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      1 #include <curses.h>
      2 #include "mucurses.h"
      3 #include "cursor.h"
      4 
      5 /** @file
      6  *
      7  * MuCurses edging functions
      8  *
      9  */
     10 
     11 /**
     12  * Draw borders from single-byte characters and renditions around a
     13  * window
     14  *
     15  * @v *win	window to be bordered
     16  * @v verch	vertical chtype
     17  * @v horch	horizontal chtype
     18  * @ret rc	return status code
     19  */
     20 int box ( WINDOW *win, chtype verch, chtype horch ) {
     21 	chtype corner = '+' | win->attrs; /* default corner character */
     22 	return wborder( win, verch, verch, horch, horch,
     23 			corner, corner, corner, corner );
     24 }
     25 
     26 /**
     27  * Draw borders from single-byte characters and renditions around a
     28  * window
     29  *
     30  * @v *win	window to be bordered
     31  * @v ls	left side
     32  * @v rs	right side
     33  * @v ts	top
     34  * @v bs	bottom
     35  * @v tl	top left corner
     36  * @v tr	top right corner
     37  * @v bl	bottom left corner
     38  * @v br	bottom right corner
     39  * @ret rc	return status code
     40  */
     41 int wborder ( WINDOW *win, chtype ls, chtype rs,
     42 	      chtype ts, chtype bs, chtype tl,
     43 	      chtype tr, chtype bl, chtype br ) {
     44 	struct cursor_pos pos;
     45 
     46 	_store_curs_pos( win, &pos );
     47 	wmove(win,0,0);
     48 
     49 	_wputch(win,tl,WRAP);
     50 	while ( ( win->width - 1 ) - win->curs_x ) {
     51 		_wputch(win,ts,WRAP);
     52 	}
     53 	_wputch(win,tr,WRAP);
     54 
     55 	while ( ( win->height - 1 ) - win->curs_y ) {
     56 		_wputch(win,ls,WRAP);
     57 		wmove(win,win->curs_y,(win->width)-1);
     58 		_wputch(win,rs,WRAP);
     59 	}
     60 
     61 	_wputch(win,bl,WRAP);
     62 	while ( ( win->width -1 ) - win->curs_x ) {
     63 		_wputch(win,bs,WRAP);
     64 	}
     65 	_wputch(win,br,NOWRAP); /* do not wrap last char to leave
     66 				   cursor in last position */
     67 	_restore_curs_pos( win, &pos );
     68 
     69 	return OK;
     70 }
     71 
     72 /**
     73  * Create a horizontal line in a window
     74  *
     75  * @v *win	subject window
     76  * @v ch	rendition and character
     77  * @v n		max number of chars (wide) to render
     78  * @ret rc	return status code
     79  */
     80 int whline ( WINDOW *win, chtype ch, int n ) {
     81 	struct cursor_pos pos;
     82 
     83 	_store_curs_pos ( win, &pos );
     84 	while ( ( win->curs_x - win->width ) && n-- ) {
     85 		_wputch ( win, ch, NOWRAP );
     86 	}
     87 	_restore_curs_pos ( win, &pos );
     88 
     89 	return OK;
     90 }
     91 
     92 /**
     93  * Create a vertical line in a window
     94  *
     95  * @v *win	subject window
     96  * @v ch	rendition and character
     97  * @v n		max number of chars (high) to render
     98  * @ret rc	return status code
     99  */
    100 int wvline ( WINDOW *win, chtype ch, int n ) {
    101 	struct cursor_pos pos;
    102 
    103 	_store_curs_pos ( win, &pos );
    104 	while ( ( win->curs_y - win->height ) && n-- ) {
    105 		_wputch ( win, ch, NOWRAP );
    106 		wmove( win, ++(win->curs_y), pos.x);
    107 	}
    108 	_restore_curs_pos ( win, &pos );
    109 
    110 	return OK;
    111 }
    112