updates

[debian/openrocket] / src / net / sf / openrocket / document / OpenRocketDocument.java

diff --git a/src/net/sf/openrocket/document/OpenRocketDocument.java b/src/net/sf/openrocket/document/OpenRocketDocument.java
index ae6c886c833c081c7cbbb3fa22de321bbadea171..24c144cdfb755ad4ec791541689eecfa2ec34cdb 100644 (file)
--- a/src/net/sf/openrocket/document/OpenRocketDocument.java
+++ b/src/net/sf/openrocket/document/OpenRocketDocument.java
@@ -10,6 +10,9 @@ import java.util.List;
 import javax.swing.AbstractAction;
 import javax.swing.Action;
 
+import net.sf.openrocket.document.events.DocumentChangeEvent;
+import net.sf.openrocket.document.events.DocumentChangeListener;
+import net.sf.openrocket.document.events.SimulationChangeEvent;
 import net.sf.openrocket.rocketcomponent.ComponentChangeEvent;
 import net.sf.openrocket.rocketcomponent.ComponentChangeListener;
 import net.sf.openrocket.rocketcomponent.Configuration;
@@ -29,6 +32,8 @@ public class OpenRocketDocument implements ComponentChangeListener {
        public static final int UNDO_MARGIN = 10;
 
        
+       public static final String SIMULATION_NAME_PREFIX = "Simulation ";
+       
        private final Rocket rocket;
        private final Configuration configuration;
 
@@ -48,6 +53,9 @@ public class OpenRocketDocument implements ComponentChangeListener {
        private final StorageOptions storageOptions = new StorageOptions();
        
        
+       private final List<DocumentChangeListener> listeners = 
+               new ArrayList<DocumentChangeListener>();
+       
        /* These must be initialized after undo history is set up. */
        private final UndoRedoAction undoAction;
        private final UndoRedoAction redoAction;
@@ -70,8 +78,6 @@ public class OpenRocketDocument implements ComponentChangeListener {
                redoAction = new UndoRedoAction(UndoRedoAction.REDO);
                
                rocket.addComponentChangeListener(this);
-               
-               
        }
        
        
@@ -135,17 +141,43 @@ public class OpenRocketDocument implements ComponentChangeListener {
        }
        public void addSimulation(Simulation simulation) {
                simulations.add(simulation);
+               fireDocumentChangeEvent(new SimulationChangeEvent(simulation));
        }
        public void addSimulation(Simulation simulation, int n) {
                simulations.add(n, simulation);
+               fireDocumentChangeEvent(new SimulationChangeEvent(simulation));
        }
        public void removeSimulation(Simulation simulation) {
                simulations.remove(simulation);
+               fireDocumentChangeEvent(new SimulationChangeEvent(simulation));
        }
        public Simulation removeSimulation(int n) {
-               return simulations.remove(n);
+               Simulation simulation = simulations.remove(n);
+               fireDocumentChangeEvent(new SimulationChangeEvent(simulation));
+               return simulation;
        }
        
+       /**
+        * Return a unique name suitable for the next simulation.  The name begins
+        * with {@link #SIMULATION_NAME_PREFIX} and has a unique number larger than any
+        * previous simulation.
+        * 
+        * @return      the new name.
+        */
+       public String getNextSimulationName() {
+               // Generate unique name for the simulation
+               int maxValue = 0;
+               for (Simulation s: simulations) {
+                       String name = s.getName();
+                       if (name.startsWith(SIMULATION_NAME_PREFIX)) {
+                               try {
+                                       maxValue = Math.max(maxValue, 
+                                                       Integer.parseInt(name.substring(SIMULATION_NAME_PREFIX.length())));
+                               } catch (NumberFormatException ignore) { }
+                       }
+               }
+               return SIMULATION_NAME_PREFIX + (maxValue+1);
+       }
        
        
        /**
@@ -301,6 +333,24 @@ public class OpenRocketDocument implements ComponentChangeListener {
        
        
        
+       ///////  Listeners
+       
+       public void addDocumentChangeListener(DocumentChangeListener listener) {
+               listeners.add(listener);
+       }
+       
+       public void removeDocumentChangeListener(DocumentChangeListener listener) {
+               listeners.remove(listener);
+       }
+       
+       protected void fireDocumentChangeEvent(DocumentChangeEvent event) {
+               DocumentChangeListener[] array = listeners.toArray(new DocumentChangeListener[0]);
+               for (DocumentChangeListener l: array) {
+                       l.documentChanged(event);
+               }
+       }
+       
+       
        
        
        /**