using Autodesk.Revit.UI;

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;

using UIFramework;

using Win32;

namespace ShowGridNumber
{
    public partial class GridNumberForm : Form
    {
        private IntPtr method_0()
        {
            if (!this.dictionary_0.ContainsKey(this.intptr_2))
            {
                this.dictionary_0.Add(this.intptr_2, IntPtr.Zero);
            }
            return this.dictionary_0[this.intptr_2];
        }

        private IntPtr method_1()
        {
            if (!this.dictionary_0.ContainsKey(this.intptr_1))
            {
                this.dictionary_0.Add(this.intptr_1, IntPtr.Zero);
            }
            return this.dictionary_0[this.intptr_1];
        }

        public GridNumberForm(ShowGridApplication application)
        {
            this.showGridApplication_0 = application;
            this.InitializeComponent();
        }

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern IntPtr CallWindowProc(IntPtr wndProc, IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern IntPtr SetWindowLong(IntPtr hWnd, int nIndex, IntPtr dwNewLong);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern IntPtr SetWindowLong(IntPtr hWnd, int nIndex, GridNumberForm.NewWndProc wndproc);

        [DllImport("user32.dll")]
        public static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);

        private void GridNumberForm_Load(object sender, EventArgs e)
        {
            this.method_2();
        }

        private void method_2()
        {
            IntPtr zero = IntPtr.Zero;
            try
            {
                IntPtr mainWindowHandle = Process.GetCurrentProcess().MainWindowHandle;
                this.intptr_0 = DllImportManeger.FindWindowEx(mainWindowHandle, IntPtr.Zero, "MDIClient", string.Empty);
            }
            catch
            {
            }
            finally
            {
                Marshal.FreeHGlobal(zero);
            }
        }

        private void GridNumberForm_FormClosed(object sender, FormClosedEventArgs e)
        {
            if (IntPtr.Zero != this.method_0())
            {
                GridNumberForm.SetWindowLong(this.intptr_2, -4, this.method_0());
            }
            if (IntPtr.Zero != this.method_1())
            {
                GridNumberForm.SetWindowLong(this.intptr_1, -4, this.method_1());
            }
            this.font_0.Dispose();
        }

        public IntPtr WndMsgProcChildClient(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam)
        {
            IntPtr intPtr2;
            try
            {
                IntPtr intPtr = GridNumberForm.CallWindowProc(this.method_0(), hWnd, msg, wParam, lParam);
                if (msg <= 32)
                {
                    if (msg != 2)
                    {
                        if (msg != 32)
                        {
                        }
                    }
                    else
                    {
                        GridNumberForm.SetWindowLong(this.intptr_2, -4, this.method_0());
                        this.newWndProc_0 = null;
                        base.Hide();
                    }
                }
                else if (msg != 512)
                {
                    switch (msg)
                    {
                        case 519:
                            this.bool_0 = true;
                            break;
                        case 520:
                            this.bool_0 = false;
                            break;
                        case 521:
                        case 522:
                            this.DrawGridNumText(false);
                            break;
                    }
                }
                else if (this.bool_0)
                {
                    this.DrawGridNumText(false);
                }
                intPtr2 = intPtr;
            }
            catch (Exception)
            {
                intPtr2 = IntPtr.Zero;
            }
            return intPtr2;
        }

        public IntPtr WndMsgProcChild(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam)
        {
            IntPtr intPtr2;
            try
            {
                IntPtr intPtr = GridNumberForm.CallWindowProc(this.method_1(), hWnd, msg, wParam, lParam);
                if (msg <= 5)
                {
                    if (msg != 2)
                    {
                        if (msg == 5)
                        {
                            this.DrawGridNumText(false);
                        }
                    }
                    else
                    {
                        GridNumberForm.SetWindowLong(this.intptr_1, -4, this.method_1());
                        this.newWndProc_1 = null;
                        base.Hide();
                    }
                }
                else if (msg == 532 || msg == 534)
                {
                    this.DrawGridNumText(false);
                }
                intPtr2 = intPtr;
            }
            catch (Exception)
            {
                intPtr2 = IntPtr.Zero;
            }
            return intPtr2;
        }

        public void RefreshDocAndView(UIDocument uiDoc)
        {
            if (uiDoc == null)
            {
                return;
            }
            this.uidocument_0 = uiDoc;
            if (this.gridNumberShowManager_0 == null)
            {
                this.gridNumberShowManager_0 = new GridNumberShowManager(uiDoc);
            }
            else
            {
                this.gridNumberShowManager_0.RefreshUIDocument(this.uidocument_0);
            }
            IntPtr intPtr = IntPtr.Zero;
            try
            {
                this.intptr_1 = (IntPtr)Functions.SendMessage(this.intptr_0, 553U, 0, 0);
                if (this.newWndProc_1 == null)
                {
                    this.newWndProc_1 = new GridNumberForm.NewWndProc(this.WndMsgProcChild);
                }
                IntPtr intPtr2 = GridNumberForm.SetWindowLong(this.intptr_1, -4, this.newWndProc_1);
                if (!this.dictionary_0.ContainsKey(this.intptr_1))
                {
                    this.dictionary_0.Add(this.intptr_1, intPtr2);
                }
                intPtr = Marshal.StringToHGlobalAnsi("AfxFrameOrView");
                DllImportManeger.EnumChildWindows(this.intptr_1, new DllImportManeger.CallBack(this.method_3), intPtr);
                if (this.newWndProc_0 == null)
                {
                    this.newWndProc_0 = new GridNumberForm.NewWndProc(this.WndMsgProcChildClient);
                }
                IntPtr intPtr3 = GridNumberForm.SetWindowLong(this.intptr_2, -4, this.newWndProc_0);
                if (!this.dictionary_0.ContainsKey(this.intptr_2))
                {
                    this.dictionary_0.Add(this.intptr_2, intPtr3);
                }
            }
            catch (Exception)
            {
                this.showGridApplication_0.DrawGridNumber = false;
            }
            finally
            {
                Marshal.FreeHGlobal(intPtr);
            }
        }

        public void RefreshDocAndView2019(UIDocument uiDoc)
        {
            if (uiDoc == null)
            {
                return;
            }
            this.uidocument_0 = uiDoc;
            if (this.gridNumberShowManager_0 == null)
            {
                this.gridNumberShowManager_0 = new GridNumberShowManager(uiDoc);
            }
            else
            {
                this.gridNumberShowManager_0.RefreshUIDocument(this.uidocument_0);
            }
            IntPtr intPtr = IntPtr.Zero;
            try
            {
                intPtr = Marshal.StringToHGlobalAnsi("AfxFrameOrView");
                MFCMDIChildFrameControl mfcmdichildFrameControl = MainWindow.getMainWnd().getAllViews().Where(form=>form.isActive)
                    .FirstOrDefault<MFCMDIChildFrameControl>();
                this.intptr_0 = mfcmdichildFrameControl.hostHWnd;
                DllImportManeger.EnumChildWindows(this.intptr_0, new DllImportManeger.CallBack(this.method_3), intPtr);
                if (this.newWndProc_0 == null)
                {
                    this.newWndProc_0 = new GridNumberForm.NewWndProc(this.WndMsgProcChildClient);
                }
                IntPtr intPtr2 = GridNumberForm.SetWindowLong(this.intptr_2, -4, this.newWndProc_0);
                if (!this.dictionary_0.ContainsKey(this.intptr_2))
                {
                    this.dictionary_0.Add(this.intptr_2, intPtr2);
                }
            }
            catch
            {
                this.showGridApplication_0.DrawGridNumber = false;
            }
            finally
            {
                Marshal.FreeHGlobal(intPtr);
            }
        }

        public bool UnLoad()
        {
            if (this.newWndProc_0 != null)
            {
                if (this.showGridApplication_0.m_version < 2019)
                {
                    GridNumberForm.SetWindowLong(this.intptr_1, -4, this.method_1());
                }
                GridNumberForm.SetWindowLong(this.intptr_2, -4, this.method_0());
                return false;
            }
            return true;
        }

        private bool method_3(IntPtr intptr_3, IntPtr intptr_4)
        {
            try
            {
                string text = Marshal.PtrToStringAnsi(intptr_4);
                StringBuilder stringBuilder = new StringBuilder(512);
                DllImportManeger.GetClassName(intptr_3, stringBuilder, stringBuilder.Capacity);
                if (stringBuilder.ToString().Contains(text))
                {
                    this.intptr_2 = intptr_3;
                    return false;
                }
            }
            catch
            {
            }
            return true;
        }

        public void SetShowLinkDocGridNum(bool bShowLink)
        {
            ShowGridApplication.m_ThisApp.m_bShowLink = bShowLink;
        }

        public void DrawGridNumText(bool bIdling = false)
        {
            Graphics graphics = base.CreateGraphics();
            if (this.uidocument_0 != null && this.uidocument_0.ActiveView != null)
            {
                if (this.showGridApplication_0.DrawGridNumber)
                {
                    if (this.uidocument_0.ActiveView.ViewType != Autodesk.Revit.DB.ViewType.ThreeD)
                    {
                        Size size = default(Size);
                        Point empty = Point.Empty;
                        DllImportManeger.Rect rect;
                        DllImportManeger.GetWindowRect(this.intptr_0, out rect);
                        if (this.gridNumberShowManager_0.GetGridNumberShowInfo(bIdling, rect, ref empty, ref size) == CalcGridInfoResult.eIdling)
                        {
                            return;
                        }
                        base.Location = empty;
                        base.Size = size;
                        this.gridNumberShowManager_0.TranformIntersectPt(base.Handle);
                        graphics.SmoothingMode = SmoothingMode.AntiAlias;
                        graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
                        graphics.CompositingQuality = CompositingQuality.HighQuality;
                        graphics.Clear(Color.White);
                        Brush red = Brushes.Red;
                        Pen pen = new Pen(Color.Red, 2f);
                        StringFormat stringFormat = new StringFormat();
                        stringFormat.Alignment = StringAlignment.Center;
                        stringFormat.LineAlignment = StringAlignment.Center;
                        StringFormat stringFormat2 = new StringFormat();
                        stringFormat2.Alignment = StringAlignment.Near;
                        stringFormat2.LineAlignment = StringAlignment.Center;
                        StringFormat stringFormat3 = new StringFormat();
                        stringFormat3.Alignment = StringAlignment.Far;
                        stringFormat3.LineAlignment = StringAlignment.Center;
                        for (int i = 0; i < this.gridNumberShowManager_0.m_lstGridNumShowInfo.Count; i++)
                        {
                            Point cirlLocation = this.gridNumberShowManager_0.m_lstGridNumShowInfo[i].CirlLocation;
                            Point textLocation = this.gridNumberShowManager_0.m_lstGridNumShowInfo[i].TextLocation;
                            string elemText = this.gridNumberShowManager_0.m_lstGridNumShowInfo[i].ElemText;
                            if (this.gridNumberShowManager_0.m_lstGridNumShowInfo[i].ElemClass == ElemType.eGrid)
                            {
                                graphics.DrawArc(pen, cirlLocation.X, cirlLocation.Y, 50, 50, 0, 360);
                            }
                            switch (this.gridNumberShowManager_0.m_lstGridNumShowInfo[i].OutlineSide)
                            {
                                case OutLineSide.eUp:
                                case OutLineSide.eBottom:
                                    graphics.DrawString(elemText, this.font_0, red, textLocation, stringFormat);
                                    break;
                                case OutLineSide.eLeft:
                                    graphics.DrawString(elemText, this.font_0, red, textLocation, stringFormat2);
                                    break;
                                case OutLineSide.eRight:
                                    graphics.DrawString(elemText, this.font_0, red, textLocation, stringFormat3);
                                    break;
                            }
                        }
                        stringFormat.Dispose();
                        stringFormat2.Dispose();
                        stringFormat3.Dispose();
                        graphics.Dispose();
                        return;
                    }
                }
                graphics.Clear(Color.White);
                graphics.Dispose();
                return;
            }
            graphics.Clear(Color.White);
            graphics.Dispose();
        }

        private void InitializeComponent()
        {
            base.SuspendLayout();
            base.AutoScaleDimensions = new SizeF(6f, 12f);
            base.AutoScaleMode = AutoScaleMode.Font;
            this.BackColor = Color.White;
            base.ClientSize = new Size(132, 76);
            base.FormBorderStyle = FormBorderStyle.None;
            base.Name = "GridNumberForm";
            base.ShowInTaskbar = false;
            base.TransparencyKey = Color.White;
            base.FormClosed += this.GridNumberForm_FormClosed;
            base.Load += this.GridNumberForm_Load;
            base.ResumeLayout(false);
        }

        private Dictionary<IntPtr, IntPtr> dictionary_0 = new Dictionary<IntPtr, IntPtr>();

        private UIDocument uidocument_0;

        private Font font_0 = new Font("微软雅黑", 25f, GraphicsUnit.Pixel);

        private GridNumberShowManager gridNumberShowManager_0;

        private GridNumberForm.NewWndProc newWndProc_0;

        private GridNumberForm.NewWndProc newWndProc_1;

        private IntPtr intptr_0 = IntPtr.Zero;

        private IntPtr intptr_1 = IntPtr.Zero;

        private IntPtr intptr_2 = IntPtr.Zero;

        private bool bool_0;

        private ShowGridApplication showGridApplication_0;

        public delegate IntPtr NewWndProc(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);

    }
}