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

namespace TemuKJD.BaseForms
{
    public partial class LRBaseForm : BaseForm
    {
        const int WM_NCHITTEST = 0x0084;
        const int HTLEFT = 10;      //左边界
        const int HTRIGHT = 11;     //右边界
        const int HTTOP = 12;       //上边界
        const int HTTOPLEFT = 13;   //左上角
        const int HTTOPRIGHT = 14;  //右上角
        const int HTBOTTOM = 15;    //下边界
        const int HTBOTTOMLEFT = 0x10;    //左下角
        const int HTBOTTOMRIGHT = 17;     //右下角

        public bool Dragable { get; set; } = true;

        protected override void WndProc(ref Message m)
        {
            switch (m.Msg)
            {
                case WM_NCHITTEST:
                    base.WndProc(ref m);
                    Point vPoint = new Point((int)m.LParam & 0xFFFF,
                        (int)m.LParam >> 16 & 0xFFFF);
                    vPoint = PointToClient(vPoint);
                    if (vPoint.X <= 5)
                        if (vPoint.Y <= 5)
                            m.Result = (IntPtr)HTTOPLEFT;
                        else if (vPoint.Y >= ClientSize.Height - 5)
                            m.Result = (IntPtr)HTBOTTOMLEFT;
                        else m.Result = (IntPtr)HTLEFT;
                    else if (vPoint.X >= ClientSize.Width - 5)
                        if (vPoint.Y <= 5)
                            m.Result = (IntPtr)HTTOPRIGHT;
                        else if (vPoint.Y >= ClientSize.Height - 5)
                            m.Result = (IntPtr)HTBOTTOMRIGHT;
                        else m.Result = (IntPtr)HTRIGHT;
                    else if (vPoint.Y <= 5)
                        m.Result = (IntPtr)HTTOP;
                    else if (vPoint.Y >= ClientSize.Height - 5)
                        m.Result = (IntPtr)HTBOTTOM;
                    break;
                default:
                    try
                    {
                        base.WndProc(ref m);
                    }
                    catch
                    {
                    }
                    break;
            }

            this.Resize += LRBaseForm_Resize;
        }

        private void LRBaseForm_Resize(object sender, EventArgs e)
        {
            if (WindowState == FormWindowState.Maximized)
            {
                pbMaxBase.Visible = false;
                pbNormalBase.Visible = true;
                if (showMinimizedBox)
                    pbMinBase.Visible = true;
            }
            else if (WindowState == FormWindowState.Minimized)
            {
            }
            else
            {
                if (showMaximizeBox)
                    pbMaxBase.Visible = true;
                pbNormalBase.Visible = false;
                if (showMinimizedBox)
                    pbMinBase.Visible = true;
            }

            if (!showMinimizedBox)
                this.pbMinBase.Visible = false;
            if (!showMaximizeBox)
            {
                this.pbMaxBase.Visible = false;
                this.pbNormalBase.Visible = false;
            }
        }

        public LRBaseForm()
        {
            InitializeComponent();
            this.MaximumSize = new Size(Screen.PrimaryScreen.WorkingArea.Width, Screen.PrimaryScreen.WorkingArea.Height);
        }

        private void LcBaseForm_Load(object sender, EventArgs e)
        {
            if (BaseClass.Ico != null)
                Iconx = Icon = BaseClass.Ico;
            else
                Iconx = this.Icon = BaseClass.Ico = ImageBuild.ConvertToIcon(global::TemuKJD.Properties.Resources.icon);

            if (!this.ShowIcon)
            {
                this.pbLogo.Visible = false;
                this.lbTitle.Location = new Point(this.pbLogo.Location.X, this.lbTitle.Location.Y);
            }

            if (this.ShowMaximizeBox)
            {
                if (this.WindowState == FormWindowState.Maximized)
                {
                    this.pbMaxBase.Visible = false;
                    this.pbNormalBase.Visible = true;
                }
                else
                {
                    this.pbMaxBase.Visible = true;
                    this.pbNormalBase.Visible = false;
                }
            }

            SetPanelVisible(this.TopLevel || DesignMode);
        }

        public void SetPanelVisible(bool visible)
        {
            if (visible)
            {
                this.Padding = new Padding(1);
                this.panel1.Visible = true;
            }
            else
            {
                this.Padding = new Padding(0);
                this.panel1.Visible = false;
            }
        }

        private void PictureBox2_Click(object sender, EventArgs e)
        {
            WindowState = FormWindowState.Minimized;
        }

        public virtual void PictureBox1_Click(object sender, EventArgs e)
        {
            //pictureBox3.Image?.Dispose();
            Close();
        }

        private Icon _iconx;
        public Icon Iconx
        {
            set
            {
                _iconx = value;
                if (_iconx == null) return;
                pbLogo.Image = _iconx.ToBitmap();
            }
        }

        private bool showMinimizedBox = true;
        [Browsable(true), Description("显示最小化按钮"), Category("自定义分组")]
        public bool ShowMinimizedBox
        {
            get
            {
                return showMinimizedBox;
            }
            set
            {
                this.showMinimizedBox = value;
            }
        }

        private bool showMaximizeBox = false;
        [Browsable(true), Description("显示最大化按钮"), Category("自定义分组")]
        public bool ShowMaximizeBox
        {
            get { return showMaximizeBox; }
            set
            {
                showMaximizeBox = value;
                if (showMaximizeBox)
                {
                    if (this.WindowState == FormWindowState.Maximized)
                    {
                        this.pbMaxBase.Visible = false;
                        this.pbNormalBase.Visible = true;
                    }
                    else
                    {
                        this.pbMaxBase.Visible = true;
                        this.pbNormalBase.Visible = false;
                    }
                }
                else
                {
                    this.pbMaxBase.Visible = false;
                    this.pbNormalBase.Visible = false;
                }
            }
        }

        public string TitleText
        {
            get
            {
                return Text;
            }
            set
            {
                lbTitle.Text = Text = value;
            }
        }
        private Point mouseOffset;//记录鼠标指针的坐标
        private bool isMouseDown;//记录鼠标左键是否按下
        private void Panel1_MouseMove(object sender, MouseEventArgs e)
        {
            if (isMouseDown && Dragable)
            {
                //获取鼠标的位置
                Point mousePos = MousePosition;
                mousePos.Offset(mouseOffset.X, mouseOffset.Y);
                Location = mousePos;
            }
        }

        private void Panel1_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                mouseOffset = new Point(-e.X, -e.Y);
                isMouseDown = true;
            }
        }

        private void Panel1_MouseUp(object sender, MouseEventArgs e)
        {
            isMouseDown = false;
        }

        private void PictureBox1_MouseHover(object sender, EventArgs e)
        {
            this.pbCloseBase.Image = global::TemuKJD.Properties.Resources.close_hover;
            this.Cursor = Cursors.Hand;

        }

        private void PictureBox1_MouseLeave(object sender, EventArgs e)
        {
            this.pbCloseBase.Image = global::TemuKJD.Properties.Resources.close;
            this.Cursor = Cursors.Default;

        }

        private void PictureBox2_MouseHover(object sender, EventArgs e)
        {
            this.pbMinBase.Image = global::TemuKJD.Properties.Resources.min_hover;
            this.Cursor = Cursors.Hand;

        }

        private void PictureBox2_MouseLeave(object sender, EventArgs e)
        {
            this.pbMinBase.Image = global::TemuKJD.Properties.Resources.min;
            this.Cursor = Cursors.Default;

        }

        public virtual void HideTitle()
        {
            this.panel1.Visible = false;
        }

        #region 窗体提交数据完成事件
        public event Action<object> SaveComplete;
        protected virtual void OnSaveComplete(object param)
        {
            this.SaveComplete?.Invoke(param);
        }
        public event Action<object, object> SaveCompleteWithDescribe;
        protected virtual void OnSaveComplete(object param, object describe)
        {
            this.SaveCompleteWithDescribe?.Invoke(param, describe);
        }
        #endregion

        private void pbNormalBase_Click(object sender, EventArgs e)
        {
            WindowState = FormWindowState.Normal;
            this.pbMaxBase.Visible = true;
            this.pbNormalBase.Visible = false;
        }

        private void pbNormalBase_MouseHover(object sender, EventArgs e)
        {
            this.pbNormalBase.Image = global::TemuKJD.Properties.Resources.normal_hover;
            this.Cursor = Cursors.Hand;
        }

        private void pbNormalBase_MouseLeave(object sender, EventArgs e)
        {
            this.pbNormalBase.Image = global::TemuKJD.Properties.Resources.normal;
            this.Cursor = Cursors.Default;
        }

        private void pbMaxBase_Click(object sender, EventArgs e)
        {
            WindowState = FormWindowState.Maximized;
            this.pbMaxBase.Visible = false;
            this.pbNormalBase.Visible = true;
        }

        private void pbMaxBase_MouseHover(object sender, EventArgs e)
        {
            this.pbMaxBase.Image = global::TemuKJD.Properties.Resources.max_hover;
            this.Cursor = Cursors.Hand;
        }

        private void pbMaxBase_MouseLeave(object sender, EventArgs e)
        {
            this.pbMaxBase.Image = global::TemuKJD.Properties.Resources.max;
            this.Cursor = Cursors.Default;
        }

        private void lbTitle_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                mouseOffset = new Point(-e.X, -e.Y);
                isMouseDown = true;
            }
        }

        private void lbTitle_MouseMove(object sender, MouseEventArgs e)
        {
            if (isMouseDown && Dragable)
            {
                var control = sender as Control;
                if (control == null)
                    return;

                //获取鼠标的位置
                Point mousePos = MousePosition;
                var x = mouseOffset.X;
                var y = mouseOffset.Y;
                while (control.Parent != null && control.Parent != this)
                {
                    x -= control.Location.X;
                    y -= control.Location.Y;
                    control = control.Parent;
                }
                mousePos.Offset(x, y);
                Location = mousePos;
            }
        }

        private void lbTitle_MouseUp(object sender, MouseEventArgs e)
        {
            isMouseDown = false;
        }
    }
}