svn commit: r13250 - trunk/src_new/org/argouml: application/api uml/ui

Author: mvw
Date: 2007-08-05 14:36:16-0700
New Revision: 13250

Added:
   trunk/src_new/org/argouml/application/api/Predicate.java
Modified:
   trunk/src_new/org/argouml/uml/ui/TabSrc.java

Log:
Fix for issue 4824: Allow modules to implement generated source code to be shown in the standard SrcTab.

Added: trunk/src_new/org/argouml/application/api/Predicate.java
Url: http://argouml.tigris.org/source/browse/argouml/trunk/src_new/org/argouml/application/api/Predicate.java?view=auto&rev=13250
==============================================================================
--- (empty file)
+++ trunk/src_new/org/argouml/application/api/Predicate.java	2007-08-05 14:36:16-0700
@@ -0,0 +1,35 @@
+// $Id: eclipse-argo-codetemplates.xml 11347 2006-10-26 22:37:44Z linus $
+// Copyright (c) 2007 The Regents of the University of California. All
+// Rights Reserved. Permission to use, copy, modify, and distribute this
+// software and its documentation without fee, and without a written
+// agreement is hereby granted, provided that the above copyright notice
+// and this paragraph appear in all copies. This software program and
+// documentation are copyrighted by The Regents of the University of
+// California. The software program and documentation are supplied "AS
+// IS", without any accompanying services from The Regents. The Regents
+// does not warrant that the operation of the program will be
+// uninterrupted or error-free. The end-user understands that the program
+// was developed for research purposes and is advised not to rely
+// exclusively on the program for any reason. IN NO EVENT SHALL THE
+// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
+// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
+// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY
+// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
+// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
+// CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,
+// UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+package org.argouml.application.api;
+
+/**
+ * Defines a functor interface implemented by 
+ * classes that perform a predicate.
+ * 
+ * @author michiel
+ */
+public interface Predicate {
+    public boolean evaluate(Object object);
+}

Modified: trunk/src_new/org/argouml/uml/ui/TabSrc.java
Url: http://argouml.tigris.org/source/browse/argouml/trunk/src_new/org/argouml/uml/ui/TabSrc.java?view=diff&rev=13250&p1=trunk/src_new/org/argouml/uml/ui/TabSrc.java&p2=trunk/src_new/org/argouml/uml/ui/TabSrc.java&r1=13249&r2=13250
==============================================================================
--- trunk/src_new/org/argouml/uml/ui/TabSrc.java	(original)
+++ trunk/src_new/org/argouml/uml/ui/TabSrc.java	2007-08-05 14:36:16-0700
@@ -26,11 +26,14 @@
 
 import java.awt.event.ItemEvent;
 import java.awt.event.ItemListener;
+import java.util.ArrayList;
 import java.util.Collection;
+import java.util.List;
 
 import javax.swing.JComboBox;
 
 import org.apache.log4j.Logger;
+import org.argouml.application.api.Predicate;
 import org.argouml.language.ui.LanguageComboBox;
 import org.argouml.model.Model;
 import org.argouml.ui.TabText;
@@ -43,7 +46,7 @@
 
 /**
  * Details panel tabbed panel for displaying a source code representation of
- * a UML model element in a particular Notation.
+ * a UML model element in a particular Language.
  */
 public class TabSrc
     extends TabText
@@ -59,16 +62,28 @@
 
     private LanguageComboBox cbLang = new LanguageComboBox();
     private JComboBox cbFiles = new JComboBox();
+    
+    /**
+     * This predicate determines if this tab is enabled.
+     */
+    private static List<Predicate> predicates;
 
     ////////////////////////////////////////////////////////////////
     // constructor
 
     /**
      * Create a tab that contains a toolbar.
-     * Then add a notation selector onto it.
+     * Then add a language selector onto it.
      */
     public TabSrc() {
         super("tab.source", true);
+        if (predicates == null) {
+            predicates = new ArrayList<Predicate>();
+            /* Add a predicate for ArgoUML's
+             * default capabilities: */
+            predicates.add(new DefaultPredicate());
+        }
+
         setEditable(false);
         langName = (Language) cbLang.getSelectedItem();
         fileName = null;
@@ -162,8 +177,10 @@
         target = (target instanceof Fig) ? ((Fig) target).getOwner() : target;
 
         setShouldBeEnabled(false);
-        if (Model.getFacade().isAClassifier(target)) {
-            setShouldBeEnabled(true);
+        for (Predicate p : predicates) {
+            if (p.evaluate(target)) {
+                setShouldBeEnabled(true);
+            }
         }
 
         return shouldBeEnabled();
@@ -199,5 +216,23 @@
         setTarget(getTarget());
     }
 
-
+    /**
+     * This function allows extra predicates to be added.
+     * The predicates are conditions for cases where the 
+     * TabSrc should show source code. If a plugin module 
+     * is able to generate code for certain objects, for
+     * which ArgoUML itself does not generate code, then
+     * this function will allow the module to show the tab.
+     *  
+     * @param predicate
+     */
+    public static void addPredicate(Predicate predicate) {
+        predicates.add(predicate);
+    }
+
+    class DefaultPredicate implements Predicate{
+        public boolean evaluate(Object object) {
+            return (Model.getFacade().isAClassifier(object));
+        }
+    }
 } /* end class TabSrc */