ini/trakem2/display/DisplayableChooser.java

   1 /**
   2
   3 TrakEM2 plugin for ImageJ(C).
   4 Copyright (C) 2005-2009 Albert Cardona and Rodney Douglas.
   5
   6 This program is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU General Public License
   8 as published by the Free Software Foundation (http://www.gnu.org/licenses/gpl.txt )
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 You may contact Albert Cardona at acardona at ini.phys.ethz.ch
  20 Institute of Neuroinformatics, University of Zurich / ETH, Switzerland.
  21 **/
  22
  23 package ini.trakem2.display;
  24
  25
  26
  27 import java.awt.event.ActionEvent;
  28 import java.awt.event.ActionListener;
  29 import java.util.ArrayList;
  30 import java.util.Iterator;
  31 import java.util.Collection;
  32
  33 /** A class to be used when a click to select Displayable objects on the Display detects that there are more than one under the mouse cursor.
  34  *
  35  *
  36  */
  37 public final class DisplayableChooser implements ActionListener {
  38
  39         protected Collection al_under;
  40         protected boolean waiting = true;
  41         protected Displayable chosen = null;
  42         private Object lock;
  43
  44         public DisplayableChooser(Collection al_under, Object lock) {
  45                 this.al_under = al_under;
  46                 this.lock = lock;
  47         }
  48
  49         public void actionPerformed(final ActionEvent ae) {
  50                 String command = ae.getActionCommand();
  51                 //find the object that has the command as title
  52                 final Iterator it = al_under.iterator();
  53                 while (it.hasNext()) {
  54                         final Displayable d = (Displayable)it.next();
  55                         if (d.toString().equals(command)) {
  56                                 chosen = d;
  57                                 break;
  58                         }
  59                 }
  60                 //no more waiting!
  61                 synchronized(this.lock) {
  62                         this.lock.notifyAll();
  63                         waiting = false;
  64                 }
  65         }
  66
  67         public boolean isWaiting() {
  68                 return this.waiting;
  69         }
  70
  71         public Displayable getChosen() {
  72                 return this.chosen;
  73         }
  74 }