CONFIG += mobility
MOBILITY += systeminfo

using namespace QtMobility;

#ifndef SYSTEMDISPLAYINFO_H
#define SYSTEMDISPLAYINFO_H
 
#include <QtGui/QWidget>
#include "ui_SystemDisplayInfo.h"
#include <qsysteminfo.h>
 
using namespace QtMobility;
class SystemDisplayInfo : public QWidget
{
    Q_OBJECT
 
public:
	SystemDisplayInfo(QWidget *parent = 0);
    ~SystemDisplayInfo();
 
public slots:
	void listDisplayInformation();
	void resetAllFields();
 
private:
    Ui::SystemDisplayInfo ui;
    QSystemDisplayInfo* displayInfo;
};
 
#endif // SYSTEMDISPLAYINFO_H

#include "SystemDisplayInfo.h"
 
SystemDisplayInfo::SystemDisplayInfo(QWidget *parent)
    : QWidget(parent)
{
	ui.setupUi(this);
	displayInfo = new QSystemDisplayInfo();
 
		QObject::connect(ui.listDisplayInfoButton, 
						SIGNAL(clicked()),
						this, 
						SLOT(listDisplayInformation()));	
		QObject::connect(ui.resetButton, 
						SIGNAL(clicked()),
						this, 
						SLOT(resetAllFields()));	
}
 
SystemDisplayInfo::~SystemDisplayInfo()
{
	delete displayInfo;
	displayInfo = NULL;
}
 
void SystemDisplayInfo::listDisplayInformation()
{
	QString colorDepthStr = QString::number(displayInfo->colorDepth(0));
	ui.colorDepthLabel->setText(colorDepthStr);
 
	QString brightnessStr = QString::number(displayInfo->displayBrightness(0));
	ui.brightnessLabel->setText(brightnessStr);
}
 
void SystemDisplayInfo::resetAllFields()
{
	ui.colorDepthLabel->clear();
	ui.brightnessLabel->clear();
}