scstreamfilter_jpeg.h

/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/

#ifndef SCSTREAMFILTER_JPEG_H
#define SCSTREAMFILTER_JPEG_H

#include <QGlobalStatic>
#include "scstreamfilter.h"

struct ScJpegEncodeFilterData;

class ScJpegEncodeFilter : public ScStreamFilter
{
    friend struct ScJpegDestinationMgr;

public:

    typedef enum  {
        RGB,
        CMYK,
        GRAY
    } Color;

    ScJpegEncodeFilter(QDataStream* stream, unsigned int imgWidth, unsigned int imgHeight, ScJpegEncodeFilter::Color color);
    ScJpegEncodeFilter(ScStreamFilter* filter, unsigned int imgWidth, unsigned int imgHeight, ScJpegEncodeFilter::Color color);
    ~ScJpegEncodeFilter();

    virtual bool openFilter (void);
    virtual bool closeFilter(void);

    virtual bool writeData(const char* data, int dataLen);

    void setQuality(int quality) { m_quality = qMin(qMax(0, quality), 100); }

protected:

    ScJpegEncodeFilterData* m_filterData;

    void  freeData(void);
    bool  m_openedFilter;

    unsigned int m_width;
    unsigned int m_height;
    int          m_quality;
    Color        m_color;
};

#endif