xpdf-no-select-disableHEADmaster

1 files changed, 320 insertions, 0 deletions

diff --git a/xpdf/SplashOutputDev.h b/xpdf/SplashOutputDev.h
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+//========================================================================
+//
+// 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 GBool 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