arospdf/xpdf/ImageOutputDev.h

   1 //========================================================================
   2 //
   3 // ImageOutputDev.h
   4 //
   5 // Copyright 1998-2003 Glyph & Cog, LLC
   6 //
   7 //========================================================================
   8
   9 #ifndef IMAGEOUTPUTDEV_H
  10 #define IMAGEOUTPUTDEV_H
  11
  12 #include <aconf.h>
  13
  14 #ifdef USE_GCC_PRAGMAS
  15 #pragma interface
  16 #endif
  17
  18 #include <stdio.h>
  19 #include "gtypes.h"
  20 #include "OutputDev.h"
  21
  22 class GfxState;
  23
  24 //------------------------------------------------------------------------
  25 // ImageOutputDev
  26 //------------------------------------------------------------------------
  27
  28 class ImageOutputDev: public OutputDev {
  29 public:
  30
  31   // Create an OutputDev which will write images to files named
  32   // <fileRoot>-NNN.<type>.  Normally, all images are written as PBM
  33   // (.pbm) or PPM (.ppm) files.  If <dumpJPEG> is set, JPEG images are
  34   // written as JPEG (.jpg) files.
  35   ImageOutputDev(char *fileRootA, GBool dumpJPEGA);
  36
  37   // Destructor.
  38   virtual ~ImageOutputDev();
  39
  40   // Check if file was successfully created.
  41   virtual GBool isOk() { return ok; }
  42
  43   // Does this device use beginType3Char/endType3Char?  Otherwise,
  44   // text in Type 3 fonts will be drawn with drawChar/drawString.
  45   virtual GBool interpretType3Chars() { return gFalse; }
  46
  47   // Does this device need non-text content?
  48   virtual GBool needNonText() { return gTrue; }
  49
  50   //---- get info about output device
  51
  52   // Does this device use upside-down coordinates?
  53   // (Upside-down means (0,0) is the top left corner of the page.)
  54   virtual GBool upsideDown() { return gTrue; }
  55
  56   // Does this device use drawChar() or drawString()?
  57   virtual GBool useDrawChar() { return gFalse; }
  58
  59   //----- image drawing
  60   virtual void drawImageMask(GfxState *state, xObject *ref, Stream *str,
  61                              int width, int height, GBool invert,
  62                              GBool inlineImg);
  63   virtual void drawImage(GfxState *state, xObject *ref, Stream *str,
  64                          int width, int height, GfxImageColorMap *colorMap,
  65                          int *maskColors, GBool inlineImg);
  66
  67 private:
  68
  69   char *fileRoot;               // root of output file names
  70   char *fileName;               // buffer for output file names
  71   GBool dumpJPEG;               // set to dump native JPEG files
  72   int imgNum;                   // current image number
  73   GBool ok;                     // set up ok?
  74 };
  75
  76 #endif