//======================================================================== // // OutputDev.h // // Copyright 1996-2003 Glyph & Cog, LLC // //======================================================================== //======================================================================== // // Modified under the Poppler project - http://poppler.freedesktop.org // // All changes made under the Poppler project to this file are licensed // under GPL version 2 or later // // Copyright (C) 2005 Jonathan Blandford // Copyright (C) 2006 Thorkild Stray // Copyright (C) 2007 Jeff Muizelaar // Copyright (C) 2007, 2011 Adrian Johnson // Copyright (C) 2009-2013 Thomas Freitag // Copyright (C) 2009, 2011 Carlos Garcia Campos // Copyright (C) 2009, 2012, 2013 Albert Astals Cid // Copyright (C) 2010 Christian Feuersänger // Copyright (C) 2012 Fabio D'Urso // Copyright (C) 2012 William Bader // // To see a description of the changes please see the Changelog file that // came with your tarball or type make ChangeLog if you are building from git // //======================================================================== #ifndef OUTPUTDEV_H #define OUTPUTDEV_H #ifdef USE_GCC_PRAGMAS #pragma interface #endif #include "poppler-config.h" #include "goo/gtypes.h" #include "CharTypes.h" #include "Object.h" #include "PopplerCache.h" class Annot; class Dict; class GooHash; class GooString; class GfxState; class Gfx; struct GfxColor; class GfxColorSpace; class GfxImageColorMap; class GfxFunctionShading; class GfxAxialShading; class GfxGouraudTriangleShading; class GfxPatchMeshShading; class GfxRadialShading; class GfxGouraudTriangleShading; class GfxPatchMeshShading; class Stream; class Links; class AnnotLink; class Catalog; class Page; class Function; //------------------------------------------------------------------------ // OutputDev //------------------------------------------------------------------------ class OutputDev { public: // Constructor. OutputDev() #ifdef USE_CMS : iccColorSpaceCache(5) #endif { profileHash = NULL; } // Destructor. virtual ~OutputDev() {} //----- 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() = 0; // Does this device use drawChar() or drawString()? virtual GBool useDrawChar() = 0; // Does this device use tilingPatternFill()? If this returns false, // tiling pattern fills will be reduced to a series of other drawing // operations. virtual GBool useTilingPatternFill() { return gFalse; } // Does this device support specific shading types? // see gouraudTriangleShadedFill() and patchMeshShadedFill() virtual GBool useShadedFills(int type) { return gFalse; } // Does this device use FillColorStop()? virtual GBool useFillColorStop() { return gFalse; } // Does this device use drawForm()? If this returns false, // form-type XObjects will be interpreted (i.e., unrolled). virtual GBool useDrawForm() { return gFalse; } // Does this device use beginType3Char/endType3Char? Otherwise, // text in Type 3 fonts will be drawn with drawChar/drawString. virtual GBool interpretType3Chars() = 0; // Does this device need non-text content? virtual GBool needNonText() { return gTrue; } // Does this device require incCharCount to be called for text on // non-shown layers? virtual GBool needCharCount() { return gFalse; } // Does this device need to clip pages to the crop box even when the // box is the crop box? virtual GBool needClipToCropBox() { return gFalse; } //----- initialization and control // Set default transform matrix. virtual void setDefaultCTM(double *ctm); // Check to see if a page slice should be displayed. If this // returns false, the page display is aborted. Typically, an // OutputDev will use some alternate means to display the page // before returning false. virtual GBool checkPageSlice(Page *page, double hDPI, double vDPI, int rotate, GBool useMediaBox, GBool crop, int sliceX, int sliceY, int sliceW, int sliceH, GBool printing, GBool (* abortCheckCbk)(void *data) = NULL, void * abortCheckCbkData = NULL, GBool (*annotDisplayDecideCbk)(Annot *annot, void *user_data) = NULL, void *annotDisplayDecideCbkData = NULL) { return gTrue; } // 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); double *getDefCTM() { return defCTM; } double *getDefICTM() { return defICTM; } //----- 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 updateStrokeAdjust(GfxState * /*state*/) {} virtual void updateAlphaIsShape(GfxState * /*state*/) {} virtual void updateTextKnockout(GfxState * /*state*/) {} virtual void updateFillColorSpace(GfxState * /*state*/) {} virtual void updateStrokeColorSpace(GfxState * /*state*/) {} virtual void updateFillColor(GfxState * /*state*/) {} virtual void updateStrokeColor(GfxState * /*state*/) {} virtual void updateBlendMode(GfxState * /*state*/) {} virtual void updateFillOpacity(GfxState * /*state*/) {} virtual void updateStrokeOpacity(GfxState * /*state*/) {} virtual void updateFillOverprint(GfxState * /*state*/) {} virtual void updateStrokeOverprint(GfxState * /*state*/) {} virtual void updateOverprintMode(GfxState * /*state*/) {} virtual void updateTransfer(GfxState * /*state*/) {} virtual void updateFillColorStop(GfxState * /*state*/, double /*offset*/) {} //----- 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*/) {} virtual void saveTextPos(GfxState * /*state*/) {} virtual void restoreTextPos(GfxState * /*state*/) {} //----- path painting virtual void stroke(GfxState * /*state*/) {} virtual void fill(GfxState * /*state*/) {} virtual void eoFill(GfxState * /*state*/) {} virtual GBool tilingPatternFill(GfxState * /*state*/, Gfx * /*gfx*/, Catalog * /*cat*/, Object * /*str*/, double * /*pmat*/, int /*paintType*/, int /*tilingType*/, Dict * /*resDict*/, double * /*mat*/, double * /*bbox*/, int /*x0*/, int /*y0*/, int /*x1*/, int /*y1*/, double /*xStep*/, double /*yStep*/) { return gFalse; } virtual GBool functionShadedFill(GfxState * /*state*/, GfxFunctionShading * /*shading*/) { return gFalse; } virtual GBool axialShadedFill(GfxState * /*state*/, GfxAxialShading * /*shading*/, double /*tMin*/, double /*tMax*/) { return gFalse; } virtual GBool axialShadedSupportExtend(GfxState * /*state*/, GfxAxialShading * /*shading*/) { return gFalse; } virtual GBool radialShadedFill(GfxState * /*state*/, GfxRadialShading * /*shading*/, double /*sMin*/, double /*sMax*/) { return gFalse; } virtual GBool radialShadedSupportExtend(GfxState * /*state*/, GfxRadialShading * /*shading*/) { return gFalse; } virtual GBool gouraudTriangleShadedFill(GfxState *state, GfxGouraudTriangleShading *shading) { return gFalse; } virtual GBool patchMeshShadedFill(GfxState *state, GfxPatchMeshShading *shading) { return gFalse; } //----- path clipping virtual void clip(GfxState * /*state*/) {} virtual void eoClip(GfxState * /*state*/) {} virtual void clipToStrokePath(GfxState * /*state*/) {} //----- text drawing virtual void beginStringOp(GfxState * /*state*/) {} virtual void endStringOp(GfxState * /*state*/) {} virtual void beginString(GfxState * /*state*/, GooString * /*s*/) {} virtual void endString(GfxState * /*state*/) {} 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 GBool beginType3Char(GfxState * /*state*/, double /*x*/, double /*y*/, double /*dx*/, double /*dy*/, CharCode /*code*/, Unicode * /*u*/, int /*uLen*/); virtual void endType3Char(GfxState * /*state*/) {} virtual void beginTextObject(GfxState * /*state*/) {} virtual void endTextObject(GfxState * /*state*/) {} virtual void incCharCount(int /*nChars*/) {} virtual void beginActualText(GfxState * /*state*/, GooString * /*text*/ ) {} virtual void endActualText(GfxState * /*state*/) {} //----- image drawing virtual void drawImageMask(GfxState *state, Object *ref, Stream *str, int width, int height, GBool invert, GBool interpolate, GBool inlineImg); virtual void setSoftMaskFromImageMask(GfxState *state, Object *ref, Stream *str, int width, int height, GBool invert, GBool inlineImg, double *baseMatrix); virtual void unsetSoftMaskFromImageMask(GfxState *state, double *baseMatrix); virtual void drawImage(GfxState *state, Object *ref, Stream *str, int width, int height, GfxImageColorMap *colorMap, GBool interpolate, int *maskColors, GBool inlineImg); virtual void drawMaskedImage(GfxState *state, Object *ref, Stream *str, int width, int height, GfxImageColorMap *colorMap, GBool interpolate, Stream *maskStr, int maskWidth, int maskHeight, GBool maskInvert, GBool maskInterpolate); virtual void drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str, int width, int height, GfxImageColorMap *colorMap, GBool interpolate, Stream *maskStr, int maskWidth, int maskHeight, GfxImageColorMap *maskColorMap, GBool maskInterpolate); //----- grouping operators virtual void endMarkedContent(GfxState *state); virtual void beginMarkedContent(char *name, Dict *properties); virtual void markPoint(char *name); virtual void markPoint(char *name, Dict *properties); #if OPI_SUPPORT //----- OPI functions virtual void opiBegin(GfxState *state, Dict *opiDict); virtual void opiEnd(GfxState *state, Dict *opiDict); #endif //----- 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*/) {} //----- form XObjects virtual void drawForm(Ref /*id*/) {} //----- PostScript XObjects virtual void psXObject(Stream * /*psStream*/, Stream * /*level1Stream*/) {} //----- Profiling virtual void startProfile(); virtual GooHash *getProfileHash() {return profileHash; } virtual GooHash *endProfile(); //----- transparency groups and soft masks virtual GBool checkTransparencyGroup(GfxState * /*state*/, GBool /*knockout*/) { return gTrue; } virtual void beginTransparencyGroup(GfxState * /*state*/, double * /*bbox*/, GfxColorSpace * /*blendingColorSpace*/, GBool /*isolated*/, GBool /*knockout*/, GBool /*forSoftMask*/) {} virtual void endTransparencyGroup(GfxState * /*state*/) {} virtual void paintTransparencyGroup(GfxState * /*state*/, double * /*bbox*/) {} virtual void setSoftMask(GfxState * /*state*/, double * /*bbox*/, GBool /*alpha*/, Function * /*transferFunc*/, GfxColor * /*backdropColor*/) {} virtual void clearSoftMask(GfxState * /*state*/) {} //----- links virtual void processLink(AnnotLink * /*link*/) {} #if 1 //~tmp: turn off anti-aliasing temporarily virtual GBool getVectorAntialias() { return gFalse; } virtual void setVectorAntialias(GBool /*vaa*/) {} #endif #ifdef USE_CMS PopplerCache *getIccColorSpaceCache(); #endif private: double defCTM[6]; // default coordinate transform matrix double defICTM[6]; // inverse of default CTM GooHash *profileHash; #ifdef USE_CMS PopplerCache iccColorSpaceCache; #endif }; #endif