apps/kinfocenter/memory/physicalMemoryChart.cpp

   1 /***************************************************************************
   2  *   KT list view item task implementation.                                *
   3  *   --------------------------------------------------------------------  *
   4  *   Copyright (C) 1999, Gary Meyer <gary@meyer.net>                       *
   5  *   --------------------------------------------------------------------  *
   6  *   This program is free software; you can redistribute it and/or modify  *
   7  *   it under the terms of the GNU General Public License as published by  *
   8  *   the Free Software Foundation; either version 2 of the License, or     *
   9  *   (at your option) any later version.                                   *
  10  ***************************************************************************/
  11
  12 #include "physicalMemoryChart.h"
  13
  14 #include <klocale.h>
  15 #include <kdebug.h>
  16
  17 #include "base.h"
  18
  19
  20 PhysicalMemoryChart::PhysicalMemoryChart(QWidget* parent) :
  21         Chart(parent) {
  22
  23         colorsInitialized = false;
  24 }
  25
  26 void PhysicalMemoryChart::paintEvent(QPaintEvent* /*event*/) {
  27         /* RAM usage: */
  28         /* don't rely on the SHARED_MEM value since it may refer to
  29          * the size of the System V sharedmem in 2.4.x. Calculate instead! */
  30
  31         t_memsize bufferMemory;
  32
  33         bufferMemory = 0;
  34 #if !defined(__svr4__) || !defined(sun)
  35 #if !defined(__NetBSD__) && !defined(__OpenBSD__)
  36         bufferMemory = ZERO_IF_NO_INFO(memoryInfos[BUFFER_MEM]);
  37 #endif
  38 #endif
  39         t_memsize cachedMemory = ZERO_IF_NO_INFO(memoryInfos[CACHED_MEM]);
  40         t_memsize freeMemory = ZERO_IF_NO_INFO(memoryInfos[FREE_MEM]);
  41         t_memsize totalMemory = ZERO_IF_NO_INFO(memoryInfos[TOTAL_MEM]) - bufferMemory - cachedMemory - freeMemory;
  42
  43         QList<t_memsize> used;
  44         used.append(freeMemory);
  45         used.append(cachedMemory);
  46         used.append(bufferMemory);
  47         used.append(totalMemory);
  48
  49         if (!colorsInitialized) {
  50                 colorsInitialized = true;
  51                 texts.append(i18n("Free Physical Memory"));
  52                 colors.append(COLOR_FREE_MEMORY); // free
  53                 texts.append(i18n("Disk Cache"));
  54                 colors.append(QColor(88, 176, 36)); // cached
  55                 texts.append(i18n("Disk Buffers"));
  56                 colors.append(QColor(118, 237, 49)); // buffer
  57                 texts.append(i18n("Application Data"));
  58                 colors.append(COLOR_USED_MEMORY); // used+shared
  59         }
  60
  61         drawChart(memoryInfos[TOTAL_MEM], used, colors, texts);
  62
  63 }