Fixed docking groups

Groups were being kept on scope because they weren't being removed from
the region's control array.

DarkUI/DarkUI.csproj

@@ -106,6 +106,7 @@
     <Compile Include="Docking\DarkToolWindow.cs">
       <SubType>UserControl</SubType>
     </Compile>
+    <Compile Include="Docking\Items\DarkDockSplitter.cs" />
     <Compile Include="Extensions\BitmapExtensions.cs" />
     <Compile Include="Forms\DarkDialog.cs">
       <SubType>Form</SubType>

DarkUI/Docking/DarkDockRegion.cs

@@ -72,13 +72,10 @@ namespace DarkUI
 
             // If that was the final content in the group then remove the group
             if (group.ContentCount == 0)
-            {
+                RemoveGroup(group);
-                _groups.Remove(group);
-                PositionGroups();
-            }
 
-            // Check if we have any groups left. If not then hide the region
+            // If we just removed the final group, and this isn't the document region, then hide
-            if (_groups.Count == 0)
+            if (_groups.Count == 0 && DockArea != DarkDockArea.Document)
                 Visible = false;
         }
 
@@ -93,6 +90,14 @@ namespace DarkUI
             return newGroup;
         }
 
+        private void RemoveGroup(DarkDockGroup group)
+        {
+            _groups.Remove(group);
+            Controls.Remove(group);
+
+            PositionGroups();
+        }
+
         private void PositionGroups()
         {
             DockStyle dockStyle;

DarkUI/Docking/Items/DarkDockSplitter.cs

@@ -0,0 +1,6 @@
+namespace DarkUI
+{
+    public class DarkDockSplitter
+    {
+    }
+}

Example/Forms/Docking/DockConsole.Designer.cs

@@ -28,12 +28,24 @@
         /// </summary>
         private void InitializeComponent()
         {
+            this.lstConsole = new DarkUI.DarkListView();
             this.SuspendLayout();
             // 
+            // lstConsole
+            // 
+            this.lstConsole.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.lstConsole.Location = new System.Drawing.Point(0, 25);
+            this.lstConsole.MultiSelect = true;
+            this.lstConsole.Name = "lstConsole";
+            this.lstConsole.Size = new System.Drawing.Size(500, 175);
+            this.lstConsole.TabIndex = 0;
+            this.lstConsole.Text = "darkListView1";
+            // 
             // DockConsole
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.Controls.Add(this.lstConsole);
             this.DockArea = DarkUI.DarkDockArea.Bottom;
             this.DockText = "Console";
             this.Font = new System.Drawing.Font("Segoe UI", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
@@ -45,5 +57,7 @@
         }
 
         #endregion
+
+        private DarkUI.DarkListView lstConsole;
     }
 }

Example/Forms/Docking/DockConsole.cs

@@ -9,6 +9,13 @@ namespace Example
         public DockConsole()
         {
             InitializeComponent();
+
+            // Build dummy list data
+            for (var i = 0; i < 100; i++)
+            {
+                var item = new DarkListItem(string.Format("List item #{0}", i));
+                lstConsole.Items.Add(item);
+            }
         }
 
         #endregion

Example/Forms/Docking/DockProject.Designer.cs

@@ -28,12 +28,26 @@
         /// </summary>
         private void InitializeComponent()
         {
+            this.treeProject = new DarkUI.DarkTreeView();
             this.SuspendLayout();
             // 
+            // treeProject
+            // 
+            this.treeProject.AllowMoveNodes = true;
+            this.treeProject.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.treeProject.Location = new System.Drawing.Point(0, 25);
+            this.treeProject.MultiSelect = true;
+            this.treeProject.Name = "treeProject";
+            this.treeProject.ShowIcons = true;
+            this.treeProject.Size = new System.Drawing.Size(280, 425);
+            this.treeProject.TabIndex = 0;
+            this.treeProject.Text = "darkTreeView1";
+            // 
             // DockProject
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.Controls.Add(this.treeProject);
             this.DockArea = DarkUI.DarkDockArea.Left;
             this.DockText = "Project Explorer";
             this.Font = new System.Drawing.Font("Segoe UI", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
@@ -45,5 +59,7 @@
         }
 
         #endregion
+
+        private DarkUI.DarkTreeView treeProject;
     }
 }

Example/Forms/Docking/DockProject.cs

@@ -9,6 +9,25 @@ namespace Example
         public DockProject()
         {
             InitializeComponent();
+
+            // Build dummy nodes
+            var childCount = 0;
+            for (var i = 0; i < 20; i++)
+            {
+                var node = new DarkTreeNode(string.Format("Root node #{0}", i));
+                node.ExpandedIcon = Icons.folder_open;
+                node.Icon = Icons.folder_closed;
+
+                for (var x = 0; x < 10; x++)
+                {
+                    var childNode = new DarkTreeNode(string.Format("Child node #{0}", childCount));
+                    childNode.Icon = Icons.files;
+                    childCount++;
+                    node.Nodes.Add(childNode);
+                }
+
+                treeProject.Nodes.Add(node);
+            }
         }
 
         #endregion

Example/Forms/Docking/DockProperties.Designer.cs

@@ -34,7 +34,7 @@
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.DockArea = DarkUI.DarkDockArea.Right;
+            this.DockArea = DarkUI.DarkDockArea.Left;
             this.DockText = "Properties";
             this.Font = new System.Drawing.Font("Segoe UI", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
             this.Icon = global::Example.Icons.properties_16xLG;