release/src/router/apcupsd/src/win32/meter.cpp

   1 /*
   2  * Copyright (C) 2009 Adam Kropelin
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of version 2 of the GNU General
   6  * Public License as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public
  14  * License along with this program; if not, write to the Free
  15  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  16  * MA 02111-1307, USA.
  17  */
  18
  19 #include <windows.h>
  20 #include <commctrl.h>
  21 #include "meter.h"
  22
  23 Meter::Meter(HWND hwnd, UINT id, int warn, int critical, int level) :
  24    _warn(warn),
  25    _critical(critical),
  26    _level(level)
  27 {
  28    _hwnd = GetDlgItem(hwnd, id);
  29 }
  30
  31 void Meter::Set(int level)
  32 {
  33    if (level == _level)
  34       return;
  35
  36    SendMessage(_hwnd, PBM_SETPOS, level, 0);
  37    _level = level;
  38
  39    // Figure out bar color.
  40    COLORREF color;
  41    if (_warn > _critical)
  42    {
  43       // Low is critical
  44       if (level > _warn)
  45          color = GREEN;
  46       else if (level > _critical)
  47          color = YELLOW;
  48       else
  49          color = RED;
  50    }
  51    else
  52    {
  53       // High is critical
  54       if (level >= _critical)
  55          color = RED;
  56       else if (level >= _warn)
  57          color = YELLOW;
  58       else
  59          color = GREEN;
  60    }
  61
  62    SendMessage(_hwnd, PBM_SETBARCOLOR, 0, color);
  63 }