source/libs/poppler/poppler-src/splash/SplashPattern.h

   1 //========================================================================
   2 //
   3 // SplashPattern.h
   4 //
   5 //========================================================================
   6
   7 //========================================================================
   8 //
   9 // Modified under the Poppler project - http://poppler.freedesktop.org
  10 //
  11 // All changes made under the Poppler project to this file are licensed
  12 // under GPL version 2 or later
  13 //
  14 // Copyright (C) 2010, 2011, 2014 Thomas Freitag <Thomas.Freitag@alfa.de>
  15 //
  16 // To see a description of the changes please see the Changelog file that
  17 // came with your tarball or type make ChangeLog if you are building from git
  18 //
  19 //========================================================================
  20
  21 #ifndef SPLASHPATTERN_H
  22 #define SPLASHPATTERN_H
  23
  24 #ifdef USE_GCC_PRAGMAS
  25 #pragma interface
  26 #endif
  27
  28 #include "SplashTypes.h"
  29
  30 class SplashScreen;
  31
  32 //------------------------------------------------------------------------
  33 // SplashPattern
  34 //------------------------------------------------------------------------
  35
  36 class SplashPattern {
  37 public:
  38
  39   SplashPattern();
  40
  41   virtual SplashPattern *copy() = 0;
  42
  43   virtual ~SplashPattern();
  44
  45   // Return the color value for a specific pixel.
  46   virtual GBool getColor(int x, int y, SplashColorPtr c) = 0;
  47
  48   // Test if x,y-position is inside pattern.
  49   virtual GBool testPosition(int x, int y) = 0;
  50
  51   // Returns true if this pattern object will return the same color
  52   // value for all pixels.
  53   virtual GBool isStatic() = 0;
  54
  55   // Returns true if this pattern colorspace is CMYK.
  56   virtual GBool isCMYK() = 0;
  57 private:
  58 };
  59
  60 //------------------------------------------------------------------------
  61 // SplashSolidColor
  62 //------------------------------------------------------------------------
  63
  64 class SplashSolidColor: public SplashPattern {
  65 public:
  66
  67   SplashSolidColor(SplashColorPtr colorA);
  68
  69   virtual SplashPattern *copy() { return new SplashSolidColor(color); }
  70
  71   virtual ~SplashSolidColor();
  72
  73   virtual GBool getColor(int x, int y, SplashColorPtr c);
  74
  75   virtual GBool testPosition(int x, int y) { return gFalse; }
  76
  77   virtual GBool isStatic() { return gTrue; }
  78
  79   virtual GBool isCMYK() { return gFalse; }
  80
  81 private:
  82
  83   SplashColor color;
  84 };
  85
  86 //------------------------------------------------------------------------
  87 // SplashGouraudColor (needed for gouraudTriangleShadedFill)
  88 //------------------------------------------------------------------------
  89
  90 class SplashGouraudColor: public SplashPattern {
  91 public:
  92
  93   virtual GBool isParameterized() = 0;
  94
  95   virtual int getNTriangles() = 0;
  96
  97   virtual  void getTriangle(int i, double *x0, double *y0, double *color0,
  98                             double *x1, double *y1, double *color1,
  99                             double *x2, double *y2, double *color2) = 0;
 100
 101   virtual void getParameterizedColor(double t, SplashColorMode mode, SplashColorPtr c) = 0;
 102 };
 103
 104 #endif