rainmeter-studio/Library/MeasureDiskSpace.cpp
2009-02-14 10:11:28 +00:00

134 lines
3.2 KiB
C++

/*
Copyright (C) 2001 Kimmo Pekkola
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#pragma warning(disable: 4996)
#include "MeasureDiskSpace.h"
#include "Rainmeter.h"
/*
** CMeasureDiskSpace
**
** The constructor
**
*/
CMeasureDiskSpace::CMeasureDiskSpace(CMeterWindow* meterWindow) : CMeasure(meterWindow)
{
m_Total = false;
}
/*
** ~CMeasureDiskSpace
**
** The destructor
**
*/
CMeasureDiskSpace::~CMeasureDiskSpace()
{
}
/*
** Update
**
** Updates the current disk free space value.
**
*/
bool CMeasureDiskSpace::Update()
{
if (!CMeasure::PreUpdate()) return false;
ULARGE_INTEGER i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes;
UINT type = GetDriveType(m_Drive.c_str());
if (type != DRIVE_CDROM && type != DRIVE_REMOVABLE) // Ignore CD-ROMS and removable drives
{
if(GetDiskFreeSpaceEx(m_Drive.c_str(), &i64FreeBytesToCaller, &i64TotalBytes, &i64FreeBytes))
{
LARGE_INTEGER tmpInt;
if (m_Total)
{
tmpInt.QuadPart = i64TotalBytes.QuadPart;
}
else
{
tmpInt.QuadPart = i64FreeBytes.QuadPart;
}
m_Value = (double)tmpInt.QuadPart;
}
}
else
{
m_Value = 0;
}
if (m_Label)
{
WCHAR volumeName[MAX_PATH];
GetVolumeInformation(m_Drive.c_str(), volumeName, MAX_PATH, NULL, NULL, NULL, NULL, 0);
m_LabelName = volumeName;
}
return PostUpdate();
}
/*
** GetStringValue
**
** Returns the time as string.
**
*/
const WCHAR* CMeasureDiskSpace::GetStringValue(bool autoScale, double scale, int decimals, bool percentual)
{
if (m_Label)
{
return CheckSubstitute(m_LabelName.c_str());
}
return CMeasure::GetStringValue(autoScale, scale, decimals, percentual);
}
/*
** ReadConfig
**
** Reads the measure specific configs.
**
*/
void CMeasureDiskSpace::ReadConfig(CConfigParser& parser, const WCHAR* section)
{
CMeasure::ReadConfig(parser, section);
m_Drive = parser.ReadString(section, L"Drive", L"C:\\");
m_Total = (1 == parser.ReadInt(section, L"Total", 0));
m_Label = (1 == parser.ReadInt(section, L"Label", 0));
// Set the m_MaxValue
ULARGE_INTEGER i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes;
UINT type = GetDriveType(m_Drive.c_str());
if (type != DRIVE_CDROM && type != DRIVE_REMOVABLE) // Ignore CD-ROMS and removable drives
{
if(GetDiskFreeSpaceEx(m_Drive.c_str(), &i64FreeBytesToCaller, &i64TotalBytes, &i64FreeBytes))
{
LARGE_INTEGER tmpInt;
tmpInt.QuadPart = i64TotalBytes.QuadPart;
m_MaxValue = (double)tmpInt.QuadPart;
}
}
}