124 lines
3.8 KiB
C++
124 lines
3.8 KiB
C++
#include <qapplication.h>
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#include <qwidget.h>
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#include <qfont.h>
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#include <qlabel.h>
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#include <qgroupbox.h>
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#include <qlayout.h>
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#include <qwt_thermo.h>
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#include <qwt_color_map.h>
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class ValueBar: public QWidget
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{
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public:
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ValueBar( Qt::Orientation orientation,
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const QString &text, QWidget *parent, double value = 0.0 ):
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QWidget( parent )
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{
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d_label = new QLabel( text, this );
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d_label->setFont( QFont( "Helvetica", 10 ) );
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d_thermo = new QwtThermo( this );
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d_thermo->setOrientation( orientation );
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d_thermo->setScale( 0.0, 100.0 );
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d_thermo->setValue( value );
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d_thermo->setFont( QFont( "Helvetica", 8 ) );
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d_thermo->setPipeWidth( 6 );
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d_thermo->setScaleMaxMajor( 6 );
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d_thermo->setScaleMaxMinor( 5 );
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d_thermo->setFillBrush( Qt::darkMagenta );
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#if 0
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QwtLinearColorMap *colorMap =
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new QwtLinearColorMap( Qt::blue, Qt::red );
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colorMap->addColorStop( 0.2, Qt::yellow );
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colorMap->addColorStop( 0.3, Qt::cyan );
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colorMap->addColorStop( 0.4, Qt::green );
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colorMap->addColorStop( 0.5, Qt::magenta );
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colorMap->setMode( QwtLinearColorMap::FixedColors );
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d_thermo->setColorMap( colorMap );
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#endif
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QVBoxLayout *layout = new QVBoxLayout( this );
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layout->setMargin( 0 );
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layout->setSpacing( 0 );
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if ( orientation == Qt::Horizontal )
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{
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d_label->setAlignment( Qt::AlignCenter );
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d_thermo->setScalePosition( QwtThermo::LeadingScale );
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layout->addWidget( d_label );
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layout->addWidget( d_thermo );
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}
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else
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{
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d_label->setAlignment( Qt::AlignRight );
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d_thermo->setScalePosition( QwtThermo::TrailingScale );
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layout->addWidget( d_thermo, 10, Qt::AlignHCenter );
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layout->addWidget( d_label, 0 );
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}
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}
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void setValue( double value )
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{
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d_thermo->setValue( value );
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}
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private:
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QLabel *d_label;
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QwtThermo *d_thermo;
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};
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class SysInfo : public QFrame
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{
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public:
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SysInfo( QWidget *parent = NULL ):
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QFrame( parent )
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{
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QGroupBox *memBox = new QGroupBox( "Memory Usage", this );
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memBox->setFont( QFont( "Helvetica", 10 ) );
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QVBoxLayout *memLayout = new QVBoxLayout( memBox );
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memLayout->setMargin( 15 );
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memLayout->setSpacing( 5 );
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Qt::Orientation o = Qt::Horizontal;
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memLayout->addWidget( new ValueBar( o, "Used", memBox, 57 ) );
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memLayout->addWidget( new ValueBar( o, "Shared", memBox, 17 ) );
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memLayout->addWidget( new ValueBar( o, "Cache", memBox, 30 ) );
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memLayout->addWidget( new ValueBar( o, "Buffers", memBox, 22 ) );
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memLayout->addWidget( new ValueBar( o, "Swap Used", memBox, 57 ) );
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memLayout->addWidget( new QWidget( memBox ), 10 ); // spacer
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QGroupBox *cpuBox = new QGroupBox( "Cpu Usage", this );
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cpuBox->setFont( QFont( "Helvetica", 10 ) );
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QHBoxLayout *cpuLayout = new QHBoxLayout( cpuBox );
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cpuLayout->setMargin( 15 );
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cpuLayout->setSpacing( 5 );
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o = Qt::Vertical;
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cpuLayout->addWidget( new ValueBar( o, "User", cpuBox, 57 ) );
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cpuLayout->addWidget( new ValueBar( o, "Total", cpuBox, 73 ) );
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cpuLayout->addWidget( new ValueBar( o, "System", cpuBox, 16 ) );
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cpuLayout->addWidget( new ValueBar( o, "Idle", cpuBox, 27 ) );
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QHBoxLayout *layout = new QHBoxLayout( this );
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layout->setMargin( 10 );
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layout->addWidget( memBox, 10 );
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layout->addWidget( cpuBox, 0 );
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}
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};
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int main ( int argc, char **argv )
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{
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QApplication a( argc, argv );
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SysInfo info;
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info.resize( info.sizeHint().expandedTo( QSize( 600, 400 ) ) );
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info.show();
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int rv = a.exec();
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return rv;
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}
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