Changeset 2433 for branches/Mainform refactoring/HeuristicLab.MainForm/3.2

Timestamp:

10/15/09 14:01:15 (15 years ago)

Author:

mkommend

Message:

first version of generic views (ticket #771)

Location:

branches/Mainform refactoring/HeuristicLab.MainForm/3.2

Files:

• DefaultView.cs (added)
• HeuristicLab.MainForm-3.2.csproj (modified) (1 diff)
• Interfaces/IView.cs (modified) (1 diff)
• MainFormManager.cs (modified) (1 diff)

branches/Mainform refactoring/HeuristicLab.MainForm/3.2/HeuristicLab.MainForm-3.2.csproj

@@ -92 +92 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="UserInterfaceItemBase.cs" />
+    <Compile Include="DefaultView.cs" />
   </ItemGroup>
   <ItemGroup>

branches/Mainform refactoring/HeuristicLab.MainForm/3.2/Interfaces/IView.cs

@@ -33 +33 @@
     void OnClosed(object sender, EventArgs e);
   }
+
+  public interface IView<T> : IView {
+    void View(T item);
+  }
 }

branches/Mainform refactoring/HeuristicLab.MainForm/3.2/MainFormManager.cs

@@ -1 @@
-using System;
+#region License Information
+/* HeuristicLab
+ * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
+ *
+ * This file is part of HeuristicLab.
+ *
+ * HeuristicLab is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * HeuristicLab is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
+ */
+#endregion
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using HeuristicLab.PluginInfrastructure;
 
 namespace HeuristicLab.MainForm {
-  public class MainFormManager {
-    private MainFormManager() {
-      MainFormManager.mainform = null;
+  public static class MainFormManager {
+    private static object locker;
+    private static IMainForm mainform;
+    private static Dictionary<Type, List<Type>> views;
+    private static Dictionary<Type, Type> defaultViews;
+
+    static MainFormManager() {
+      locker = new object();
+      views = new Dictionary<Type, List<Type>>();
+      defaultViews = new Dictionary<Type, Type>();
     }
 
-    private static IMainForm mainform;
     public static void RegisterMainForm(IMainForm mainform) {
-      if (MainFormManager.mainform == null)
-        MainFormManager.mainform = mainform;
-      else
-        throw new ArgumentException("A mainform was already associated with the mainform manager.");
+      lock (locker) {
+        if (MainFormManager.mainform == null) {
+          MainFormManager.mainform = mainform;
+
+          DiscoveryService ds = new DiscoveryService();
+          Type[] types = ds.GetTypes(typeof(IView));
+
+          foreach (Type t in types.Where(t => !t.IsAbstract && !t.IsInterface && !t.IsGenericType)) {
+            foreach (Type viewableType in GetViewableType(t)) {
+              if (viewableType != null) {
+                if (!views.ContainsKey(viewableType))
+                  views[viewableType] = new List<Type>();
+                views[viewableType].Add(t);
+
+                object[] attributes = t.GetCustomAttributes(typeof(DefaultView), false);
+                if (attributes != null && attributes.Length == 1) {
+                  if (defaultViews.ContainsKey(viewableType))
+                    throw new ArgumentException("DefaultView for type " + viewableType + " is " + defaultViews[viewableType] +
+                      ". Can't register additional DefaultView " + t + ".");
+                  defaultViews[viewableType] = t;
+                }
+              }
+            }
+          }
+        } else
+          throw new ArgumentException("A mainform was already associated with the mainform manager.");
+      }
     }
 
-    public static IMainForm Instance {
+    private static IEnumerable<Type> GetViewableType(Type t) {
+      foreach (Type interfaceType in t.GetInterfaces().Where(i => i.Namespace == "HeuristicLab.MainForm" && i.Name.StartsWith("IView"))) {
+        if (interfaceType.IsGenericType && !interfaceType.IsGenericTypeDefinition)
+          yield return interfaceType.GetGenericArguments()[0];
+      }
+    }
+
+    public static IMainForm MainForm {
       get { return mainform; }
     }
 
-    public static T GetInstance<T>() where T : IMainForm {
+    public static T GetMainForm<T>() where T : IMainForm {
       return (T)mainform;
+    }
+
+    public static IEnumerable<Type> GetViewTypes(Type viewableType) {
+      List<Type> viewsForType;
+      if (!views.ContainsKey(viewableType))
+        viewsForType = new List<Type>();
+      else
+        viewsForType = views[viewableType];
+
+      if (viewableType.BaseType != null)
+        viewsForType.AddRange(GetViewTypes(viewableType.BaseType));
+      return viewsForType.Distinct();
+    }
+
+    public static bool ViewCanViewObject(IView view, object o) {
+      return GetViewTypes(o.GetType()).Contains(view.GetType());
+    }
+
+    public static Type GetDefaultViewType(Type viewableType) {
+      if (!defaultViews.ContainsKey(viewableType))
+        return null;
+      return defaultViews[viewableType];
+    }
+
+    public static IView<T> CreateDefaultView<T>(T objectToView) {
+      Type t = GetDefaultViewType(objectToView.GetType());
+      if (t == null)
+        return null;
+      else
+        return (IView<T>) Activator.CreateInstance(t);
     }
   }