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

namespace GcDevicePc.Controls
{
    [ToolboxBitmap(typeof(PrompBox))]
    public partial class PrompBox : UserControl
    {
        private bool _transparentBG = true;//是否使用透明
        private int _alpha = 125;//设置透明度
        private string _tipsInfo;//设置提示信息

        private SolidBrush fontBrush = new SolidBrush(Color.FromArgb(206, 94, 94, 94));

        public PrompBox()
        : this(125, true)
        {
        }

        public PrompBox(int Alpha, bool IsShowLoadingImage)
        {
            SetStyle(System.Windows.Forms.ControlStyles.Opaque, true);
            base.CreateControl();

            this._alpha = Alpha;
            if (IsShowLoadingImage)
            {
                
                PictureBox pictureBox_Loading = new PictureBox();
                pictureBox_Loading.BackColor = System.Drawing.Color.White;
                //pictureBox_Loading.Image = Image.FromFile("C:\\Users\\24042\\Pictures\\052124596426732.gif");
                pictureBox_Loading.Name = "pictureBox_Loading";
                pictureBox_Loading.Size = new System.Drawing.Size(48, 48);
                pictureBox_Loading.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize;
                Point Location = new Point(this.Location.X + (this.Width - pictureBox_Loading.Width) / 2-10, this.Location.Y + (this.Height - pictureBox_Loading.Height) / 2);//居中
                pictureBox_Loading.Location = Location;
                pictureBox_Loading.Anchor = AnchorStyles.None;
                this.Controls.Add(pictureBox_Loading);
                Invalidate();
            }
        }

        /// <summary>
        /// 显示遮罩层
        /// </summary>
        /// <param name="form">要显示的父窗体</param>
        public void ShowLoading(Form form)
        {
            try
            {
                // SetStyle(System.Windows.Forms.ControlStyles.Opaque, true);
                base.CreateControl();
                form.Controls.Add(this);
                this.Dock = DockStyle.Fill;
                this.BringToFront();
                this.Enabled = true;
                this.Visible = true;
                Refresh();
                Invalidate();

            }
            catch { }

        }

        /// <summary>
        /// 自定义绘制窗体
        /// </summary>
        /// <param name="e"></param>
        protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
        {
            float vlblControlWidth;
            float vlblControlHeight;

            Pen labelBorderPen;
            SolidBrush labelBackColorBrush;

            if (_transparentBG)
            {
                Color drawColor = Color.FromArgb(this._alpha, this.BackColor);
                labelBorderPen = new Pen(drawColor, 0);
                labelBackColorBrush = new SolidBrush(drawColor);
            }
            else
            {
                labelBorderPen = new Pen(this.BackColor, 0);
                labelBackColorBrush = new SolidBrush(this.BackColor);
            }
            base.OnPaint(e);
            vlblControlWidth = this.Size.Width;
            vlblControlHeight = this.Size.Height;
            e.Graphics.DrawRectangle(labelBorderPen, 0, 0, vlblControlWidth, vlblControlHeight);
            e.Graphics.FillRectangle(labelBackColorBrush, 0, 0, vlblControlWidth, vlblControlHeight);
            e.Graphics.DrawString(this._tipsInfo, new Font("宋体", 14), fontBrush, vlblControlWidth / 2+10, vlblControlHeight / 2);

        }


        protected override CreateParams CreateParams 
        {
            get
            {
                CreateParams cp = base.CreateParams;
                cp.ExStyle |= 0x00000020; //0x20; // 开启 WS_EX_TRANSPARENT,使控件支持透明
                return cp;
            }
        }


        [Category("PrompBox"), Description("是否使用透明,默认为True")]
        public bool TransparentBG
        {
            get
            {
                return _transparentBG;
            }
            set
            {
                _transparentBG = value;
                this.Invalidate();
            }
        }

        [Category("PrompBox"), Description("设置透明度")]
        public int Alpha
        {
            get
            {
                return _alpha;
            }
            set
            {
                _alpha = value;
                this.Invalidate();
            }
        }

        [Category("PrompBox"), Description("设置提示信息")]
        public string TipsInfo
        {
            get
            {
                return _tipsInfo;
            }
            set
            {
                _tipsInfo = value;
                this.Invalidate();
            }
        }
    }
}
