Long live Qt 4.5!

1 files changed, 820 insertions, 0 deletions

diff --git a/src/svg/qsvgstyle.cpp b/src/svg/qsvgstyle.cpp
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+++ b/src/svg/qsvgstyle.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtSvg module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qsvgstyle_p.h"
+
+#ifndef QT_NO_SVG
+
+#include "qsvgfont_p.h"
+#include "qsvggraphics_p.h"
+#include "qsvgnode_p.h"
+#include "qsvgtinydocument_p.h"
+
+#include "qpainter.h"
+#include "qpair.h"
+#include "qcolor.h"
+#include "qdebug.h"
+#include "qmath.h"
+#include "qnumeric.h"
+
+QT_BEGIN_NAMESPACE
+
+QSvgExtraStates::QSvgExtraStates()
+    : fillOpacity(1.0)
+{
+}
+
+QSvgStyleProperty::~QSvgStyleProperty()
+{
+}
+
+QSvgQualityStyle::QSvgQualityStyle(int color)
+    : m_colorRendering(color)
+{
+
+}
+void QSvgQualityStyle::apply(QPainter *, const QRectF &, QSvgNode *, QSvgExtraStates &)
+{
+
+}
+void QSvgQualityStyle::revert(QPainter *, QSvgExtraStates &)
+{
+
+}
+
+QSvgFillStyle::QSvgFillStyle(const QBrush &brush)
+    : m_fill(brush), m_style(0), m_fillRuleSet(false), m_fillOpacitySet(false)
+{
+}
+
+QSvgFillStyle::QSvgFillStyle(QSvgStyleProperty *style)
+    : m_style(style), m_fillRuleSet(false), m_fillOpacitySet(false)
+{
+}
+
+void QSvgFillStyle::setFillRule(Qt::FillRule f)
+{
+    m_fillRuleSet = true;
+    m_fillRule = f;
+}
+
+void QSvgFillStyle::setFillOpacity(qreal opacity)
+{
+    m_fillOpacitySet = true;
+    m_fillOpacity = opacity;
+}
+
+static void recursivelySetFill(QSvgNode *node, Qt::FillRule f)
+{
+    if (node->type() == QSvgNode::PATH) {
+        QSvgPath *path = static_cast<QSvgPath*>(node);
+        path->qpath()->setFillRule(f);
+    } else if (node->type() == QSvgNode::G) {
+        QList<QSvgNode*> renderers = static_cast<QSvgG*>(node)->renderers();
+        foreach(QSvgNode *n, renderers) {
+            recursivelySetFill(n, f);
+        }
+    }
+}
+void QSvgFillStyle::apply(QPainter *p, const QRectF &rect, QSvgNode *node, QSvgExtraStates &states)
+{
+    m_oldFill = p->brush();
+    m_oldOpacity = states.fillOpacity;
+
+    if (m_fillRuleSet) {
+        recursivelySetFill(node, m_fillRule);
+        m_fillRuleSet = false;//set it only on the first run
+    }
+    p->setBrush(m_fill);
+    if (m_fillOpacitySet)
+        states.fillOpacity = m_fillOpacity;
+    if (m_style)
+        m_style->apply(p, rect, node, states);
+}
+
+void QSvgFillStyle::revert(QPainter *p, QSvgExtraStates &states)
+{
+    if (m_style)
+        m_style->revert(p, states);
+    p->setBrush(m_oldFill);
+    if (m_fillOpacitySet)
+        states.fillOpacity = m_oldOpacity;
+}
+
+QSvgViewportFillStyle::QSvgViewportFillStyle(const QBrush &brush)
+    : m_viewportFill(brush)
+{
+}
+
+void QSvgViewportFillStyle::apply(QPainter *p, const QRectF &, QSvgNode *, QSvgExtraStates &)
+{
+    m_oldFill = p->brush();
+    p->setBrush(m_viewportFill);
+}
+
+void QSvgViewportFillStyle::revert(QPainter *p, QSvgExtraStates &)
+{
+    p->setBrush(m_oldFill);
+}
+
+QSvgFontStyle::QSvgFontStyle(QSvgFont *font, QSvgTinyDocument *doc)
+    : m_font(font), m_pointSize(24), m_doc(doc)
+{
+}
+
+QSvgFontStyle::QSvgFontStyle(const QFont &font, QSvgTinyDocument *doc)
+    : m_font(0), m_pointSize(24), m_doc(doc), m_qfont(font)
+{
+}
+
+
+void QSvgFontStyle::setPointSize(qreal size)
+{
+    m_pointSize = size;
+}
+
+qreal QSvgFontStyle::pointSize() const
+{
+    return m_pointSize;
+}
+
+void QSvgFontStyle::apply(QPainter *p, const QRectF &, QSvgNode *, QSvgExtraStates &)
+{
+    if (!m_font) {
+        m_oldFont = p->font();
+        p->setFont(m_qfont);
+    }
+}
+
+void QSvgFontStyle::revert(QPainter *p, QSvgExtraStates &)
+{
+    if (!m_font) {
+        p->setFont(m_oldFont);
+    }
+}
+
+QSvgStrokeStyle::QSvgStrokeStyle(const QPen &pen)
+    : m_stroke(pen)
+{
+}
+
+void QSvgStrokeStyle::apply(QPainter *p, const QRectF &, QSvgNode *, QSvgExtraStates &)
+{
+    m_oldStroke = p->pen();
+    p->setPen(m_stroke);
+}
+
+void QSvgStrokeStyle::revert(QPainter *p, QSvgExtraStates &)
+{
+    p->setPen(m_oldStroke);
+}
+
+QSvgSolidColorStyle::QSvgSolidColorStyle(const QColor &color)
+    : m_solidColor(color)
+{
+}
+
+void QSvgSolidColorStyle::apply(QPainter *p, const QRectF &, QSvgNode *, QSvgExtraStates &)
+{
+    m_oldFill = p->brush();
+    m_oldStroke = p->pen();
+    QBrush b = m_oldFill;
+    b.setColor(m_solidColor);
+    p->setBrush(b);
+    QPen pen = m_oldStroke;
+    pen.setColor(m_solidColor);
+    p->setPen(pen);
+}
+
+void QSvgSolidColorStyle::revert(QPainter *p, QSvgExtraStates &)
+{
+    p->setBrush(m_oldFill);
+    p->setPen(m_oldStroke);
+}
+
+QSvgGradientStyle::QSvgGradientStyle(QGradient *grad)
+    : m_gradient(grad)
+{
+}
+
+void QSvgGradientStyle::apply(QPainter *p, const QRectF &/*rect*/, QSvgNode *, QSvgExtraStates &)
+{
+    if (!m_link.isEmpty()) {
+        resolveStops();
+    }
+
+    m_oldFill = p->brush();
+
+    //resolving stop colors
+    if (!m_resolvePoints.isEmpty()) {
+        QColor color = p->brush().color();
+        if (!color.isValid())
+            color = p->pen().color();
+        QList<qreal>::const_iterator itr = m_resolvePoints.constBegin();
+        for (; itr != m_resolvePoints.constEnd(); ++itr) {
+            //qDebug()<<"resolving "<<(*itr)<<" to "<<color;
+            m_gradient->setColorAt(*itr, color);
+        }
+    }
+
+    // If the gradient is marked as empty, insert transparent black
+    QGradientStops stops = m_gradient->stops();
+    if (stops.size() == 1 && qIsNaN(stops.at(0).first))
+        m_gradient->setStops(QGradientStops() << QGradientStop(0.0, QColor(0, 0, 0, 0)));
+
+    QGradient gradient = *m_gradient;
+
+    QBrush brush;
+    brush = QBrush(gradient);
+
+    if (!m_matrix.isIdentity())
+        brush.setMatrix(m_matrix);
+
+    p->setBrush(brush);
+}
+
+void QSvgGradientStyle::revert(QPainter *p, QSvgExtraStates &)
+{
+    p->setBrush(m_oldFill);
+}
+
+
+void QSvgGradientStyle::setMatrix(const QMatrix &mat)
+{
+    m_matrix = mat;
+}
+
+void QSvgGradientStyle::addResolve(qreal offset)
+{
+    m_resolvePoints.append(offset);
+}
+
+QSvgTransformStyle::QSvgTransformStyle(const QTransform &trans)
+    : m_transform(trans)
+{
+}
+
+void QSvgTransformStyle::apply(QPainter *p, const QRectF &, QSvgNode *, QSvgExtraStates &)
+{
+    m_oldWorldTransform = p->worldTransform();
+    p->setWorldTransform(m_transform, true);
+}
+
+void QSvgTransformStyle::revert(QPainter *p, QSvgExtraStates &)
+{
+    p->setWorldTransform(m_oldWorldTransform, false /* don't combine */);
+}
+
+QSvgStyleProperty::Type QSvgQualityStyle::type() const
+{
+    return QUALITY;
+}
+
+QSvgStyleProperty::Type QSvgFillStyle::type() const
+{
+    return FILL;
+}
+
+QSvgStyleProperty::Type QSvgViewportFillStyle::type() const
+{
+    return VIEWPORT_FILL;
+}
+
+QSvgStyleProperty::Type QSvgFontStyle::type() const
+{
+    return FONT;
+}
+
+QSvgStyleProperty::Type QSvgStrokeStyle::type() const
+{
+    return STROKE;
+}
+
+QSvgStyleProperty::Type QSvgSolidColorStyle::type() const
+{
+    return SOLID_COLOR;
+}
+
+QSvgStyleProperty::Type QSvgGradientStyle::type() const
+{
+    return GRADIENT;
+}
+
+QSvgStyleProperty::Type QSvgTransformStyle::type() const
+{
+    return TRANSFORM;
+}
+
+
+QSvgCompOpStyle::QSvgCompOpStyle(QPainter::CompositionMode mode)
+    : m_mode(mode)
+{
+
+}
+
+void QSvgCompOpStyle::apply(QPainter *p, const QRectF &, QSvgNode *, QSvgExtraStates &)
+{
+    m_oldMode = p->compositionMode();
+    p->setCompositionMode(m_mode);
+}
+
+void QSvgCompOpStyle::revert(QPainter *p, QSvgExtraStates &)
+{
+    p->setCompositionMode(m_oldMode);
+}
+
+QSvgStyleProperty::Type QSvgCompOpStyle::type() const
+{
+    return COMP_OP;
+}
+
+QSvgStyle::~QSvgStyle()
+{
+}
+
+void QSvgStyle::apply(QPainter *p, const QRectF &rect, QSvgNode *node, QSvgExtraStates &states)
+{
+    if (quality) {
+        quality->apply(p, rect, node, states);
+    }
+
+    if (fill) {
+        fill->apply(p, rect, node, states);
+    }
+
+    if (viewportFill) {
+        viewportFill->apply(p, rect, node, states);
+    }
+
+    if (font) {
+        font->apply(p, rect, node, states);
+    }
+
+    if (stroke) {
+        stroke->apply(p, rect, node, states);
+    }
+
+    if (solidColor) {
+        solidColor->apply(p, rect, node, states);
+    }
+
+    if (gradient) {
+        gradient->apply(p, rect, node, states);
+    }
+
+    if (transform) {
+        transform->apply(p, rect, node, states);
+    }
+
+    if (animateColor) {
+        animateColor->apply(p, rect, node, states);
+    }
+
+    //animated transforms have to be applied
+    //_after_ the original object transformations
+    if (!animateTransforms.isEmpty()) {
+        QList<QSvgRefCounter<QSvgAnimateTransform> >::const_iterator itr;
+        for (itr = animateTransforms.constBegin(); itr != animateTransforms.constEnd();
+             ++itr) {
+            (*itr)->apply(p, rect, node, states);
+        }
+    }
+
+    if (opacity) {
+        opacity->apply(p, rect, node, states);
+    }
+
+    if (compop) {
+        compop->apply(p, rect, node, states);
+    }
+}
+
+void QSvgStyle::revert(QPainter *p, QSvgExtraStates &states)
+{
+    if (quality) {
+        quality->revert(p, states);
+    }
+
+    if (fill) {
+        fill->revert(p, states);
+    }
+
+    if (viewportFill) {
+        viewportFill->revert(p, states);
+    }
+
+    if (font) {
+        font->revert(p, states);
+    }
+
+    if (stroke) {
+        stroke->revert(p, states);
+    }
+
+    if (solidColor) {
+        solidColor->revert(p, states);
+    }
+
+    if (gradient) {
+        gradient->revert(p, states);
+    }
+
+    //animated transforms need to be reverted _before_
+    //the native transforms
+    if (!animateTransforms.isEmpty()) {
+        QList<QSvgRefCounter<QSvgAnimateTransform> >::const_iterator itr;
+        itr = animateTransforms.constBegin();
+        //only need to rever the first one because that
+        //one has the original world matrix for the primitve
+        if (itr != animateTransforms.constEnd()) {
+            (*itr)->revert(p, states);
+        }
+    }
+
+    if (transform) {
+        transform->revert(p, states);
+    }
+
+    if (animateColor) {
+        animateColor->revert(p, states);
+    }
+
+    if (opacity) {
+        opacity->revert(p, states);
+    }
+
+    if (compop) {
+        compop->revert(p, states);
+    }
+}
+
+QSvgAnimateTransform::QSvgAnimateTransform(int startMs, int endMs, int byMs )
+    : QSvgStyleProperty(),
+      m_from(startMs), m_to(endMs), m_by(byMs),
+      m_type(Empty), m_count(0), m_finished(false)
+{
+    m_totalRunningTime = m_to - m_from;
+}
+
+void QSvgAnimateTransform::setArgs(TransformType type, const QVector<qreal> &args)
+{
+    m_type = type;
+    m_args = args;
+    Q_ASSERT(!(args.count()%3));
+    m_count = args.count() / 3;
+}
+
+void QSvgAnimateTransform::apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &)
+{
+    m_oldWorldTransform = p->worldTransform();
+    resolveMatrix(node);
+    if (!m_finished || m_freeze)
+        p->setWorldTransform(m_transform, true);
+}
+
+void QSvgAnimateTransform::revert(QPainter *p, QSvgExtraStates &)
+{
+    if (!m_finished || m_freeze) {
+        p->setWorldTransform(m_oldWorldTransform, false /* don't combine */);
+    }
+}
+
+void QSvgAnimateTransform::resolveMatrix(QSvgNode *node)
+{
+    static const qreal deg2rad = qreal(0.017453292519943295769);
+    qreal totalTimeElapsed = node->document()->currentElapsed();
+    if (totalTimeElapsed < m_from || m_finished)
+        return;
+
+    qreal animationFrame = (totalTimeElapsed - m_from) / m_to;
+
+    if (m_repeatCount >= 0 && m_repeatCount < animationFrame) {
+        m_finished = true;
+        animationFrame = m_repeatCount;
+    }
+
+    qreal percentOfAnimation = animationFrame;
+    if (percentOfAnimation > 1) {
+        percentOfAnimation -= ((int)percentOfAnimation);
+    }
+
+    qreal currentPosition = percentOfAnimation * (m_count - 1);
+    int startElem = qFloor(currentPosition);
+    int endElem   = qCeil(currentPosition);
+
+    switch(m_type)
+    {
+    case Translate: {
+        startElem *= 3;
+        endElem   *= 3;
+        qreal from1, from2, from3;
+        qreal to1, to2, to3;
+        from1 = m_args[startElem++];
+        from2 = m_args[startElem++];
+        from3 = m_args[startElem++];
+        to1   = m_args[endElem++];
+        to2   = m_args[endElem++];
+        to3   = m_args[endElem++];
+
+        qreal transXDiff = (to1-from1) * percentOfAnimation;
+        qreal transX = from1 + transXDiff;
+        qreal transYDiff = (to2-from2) * percentOfAnimation;
+        qreal transY = from2 + transYDiff;
+        m_transform = QTransform();
+        m_transform.translate(transX, transY);
+        break;
+    }
+    case Scale: {
+        startElem *= 3;
+        endElem   *= 3;
+        qreal from1, from2, from3;
+        qreal to1, to2, to3;
+        from1 = m_args[startElem++];
+        from2 = m_args[startElem++];
+        from3 = m_args[startElem++];
+        to1   = m_args[endElem++];
+        to2   = m_args[endElem++];
+        to3   = m_args[endElem++];
+
+        qreal transXDiff = (to1-from1) * percentOfAnimation;
+        qreal transX = from1 + transXDiff;
+        qreal transYDiff = (to2-from2) * percentOfAnimation;
+        qreal transY = from2 + transYDiff;
+        if (transY == 0)
+            transY = transX;
+        m_transform = QTransform();
+        m_transform.scale(transX, transY);
+        break;
+    }
+    case Rotate: {
+        startElem *= 3;
+        endElem   *= 3;
+        qreal from1, from2, from3;
+        qreal to1, to2, to3;
+        from1 = m_args[startElem++];
+        from2 = m_args[startElem++];
+        from3 = m_args[startElem++];
+        to1   = m_args[endElem++];
+        to2   = m_args[endElem++];
+        to3   = m_args[endElem++];
+
+        qreal rotationDiff = (to1 - from1) * percentOfAnimation;
+        //qreal rotation = from1 + rotationDiff;
+
+        qreal transXDiff = (to2-from2) * percentOfAnimation;
+        qreal transX = from2 + transXDiff;
+        qreal transYDiff = (to3-from3) * percentOfAnimation;
+        qreal transY = from3 + transYDiff;
+        m_transform = QTransform();
+        m_transform.translate(transX, transY);
+        m_transform.rotate(rotationDiff);
+        m_transform.translate(-transX, -transY);
+        break;
+    }
+    case SkewX: {
+        startElem *= 3;
+        endElem   *= 3;
+        qreal from1, from2, from3;
+        qreal to1, to2, to3;
+        from1 = m_args[startElem++];
+        from2 = m_args[startElem++];
+        from3 = m_args[startElem++];
+        to1   = m_args[endElem++];
+        to2   = m_args[endElem++];
+        to3   = m_args[endElem++];
+
+        qreal transXDiff = (to1-from1) * percentOfAnimation;
+        qreal transX = from1 + transXDiff;
+        m_transform = QTransform();
+        m_transform.shear(tan(transX * deg2rad), 0);
+        break;
+    }
+    case SkewY: {
+        startElem *= 3;
+        endElem   *= 3;
+        qreal from1, from2, from3;
+        qreal to1, to2, to3;
+        from1 = m_args[startElem++];
+        from2 = m_args[startElem++];
+        from3 = m_args[startElem++];
+        to1   = m_args[endElem++];
+        to2   = m_args[endElem++];
+        to3   = m_args[endElem++];
+
+
+        qreal transYDiff = (to1 - from1) * percentOfAnimation;
+        qreal transY = from1 + transYDiff;
+        m_transform = QTransform();
+        m_transform.shear(0, tan(transY * deg2rad));
+        break;
+    }
+    default:
+        break;
+    }
+}
+
+QSvgStyleProperty::Type QSvgAnimateTransform::type() const
+{
+    return ANIMATE_TRANSFORM;
+}
+
+void QSvgAnimateTransform::setFreeze(bool freeze)
+{
+    m_freeze = freeze;
+}
+
+void QSvgAnimateTransform::setRepeatCount(qreal repeatCount)
+{
+    m_repeatCount = repeatCount;
+}
+
+QSvgAnimateColor::QSvgAnimateColor(int startMs, int endMs, int byMs)
+    : QSvgStyleProperty(),
+      m_from(startMs), m_to(endMs), m_by(byMs),
+      m_finished(false)
+{
+    m_totalRunningTime = m_to - m_from;
+}
+
+void QSvgAnimateColor::setArgs(bool fill,
+                               const QList<QColor> &colors)
+{
+    m_fill = fill;
+    m_colors = colors;
+}
+
+void QSvgAnimateColor::setFreeze(bool freeze)
+{
+    m_freeze = freeze;
+}
+
+void QSvgAnimateColor::setRepeatCount(qreal repeatCount)
+{
+    m_repeatCount = repeatCount;
+}
+
+void QSvgAnimateColor::apply(QPainter *p, const QRectF &, QSvgNode *node, QSvgExtraStates &)
+{
+    qreal totalTimeElapsed = node->document()->currentElapsed();
+    if (totalTimeElapsed < m_from || m_finished)
+        return;
+
+    qreal animationFrame = (totalTimeElapsed - m_from) / m_to;
+
+    if (m_repeatCount >= 0 && m_repeatCount < animationFrame) {
+        m_finished = true;
+        animationFrame = m_repeatCount;
+    }
+
+    qreal percentOfAnimation = animationFrame;
+    if (percentOfAnimation > 1) {
+        percentOfAnimation -= ((int)percentOfAnimation);
+    }
+
+    qreal currentPosition = percentOfAnimation * (m_colors.count() - 1);
+
+    int startElem = qFloor(currentPosition);
+    int endElem   = qCeil(currentPosition);
+    QColor start = m_colors[startElem];
+    QColor end = m_colors[endElem];
+
+    qreal percentOfColorMorph = currentPosition;
+    if (percentOfColorMorph > 1) {
+        percentOfColorMorph -= ((int)percentOfColorMorph);
+    }
+
+    // Interpolate between the two fixed colors start and end
+    qreal aDiff = (end.alpha() - start.alpha()) * percentOfColorMorph;
+    qreal rDiff = (end.red()   - start.red()) * percentOfColorMorph;
+    qreal gDiff = (end.green() - start.green()) * percentOfColorMorph;
+    qreal bDiff = (end.blue()  - start.blue()) * percentOfColorMorph;
+
+    int alpha  = int(start.alpha() + aDiff);
+    int red    = int(start.red() + rDiff);
+    int green  = int(start.green() + gDiff);
+    int blue   = int(start.blue() + bDiff);
+
+    QColor color(red, green, blue, alpha);
+
+    if (m_fill) {
+        QBrush b = p->brush();
+        m_oldBrush = b;
+        b.setColor(color);
+        p->setBrush(b);
+    } else {
+        QPen pen = p->pen();
+        m_oldPen = pen;
+        pen.setColor(color);
+        p->setPen(pen);
+    }
+}
+
+void QSvgAnimateColor::revert(QPainter *p, QSvgExtraStates &)
+{
+    if (m_fill) {
+        p->setBrush(m_oldBrush);
+    } else {
+        p->setPen(m_oldPen);
+    }
+}
+
+QSvgStyleProperty::Type QSvgAnimateColor::type() const
+{
+    return ANIMATE_COLOR;
+}
+
+QString QSvgFontStyle::textAnchor() const
+{
+    return m_textAnchor;
+}
+
+void QSvgFontStyle::setTextAnchor(const QString &anchor)
+{
+    m_textAnchor = anchor;
+}
+
+QSvgOpacityStyle::QSvgOpacityStyle(qreal opacity)
+    : m_opacity(opacity)
+{
+
+}
+
+void QSvgOpacityStyle::apply(QPainter *p, const QRectF &, QSvgNode *, QSvgExtraStates &)
+{
+    m_oldOpacity = p->opacity();
+    p->setOpacity(m_opacity * m_oldOpacity);
+}
+
+void QSvgOpacityStyle::revert(QPainter *p, QSvgExtraStates &)
+{
+    p->setOpacity(m_oldOpacity);
+}
+
+QSvgStyleProperty::Type QSvgOpacityStyle::type() const
+{
+    return OPACITY;
+}
+
+void QSvgGradientStyle::setStopLink(const QString &link, QSvgTinyDocument *doc)
+{
+    m_link = link;
+    m_doc  = doc;
+}
+
+void QSvgGradientStyle::resolveStops()
+{
+    if (!m_link.isEmpty() && m_doc) {
+        QSvgStyleProperty *prop = m_doc->scopeStyle(m_link);
+        if (prop) {
+            if (prop->type() == QSvgStyleProperty::GRADIENT) {
+                QSvgGradientStyle *st =
+                    static_cast<QSvgGradientStyle*>(prop);
+                st->resolveStops();
+                m_gradient->setStops(st->qgradient()->stops());
+            }
+        }
+        m_link = QString();
+    }
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_SVG