--- /dev/null
+//========================================================================
+//
+// Gfx.h
+//
+// Copyright 1996-2003 Glyph & Cog, LLC
+//
+//========================================================================
+
+#ifndef GFX_H
+#define GFX_H
+
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
+#pragma interface
+#endif
+
+#include "gtypes.h"
+
+class GString;
+class XRef;
+class Array;
+class Stream;
+class Parser;
+class Dict;
+class OutputDev;
+class GfxFontDict;
+class GfxFont;
+class GfxPattern;
+class GfxTilingPattern;
+class GfxShadingPattern;
+class GfxShading;
+class GfxFunctionShading;
+class GfxAxialShading;
+class GfxRadialShading;
+class GfxGouraudTriangleShading;
+class GfxPatchMeshShading;
+struct GfxPatch;
+class GfxState;
+struct GfxColor;
+class Gfx;
+class PDFRectangle;
+
+//------------------------------------------------------------------------
+// Gfx
+//------------------------------------------------------------------------
+
+enum GfxClipType {
+ clipNone,
+ clipNormal,
+ clipEO
+};
+
+enum TchkType {
+ tchkBool, // boolean
+ tchkInt, // integer
+ tchkNum, // number (integer or real)
+ tchkString, // string
+ tchkName, // name
+ tchkArray, // array
+ tchkProps, // properties (dictionary or name)
+ tchkSCN, // scn/SCN args (number of name)
+ tchkNone // used to avoid empty initializer lists
+};
+
+#define maxArgs 8
+
+struct Operator {
+ char name[4];
+ int numArgs;
+ TchkType tchk[maxArgs];
+ void (Gfx::*func)(Object args[], int numArgs);
+};
+
+class GfxResources {
+public:
+
+ GfxResources(XRef *xref, Dict *resDict, GfxResources *nextA);
+ ~GfxResources();
+
+ GfxFont *lookupFont(char *name);
+ GBool lookupXObject(char *name, Object *obj);
+ GBool lookupXObjectNF(char *name, Object *obj);
+ void lookupColorSpace(char *name, Object *obj);
+ GfxPattern *lookupPattern(char *name);
+ GfxShading *lookupShading(char *name);
+ GBool lookupGState(char *name, Object *obj);
+
+ GfxResources *getNext() { return next; }
+
+private:
+
+ GfxFontDict *fonts;
+ Object xObjDict;
+ Object colorSpaceDict;
+ Object patternDict;
+ Object shadingDict;
+ Object gStateDict;
+ GfxResources *next;
+};
+
+class Gfx {
+public:
+
+ // Constructor for regular output.
+ Gfx(XRef *xrefA, OutputDev *outA, int pageNum, Dict *resDict,
+ double hDPI, double vDPI, PDFRectangle *box,
+ PDFRectangle *cropBox, int rotate,
+ GBool (*abortCheckCbkA)(void *data) = NULL,
+ void *abortCheckCbkDataA = NULL);
+
+ // Constructor for a sub-page object.
+ Gfx(XRef *xrefA, OutputDev *outA, Dict *resDict,
+ PDFRectangle *box, PDFRectangle *cropBox,
+ GBool (*abortCheckCbkA)(void *data) = NULL,
+ void *abortCheckCbkDataA = NULL);
+
+ ~Gfx();
+
+ // Interpret a stream or array of streams.
+ void display(Object *obj, GBool topLevel = gTrue);
+
+ // Display an annotation, given its appearance (a Form XObject) and
+ // bounding box (in default user space).
+ void doAnnot(Object *str, double xMin, double yMin,
+ double xMax, double yMax);
+
+ // Save graphics state.
+ void saveState();
+
+ // Restore graphics state.
+ void restoreState();
+
+ // Get the current graphics state object.
+ GfxState *getState() { return state; }
+
+private:
+
+ XRef *xref; // the xref table for this PDF file
+ OutputDev *out; // output device
+ GBool subPage; // is this a sub-page object?
+ GBool printCommands; // print the drawing commands (for debugging)
+ GfxResources *res; // resource stack
+ int updateLevel;
+
+ GfxState *state; // current graphics state
+ GBool fontChanged; // set if font or text matrix has changed
+ GfxClipType clip; // do a clip?
+ int ignoreUndef; // current BX/EX nesting level
+ double baseMatrix[6]; // default matrix for most recent
+ // page/form/pattern
+ int formDepth;
+
+ Parser *parser; // parser for page content stream(s)
+
+ GBool // callback to check for an abort
+ (*abortCheckCbk)(void *data);
+ void *abortCheckCbkData;
+
+ static Operator opTab[]; // table of operators
+
+ void go(GBool topLevel);
+ void execOp(Object *cmd, Object args[], int numArgs);
+ Operator *findOp(char *name);
+ GBool checkArg(Object *arg, TchkType type);
+ int getPos();
+
+ // graphics state operators
+ void opSave(Object args[], int numArgs);
+ void opRestore(Object args[], int numArgs);
+ void opConcat(Object args[], int numArgs);
+ void opSetDash(Object args[], int numArgs);
+ void opSetFlat(Object args[], int numArgs);
+ void opSetLineJoin(Object args[], int numArgs);
+ void opSetLineCap(Object args[], int numArgs);
+ void opSetMiterLimit(Object args[], int numArgs);
+ void opSetLineWidth(Object args[], int numArgs);
+ void opSetExtGState(Object args[], int numArgs);
+ void opSetRenderingIntent(Object args[], int numArgs);
+
+ // color operators
+ void opSetFillGray(Object args[], int numArgs);
+ void opSetStrokeGray(Object args[], int numArgs);
+ void opSetFillCMYKColor(Object args[], int numArgs);
+ void opSetStrokeCMYKColor(Object args[], int numArgs);
+ void opSetFillRGBColor(Object args[], int numArgs);
+ void opSetStrokeRGBColor(Object args[], int numArgs);
+ void opSetFillColorSpace(Object args[], int numArgs);
+ void opSetStrokeColorSpace(Object args[], int numArgs);
+ void opSetFillColor(Object args[], int numArgs);
+ void opSetStrokeColor(Object args[], int numArgs);
+ void opSetFillColorN(Object args[], int numArgs);
+ void opSetStrokeColorN(Object args[], int numArgs);
+
+ // path segment operators
+ void opMoveTo(Object args[], int numArgs);
+ void opLineTo(Object args[], int numArgs);
+ void opCurveTo(Object args[], int numArgs);
+ void opCurveTo1(Object args[], int numArgs);
+ void opCurveTo2(Object args[], int numArgs);
+ void opRectangle(Object args[], int numArgs);
+ void opClosePath(Object args[], int numArgs);
+
+ // path painting operators
+ void opEndPath(Object args[], int numArgs);
+ void opStroke(Object args[], int numArgs);
+ void opCloseStroke(Object args[], int numArgs);
+ void opFill(Object args[], int numArgs);
+ void opEOFill(Object args[], int numArgs);
+ void opFillStroke(Object args[], int numArgs);
+ void opCloseFillStroke(Object args[], int numArgs);
+ void opEOFillStroke(Object args[], int numArgs);
+ void opCloseEOFillStroke(Object args[], int numArgs);
+ void doPatternFill(GBool eoFill);
+ void doTilingPatternFill(GfxTilingPattern *tPat, GBool eoFill);
+ void doShadingPatternFill(GfxShadingPattern *sPat, GBool eoFill);
+ void opShFill(Object args[], int numArgs);
+ void doFunctionShFill(GfxFunctionShading *shading);
+ void doFunctionShFill1(GfxFunctionShading *shading,
+ double x0, double y0,
+ double x1, double y1,
+ GfxColor *colors, int depth);
+ void doAxialShFill(GfxAxialShading *shading);
+ void doRadialShFill(GfxRadialShading *shading);
+ void doGouraudTriangleShFill(GfxGouraudTriangleShading *shading);
+ void gouraudFillTriangle(double x0, double y0, GfxColor *color0,
+ double x1, double y1, GfxColor *color1,
+ double x2, double y2, GfxColor *color2,
+ int nComps, int depth);
+ void doPatchMeshShFill(GfxPatchMeshShading *shading);
+ void fillPatch(GfxPatch *patch, int nComps, int depth);
+ void doEndPath();
+
+ // path clipping operators
+ void opClip(Object args[], int numArgs);
+ void opEOClip(Object args[], int numArgs);
+
+ // text object operators
+ void opBeginText(Object args[], int numArgs);
+ void opEndText(Object args[], int numArgs);
+
+ // text state operators
+ void opSetCharSpacing(Object args[], int numArgs);
+ void opSetFont(Object args[], int numArgs);
+ void opSetTextLeading(Object args[], int numArgs);
+ void opSetTextRender(Object args[], int numArgs);
+ void opSetTextRise(Object args[], int numArgs);
+ void opSetWordSpacing(Object args[], int numArgs);
+ void opSetHorizScaling(Object args[], int numArgs);
+
+ // text positioning operators
+ void opTextMove(Object args[], int numArgs);
+ void opTextMoveSet(Object args[], int numArgs);
+ void opSetTextMatrix(Object args[], int numArgs);
+ void opTextNextLine(Object args[], int numArgs);
+
+ // text string operators
+ void opShowText(Object args[], int numArgs);
+ void opMoveShowText(Object args[], int numArgs);
+ void opMoveSetShowText(Object args[], int numArgs);
+ void opShowSpaceText(Object args[], int numArgs);
+ void doShowText(GString *s);
+
+ // XObject operators
+ void opXObject(Object args[], int numArgs);
+ void doImage(Object *ref, Stream *str, GBool inlineImg);
+ void doForm(Object *str);
+ void doForm1(Object *str, Dict *resDict, double *matrix, double *bbox);
+
+ // in-line image operators
+ void opBeginImage(Object args[], int numArgs);
+ Stream *buildImageStream();
+ void opImageData(Object args[], int numArgs);
+ void opEndImage(Object args[], int numArgs);
+
+ // type 3 font operators
+ void opSetCharWidth(Object args[], int numArgs);
+ void opSetCacheDevice(Object args[], int numArgs);
+
+ // compatibility operators
+ void opBeginIgnoreUndef(Object args[], int numArgs);
+ void opEndIgnoreUndef(Object args[], int numArgs);
+
+ // marked content operators
+ void opBeginMarkedContent(Object args[], int numArgs);
+ void opEndMarkedContent(Object args[], int numArgs);
+ void opMarkPoint(Object args[], int numArgs);
+
+ void pushResources(Dict *resDict);
+ void popResources();
+};
+
+#endif
git.asbjorn.biz / swftools.git / blobdiff