qsvgrenderer.cpp

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#include "qsvgrenderer.h"

#ifndef QT_NO_SVGRENDERER

#include "qsvgtinydocument_p.h"

#include "qbytearray.h"
#include "qtimer.h"
#include "qdebug.h"
#include "private/qobject_p.h"


QT_BEGIN_NAMESPACE

class QSvgRendererPrivate : public QObjectPrivate
{
    Q_DECLARE_PUBLIC(QSvgRenderer)
public:
    explicit QSvgRendererPrivate()
        : QObjectPrivate(),
          render(0), timer(0),
          fps(30)
    {}
    ~QSvgRendererPrivate()
    {
        delete render;
    }

    static void callRepaintNeeded(QSvgRenderer *const q);

    QSvgTinyDocument *render;
    QTimer *timer;
    int fps;
};

QSvgRenderer::QSvgRenderer(QObject *parent)
    : QObject(*(new QSvgRendererPrivate), parent)
{
}

QSvgRenderer::QSvgRenderer(const QString &filename, QObject *parent)
    : QObject(*new QSvgRendererPrivate, parent)
{
    load(filename);
}

QSvgRenderer::QSvgRenderer(const QByteArray &contents, QObject *parent)
    : QObject(*new QSvgRendererPrivate, parent)
{
    load(contents);
}

QSvgRenderer::QSvgRenderer(QXmlStreamReader *contents, QObject *parent)
    : QObject(*new QSvgRendererPrivate, parent)
{
    load(contents);
}

QSvgRenderer::~QSvgRenderer()
{

}

bool QSvgRenderer::isValid() const
{
    Q_D(const QSvgRenderer);
    return d->render;
}

QSize QSvgRenderer::defaultSize() const
{
    Q_D(const QSvgRenderer);
    if (d->render)
        return d->render->size();
    else
        return QSize();
}

QRect QSvgRenderer::viewBox() const
{
    Q_D(const QSvgRenderer);
    if (d->render)
        return d->render->viewBox().toRect();
    else
        return QRect();
}

void QSvgRenderer::setViewBox(const QRect &viewbox)
{
    Q_D(QSvgRenderer);
    if (d->render)
        d->render->setViewBox(viewbox);
}

bool QSvgRenderer::animated() const
{
    Q_D(const QSvgRenderer);
    if (d->render)
        return d->render->animated();
    else
        return false;
}

int QSvgRenderer::framesPerSecond() const
{
    Q_D(const QSvgRenderer);
    return d->fps;
}

void QSvgRenderer::setFramesPerSecond(int num)
{
    Q_D(QSvgRenderer);
    if (num < 0) {
        qWarning("QSvgRenderer::setFramesPerSecond: Cannot set negative value %d", num);
        return;
    }
    d->fps = num;
}

int QSvgRenderer::currentFrame() const
{
    Q_D(const QSvgRenderer);
    return d->render->currentFrame();
}

void QSvgRenderer::setCurrentFrame(int frame)
{
    Q_D(QSvgRenderer);
    d->render->setCurrentFrame(frame);
}

int QSvgRenderer::animationDuration() const
{
    Q_D(const QSvgRenderer);
    return d->render->animationDuration();
}

void QSvgRendererPrivate::callRepaintNeeded(QSvgRenderer *const q)
{
    q->repaintNeeded();
}

template<typename TInputType>
static bool loadDocument(QSvgRenderer *const q,
                         QSvgRendererPrivate *const d,
                         const TInputType &in)
{
    delete d->render;
    d->render = QSvgTinyDocument::load(in);
    if (d->render && d->render->animated() && d->fps > 0) {
        if (!d->timer)
            d->timer = new QTimer(q);
        else
            d->timer->stop();
        q->connect(d->timer, SIGNAL(timeout()),
                   q, SIGNAL(repaintNeeded()));
        d->timer->start(1000/d->fps);
    } else if (d->timer) {
        d->timer->stop();
    }

    //force first update
    QSvgRendererPrivate::callRepaintNeeded(q);

    return d->render;
}

bool QSvgRenderer::load(const QString &filename)
{
    Q_D(QSvgRenderer);
    return loadDocument(this, d, filename);
}

bool QSvgRenderer::load(const QByteArray &contents)
{
    Q_D(QSvgRenderer);
    return loadDocument(this, d, contents);
}

bool QSvgRenderer::load(QXmlStreamReader *contents)
{
    Q_D(QSvgRenderer);
    return loadDocument(this, d, contents);
}

void QSvgRenderer::render(QPainter *painter)
{
    Q_D(QSvgRenderer);
    if (d->render) {
        d->render->draw(painter);
    }
}

void QSvgRenderer::render(QPainter *painter, const QString &elementId,
                          const QRectF &bounds)
{
    Q_D(QSvgRenderer);
    if (d->render) {
        d->render->draw(painter, elementId, bounds);
    }
}

void QSvgRenderer::render(QPainter *painter, const QRectF &bounds)
{
    Q_D(QSvgRenderer);
    if (d->render) {
        d->render->draw(painter, bounds);
    }
}

QRectF QSvgRenderer::viewBoxF() const
{
    Q_D(const QSvgRenderer);
    if (d->render)
        return d->render->viewBox();
    else
        return QRect();
}

void QSvgRenderer::setViewBox(const QRectF &viewbox)
{
    Q_D(QSvgRenderer);
    if (d->render)
        d->render->setViewBox(viewbox);
}

QRectF QSvgRenderer::boundsOnElement(const QString &id) const
{
    Q_D(const QSvgRenderer);
    QRectF bounds;
    if (d->render)
        bounds = d->render->boundsOnElement(id);
    return bounds;
}


bool QSvgRenderer::elementExists(const QString &id) const
{
    Q_D(const QSvgRenderer);
    bool exists = false;
    if (d->render)
        exists = d->render->elementExists(id);
    return exists;
}

QMatrix QSvgRenderer::matrixForElement(const QString &id) const
{
    Q_D(const QSvgRenderer);
    QMatrix mat;
    if (d->render)
        mat = d->render->matrixForElement(id);
    return mat;
}

QT_END_NAMESPACE

#include "moc_qsvgrenderer.cpp"

#endif // QT_NO_SVGRENDERER