diff options
author | Calvin Morrison <calvin@pobox.com> | 2023-04-05 14:13:39 -0400 |
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committer | Calvin Morrison <calvin@pobox.com> | 2023-04-05 14:13:39 -0400 |
commit | 835e373b3eeaabcd0621ed6798ab500f37982fae (patch) | |
tree | dfa16b0e2e1b4956b38f693220eac4e607802133 /xpdf/PSOutputDev.h |
Diffstat (limited to 'xpdf/PSOutputDev.h')
-rw-r--r-- | xpdf/PSOutputDev.h | 513 |
1 files changed, 513 insertions, 0 deletions
diff --git a/xpdf/PSOutputDev.h b/xpdf/PSOutputDev.h new file mode 100644 index 0000000..b7223c6 --- /dev/null +++ b/xpdf/PSOutputDev.h @@ -0,0 +1,513 @@ +//======================================================================== +// +// PSOutputDev.h +// +// Copyright 1996-2003 Glyph & Cog, LLC +// +//======================================================================== + +#ifndef PSOUTPUTDEV_H +#define PSOUTPUTDEV_H + +#include <aconf.h> + +#ifdef USE_GCC_PRAGMAS +#pragma interface +#endif + +#include <stddef.h> +#include "config.h" +#include "Object.h" +#include "GlobalParams.h" +#include "OutputDev.h" + +class GHash; +class PDFDoc; +class XRef; +class Function; +class GfxPath; +class GfxFont; +class GfxColorSpace; +class GfxDeviceGrayColorSpace; +class GfxCalGrayColorSpace; +class GfxDeviceRGBColorSpace; +class GfxCalRGBColorSpace; +class GfxDeviceCMYKColorSpace; +class GfxLabColorSpace; +class GfxICCBasedColorSpace; +class GfxIndexedColorSpace; +class GfxSeparationColorSpace; +class GfxDeviceNColorSpace; +class GfxFunctionShading; +class GfxAxialShading; +class GfxRadialShading; +class PDFRectangle; +class PSOutCustomColor; +class PSOutputDev; +class PSFontFileInfo; + +//------------------------------------------------------------------------ +// PSOutputDev +//------------------------------------------------------------------------ + +enum PSOutMode { + psModePS, + psModeEPS, + psModeForm +}; + +enum PSFileType { + psFile, // write to file + psPipe, // write to pipe + psStdout, // write to stdout + psGeneric // write to a generic stream +}; + +enum PSOutCustomCodeLocation { + psOutCustomDocSetup, + psOutCustomPageSetup +}; + +typedef void (*PSOutputFunc)(void *stream, const char *data, int len); + +typedef GString *(*PSOutCustomCodeCbk)(PSOutputDev *psOut, + PSOutCustomCodeLocation loc, int n, + void *data); + +class PSOutputDev: public OutputDev { +public: + + // Open a PostScript output file, and write the prolog. + PSOutputDev(char *fileName, PDFDoc *docA, + int firstPageA, int lastPageA, PSOutMode modeA, + int imgLLXA = 0, int imgLLYA = 0, + int imgURXA = 0, int imgURYA = 0, + GBool manualCtrlA = gFalse, + PSOutCustomCodeCbk customCodeCbkA = NULL, + void *customCodeCbkDataA = NULL, + GBool honorUserUnitA = gFalse, + GBool fileNameIsUTF8 = gFalse); + + // Open a PSOutputDev that will write to a generic stream. + PSOutputDev(PSOutputFunc outputFuncA, void *outputStreamA, + PDFDoc *docA, + int firstPageA, int lastPageA, PSOutMode modeA, + int imgLLXA = 0, int imgLLYA = 0, + int imgURXA = 0, int imgURYA = 0, + GBool manualCtrlA = gFalse, + PSOutCustomCodeCbk customCodeCbkA = NULL, + void *customCodeCbkDataA = NULL, + GBool honorUserUnitA = gFalse); + + // Destructor -- writes the trailer and closes the file. + virtual ~PSOutputDev(); + + // Check if file was successfully created. + virtual GBool isOk() { return ok; } + + // Returns false if there have been any errors on the output stream. + GBool checkIO(); + + //---- 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 gFalse; } + + // Does this device use drawChar() or drawString()? + virtual GBool useDrawChar() { return gFalse; } + + // 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 gTrue; } + + // Does this device use drawForm()? If this returns false, + // form-type XObjects will be interpreted (i.e., unrolled). + virtual GBool useDrawForm() { return preload; } + + // Does this device use beginType3Char/endType3Char? Otherwise, + // text in Type 3 fonts will be drawn with drawChar/drawString. + virtual GBool interpretType3Chars() { return gFalse; } + + //----- header/trailer (used only if manualCtrl is true) + + // Write the document-level header. + void writeHeader(PDFRectangle *mediaBox, PDFRectangle *cropBox, + int pageRotate); + + // Write the Xpdf procset. + void writeXpdfProcset(); + + // Write the document-level setup. + void writeDocSetup(Catalog *catalog); + + // Write the trailer for the current page. + void writePageTrailer(); + + // Write the document trailer. + void writeTrailer(); + + //----- initialization and control + + // 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); + + // Start a page. + virtual void startPage(int pageNum, GfxState *state); + + // End a page. + virtual void endPage(); + + //----- save/restore graphics state + virtual void saveState(GfxState *state); + virtual void restoreState(GfxState *state); + + //----- update graphics 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 updateFillColorSpace(GfxState *state); + virtual void updateStrokeColorSpace(GfxState *state); + virtual void updateFillColor(GfxState *state); + virtual void updateStrokeColor(GfxState *state); + virtual void updateFillOverprint(GfxState *state); + virtual void updateStrokeOverprint(GfxState *state); + virtual void updateOverprintMode(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); + 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 void tilingPatternFill(GfxState *state, Gfx *gfx, Object *strRef, + int paintType, int tilingType, Dict *resDict, + double *mat, double *bbox, + int x0, int y0, int x1, int y1, + double xStep, double yStep); + virtual GBool shadedFill(GfxState *state, GfxShading *shading); + + //----- path clipping + virtual void clip(GfxState *state); + virtual void eoClip(GfxState *state); + virtual void clipToStrokePath(GfxState *state); + + //----- text drawing + virtual void drawString(GfxState *state, GString *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, GBool interpolate); + virtual void drawImage(GfxState *state, Object *ref, Stream *str, + int width, int height, GfxImageColorMap *colorMap, + int *maskColors, GBool inlineImg, GBool interpolate); + virtual void drawMaskedImage(GfxState *state, Object *ref, Stream *str, + int width, int height, + GfxImageColorMap *colorMap, + Object *maskRef, Stream *maskStr, + int maskWidth, int maskHeight, + GBool maskInvert, GBool interpolate); + +#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 ref); + + //----- PostScript XObjects + virtual void psXObject(Stream *psStream, Stream *level1Stream); + + //----- miscellaneous + void setImageableArea(int imgLLXA, int imgLLYA, int imgURXA, int imgURYA) + { imgLLX = imgLLXA; imgLLY = imgLLYA; imgURX = imgURXA; imgURY = imgURYA; } + void setOffset(double x, double y) + { tx0 = x; ty0 = y; } + void setScale(double x, double y) + { xScale0 = x; yScale0 = y; } + void setRotate(int rotateA) + { rotate0 = rotateA; } + void setClip(double llx, double lly, double urx, double ury) + { clipLLX0 = llx; clipLLY0 = lly; clipURX0 = urx; clipURY0 = ury; } + void setExpandSmallPages(GBool expand) + { expandSmallPages = expand; } + void setUnderlayCbk(void (*cbk)(PSOutputDev *psOut, void *data), + void *data) + { underlayCbk = cbk; underlayCbkData = data; } + void setOverlayCbk(void (*cbk)(PSOutputDev *psOut, void *data), + void *data) + { overlayCbk = cbk; overlayCbkData = data; } + + void writePSChar(char c); + void writePSBlock(char *s, int len); + void writePS(const char *s); + void writePSFmt(const char *fmt, ...); + void writePSString(GString *s); + void writePSName(const char *s); + +private: + + void init(PSOutputFunc outputFuncA, void *outputStreamA, + PSFileType fileTypeA, PDFDoc *docA, + int firstPageA, int lastPageA, PSOutMode modeA, + int imgLLXA, int imgLLYA, int imgURXA, int imgURYA, + GBool manualCtrlA, GBool honorUserUnitA); + GBool checkIfPageNeedsToBeRasterized(int pg); + void setupResources(Dict *resDict); + void setupFonts(Dict *resDict); + void setupFont(GfxFont *font, Dict *parentResDict); + PSFontFileInfo *setupEmbeddedType1Font(GfxFont *font, Ref *id); + PSFontFileInfo *setupExternalType1Font(GfxFont *font, GString *fileName); + PSFontFileInfo *setupEmbeddedType1CFont(GfxFont *font, Ref *id); + PSFontFileInfo *setupEmbeddedOpenTypeT1CFont(GfxFont *font, Ref *id); + PSFontFileInfo *setupEmbeddedTrueTypeFont(GfxFont *font, Ref *id); + PSFontFileInfo *setupExternalTrueTypeFont(GfxFont *font, GString *fileName, + int fontNum); + PSFontFileInfo *setupEmbeddedCIDType0Font(GfxFont *font, Ref *id); + PSFontFileInfo *setupEmbeddedCIDTrueTypeFont(GfxFont *font, Ref *id, + GBool needVerticalMetrics); + PSFontFileInfo *setupExternalCIDTrueTypeFont(GfxFont *font, + GString *fileName, + int fontNum, + GBool needVerticalMetrics); + PSFontFileInfo *setupEmbeddedOpenTypeCFFFont(GfxFont *font, Ref *id); + PSFontFileInfo *setupExternalOpenTypeCFFFont(GfxFont *font, + GString *fileName); + PSFontFileInfo *setupType3Font(GfxFont *font, Dict *parentResDict); + GString *makePSFontName(GfxFont *font, Ref *id); + GString *fixType1Font(GString *font, int length1, int length2); + GBool splitType1PFA(Guchar *font, int fontSize, + int length1, int length2, + GString *textSection, GString *binSection); + GBool splitType1PFB(Guchar *font, int fontSize, + GString *textSection, GString *binSection); + GString *asciiHexDecodeType1EexecSection(GString *in); + GBool fixType1EexecSection(GString *binSection, GString *out); + GString *copyType1PFA(Guchar *font, int fontSize); + GString *copyType1PFB(Guchar *font, int fontSize); + void renameType1Font(GString *font, GString *name); + void setupDefaultFont(); + void setupImages(Dict *resDict); + void setupImage(Ref id, Stream *str, GBool mask, Array *colorKeyMask); + void setupForms(Dict *resDict); + void setupForm(Object *strRef, Object *strObj); + void addProcessColor(double c, double m, double y, double k); + void addCustomColor(GfxState *state, GfxSeparationColorSpace *sepCS); + void addCustomColors(GfxState *state, GfxDeviceNColorSpace *devnCS); + void tilingPatternFillL1(GfxState *state, Gfx *gfx, Object *strRef, + int paintType, int tilingType, Dict *resDict, + double *mat, double *bbox, + int x0, int y0, int x1, int y1, + double xStep, double yStep); + void tilingPatternFillL2(GfxState *state, Gfx *gfx, Object *strRef, + int paintType, int tilingType, Dict *resDict, + double *mat, double *bbox, + int x0, int y0, int x1, int y1, + double xStep, double yStep); + GBool functionShadedFill(GfxState *state, + GfxFunctionShading *shading); + GBool axialShadedFill(GfxState *state, GfxAxialShading *shading); + GBool radialShadedFill(GfxState *state, GfxRadialShading *shading); + void doPath(GfxPath *path); + void doImageL1(Object *ref, GfxState *state, + GfxImageColorMap *colorMap, + GBool invert, GBool inlineImg, + Stream *str, int width, int height, int len); + void doImageL1Sep(GfxState *state, GfxImageColorMap *colorMap, + GBool invert, GBool inlineImg, + Stream *str, int width, int height, int len); + void doImageL2(Object *ref, GfxState *state, + GfxImageColorMap *colorMap, + GBool invert, GBool inlineImg, + Stream *str, int width, int height, int len, + int *maskColors, Stream *maskStr, + int maskWidth, int maskHeight, GBool maskInvert); + void convertColorKeyMaskToClipRects(GfxImageColorMap *colorMap, + Stream *str, + int width, int height, + int *maskColors); + void convertExplicitMaskToClipRects(Stream *maskStr, + int maskWidth, int maskHeight, + GBool maskInvert); + void doImageL3(Object *ref, GfxState *state, + GfxImageColorMap *colorMap, + GBool invert, GBool inlineImg, + Stream *str, int width, int height, int len, + int *maskColors, Stream *maskStr, + int maskWidth, int maskHeight, GBool maskInvert); + void dumpColorSpaceL2(GfxState *state, GfxColorSpace *colorSpace, + GBool genXform, GBool updateColors, + GBool map01); + void dumpDeviceGrayColorSpace(GfxDeviceGrayColorSpace *cs, + GBool genXform, GBool updateColors, + GBool map01); + void dumpCalGrayColorSpace(GfxCalGrayColorSpace *cs, + GBool genXform, GBool updateColors, + GBool map01); + void dumpDeviceRGBColorSpace(GfxDeviceRGBColorSpace *cs, + GBool genXform, GBool updateColors, + GBool map01); + void dumpCalRGBColorSpace(GfxCalRGBColorSpace *cs, + GBool genXform, GBool updateColors, + GBool map01); + void dumpDeviceCMYKColorSpace(GfxDeviceCMYKColorSpace *cs, + GBool genXform, GBool updateColors, + GBool map01); + void dumpLabColorSpace(GfxLabColorSpace *cs, + GBool genXform, GBool updateColors, + GBool map01); + void dumpICCBasedColorSpace(GfxState *state, GfxICCBasedColorSpace *cs, + GBool genXform, GBool updateColors, + GBool map01); + void dumpIndexedColorSpace(GfxState *state, + GfxIndexedColorSpace *cs, + GBool genXform, GBool updateColors, + GBool map01); + void dumpSeparationColorSpace(GfxState *state, + GfxSeparationColorSpace *cs, + GBool genXform, GBool updateColors, + GBool map01); + void dumpDeviceNColorSpaceL2(GfxState *state, GfxDeviceNColorSpace *cs, + GBool genXform, GBool updateColors, + GBool map01); + void dumpDeviceNColorSpaceL3(GfxState *state, GfxDeviceNColorSpace *cs, + GBool genXform, GBool updateColors, + GBool map01); + GString *createDeviceNTintFunc(GfxDeviceNColorSpace *cs); +#if OPI_SUPPORT + void opiBegin20(GfxState *state, Dict *dict); + void opiBegin13(GfxState *state, Dict *dict); + void opiTransform(GfxState *state, double x0, double y0, + double *x1, double *y1); + GBool getFileSpec(Object *fileSpec, Object *fileName); +#endif + void cvtFunction(Function *func); + GString *filterPSName(GString *name); + void writePSTextLine(GString *s); + + PSLevel level; // PostScript level + PSOutMode mode; // PostScript mode (PS, EPS, form) + int paperWidth; // width of paper, in pts + int paperHeight; // height of paper, in pts + GBool paperMatch; // true if paper size is set to match each page + int imgLLX, imgLLY, // imageable area, in pts + imgURX, imgURY; + GBool preload; // load all images into memory, and + // predefine forms + + PSOutputFunc outputFunc; + void *outputStream; + PSFileType fileType; // file / pipe / stdout + GBool manualCtrl; + int seqPage; // current sequential page number + void (*underlayCbk)(PSOutputDev *psOut, void *data); + void *underlayCbkData; + void (*overlayCbk)(PSOutputDev *psOut, void *data); + void *overlayCbkData; + GString *(*customCodeCbk)(PSOutputDev *psOut, + PSOutCustomCodeLocation loc, int n, + void *data); + void *customCodeCbkData; + GBool honorUserUnit; + + PDFDoc *doc; + XRef *xref; // the xref table for this PDF file + + int firstPage; // first output page + int lastPage; // last output page + char *rasterizePage; // boolean for each page - true if page + // needs to be rasterized + + GList *fontInfo; // info for each font [PSFontInfo] + GHash *fontFileInfo; // info for each font file [PSFontFileInfo] + Ref *imgIDs; // list of image IDs for in-memory images + int imgIDLen; // number of entries in imgIDs array + int imgIDSize; // size of imgIDs array + Ref *formIDs; // list of IDs for predefined forms + int formIDLen; // number of entries in formIDs array + int formIDSize; // size of formIDs array + char *visitedResources; // vector of resource objects already visited + GBool noStateChanges; // true if there have been no state changes + // since the last save + GList *saveStack; // "no state changes" flag for each + // pending save + int numTilingPatterns; // current number of nested tiling patterns + int nextFunc; // next unique number to use for a function + + GList *paperSizes; // list of used paper sizes, if paperMatch + // is true [PSOutPaperSize] + double tx0, ty0; // global translation + double xScale0, yScale0; // global scaling + int rotate0; // rotation angle (0, 90, 180, 270) + double clipLLX0, clipLLY0, + clipURX0, clipURY0; + GBool expandSmallPages; // expand smaller pages to fill paper + double tx, ty; // global translation for current page + double xScale, yScale; // global scaling for current page + int rotate; // rotation angle for current page + double epsX1, epsY1, // EPS bounding box (unrotated) + epsX2, epsY2; + + GString *embFontList; // resource comments for embedded fonts + + int processColors; // used process colors + PSOutCustomColor // used custom colors + *customColors; + + GBool haveTextClip; // set if text has been drawn with a + // clipping render mode + + GBool inType3Char; // inside a Type 3 CharProc + GString *t3String; // Type 3 content string + double t3WX, t3WY, // Type 3 character parameters + t3LLX, t3LLY, t3URX, t3URY; + GBool t3FillColorOnly; // operators should only use the fill color + GBool t3Cacheable; // cleared if char is not cacheable + GBool t3NeedsRestore; // set if a 'q' operator was issued + +#if OPI_SUPPORT + int opi13Nest; // nesting level of OPI 1.3 objects + int opi20Nest; // nesting level of OPI 2.0 objects +#endif + + GBool ok; // set up ok? + + friend class WinPDFPrinter; +}; + +#endif |