source: trunk/src/plugins/iconengines/svgiconengine/qsvgiconengine.cpp@ 342

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#include "qsvgiconengine.h"

#ifndef QT_NO_SVGRENDERER

#include "qpainter.h"
#include "qpixmap.h"
#include "qsvgrenderer.h"
#include "qpixmapcache.h"
#include "qstyle.h"
#include "qapplication.h"
#include "qstyleoption.h"
#include "qfileinfo.h"
#include <QAtomicInt>
#include "qdebug.h"

QT_BEGIN_NAMESPACE

class QSvgIconEnginePrivate : public QSharedData
{
public:
    QSvgIconEnginePrivate()
        : svgBuffers(0), addedPixmaps(0)
        { stepSerialNum(); }

    ~QSvgIconEnginePrivate()
        { delete addedPixmaps; delete svgBuffers; }

    static int hashKey(QIcon::Mode mode, QIcon::State state)
        { return (((mode)<<4)|state); }

    QString pmcKey(const QSize &size, QIcon::Mode mode, QIcon::State state)
        { return QLatin1String("$qt_svgicon_")
                 + QString::number(serialNum, 16).append(QLatin1Char('_'))
                 + QString::number((((((size.width()<<11)|size.height())<<11)|mode)<<4)|state, 16); }

    void stepSerialNum()
        { serialNum = lastSerialNum.fetchAndAddRelaxed(1); };

    void loadDataForModeAndState(QSvgRenderer *renderer, QIcon::Mode mode, QIcon::State state);

    QHash<int, QString> svgFiles;
    QHash<int, QByteArray> *svgBuffers;
    QHash<int, QPixmap> *addedPixmaps;
    int serialNum;
    static QAtomicInt lastSerialNum;
};

QAtomicInt QSvgIconEnginePrivate::lastSerialNum;

static inline int pmKey(const QSize &size, QIcon::Mode mode, QIcon::State state)
{
    return ((((((size.width()<<11)|size.height())<<11)|mode)<<4)|state);
}

QSvgIconEngine::QSvgIconEngine()
    : d(new QSvgIconEnginePrivate)
{