git.gag.com Git - debian/openrocket/blob - core/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.gui.util.GUIUtil;
  17 import net.sf.openrocket.l10n.Translator;
  18 import net.sf.openrocket.logging.LogHelper;
  19 import net.sf.openrocket.startup.Application;
  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                 // TODO - ugly blind cast
  60                 final ThrustCurveMotorSetDatabase db = (ThrustCurveMotorSetDatabase) Application.getMotorSetDatabase();
  61                 if (db.isLoaded())
  62                         return;
  63
  64                 if (SplashScreen.getSplashScreen() == null) {
  65
  66                         log.info(1, "Motor database not loaded yet, displaying dialog");
  67
  68                         final MotorDatabaseLoadingDialog dialog = new MotorDatabaseLoadingDialog(parent);
  69
  70                         final Timer timer = new Timer(100, new ActionListener() {
  71                                 private int count = 0;
  72
  73                                 @Override
  74                                 public void actionPerformed(ActionEvent e) {
  75                                         count++;
  76                                         if (db.isLoaded()) {
  77                                                 log.debug("Database loaded, closing dialog");
  78                                                 dialog.setVisible(false);
  79                                         } else if (count % 10 == 0) {
  80                                                 log.debug("Database not loaded, count=" + count);
  81                                         }
  82                                 }
  83                         });
  84
  85                         db.setInUse();
  86                         timer.start();
  87                         dialog.setVisible(true);
  88                         timer.stop();
  89
  90                 } else {
  91
  92                         log.info(1, "Motor database not loaded yet, splash screen still present, delaying until loaded");
  93
  94                         db.setInUse();
  95                         int count = 0;
  96                         while (!db.isLoaded()) {
  97                                 try {
  98                                         Thread.sleep(100);
  99                                 } catch (InterruptedException e) {
 100                                         // No-op
 101                                 }
 102
 103                                 count++;
 104                                 if (count % 10 == 0) {
 105                                         log.debug("Database not loaded, count=" + count);
 106                                 }
 107                         }
 108
 109                 }
 110
 111                 log.info("Motor database now loaded");
 112         }
 113
 114 }