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QBtSystemInfo.cpp
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QBtSystemInfo.cpp
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/********************************************************************
* Copyright (C) Piotr Pszczolkowski
*-------------------------------------------------------------------
* This file is part of Beesoft Commander.
*
* Beesoft Commander 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.
*
* Beesoft Commander 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 Beesoft Commander; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*-------------------------------------------------------------------
* Project : Beesoft Commander
* File : QBtSystemInfo.h
* Author : Piotr Pszczolkowski
* Contact : piotr@beesoft.org
* Creation date: 25.08.2007
*******************************************************************/
/*------- include files:
-------------------------------------------------------------------*/
#include "QBtSystemInfo.h"
#include "QBtShared.h"
#include <QStackedWidget>
#include <QTabBar>
#include <QTreeWidget>
#include <QPushButton>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QHeaderView>
#include <QProcess>
#include <QtDebug>
/*------- constants:
-------------------------------------------------------------------*/
const char* const QBtSystemInfo::CAPTION = QT_TR_NOOP( "System information" );
const char* const QBtSystemInfo::DISKS = QT_TR_NOOP( "&Disks" );
const char* const QBtSystemInfo::MEMORY = QT_TR_NOOP( "&Memory (Mb)" );
const char* const QBtSystemInfo::CLOSE = QT_TR_NOOP( "&Close" );
const char* const QBtSystemInfo::DSK_FS = QT_TR_NOOP( "File system" );
const char* const QBtSystemInfo::DSK_TYPE = QT_TR_NOOP( "Type" );
const char* const QBtSystemInfo::DSK_SIZE = QT_TR_NOOP( "Size" );
const char* const QBtSystemInfo::DSK_USED = QT_TR_NOOP( "Used" );
const char* const QBtSystemInfo::DSK_AVAIL = QT_TR_NOOP( "Available" );
const char* const QBtSystemInfo::DSK_USE = QT_TR_NOOP( "Use" );
const char* const QBtSystemInfo::DSK_MOUNT = QT_TR_NOOP( "Mounted on" );
const char* const QBtSystemInfo::MEM_EMPTY = QT_TR_NOOP( " " );
const char* const QBtSystemInfo::MEM_TOTAL = QT_TR_NOOP( "Total" );
const char* const QBtSystemInfo::MEM_USED = QT_TR_NOOP( "Used" );
const char* const QBtSystemInfo::MEM_FREE = QT_TR_NOOP( "Free" );
const char* const QBtSystemInfo::MEM_SHARED = QT_TR_NOOP( "Shared" );
const char* const QBtSystemInfo::MEM_BUFFERS = QT_TR_NOOP( "Buffers" );
const char* const QBtSystemInfo::MEM_CACHED = QT_TR_NOOP( "Cached" );
//*******************************************************************
// QBtSystemInfo CONSTRUCTOR
//*******************************************************************
QBtSystemInfo::QBtSystemInfo( QWidget* const in_parent ) : QDialog( in_parent )
, wstack_ ( new QStackedWidget )
, tbar_ ( new QTabBar )
, disk_view_ ( new QTreeWidget )
, memory_view_ ( new QTreeWidget )
, close_ ( new QPushButton( tr( CLOSE ) ) )
{
setWindowTitle( tr( CAPTION ) );
QFontMetrics fm( font() );
const qint32 h = fm.height() + 2;
disk_view_->setRootIsDecorated( false );
disk_view_->setAlternatingRowColors( true );
disk_view_->setColumnCount( DSK_COL_COUNT );
disk_view_->header()->setMaximumHeight( h );
QTreeWidgetItem* const dsk_hdr = new QTreeWidgetItem;
dsk_hdr->setText( DSK_FS_IDX , tr( DSK_FS ) );
dsk_hdr->setText( DSK_TYPE_IDX , tr( DSK_TYPE ) );
dsk_hdr->setText( DSK_SIZE_IDX , tr( DSK_SIZE ) );
dsk_hdr->setText( DSK_USED_IDX , tr( DSK_USED ) );
dsk_hdr->setText( DSK_AVAIL_IDX, tr( DSK_AVAIL ) );
dsk_hdr->setText( DSK_USE_IDX , tr( DSK_USE ) );
dsk_hdr->setText( DSK_MOUNT_IDX, tr( DSK_MOUNT ) );
disk_view_->setHeaderItem( dsk_hdr );
memory_view_->setRootIsDecorated( false );
memory_view_->setAlternatingRowColors( true );
memory_view_->setColumnCount( MEM_COL_COUNT );
memory_view_->header()->setMaximumHeight( h );
QTreeWidgetItem* const mem_hdr = new QTreeWidgetItem;
mem_hdr->setText( MEM_EMPTY_IDX , tr( MEM_EMPTY ) );
mem_hdr->setText( MEM_TOTAL_IDX , tr( MEM_TOTAL ) );
mem_hdr->setText( MEM_USED_IDX , tr( MEM_USED ) );
mem_hdr->setText( MEM_FREE_IDX , tr( MEM_FREE ) );
mem_hdr->setText( MEM_SHARED_IDX , tr( MEM_SHARED ) );
mem_hdr->setText( MEM_BUFFERS_IDX, tr( MEM_BUFFERS ) );
mem_hdr->setText( MEM_CACHED_IDX , tr( MEM_CACHED ) );
memory_view_->setHeaderItem( mem_hdr );
tbar_->insertTab( DISK_IDX , tr( DISKS ) );
tbar_->insertTab( MEMORY_IDX, tr( MEMORY ) );
wstack_->insertWidget( DISK_IDX , disk_view_ );
wstack_->insertWidget( MEMORY_IDX, memory_view_ );
QHBoxLayout* const hbl = new QHBoxLayout;
hbl->addStretch( 100 );
hbl->addWidget( close_ );
QVBoxLayout* const vbl = new QVBoxLayout( this );
vbl->addWidget( tbar_ );
vbl->addWidget( wstack_ );
vbl->addLayout( hbl );
connect( close_, SIGNAL( clicked() ), this, SLOT( accept() ) );
connect( tbar_ , SIGNAL( currentChanged(int) ), this, SLOT( tab_changed(int) ) );
}
// end of QBtSystemInfo
//*******************************************************************
// tab_changed PRIVATE slot
//*******************************************************************
void QBtSystemInfo::tab_changed( const int in_idx )
{
wstack_->setCurrentIndex( in_idx );
}
// end of tab_changed
//*******************************************************************
// showEvent PRIVATE inherited
//*******************************************************************
void QBtSystemInfo::showEvent( QShowEvent* const in_event )
{
read_dsk_data();
read_mem_data();
QBtShared::resize( this, 40, 30 );
QDialog::showEvent( in_event );
}
// end of showEvent
//*******************************************************************
// read_dsk_data PRIVATE
//*******************************************************************
void QBtSystemInfo::read_dsk_data()
{
QStringList args;
args << "-h" << "-T";
QProcess sc;
sc.start( "df", args );
QByteArray data;
while( sc.waitForReadyRead() ) {
data += sc.readAll();
}
const QStringList text = QString::fromLocal8Bit( data ).split( '\n', QString::SkipEmptyParts );
for( qint32 i = 1; i < text.size(); ++i ) {
add_dsk_item( text[ i ].split( ' ', QString::SkipEmptyParts ) );
}
for( qint32 i = 0; i < DSK_COL_COUNT; ++i ) {
disk_view_->resizeColumnToContents( i );
}
}
// end of read_dsk_data
//*******************************************************************
// read_mem_data PRIVATE
//*******************************************************************
void QBtSystemInfo::read_mem_data()
{
QStringList args;
args << "-t" << "-o";
QProcess sc;
sc.start( "free", args );
QByteArray data;
while( sc.waitForReadyRead() ) {
data += sc.readAll();
}
const QStringList text = QString::fromLocal8Bit( data ).split( '\n', QString::SkipEmptyParts );
for( qint32 i = 1; i < text.size(); ++i ) {
add_mem_item( text[ i ].split( ' ', QString::SkipEmptyParts ) );
}
for( qint32 i = 0; i < MEM_COL_COUNT; ++i ) {
memory_view_->resizeColumnToContents( i );
}
}
// end of read_mem_data
//*******************************************************************
// add_dsk_item PRIVATE
//*******************************************************************
void QBtSystemInfo::add_dsk_item( const QStringList& in_info )
{
QTreeWidgetItem* const twi = new QTreeWidgetItem( disk_view_ );
twi->setTextAlignment( DSK_SIZE_IDX , Qt::AlignRight );
twi->setTextAlignment( DSK_USED_IDX , Qt::AlignRight );
twi->setTextAlignment( DSK_AVAIL_IDX, Qt::AlignRight );
twi->setTextAlignment( DSK_USE_IDX , Qt::AlignHCenter );
twi->setText( DSK_FS_IDX , in_info[ DSK_FS_IDX ] );
twi->setText( DSK_TYPE_IDX , in_info[ DSK_TYPE_IDX ] );
twi->setText( DSK_SIZE_IDX , in_info[ DSK_SIZE_IDX ] );
twi->setText( DSK_USED_IDX , in_info[ DSK_USED_IDX ] );
twi->setText( DSK_AVAIL_IDX, in_info[ DSK_AVAIL_IDX ] );
twi->setText( DSK_USE_IDX , in_info[ DSK_USE_IDX ] );
twi->setText( DSK_MOUNT_IDX, in_info[ DSK_MOUNT_IDX ] );
}
// end of add_dsk_item
//*******************************************************************
// add_mem_item PRIVATE
//*******************************************************************
void QBtSystemInfo::add_mem_item( const QStringList& in_info )
{
QTreeWidgetItem* const twi = new QTreeWidgetItem( memory_view_ );
twi->setTextAlignment( MEM_TOTAL_IDX , Qt::AlignRight );
twi->setTextAlignment( MEM_USED_IDX , Qt::AlignRight );
twi->setTextAlignment( MEM_FREE_IDX , Qt::AlignRight );
twi->setTextAlignment( MEM_SHARED_IDX , Qt::AlignRight );
twi->setTextAlignment( MEM_BUFFERS_IDX, Qt::AlignRight );
twi->setTextAlignment( MEM_CACHED_IDX , Qt::AlignRight );
const qint32 n = in_info.size();
if( MEM_EMPTY_IDX < n ) {
twi->setText( MEM_EMPTY_IDX, in_info[ MEM_EMPTY_IDX ] );
}
if( MEM_TOTAL_IDX < n ) {
twi->setText( MEM_TOTAL_IDX, in_info[ MEM_TOTAL_IDX ] );
}
if( MEM_USED_IDX < n ) {
twi->setText( MEM_USED_IDX, in_info[ MEM_USED_IDX ] );
}
if( MEM_FREE_IDX < n ) {
twi->setText( MEM_FREE_IDX, in_info[ MEM_FREE_IDX ] );
}
if( MEM_SHARED_IDX < n ) {
twi->setText( MEM_SHARED_IDX, in_info[ MEM_SHARED_IDX ] );
}
if( MEM_BUFFERS_IDX < n ) {
twi->setText( MEM_BUFFERS_IDX, in_info[ MEM_BUFFERS_IDX ] );
}
if( MEM_CACHED_IDX < n ) {
twi->setText( MEM_CACHED_IDX, in_info[ MEM_CACHED_IDX ] );
}
}
// end of add_mem_item