// *********************************
// Message from Original Author:
//
// 2008 Jose Menendez Poo
// Please give me credit if you use this code. It's all I ask.
// Contact me for more info: menendezpoo@gmail.com
// *********************************
//
// Original project from http://ribbon.codeplex.com/
// Continue to support and maintain by http://officeribbon.codeplex.com/
using System.Diagnostics;
using System.ComponentModel;
using System.Security.Permissions;
using System.Windows.Forms.RibbonHelpers;

namespace System.Windows.Forms
{
    /// <summary>
    /// 
    /// </summary>
    public class RibbonForm
        : Form, IRibbonForm
    {

        #region Fields
        private bool? _isopeninvisualstudiodesigner;
        #endregion

        #region Ctor

        public RibbonForm():
            base()
        {
            if (!IsOpenInVisualStudioDesigner())
            {
                if (WinApi.IsWindows && !WinApi.IsGlassEnabled)
                {
                    FormBorderStyle = FormBorderStyle.None;
                    SetStyle(ControlStyles.ResizeRedraw, true);
                    SetStyle(ControlStyles.Opaque, WinApi.IsGlassEnabled);
                    SetStyle(ControlStyles.AllPaintingInWmPaint, true);
                    DoubleBuffered = true;
                }
                Helper = new RibbonFormHelper(this);
            }
        }
        #endregion

        #region Overrides
        protected bool IsOpenInVisualStudioDesigner()
        {
            if (!_isopeninvisualstudiodesigner.HasValue)
            {
                _isopeninvisualstudiodesigner = LicenseManager.UsageMode == LicenseUsageMode.Designtime ||
                                                this.DesignMode;
                if (!_isopeninvisualstudiodesigner.Value)
                {
                    try
                    {
                        using (var process = Process.GetCurrentProcess())
                        {
                            _isopeninvisualstudiodesigner = process.ProcessName.ToLowerInvariant().Contains("devenv");
                        }
                    }
                    catch
                    {
                    }
                }
            }
            return _isopeninvisualstudiodesigner.Value;
        }

        /// <summary>
        /// Just for debugging messages
        /// </summary>
        /// <param name="m"></param>
        protected override void OnNotifyMessage(Message m)
        {
            base.OnNotifyMessage(m);
        }

        /// <summary>
        /// Overrides the WndProc funciton
        /// </summary>
        /// <param name="m"></param>
        [SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
        protected override void WndProc(ref Message m)
        {
            if (IsOpenInVisualStudioDesigner())
            {
                base.WndProc(ref m);
            }
            else if (!Helper.WndProc(ref m))
            {
                base.WndProc(ref m);
            }
        }

        protected override CreateParams CreateParams
        {
            [SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
            get
            {
                CreateParams cp = base.CreateParams;
                if (!IsOpenInVisualStudioDesigner())
                {
                    if (WinApi.IsWindows && !WinApi.IsGlassEnabled)
                    {
                        cp.Style |= 0x20000 | 0x80000 | 0x40000; //WS_MINIMIZEBOX | WS_SYSMENU | WS_SIZEBOX;
                                                                 //cp.ClassStyle |= 0x8 | 0x20000; //CS_DBLCLKS | CS_DROPSHADOW;
                    }
                }
                return cp;
            }
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            if (IsOpenInVisualStudioDesigner())
            {
                base.OnPaint(e);
            }
            else
            {
                // override OnPaint and do NOT call base, otherwise problems as MDI parent occur
                Helper.Form_Paint(this, e);
            }
        }

        #endregion

        #region IRibbonForm Members

        /// <summary>
        /// Gets the helper for making the form a ribbon form
        /// </summary>
        public RibbonFormHelper Helper { get; }

        #endregion
    }
}