2007-08-28 Jonathan Pobst <monkey@jpobst.com>

[mono.git] / mcs / class / Managed.Windows.Forms / System.Windows.Forms / ListViewGroupCollection.cs

diff --git a/mcs/class/Managed.Windows.Forms/System.Windows.Forms/ListViewGroupCollection.cs b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/ListViewGroupCollection.cs
index 7dd31ac4242a03f425839923ff89c23ae6ecf918..136a8a48e17469e92504dac01e2a98dd9090ee97 100644 (file)
--- a/mcs/class/Managed.Windows.Forms/System.Windows.Forms/ListViewGroupCollection.cs
+++ b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/ListViewGroupCollection.cs
@@ -41,15 +41,20 @@ namespace System.Windows.Forms
        {
                private List<ListViewGroup> list = null;
                private ListView list_view_owner = null;
+               private ListViewGroup default_group;
 
                ListViewGroupCollection()
                {
                        list = new List<ListViewGroup> ();
+
+                       default_group = new ListViewGroup ("Default Group");
+                       default_group.IsDefault = true;
                }
 
                internal ListViewGroupCollection(ListView listViewOwner) : this()
                {
                        list_view_owner = listViewOwner;
+                       default_group.ListViewOwner = listViewOwner;
                }
 
                internal ListView ListViewOwner {
@@ -102,9 +107,7 @@ namespace System.Windows.Forms
                        if (Contains(value))
                                return -1;
 
-                       CheckListViewItemsInGroup(value);
-                       value.ListViewOwner = this.list_view_owner;
-                       list.Add (value);
+                       AddGroup (value);
 
                        if (this.list_view_owner != null)
                                list_view_owner.Redraw(true);
@@ -228,55 +231,95 @@ namespace System.Windows.Forms
                                if (list.Count <= index || index < 0)
                                        throw new ArgumentOutOfRangeException("index");
 
-                               if (!Contains(value)) {
-                                       CheckListViewItemsInGroup(value);
-                                       list[index] = value;
-                    
-                                       if (list_view_owner != null)
-                                               list_view_owner.Redraw(true);
-                               }
+                               if (Contains (value))
+                                       return;
+
+                               if (value != null)
+                                       CheckListViewItemsInGroup (value);
+
+                               list [index] = value;
+                                       
+                               if (list_view_owner != null)
+                                       list_view_owner.Redraw(true);
                        }
                }
 
-               public ListViewGroup this[string key] {
+               public ListViewGroup this [string key] {
                        get {
-                               foreach (ListViewGroup item in list)
-                               {
-                                       if (item.Name.Equals(key))
-                                               return item;
-                               }
+                               int idx = IndexOfKey (key);
+                               if (idx != -1)
+                                       return this [idx];
 
                                return null;
                        }
                        set {
-                               for(int i = 0; i < list.Count; i++)
-                               {
-                                       if ((this[i].Name != null) && (this[i].Name.Equals(key))) {
-                                               this[i] = value;
-                                               break;
-                                       }
-                               }
+                               int idx = IndexOfKey (key);
+                               if (idx == -1)
+                                       return;
+
+                               this [idx] = value;
                        }
                }
 
+               int IndexOfKey (string key)
+               {
+                       for (int i = 0; i < list.Count; i++)
+                               if (list [i].Name == key)
+                                       return i;
+
+                       return -1;
+               }
+
                #endregion
 
                public void AddRange(ListViewGroup[] groups)
                {
-                       foreach (ListViewGroup item in groups)
-                       {
-                               Add(item);
-                       }
+                       foreach (ListViewGroup group in groups)
+                               AddGroup (group);
+
+                       if (list_view_owner != null)
+                               list_view_owner.Redraw (true);
                }
 
                public void AddRange(ListViewGroupCollection groups)
                {
-                       foreach (ListViewGroup item in groups)
-                       {
-                               Add(item);
+                       foreach (ListViewGroup group in groups)
+                               AddGroup (group);
+
+                       if (list_view_owner != null)
+                               list_view_owner.Redraw (true);
+               }
+
+               internal ListViewGroup GetInternalGroup (int index) 
+               {
+                       if (index == 0)
+                               return default_group;
+
+                       return list [index - 1];
+               }
+
+               internal int InternalCount {
+                       get {
+                               return list.Count + 1;
                        }
                }
 
+               internal ListViewGroup DefaultGroup {
+                       get {
+                               return default_group;
+                       }
+               }
+
+               void AddGroup (ListViewGroup group)
+               {
+                       if (Contains (group))
+                               return;
+
+                       CheckListViewItemsInGroup (group);
+                       group.ListViewOwner = list_view_owner;
+                       list.Add (group);
+               }
+
                private void CheckListViewItemsInGroup(ListViewGroup value)
                {
                        //check for correct ListView