Hi, something weird happened with my program, I mean when I run it I see only grey frame (like I had only JFrame object in my app), then I minimalize application, maximalize it and only then I see all components painted (JButton, rectangels and lines inside Jpanel,...). Changing of frame size helped too, but now I have fixed size, so this is not anoption. Can you tell me what can cause that behaviour.
This is class which draw everything:
public class Simulation{
JFrame frame;
JPanel background;
RoadSystem roads;
Stats stats;
Settings settings;
JButton startButton;
public Simulation() {
frame = new JFrame();
frame.setSize(1200,800);
frame.setTitle("Traffic simulator");
frame.setResizable(false);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
background = new JPanel(new GridBagLayout());
background.setBackground(Color.lightGray);
roads = new RoadSystem();
background.add(roads, new GridBagConstraints(0,0,1,3,0.1,1.0,
GridBagConstraints.WEST, GridBagConstraints.NONE,
new Insets(10, 10, 10, 0), 0, 0));
stats = new Stats();
background.add(stats, new GridBagConstraints(1,0,1,1,1.0,1.0,
GridBagConstraints.WEST, GridBagConstraints.BOTH,
new Insets(10, 0, 10, 10), 0, 0));
settings = new Settings();
background.add(settings , new GridBagConstraints(1,1,1,1,1.0,1.0,
GridBagConstraints.WEST, GridBagConstraints.BOTH,
new Insets(10, 0, 10, 10), 0, 0));
startButton = new JButton();
background.add(startButton, new GridBagConstraints(1,2,1,1,1.0,0.2,
GridBagConstraints.WEST, GridBagConstraints.BOTH,
new Insets(10, 0, 10, 10), 0, 0));
frame.add(background);
}
