git.gag.com Git - debian/openrocket/blob - src/net/sf/openrocket/gui/dialogs/MotorDatabaseLoadingDialog.java

   1 package net.sf.openrocket.gui.dialogs;
   2
   3 import java.awt.Window;
   4 import java.awt.event.ActionEvent;
   5 import java.awt.event.ActionListener;
   6
   7 import javax.swing.JDialog;
   8 import javax.swing.JLabel;
   9 import javax.swing.JPanel;
  10 import javax.swing.JProgressBar;
  11 import javax.swing.Timer;
  12
  13 import net.miginfocom.swing.MigLayout;
  14 import net.sf.openrocket.database.ThrustCurveMotorSetDatabase;
  15 import net.sf.openrocket.logging.LogHelper;
  16 import net.sf.openrocket.startup.Application;
  17 import net.sf.openrocket.util.GUIUtil;
  18
  19 public class MotorDatabaseLoadingDialog extends JDialog {
  20         private static final LogHelper log = Application.getLogger();
  21
  22
  23         private MotorDatabaseLoadingDialog(Window parent) {
  24                 super(parent, "Loading motors", ModalityType.APPLICATION_MODAL);
  25
  26                 JPanel panel = new JPanel(new MigLayout("fill"));
  27                 panel.add(new JLabel("Loading motors..."), "wrap para");
  28
  29                 JProgressBar progress = new JProgressBar();
  30                 progress.setIndeterminate(true);
  31                 panel.add(progress, "growx");
  32
  33                 this.add(panel);
  34                 this.pack();
  35                 this.setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
  36                 this.setLocationByPlatform(true);
  37                 GUIUtil.setWindowIcons(this);
  38         }
  39
  40
  41         /**
  42          * Check whether the motor database is loaded and block until it is.
  43          * An uncloseable modal dialog window is opened while loading.
  44          *
  45          * @param parent        the parent window for the dialog, or <code>null</code>
  46          */
  47         public static void check(Window parent) {
  48                 final ThrustCurveMotorSetDatabase db = Application.getMotorSetDatabase();
  49                 if (db.isLoaded())
  50                         return;
  51
  52                 log.info(1, "Motor database not loaded yet, displaying dialog");
  53
  54                 final MotorDatabaseLoadingDialog dialog = new MotorDatabaseLoadingDialog(parent);
  55
  56                 final Timer timer = new Timer(100, new ActionListener() {
  57                         private int count = 0;
  58
  59                         @Override
  60                         public void actionPerformed(ActionEvent e) {
  61                                 count++;
  62                                 if (db.isLoaded()) {
  63                                         log.debug("Database loaded, closing dialog");
  64                                         dialog.setVisible(false);
  65                                 } else if (count % 10 == 0) {
  66                                         log.debug("Database not loaded, count=" + count);
  67                                 }
  68                         }
  69                 });
  70
  71                 db.setInUse();
  72                 timer.start();
  73                 dialog.setVisible(true);
  74                 timer.stop();
  75
  76                 log.debug("Motor database now loaded");
  77         }
  78
  79 }