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image.h

Go to the documentation of this file.

#ifndef __OUR_IMAGE_TAG
#define __OUR_IMAGE_TAG

#include<stdio.h>
#include <string>
#include "memory.h"

using namespace std;

#ifdef NO_MAGICK

int ReadJPEG(const char *filename, 
             int & height, int & width, 
             unsigned char * & image_buffer);

#else
#include <Magick++.h>
#endif

//the following are functions that used only by a GUI, we allow you to
//remove the gui and any of its overhead by defining NO_GUI 
#ifndef NO_GUI
#include <gtk/gtk.h>

void PixbufDestroy(guchar *pixels, gpointer data);

void new_window(GtkWidget * image, char * name);
#endif

struct filter_exception{
  unsigned int line_number;
  string description;
  string file_name;
};


#define MAP_SIZE 256
// 256 is 8-bits

struct COLOR{
  unsigned char red;
  unsigned char green;
  unsigned char blue;
};

bool is_imagefile(string FileName);


class GrayImage{
  friend class ColorImage;
public:
  GrayImage();

  GrayImage(unsigned int height, unsigned int width);

  GrayImage(string FileName);

#ifndef NO_MAGICK

  GrayImage(Magick::Image & magick_image);

  void fromMagickImage(Magick::Image & magick_image);
#endif
  
  GrayImage(const GrayImage & other);
  
  ~GrayImage();

  GrayImage & operator = (GrayImage & rhs);

  unsigned char & elementAt(unsigned int x, unsigned int y);
  
#ifndef NO_GUI

  GtkWidget *  toGTK();

  GdkPixbuf *  toGDK();
#endif
  
  void readFile(string FileName);

  void resize(int width, int height);  
  
  void cropCopy(const unsigned int x, const unsigned int y, GrayImage
                & to);

  GrayImage * cropCopy(const unsigned int x, const unsigned int y,
                       const unsigned int width, const unsigned int height);
  
  GrayImage * copy();
  
  void sample(GrayImage & to);
  
  void equalize();

  unsigned int getHeight(void);

  unsigned int getWidth(void);

  unsigned char* getData(void);
protected:
  unsigned int height;
  unsigned int width;
  unsigned char * data;
  bool is_set;
};



class ColorImage{ 
  friend class GrayImage;
public:

  ColorImage();
  
  ColorImage(unsigned int height, unsigned int width);

  ColorImage(string FileName);

#ifndef NO_MAGICK

  ColorImage(Magick::Image & magick_image);

  void fromMagickImage(Magick::Image & magick_image);
#endif
  
  ColorImage(const ColorImage & other);

  ~ColorImage();
  
  void readFile(string FileName);

#ifndef NO_GUI

  GtkWidget *  toGTK();

  GdkPixbuf *  toGDK();
#endif
  

  GrayImage * toGrayImage();
  
  void cropCopy(const unsigned int x, const unsigned int y, ColorImage & to);

  ColorImage * cropCopy(const unsigned int x, const unsigned int y,
                        const unsigned int width, const unsigned int height);
  
  ColorImage * copy();

  void sample(ColorImage & to);
  
  void equalize();

  COLOR & elementAt(unsigned int x, unsigned int y);
  
  void dot(unsigned int x, unsigned int y, unsigned char red, unsigned char
           green, unsigned char blue);
  
  void box(unsigned int x, unsigned int y, unsigned int width,
           unsigned int height, unsigned char red, unsigned char
           green, unsigned char blue);

  unsigned int getHeight(void);

  unsigned int getWidth(void);

  COLOR * getData(void);
  
protected:
  int height;
  int width;
  COLOR * data;
  bool is_set;
};
#endif

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