scimgdataloader.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 SCIMGDATALOADER_H
#define SCIMGDATALOADER_H

#include "scribusapi.h"
#include <QByteArray>
#include <QImage>
#include <QStringList>

#include "colormgmt/sccolormgmtstructs.h"
#include "scimagestructs.h"
#include "rawimage.h"

class ScImgDataLoader
{
protected:
    ScImgDataLoader(void);

    QStringList m_supportedFormats;

    QImage          m_image;
    ImageInfoRecord m_imageInfoRecord;
    QByteArray      m_embeddedProfile;
    int             m_profileComponents;
    eColorFormat    m_pixelFormat;

    typedef enum {
        noMsg = 0,
        warningMsg = 1,
        errorMsg = 2
    } MsgType;
    MsgType m_msgType;
    QString m_message;

    void swapRGBA(void);
    void swapRGBA(QImage *img);

    QString getPascalString(QDataStream & s);
    double decodePSDfloat(uint data);
    void parseRessourceData( QDataStream & s, const PSDHeader & header, uint size );

public:
    virtual ~ScImgDataLoader(void) {};

    const QStringList& supportedFormats(void) const { return m_supportedFormats; }
    bool  supportFormat(const QString& fmt);

    RawImage    r_image;

    QImage&          image(void) { return m_image; }
    QByteArray&      embeddedProfile(void) { return m_embeddedProfile; }
    ImageInfoRecord& imageInfoRecord(void) { return m_imageInfoRecord; }
    eColorFormat     pixelFormat(void) { return m_pixelFormat; }
    void             setRequest(bool valid, QMap<int, ImageLoadRequest> req);

    bool  issuedErrorMsg(void)      const { return (m_msgType == errorMsg); }
    bool  issuedWarningMsg(void)    const { return (m_msgType == warningMsg); }
    const QString& getMessage(void) const { return m_message; }

    virtual void initialize(void);

//  virtual void preloadAlphaChannel(const QString& fn, int res) = 0;
    virtual bool preloadAlphaChannel(const QString& fn, int page, int res, bool& hasAlpha) = 0;
    virtual void loadEmbeddedProfile(const QString& fn, int page = 0) = 0;
    virtual bool loadPicture(const QString& fn, int page, int res, bool thumbnail) = 0;
    virtual bool useRawImage() { return false; }
};

#endif