int main(int argc, char * argv[])
{
	QApplication a(argc, argv);
	
	MainForm mainform = MainForm();
	mainform.show();

	/* susikuriam QCanvas, kuriame braizysim Red/Black medi */
	QCanvas canvas = QCanvas();
	canvas.resize(mainform.visualFrame->width() - 2, mainform.visualFrame->height() - 2);
	canvas.setBackgroundColor(QColor(255, 200, 255));

	/* norint atvaizduoti QCanvas objekta, ji turime paduoti QCanvasView objektui */
	QCanvasView view = QCanvasView(&canvas, mainform.visualFrame);
	view.resize(mainform.visualFrame->width(), mainform.visualFrame->height());
	view.show();

    QCanvasLine i = QCanvasLine(&canvas);
    i.setPoints(0, 0, 600, 600);
    i.setPen( QPen(QColor(rand()%32*8,rand()%32*8,rand()%32*8), 6) );
    i.show();
	
	//a.connect(&a, SIGNAL(lastWindowClosed()), &a, SLOT(quit()));
	return a.exec();
}