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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 gTrue; }
+
+ // Does this device use drawChar() or drawString()?
+ virtual GBool useDrawChar() { 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);
+
+ //----- 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);
+
+ //----- 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);
+ virtual void drawImage(GfxState *state, Object *ref, Stream *str,
+ int width, int height, GfxImageColorMap *colorMap,
+ int *maskColors, GBool inlineImg);
+ virtual void drawMaskedImage(GfxState *state, Object *ref, Stream *str,
+ int width, int height,
+ GfxImageColorMap *colorMap,
+ Stream *maskStr, int maskWidth, int maskHeight,
+ GBool maskInvert);
+ virtual void drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str,
+ int width, int height,
+ GfxImageColorMap *colorMap,
+ Stream *maskStr,
+ int maskWidth, int maskHeight,
+ GfxImageColorMap *maskColorMap);
+
+ //----- 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 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();
+
+ // 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, double *textMatA);
+
+ SplashFont *getCurrentFont() { return font; }
+
+#if 1 //~tmp: turn off anti-aliasing temporarily
+ virtual GBool getVectorAntialias();
+ virtual void setVectorAntialias(GBool vaa);
+#endif
+
+private:
+
+ void setupScreenParams(double hDPI, double vDPI);
+#if SPLASH_CMYK
+ SplashPattern *getColor(GfxGray gray, GfxRGB *rgb, GfxCMYK *cmyk);
+#else
+ SplashPattern *getColor(GfxGray gray, GfxRGB *rgb);
+#endif
+ SplashPath *convertPath(GfxState *state, GfxPath *path);
+ void doUpdateFont(GfxState *state);
+ void drawType3Glyph(T3FontCache *t3Font,
+ T3FontCacheTag *tag, Guchar *data);
+ static GBool imageMaskSrc(void *data, SplashColorPtr 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);
+
+ SplashColorMode colorMode;
+ int bitmapRowPad;
+ GBool bitmapTopDown;
+ GBool allowAntialias;
+ GBool vectorAntialias;
+ GBool reverseVideo; // reverse video mode
+ SplashColor paperColor; // paper color
+ SplashScreenParams screenParams;
+
+ 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;
+};
+
+#endif