#include "timeline.h"
 
timeline::timeline(QWidget *parent)
    : QWidget(parent)
{	
	layout= new QVBoxLayout(this);
	progressBar = new QProgressBar(this);
	progressBar->setRange(0, 100);
 
	// Construct a 5-second timeline with a frame range of 0 - 100
	timeLine = new QTimeLine(5000, this);
	timeLine->setFrameRange(0, 100);
	connect(timeLine, SIGNAL(frameChanged(int)), progressBar, SLOT(setValue(int)));
 
	// Clicking the push button will start the progress bar animation
	pushButton = new QPushButton(tr("Start animation"), this);
	connect(pushButton, SIGNAL(clicked()), timeLine, SLOT(start()));
	layout->addWidget(progressBar);
	layout->addWidget(pushButton);
	setLayout(layout);
}
 
timeline::~timeline()
{
   // No need to delete any QObject that got proper parent pointer.
 
}

#ifndef TIMELINE_H
#define TIMELINE_H
 
#include <QtGui/QWidget>
#include "ui_timeline.h"
#include <QVBoxLayout>
#include <QTimeLine>
#include <QProgressBar>
#include <QPushButton>
class timeline : public QWidget
{
    Q_OBJECT
 
public:
	timeline(QWidget *parent = 0);
    ~timeline();
 
private:
	QPushButton *pushButton;
	QTimeLine *timeLine;
	QProgressBar *progressBar;
	QVBoxLayout *layout;
};
 
#endif // TIMELINE_H