using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using ICSharpCode.Core;

namespace Mesnac.PlugIn.Pad
{
    /// <summary>
    /// 面板描述符类
    /// </summary>
    public class PadDescriptor : IDisposable
    {
        #region 定义变量

        private Codon codon;        //密码子
        private IPadContent padContent;     //面板对象
        private bool padContentCreated;     //面板是否创建

        #endregion

        #region 构造方法

        /// <summary>
        /// 构造方法
        /// </summary>
        /// <param name="codon"></param>
        public PadDescriptor(Codon codon)
        {
            this.codon = codon;
        }

        #endregion

        #region 定义属性
        /// <summary>
        /// 面板ID
        /// </summary>
        public string ID
        {
            get { return this.codon.Properties["id"]; }
        }
        /// <summary>
        /// 面板标题
        /// </summary>
        public string Title
        {
            get { return this.codon.Properties["title"]; }
        }
        /// <summary>
        /// 面板图标，如果没有定义图标，允许为空
        /// </summary>
        public string Icon
        {
            get { return this.codon.Properties["icon"]; }
        }
        /// <summary>
        /// 面板类别（用于菜单分类）
        /// </summary>
        public string Category
        {
            get { return this.codon.Properties["category"]; }
        }
        /// <summary>
        /// 菜单快捷键
        /// </summary>
        public string Shortcut
        {
            get { return this.codon.Properties["shortcut"]; }
        }
        /// <summary>
        /// 关联类
        /// </summary>
        public string Class
        {
            get { return this.codon.Properties["class"]; }
        }

        public string DockState
        {
            get { return this.codon.Properties["dockState"]; }
        }
        /// <summary>
        /// 是否显示
        /// </summary>
        public bool IsVisible
        {
            get 
            { 
                string isVisible = this.codon.Properties["isVisible"];
                if (!String.IsNullOrEmpty(isVisible))
                {
                    bool result = true;
                    if (bool.TryParse(isVisible, out result))
                    {
                        return result;
                    }
                }

                return true;
            }
        }
        /// <summary>
        /// 获取焦点
        /// </summary>
        public bool HasFocus
        {
            //get { return (this.padContent != null) ? this.padContent.Control.ContainsFocus : false; }
            get
            {
                if (this.padContent != null && this.padContent.Control != null)
                {
                    return this.padContent.Control.ContainsFocus;
                }
                return false;
            }
        }
        /// <summary>
        /// 获取面板对象
        /// </summary>
        public IPadContent PadContent
        {
            get { this.CreatePad(); return this.padContent; }
        }

        #endregion

        #region 定义方法

        /// <summary>
        /// 创建面板
        /// </summary>
        public void CreatePad()
        {
            if (!this.padContentCreated)
            {
                this.padContentCreated = true;
                this.padContent = this.codon.AddIn.CreateObject(this.Class) as IPadContent;
            }
        }
        /// <summary>
        /// 面板上移
        /// </summary>
        public void BringPadToFront()
        {
            this.CreatePad();
            if (this.padContent == null) return;
            //触发事件
            if (BringPadToFrontEvent != null)
                BringPadToFrontEvent(this);
        }
        /// <summary>
        /// 重绘面板
        /// </summary>
        public void RedrawConent()
        {
            if (this.padContent != null)
            {
                this.padContent.RedrawContent();
            }
        }
        /// <summary>
        /// 释放面板对象
        /// </summary>
        public void Dispose()
        {
            if (this.padContent != null)
            {
                this.padContent.Dispose();
                this.padContent = null;
            }
        }

        #endregion

        #region 定义委托和事件

        public delegate void BringPadToFrontHnd(PadDescriptor padDesc);

        public static event BringPadToFrontHnd BringPadToFrontEvent;

        #endregion
    }
}