src/be/nikiroo/utils/ui/ProgressBar.java

   1 package be.nikiroo.utils.ui;
   2
   3 import java.awt.GridLayout;
   4 import java.awt.event.ActionEvent;
   5 import java.awt.event.ActionListener;
   6 import java.util.ArrayList;
   7 import java.util.HashMap;
   8 import java.util.List;
   9 import java.util.Map;
  10
  11 import javax.swing.JPanel;
  12 import javax.swing.JProgressBar;
  13 import javax.swing.SwingUtilities;
  14
  15 import be.nikiroo.utils.Progress;
  16
  17 /**
  18  * A graphical control to show the progress of a {@link Progress}.
  19  * <p>
  20  * This control is <b>NOT</b> thread-safe.
  21  *
  22  * @author niki
  23  */
  24 public class ProgressBar extends JPanel {
  25         private static final long serialVersionUID = 1L;
  26
  27         private Map<Progress, JProgressBar> bars;
  28         private List<ActionListener> actionListeners;
  29         private List<ActionListener> updateListeners;
  30         private Progress pg;
  31         private Object lock = new Object();
  32
  33         public ProgressBar() {
  34                 bars = new HashMap<Progress, JProgressBar>();
  35                 actionListeners = new ArrayList<ActionListener>();
  36                 updateListeners = new ArrayList<ActionListener>();
  37         }
  38
  39         public void setProgress(final Progress pg) {
  40                 this.pg = pg;
  41
  42                 SwingUtilities.invokeLater(new Runnable() {
  43                         @Override
  44                         public void run() {
  45                                 if (pg != null) {
  46                                         final JProgressBar bar = new JProgressBar();
  47                                         bar.setStringPainted(true);
  48
  49                                         bars.clear();
  50                                         bars.put(pg, bar);
  51
  52                                         bar.setMinimum(pg.getMin());
  53                                         bar.setMaximum(pg.getMax());
  54                                         bar.setValue(pg.getProgress());
  55                                         bar.setString(pg.getName());
  56
  57                                         pg.addProgressListener(new Progress.ProgressListener() {
  58                                                 @Override
  59                                                 public void progress(Progress progress, String name) {
  60                                                         final Progress.ProgressListener l = this;
  61                                                         SwingUtilities.invokeLater(new Runnable() {
  62                                                                 @Override
  63                                                                 public void run() {
  64                                                                         Map<Progress, JProgressBar> newBars = new HashMap<Progress, JProgressBar>();
  65                                                                         newBars.put(pg, bar);
  66
  67                                                                         bar.setMinimum(pg.getMin());
  68                                                                         bar.setMaximum(pg.getMax());
  69                                                                         bar.setValue(pg.getProgress());
  70                                                                         bar.setString(pg.getName());
  71
  72                                                                         synchronized (lock) {
  73                                                                         for (Progress pgChild : getChildrenAsOrderedList(pg)) {
  74                                                                                 JProgressBar barChild = bars
  75                                                                                                 .get(pgChild);
  76                                                                                 if (barChild == null) {
  77                                                                                         barChild = new JProgressBar();
  78                                                                                         barChild.setStringPainted(true);
  79                                                                                 }
  80
  81                                                                                 newBars.put(pgChild, barChild);
  82
  83                                                                                 barChild.setMinimum(pgChild.getMin());
  84                                                                                 barChild.setMaximum(pgChild.getMax());
  85                                                                                 barChild.setValue(pgChild.getProgress());
  86                                                                                 barChild.setString(pgChild.getName());
  87                                                                         }
  88
  89                                                                         if (ProgressBar.this.pg == null) {
  90                                                                                 bars.clear();
  91                                                                         } else {
  92                                                                                 bars = newBars;
  93                                                                         }
  94                                                                         }
  95
  96                                                                         if (ProgressBar.this.pg != null) {
  97                                                                                 if (pg.isDone()) {
  98                                                                                         pg.removeProgressListener(l);
  99                                                                                         for (ActionListener listener : actionListeners) {
 100                                                                                                 listener.actionPerformed(new ActionEvent(
 101                                                                                                                 ProgressBar.this, 0,
 102                                                                                                                 "done"));
 103                                                                                         }
 104                                                                                 }
 105
 106                                                                                 update();
 107                                                                         }
 108                                                                 }
 109                                                         });
 110                                                 }
 111                                         });
 112                                 }
 113
 114                                 update();
 115                         }
 116                 });
 117         }
 118
 119         public void addActionListener(ActionListener l) {
 120                 actionListeners.add(l);
 121         }
 122
 123         public void clearActionListeners() {
 124                 actionListeners.clear();
 125         }
 126
 127         public void addUpdateListener(ActionListener l) {
 128                 updateListeners.add(l);
 129         }
 130
 131         public void clearUpdateListeners() {
 132                 updateListeners.clear();
 133         }
 134
 135         public int getProgress() {
 136                 if (pg == null) {
 137                         return 0;
 138                 }
 139
 140                 return pg.getProgress();
 141         }
 142
 143         // only named ones
 144         private List<Progress> getChildrenAsOrderedList(Progress pg) {
 145                 List<Progress> children = new ArrayList<Progress>();
 146
 147                 synchronized (lock) {
 148                         for (Progress child : pg.getChildren()) {
 149                         if (child.getName() != null && !child.getName().isEmpty()) {
 150                                 children.add(child);
 151                         }
 152                         children.addAll(getChildrenAsOrderedList(child));
 153                 }
 154                 }
 155
 156                 return children;
 157         }
 158
 159         private void update() {
 160                 synchronized (lock) {
 161                         invalidate();
 162                         removeAll();
 163
 164                         if (pg != null) {
 165                                 setLayout(new GridLayout(bars.size(), 1));
 166                                 add(bars.get(pg), 0);
 167                                 for (Progress child : getChildrenAsOrderedList(pg)) {
 168                                         JProgressBar jbar = bars.get(child);
 169                                         if (jbar != null) {
 170                                                 add(jbar);
 171                                         }
 172                                 }
 173                         }
 174
 175                         validate();
 176                         repaint();
 177                 }
 178
 179                 for (ActionListener listener : updateListeners) {
 180                         listener.actionPerformed(new ActionEvent(this, 0, "update"));
 181                 }
 182         }
 183 }