// ***********************************************************************
// Assembly         : HZH_Controls
// Created          : 2019-09-10
//
// ***********************************************************************
// <copyright file="UCAlarmLamp.cs">
//     Copyright by Huang Zhenghui(黄正辉) All, QQ group:568015492 QQ:623128629 Email:623128629@qq.com
// </copyright>
//
// Blog: https://www.cnblogs.com/bfyx
// GitHub：https://github.com/kwwwvagaa/NetWinformControl
// gitee：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
//
// If you use this code, please keep this note.
// ***********************************************************************
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.ComponentModel;

namespace HZH_Controls.Controls
{
    /// <summary>
    /// Class UCAlarmLamp.
    /// Implements the <see cref="System.Windows.Forms.UserControl" />
    /// </summary>
    /// <seealso cref="System.Windows.Forms.UserControl" />
    public class UCAlarmLamp : UserControl
    {
        /// <summary>
        /// The lamp color
        /// </summary>
        private Color[] lampColor = new Color[] { Color.FromArgb(255, 77, 59) };

        /// <summary>
        /// Gets or sets the color of the lamp.
        /// </summary>
        /// <value>The color of the lamp.</value>
        [Description("灯颜色，当需要闪烁时，至少需要2个及以上颜色，不需要闪烁则至少需要1个颜色"), Category("自定义")]
        public Color[] LampColor
        {
            get { return lampColor; }
            set
            {
                if (value == null || value.Length <= 0)
                    return;
                lampColor = value;
                Refresh();
            }
        }

        /// <summary>
        /// The lampstand
        /// </summary>
        private Color lampstand = Color.FromArgb(105, 105, 105);

        /// <summary>
        /// Gets or sets the lampstand.
        /// </summary>
        /// <value>The lampstand.</value>
        [Description("灯座颜色"), Category("自定义")]
        public Color Lampstand
        {
            get { return lampstand; }
            set { lampstand = value; }
        }

        /// <summary>
        /// The twinkle speed
        /// </summary>
        private int twinkleSpeed = 0;

        /// <summary>
        /// Gets or sets the twinkle speed.
        /// </summary>
        /// <value>The twinkle speed.</value>
        [Description("闪烁间隔时间（毫秒），当为0时不闪烁"), Category("自定义")]
        public int TwinkleSpeed
        {
            get { return twinkleSpeed; }
            set
            {
                if (value < 0)
                    return;
                twinkleSpeed = value;
                if (value == 0 || lampColor.Length <= 1)
                {
                    timer.Enabled = false;
                }
                else
                {
                    intColorIndex = 0;
                    timer.Interval = value;
                    timer.Enabled = true;
                }
                Refresh();
            }
        }
        /// <summary>
        /// The timer
        /// </summary>
        Timer timer;
        /// <summary>
        /// The int color index
        /// </summary>
        int intColorIndex = 0;
        /// <summary>
        /// The m rect working
        /// </summary>
        Rectangle m_rectWorking;
        /// <summary>
        /// Initializes a new instance of the <see cref="UCAlarmLamp" /> class.
        /// </summary>
        public UCAlarmLamp()
        {
            this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
            this.SetStyle(ControlStyles.DoubleBuffer, true);
            this.SetStyle(ControlStyles.ResizeRedraw, true);
            this.SetStyle(ControlStyles.Selectable, true);
            this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
            this.SetStyle(ControlStyles.UserPaint, true);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;
            this.SizeChanged += UCAlarmLamp_SizeChanged;
            this.Size = new Size(50, 50);
            timer = new Timer();
            timer.Interval = 200;
            timer.Tick += timer_Tick;
        }

        /// <summary>
        /// Handles the SizeChanged event of the UCAlarmLamp control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
        void UCAlarmLamp_SizeChanged(object sender, EventArgs e)
        {
            m_rectWorking = new Rectangle(10, 0, this.Width - 20, this.Height);
        }
        /// <summary>
        /// Handles the Tick event of the timer control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
        void timer_Tick(object sender, EventArgs e)
        {
            intColorIndex++;
            if (intColorIndex >= lampColor.Length)
                intColorIndex = 0;
            Refresh();
        }
        /// <summary>
        /// 引发 <see cref="E:System.Windows.Forms.Control.Paint" /> 事件。
        /// </summary>
        /// <param name="e">包含事件数据的 <see cref="T:System.Windows.Forms.PaintEventArgs" />。</param>
        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);
            var g = e.Graphics;
            g.SetGDIHigh();

            Color c1 = lampColor[intColorIndex];
            GraphicsPath path = new GraphicsPath();
            path.AddLine(new Point(m_rectWorking.Left, m_rectWorking.Bottom), new Point(m_rectWorking.Left, m_rectWorking.Top + m_rectWorking.Width));
            path.AddArc(new Rectangle(m_rectWorking.Left, m_rectWorking.Top, m_rectWorking.Width, m_rectWorking.Width), 180f, 180f);
            path.AddLine(new Point(m_rectWorking.Right, m_rectWorking.Top + m_rectWorking.Width), new Point(m_rectWorking.Right, m_rectWorking.Bottom));
            path.CloseAllFigures();
            g.FillPath(new SolidBrush(c1), path);

            g.FillRectangle(new SolidBrush(lampstand), new Rectangle(5, m_rectWorking.Bottom - 19, this.Width - 10, 10));
            g.FillRectangle(new SolidBrush(lampstand), new Rectangle(0, m_rectWorking.Bottom - 10, this.Width, 10));
        }
    }
}