using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace LYFZ.ComponentLibrary
{
    /// <summary>
    /// 所有内容窗体的基窗体
    /// </summary>
    public partial class BaseContentsFormMain : BaseFormRelease, LYFZ.StandardInterface.IFormMain
    {
      
        public BaseContentsFormMain()
        {
            
            InitializeComponent();
            this.ctlScrollBarH.Scroll += new EventHandler(ctlScrollBarH_Scroll);
            this.ctlScrollBarV.Scroll += new EventHandler(ctlScrollBarV_Scroll);
            this.plExMainContainer.Resize += new EventHandler(plExMainContainer_Resize);
            this.plFormMainContent.Resize += new EventHandler(plFormMainContent_Resize);
            this.Resize += new EventHandler(BaseContentsFormRelease_Resize);
            this.Shown += new EventHandler(BaseContentsFormRelease_Shown);
            this.isOverrideOnPaint = true;
            IsCustomScrollBar = false;
            this.plExMainContainer.MouseWheel += new MouseEventHandler(plExMainContainer_MouseWheel);
            this.ctlScrollBarV.MouseWheel += new MouseEventHandler(ctlScrollBarV_MouseWheel);
        }

        /// <summary>
        /// 重载新窗体
        /// </summary>
        /// <param name="objNewForm"></param>
        public void ReloadNewForm(object objNewForm)
        {
            LYFZ.ComponentLibrary.BaseContentsFormMain frm = (LYFZ.ComponentLibrary.BaseContentsFormMain)objNewForm;
            frm.TopLevel = this.TopLevel;
            frm.IsShadow = this.IsShadow;
            frm.MaximizeBox = this.MaximizeBox;
            frm.MinimizeBox = this.MinimizeBox;
            frm.IsShowCloseBox = this.IsShowCloseBox;
            frm.TitleBgImageHeight = this.TitleBgImageHeight;
            frm.BottomBgImageHeight = this.BottomBgImageHeight;
            frm.IsMaximized = this.IsMaximized;
            frm.FormMobile = this.FormMobile;
            frm.IsUserControlsSize = this.IsUserControlsSize;
            frm.Dock = this.Dock;
            frm.IsCustomScrollBar = this.IsCustomScrollBar;
            frm.Parent = this.Parent;
            frm.IsShowBtnFormMenu = this.IsShowBtnFormMenu;
            frm.IsShowBtnFormSkin = this.IsShowBtnFormMenu;
            frm.IsCloseForm = this.IsCloseForm;
            frm.IsMinimize = this.IsMinimize;
            if (!frm.IsMaximized && !frm.IsMinimize && !frm.IsCloseForm)
            {
                frm.SetCoverageTitleButtonEvent();
            }

            frm.Show();
            
            this.Close();
            this.Dispose();

        }

        /// <summary>
        /// 设置发生错误时显示信息
        /// </summary>
        /// <param name="msg"></param>
        public void SetError(string msg)
        {
            LabelEx tryLabMsg = new LabelEx();
            tryLabMsg.Text = msg;
            tryLabMsg.ForeColor =Color.Red;
            tryLabMsg.Font = new System.Drawing.Font("宋体", 12);
            tryLabMsg.Padding = new Padding(10);
            tryLabMsg.Dock = DockStyle.Fill;
            this.plExMainContainer.Controls.Add(tryLabMsg);
        
        }

        /// <summary>
        /// 公共plExMainContainer对象
        /// </summary>
      //  public LYFZ.ComponentLibrary.PanelEx PublicContainer = null;

        /// <summary>
        /// 系统菜单事件接口
        /// </summary>
        public LYFZ.StandardInterface.IMenuClick iMenuClick = null;

  

        /// <summary>
        /// 覆盖窗体标题栏上最小化、最大化和关闭按钮的事件
        /// </summary>
        public void SetCoverageTitleButtonEvent()
        {
            this.btnAppFormExit.Click += new EventHandler(ParentFormBtnAppFormExit_Click);
            this.btnAppFormMaximize.Click += new EventHandler(ParentFormBtnAppFormMaximize_Click);
            this.btnAppFormMinimize.Click += new EventHandler(ParentFormBtnAppFormMinimize_Click);
            isCoverageTitleButtonEvent = true;
        }
        bool isCoverageTitleButtonEvent = false;
        protected override void btnAppFormMaximize_Move(object sender, EventArgs e)
        {
            if (isCoverageTitleButtonEvent)
            {
                this.SetFormMzximizeBtn(this.ParentForm.WindowState);
            }
            else
            {
                base.btnAppFormMaximize_Move(sender, e);
            }
        }

        /// <summary>
        /// 最小化父窗体
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected virtual void ParentFormBtnAppFormMinimize_Click(object sender, EventArgs e)
        {
            this.ParentForm.WindowState = FormWindowState.Minimized;
        }
        /// <summary>
        /// 最大化父窗体
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected virtual void ParentFormBtnAppFormMaximize_Click(object sender, EventArgs e)
        {
            if (this.ParentForm.WindowState == FormWindowState.Normal)
            {
                this.ParentForm.WindowState = FormWindowState.Maximized;
                
            }
            else {
                this.ParentForm.WindowState = FormWindowState.Normal;
            }
            
        }
        /// <summary>
        /// 关闭父窗体
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected virtual void ParentFormBtnAppFormExit_Click(object sender, EventArgs e)
        {
            this.ParentForm.Close();
        }


        #region 滚动轮滚动时滚动窗体
        /// <summary>
        /// 获取滚动轮滚动的值
        /// </summary>
        /// <param name="e"></param>
        /// <returns></returns>
        int getMouseWheelDelta(MouseEventArgs e)
        {
           // this.Text = this.ctlScrollBarV.Maximum + "/" + this.ctlScrollBarV.LargeChange.ToString() + "*" + ctlScrollBarV.Value;
            //e.Delta 在正负 120 之间
            //滚动条要滚动的值在 0 到 this.ctlScrollBarV.Maximum - this.ctlScrollBarV.LargeChange 之间
            int tempDelta = -(e.Delta);
            if (tempDelta < this.ctlScrollBarV.Minimum)
            {
                tempDelta = this.ctlScrollBarV.Minimum;
            }
            int tempDifference = this.ctlScrollBarV.Maximum - this.ctlScrollBarV.LargeChange;
            int tempScrollBar = tempDifference / 120;
            if (tempScrollBar <= 0)
            {
                tempScrollBar = 1;
            }

            if (tempDelta == 120)
            {
                tempDelta = tempDifference;
            }
            else
            {

                tempDelta = tempDelta * tempScrollBar;
                if (tempDelta > tempDifference)
                {
                    tempDelta = tempDifference;
                }
            }
            
            return tempDelta;

        }

        void ctlScrollBarV_MouseWheel(object sender, MouseEventArgs e)
        {
            this.ctlScrollBarV.Value = getMouseWheelDelta(e);

            //垂直滚动
            scrollY = ctlScrollBarV.Value;
            this.plExMainContainer.AutoScrollPosition = new Point(scrollX, ctlScrollBarV.Value);
        }

        void plExMainContainer_MouseWheel(object sender, MouseEventArgs e)
        {
            this.ctlScrollBarV.Value = getMouseWheelDelta(e);
           
            //垂直滚动
            scrollY = ctlScrollBarV.Value;
        }
        #endregion
        /// <summary>
        /// 记录滚动条显示时需要的宽度
        /// </summary>
        int PanlOffset = 0;
        /// <summary>
        /// 首次显示时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void BaseContentsFormRelease_Shown(object sender, EventArgs e)
        {
            if (IsCustomScrollBar)
            {
                PanlOffset = 20;
            }
            ResetControls();
        }


        /// <summary>
        /// 窗体大小变化时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void BaseContentsFormRelease_Resize(object sender, EventArgs e)
        {
            isSetplExMainContainerFocus = true;
            ResetControls();
        }
        /// <summary>
        /// 父panl大小变化时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void plFormMainContent_Resize(object sender, EventArgs e)
        {
            isSetplExMainContainerFocus = true;
            ResetControls();

        }
        /// <summary>
        /// 子panl大小变化时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void plExMainContainer_Resize(object sender, EventArgs e)
        {
            if (!this.TopLevel)
            {
                ResetControls(); 
            }
            isSetplExMainContainerFocus = true;
        }
        /// <summary>
        /// 重设相关控件
        /// </summary>
        void ResetControls()
        {
            SetplExMainContainerSize(PanlOffset);
            SetScrollBarAttr();
            InitializeScrollBar();
            
        }

        //两个变量记录水平或垂直方向的滚动条位置，已达到同步效果
        int scrollX = 0;
        int scrollY = 0;
        bool isShowCtlScrollBarV = false;//记录是否显示垂直滚动条
        bool isShowCtlScrollBarH = false;//记录日否显示水平滚动条
        void ctlScrollBarV_Scroll(object sender, EventArgs e)
        {
            //垂直滚动
            scrollY = ctlScrollBarV.Value;
            this.plExMainContainer.AutoScrollPosition = new Point(scrollX, ctlScrollBarV.Value);
           
        }

        void ctlScrollBarH_Scroll(object sender, EventArgs e)
        {
            //水平滚动
            scrollX = ctlScrollBarH.Value;
            this.plExMainContainer.AutoScrollPosition = new Point(ctlScrollBarH.Value, scrollY);
        }
        /// <summary>
        /// 重绘控件
        /// </summary>
        /// <param name="e"></param>
        protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
        {
            base.OnPaint(e);
            SetplExMainContainerSize(PanlOffset);
        }
        /// <summary>
        /// 设置内容容器的大小和位置
        /// </summary>
        public void SetplExMainContainerSize(int offset = 0)
        {
            //父panl大小和位置
            this.plFormMainContent.Location = new Point(0, this.TitleBgImageHeight);


            //子panl大小和位置
            isShowCtlScrollBarH = this.plExMainContainer.HorizontalScroll.Visible;
            isShowCtlScrollBarV = this.plExMainContainer.VerticalScroll.Visible;

            if (IsCustomScrollBar)
            {
                if (isShowCtlScrollBarV)
                {
                    this.ctlScrollBarV.Visible = true;
                    this.plFormMainContent.Width = this.Width - offset;
                    this.plExMainContainer.Width = this.plFormMainContent.Width + offset - 4;
                }
                else
                {
                    this.ctlScrollBarV.Visible = false;
                    this.plFormMainContent.Width = this.Width;
                    this.plExMainContainer.Width = this.plFormMainContent.Width;
                }
                if (isShowCtlScrollBarH)
                {
                    this.ctlScrollBarH.Visible = true;
                    this.plFormMainContent.Height = this.Height - this.TitleBgImageHeight - this.BottomBgImageHeight - offset;
                    this.plExMainContainer.Height = this.plFormMainContent.Height + offset - 4;
                }
                else
                {
                    this.ctlScrollBarH.Visible = false;
                    this.plFormMainContent.Height = this.Height - this.TitleBgImageHeight - this.BottomBgImageHeight;
                    this.plExMainContainer.Height = this.plFormMainContent.Height;
                }

            }
            else
            {
                this.plFormMainContent.Width = this.Width;
                this.plFormMainContent.Height = this.Height - this.TitleBgImageHeight - this.BottomBgImageHeight;
                this.plExMainContainer.Width = this.plFormMainContent.Width;
                this.plExMainContainer.Height = this.plFormMainContent.Height;
            }



        }
        /// <summary>
        /// 初始化滚动条
        /// </summary>
        public void InitializeScrollBar()
        {
            this.plExMainContainer.AutoScrollPosition = new Point(scrollX, scrollY);
            this.ctlScrollBarV.Minimum = 0;
            this.ctlScrollBarV.Maximum = this.plExMainContainer.DisplayRectangle.Height;
            this.ctlScrollBarV.LargeChange = ctlScrollBarV.Maximum / ctlScrollBarV.Height + this.plExMainContainer.Height - 20;
            this.ctlScrollBarV.Value = Math.Abs(this.plExMainContainer.AutoScrollPosition.Y);
            this.ctlScrollBarH.Minimum = 0;
            this.ctlScrollBarH.Maximum = this.plExMainContainer.DisplayRectangle.Width;
            this.ctlScrollBarH.LargeChange = ctlScrollBarH.Maximum / ctlScrollBarH.Width + this.plExMainContainer.Width - 20;
            this.ctlScrollBarH.Value = Math.Abs(this.plExMainContainer.AutoScrollPosition.X);



        }

        /// <summary>
        /// 设置滚动条属性
        /// </summary>
        void SetScrollBarAttr()
        {
            if (IsCustomScrollBar)
            {
                this.ctlScrollBarV.Location = new Point(this.plFormMainContent.Width, this.plFormMainContent.Location.Y);
                this.ctlScrollBarH.Location = new Point(0, this.plFormMainContent.Location.Y + this.plFormMainContent.Height);
                this.ctlScrollBarV.Size = new Size(this.ctlScrollBarV.Width, this.plFormMainContent.Height);
                this.ctlScrollBarH.Size = new Size(this.plFormMainContent.Width, this.ctlScrollBarH.Height);

                scrollX = this.ctlScrollBarH.Value;
                scrollY = this.ctlScrollBarV.Value;
            }

        }

        bool isCustomScrollBar = false;
        /// <summary>
        /// 设置是否使用自定义滚动条
        /// </summary>
        [Browsable(false), Category("自定义窗体属性"), Description("设置是否使用自定义滚动条")]
        public bool IsCustomScrollBar
        {
            get { return isCustomScrollBar; }
            set { isCustomScrollBar = value; }
        }
        private bool isSetplExMainContainerFocus = true;
        private void plExMainContainer_MouseEnter(object sender, EventArgs e)
        {
            if (isSetplExMainContainerFocus)
            this.plExMainContainer.Focus();

            isSetplExMainContainerFocus = false;
        }

      
    }
}