introduction tour

[debian/openrocket] / src / net / sf / openrocket / gui / help / tours / SlideSetManager.java

diff --git a/src/net/sf/openrocket/gui/help/tours/SlideSetManager.java b/src/net/sf/openrocket/gui/help/tours/SlideSetManager.java
index abf5e74b888dcdd24e70aeb57988a31cfaccfd22..0d9e38155cc830dffdf2210b9d046d8827c77c71 100644 (file)
--- a/src/net/sf/openrocket/gui/help/tours/SlideSetManager.java
+++ b/src/net/sf/openrocket/gui/help/tours/SlideSetManager.java
@@ -11,6 +11,8 @@ import java.util.Map;
 
 import javax.swing.text.html.StyleSheet;
 
+import net.sf.openrocket.util.BugException;
+
 /**
  * A manager that loads a number of slide sets from a defined base directory
  * and provides access to them.
@@ -18,11 +20,14 @@ import javax.swing.text.html.StyleSheet;
  * @author Sampo Niskanen <sampo.niskanen@iki.fi>
  */
 public class SlideSetManager {
+       private static final String TOURS_BASE_DIR = "datafiles/tours";
        
        private static final String TOURS_FILE = "tours.txt";
        private static final String STYLESHEET_FILE = "style.css";
        
-
+       private static SlideSetManager slideSetManager = null;
+       
+       
        private final String baseDir;
        private final Map<String, SlideSet> slideSets = new LinkedHashMap<String, SlideSet>();
        
@@ -49,20 +54,24 @@ public class SlideSetManager {
                List<String> tours = loadTourList();
                StyleSheet styleSheet = loadStyleSheet();
                
-               for (String file : tours) {
+               for (String fileAndDir : tours) {
+                       String base;
+                       String file;
                        
-                       String base = baseDir + file;
-                       int index = base.lastIndexOf('/');
+                       String fullFileAndDir = baseDir + fileAndDir;
+                       int index = fullFileAndDir.lastIndexOf('/');
                        if (index >= 0) {
-                               base = base.substring(0, index);
+                               base = fullFileAndDir.substring(0, index);
+                               file = fullFileAndDir.substring(index + 1);
                        } else {
                                base = "";
+                               file = "";
                        }
                        
                        SlideSetLoader loader = new SlideSetLoader(base);
                        SlideSet set = loader.load(file);
                        set.setStyleSheet(styleSheet);
-                       slideSets.put(file, set);
+                       slideSets.put(fileAndDir, set);
                }
                
        }
@@ -131,4 +140,26 @@ public class SlideSetManager {
                
        }
        
+       
+       
+       /**
+        * Return a singleton implementation that has loaded the default tours.
+        */
+       public static SlideSetManager getSlideSetManager() {
+               if (slideSetManager == null) {
+                       try {
+                               SlideSetManager ssm = new SlideSetManager(TOURS_BASE_DIR);
+                               ssm.load();
+                               
+                               if (ssm.getSlideSetNames().isEmpty()) {
+                                       throw new FileNotFoundException("No tours found.");
+                               }
+                               
+                               slideSetManager = ssm;
+                       } catch (IOException e) {
+                               throw new BugException(e);
+                       }
+               }
+               return slideSetManager;
+       }
 }