321 lines
11 KiB
C++
321 lines
11 KiB
C++
//========================================================================
|
|
//
|
|
// SplashOutputDev.h
|
|
//
|
|
// Copyright 2003 Glyph & Cog, LLC
|
|
//
|
|
//========================================================================
|
|
|
|
#ifndef SPLASHOUTPUTDEV_H
|
|
#define SPLASHOUTPUTDEV_H
|
|
|
|
#include <aconf.h>
|
|
|
|
#ifdef USE_GCC_PRAGMAS
|
|
#pragma interface
|
|
#endif
|
|
|
|
#include "gtypes.h"
|
|
#include "SplashTypes.h"
|
|
#include "config.h"
|
|
#include "OutputDev.h"
|
|
#include "GfxState.h"
|
|
|
|
class Gfx8BitFont;
|
|
class SplashBitmap;
|
|
class Splash;
|
|
class SplashPath;
|
|
class SplashPattern;
|
|
class SplashFontEngine;
|
|
class SplashFont;
|
|
class T3FontCache;
|
|
struct T3FontCacheTag;
|
|
struct T3GlyphStack;
|
|
struct SplashTransparencyGroup;
|
|
|
|
//------------------------------------------------------------------------
|
|
|
|
// number of Type 3 fonts to cache
|
|
#define splashOutT3FontCacheSize 8
|
|
|
|
//------------------------------------------------------------------------
|
|
// SplashOutputDev
|
|
//------------------------------------------------------------------------
|
|
|
|
class SplashOutputDev: public OutputDev {
|
|
public:
|
|
|
|
// Constructor.
|
|
SplashOutputDev(SplashColorMode colorModeA, int bitmapRowPadA,
|
|
GBool reverseVideoA, SplashColorPtr paperColorA,
|
|
GBool bitmapTopDownA = gTrue,
|
|
GBool allowAntialiasA = gTrue);
|
|
|
|
|
|
// Destructor.
|
|
virtual ~SplashOutputDev();
|
|
|
|
//----- 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 bitmapTopDown ^ bitmapUpsideDown; }
|
|
|
|
// Does this device use drawChar() or drawString()?
|
|
virtual GBool useDrawChar() { return gTrue; }
|
|
|
|
// 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 beginType3Char/endType3Char? Otherwise,
|
|
// text in Type 3 fonts will be drawn with drawChar/drawString.
|
|
virtual GBool interpretType3Chars() { return gTrue; }
|
|
|
|
|
|
|
|
//----- initialization and control
|
|
|
|
// 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 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 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 updateRenderingIntent(GfxState *state);
|
|
virtual void updateTransfer(GfxState *state);
|
|
|
|
//----- update text state
|
|
virtual void updateFont(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 drawChar(GfxState *state, double x, double y,
|
|
double dx, double dy,
|
|
double originX, double originY,
|
|
CharCode code, int nBytes, Unicode *u, int uLen);
|
|
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, GBool interpolate);
|
|
virtual void setSoftMaskFromImageMask(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);
|
|
virtual void drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str,
|
|
int width, int height,
|
|
GfxImageColorMap *colorMap,
|
|
Object *maskRef, Stream *maskStr,
|
|
int maskWidth, int maskHeight,
|
|
GfxImageColorMap *maskColorMap,
|
|
double *matte, GBool interpolate);
|
|
|
|
//----- 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);
|
|
|
|
//----- 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);
|
|
|
|
//----- special access
|
|
|
|
// Called to indicate that a new PDF document has been loaded.
|
|
void startDoc(XRef *xrefA);
|
|
|
|
void setStartPageCallback(void (*cbk)(void *data), void *data)
|
|
{ startPageCbk = cbk; startPageCbkData = data; }
|
|
|
|
void setPaperColor(SplashColorPtr paperColorA);
|
|
|
|
GBool isReverseVideo() { return reverseVideo; }
|
|
void setReverseVideo(GBool reverseVideoA) { reverseVideo = reverseVideoA; }
|
|
|
|
// Get the bitmap and its size.
|
|
SplashBitmap *getBitmap() { return bitmap; }
|
|
int getBitmapWidth();
|
|
int getBitmapHeight();
|
|
|
|
// Returns the last rasterized bitmap, transferring ownership to the
|
|
// caller.
|
|
SplashBitmap *takeBitmap();
|
|
|
|
// Set this flag to true to generate an upside-down bitmap (useful
|
|
// for Windows BMP files).
|
|
void setBitmapUpsideDown(GBool f) { bitmapUpsideDown = f; }
|
|
|
|
// Setting this to true disables the final composite (with the
|
|
// opaque paper color), resulting in transparent output.
|
|
void setNoComposite(GBool f) { noComposite = f; }
|
|
|
|
// Get the Splash object.
|
|
Splash *getSplash() { return splash; }
|
|
|
|
// Get the modified region.
|
|
void getModRegion(int *xMin, int *yMin, int *xMax, int *yMax);
|
|
|
|
// Clear the modified region.
|
|
void clearModRegion();
|
|
|
|
// Set the Splash fill color.
|
|
void setFillColor(int r, int g, int b);
|
|
|
|
// Get a font object for a Base-14 font, using the Latin-1 encoding.
|
|
SplashFont *getFont(GString *name, SplashCoord *textMatA);
|
|
|
|
SplashFont *getCurrentFont() { return font; }
|
|
|
|
// If <skipTextA> is true, don't draw horizontal text.
|
|
// If <skipRotatedTextA> is true, don't draw rotated (non-horizontal) text.
|
|
void setSkipText(GBool skipHorizTextA, GBool skipRotatedTextA)
|
|
{ skipHorizText = skipHorizTextA; skipRotatedText = skipRotatedTextA; }
|
|
|
|
int getNestCount() { return nestCount; }
|
|
|
|
|
|
// Get the screen parameters.
|
|
SplashScreenParams *getScreenParams() { return &screenParams; }
|
|
|
|
private:
|
|
|
|
void setupScreenParams(double hDPI, double vDPI);
|
|
SplashPattern *getColor(GfxGray gray);
|
|
SplashPattern *getColor(GfxRGB *rgb);
|
|
#if SPLASH_CMYK
|
|
SplashPattern *getColor(GfxCMYK *cmyk);
|
|
#endif
|
|
void getColor(GfxGray gray, SplashColorPtr color);
|
|
void getColor(GfxRGB *rgb, SplashColorPtr color);
|
|
#if SPLASH_CMYK
|
|
void getColor(GfxCMYK *cmyk, SplashColorPtr color);
|
|
#endif
|
|
void setOverprintMask(GfxState *state, GfxColorSpace *colorSpace,
|
|
GBool overprintFlag, int overprintMode,
|
|
GfxColor *singleColor);
|
|
SplashPath *convertPath(GfxState *state, GfxPath *path,
|
|
GBool dropEmptySubpaths);
|
|
void doUpdateFont(GfxState *state);
|
|
void drawType3Glyph(GfxState *state, T3FontCache *t3Font,
|
|
T3FontCacheTag *tag, Guchar *data);
|
|
static GBool imageMaskSrc(void *data, Guchar *line);
|
|
static GBool imageSrc(void *data, SplashColorPtr colorLine,
|
|
Guchar *alphaLine);
|
|
static GBool alphaImageSrc(void *data, SplashColorPtr line,
|
|
Guchar *alphaLine);
|
|
static GBool maskedImageSrc(void *data, SplashColorPtr line,
|
|
Guchar *alphaLine);
|
|
static GBool softMaskMatteImageSrc(void *data,
|
|
SplashColorPtr colorLine,
|
|
Guchar *alphaLine);
|
|
GString *makeImageTag(Object *ref, GfxRenderingIntent ri,
|
|
GfxColorSpace *colorSpace);
|
|
void reduceImageResolution(Stream *str, double *mat,
|
|
int *width, int *height);
|
|
void clearMaskRegion(GfxState *state,
|
|
Splash *maskSplash,
|
|
double xMin, double yMin,
|
|
double xMax, double yMax);
|
|
void copyState(Splash *oldSplash, GBool copyColors);
|
|
#if 1 //~tmp: turn off anti-aliasing temporarily
|
|
void setInShading(GBool sh);
|
|
#endif
|
|
|
|
SplashColorMode colorMode;
|
|
int bitmapRowPad;
|
|
GBool bitmapTopDown;
|
|
GBool bitmapUpsideDown;
|
|
GBool noComposite;
|
|
GBool allowAntialias;
|
|
GBool vectorAntialias;
|
|
GBool reverseVideo; // reverse video mode
|
|
GBool reverseVideoInvertImages;
|
|
SplashColor paperColor; // paper color
|
|
SplashScreenParams screenParams;
|
|
GBool skipHorizText;
|
|
GBool skipRotatedText;
|
|
|
|
XRef *xref; // xref table for current document
|
|
|
|
SplashBitmap *bitmap;
|
|
Splash *splash;
|
|
SplashFontEngine *fontEngine;
|
|
|
|
T3FontCache * // Type 3 font cache
|
|
t3FontCache[splashOutT3FontCacheSize];
|
|
int nT3Fonts; // number of valid entries in t3FontCache
|
|
T3GlyphStack *t3GlyphStack; // Type 3 glyph context stack
|
|
|
|
SplashFont *font; // current font
|
|
GBool needFontUpdate; // set when the font needs to be updated
|
|
SplashPath *textClipPath; // clipping path built with text object
|
|
|
|
SplashTransparencyGroup * // transparency group stack
|
|
transpGroupStack;
|
|
|
|
int nestCount;
|
|
|
|
void (*startPageCbk)(void *data);
|
|
void *startPageCbkData;
|
|
};
|
|
|
|
#endif
|