using Shared;
using HDL_ON.UI.CSS;
using System;
using System.Collections.Generic;
using System.Text;

namespace HDL_ON.Stan
{
    /// <summary>
    /// <para>左右滑动的进度条控件(高度为54 左右间距为20)</para>
    /// <para>如果是加在PageLayout里面的话,加入父控件之后,请调用BindPageLayout()</para>
    /// </summary>
    public class SeekBarImageControl : DiyImageSeekBar
    {
        #region ■ 变量声明___________________________

        /// <summary>
        /// 进度值改变,如果要设置初始进度值,此变量要在设置初始进度值之前进行设置(第一个参数0:滑动的时候,1:手指弹起的时候)
        /// </summary>
        public Action<int, int> ProgressChangedEvent = null;
        /// <summary>
        /// 进度条可用时的背景色
        /// </summary>
        private uint ProgressBarEnableColor = 0;
        /// <summary>
        /// 进度条不可用时的背景色(默认灰色)
        /// </summary>
        public uint ProgressBarUnEnableColor = 0xffe8e8e8;
        /// <summary>
        /// 当前可用状态
        /// </summary>
        private bool nowEnable = true;
        /// <summary>
        /// 控件能否使用
        /// </summary>
        public new bool Enable
        {
            set
            {
                //状态没有改变
                if (nowEnable == value) { return; }
                nowEnable = value;

                this.IsClickable = value;
                if (value == true)
                {
                    //原来的颜色
                    base.ProgressBarColor = ProgressBarEnableColor;
                }
                else
                {
                    //灰色
                    base.ProgressBarColor = ProgressBarUnEnableColor;
                }
            }
        }

        /// <summary>
        /// 进度条颜色
        /// </summary>
        public new uint ProgressBarColor
        {
            set
            {
                ProgressBarEnableColor = value;
                base.ProgressBarColor = value;
            }
        }

        private int m_SeekBarPadding = Application.GetRealWidth(20);
        /// <summary>
        /// 进度条与左右两边的边框的边距(重写底层属性)
        /// </summary>
        public new int SeekBarPadding
        {
            set
            {
                m_SeekBarPadding = value;
                base.SeekBarPadding = value;
            }
            get
            {
                return m_SeekBarPadding;
            }
        }

        private int m_MaxValue = 0;
        /// <summary>
        /// 进度条最大值(重写底层属性)
        /// </summary>
        public new int MaxValue
        {
            set
            {
                m_MaxValue = value;
                base.MaxValue = value;
            }
        }

        private int m_MinValue = 0;
        /// <summary>
        /// 进度条最小值(重写底层属性)
        /// </summary>
        public new int MinValue
        {
            set
            {
                m_MinValue = value;
                base.MinValue = value;
            }
        }
        /// <summary>
        /// 上方显示的文本
        /// </summary>
        private Button btnTopView = null;
        /// <summary>
        /// 绑定PageLayout，事件冲突,需要特殊处理
        /// </summary>
        private PageLayout pageLayoutBind = null;

        #endregion

        #region ■ 初始化_____________________________

        /// <summary>
        /// <para>左右滑动的进度条控件(高度为54 左右间距为20)</para>
        /// <para>如果是加在PageLayout里面的话,加入父控件之后,请调用BindPageLayout()</para>
        /// </summary>
        /// <param name="i_width">宽度,非真实值,实际宽度会加上左右间距</param>
        public SeekBarImageControl(int i_width)
        {
            this.ProgressChangeDelayTime = 0;

            this.Width = Application.GetRealWidth(i_width) + m_SeekBarPadding * 2;
            this.Height = Application.GetRealHeight(54);
            //圆球的高度
            this.ThumbImageHeight = Application.GetRealHeight(54);
            this.ThumbImagePath = "Public/ThumbImage.png";
            //进度条的高度度
            this.SeekBarViewHeight = Application.GetRealHeight(8);
            //上方是否显示文本
            this.IsProgressTextShow = false;
            this.Gravity = Gravity.CenterHorizontal;
            //进度条颜色
            this.ProgressBarColor = CSS_Color.MainColor;
            //左右边距(最好不要改这个数值,一旦改了,可能会干扰到其他界面)
            this.SeekBarPadding = Application.GetRealWidth(20);

            //进度条值改变事件
            this.OnProgressChangedEvent += this.MyProgressChangedEvent;
            //手指弹起事件
            this.OnStopTrackingTouchEvent += this.MyStopTrackingTouchEvent;
        }

        #endregion

        #region ■ 事件_______________________________

        /// <summary>
        /// 进度条值改变事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="value"></param>
        private void MyProgressChangedEvent(object sender, int value)
        {
            if (this.ProgressChangedEvent == null)
            {
                this.OnProgressChangedEvent -= this.MyProgressChangedEvent;
                return;
            }

            this.ProgressChangedEvent(0, value);
        }

        /// <summary>
        /// 手指弹起事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="value"></param>
        private void MyStopTrackingTouchEvent(object sender, int value)
        {
            if (this.ProgressChangedEvent == null)
            {
                this.OnStopTrackingTouchEvent -= this.MyStopTrackingTouchEvent;
                return;
            }
            if (this.pageLayoutBind != null && this.pageLayoutBind.ScrollEnabled == false)
            {
                //事件冲突,特殊处理,让pageLayout还原滑动
                this.pageLayoutBind.ScrollEnabled = true;
            }
            //弹起事件不需要判断时间
            this.ProgressChangedEvent(1, value);
        }

        /// <summary>
        /// 手指开始点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="value"></param>
        private void MyStartTrackingTouchEvent(object sender, bool value)
        {
            if (this.pageLayoutBind != null && this.pageLayoutBind.ScrollEnabled == true)
            {
                //事件冲突,特殊处理,让pageLayout不能滑动
                this.pageLayoutBind.ScrollEnabled = false;
            }
        }

        #endregion

        #region ■ 自定义上方显示文本_________________

        /// <summary>
        /// 在上方显示自定义文本
        /// </summary>
        /// <param name="i_width">宽度(真实值)</param>
        /// <param name="textSize">文字大小</param>
        /// <param name="textColor">文字颜色</param>
        public void ShowCustomTextView(int i_width, int textSize, uint textColor)
        {
            if (this.btnTopView != null) { return; }

            int contrHeight = Application.GetRealHeight(24);
            this.btnTopView = new Button();
            btnTopView.Width = i_width;
            btnTopView.Height = contrHeight;
            btnTopView.TextColor = textColor;
            btnTopView.TextSize = textSize;
            btnTopView.TextAlignment = TextAlignment.Center;
            btnTopView.Y = this.Y - contrHeight + Application.GetRealHeight(20);
            //初始化时,X轴可以不用理会

            this.Parent.AddChidren(btnTopView);
        }

        /// <summary>
        /// 设置自定义文本信息
        /// </summary>
        /// <param name="i_text"></param>
        public void SetCustomText(string i_text)
        {
            if (this.btnTopView == null) { return; }

            this.btnTopView.Text = i_text;
            //滑条最左边的距离
            int XX = this.X + this.m_SeekBarPadding;
            //当前滑条所在的大致百分比
            int tempValue = this.Progress - this.m_MinValue;
            if (tempValue < 0) { tempValue = 0; }
            decimal persent = (decimal)tempValue / (this.m_MaxValue - this.m_MinValue);
            //当前滑条所在的大致位置
            XX += (int)((this.Width - this.m_SeekBarPadding * 2) * persent);
            //因为要居中,所以减掉自定义控件的宽度的一般
            XX = XX - this.btnTopView.Width / 2;

            this.btnTopView.X = XX;
        }

        #endregion

        #region ■ 一般方法___________________________

        /// <summary>
        /// 绑定PageLayout
        /// </summary>
        public void BindPageLayout()
        {
            //获取PageLayout
            this.pageLayoutBind = this.GetParentPageLayout();
            if (this.pageLayoutBind == null) { return; }

            this.OnStartTrackingTouchEvent -= this.MyStartTrackingTouchEvent;
            this.OnStartTrackingTouchEvent += this.MyStartTrackingTouchEvent;
        }

        /// <summary>
        /// 获取父控件的PageLayout
        /// </summary>
        /// <returns></returns>
        private PageLayout GetParentPageLayout()
        {
            ViewGroup viewGroup = this.Parent;
            while (true)
            {
                if (viewGroup == null) { return null; }
                else if (viewGroup is PageLayout)
                {
                    return (PageLayout)viewGroup;
                }
                viewGroup = viewGroup.Parent;
            }
        }

        /// <summary>
        /// 控件摧毁
        /// </summary>
        public override void RemoveFromParent()
        {
            this.pageLayoutBind = null;
            this.ProgressChangedEvent = null;

            base.RemoveFromParent();
        }

        #endregion
    }
}