From 3a409516ccaa6a1694db5ab6c4304810ebefb261 Mon Sep 17 00:00:00 2001
From: Robin <robinperris@gmail.com>
Date: Sun, 5 Mar 2017 20:43:13 +0000
Subject: [PATCH] Added dropdown control

---
 DarkUI/Controls/DarkDropdownItem.cs           |  34 ++
 DarkUI/Controls/DarkDropdownList.cs           | 489 ++++++++++++++++++
 DarkUI/DarkUI.csproj                          |  17 +
 DarkUI/Icons/DropdownIcons.Designer.cs        |  73 +++
 DarkUI/Icons/DropdownIcons.resx               | 124 +++++
 DarkUI/Renderers/DarkMenuRenderer.cs          |  20 +-
 DarkUI/Resources/small_arrow.png              | Bin 0 -> 16811 bytes
 .../Forms/Docking/DockDocument.Designer.cs    |  16 +
 Example/Forms/Docking/DockDocument.cs         |   9 +
 Example/Forms/Docking/DockLayers.Designer.cs  |  17 +-
 Example/Forms/Docking/DockLayers.cs           |   9 +-
 11 files changed, 795 insertions(+), 13 deletions(-)
 create mode 100644 DarkUI/Controls/DarkDropdownItem.cs
 create mode 100644 DarkUI/Controls/DarkDropdownList.cs
 create mode 100644 DarkUI/Icons/DropdownIcons.Designer.cs
 create mode 100644 DarkUI/Icons/DropdownIcons.resx
 create mode 100644 DarkUI/Resources/small_arrow.png

diff --git a/DarkUI/Controls/DarkDropdownItem.cs b/DarkUI/Controls/DarkDropdownItem.cs
new file mode 100644
index 0000000..e110c29
--- /dev/null
+++ b/DarkUI/Controls/DarkDropdownItem.cs
@@ -0,0 +1,34 @@
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace DarkUI.Controls
+{
+    public class DarkDropdownItem
+    {
+        #region Property Region
+
+        public string Text { get; set; }
+
+        public Bitmap Icon { get; set; }
+
+        #endregion
+
+        #region Constructor Region
+
+        public DarkDropdownItem()
+        { }
+
+        public DarkDropdownItem(string text)
+        {
+            Text = text;
+        }
+
+        public DarkDropdownItem(string text, Bitmap icon)
+            : this(text)
+        {
+            Icon = icon;
+        }
+
+        #endregion
+    }
+}
diff --git a/DarkUI/Controls/DarkDropdownList.cs b/DarkUI/Controls/DarkDropdownList.cs
new file mode 100644
index 0000000..ad43722
--- /dev/null
+++ b/DarkUI/Controls/DarkDropdownList.cs
@@ -0,0 +1,489 @@
+using DarkUI.Config;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Collections.Specialized;
+using System.ComponentModel;
+using System.Drawing;
+using System.Linq;
+using System.Windows.Forms;
+
+namespace DarkUI.Controls
+{
+    public class DarkDropdownList : Control
+    {
+        #region Event Region
+
+        public event EventHandler SelectedItemChanged;
+
+        #endregion
+
+        #region Field Region
+
+        private DarkControlState _controlState = DarkControlState.Normal;
+
+        private ObservableCollection<DarkDropdownItem> _items = new ObservableCollection<DarkDropdownItem>();
+        private DarkDropdownItem _selectedItem;
+
+        private DarkContextMenu _menu = new DarkContextMenu();
+        private bool _menuOpen = false;
+
+        private bool _showBorder = true;
+
+        private int _itemHeight = 22;
+        private int _maxHeight = 130;
+
+        private readonly int _iconSize = 16;
+
+        private ToolStripDropDownDirection _dropdownDirection = ToolStripDropDownDirection.Default;
+
+        #endregion
+
+        #region Property Region
+
+        [Browsable(false)]
+        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+        public ObservableCollection<DarkDropdownItem> Items
+        {
+            get { return _items; }
+        }
+
+        [Browsable(false)]
+        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+        public DarkDropdownItem SelectedItem
+        {
+            get { return _selectedItem; }
+            set
+            {
+                _selectedItem = value;
+                SelectedItemChanged?.Invoke(this, new EventArgs());
+            }
+        }
+
+        [Category("Appearance")]
+        [Description("Determines whether a border is drawn around the control.")]
+        [DefaultValue(true)]
+        public bool ShowBorder
+        {
+            get { return _showBorder; }
+            set
+            {
+                _showBorder = value;
+                Invalidate();
+            }
+        }
+
+        protected override Size DefaultSize
+        {
+            get { return new Size(100, 26); }
+        }
+
+        [Browsable(false)]
+        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+        public DarkControlState ControlState
+        {
+            get { return _controlState; }
+        }
+
+        [Category("Appearance")]
+        [Description("Determines the height of the individual list view items.")]
+        [DefaultValue(22)]
+        public int ItemHeight
+        {
+            get { return _itemHeight; }
+            set
+            {
+                _itemHeight = value;
+                ResizeMenu();
+            }
+        }
+
+        [Category("Appearance")]
+        [Description("Determines the maximum height of the dropdown panel.")]
+        [DefaultValue(130)]
+        public int MaxHeight
+        {
+            get { return _maxHeight; }
+            set
+            {
+                _maxHeight = value;
+                ResizeMenu();
+            }
+        }
+
+        [Category("Behavior")]
+        [Description("Determines what location the dropdown list appears.")]
+        [DefaultValue(ToolStripDropDownDirection.Default)]
+        public ToolStripDropDownDirection DropdownDirection
+        {
+            get { return _dropdownDirection; }
+            set { _dropdownDirection = value; }
+        }
+
+        #endregion
+
+        #region Constructor Region
+
+        public DarkDropdownList()
+        {
+            SetStyle(ControlStyles.OptimizedDoubleBuffer |
+                     ControlStyles.ResizeRedraw |
+                     ControlStyles.UserPaint |
+                     ControlStyles.Selectable |
+                     ControlStyles.UserMouse, true);
+
+            _menu.AutoSize = false;
+            _menu.Closed += Menu_Closed;
+
+            Items.CollectionChanged += Items_CollectionChanged;
+            SelectedItemChanged += DarkDropdownList_SelectedItemChanged;
+
+            SetControlState(DarkControlState.Normal);
+        }
+
+        #endregion
+
+        #region Method Region
+
+        private ToolStripMenuItem GetMenuItem(DarkDropdownItem item)
+        {
+            foreach (ToolStripMenuItem menuItem in _menu.Items)
+            {
+                if ((DarkDropdownItem)menuItem.Tag == item)
+                    return menuItem;
+            }
+
+            return null;
+        }
+
+        private void SetControlState(DarkControlState controlState)
+        {
+            if (_menuOpen)
+                return;
+
+            if (_controlState != controlState)
+            {
+                _controlState = controlState;
+                Invalidate();
+            }
+        }
+
+        private void ShowMenu()
+        {
+            if (_menu.Visible)
+                return;
+
+            SetControlState(DarkControlState.Pressed);
+
+            _menuOpen = true;
+
+            var pos = new Point(0, ClientRectangle.Bottom);
+
+            if (_dropdownDirection == ToolStripDropDownDirection.AboveLeft || _dropdownDirection == ToolStripDropDownDirection.AboveRight)
+                pos.Y = 0;
+
+            _menu.Show(this, pos, _dropdownDirection);
+
+            if (SelectedItem != null)
+            {
+                var selectedItem = GetMenuItem(SelectedItem);
+                selectedItem.Select();
+            }
+        }
+
+        private void ResizeMenu()
+        {
+            var width = ClientRectangle.Width;
+            var height = (_menu.Items.Count * _itemHeight) + 4;
+
+            if (height > _maxHeight)
+                height = _maxHeight;
+
+            // Dirty: Check what the autosized items are
+            foreach (ToolStripMenuItem item in _menu.Items)
+            {
+                item.AutoSize = true;
+
+                if (item.Size.Width > width)
+                    width = item.Size.Width;
+
+                item.AutoSize = false;
+            }
+
+            // Force the size
+            foreach (ToolStripMenuItem item in _menu.Items)
+                item.Size = new Size(width - 1, _itemHeight);
+
+            _menu.Size = new Size(width, height);
+        }
+
+        #endregion
+
+        #region Event Handler Region
+
+        private void Items_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
+        {
+            if (e.Action == NotifyCollectionChangedAction.Add)
+            {
+                foreach (DarkDropdownItem item in e.NewItems)
+                {
+                    var menuItem = new ToolStripMenuItem(item.Text)
+                    {
+                        Image = item.Icon,
+                        AutoSize = false,
+                        Height = _itemHeight,
+                        Font = Font,
+                        Tag = item,
+                        TextAlign = ContentAlignment.MiddleLeft
+                    };
+
+                    _menu.Items.Add(menuItem);
+                    menuItem.Click += Item_Select;
+
+                    if (SelectedItem == null)
+                        SelectedItem = item;
+                }
+            }
+
+            if (e.Action == NotifyCollectionChangedAction.Remove)
+            {
+                foreach (DarkDropdownItem item in e.OldItems)
+                {
+                    foreach (ToolStripMenuItem menuItem in _menu.Items)
+                    {
+                        if ((DarkDropdownItem)menuItem.Tag == item)
+                            _menu.Items.Remove(menuItem);
+                    }
+                }
+            }
+
+            ResizeMenu();
+        }
+
+        private void Item_Select(object sender, EventArgs e)
+        {
+            var menuItem = sender as ToolStripMenuItem;
+            if (menuItem == null)
+                return;
+
+            var dropdownItem = (DarkDropdownItem)menuItem.Tag;
+            if (_selectedItem != dropdownItem)
+                SelectedItem = dropdownItem;
+        }
+
+        private void DarkDropdownList_SelectedItemChanged(object sender, EventArgs e)
+        {
+            foreach (ToolStripMenuItem item in _menu.Items)
+            {
+                if ((DarkDropdownItem)item.Tag == SelectedItem)
+                {
+                    item.BackColor = Colors.DarkBlueBackground;
+                    item.Font = new Font(Font, FontStyle.Bold);
+                }
+                else
+                {
+                    item.BackColor = Colors.GreyBackground;
+                    item.Font = new Font(Font, FontStyle.Regular);
+                }
+            }
+
+            Invalidate();
+        }
+
+        protected override void OnResize(EventArgs e)
+        {
+            base.OnResize(e);
+
+            ResizeMenu();
+        }
+
+        protected override void OnMouseMove(MouseEventArgs e)
+        {
+            base.OnMouseMove(e);
+
+            if (e.Button == MouseButtons.Left)
+            {
+                if (ClientRectangle.Contains(e.Location))
+                    SetControlState(DarkControlState.Pressed);
+                else
+                    SetControlState(DarkControlState.Hover);
+            }
+            else
+            {
+                SetControlState(DarkControlState.Hover);
+            }
+        }
+
+        protected override void OnMouseDown(MouseEventArgs e)
+        {
+            base.OnMouseDown(e);
+
+            ShowMenu();
+        }
+
+        protected override void OnMouseUp(MouseEventArgs e)
+        {
+            base.OnMouseUp(e);
+
+            SetControlState(DarkControlState.Normal);
+        }
+
+        protected override void OnMouseLeave(EventArgs e)
+        {
+            base.OnMouseLeave(e);
+
+            SetControlState(DarkControlState.Normal);
+        }
+
+        protected override void OnMouseCaptureChanged(EventArgs e)
+        {
+            base.OnMouseCaptureChanged(e);
+
+            var location = Cursor.Position;
+
+            if (!ClientRectangle.Contains(location))
+                SetControlState(DarkControlState.Normal);
+        }
+
+        protected override void OnGotFocus(EventArgs e)
+        {
+            base.OnGotFocus(e);
+
+            Invalidate();
+        }
+
+        protected override void OnLostFocus(EventArgs e)
+        {
+            base.OnLostFocus(e);
+
+            var location = Cursor.Position;
+
+            if (!ClientRectangle.Contains(location))
+                SetControlState(DarkControlState.Normal);
+            else
+                SetControlState(DarkControlState.Hover);
+        }
+
+        protected override void OnKeyDown(KeyEventArgs e)
+        {
+            base.OnKeyDown(e);
+
+            if (e.KeyCode == Keys.Space)
+                ShowMenu();
+        }
+
+        private void Menu_Closed(object sender, ToolStripDropDownClosedEventArgs e)
+        {
+            _menuOpen = false;
+
+            if (!ClientRectangle.Contains(MousePosition))
+                SetControlState(DarkControlState.Normal);
+            else
+                SetControlState(DarkControlState.Hover);
+        }
+
+        #endregion
+
+        #region Render Region
+
+        protected override void OnPaint(PaintEventArgs e)
+        {
+            var g = e.Graphics;
+
+            // Draw background
+            using (var b = new SolidBrush(Colors.MediumBackground))
+            {
+                g.FillRectangle(b, ClientRectangle);
+            }
+
+            // Draw normal state
+            if (ControlState == DarkControlState.Normal)
+            {
+                if (ShowBorder)
+                {
+                    using (var p = new Pen(Colors.LightBorder, 1))
+                    {
+                        var modRect = new Rectangle(ClientRectangle.Left, ClientRectangle.Top, ClientRectangle.Width - 1, ClientRectangle.Height - 1);
+                        g.DrawRectangle(p, modRect);
+                    }
+                }
+            }
+
+            // Draw hover state
+            if (ControlState == DarkControlState.Hover)
+            {
+                using (var b = new SolidBrush(Colors.DarkBorder))
+                {
+                    g.FillRectangle(b, ClientRectangle);
+                }
+
+                using (var b = new SolidBrush(Colors.DarkBackground))
+                {
+                    var arrowRect = new Rectangle(ClientRectangle.Right - DropdownIcons.small_arrow.Width - 8, ClientRectangle.Top, DropdownIcons.small_arrow.Width + 8, ClientRectangle.Height);
+                    g.FillRectangle(b, arrowRect);
+                }
+
+                using (var p = new Pen(Colors.BlueSelection, 1))
+                {
+                    var modRect = new Rectangle(ClientRectangle.Left, ClientRectangle.Top, ClientRectangle.Width - 1 - DropdownIcons.small_arrow.Width - 8, ClientRectangle.Height - 1);
+                    g.DrawRectangle(p, modRect);
+                }
+            }
+
+            // Draw pressed state
+            if (ControlState == DarkControlState.Pressed)
+            {
+                using (var b = new SolidBrush(Colors.DarkBorder))
+                {
+                    g.FillRectangle(b, ClientRectangle);
+                }
+
+                using (var b = new SolidBrush(Colors.BlueSelection))
+                {
+                    var arrowRect = new Rectangle(ClientRectangle.Right - DropdownIcons.small_arrow.Width - 8, ClientRectangle.Top, DropdownIcons.small_arrow.Width + 8, ClientRectangle.Height);
+                    g.FillRectangle(b, arrowRect);
+                }
+            }
+
+            // Draw dropdown arrow
+            using (var img = DropdownIcons.small_arrow)
+            {
+                g.DrawImageUnscaled(img, ClientRectangle.Right - img.Width - 4, ClientRectangle.Top + (ClientRectangle.Height / 2) - (img.Height / 2));
+            }
+
+            // Draw selected item
+            if (SelectedItem != null)
+            {
+                // Draw Icon
+                var hasIcon = SelectedItem.Icon != null;
+
+                if (hasIcon)
+                {
+                    g.DrawImageUnscaled(SelectedItem.Icon, new Point(ClientRectangle.Left + 5, ClientRectangle.Top + (ClientRectangle.Height / 2) - (_iconSize / 2)));
+                }
+
+                // Draw Text
+                using (var b = new SolidBrush(Colors.LightText))
+                {
+                    var stringFormat = new StringFormat
+                    {
+                        Alignment = StringAlignment.Near,
+                        LineAlignment = StringAlignment.Center
+                    };
+
+                    var rect = new Rectangle(ClientRectangle.Left + 2, ClientRectangle.Top, ClientRectangle.Width - 16, ClientRectangle.Height);
+
+                    if (hasIcon)
+                    {
+                        rect.X += _iconSize + 7;
+                        rect.Width -= _iconSize + 7;
+                    }
+
+                    g.DrawString(SelectedItem.Text, Font, b, rect, stringFormat);
+                }
+            }
+        }
+
+        #endregion
+    }
+}
diff --git a/DarkUI/DarkUI.csproj b/DarkUI/DarkUI.csproj
index 6f4914b..5d274ca 100644
--- a/DarkUI/DarkUI.csproj
+++ b/DarkUI/DarkUI.csproj
@@ -50,6 +50,10 @@
     <Compile Include="Controls\DarkCheckBox.cs">
       <SubType>Component</SubType>
     </Compile>
+    <Compile Include="Controls\DarkDropdownItem.cs" />
+    <Compile Include="Controls\DarkDropdownList.cs">
+      <SubType>Component</SubType>
+    </Compile>
     <Compile Include="Controls\DarkContentAlignment.cs" />
     <Compile Include="Controls\DarkControlState.cs" />
     <Compile Include="Controls\DarkRadioButton.cs">
@@ -161,6 +165,11 @@
       <DesignTime>True</DesignTime>
       <DependentUpon>DockIcons.resx</DependentUpon>
     </Compile>
+    <Compile Include="Icons\DropdownIcons.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DesignTime>True</DesignTime>
+      <DependentUpon>DropdownIcons.resx</DependentUpon>
+    </Compile>
     <Compile Include="Icons\MenuIcons.Designer.cs">
       <AutoGen>True</AutoGen>
       <DesignTime>True</DesignTime>
@@ -202,6 +211,11 @@
       <LastGenOutput>DockIcons.Designer.cs</LastGenOutput>
       <CustomToolNamespace>DarkUI</CustomToolNamespace>
     </EmbeddedResource>
+    <EmbeddedResource Include="Icons\DropdownIcons.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>DropdownIcons.Designer.cs</LastGenOutput>
+      <CustomToolNamespace>DarkUI</CustomToolNamespace>
+    </EmbeddedResource>
     <EmbeddedResource Include="Icons\MenuIcons.resx">
       <Generator>PublicResXFileCodeGenerator</Generator>
       <LastGenOutput>MenuIcons.Designer.cs</LastGenOutput>
@@ -292,6 +306,9 @@
   <ItemGroup>
     <None Include="Resources\tw_active_close_selected.png" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="Resources\small_arrow.png" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/DarkUI/Icons/DropdownIcons.Designer.cs b/DarkUI/Icons/DropdownIcons.Designer.cs
new file mode 100644
index 0000000..d8abda8
--- /dev/null
+++ b/DarkUI/Icons/DropdownIcons.Designer.cs
@@ -0,0 +1,73 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace DarkUI {
+    using System;
+    
+    
+    /// <summary>
+    ///   A strongly-typed resource class, for looking up localized strings, etc.
+    /// </summary>
+    // This class was auto-generated by the StronglyTypedResourceBuilder
+    // class via a tool like ResGen or Visual Studio.
+    // To add or remove a member, edit your .ResX file then rerun ResGen
+    // with the /str option, or rebuild your VS project.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class DropdownIcons {
+        
+        private static global::System.Resources.ResourceManager resourceMan;
+        
+        private static global::System.Globalization.CultureInfo resourceCulture;
+        
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal DropdownIcons() {
+        }
+        
+        /// <summary>
+        ///   Returns the cached ResourceManager instance used by this class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager {
+            get {
+                if (object.ReferenceEquals(resourceMan, null)) {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("DarkUI.Icons.DropdownIcons", typeof(DropdownIcons).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+        
+        /// <summary>
+        ///   Overrides the current thread's CurrentUICulture property for all
+        ///   resource lookups using this strongly typed resource class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture {
+            get {
+                return resourceCulture;
+            }
+            set {
+                resourceCulture = value;
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized resource of type System.Drawing.Bitmap.
+        /// </summary>
+        internal static System.Drawing.Bitmap small_arrow {
+            get {
+                object obj = ResourceManager.GetObject("small_arrow", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+    }
+}
diff --git a/DarkUI/Icons/DropdownIcons.resx b/DarkUI/Icons/DropdownIcons.resx
new file mode 100644
index 0000000..8ae3851
--- /dev/null
+++ b/DarkUI/Icons/DropdownIcons.resx
@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <assembly alias="System.Windows.Forms" name="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
+  <data name="small_arrow" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\small_arrow.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+</root>
\ No newline at end of file
diff --git a/DarkUI/Renderers/DarkMenuRenderer.cs b/DarkUI/Renderers/DarkMenuRenderer.cs
index 9997e66..ef80e2f 100644
--- a/DarkUI/Renderers/DarkMenuRenderer.cs
+++ b/DarkUI/Renderers/DarkMenuRenderer.cs
@@ -1,4 +1,5 @@
 using DarkUI.Config;
+using DarkUI.Controls;
 using DarkUI.Icons;
 using System;
 using System.Drawing;
@@ -22,6 +23,7 @@ namespace DarkUI.Renderers
         {
             base.InitializeItem(item);
 
+            item.BackColor = Colors.GreyBackground;
             item.ForeColor = Colors.LightText;
 
             if (item.GetType() == typeof(ToolStripSeparator))
@@ -107,15 +109,15 @@ namespace DarkUI.Renderers
 
             if (e.Item.Enabled)
             {
-                // Normal item
-                if (e.Item.Selected)
-                {
-                    var rect = new Rectangle(2, 0, e.Item.Width - 3, e.Item.Height);
+                
+                var bgColor = e.Item.Selected ? Colors.GreyHighlight : e.Item.BackColor;
 
-                    using (var b = new SolidBrush(Colors.GreySelection))
-                    {
-                        g.FillRectangle(b, rect);
-                    }
+                // Normal item
+                var rect = new Rectangle(2, 0, e.Item.Width - 3, e.Item.Height);
+
+                using (var b = new SolidBrush(bgColor))
+                {
+                    g.FillRectangle(b, rect);
                 }
 
                 // Header item on open menu
@@ -123,8 +125,6 @@ namespace DarkUI.Renderers
                 {
                     if (((ToolStripMenuItem)e.Item).DropDown.Visible && e.Item.IsOnDropDown == false)
                     {
-                        var rect = new Rectangle(2, 0, e.Item.Width - 3, e.Item.Height);
-
                         using (var b = new SolidBrush(Colors.GreySelection))
                         {
                             g.FillRectangle(b, rect);
diff --git a/DarkUI/Resources/small_arrow.png b/DarkUI/Resources/small_arrow.png
new file mode 100644
index 0000000000000000000000000000000000000000..482481653597a147e56e890c8a408c4b4ca88010
GIT binary patch
literal 16811
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zCcCGK!l73rB!swgKmzVaAS5br=nZk{0Zts?Qi&6ADbIF1@p_Z(lwFFDCTcdX<M)5#
z`OVCm7awwK_2Mfh7EUd29Cu=6xw8hJkHP!+6OY5+H}u<oz{iup^3{mrPJWlXk9~ON
z<g*-i?k{(JBi`t~YFhrFifq4!tK&fc-W=CFI}VU_9mjkRZ@ONqa__5eD!gmADp$0w
z)D0H#mb<(g;!C?1*R9>_mSI=UwilXX69NoyjQH`O??vXgRY~KTU?<IDg->1L>#fT9
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zEKRzD|FtSxaU7VUI2w(rqgvGuH$iR~qNIq5B7lbw?RYU73tn_O3zEm_;K&NyAa;F^
zPvWAUKa5+IO41Q|O~y3{NJm~YVFwh&F$zSvDv7g1wna3-FzlzdW?Lfe;{o>K2z2sH
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diff --git a/Example/Forms/Docking/DockDocument.Designer.cs b/Example/Forms/Docking/DockDocument.Designer.cs
index 8f6a77d..d5d706d 100644
--- a/Example/Forms/Docking/DockDocument.Designer.cs
+++ b/Example/Forms/Docking/DockDocument.Designer.cs
@@ -29,6 +29,7 @@
         private void InitializeComponent()
         {
             this.txtDocument = new System.Windows.Forms.TextBox();
+            this.cmbOptions = new DarkUI.Controls.DarkDropdownList();
             this.SuspendLayout();
             // 
             // txtDocument
@@ -44,10 +45,24 @@
             this.txtDocument.TabIndex = 1;
             this.txtDocument.Text = "This is some example text";
             // 
+            // cmbOptions
+            // 
+            this.cmbOptions.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.cmbOptions.DropdownDirection = System.Windows.Forms.ToolStripDropDownDirection.AboveRight;
+            this.cmbOptions.Font = new System.Drawing.Font("Segoe UI", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
+            this.cmbOptions.Location = new System.Drawing.Point(0, 158);
+            this.cmbOptions.MaxHeight = 300;
+            this.cmbOptions.Name = "cmbOptions";
+            this.cmbOptions.ShowBorder = false;
+            this.cmbOptions.Size = new System.Drawing.Size(65, 15);
+            this.cmbOptions.TabIndex = 2;
+            this.cmbOptions.Text = "darkComboBox1";
+            // 
             // DockDocument
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.Controls.Add(this.cmbOptions);
             this.Controls.Add(this.txtDocument);
             this.Font = new System.Drawing.Font("Segoe UI", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
             this.Name = "DockDocument";
@@ -60,5 +75,6 @@
         #endregion
 
         private System.Windows.Forms.TextBox txtDocument;
+        private DarkUI.Controls.DarkDropdownList cmbOptions;
     }
 }
diff --git a/Example/Forms/Docking/DockDocument.cs b/Example/Forms/Docking/DockDocument.cs
index 1b737ca..fe8fa72 100644
--- a/Example/Forms/Docking/DockDocument.cs
+++ b/Example/Forms/Docking/DockDocument.cs
@@ -1,4 +1,5 @@
 using DarkUI.Config;
+using DarkUI.Controls;
 using DarkUI.Docking;
 using DarkUI.Forms;
 using System.Drawing;
@@ -16,6 +17,14 @@ namespace Example
 
             // Workaround to stop the textbox from highlight all text.
             txtDocument.SelectionStart = txtDocument.Text.Length;
+
+            // Build dummy dropdown data
+            cmbOptions.Items.Add(new DarkDropdownItem("25%"));
+            cmbOptions.Items.Add(new DarkDropdownItem("50%"));
+            cmbOptions.Items.Add(new DarkDropdownItem("100%"));
+            cmbOptions.Items.Add(new DarkDropdownItem("200%"));
+            cmbOptions.Items.Add(new DarkDropdownItem("300%"));
+            cmbOptions.Items.Add(new DarkDropdownItem("400%"));
         }
 
         public DockDocument(string text, Image icon)
diff --git a/Example/Forms/Docking/DockLayers.Designer.cs b/Example/Forms/Docking/DockLayers.Designer.cs
index 1e43698..169d9cc 100644
--- a/Example/Forms/Docking/DockLayers.Designer.cs
+++ b/Example/Forms/Docking/DockLayers.Designer.cs
@@ -32,23 +32,35 @@ namespace Example
         private void InitializeComponent()
         {
             this.lstLayers = new DarkUI.Controls.DarkListView();
+            this.cmbList = new DarkUI.Controls.DarkDropdownList();
             this.SuspendLayout();
             // 
             // lstLayers
             // 
             this.lstLayers.Dock = System.Windows.Forms.DockStyle.Fill;
-            this.lstLayers.Location = new System.Drawing.Point(0, 25);
+            this.lstLayers.Location = new System.Drawing.Point(0, 51);
             this.lstLayers.Name = "lstLayers";
             this.lstLayers.ShowIcons = true;
-            this.lstLayers.Size = new System.Drawing.Size(280, 425);
+            this.lstLayers.Size = new System.Drawing.Size(280, 399);
             this.lstLayers.TabIndex = 0;
             this.lstLayers.Text = "darkListView1";
             // 
+            // cmbList
+            // 
+            this.cmbList.Dock = System.Windows.Forms.DockStyle.Top;
+            this.cmbList.Location = new System.Drawing.Point(0, 25);
+            this.cmbList.Name = "cmbList";
+            this.cmbList.ShowBorder = false;
+            this.cmbList.Size = new System.Drawing.Size(280, 26);
+            this.cmbList.TabIndex = 1;
+            this.cmbList.Text = "darkDropdownList1";
+            // 
             // DockLayers
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             this.Controls.Add(this.lstLayers);
+            this.Controls.Add(this.cmbList);
             this.DefaultDockArea = DarkUI.Docking.DarkDockArea.Right;
             this.DockText = "Layers";
             this.Font = new System.Drawing.Font("Segoe UI", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
@@ -63,5 +75,6 @@ namespace Example
         #endregion
 
         private DarkListView lstLayers;
+        private DarkDropdownList cmbList;
     }
 }
diff --git a/Example/Forms/Docking/DockLayers.cs b/Example/Forms/Docking/DockLayers.cs
index 2d650f7..ebe0440 100644
--- a/Example/Forms/Docking/DockLayers.cs
+++ b/Example/Forms/Docking/DockLayers.cs
@@ -1,4 +1,5 @@
-using DarkUI.Controls;
+using System;
+using DarkUI.Controls;
 using DarkUI.Docking;
 
 namespace Example
@@ -18,6 +19,12 @@ namespace Example
                 item.Icon = Icons.application_16x;
                 lstLayers.Items.Add(item);
             }
+
+            // Build dropdown list data
+            for (var i = 0; i < 5; i++)
+            {
+                cmbList.Items.Add(new DarkDropdownItem($"Dropdown item #{i}"));
+            }
         }
 
         #endregion