src/exim_monitor/em_text.c

   1 /*************************************************
   2 *               Exim Monitor                     *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2012 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8
   9 #include "em_hdr.h"
  10
  11
  12 /* This module contains functions for displaying text in a
  13 text widget. It is not used for the log widget, because that
  14 is dynamically updated and has special scrolling requirements. */
  15
  16
  17 /* Count of characters displayed */
  18
  19 static int text_count = 0;
  20
  21
  22 /*************************************************
  23 *               Empty the widget                 *
  24 *************************************************/
  25
  26 void text_empty(Widget w)
  27 {
  28 XawTextBlock b;
  29 b.firstPos = 0;
  30 b.ptr = CS &b;
  31 b.format = FMT8BIT;
  32 b.length = 0;
  33 XawTextReplace(w, 0, text_count, &b);
  34 text_count = 0;
  35 XawTextSetInsertionPoint(w, text_count);
  36 }
  37
  38
  39
  40 /*************************************************
  41 *                 Display text                   *
  42 *************************************************/
  43
  44 void text_show(Widget w, uschar *s)
  45 {
  46 XawTextBlock b;
  47 b.firstPos = 0;
  48 b.ptr = CS s;
  49 b.format = FMT8BIT;
  50 b.length = Ustrlen(s);
  51 XawTextReplace(w, text_count, text_count, &b);
  52 text_count += b.length;
  53 XawTextSetInsertionPoint(w, text_count);
  54 }
  55
  56
  57 /*************************************************
  58 *           Display text from format             *
  59 *************************************************/
  60
  61 void text_showf(Widget w, char *s, ...) PRINTF_FUNCTION(2,3);
  62
  63 void text_showf(Widget w, char *s, ...)
  64 {
  65 va_list ap;
  66 uschar buffer[1024];
  67 va_start(ap, s);
  68 vsprintf(CS buffer, s, ap);
  69 va_end(ap);
  70 text_show(w, buffer);
  71 }
  72
  73 /* End of em_text.c */