fg_GraphicRaster.h

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/* AbiWord -- Embedded graphics for layout
 * Copyright (C) 1999 Matt Kimball
 * Copyright (C) 2009 Hubert Figuiere
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */

#ifndef FG_GRAPHICRASTER_H
#define FG_GRAPHICRASTER_H

#include "fg_Graphic.h"
#include "ut_bytebuf.h"
#include "ut_types.h"

//  An implementation of the FG_Graphic interface for raster files.  The
//  internal file format happens to be PNG OR JPEG
class ABI_EXPORT FG_GraphicRaster : public FG_Graphic
{
public:
    enum Format {
        PNG_FORMAT = 0,
        JPEG_FORMAT
    };
    static FG_GraphicPtr    createFromChangeRecord(const fl_ContainerLayout *pFL,
                                               const PX_ChangeRecord_Object* pcro);
    static FG_GraphicPtr createFromStrux(const fl_ContainerLayout *pFL);

    FG_GraphicRaster();
    virtual ~FG_GraphicRaster();

    virtual FGType      getType(void) const;
    virtual const std::string & getMimeType() const;
    virtual FG_ConstGraphicPtr clone(void) const;
    virtual double      getWidth(void) const;
    virtual double      getHeight(void) const;
    virtual const char * getDataId(void) const;
    virtual const char * createDataItem(PD_Document *pDoc, const char * szName) const;
    virtual GR_Image*   regenerateImage(GR_Graphics* pG);
    virtual GR_Image*   generateImage(GR_Graphics* pG,
                          const PP_AttrProp * pSpanAP,
                          UT_sint32 maxW, UT_sint32 maxH);

    virtual UT_Error    insertIntoDocument(PD_Document* pDoc, UT_uint32 res,
                                           UT_uint32 iPos, const char* szName) const;
    virtual UT_Error    insertAtStrux(PD_Document* pDoc,
                                      UT_uint32 res,
                                      UT_uint32 iPos,
                                      PTStruxType iStruxType,
                                      const char* szName) const;

    bool            setRaster_PNG(const UT_ConstByteBufPtr & pBB);
    bool                    setRaster_JPEG(const UT_ConstByteBufPtr & pBB);
    virtual const UT_ConstByteBufPtr &  getBuffer() const;
    Format              getFormat() const
    {
        return m_format;
    }

    virtual const char * getWidthProp(void);
    virtual const char * getHeightProp(void);

protected:
    Format            m_format;
    UT_ConstByteBufPtr m_pbb;

    UT_sint32 m_iWidth, m_iHeight;
    UT_sint32 m_iMaxW;
    UT_sint32 m_iMaxH;
    const PP_AttrProp* m_pSpanAP;
    const gchar* m_pszDataID;
};

typedef std::unique_ptr<FG_GraphicRaster> FG_GraphicRasterPtr;
// no Const since we use FG_ConstGraphicPtr.

#endif /* FG_GRAPHICRASTER_H */