//
// GfxState.h
//
-// Copyright 1996 Derek B. Noonburg
+// Copyright 1996-2003 Glyph & Cog, LLC
//
//========================================================================
#ifndef GFXSTATE_H
#define GFXSTATE_H
-#ifdef __GNUC__
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
#pragma interface
#endif
#include "gtypes.h"
#include "Object.h"
+#include "Function.h"
class Array;
-class Function;
class GfxFont;
+class PDFRectangle;
//------------------------------------------------------------------------
// GfxColor
//------------------------------------------------------------------------
-#define gfxColorMaxComps 8
+#define gfxColorMaxComps funcMaxOutputs
struct GfxColor {
double c[gfxColorMaxComps];
// GfxColorSpace
//------------------------------------------------------------------------
+// NB: The nGfxColorSpaceModes constant and the gfxColorSpaceModeNames
+// array defined in GfxState.cc must match this enum.
enum GfxColorSpaceMode {
csDeviceGray,
csCalGray,
virtual void getDefaultRanges(double *decodeLow, double *decodeRange,
int maxImgPixel);
+ // Return the number of color space modes
+ static int getNumColorSpaceModes();
+
+ // Return the name of the <idx>th color space mode.
+ static char *getColorSpaceModeName(int idx);
+
private:
};
double getGammaR() { return gammaR; }
double getGammaG() { return gammaG; }
double getGammaB() { return gammaB; }
- double *getMatrix() { return m; }
+ double *getMatrix() { return mat; }
private:
double whiteX, whiteY, whiteZ; // white point
double blackX, blackY, blackZ; // black point
double gammaR, gammaG, gammaB; // gamma values
- double m[9]; // ABC -> XYZ transform matrix
+ double mat[9]; // ABC -> XYZ transform matrix
};
//------------------------------------------------------------------------
class GfxICCBasedColorSpace: public GfxColorSpace {
public:
- GfxICCBasedColorSpace(int nComps, GfxColorSpace *alt,
- Ref *iccProfileStream);
+ GfxICCBasedColorSpace(int nCompsA, GfxColorSpace *altA,
+ Ref *iccProfileStreamA);
virtual ~GfxICCBasedColorSpace();
virtual GfxColorSpace *copy();
virtual GfxColorSpaceMode getMode() { return csICCBased; }
class GfxIndexedColorSpace: public GfxColorSpace {
public:
- GfxIndexedColorSpace(GfxColorSpace *base, int indexHigh);
+ GfxIndexedColorSpace(GfxColorSpace *baseA, int indexHighA);
virtual ~GfxIndexedColorSpace();
virtual GfxColorSpace *copy();
virtual GfxColorSpaceMode getMode() { return csIndexed; }
GfxColorSpace *getBase() { return base; }
int getIndexHigh() { return indexHigh; }
Guchar *getLookup() { return lookup; }
+ GfxColor *mapColorToBase(GfxColor *color, GfxColor *baseColor);
private:
class GfxSeparationColorSpace: public GfxColorSpace {
public:
- GfxSeparationColorSpace(GString *name, GfxColorSpace *alt,
- Function *func);
+ GfxSeparationColorSpace(GString *nameA, GfxColorSpace *altA,
+ Function *funcA);
virtual ~GfxSeparationColorSpace();
virtual GfxColorSpace *copy();
virtual GfxColorSpaceMode getMode() { return csSeparation; }
virtual int getNComps() { return nComps; }
// DeviceN-specific access.
+ GString *getColorantName(int i) { return names[i]; }
GfxColorSpace *getAlt() { return alt; }
+ Function *getTintTransformFunc() { return func; }
private:
class GfxPatternColorSpace: public GfxColorSpace {
public:
- GfxPatternColorSpace(GfxColorSpace *under);
+ GfxPatternColorSpace(GfxColorSpace *underA);
virtual ~GfxPatternColorSpace();
virtual GfxColorSpace *copy();
virtual GfxColorSpaceMode getMode() { return csPattern; }
class GfxPattern {
public:
- GfxPattern(int type);
+ GfxPattern(int typeA);
virtual ~GfxPattern();
static GfxPattern *parse(Object *obj);
};
//------------------------------------------------------------------------
-// Function
+// GfxShading
//------------------------------------------------------------------------
-#define funcMaxInputs 1
-#define funcMaxOutputs 8
-
-class Function {
+class GfxShading {
public:
- Function();
-
- virtual ~Function();
-
- // Construct a function. Returns NULL if unsuccessful.
- static Function *parse(Object *funcObj);
+ GfxShading();
+ virtual ~GfxShading();
- // Initialize the entries common to all function types.
- GBool init(Dict *dict);
+ static GfxShading *parse(Object *obj);
- virtual Function *copy() = 0;
-
- // Return size of input and output tuples.
- int getInputSize() { return m; }
- int getOutputSize() { return n; }
-
- // Transform an input tuple into an output tuple.
- virtual void transform(double *in, double *out) = 0;
-
- virtual GBool isOk() = 0;
+ int getType() { return type; }
+ GfxColorSpace *getColorSpace() { return colorSpace; }
+ GfxColor *getBackground() { return &background; }
+ GBool getHasBackground() { return hasBackground; }
+ void getBBox(double *xMinA, double *yMinA, double *xMaxA, double *yMaxA)
+ { *xMinA = xMin; *yMinA = yMin; *xMaxA = xMax; *yMaxA = yMax; }
+ GBool getHasBBox() { return hasBBox; }
-protected:
+private:
- int m, n; // size of input and output tuples
- double // min and max values for function domain
- domain[funcMaxInputs][2];
- double // min and max values for function range
- range[funcMaxOutputs][2];
- GBool hasRange; // set if range is defined
+ int type;
+ GfxColorSpace *colorSpace;
+ GfxColor background;
+ GBool hasBackground;
+ double xMin, yMin, xMax, yMax;
+ GBool hasBBox;
};
//------------------------------------------------------------------------
-// SampledFunction
+// GfxAxialShading
//------------------------------------------------------------------------
-class SampledFunction: public Function {
+class GfxAxialShading: public GfxShading {
public:
- SampledFunction(Object *funcObj, Dict *dict);
- virtual ~SampledFunction();
- virtual Function *copy() { return new SampledFunction(this); }
- virtual void transform(double *in, double *out);
- virtual GBool isOk() { return ok; }
+ GfxAxialShading(double x0A, double y0A,
+ double x1A, double y1A,
+ double t0A, double t1A,
+ Function **funcsA, int nFuncsA,
+ GBool extend0A, GBool extend1A);
+ virtual ~GfxAxialShading();
-private:
+ static GfxAxialShading *parse(Dict *dict);
- SampledFunction(SampledFunction *func);
+ void getCoords(double *x0A, double *y0A, double *x1A, double *y1A)
+ { *x0A = x0; *y0A = y0; *x1A = x1; *y1A = y1; }
+ double getDomain0() { return t0; }
+ double getDomain1() { return t1; }
+ void getColor(double t, GfxColor *color);
+ GBool getExtend0() { return extend0; }
+ GBool getExtend1() { return extend1; }
- int // number of samples for each domain element
- sampleSize[funcMaxInputs];
- double // min and max values for domain encoder
- encode[funcMaxInputs][2];
- double // min and max values for range decoder
- decode[funcMaxOutputs][2];
- double *samples; // the samples
- GBool ok;
+private:
+
+ double x0, y0, x1, y1;
+ double t0, t1;
+ Function *funcs[gfxColorMaxComps];
+ int nFuncs;
+ GBool extend0, extend1;
};
//------------------------------------------------------------------------
-// ExponentialFunction
+// GfxRadialShading
//------------------------------------------------------------------------
-class ExponentialFunction: public Function {
+class GfxRadialShading: public GfxShading {
public:
- ExponentialFunction(Object *funcObj, Dict *dict);
- virtual ~ExponentialFunction();
- virtual Function *copy() { return new ExponentialFunction(this); }
- virtual void transform(double *in, double *out);
- virtual GBool isOk() { return ok; }
+ GfxRadialShading(double x0A, double y0A, double r0A,
+ double x1A, double y1A, double r1A,
+ double t0A, double t1A,
+ Function **funcsA, int nFuncsA,
+ GBool extend0A, GBool extend1A);
+ virtual ~GfxRadialShading();
-private:
+ static GfxRadialShading *parse(Dict *dict);
- ExponentialFunction(ExponentialFunction *func);
+ void getCoords(double *x0A, double *y0A, double *r0A,
+ double *x1A, double *y1A, double *r1A)
+ { *x0A = x0; *y0A = y0; *r0A = r0; *x1A = x1; *y1A = y1; *r1A = r1; }
+ double getDomain0() { return t0; }
+ double getDomain1() { return t1; }
+ void getColor(double t, GfxColor *color);
+ GBool getExtend0() { return extend0; }
+ GBool getExtend1() { return extend1; }
- double c0[funcMaxOutputs];
- double c1[funcMaxOutputs];
- double e;
- GBool ok;
+private:
+
+ double x0, y0, r0, x1, y1, r1;
+ double t0, t1;
+ Function *funcs[gfxColorMaxComps];
+ int nFuncs;
+ GBool extend0, extend1;
};
//------------------------------------------------------------------------
public:
// Constructor.
- GfxImageColorMap(int bits, Object *decode, GfxColorSpace *colorSpace);
+ GfxImageColorMap(int bitsA, Object *decode, GfxColorSpace *colorSpaceA);
// Destructor.
~GfxImageColorMap();
void getGray(Guchar *x, double *gray);
void getRGB(Guchar *x, GfxRGB *rgb);
void getCMYK(Guchar *x, GfxCMYK *cmyk);
+ void getColor(Guchar *x, GfxColor *color);
private:
double x3, double y3);
// Close the last subpath.
- void close() { subpaths[n-1]->close(); }
+ void close();
private:
public:
// Construct a default GfxState, for a device with resolution <dpi>,
- // page box (<x1>,<y1>)-(<x2>,<y2>), page rotation <rotate>, and
- // coordinate system specified by <upsideDown>.
- GfxState(double dpi, double px1a, double py1a,
- double px2a, double py2a, int rotate, GBool upsideDown);
+ // page box <pageBox>, page rotation <rotate>, and coordinate system
+ // specified by <upsideDown>.
+ GfxState(double dpi, PDFRectangle *pageBox, int rotate,
+ GBool upsideDown);
// Destructor.
~GfxState();
double getPageHeight() { return pageHeight; }
GfxColor *getFillColor() { return &fillColor; }
GfxColor *getStrokeColor() { return &strokeColor; }
+ void getFillGray(double *gray)
+ { fillColorSpace->getGray(&fillColor, gray); }
+ void getStrokeGray(double *gray)
+ { strokeColorSpace->getGray(&fillColor, gray); }
void getFillRGB(GfxRGB *rgb)
{ fillColorSpace->getRGB(&fillColor, rgb); }
void getStrokeRGB(GfxRGB *rgb)
GfxPath *getPath() { return path; }
double getCurX() { return curX; }
double getCurY() { return curY; }
+ void getClipBBox(double *xMin, double *yMin, double *xMax, double *yMax)
+ { *xMin = clipXMin; *yMin = clipYMin; *xMax = clipXMax; *yMax = clipYMax; }
+ void getUserClipBBox(double *xMin, double *yMin, double *xMax, double *yMax);
double getLineX() { return lineX; }
double getLineY() { return lineY; }
void setFlatness(int flatness1) { flatness = flatness1; }
void setLineJoin(int lineJoin1) { lineJoin = lineJoin1; }
void setLineCap(int lineCap1) { lineCap = lineCap1; }
- void setMiterLimit(double miterLimit1) { miterLimit = miterLimit1; }
- void setFont(GfxFont *font1, double fontSize1)
- { font = font1; fontSize = fontSize1; }
+ void setMiterLimit(double limit) { miterLimit = limit; }
+ void setFont(GfxFont *fontA, double fontSizeA)
+ { font = fontA; fontSize = fontSizeA; }
void setTextMat(double a, double b, double c,
double d, double e, double f)
{ textMat[0] = a; textMat[1] = b; textMat[2] = c;
{ wordSpace = space; }
void setHorizScaling(double scale)
{ horizScaling = 0.01 * scale; }
- void setLeading(double leading1)
- { leading = leading1; }
- void setRise(double rise1)
- { rise = rise1; }
- void setRender(int render1)
- { render = render1; }
+ void setLeading(double leadingA)
+ { leading = leadingA; }
+ void setRise(double riseA)
+ { rise = riseA; }
+ void setRender(int renderA)
+ { render = renderA; }
// Add to path.
void moveTo(double x, double y)
{ path->close(); curX = path->getLastX(); curY = path->getLastY(); }
void clearPath();
+ // Update clip region.
+ void clip();
+
// Text position.
+ void textSetPos(double tx, double ty) { lineX = tx; lineY = ty; }
void textMoveTo(double tx, double ty)
{ lineX = tx; lineY = ty; textTransform(tx, ty, &curX, &curY); }
- void textShift(double tx);
void textShift(double tx, double ty);
+ void shift(double dx, double dy);
// Push/pop GfxState on/off stack.
GfxState *save();
double curX, curY; // current point (user coords)
double lineX, lineY; // start of current text line (text coords)
+ double clipXMin, clipYMin, // bounding box for clip region
+ clipXMax, clipYMax;
+
GfxState *saved; // next GfxState on stack
GfxState(GfxState *state);
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff