//======================================================================== // // SplashScreen.h // //======================================================================== #ifndef SPLASHSCREEN_H #define SPLASHSCREEN_H #ifdef USE_GCC_PRAGMAS #pragma interface #endif #include "SplashTypes.h" //------------------------------------------------------------------------ // SplashScreen //------------------------------------------------------------------------ class SplashScreen { public: SplashScreen(SplashScreenParams *params); SplashScreen(SplashScreen *screen); ~SplashScreen(); SplashScreen *copy() { return new SplashScreen(this); } // Return the computed pixel value (0=black, 1=white) for the gray // level at (, ). int test(int x, int y, Guchar value); // Returns true if value is above the white threshold or below the // black threshold, i.e., if the corresponding halftone will be // solid white or black. GBool isStatic(Guchar value); private: void buildDispersedMatrix(int i, int j, int val, int delta, int offset); void buildClusteredMatrix(); int distance(int x0, int y0, int x1, int y1); void buildSCDMatrix(int r); Guchar *mat; // threshold matrix int size; // size of the threshold matrix Guchar minVal; // any pixel value below minVal generates // solid black Guchar maxVal; // any pixel value above maxVal generates // solid white }; #endif