using System;
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using System.ComponentModel;
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using System.Drawing;
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using System.Windows.Forms;
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namespace DPumpHydr.WinFrmUI.WenSkin.Controls
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{
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public partial class WenLableClickToTextBox : WenControl
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{
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public WenLableClickToTextBox() : base()
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{
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InitializeComponent();
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textBox = new TextBox()
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{
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Text = this.Text,
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Width = this.Width,
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Visible = false
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};
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textBox.KeyDown += (s, e) =>
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{
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if (Keys.Enter == e.KeyCode)
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{
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textBox.Visible = false;
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OnTextUpdateBefore(textBox.Text);
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}
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};
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textBox.LostFocus += (s, e) =>
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{
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textBox.Visible = false;
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};
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this.Controls.Add(textBox);
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}
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public delegate void TextUpdateEventHandler(object sender, TextUpdateEventArgs e);
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public event TextUpdateEventHandler TextUpdateBefore;
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public event TextUpdateEventHandler TextUpdateChanged;
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private TextBox textBox { get; set; }
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[Category("Wen")]
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[Description("是否允许多行输入")]
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[DefaultValue(false)]
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public bool Multiline
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{
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get => textBox.Multiline;
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set
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{
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if (value)
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{
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textBox.Dock = DockStyle.Fill;
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textBox.Multiline = true;
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}
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else
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{
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textBox.Dock = DockStyle.None;
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textBox.Multiline = false;
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}
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}
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}
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[Category("Wen")]
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[Description("能否弹出输入内容框")]
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[DefaultValue(false)]
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public bool ReadOnly { get => textBox.ReadOnly; set => textBox.ReadOnly = value; }
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[Category("Wen")]
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[Description("获取或设置字符串的垂直对齐方式")]
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[DefaultValue(StringAlignment.Center)]
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public StringAlignment LineAlignment { get; set; } = StringAlignment.Center;
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[Category("Wen")]
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[Description("获取或设置字符串的水平对齐方式")]
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[DefaultValue(StringAlignment.Near)]
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public StringAlignment Alignment { get; set; } = StringAlignment.Near;
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[Category("Wen")]
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[Description("对象绘制的文本超出布局矩形的边缘时被剪裁的方式")]
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[DefaultValue(StringTrimming.EllipsisCharacter)]
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public StringTrimming Trimming { get; set; } = StringTrimming.EllipsisCharacter;
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[Category("Wen")]
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[Description("获取或设置包含格式化信息")]
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[DefaultValue(StringFormatFlags.NoWrap)]
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public StringFormatFlags FormatFlags { get; set; } = StringFormatFlags.NoWrap;
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protected override void OnPaint(PaintEventArgs e)
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{
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Rectangle rec = new Rectangle(0, 0, this.Width, this.Height);
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using Brush brush = new SolidBrush(ForeColor);
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e.Graphics.DrawString(this.Text, Font, brush, rec
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, new StringFormat()
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{
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LineAlignment = this.LineAlignment,
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Alignment = this.Alignment,
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Trimming = this.Trimming,
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FormatFlags = this.FormatFlags
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});
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base.OnPaint(e);
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}
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protected override void OnClick(EventArgs e)
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{
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base.OnClick(e);
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if (ReadOnly)
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return;
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if (textBox.Visible)
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{
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OnTextUpdateBefore(textBox.Text);
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textBox.Visible = false;
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}
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else
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{
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textBox.Text = this.Text;
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textBox.Width = this.Width - 2;
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textBox.Location = new Point(1, (this.Height - textBox.Height) / 2);
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textBox.Visible = true;
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textBox.Focus();
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}
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}
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private void OnTextUpdateBefore(string text)
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{
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TextUpdateEventArgs e = new TextUpdateEventArgs()
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{
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Text = text,
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Continue = true
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};
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TextUpdateBefore?.Invoke(this, e);
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if (e.Continue == true)
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{
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this.Text = textBox.Text;
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TextUpdateChanged?.Invoke(this, e);
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}
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}
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}
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public class TextUpdateEventArgs : EventArgs
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{
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public string Text { get; set; }
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public bool Continue { get; set; }
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}
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}
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