pdftops/OutputDev.cxx

   1 //========================================================================
   2 //
   3 // OutputDev.cc
   4 //
   5 // Copyright 1996-2003 Glyph & Cog, LLC
   6 //
   7 //========================================================================
   8
   9 #include <config.h>
  10
  11 #ifdef USE_GCC_PRAGMAS
  12 #pragma implementation
  13 #endif
  14
  15 #include <stddef.h>
  16 #include "Object.h"
  17 #include "Stream.h"
  18 #include "GfxState.h"
  19 #include "OutputDev.h"
  20
  21 //------------------------------------------------------------------------
  22 // OutputDev
  23 //------------------------------------------------------------------------
  24
  25 void OutputDev::setDefaultCTM(double *ctm) {
  26   int i;
  27   double det;
  28
  29   for (i = 0; i < 6; ++i) {
  30     defCTM[i] = ctm[i];
  31   }
  32   det = 1 / (defCTM[0] * defCTM[3] - defCTM[1] * defCTM[2]);
  33   defICTM[0] = defCTM[3] * det;
  34   defICTM[1] = -defCTM[1] * det;
  35   defICTM[2] = -defCTM[2] * det;
  36   defICTM[3] = defCTM[0] * det;
  37   defICTM[4] = (defCTM[2] * defCTM[5] - defCTM[3] * defCTM[4]) * det;
  38   defICTM[5] = (defCTM[1] * defCTM[4] - defCTM[0] * defCTM[5]) * det;
  39 }
  40
  41 void OutputDev::cvtDevToUser(double dx, double dy, double *ux, double *uy) {
  42   *ux = defICTM[0] * dx + defICTM[2] * dy + defICTM[4];
  43   *uy = defICTM[1] * dx + defICTM[3] * dy + defICTM[5];
  44 }
  45
  46 void OutputDev::cvtUserToDev(double ux, double uy, int *dx, int *dy) {
  47   *dx = (int)(defCTM[0] * ux + defCTM[2] * uy + defCTM[4] + 0.5);
  48   *dy = (int)(defCTM[1] * ux + defCTM[3] * uy + defCTM[5] + 0.5);
  49 }
  50
  51 void OutputDev::updateAll(GfxState *state) {
  52   updateLineDash(state);
  53   updateFlatness(state);
  54   updateLineJoin(state);
  55   updateLineCap(state);
  56   updateMiterLimit(state);
  57   updateLineWidth(state);
  58   updateFillColorSpace(state);
  59   updateFillColor(state);
  60   updateStrokeColorSpace(state);
  61   updateStrokeColor(state);
  62   updateBlendMode(state);
  63   updateFillOpacity(state);
  64   updateStrokeOpacity(state);
  65   updateFillOverprint(state);
  66   updateStrokeOverprint(state);
  67   updateFont(state);
  68 }
  69
  70 GBool OutputDev::beginType3Char(GfxState *state, double x, double y,
  71                                 double dx, double dy,
  72                                 CharCode code, Unicode *u, int uLen) {
  73   return gFalse;
  74 }
  75
  76 void OutputDev::drawImageMask(GfxState *state, Object *ref, Stream *str,
  77                               int width, int height, GBool invert,
  78                               GBool inlineImg) {
  79   int i, j;
  80
  81   if (inlineImg) {
  82     str->reset();
  83     j = height * ((width + 7) / 8);
  84     for (i = 0; i < j; ++i)
  85       str->getChar();
  86     str->close();
  87   }
  88 }
  89
  90 void OutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
  91                           int width, int height, GfxImageColorMap *colorMap,
  92                           int *maskColors, GBool inlineImg) {
  93   int i, j;
  94
  95   if (inlineImg) {
  96     str->reset();
  97     j = height * ((width * colorMap->getNumPixelComps() *
  98                    colorMap->getBits() + 7) / 8);
  99     for (i = 0; i < j; ++i)
 100       str->getChar();
 101     str->close();
 102   }
 103 }
 104
 105 void OutputDev::drawMaskedImage(GfxState *state, Object *ref, Stream *str,
 106                                 int width, int height,
 107                                 GfxImageColorMap *colorMap,
 108                                 Stream *maskStr,
 109                                 int maskWidth, int maskHeight,
 110                                 GBool maskInvert) {
 111   drawImage(state, ref, str, width, height, colorMap, NULL, gFalse);
 112 }
 113
 114 void OutputDev::drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str,
 115                                     int width, int height,
 116                                     GfxImageColorMap *colorMap,
 117                                     Stream *maskStr,
 118                                     int maskWidth, int maskHeight,
 119                                     GfxImageColorMap *maskColorMap) {
 120   drawImage(state, ref, str, width, height, colorMap, NULL, gFalse);
 121 }
 122
 123 #if OPI_SUPPORT
 124 void OutputDev::opiBegin(GfxState *state, Dict *opiDict) {
 125 }
 126
 127 void OutputDev::opiEnd(GfxState *state, Dict *opiDict) {
 128 }
 129 #endif