst;+
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}+
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+
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const QStringList & QSvgNode::requiredFeatures() const+
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{+
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    return m_requiredFeatures;+
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}+
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+
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void QSvgNode::setRequiredExtensions(const QStringList &lst)+
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{+
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    m_requiredExtensions = lst;+
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}+
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+
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const QStringList & QSvgNode::requiredExtensions() const+
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{+
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    return m_requiredExtensions;+
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}+
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+
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void QSvgNode::setRequiredLanguages(const QStringList &lst)+
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{+
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    m_requiredLanguages = lst;+
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}+
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+
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const QStringList & QSvgNode::requiredLanguages() const+
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{+
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    return m_requiredLanguages;+
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}+
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+
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void QSvgNode::setRequiredFormats(const QStringList &lst)+
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{+
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    m_requiredFormats = lst;+
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}+
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+
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const QStringList & QSvgNode::requiredFormats() const+
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{+
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    return m_requiredFormats;+
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}+
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+
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void QSvgNode::setRequiredFonts(const QStringList &lst)+
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{+
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    m_requiredFonts = lst;+
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}+
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+
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const QStringList & QSvgNode::requiredFonts() const+
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{+
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    return m_requiredFonts;+
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}+
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+
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void QSvgNode::setVisible(bool visible)+
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{+
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    //propagate visibility change of true to the parent+
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    //not propagating false is just a small performance+
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    //degradation since we'll iterate over children without+
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    //drawing any of them+
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    if (m_parent && visible && !m_parent->isVisible())+
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        m_parent->setVisible(true);+
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+
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    m_visible = visible;+
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}+
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+
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QRectF QSvgNode::transformedBounds(QPainter *p, QSvgExtraStates &states) const+
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{+
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    applyStyle(p, states);+
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    QRectF rect = bounds(p, states);+
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    revertStyle(p, states);+
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    return rect;+
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}+
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+
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void QSvgNode::setNodeId(const QString &i)+
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{+
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    m_id = i;+
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}+
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+
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void QSvgNode::setXmlClass(const QString &str)+
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{+
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    m_class = str;+
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}+
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+
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void QSvgNode::setDisplayMode(DisplayMode mode)+
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{+
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    m_displayMode = mode;+
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}+
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+
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QSvgNode::DisplayMode QSvgNode::displayMode() const+
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{+
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    return m_displayMode;+
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}+
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+
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qreal QSvgNode::strokeWidth(QPainter *p)+
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{+
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    QPen pen = p->pen();+
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    if (pen.style() == Qt::NoPen || pen.brush().style() == Qt::NoBrush || pen.isCosmetic())+
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        return 0;+
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    return pen.widthF();+
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}+
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+
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QT_END_NAMESPACE+
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+
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#endif // QT_NO_SVG+
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