drawingarea.h

Ocr source code. provides an Ocr engine that works in C++ language.

/* drawingarea.h : custom drawing area serves as a base class for the main
 *                 and training drawing areas
 * Author: Maxie D. Schmidt (created 5/31/2006)                            */

#ifndef _DRAWING_AREA_H_
#define _DRAWING_AREA_H_

#include <stdio.h>

#include <gtkmm/drawingarea.h>

#include "classnotes.h"
#include "parselist.h"
#include "parseutils.h"
#include "runutils.h"

// base class for main and training (main) windows:
class drawing_area : public Gtk::DrawingArea {

     public:
          drawing_area(int size_x = 0, int size_y = 0);

          virtual void refresh();
          void set_size(int size_x, int size_y);

     protected:
          virtual void draw_image();
          void draw_parse_boundary();
          void draw_parse_list(parse_list *plist);

};

// drawing area for showing gridded chars:
class grid_char_da : public Gtk::DrawingArea {

     public:
          grid_char_da();
          ~grid_char_da();

          void refresh();
          void set_size(int size_x, int size_y);
          void draw_letter_buf();
          void set_grid_draw_fill(bool tf);
          void draw_grid_fill();
          void draw_grid_lines();
          void set_grid_params(int gsx, int gsy, int gcx, int gcy);

     protected:
          unsigned char *letter_buf;
          box_t cur_char_box;
          grid_t grid_fill_matrix;
          bool grid_fill;
          int grid_offset_x, grid_offset_y;
          int gs_x, gs_y, gc_x, gc_y;

          bool on_expose_event(GdkEventExpose *event);
          void on_new_grid_cfg_letter(box_t char_box);

};

#endif