1 files changed, 176 insertions, 0 deletions
diff --git a/pdf/splash/Splash.h b/pdf/splash/Splash.h
new file mode 100644
index 0000000..efcbdab
--- /dev/null
+++ b/pdf/splash/Splash.h
@@ -0,0 +1,176 @@
+//========================================================================
+//
+// Splash.h
+//
+//========================================================================
+
+#ifndef SPLASH_H
+#define SPLASH_H
+
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
+#pragma interface
+#endif
+
+#include "SplashTypes.h"
+
+class SplashBitmap;
+class SplashGlyphBitmap;
+class SplashState;
+class SplashPattern;
+class SplashScreen;
+class SplashPath;
+class SplashXPath;
+class SplashClip;
+class SplashFont;
+
+//------------------------------------------------------------------------
+
+// Retrieves the next pixel in an image mask.  Normally, fills in
+// *<pixel> and returns true.  If the image stream is exhausted,
+// returns false.
+typedef GBool (*SplashImageMaskSource)(void *data, SplashMono1 *pixel);
+
+// Retrieves the next pixel in an image.  Normally, fills in *<pixel>
+// (pixel color) and *<alpha> (1 for opaque, 0 for transparent), and
+// returns true.  If the image stream is exhausted, returns false.
+typedef GBool (*SplashImageSource)(void *data, SplashColor *pixel,
+				   Guchar *alpha);
+
+//------------------------------------------------------------------------
+// Splash
+//------------------------------------------------------------------------
+
+class Splash {
+public:
+
+  // Create a new rasterizer object.
+  Splash(SplashBitmap *bitmapA);
+
+  ~Splash();
+
+  //----- state read
+
+  SplashPattern *getStrokePattern();
+  SplashPattern *getFillPattern();
+  SplashScreen *getScreen();
+  SplashCoord getLineWidth();
+  int getLineCap();
+  int getLineJoin();
+  SplashCoord getMiterLimit();
+  SplashCoord getFlatness();
+  SplashCoord *getLineDash();
+  int getLineDashLength();
+  SplashCoord getLineDashPhase();
+  SplashClip *getClip();
+
+  //----- state write
+
+  void setStrokePattern(SplashPattern *strokeColor);
+  void setFillPattern(SplashPattern *fillColor);
+  void setScreen(SplashScreen *screen);
+  void setLineWidth(SplashCoord lineWidth);
+  void setLineCap(int lineCap);
+  void setLineJoin(int lineJoin);
+  void setMiterLimit(SplashCoord miterLimit);
+  void setFlatness(SplashCoord flatness);
+  // the <lineDash> array will be copied
+  void setLineDash(SplashCoord *lineDash, int lineDashLength,
+		   SplashCoord lineDashPhase);
+  void clipResetToRect(SplashCoord x0, SplashCoord y0,
+		       SplashCoord x1, SplashCoord y1);
+  SplashError clipToRect(SplashCoord x0, SplashCoord y0,
+			 SplashCoord x1, SplashCoord y1);
+  SplashError clipToPath(SplashPath *path, GBool eo);
+
+  //----- state save/restore
+
+  void saveState();
+  SplashError restoreState();
+
+  //----- drawing operations
+
+  // Fill the bitmap with <color>.  This is not subject to clipping.
+  void clear(SplashColor color);
+
+  // Stroke a path using the current stroke pattern.
+  SplashError stroke(SplashPath *path);
+
+  // Fill a path using the current fill pattern.
+  SplashError fill(SplashPath *path, GBool eo);
+
+  // Fill a path, XORing with the current fill pattern.
+  SplashError xorFill(SplashPath *path, GBool eo);
+
+  // Draw a character, using the current fill pattern.
+  SplashError fillChar(SplashCoord x, SplashCoord y, int c, SplashFont *font);
+
+  // Draw a glyph, using the current fill pattern.  This function does
+  // not free any data, i.e., it ignores glyph->freeData.
+  SplashError fillGlyph(SplashCoord x, SplashCoord y,
+			SplashGlyphBitmap *glyph);
+
+  // Draws an image mask using the fill color.  This will read <w>*<h>
+  // pixels from <src>, in raster order, starting with the top line.
+  // "1" pixels will be drawn with the current fill color; "0" pixels
+  // are transparent.  The matrix:
+  //    [ mat[0] mat[1] 0 ]
+  //    [ mat[2] mat[3] 0 ]
+  //    [ mat[4] mat[5] 1 ]
+  // maps a unit square to the desired destination for the image, in
+  // PostScript style:
+  //    [x' y' 1] = [x y 1] * mat
+  // Note that the Splash y axis points downward, and the image source
+  // is assumed to produce pixels in raster order, starting from the
+  // top line.
+  SplashError fillImageMask(SplashImageMaskSource src, void *srcData,
+			    int w, int h, SplashCoord *mat);
+
+  // Draw an image.  This will read <w>*<h> pixels from <src>, in
+  // raster order, starting with the top line.  These pixels are
+  // assumed to be in the source mode, <srcMode>.  The following
+  // combinations of source and target modes are supported:
+  //    source       target
+  //    ------       ------
+  //    Mono1        Mono1
+  //    Mono8        Mono1   -- with dithering
+  //    Mono8        Mono8
+  //    RGB8         RGB8
+  //    BGR8packed   BGR8Packed
+  // The matrix behaves as for fillImageMask.
+  SplashError drawImage(SplashImageSource src, void *srcData,
+			SplashColorMode srcMode,
+			int w, int h, SplashCoord *mat);
+
+  //~ drawMaskedImage
+
+  //----- misc
+
+  // Return the associated bitmap.
+  SplashBitmap *getBitmap() { return bitmap; }
+
+  // Toggle debug mode on or off.
+  void setDebugMode(GBool debugModeA) { debugMode = debugModeA; }
+
+private:
+
+  void strokeNarrow(SplashXPath *xPath);
+  void strokeWide(SplashXPath *xPath);
+  SplashXPath *makeDashedPath(SplashXPath *xPath);
+  SplashError fillWithPattern(SplashPath *path, GBool eo,
+			      SplashPattern *pattern);
+  void drawPixel(int x, int y, SplashColor *color, GBool noClip);
+  void drawPixel(int x, int y, SplashPattern *pattern, GBool noClip);
+  void drawSpan(int x0, int x1, int y, SplashPattern *pattern, GBool noClip);
+  void xorSpan(int x0, int x1, int y, SplashPattern *pattern, GBool noClip);
+  void putPixel(int x, int y, SplashColor *pixel);
+  void getPixel(int x, int y, SplashColor *pixel);
+  void dumpPath(SplashPath *path);
+
+  SplashBitmap *bitmap;
+  SplashState *state;
+  GBool debugMode;
+};
+
+#endif