source: tags/initial/PHYLO/PH_display.hxx

#define SPECIES_NAME_LEN 10    // only for displaying speciesnames
 
extern char **filter_text;

class AP_display{
          AW_device *device;                   // device to draw in
          AW_pos screen_width;                 // dimensions of main screen
          AW_pos screen_height;
          long cell_width;                     // width and height of one cell
          long cell_height;
          long cell_offset;                    // don't write on base line of cell
          long horiz_page_start;               // number of first element in this page 
          long vert_page_start;          
          long vert_last_view_start;           // last value of scrollbars
          long horiz_last_view_start;
          long total_cells_horiz;
          long total_cells_vert;
          display_type display_what;         
          long horiz_page_size;                // page size in cells (how many cells per page,
          long vert_page_size;                 // vertical and horizontal)
          long off_dx;                         // offset values for devic.shift_dx(y)
          long off_dy; 
          
          void set_scrollbar_steps(AW_window *,long,long,long,long); 
          void print(void);                    // print private parameters (debugging)
          

public:
          AP_display(void);               // constructor
   static AP_display *apdisplay;
          void initialize(display_type);
          void display(void);                  // display data (according to display type: matrix ...)
          display_type displayed(void) { return display_what; };
          void clear_window(void) { if(device) device->clear(); };
          void resized(void);                  // call after resize main window
          void monitor_vertical_scroll_cb(AW_window *);    // vertical and horizontal
          void monitor_horizontal_scroll_cb(AW_window *);  // scrollbar movements
};


class AP_display_status
{
          AW_device *device;
          short font_width; 
          short font_height;
          AW_pos max_x;                           // screensize
          AW_pos max_y;
          AW_pos x_pos;                           // position of cursor
          AW_pos y_pos;
          AW_pos tab_pos;
                                     
public:
          AP_display_status(AW_device *);
          void set_origin(void)              { device->reset();
                                               device->shift_x(font_width); 
                                               device->shift_y(font_height); };
          void newline(void)                 { x_pos=0; 
                                               y_pos+=(y_pos>=max_y) ? 0.0 : 1.0; };
          AW_pos get_size(char c)            { return((c=='x') ? max_x : max_y); };
          void set_cursor(AW_pos x,AW_pos y) { x_pos=(x<=max_x) ? x : x_pos; 
                                               y_pos=(y<=max_y) ? y : y_pos; };
          void move_x(AW_pos d)              { x_pos+=(x_pos+d<=max_x) ? d : 0; };
          void move_y(AW_pos d)              { y_pos+=(y_pos+d<=max_y) ? d : 0; };
          void set_cursor_x(AW_pos x)        { x_pos = x; };
          void set_cursor_y(AW_pos y)        { y_pos = y; };
          AW_pos get_cursor_pos(char c)      { return((c=='x') ? x_pos : y_pos); };
          void set_tab(void)                 { tab_pos = x_pos; };        
          AW_pos get_tab(void)               { return tab_pos; };
          void write(const char *);                           // text to write
          void write(long);                             // converts long 
          void write(double);                           // float to text
          void clear(void);
};