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;
using Lskj.Main.Properties;

namespace Lskj.Main
{
    /// <summary>
    /// 菜单按钮
    /// </summary>
    public partial class Menu_Item_Button : UserControl
    {
        private static Button defaultButton;
        private ButtonHoverEventHandler hoverEvent;
        public delegate void ButtonHoverEventHandler(Button before, Button after);

        public Menu_Item_Button()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 设置默认选中的Button
        /// </summary>
        public void SetDefaultSelectMenu(Menu_Item_Button item)
        {
            defaultButton = item.btnDesktop;
        }

        /// <summary>
        /// 设置按钮状态
        /// </summary>
        /// <param name="state"></param>
        public void SetButtonState(MenuButtonState state)
        {
            switch (state)
            {
                case MenuButtonState.defaultState:
                    this.btnDesktop.BackgroundImage = null;
                    break;
                case MenuButtonState.selectState:
                    this.btnDesktop.BackgroundImage = Resources.left_default_xj;
                    break;
            }
        }

        /// <summary>
        /// 注册设置事件
        /// </summary>
        /// <param name="hoverEvent"></param>
        public void SetHoverEvent(ButtonHoverEventHandler hoverEvent,MenuEventType eventType)
        {
            this.hoverEvent = hoverEvent;
            switch (eventType)
            {                
                case MenuEventType.MouseClickEvent:
                    this.btnDesktop.MouseMove += new MouseEventHandler(btnDesktop_MouseMove);
                    this.btnDesktop.MouseClick += new MouseEventHandler(this.btnDesktio_MouseEvent);
                    break;
                case MenuEventType.MouseHoverEvent:
                default:
                    this.btnDesktop.MouseMove += new MouseEventHandler(this.btnDesktio_MouseEvent);
                    break;
            }
        }

        public Button GetButton()
        {
            return this.btnDesktop;
        }

        
        private void btnDesktop_MouseMove(object sender, MouseEventArgs e)
        {
            this.Cursor = Cursors.Hand;
        }
        /// <summary>
        /// 切换菜单
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnDesktio_MouseEvent(object sender, MouseEventArgs e)
        {
            Button button = sender as Button;
            if (button != null)
            {
                if (defaultButton != null)
                    defaultButton.BackgroundImage = null;
                button.BackgroundImage = Resources.left_default_xj;
            }


            if (defaultButton != button)
            {
                if (hoverEvent != null)
                {
                    this.hoverEvent(defaultButton, button);
                }
                defaultButton = button;
            }
        }
    }
    public enum MenuButtonState
    {
        defaultState,
        selectState
    }
    public enum MenuEventType
    {
        MouseHoverEvent = 0,
        MouseClickEvent = 1
    }
}