fbase.cs

基于C/S的医疗卫生管理系统

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Text;
using System.Windows.Forms;
using System.Collections;

using Qeb.Support.UI;
using Qeb.Support.Common;

namespace Qeb.Control
{
    public partial class FBase : Form
    {
        /// <summary>
        /// 消息处理者代理
        /// </summary>
        protected UIMessageEventHandler m_MsgEventHandler;
        private Hashtable m_MsgId = new Hashtable();

        //入口菜单ID
        private string m_MenuId = "";

        private bool m_ShowGradient = false;
        //private Color m_StartColor = Color.White;
        //private Color m_EndColor = Color.LightSteelBlue;
        //private Color m_StartColor = Color.FromArgb(196, 219, 249);//word  title
        //private Color m_EndColor = Color.FromArgb(102, 144, 224);
        private Color m_StartColor = Color.FromArgb(200, 223, 251);
        private Color m_EndColor = Color.FromArgb(125, 165, 224);
        private LinearGradientMode m_LinearGradientMode = LinearGradientMode.Horizontal;
        
        //private Brush m_BaseBackground = null;

        [Description("渐变色开始颜色"), Category("窗体背景")] 
        public Color StartColor
        {
            get { return m_StartColor; }
            set { m_StartColor = value; }
        }

        [Description("渐变色终止颜色"), Category("窗体背景")] 
        public Color EndColor
        {
            get { return m_EndColor; }
            set { m_EndColor = value; }
        }

        [Description("渐变色绘制方向"), Category("窗体背景")] 
        public LinearGradientMode LinearGradientMode
        {
            get { return m_LinearGradientMode; }
            set { m_LinearGradientMode = value; }
        }
        [Description("是否绘制渐变色，启用此项窗体背景图和背景将失效"), Category("窗体背景")] 
        public bool ShowGradient
        {
            get { return m_ShowGradient; }
            set
            {
                m_ShowGradient = value;
            }
        }

        public FBase()
        {
            InitializeComponent();
            this.SetStyle(ControlStyles.ResizeRedraw, true);

            m_MsgEventHandler += new UIMessageEventHandler(ProcessUIMessage);

        }

        protected override void OnPaintBackground(System.Windows.Forms.PaintEventArgs pevent)
        {
            if (!m_ShowGradient)
            {
                base.OnPaintBackground(pevent);
            }
            else
            {
                if (this.Disposing) return;
                if (ClientRectangle.IsEmpty) return;

                LinearGradientBrush linearGradientBrush = new LinearGradientBrush(ClientRectangle, m_StartColor, m_EndColor, m_LinearGradientMode);

                pevent.Graphics.FillRectangle(linearGradientBrush, ClientRectangle);
                pevent.Graphics.Flush();
                linearGradientBrush.Dispose();
            }
        }

        private void FBase_FormClosed(object sender, FormClosedEventArgs e)
        {
            //取消在MDI窗体中的注册
            if (this.MdiParent != null)
            {
                try
                {
                    if (!string.IsNullOrEmpty(m_MenuId))
                        ((IMainForm)this.MdiParent).UNRegChildForm(m_MenuId);
                }
                catch(Exception ex)
                {
                    System.Diagnostics.Debug.WriteLine("UNRegChildForm出错："+ex.ToString());
                    AppError err = new AppError(ex.Message, "UNRegChildForm", this.GetType(), ex);
                    AppLog.Add(err);
                }                
            }

            //取消消息注册
            this.UnSubscribeEvent();
        }

        //消息订阅
        protected int SubscribeEvent(string msgId)
        {
            if (msgId == null || msgId.Trim() == "")
                return -1;

            m_MsgId.Add(msgId, null);
            return UIMessageManager.SubscribeEvent(msgId, this, this.m_MsgEventHandler);
        }

        //取消消息订阅
        private void UnSubscribeEvent()
        {
            foreach(string key in m_MsgId.Keys)
            {
                UIMessageManager.UnSubscribeEvent(key, this.m_MsgEventHandler);
            }
            m_MsgId.Clear();
        }

        //取消消息订阅
        protected void UnSubscribeEvent(string msgId)
        {
            if (m_MsgId.Contains(msgId))
            {
                UIMessageManager.UnSubscribeEvent(msgId, this.m_MsgEventHandler);
                m_MsgId.Remove(msgId);
            }
        }

        private void FBase_Load(object sender, EventArgs e)
        {
            m_MsgEventHandler += new UIMessageEventHandler(ProcessUIMessage);
        }

        #region 消息处理
        /// <summary>
        /// 消息处理
        /// </summary>
        /// <param name="messageId"></param>
        /// <param name="e"></param>
        public virtual void ProcessUIMessage(string messageId, UIMessageEventArgs e)
        {

        }
        #endregion

        public string MenuId 
        {
            get { return m_MenuId; }
            set { m_MenuId = value; }
        }
    }
}