using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Design;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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using static System.Windows.Forms.ComboBox;
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namespace DPumpHydr.WinFrmUI.WenSkin.Controls
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{
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public class WenLableComboBox : WenControl
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{
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public WenLableComboBox()
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{
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wenComboBox = new WenComboBox();
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wenComboBox.SelectedIndexChanged += (s, e) =>
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{
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base.Text = wenComboBox.Text;
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};
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wenComboBox.TextChanged += (s, e) =>
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{
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base.Text = wenComboBox.Text;
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};
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wenComboBox.SizeChanged += (s, e) =>
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{
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this.Height = wenComboBox.Height;
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};
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this.Controls.Add(wenComboBox);
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}
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#region 私有属性
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private WenComboBox wenComboBox;
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private string textLable;
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#endregion
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#region 公有属性
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public override string Text { get => base.Text; set { base.Text = value; wenComboBox.Text = value; } }
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[Category("Wen"), Description("下拉选项组合功能")]
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[DefaultValue(typeof(ComboBoxStyle), "DropDown")]
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public ComboBoxStyle DropDownStyle { get => wenComboBox.DropDownStyle; set => wenComboBox.DropDownStyle = value; }
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[Category("Wen"), Description("标签显示文本内容")]
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public string TextLable
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{
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get => textLable;
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set
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{
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textLable = value;
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this.Invalidate();
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SetLocationSize();
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}
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}
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[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
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[Editor("System.Windows.Forms.Design.ListControlStringCollectionEditor", typeof(UITypeEditor))]
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[Localizable(true)]
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[MergableProperty(false)]
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public ObjectCollection Items => wenComboBox.Items;
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#endregion
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private void SetLocationSize()
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{
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int w = TextRenderer.MeasureText(TextLable, this.Font).Width + 3;
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int h = (this.Height - wenComboBox.Height) / 2;
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wenComboBox.Location = new Point(w, h < 0 ? 0 : h);
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wenComboBox.Size = new Size(this.Width - w, (this.Height - wenComboBox.Height) / 2);
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}
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#region 重写事件
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//保持控件宽度
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protected override void SetBoundsCore(int x, int y, int width, int height, BoundsSpecified specified)
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{
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base.SetBoundsCore(x, y, width, wenComboBox.Height, specified);
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SetLocationSize();
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}
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#endregion
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#region 重绘
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protected override void WenOnPaint(Graphics g, Rectangle rec, PaintEventArgs e)
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{
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base.WenOnPaint(g, rec, e);
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this.DrawString(this.TextLable, g, rec);
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}
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#endregion
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public new void Focus()
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{
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wenComboBox.Focus();
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}
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}
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}
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