Sunji-posv-net/pos/POSV.Template/BaseUserControl.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using DevComponents.DotNetBar;
using System.ComponentModel.Design;

namespace POSV
{
    [ToolboxItem(false)]
    public partial class BaseUserControl : UserControl
    {
        private NLog.Logger logger = null;

        public BaseUserControl()
        {
            InitializeComponent();

            //减少闪烁
            SetStyles();

            
        }

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            if (this.DesignMode) return;

            logger = NLog.LogManager.GetLogger(GetType().FullName);
        }

        #region 减少闪烁
        private void SetStyles()
        {
            SetStyle(
                ControlStyles.UserPaint |
                ControlStyles.AllPaintingInWmPaint |
                ControlStyles.OptimizedDoubleBuffer |
                ControlStyles.ResizeRedraw |
                ControlStyles.DoubleBuffer , true);
            //强制分配样式重新应用到控件上
            UpdateStyles();
            base.AutoScaleMode = AutoScaleMode.None;
        }
        #endregion
        
        protected Font GetSystemFont(SystemFont fontSize)
        {
            Font result = Constant.DEFAULT_FONT;

            switch (fontSize)
            {
                case SystemFont.默认:
                    {
                        result = Constant.DEFAULT_FONT;
                    }
                    break;
                case SystemFont.正常:
                    {
                        result = Constant.NORMAL_FONT;
                    }
                    break;
                case SystemFont.小字:
                    {
                        result = Constant.SMALL_FONT;
                    }
                    break;
                case SystemFont.大字:
                    {
                        result = Constant.BIG_FONT;
                    }
                    break;
                
            }

            return result;
        }

        protected NLog.Logger LOGGER
        {
            get { return logger; }
        }

        protected void ShowMessage(LabelX label , string message)
        {
            if (this.IsDisposed || !this.IsHandleCreated)
            {
                // some exceptional condition:
                // handle in whatever way is appropriate for your app
                return;
            }


            LOGGER.Debug(message);

            this.Invoke(new Action(() => {
                label.Symbol = "\uf05a";
                label.SymbolColor = Color.RoyalBlue;
                label.ForeColor = SystemColors.ControlText;

                label.Text = message;
                label.Refresh();
            }));

        }

        protected void ShowMessage(LabelX label , string message , bool error)
        {
            if (this.IsDisposed || (!this.IsHandleCreated && !this.FindForm().IsHandleCreated))
            {
                // some exceptional condition:
                // handle in whatever way is appropriate for your app
                return;
            }

            LOGGER.Debug(message);

            this.Invoke(new Action(() => {
                label.Symbol = "\uf05a";
                label.SymbolColor = Color.RoyalBlue;
                label.ForeColor = SystemColors.ControlText;
                if (error)
                {
                    label.Symbol = "\uf05c";
                    label.SymbolColor = Color.Blue;
                    label.ForeColor = Color.Blue;
                }

                label.Text = message;
                label.Refresh();
            }));

        }


        protected new bool DesignMode
        {
            get
            {
                bool returnFlag = false;
                //#if DEBUG
                //                if (System.ComponentModel.LicenseManager.UsageMode == System.ComponentModel.LicenseUsageMode.Designtime)
                //                {
                //                    returnFlag = true;
                //                }
                //                else if (System.Diagnostics.Process.GetCurrentProcess().ProcessName.ToUpper().Equals("DEVENV"))
                //                {
                //                    returnFlag = true;
                //                }



                //#endif
                if (this.GetService(typeof(IDesignerHost)) != null || System.ComponentModel.LicenseManager.UsageMode == System.ComponentModel.LicenseUsageMode.Designtime)
                {
                    returnFlag = true;
                }
                else
                {
                    returnFlag = false;
                }


                return returnFlag;
            }
        }


        protected virtual void OnInputGotFocus(object sender , EventArgs e)
        {
            //触摸屏模式下自动关闭虚拟键盘
            IntPtr hwnd = WindowsAPI.FindWindow("IPTip_Main_Window" , null);
            if (hwnd != IntPtr.Zero)
            {
                WindowsAPI.SendMessage(hwnd , WindowsAPI.WM_SYSCOMMAND , WindowsAPI.SC_CLOSE , 0);
            }
        }
    }
}