using System;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Diagnostics.CodeAnalysis;

namespace WeifenLuo.WinFormsUI.Docking
{
	public class DockContent : Form, IDockContent
	{
		public DockContent()
		{
			m_dockHandler = new DockContentHandler(this, new GetPersistStringCallback(GetPersistString));
			m_dockHandler.DockStateChanged += new EventHandler(DockHandler_DockStateChanged);
			//Suggested as a fix by bensty regarding form resize
            this.ParentChanged += new EventHandler(DockContent_ParentChanged);
		}

		//Suggested as a fix by bensty regarding form resize
        private void DockContent_ParentChanged(object Sender, EventArgs e)
        {
            if (this.Parent != null)
                this.Font = this.Parent.Font;
		}

		private DockContentHandler m_dockHandler = null;
		[Browsable(false)]
		public DockContentHandler DockHandler
		{
			get	{	return m_dockHandler;	}
		}

		[LocalizedCategory("Category_Docking")]
		[LocalizedDescription("DockContent_AllowEndUserDocking_Description")]
		[DefaultValue(true)]
		public bool AllowEndUserDocking
		{
			get	{	return DockHandler.AllowEndUserDocking;	}
			set	{	DockHandler.AllowEndUserDocking = value;	}
		}

		[LocalizedCategory("Category_Docking")]
		[LocalizedDescription("DockContent_DockAreas_Description")]
		[DefaultValue(DockAreas.DockLeft|DockAreas.DockRight|DockAreas.DockTop|DockAreas.DockBottom|DockAreas.Document|DockAreas.Float)]
		public DockAreas DockAreas
		{
			get	{	return DockHandler.DockAreas;	}
			set	{	DockHandler.DockAreas = value;	}
		}

		[LocalizedCategory("Category_Docking")]
		[LocalizedDescription("DockContent_AutoHidePortion_Description")]
		[DefaultValue(0.25)]
		public double AutoHidePortion
		{
			get	{	return DockHandler.AutoHidePortion;	}
			set	{	DockHandler.AutoHidePortion = value;	}
		}

        private string m_tabText = null;
		[Localizable(true)]
		[LocalizedCategory("Category_Docking")]
		[LocalizedDescription("DockContent_TabText_Description")]
		[DefaultValue(null)]
		public string TabText
		{
            get { return m_tabText; }
            set { DockHandler.TabText = m_tabText = value; }
		}

        private bool ShouldSerializeTabText()
		{
			return (m_tabText != null);
		}

		[LocalizedCategory("Category_Docking")]
		[LocalizedDescription("DockContent_CloseButton_Description")]
		[DefaultValue(true)]
		public bool CloseButton
		{
			get	{	return DockHandler.CloseButton;	}
			set	{	DockHandler.CloseButton = value;	}
		}

        [LocalizedCategory("Category_Docking")]
        [LocalizedDescription("DockContent_CloseButtonVisible_Description")]
        [DefaultValue(true)]
        public bool CloseButtonVisible
        {
            get { return DockHandler.CloseButtonVisible; }
            set { DockHandler.CloseButtonVisible = value; }
        }
		
		[Browsable(false)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
		public DockPanel DockPanel
		{
			get {	return DockHandler.DockPanel; }
			set	{	DockHandler.DockPanel = value;	}
		}

        [Browsable(false)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
		public DockState DockState
		{
			get	{	return DockHandler.DockState;	}
			set	{	DockHandler.DockState = value;	}
		}

        [Browsable(false)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
		public DockPane Pane
		{
			get {	return DockHandler.Pane; }
			set	{	DockHandler.Pane = value;		}
		}

		[Browsable(false)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
		public bool IsHidden
		{
			get	{	return DockHandler.IsHidden;	}
			set	{	DockHandler.IsHidden = value;	}
		}

        [Browsable(false)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
		public DockState VisibleState
		{
			get	{	return DockHandler.VisibleState;	}
			set	{	DockHandler.VisibleState = value;	}
		}

        [Browsable(false)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
		public bool IsFloat
		{
			get	{	return DockHandler.IsFloat;	}
			set	{	DockHandler.IsFloat = value;	}
		}

        [Browsable(false)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
		public DockPane PanelPane
		{
			get	{	return DockHandler.PanelPane;	}
			set	{	DockHandler.PanelPane = value;	}
		}

        [Browsable(false)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
		public DockPane FloatPane
		{
			get	{	return DockHandler.FloatPane;	}
			set	{	DockHandler.FloatPane = value;	}
		}

        [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate")]
        protected virtual string GetPersistString()
		{
            return GetType().ToString();
		}

		[LocalizedCategory("Category_Docking")]
		[LocalizedDescription("DockContent_HideOnClose_Description")]
		[DefaultValue(false)]
		public bool HideOnClose
		{
			get	{	return DockHandler.HideOnClose;	}
			set	{	DockHandler.HideOnClose = value;	}
		}

		[LocalizedCategory("Category_Docking")]
		[LocalizedDescription("DockContent_ShowHint_Description")]
		[DefaultValue(DockState.Unknown)]
		public DockState ShowHint
		{
			get	{	return DockHandler.ShowHint;	}
			set	{	DockHandler.ShowHint = value;	}
		}

		[Browsable(false)]
		public bool IsActivated
		{
			get	{	return DockHandler.IsActivated;	}
		}

		public bool IsDockStateValid(DockState dockState)
		{
			return DockHandler.IsDockStateValid(dockState);
		}

		[LocalizedCategory("Category_Docking")]
		[LocalizedDescription("DockContent_TabPageContextMenu_Description")]
		[DefaultValue(null)]
		public ContextMenu TabPageContextMenu
		{
			get	{	return DockHandler.TabPageContextMenu;	}
			set	{	DockHandler.TabPageContextMenu = value;	}
		}

        [LocalizedCategory("Category_Docking")]
        [LocalizedDescription("DockContent_TabPageContextMenuStrip_Description")]
        [DefaultValue(null)]
        public ContextMenuStrip TabPageContextMenuStrip
        {
            get { return DockHandler.TabPageContextMenuStrip; }
            set { DockHandler.TabPageContextMenuStrip = value; }
        }

		[Localizable(true)]
		[Category("Appearance")]
		[LocalizedDescription("DockContent_ToolTipText_Description")]
		[DefaultValue(null)]
		public string ToolTipText
		{
			get	{	return DockHandler.ToolTipText;	}
			set {	DockHandler.ToolTipText = value;	}
		}

		public new void Activate()
		{
			DockHandler.Activate();
		}

		public new void Hide()
		{
			DockHandler.Hide();
		}

		public new void Show()
		{
			DockHandler.Show();
		}

		public void Show(DockPanel dockPanel)
		{
			DockHandler.Show(dockPanel);
		}

		public void Show(DockPanel dockPanel, DockState dockState)
		{
			DockHandler.Show(dockPanel, dockState);
		}

        [SuppressMessage("Microsoft.Naming", "CA1720:AvoidTypeNamesInParameters")]
		public void Show(DockPanel dockPanel, Rectangle floatWindowBounds)
		{
			DockHandler.Show(dockPanel, floatWindowBounds);
		}

		public void Show(DockPane pane, IDockContent beforeContent)
		{
			DockHandler.Show(pane, beforeContent);
		}

		public void Show(DockPane previousPane, DockAlignment alignment, double proportion)
		{
			DockHandler.Show(previousPane, alignment, proportion);
		}

        [SuppressMessage("Microsoft.Naming", "CA1720:AvoidTypeNamesInParameters")]
        public void FloatAt(Rectangle floatWindowBounds)
        {
            DockHandler.FloatAt(floatWindowBounds);
        }

        public void DockTo(DockPane paneTo, DockStyle dockStyle, int contentIndex)
        {
            DockHandler.DockTo(paneTo, dockStyle, contentIndex);
        }

        public void DockTo(DockPanel panel, DockStyle dockStyle)
        {
            DockHandler.DockTo(panel, dockStyle);
        }

		#region IDockContent Members
		void IDockContent.OnActivated(EventArgs e)
		{
			this.OnActivated(e);
		}

		void IDockContent.OnDeactivate(EventArgs e)
		{
			this.OnDeactivate(e);
		}
		#endregion

		#region Events
		private void DockHandler_DockStateChanged(object sender, EventArgs e)
		{
			OnDockStateChanged(e);
		}

		private static readonly object DockStateChangedEvent = new object();
		[LocalizedCategory("Category_PropertyChanged")]
		[LocalizedDescription("Pane_DockStateChanged_Description")]
		public event EventHandler DockStateChanged
		{
			add	{	Events.AddHandler(DockStateChangedEvent, value);	}
			remove	{	Events.RemoveHandler(DockStateChangedEvent, value);	}
		}
		protected virtual void OnDockStateChanged(EventArgs e)
		{
			EventHandler handler = (EventHandler)Events[DockStateChangedEvent];
			if (handler != null)
				handler(this, e);
		}
		#endregion

        /// <summary>
        /// Overridden to avoid resize issues with nested controls
        /// </summary>
        /// <remarks>
        /// http://blogs.msdn.com/b/alejacma/archive/2008/11/20/controls-won-t-get-resized-once-the-nesting-hierarchy-of-windows-exceeds-a-certain-depth-x64.aspx
        /// http://support.microsoft.com/kb/953934
        /// </remarks>
        protected override void OnSizeChanged(EventArgs e)
        {
            if (DockPanel != null && DockPanel.SupportDeeplyNestedContent && IsHandleCreated)
            {
                BeginInvoke((MethodInvoker)delegate
                {
                    base.OnSizeChanged(e);
                });
            }
            else
            {
                base.OnSizeChanged(e);
            }
        }
	}
}