view/aaViewUtils.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent tw=79 ft=cpp: */
   3 /*
   4  * Copyright (C) 2007 Sergey Yanovich <ynvich@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #include "prtime.h"
  23 #include "nsTextFormatter.h"
  24
  25 #include "aaViewUtils.h"
  26
  27 void
  28 TruncateResult(nsAString &aStr)
  29 {
  30   PRUint32 len = aStr.Length();
  31   if (! aStr[len - 1])
  32     aStr.SetLength(len - 1);
  33 }
  34
  35 void
  36 assignDouble(nsAString &aStr, double val)
  37 {
  38   const PRUnichar *fmt = (PRUnichar *) L"%.2f";
  39   nsTextFormatter::ssprintf(aStr, fmt, val);
  40   TruncateResult(aStr);
  41 }
  42
  43 void
  44 assignSignificantDouble(nsAString &aStr, double val)
  45 {
  46   const PRUnichar *fmt = (PRUnichar *) L"%f";
  47   nsTextFormatter::ssprintf(aStr, fmt, val);
  48
  49   PRUint32 k=aStr.Length(), dot = 0, last = 0;
  50   while (--k)
  51   {
  52     if (aStr[k]=='\0')
  53       continue;
  54     if (aStr[k]!='0' && !last)
  55       last = k;
  56     if (aStr[k]=='.')
  57      dot = k;
  58   }
  59   if (dot && last) {
  60     aStr.SetLength(last + 1);
  61   } else {
  62     TruncateResult(aStr);
  63   }
  64 }
  65
  66 void
  67 assignDate(nsAString &aStr, PRTime time)
  68 {
  69   const PRUnichar *fmt = (PRUnichar *) L"%04u-%02u-%02u";
  70   PRExplodedTime tm;
  71   PR_ExplodeTime(time, &PR_LocalTimeParameters, &tm);
  72   nsTextFormatter::ssprintf(aStr, fmt, tm.tm_year, tm.tm_month + 1, tm.tm_mday);
  73   TruncateResult(aStr);
  74 }