gpxe/src/hci/mucurses/print.c

   1 #include <curses.h>
   2 #include <stdio.h>
   3 #include <stddef.h>
   4 #include <gpxe/vsprintf.h>
   5 #include "mucurses.h"
   6
   7 /** @file
   8  *
   9  * MuCurses printing functions
  10  *
  11  */
  12
  13 FILE_LICENCE ( GPL2_OR_LATER );
  14
  15 /**
  16  * Add a single-byte character and rendition to a window and advance
  17  * the cursor
  18  *
  19  * @v *win      window to be rendered in
  20  * @v ch        character to be added at cursor
  21  * @ret rc      return status code
  22  */
  23 int waddch ( WINDOW *win, const chtype ch ) {
  24         _wputch( win, ch, WRAP );
  25         return OK;
  26 }
  27
  28 /**
  29  * Add string of single-byte characters to a window
  30  *
  31  * @v *win      window to be rendered in
  32  * @v *str      standard c-style string
  33  * @v n         max number of chars from string to render
  34  * @ret rc      return status code
  35  */
  36 int waddnstr ( WINDOW *win, const char *str, int n ) {
  37         _wputstr( win, str, WRAP, n );
  38         return OK;
  39 }
  40
  41 struct printw_context {
  42         struct printf_context ctx;
  43         WINDOW *win;
  44 };
  45
  46 static void _printw_handler ( struct printf_context *ctx, unsigned int c ) {
  47         struct printw_context *wctx =
  48                 container_of ( ctx, struct printw_context, ctx );
  49
  50         _wputch( wctx->win, c | wctx->win->attrs, WRAP );
  51 }
  52
  53 /**
  54  * Print formatted output in a window
  55  *
  56  * @v *win      subject window
  57  * @v *fmt      formatted string
  58  * @v varglist  argument list
  59  * @ret rc      return status code
  60  */
  61 int vw_printw ( WINDOW *win, const char *fmt, va_list varglist ) {
  62         struct printw_context wctx;
  63
  64         wctx.win = win;
  65         wctx.ctx.handler = _printw_handler;
  66         vcprintf ( &(wctx.ctx), fmt, varglist );
  67         return OK;
  68 }
  69
  70 /**
  71  * Print formatted output to a window
  72  *
  73  * @v *win      subject window
  74  * @v *fmt      formatted string
  75  * @v ...       string arguments
  76  * @ret rc      return status code
  77  */
  78 int wprintw ( WINDOW *win, const char *fmt, ... ) {
  79         va_list args;
  80         int i;
  81
  82         va_start ( args, fmt );
  83         i = vw_printw ( win, fmt, args );
  84         va_end ( args );
  85         return i;
  86 }