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395 lines
14 KiB
395 lines
14 KiB
//========================================================================
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//
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// PSOutputDev.h
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//
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// Copyright 1996-2003 Glyph & Cog, LLC
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//
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//========================================================================
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#ifndef PSOUTPUTDEV_H
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#define PSOUTPUTDEV_H
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#include <aconf.h>
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#ifdef USE_GCC_PRAGMAS
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#pragma interface
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#endif
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#include <stddef.h>
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#include "config.h"
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#include "Object.h"
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#include "GlobalParams.h"
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#include "OutputDev.h"
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class Function;
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class GfxPath;
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class GfxFont;
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class GfxColorSpace;
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class GfxSeparationColorSpace;
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class PDFRectangle;
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struct PSFont8Info;
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struct PSFont16Enc;
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class PSOutCustomColor;
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//------------------------------------------------------------------------
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// PSOutputDev
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//------------------------------------------------------------------------
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enum PSOutMode {
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psModePS,
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psModeEPS,
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psModeForm
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};
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enum PSFileType {
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psFile, // write to file
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psPipe, // write to pipe
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psStdout, // write to stdout
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psGeneric // write to a generic stream
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};
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typedef void (*PSOutputFunc)(void *stream, char *data, int len);
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class PSOutputDev: public OutputDev {
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public:
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// Open a PostScript output file, and write the prolog.
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PSOutputDev(char *fileName, XRef *xrefA, Catalog *catalog,
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int firstPage, int lastPage, PSOutMode modeA,
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int imgLLXA = 0, int imgLLYA = 0,
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int imgURXA = 0, int imgURYA = 0,
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GBool manualCtrlA = gFalse);
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// Open a PSOutputDev that will write to a generic stream.
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PSOutputDev(PSOutputFunc outputFuncA, void *outputStreamA,
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XRef *xrefA, Catalog *catalog,
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int firstPage, int lastPage, PSOutMode modeA,
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int imgLLXA = 0, int imgLLYA = 0,
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int imgURXA = 0, int imgURYA = 0,
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GBool manualCtrlA = gFalse);
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// Destructor -- writes the trailer and closes the file.
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virtual ~PSOutputDev();
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// Check if file was successfully created.
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virtual GBool isOk() { return ok; }
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//---- get info about output device
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// Does this device use upside-down coordinates?
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// (Upside-down means (0,0) is the top left corner of the page.)
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virtual GBool upsideDown() { return gFalse; }
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// Does this device use drawChar() or drawString()?
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virtual GBool useDrawChar() { return gFalse; }
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// Does this device use tilingPatternFill()? If this returns false,
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// tiling pattern fills will be reduced to a series of other drawing
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// operations.
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virtual GBool useTilingPatternFill() { return gTrue; }
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// Does this device use functionShadedFill(), axialShadedFill(), and
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// radialShadedFill()? If this returns false, these shaded fills
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// will be reduced to a series of other drawing operations.
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virtual GBool useShadedFills()
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{ return level >= psLevel2; }
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// Does this device use drawForm()? If this returns false,
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// form-type XObjects will be interpreted (i.e., unrolled).
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virtual GBool useDrawForm() { return preload; }
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// Does this device use beginType3Char/endType3Char? Otherwise,
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// text in Type 3 fonts will be drawn with drawChar/drawString.
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virtual GBool interpretType3Chars() { return gFalse; }
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//----- header/trailer (used only if manualCtrl is true)
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// Write the document-level header.
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void writeHeader(int firstPage, int lastPage,
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PDFRectangle *mediaBox, PDFRectangle *cropBox,
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int pageRotate);
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// Write the Xpdf procset.
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void writeXpdfProcset();
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// Write the document-level setup.
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void writeDocSetup(Catalog *catalog, int firstPage, int lastPage);
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// Write the trailer for the current page.
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void writePageTrailer();
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// Write the document trailer.
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void writeTrailer();
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//----- initialization and control
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// Check to see if a page slice should be displayed. If this
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// returns false, the page display is aborted. Typically, an
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// OutputDev will use some alternate means to display the page
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// before returning false.
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virtual GBool checkPageSlice(Page *page, double hDPI, double vDPI,
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int rotate, GBool useMediaBox, GBool crop,
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int sliceX, int sliceY, int sliceW, int sliceH,
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GBool printing, Catalog *catalog,
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GBool (*abortCheckCbk)(void *data) = NULL,
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void *abortCheckCbkData = NULL);
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// Start a page.
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virtual void startPage(int pageNum, GfxState *state);
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// End a page.
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virtual void endPage();
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//----- save/restore graphics state
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virtual void saveState(GfxState *state);
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virtual void restoreState(GfxState *state);
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//----- update graphics state
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virtual void updateCTM(GfxState *state, double m11, double m12,
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double m21, double m22, double m31, double m32);
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virtual void updateLineDash(GfxState *state);
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virtual void updateFlatness(GfxState *state);
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virtual void updateLineJoin(GfxState *state);
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virtual void updateLineCap(GfxState *state);
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virtual void updateMiterLimit(GfxState *state);
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virtual void updateLineWidth(GfxState *state);
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virtual void updateFillColorSpace(GfxState *state);
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virtual void updateStrokeColorSpace(GfxState *state);
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virtual void updateFillColor(GfxState *state);
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virtual void updateStrokeColor(GfxState *state);
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virtual void updateFillOverprint(GfxState *state);
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virtual void updateStrokeOverprint(GfxState *state);
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virtual void updateTransfer(GfxState *state);
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//----- update text state
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virtual void updateFont(GfxState *state);
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virtual void updateTextMat(GfxState *state);
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virtual void updateCharSpace(GfxState *state);
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virtual void updateRender(GfxState *state);
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virtual void updateRise(GfxState *state);
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virtual void updateWordSpace(GfxState *state);
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virtual void updateHorizScaling(GfxState *state);
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virtual void updateTextPos(GfxState *state);
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virtual void updateTextShift(GfxState *state, double shift);
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//----- path painting
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virtual void stroke(GfxState *state);
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virtual void fill(GfxState *state);
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virtual void eoFill(GfxState *state);
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virtual void tilingPatternFill(GfxState *state, Object *str,
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int paintType, Dict *resDict,
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double *mat, double *bbox,
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int x0, int y0, int x1, int y1,
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double xStep, double yStep);
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virtual GBool functionShadedFill(GfxState *state,
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GfxFunctionShading *shading);
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virtual GBool axialShadedFill(GfxState *state, GfxAxialShading *shading);
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virtual GBool radialShadedFill(GfxState *state, GfxRadialShading *shading);
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//----- path clipping
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virtual void clip(GfxState *state);
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virtual void eoClip(GfxState *state);
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virtual void clipToStrokePath(GfxState *state);
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//----- text drawing
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virtual void drawString(GfxState *state, GString *s);
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virtual void endTextObject(GfxState *state);
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//----- image drawing
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virtual void drawImageMask(GfxState *state, Object *ref, Stream *str,
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int width, int height, GBool invert,
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GBool inlineImg);
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virtual void drawImage(GfxState *state, Object *ref, Stream *str,
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int width, int height, GfxImageColorMap *colorMap,
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int *maskColors, GBool inlineImg);
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virtual void drawMaskedImage(GfxState *state, Object *ref, Stream *str,
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int width, int height,
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GfxImageColorMap *colorMap,
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Stream *maskStr, int maskWidth, int maskHeight,
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GBool maskInvert);
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#if OPI_SUPPORT
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//----- OPI functions
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virtual void opiBegin(GfxState *state, Dict *opiDict);
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virtual void opiEnd(GfxState *state, Dict *opiDict);
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#endif
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//----- Type 3 font operators
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virtual void type3D0(GfxState *state, double wx, double wy);
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virtual void type3D1(GfxState *state, double wx, double wy,
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double llx, double lly, double urx, double ury);
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//----- form XObjects
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virtual void drawForm(Ref ref);
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//----- PostScript XObjects
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virtual void psXObject(Stream *psStream, Stream *level1Stream);
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//----- miscellaneous
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void setOffset(double x, double y)
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{ tx0 = x; ty0 = y; }
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void setScale(double x, double y)
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{ xScale0 = x; yScale0 = y; }
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void setRotate(int rotateA)
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{ rotate0 = rotateA; }
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void setClip(double llx, double lly, double urx, double ury)
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{ clipLLX0 = llx; clipLLY0 = lly; clipURX0 = urx; clipURY0 = ury; }
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void setUnderlayCbk(void (*cbk)(PSOutputDev *psOut, void *data),
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void *data)
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{ underlayCbk = cbk; underlayCbkData = data; }
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void setOverlayCbk(void (*cbk)(PSOutputDev *psOut, void *data),
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void *data)
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{ overlayCbk = cbk; overlayCbkData = data; }
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private:
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void init(PSOutputFunc outputFuncA, void *outputStreamA,
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PSFileType fileTypeA, XRef *xrefA, Catalog *catalog,
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int firstPage, int lastPage, PSOutMode modeA,
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int imgLLXA, int imgLLYA, int imgURXA, int imgURYA,
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GBool manualCtrlA);
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void setupResources(Dict *resDict);
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void setupFonts(Dict *resDict);
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void setupFont(GfxFont *font, Dict *parentResDict);
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void setupEmbeddedType1Font(Ref *id, GString *psName);
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void setupExternalType1Font(GString *fileName, GString *psName);
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void setupEmbeddedType1CFont(GfxFont *font, Ref *id, GString *psName);
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void setupEmbeddedOpenTypeT1CFont(GfxFont *font, Ref *id, GString *psName);
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void setupEmbeddedTrueTypeFont(GfxFont *font, Ref *id, GString *psName);
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void setupExternalTrueTypeFont(GfxFont *font, GString *psName);
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void setupEmbeddedCIDType0Font(GfxFont *font, Ref *id, GString *psName);
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void setupEmbeddedCIDTrueTypeFont(GfxFont *font, Ref *id, GString *psName,
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GBool needVerticalMetrics);
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void setupEmbeddedOpenTypeCFFFont(GfxFont *font, Ref *id, GString *psName);
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void setupType3Font(GfxFont *font, GString *psName, Dict *parentResDict);
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void setupImages(Dict *resDict);
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void setupImage(Ref id, Stream *str);
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void setupForms(Dict *resDict);
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void setupForm(Ref id, Object *strObj);
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void addProcessColor(double c, double m, double y, double k);
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void addCustomColor(GfxSeparationColorSpace *sepCS);
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void doPath(GfxPath *path);
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void doImageL1(Object *ref, GfxImageColorMap *colorMap,
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GBool invert, GBool inlineImg,
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Stream *str, int width, int height, int len);
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void doImageL1Sep(GfxImageColorMap *colorMap,
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GBool invert, GBool inlineImg,
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Stream *str, int width, int height, int len);
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void doImageL2(Object *ref, GfxImageColorMap *colorMap,
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GBool invert, GBool inlineImg,
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Stream *str, int width, int height, int len,
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int *maskColors, Stream *maskStr,
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int maskWidth, int maskHeight, GBool maskInvert);
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void doImageL3(Object *ref, GfxImageColorMap *colorMap,
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GBool invert, GBool inlineImg,
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Stream *str, int width, int height, int len,
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int *maskColors, Stream *maskStr,
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int maskWidth, int maskHeight, GBool maskInvert);
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void dumpColorSpaceL2(GfxColorSpace *colorSpace,
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GBool genXform, GBool updateColors,
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GBool map01);
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#if OPI_SUPPORT
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void opiBegin20(GfxState *state, Dict *dict);
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void opiBegin13(GfxState *state, Dict *dict);
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void opiTransform(GfxState *state, double x0, double y0,
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double *x1, double *y1);
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GBool getFileSpec(Object *fileSpec, Object *fileName);
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#endif
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void cvtFunction(Function *func);
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void writePSChar(char c);
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void writePS(char *s);
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void writePSFmt(const char *fmt, ...);
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void writePSString(GString *s);
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void writePSName(char *s);
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GString *filterPSName(GString *name);
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void writePSTextLine(GString *s);
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PSLevel level; // PostScript level (1, 2, separation)
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PSOutMode mode; // PostScript mode (PS, EPS, form)
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int paperWidth; // width of paper, in pts
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int paperHeight; // height of paper, in pts
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int imgLLX, imgLLY, // imageable area, in pts
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imgURX, imgURY;
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GBool preload; // load all images into memory, and
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// predefine forms
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PSOutputFunc outputFunc;
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void *outputStream;
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PSFileType fileType; // file / pipe / stdout
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GBool manualCtrl;
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int seqPage; // current sequential page number
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void (*underlayCbk)(PSOutputDev *psOut, void *data);
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void *underlayCbkData;
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void (*overlayCbk)(PSOutputDev *psOut, void *data);
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void *overlayCbkData;
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XRef *xref; // the xref table for this PDF file
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Ref *fontIDs; // list of object IDs of all used fonts
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int fontIDLen; // number of entries in fontIDs array
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int fontIDSize; // size of fontIDs array
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Ref *fontFileIDs; // list of object IDs of all embedded fonts
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int fontFileIDLen; // number of entries in fontFileIDs array
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int fontFileIDSize; // size of fontFileIDs array
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GString **fontFileNames; // list of names of all embedded external fonts
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int fontFileNameLen; // number of entries in fontFileNames array
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int fontFileNameSize; // size of fontFileNames array
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int nextTrueTypeNum; // next unique number to append to a TrueType
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// font name
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PSFont8Info *font8Info; // info for 8-bit fonts
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int font8InfoLen; // number of entries in font8Info array
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int font8InfoSize; // size of font8Info array
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PSFont16Enc *font16Enc; // encodings for substitute 16-bit fonts
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int font16EncLen; // number of entries in font16Enc array
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int font16EncSize; // size of font16Enc array
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Ref *imgIDs; // list of image IDs for in-memory images
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int imgIDLen; // number of entries in imgIDs array
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int imgIDSize; // size of imgIDs array
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Ref *formIDs; // list of IDs for predefined forms
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int formIDLen; // number of entries in formIDs array
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int formIDSize; // size of formIDs array
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GList *xobjStack; // stack of XObject dicts currently being
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// processed
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int numSaves; // current number of gsaves
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int numTilingPatterns; // current number of nested tiling patterns
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int nextFunc; // next unique number to use for a function
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double tx0, ty0; // global translation
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double xScale0, yScale0; // global scaling
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int rotate0; // rotation angle (0, 90, 180, 270)
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double clipLLX0, clipLLY0,
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clipURX0, clipURY0;
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double tx, ty; // global translation for current page
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double xScale, yScale; // global scaling for current page
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int rotate; // rotation angle for current page
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double epsX1, epsY1, // EPS bounding box (unrotated)
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epsX2, epsY2;
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GString *embFontList; // resource comments for embedded fonts
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int processColors; // used process colors
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PSOutCustomColor // used custom colors
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*customColors;
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GBool haveTextClip; // set if text has been drawn with a
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// clipping render mode
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GBool inType3Char; // inside a Type 3 CharProc
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GString *t3String; // Type 3 content string
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double t3WX, t3WY, // Type 3 character parameters
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t3LLX, t3LLY, t3URX, t3URY;
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GBool t3Cacheable; // cleared if char is not cacheable
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GBool t3NeedsRestore; // set if a 'q' operator was issued
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#if OPI_SUPPORT
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int opi13Nest; // nesting level of OPI 1.3 objects
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int opi20Nest; // nesting level of OPI 2.0 objects
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#endif
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GBool ok; // set up ok?
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friend class WinPDFPrinter;
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};
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#endif
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