RaUI/Source/ryControls/Controls/TextBoxEx2.cs

using ryCommon;
using System;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;

namespace ryControls
{
    /// <summary>
    /// 美化文本框控件
    /// </summary>
    [DefaultEvent("TextChanged2")]
    public partial class TextBoxEx2 : UserControl
    {
        /// <summary>
        /// 文本变化时激发
        /// </summary>
        [Description("文本变化时激发")]
        public event EventHandler TextChanged2;
        /// <summary>
        /// 文本变化时激发
        /// </summary>
        [Description("文本变化时激发")]
        public new event EventHandler TextChanged;
        /// <summary>
        /// 双击时激发
        /// </summary>
        [Description("双击时激发")]
        public new event EventHandler DoubleClick;
        /// <summary>
        /// 
        /// </summary>
        public TextBoxEx2()
        {
            InitializeComponent();
            ChangeSize();
            txtInfo.Font = Font;
        }
        

        private void ChangeSize()
        {
            txtInfo.Left = 4;
            txtInfo.Width = base.Width - 8;
            if(Multiline)
            {
                txtInfo.Height = Height - 8;
            }
            if (txtInfo.Height < Height)
            {
                txtInfo.Top = (Height - txtInfo.Height) / 2;
            }
            else
            {
                txtInfo.Top = 1;
                if (!Multiline)
                {
                    Height = txtInfo.Height + 2;
                }
            }
            this.Refresh();
        }
        private void TextBoxEx2_Paint(object sender, PaintEventArgs e)
        {
            e.Graphics.DrawRectangle(new Pen(SkinHelp.DefalutBorderColor), new Rectangle(0, 0, this.Width - 1, this.Height - 1));
        }

        private void TextBoxEx2_Resize(object sender, EventArgs e)
        {
            ChangeSize();
        }
        private bool _OnlyNumeric = false;
        /// <summary>
        /// 是否只能输入数字
        /// </summary>
        public bool OnlyNumeric
        {
            get { return _OnlyNumeric; }
            set { _OnlyNumeric = value;if (value) { txtInfo.Text = txtInfo.Text.ToDouble().ToString(); } }
        }
        /// <summary>
        /// 是否多行
        /// </summary>
        public bool Multiline
        {
            get { return txtInfo.Multiline; }
            set { txtInfo.Multiline = value; txtInfo.ScrollBars = System.Windows.Forms.ScrollBars.Vertical; }
        }
        /// <summary>
        /// 是否在显示不下时换行
        /// </summary>
        public bool WordWrap
        {
            get { return txtInfo.WordWrap; }
            set { txtInfo.WordWrap = value; }
        }
        /// <summary>
        /// 最大长度
        /// </summary>
        public int MaxLength
        {
            get { return txtInfo.MaxLength; }
            set { txtInfo.MaxLength = value; }
        }
        /// <summary>
        /// 
        /// </summary>
        public System.Windows.Forms.HorizontalAlignment TextAlign
        {
            get { return txtInfo.TextAlign; }
            set { txtInfo.TextAlign = value; }
        }
        /// <summary>
        /// 背景颜色
        /// </summary>

        [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
        public override Color BackColor
        {
            get { return txtInfo.BackColor; }
            set { txtInfo.BackColor = value; base.BackColor = value; }
        }
        /// <summary>
        /// 右键菜单
        /// </summary>
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
        public override ContextMenuStrip ContextMenuStrip
        {
            get { return txtInfo.ContextMenuStrip; }
            set { txtInfo.ContextMenuStrip = value; base.ContextMenuStrip = value; }
        }
        /// <summary>
        /// 字体颜色
        /// </summary>
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
        public override Color ForeColor
        {
            get { return txtInfo.ForeColor; }
            set { txtInfo.ForeColor = value; base.ForeColor = value; }
        }
        /// <summary>
        /// 选择的开始位置
        /// </summary>
        [Browsable(false)]
        public int SelectionStart
        {
            get { return txtInfo.SelectionStart; }
            set { txtInfo.SelectionStart = value; }
        }
        /// <summary>
        /// 选择的长度
        /// </summary>
        [Browsable(false)]
        public int SelectionLength
        {
            get { return txtInfo.SelectionLength; }
            set { txtInfo.SelectionLength = value; }
        }
        /// <summary>
        /// 选择的文本
        /// </summary>
        [Browsable(false)]
        public string SelectedText
        {
            get { return txtInfo.SelectedText; }
            set {
                isProcUse = true;
                if (_text == "")
                {
                    txtInfo.Text = value;
                }
                else
                {
                    txtInfo.SelectedText = value;
                }
                _text = txtInfo.Text;
                if (_text == "")
                {
                    EmptyShow();
                }
                else
                {
                    HaveTextShow(); txtInfo.Text = _text;
                }
                isProcUse = false;
            }
        }
        private string _ToolTip = "";
        /// <summary>
        /// 提示文本
        /// </summary>
        [Browsable(true)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible), Editor("System.ComponentModel.Design.MultilineStringEditor, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", typeof(System.Drawing.Design.UITypeEditor))]
        public string ToolTip
        {
            get { return _ToolTip; }
            set { _ToolTip = value;toolTip1.SetToolTip(this, _ToolTip); toolTip1.SetToolTip(txtInfo, _ToolTip); }
        }
        /// <summary>
        /// 选择全部
        /// </summary>
        [Browsable(false)]
        public void SelectAll()
        {
            txtInfo.SelectAll();
        }
        /// <summary>
        /// 密码
        /// </summary>
        public char PasswordChar
        {
            get { return txtInfo.PasswordChar; }
            set { txtInfo.PasswordChar = value; }
        }
        /// <summary>
        /// 是否只读
        /// </summary>
        public bool ReadOnly
        {
            get { return txtInfo.ReadOnly; }
            set { txtInfo.ReadOnly = value; }
        }
        private void TextBoxEx2_FontChanged(object sender, EventArgs e)
        {
            txtInfo.Font = this.Font;
        }
        /// <summary>
        /// 
        /// </summary>
        /// <param name="e"></param>
        protected override void OnKeyDown(KeyEventArgs e)
        {
            base.OnKeyDown(e);
        }
        private string _EmptyText = "";
        /// <summary>
        /// 文本为空时的显示效果
        /// </summary>
        public void EmptyShow()
        {
            if (_text == "")
            {
                if (!txtInfo.Focused)
                {
                    txtInfo.Font = Font;
                    txtInfo.ForeColor = Color.FromArgb(175, 185, 200);
                    isProcUse = true; txtInfo.Text = EmptyText; isProcUse = false;
                }
                else
                { HaveTextShow(); txtInfo.Text = ""; }
            }
        }
        private Font _font = new Font("宋体", 9);
        /// <summary>
        /// 字体
        /// </summary>
        public override Font Font
        {
            get
            {
                return _font;
            }

            set
            {
                _font = value;
                txtInfo.Font = value;
            }
        }
        /// <summary>
        /// 有内容时的显示效果
        /// </summary>
        private void HaveTextShow()
        {
            txtInfo.Font = Font;
            txtInfo.ForeColor = Color.Black;
        }
        /// <summary>
        /// 当文本框为空时,显示的内容。
        /// </summary>
        [Description("当文本框为空时,显示的内容。")]
        public string EmptyText
        {
            get { return _EmptyText; }
            set
            {
                _EmptyText = value;
                EmptyShow();
            }
        }
        private string _text = "";
        /// <summary>
        /// 
        /// </summary>
        [Browsable(true)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
        public override string Text
        {
            get
            {
                return _text;
            }

            set
            {
                _text = value;
                if (_text == "")
                {
                    EmptyShow();
                }
                else
                {
                    HaveTextShow(); txtInfo.Text = _text;
                }
                //txtInfo.SelectionStart = 0; txtInfo.SelectionLength = 0;
            }
        }
        private void TxtInfo_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Control && e.KeyCode ==Keys.A)
            {
                txtInfo.SelectAll();
            }
            base.OnKeyDown(e);
        }
        /// <summary>
        /// 选择文本框中的文本范围
        /// </summary>
        /// <param name="start">文本框中当前选定文本的第一个字符的位置。</param>
        /// <param name="length">要选择的字符数</param>
        public void Select(int start, int length)
        {
            txtInfo.Select(start, length);
        }
        private void TxtInfo_DoubleClick(object sender, EventArgs e)
        {
            DoubleClick?.Invoke(this, new EventArgs());
        }

        private void TxtInfo_TextChanged(object sender, EventArgs e)
        {
            if (isProcUse) { return; }
            Text = txtInfo.Text;
            TextChanged2?.Invoke(this, new EventArgs());
            TextChanged?.Invoke(this, new EventArgs());
            base.OnTextChanged(e);
        }

        private void TxtInfo_Click(object sender, EventArgs e)
        {
            if (OnlyNumeric)
            {
                txtInfo.SelectAll();
                return;
            }
            base.OnClick(e);
        }

        private void TxtInfo_MouseClick(object sender, MouseEventArgs e)
        {
            base.OnMouseClick(e);
        }

        private void TxtInfo_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (OnlyNumeric)
            {
                if ((e.KeyChar <48 || e.KeyChar > 57) && e.KeyChar != 8 && e.KeyChar != 13 && e.KeyChar != 46)
                {
                    e.Handled = true;
                    return;
                }
                if (e.KeyChar == 46 && txtInfo.Text.IndexOf(".") >= 0) { e.Handled = true;return; }
            }
            base.OnKeyPress(e);
        }

        private void TxtInfo_KeyUp(object sender, KeyEventArgs e)
        {
            base.OnKeyUp(e);
        }
        private bool isProcUse = false;
        private void TxtInfo_Enter(object sender, EventArgs e)
        {
            if (OnlyNumeric)
            {
                txtInfo.SelectAll();
                return;
            }
            HaveTextShow();
            if (Text == "") { txtInfo.Text = ""; }
            base.OnEnter(e);
        }

        private void TextBoxEx2_Enter(object sender, EventArgs e)
        {
            txtInfo.Focus();
        }

        private void TxtInfo_MouseDown(object sender, MouseEventArgs e)
        {
            base.OnMouseDown(e);
        }

        private void TextBoxEx2_Load(object sender, EventArgs e)
        {
            EmptyShow();
        }

        private void TxtInfo_Leave(object sender, EventArgs e)
        {
            if (Text == "")
            {
                EmptyShow();
            }
            else
            { txtInfo.Font = Font; }
        }
    }
}