#include <QApplication>
#include <QWidget>
#include <QVBoxLayout>
#include <QGridLayout>
#include <QPushButton>
#include <QSlider>
#include <QLCDNumber>
#include <QFont>

class LCDSlide: public QWidget{
	public:
		LCDSlide(QWidget *parent=NULL);
	};
LCDSlide::LCDSlide(QWidget *parent) : QWidget(parent){
	QLCDNumber *lcd=new QLCDNumber(2);
	lcd->setSegmentStyle(QLCDNumber::Filled);

	QSlider *slider=new QSlider(Qt::Horizontal);
	slider->setRange(0,100);
	slider->setValue(0);
	connect(slider, SIGNAL(valueChanged(int)), lcd, SLOT(display(int)));

	QVBoxLayout *layout=new QVBoxLayout;
	layout->addWidget(lcd);
	layout->addWidget(slider);
	setLayout(layout);
	}

class cust: public QWidget{
	public:
		cust(QWidget *parent=NULL);
	};

cust::cust(QWidget *parent) : QWidget(parent){
	
	QPushButton *quit=new QPushButton(tr("Keluar!!"),this);
	quit->setFont(QFont("times",18,QFont::Bold));
	connect(quit, SIGNAL(clicked()), qApp, SLOT(quit()));
	QGridLayout *grid=new QGridLayout;
	for(int row=0; row<3; ++row){
		for(int column=0; column<3; ++column){
			LCDSlide *lcdnslide=new LCDSlide;
			grid->addWidget(lcdnslide, row, column);
			}
		}
	QVBoxLayout *layout=new QVBoxLayout;
	layout->addWidget(quit);
	layout->addLayout(grid);
	setLayout(layout);
	}

int main(int argc, char *argv[]){
	QApplication app(argc, argv);
	cust bay;
	bay.show();
	return app.exec();
	}