pdftops/OutputDev.cxx

   1 //========================================================================
   2 //
   3 // OutputDev.cc
   4 //
   5 // Copyright 1996 Derek B. Noonburg
   6 //
   7 //========================================================================
   8
   9 #ifdef __GNUC__
  10 #pragma implementation
  11 #endif
  12
  13 #include <stddef.h>
  14 #include "Object.h"
  15 #include "Stream.h"
  16 #include "GfxState.h"
  17 #include "OutputDev.h"
  18
  19 //------------------------------------------------------------------------
  20 // OutputDev
  21 //------------------------------------------------------------------------
  22
  23 void OutputDev::setDefaultCTM(double *ctm1) {
  24   int i;
  25   double det;
  26
  27   for (i = 0; i < 6; ++i)
  28     ctm[i] = ctm1[i];
  29   det = 1 / (ctm[0] * ctm[3] - ctm[1] * ctm[2]);
  30   ictm[0] = ctm[3] * det;
  31   ictm[1] = -ctm[1] * det;
  32   ictm[2] = -ctm[2] * det;
  33   ictm[3] = ctm[0] * det;
  34   ictm[4] = (ctm[2] * ctm[5] - ctm[3] * ctm[4]) * det;
  35   ictm[5] = (ctm[1] * ctm[4] - ctm[0] * ctm[5]) * det;
  36 }
  37
  38 void OutputDev::cvtDevToUser(int dx, int dy, double *ux, double *uy) {
  39   *ux = ictm[0] * dx + ictm[2] * dy + ictm[4];
  40   *uy = ictm[1] * dx + ictm[3] * dy + ictm[5];
  41 }
  42
  43 void OutputDev::cvtUserToDev(double ux, double uy, int *dx, int *dy) {
  44   *dx = (int)(ctm[0] * ux + ctm[2] * uy + ctm[4] + 0.5);
  45   *dy = (int)(ctm[1] * ux + ctm[3] * uy + ctm[5] + 0.5);
  46 }
  47
  48 void OutputDev::updateAll(GfxState *state) {
  49   updateLineDash(state);
  50   updateFlatness(state);
  51   updateLineJoin(state);
  52   updateLineCap(state);
  53   updateMiterLimit(state);
  54   updateLineWidth(state);
  55   updateFillColor(state);
  56   updateStrokeColor(state);
  57   updateFont(state);
  58 }
  59
  60 void OutputDev::drawImageMask(GfxState *state, Object *ref, Stream *str,
  61                               int width, int height, GBool invert,
  62                               GBool inlineImg) {
  63   int i, j;
  64
  65   (void)state;
  66   (void)invert;
  67
  68   if (inlineImg) {
  69     str->reset();
  70     j = height * ((width + 7) / 8);
  71     for (i = 0; i < j; ++i)
  72       str->getChar();
  73   }
  74 }
  75
  76 void OutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
  77                           int width, int height, GfxImageColorMap *colorMap,
  78                           GBool inlineImg) {
  79   int i, j;
  80
  81   (void)state;
  82
  83   if (inlineImg) {
  84     str->reset();
  85     j = height * ((width * colorMap->getNumPixelComps() *
  86                    colorMap->getBits() + 7) / 8);
  87     for (i = 0; i < j; ++i)
  88       str->getChar();
  89   }
  90 }
  91
  92 #if OPI_SUPPORT
  93 void OutputDev::opiBegin(GfxState *state, Dict *opiDict) {
  94 }
  95
  96 void OutputDev::opiEnd(GfxState *state, Dict *opiDict) {
  97 }
  98 #endif