pdftops/SplashState.cxx

   1 //========================================================================
   2 //
   3 // SplashState.cc
   4 //
   5 //========================================================================
   6
   7 #include <config.h>
   8
   9 #ifdef USE_GCC_PRAGMAS
  10 #pragma implementation
  11 #endif
  12
  13 #include <string.h>
  14 #include "gmem.h"
  15 #include "SplashPattern.h"
  16 #include "SplashScreen.h"
  17 #include "SplashClip.h"
  18 #include "SplashState.h"
  19
  20 //------------------------------------------------------------------------
  21 // SplashState
  22 //------------------------------------------------------------------------
  23
  24 // number of components in each color mode
  25 int splashColorModeNComps[] = {
  26   1, 1, 2, 3, 3, 4, 4
  27 };
  28
  29 SplashState::SplashState(int width, int height) {
  30   SplashColor color;
  31
  32   memset(&color, 0, sizeof(SplashColor));
  33   strokePattern = new SplashSolidColor(color);
  34   fillPattern = new SplashSolidColor(color);
  35   screen = new SplashScreen(10);
  36   blendFunc = NULL;
  37   strokeAlpha = 1;
  38   fillAlpha = 1;
  39   lineWidth = 0;
  40   lineCap = splashLineCapButt;
  41   lineJoin = splashLineJoinMiter;
  42   miterLimit = 10;
  43   flatness = 1;
  44   lineDash = NULL;
  45   lineDashLength = 0;
  46   lineDashPhase = 0;
  47   clip = new SplashClip(0, 0, width - 1, height - 1);
  48   next = NULL;
  49 }
  50
  51 SplashState::SplashState(SplashState *state) {
  52   strokePattern = state->strokePattern->copy();
  53   fillPattern = state->fillPattern->copy();
  54   screen = state->screen->copy();
  55   blendFunc = state->blendFunc;
  56   strokeAlpha = state->strokeAlpha;
  57   fillAlpha = state->fillAlpha;
  58   lineWidth = state->lineWidth;
  59   lineCap = state->lineCap;
  60   lineJoin = state->lineJoin;
  61   miterLimit = state->miterLimit;
  62   flatness = state->flatness;
  63   if (state->lineDash) {
  64     lineDashLength = state->lineDashLength;
  65     lineDash = (SplashCoord *)gmallocn(lineDashLength, sizeof(SplashCoord));
  66     memcpy(lineDash, state->lineDash, lineDashLength * sizeof(SplashCoord));
  67   } else {
  68     lineDash = NULL;
  69     lineDashLength = 0;
  70   }
  71   lineDashPhase = state->lineDashPhase;
  72   clip = state->clip->copy();
  73   next = NULL;
  74 }
  75
  76 SplashState::~SplashState() {
  77   delete strokePattern;
  78   delete fillPattern;
  79   delete screen;
  80   gfree(lineDash);
  81   delete clip;
  82 }
  83
  84 void SplashState::setStrokePattern(SplashPattern *strokePatternA) {
  85   delete strokePattern;
  86   strokePattern = strokePatternA;
  87 }
  88
  89 void SplashState::setFillPattern(SplashPattern *fillPatternA) {
  90   delete fillPattern;
  91   fillPattern = fillPatternA;
  92 }
  93
  94 void SplashState::setScreen(SplashScreen *screenA) {
  95   delete screen;
  96   screen = screenA;
  97 }
  98
  99 void SplashState::setLineDash(SplashCoord *lineDashA, int lineDashLengthA,
 100                               SplashCoord lineDashPhaseA) {
 101   gfree(lineDash);
 102   lineDashLength = lineDashLengthA;
 103   if (lineDashLength > 0) {
 104     lineDash = (SplashCoord *)gmallocn(lineDashLength, sizeof(SplashCoord));
 105     memcpy(lineDash, lineDashA, lineDashLength * sizeof(SplashCoord));
 106   } else {
 107     lineDash = NULL;
 108   }
 109   lineDashPhase = lineDashPhaseA;
 110 }