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;
using LYFZ.WinAPI;
namespace LYFZ.ComponentLibrary
{
    /// <summary>
    /// 无边框四边阴影基窗体
    /// </summary>
    public partial class BaseShadowForm : BaseMotherForm
    {
        ShadowLayer layer = null;
        bool _isShadow = true;
        /// <summary>
        /// 是否开启四边阴影
        /// </summary>
        [DescriptionAttribute("是否开启四边阴影"), CategoryAttribute("自定义窗体属性"), DefaultValueAttribute(typeof(bool), "true")]
        public bool IsShadow
        {
            get { return _isShadow; }
            set { _isShadow = value; }
        }

        Rectangle _layerRel = new Rectangle(5,5,10,12);
        /// <summary>
        /// 在开启阴影效果时设置阴影位置和大小
        /// </summary>
         [DescriptionAttribute("在开启阴影效果时设置阴影位置和大小"), CategoryAttribute("自定义窗体属性")]
        public Rectangle LayerRel
        {
            get { return _layerRel; }
            set { _layerRel = value; }
        }

        public BaseShadowForm()
        {
            InitializeComponent();
        }

        //Show或Hide被调用时
        protected override void OnVisibleChanged(EventArgs e)
        {

            if (Visible)
            {
                //启用窗口淡入淡出
                if (!DesignMode)
                {
                    //淡入特效
                    // Win32.AnimateWindow(this.Handle, 150, Win32.AW_BLEND | Win32.AW_ACTIVATE);
                }
                //判断不是在设计器中
                if (!DesignMode && layer == null)
                {
                    if (IsShadow)
                    {

                        layer = new ShadowLayer(this);
                        layer.Difference_X = LayerRel.X;
                        layer.Difference_Y = LayerRel.Y;
                        layer.Difference_Width = LayerRel.Width;
                        layer.Difference_Height = LayerRel.Height;
                        if (this.IsReion && this.Width == 780 && this.Height == 580)
                        {
                            layer.Difference_X = 19;
                            layer.Difference_Y = 27;
                            layer.Difference_Width = 38;
                            layer.Difference_Height = 46;
                            layer.SetInit();
                        }
                        layer.Show(this);
                    }
                }
                base.OnVisibleChanged(e);
            }
            else
            {
                base.OnVisibleChanged(e);
                // Win32.AnimateWindow(this.Handle, 150, Win32.AW_BLEND | Win32.AW_HIDE);
            }
        }

        //窗体关闭时
        protected override void OnClosing(CancelEventArgs e)
        {
            base.OnClosing(e);
            //先关闭阴影窗体
            if (layer != null)
            {
                layer.Close();
                layer.Dispose();
            }
            //在Form_FormClosing中添加代码实现窗体的淡出
          //  Win32.AnimateWindow(this.Handle, 150, Win32.AW_BLEND | Win32.AW_HIDE);
        }

    }
}