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Diffstat (limited to 'kpdf/xpdf/xpdf/OutputDev.h')
| -rw-r--r-- | kpdf/xpdf/xpdf/OutputDev.h | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/kpdf/xpdf/xpdf/OutputDev.h b/kpdf/xpdf/xpdf/OutputDev.h new file mode 100644 index 00000000..a4ee37b1 --- /dev/null +++ b/kpdf/xpdf/xpdf/OutputDev.h @@ -0,0 +1,250 @@ +//======================================================================== +// +// OutputDev.h +// +// Copyright 1996-2003 Glyph & Cog, LLC +// +//======================================================================== + +#ifndef OUTPUTDEV_H +#define OUTPUTDEV_H + +#include <aconf.h> + +#ifdef USE_GCC_PRAGMAS +#pragma interface +#endif + +#include "gtypes.h" +#include "CharTypes.h" + +class GString; +class GfxState; +struct GfxColor; +class GfxColorSpace; +class GfxImageColorMap; +class GfxFunctionShading; +class GfxAxialShading; +class GfxRadialShading; +class Stream; +class Links; +class Link; +class Catalog; +class Page; +class Function; + +//------------------------------------------------------------------------ +// OutputDev +//------------------------------------------------------------------------ + +class OutputDev { +public: + + // Constructor. + OutputDev() {} + + // 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 use functionShadedFill(), axialShadedFill(), and + // radialShadedFill()? If this returns false, these shaded fills + // will be reduced to a series of other drawing operations. + virtual GBool useShadedFills() { 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; } + + //----- 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*/, Catalog * /*catalog*/, + GBool (* /*abortCheckCbk*/)(void *data) = NULL, + void * /*abortCheckCbkData*/ = NULL) + { return gTrue; } + + // Start a page. + virtual void startPage(int /*pageNum*/, GfxState * /*state*/) {} + + // 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 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 updateTransfer(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*/) {} + virtual void tilingPatternFill(GfxState * /*state*/, Object * /*str*/, + int /*paintType*/, Dict * /*resDict*/, + double * /*mat*/, double * /*bbox*/, + int /*x0*/, int /*y0*/, int /*x1*/, int /*y1*/, + double /*xStep*/, double /*yStep*/) {} + virtual GBool functionShadedFill(GfxState * /*state*/, + GfxFunctionShading * /*shading*/) + { return gFalse; } + virtual GBool axialShadedFill(GfxState * /*state*/, GfxAxialShading * /*shading*/) + { return gFalse; } + virtual GBool radialShadedFill(GfxState * /*state*/, GfxRadialShading * /*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*/, GString * /*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*/, GString * /*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 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); + +#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*/) {} + + //----- transparency groups and soft masks + 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(Link * /*link*/, Catalog * /*catalog*/) {} + +#if 1 //~tmp: turn off anti-aliasing temporarily + virtual GBool getVectorAntialias() { return gFalse; } + virtual void setVectorAntialias(GBool /*vaa*/) {} +#endif + +private: + + double defCTM[6]; // default coordinate transform matrix + double defICTM[6]; // inverse of default CTM +}; + +#endif |