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.SplashScreen;
   4 import java.awt.Window;
   5 import java.awt.event.ActionEvent;
   6 import java.awt.event.ActionListener;
   7
   8 import javax.swing.JDialog;
   9 import javax.swing.JLabel;
  10 import javax.swing.JPanel;
  11 import javax.swing.JProgressBar;
  12 import javax.swing.Timer;
  13
  14 import net.miginfocom.swing.MigLayout;
  15 import net.sf.openrocket.database.ThrustCurveMotorSetDatabase;
  16 import net.sf.openrocket.l10n.Translator;
  17 import net.sf.openrocket.logging.LogHelper;
  18 import net.sf.openrocket.startup.Application;
  19 import net.sf.openrocket.util.GUIUtil;
  20
  21 /**
  22  * A progress dialog displayed while loading motors.
  23  *
  24  * @author Sampo Niskanen <sampo.niskanen@iki.fi>
  25  */
  26 public class MotorDatabaseLoadingDialog extends JDialog {
  27         private static final LogHelper log = Application.getLogger();
  28         private static final Translator trans = Application.getTranslator();
  29
  30
  31         private MotorDatabaseLoadingDialog(Window parent) {
  32                 //// Loading motors
  33                 super(parent, trans.get("MotorDbLoadDlg.title"), ModalityType.APPLICATION_MODAL);
  34
  35                 JPanel panel = new JPanel(new MigLayout("fill"));
  36                 //// Loading motors...
  37                 panel.add(new JLabel(trans.get("MotorDbLoadDlg.Loadingmotors")), "wrap para");
  38
  39                 JProgressBar progress = new JProgressBar();
  40                 progress.setIndeterminate(true);
  41                 panel.add(progress, "growx");
  42
  43                 this.add(panel);
  44                 this.pack();
  45                 this.setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
  46                 this.setLocationByPlatform(true);
  47                 GUIUtil.setWindowIcons(this);
  48         }
  49
  50
  51         /**
  52          * Check whether the motor database is loaded and block until it is.
  53          * An uncloseable modal dialog window is opened while loading unless the splash screen
  54          * is still being displayed.
  55          *
  56          * @param parent        the parent window for the dialog, or <code>null</code>
  57          */
  58         public static void check(Window parent) {
  59                 final ThrustCurveMotorSetDatabase db = Application.getMotorSetDatabase();
  60                 if (db.isLoaded())
  61                         return;
  62
  63                 if (SplashScreen.getSplashScreen() == null) {
  64
  65                         log.info(1, "Motor database not loaded yet, displaying dialog");
  66
  67                         final MotorDatabaseLoadingDialog dialog = new MotorDatabaseLoadingDialog(parent);
  68
  69                         final Timer timer = new Timer(100, new ActionListener() {
  70                                 private int count = 0;
  71
  72                                 @Override
  73                                 public void actionPerformed(ActionEvent e) {
  74                                         count++;
  75                                         if (db.isLoaded()) {
  76                                                 log.debug("Database loaded, closing dialog");
  77                                                 dialog.setVisible(false);
  78                                         } else if (count % 10 == 0) {
  79                                                 log.debug("Database not loaded, count=" + count);
  80                                         }
  81                                 }
  82                         });
  83
  84                         db.setInUse();
  85                         timer.start();
  86                         dialog.setVisible(true);
  87                         timer.stop();
  88
  89                 } else {
  90
  91                         log.info(1, "Motor database not loaded yet, splash screen still present, delaying until loaded");
  92
  93                         db.setInUse();
  94                         int count = 0;
  95                         while (!db.isLoaded()) {
  96                                 try {
  97                                         Thread.sleep(100);
  98                                 } catch (InterruptedException e) {
  99                                         // No-op
 100                                 }
 101
 102                                 count++;
 103                                 if (count % 10 == 0) {
 104                                         log.debug("Database not loaded, count=" + count);
 105                                 }
 106                         }
 107
 108                 }
 109
 110                 log.info("Motor database now loaded");
 111         }
 112
 113 }