pdftops/SplashPattern.h

   1 //========================================================================
   2 //
   3 // SplashPattern.h
   4 //
   5 //========================================================================
   6
   7 #ifndef SPLASHPATTERN_H
   8 #define SPLASHPATTERN_H
   9
  10 #include <config.h>
  11
  12 #ifdef USE_GCC_PRAGMAS
  13 #pragma interface
  14 #endif
  15
  16 #include "SplashTypes.h"
  17
  18 class SplashScreen;
  19
  20 //------------------------------------------------------------------------
  21 // SplashPattern
  22 //------------------------------------------------------------------------
  23
  24 class SplashPattern {
  25 public:
  26
  27   SplashPattern();
  28
  29   virtual SplashPattern *copy() = 0;
  30
  31   virtual ~SplashPattern();
  32
  33   // Return the color value for a specific pixel.
  34   virtual void getColor(int x, int y, SplashColorPtr c) = 0;
  35
  36   // Returns true if this pattern object will return the same color
  37   // value for all pixels.
  38   virtual GBool isStatic() = 0;
  39
  40 private:
  41 };
  42
  43 //------------------------------------------------------------------------
  44 // SplashSolidColor
  45 //------------------------------------------------------------------------
  46
  47 class SplashSolidColor: public SplashPattern {
  48 public:
  49
  50   SplashSolidColor(SplashColorPtr colorA);
  51
  52   virtual SplashPattern *copy() { return new SplashSolidColor(color); }
  53
  54   virtual ~SplashSolidColor();
  55
  56   virtual void getColor(int x, int y, SplashColorPtr c);
  57
  58   virtual GBool isStatic() { return gTrue; }
  59
  60 private:
  61
  62   SplashColor color;
  63 };
  64
  65 //------------------------------------------------------------------------
  66 // SplashHalftone
  67 //------------------------------------------------------------------------
  68
  69 class SplashHalftone: public SplashPattern {
  70 public:
  71
  72   SplashHalftone(SplashColorPtr color0A, SplashColorPtr color1A,
  73                  SplashScreen *screenA, SplashCoord valueA);
  74
  75   virtual SplashPattern *copy();
  76
  77   virtual ~SplashHalftone();
  78
  79   virtual void getColor(int x, int y, SplashColorPtr c);
  80
  81   virtual GBool isStatic();
  82
  83 private:
  84
  85   SplashColor color0, color1;
  86   SplashScreen *screen;
  87   SplashCoord value;
  88 };
  89
  90 #endif