xref: /trunk/main/sdext/source/pdfimport/xpdfwrapper/pdfioutdev_gpl.hxx (revision 914d351e5f5b84e4342a86d6ab8d4aca7308b9bd)

/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/

#ifndef INCLUDED_PDFI_OUTDEV_HXX
#define INCLUDED_PDFI_OUTDEV_HXX

#if defined __GNUC__
#pragma GCC system_header
#elif defined __SUNPRO_CC
#pragma disable_warn
#elif defined _MSC_VER
#pragma warning(push, 1)
#endif

#include "GfxState.h"
#include "GfxFont.h"
#include "UnicodeMap.h"
#include "Link.h"
#include "Object.h"
#include "OutputDev.h"
#include "Stream.h"
#include "GlobalParams.h"
#include "PDFDoc.h"

#if defined __SUNPRO_CC
#pragma enable_warn
#elif defined _MSC_VER
#pragma warning(pop)
#endif

#include <hash_map>
#include <vector>

class GfxPath;
class GfxFont;
class PDFDoc;

namespace pdfi
{
    struct FontAttributes
    {
        FontAttributes( const GooString& familyName_,
                        bool           isEmbedded_,
                        bool           isBold_,
                        bool           isItalic_,
                        bool           isUnderline_,
                        double         size_ ) :
            familyName(),
            isEmbedded(isEmbedded_),
            isBold(isBold_),
            isItalic(isItalic_),
            isUnderline(isUnderline_),
            size(size_)
        {
            familyName.append(const_cast<GooString*>(&familyName_));
        }

        FontAttributes() :
            familyName(),
            isEmbedded(false),
            isBold(false),
            isItalic(false),
            isUnderline(false),
            size(0.0)
        {}

        // xpdf goo stuff is so totally borked...
        // ...need to hand-code assignment
        FontAttributes( const FontAttributes& rSrc ) :
            familyName(),
            isEmbedded(rSrc.isEmbedded),
            isBold(rSrc.isBold),
            isItalic(rSrc.isItalic),
            isUnderline(rSrc.isUnderline),
            size(rSrc.size)
        {
            familyName.append(const_cast<GooString*>(&rSrc.familyName));
        }

        FontAttributes& operator=( const FontAttributes& rSrc )
        {
            familyName.clear();
            familyName.append(const_cast<GooString*>(&rSrc.familyName));

            isEmbedded  = rSrc.isEmbedded;
            isBold      = rSrc.isBold;
            isItalic    = rSrc.isItalic;
            isUnderline = rSrc.isUnderline;
            size        = rSrc.size;

            return *this;
        }

        bool operator==(const FontAttributes& rFont) const
        {
            return const_cast<GooString*>(&familyName)->cmp(
                const_cast<GooString*>(&rFont.familyName))==0 &&
                isEmbedded == rFont.isEmbedded &&
                isBold == rFont.isBold &&
                isItalic == rFont.isItalic &&
                isUnderline == rFont.isUnderline &&
                size == rFont.size;
        }

        GooString     familyName;
        bool        isEmbedded;
        bool        isBold;
        bool        isItalic;
        bool        isUnderline;
        double      size;
    };

    class PDFOutDev : public OutputDev
    {
        // not owned by this class
        PDFDoc*                                 m_pDoc;
        mutable std::hash_map< long long,
                               FontAttributes > m_aFontMap;
        UnicodeMap*                             m_pUtf8Map;

        int  parseFont( long long nNewId, GfxFont* pFont, GfxState* state ) const;
        void writeFontFile( GfxFont* gfxFont ) const;
        void printPath( GfxPath* pPath ) const;

    public:
        explicit PDFOutDev( PDFDoc* pDoc );

        //----- get info about output device

        // Does this device use upside-down coordinates?
        // (Upside-down means (0,0) is the top left corner of the page.)
        virtual GBool upsideDown() { return gTrue; }

        // Does this device use drawChar() or drawString()?
        virtual GBool useDrawChar() { return gTrue; }

        // Does this device use beginType3Char/endType3Char?  Otherwise,
        // text in Type 3 fonts will be drawn with drawChar/drawString.
        virtual GBool interpretType3Chars() { return gFalse; }

        // Does this device need non-text content?
        virtual GBool needNonText() { return gTrue; }

        //----- initialization and control

        // Set default transform matrix.
        virtual void setDefaultCTM(double *ctm);

        // Start a page.
        virtual void startPage(int pageNum, GfxState *state, XRef *xref);

        // End a page.
        virtual void endPage();

        // Dump page contents to display.
        // virtual void dump() {}

        //----- coordinate conversion

        // Convert between device and user coordinates.
        // virtual void cvtDevToUser(double dx, double dy, double *ux, double *uy);
        // virtual void cvtUserToDev(double ux, double uy, int *dx, int *dy);

        //----- link borders
        virtual void processLink(AnnotLink *link);

        //----- save/restore graphics state
        virtual void saveState(GfxState *state);
        virtual void restoreState(GfxState *state);

        //----- update graphics state
        // virtual void updateAll(GfxState *state);
        virtual void updateCTM(GfxState *state, double m11, double m12,
                               double m21, double m22, double m31, double m32);
        virtual void updateLineDash(GfxState *state);
        virtual void updateFlatness(GfxState *state);
        virtual void updateLineJoin(GfxState *state);
        virtual void updateLineCap(GfxState *state);
        virtual void updateMiterLimit(GfxState *state);
        virtual void updateLineWidth(GfxState *state);
        virtual void updateFillColor(GfxState *state);
        virtual void updateStrokeColor(GfxState *state);
        virtual void updateFillOpacity(GfxState *state);
        virtual void updateStrokeOpacity(GfxState *state);
        virtual void updateBlendMode(GfxState *state);

        //----- update text state
        virtual void updateFont(GfxState *state);
        // virtual void updateTextMat(GfxState *state);
        // virtual void updateCharSpace(GfxState *state) {}
        virtual void updateRender(GfxState *state);
        // virtual void updateRise(GfxState *state) {}
        // virtual void updateWordSpace(GfxState *state) {}
        // virtual void updateHorizScaling(GfxState *state) {}
        // virtual void updateTextPos(GfxState *state) {}
        // virtual void updateTextShift(GfxState *state, double shift) {}

        //----- path painting
        virtual void stroke(GfxState *state);
        virtual void fill(GfxState *state);
        virtual void eoFill(GfxState *state);

        //----- path clipping
        virtual void clip(GfxState *state);
        virtual void eoClip(GfxState *state);

        //----- text drawing
        virtual void drawChar(GfxState *state, double x, double y,
                              double dx, double dy,
                              double originX, double originY,
                              CharCode code, int nBytes, Unicode *u, int uLen);
        virtual void drawString(GfxState *state, GooString *s);
        virtual void endTextObject(GfxState *state);

        //----- image drawing
        virtual void drawImageMask(GfxState *state, Object *ref, Stream *str,
                                   int width, int height, GBool invert,
                                   GBool inlineImg);
        virtual void drawImage(GfxState *state, Object *ref, Stream *str,
                               int width, int height, GfxImageColorMap *colorMap,
                               int *maskColors, GBool inlineImg);
        virtual void drawMaskedImage(GfxState *state, Object *ref, Stream *str,
                                     int width, int height,
                                     GfxImageColorMap *colorMap,
                                     Stream *maskStr, int maskWidth, int maskHeight,
                                     GBool maskInvert);
        virtual void drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str,
                                         int width, int height,
                                         GfxImageColorMap *colorMap,
                                         Stream *maskStr,
                                         int maskWidth, int maskHeight,
                                         GfxImageColorMap *maskColorMap);

        //----- OPI functions
        // virtual void opiBegin(GfxState *state, Dict *opiDict);
        // virtual void opiEnd(GfxState *state, Dict *opiDict);

        //----- Type 3 font operators
        // virtual void type3D0(GfxState *state, double wx, double wy) {}
        // virtual void type3D1(GfxState *state, double wx, double wy,
        //                      double llx, double lly, double urx, double ury) {}

        //----- PostScript XObjects
        // virtual void psXObject(Stream *psStream, Stream *level1Stream) {}

        void setPageNum( int nNumPages );
    };
}

extern FILE* g_binary_out;

// note: if you ever hcange Output_t, please keep in mind that the current code
// relies on it being of 8 bit size
typedef char Output_t;
typedef std::vector< Output_t > OutputBuffer;

#endif /* INCLUDED_PDFI_OUTDEV_HXX */