339 lines
13 KiB
C#
339 lines
13 KiB
C#
using System;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Windows.Forms;
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namespace JinYuan.ControlLib
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{
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public enum ControlType
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{
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/// <summary>
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/// 椭圆
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/// </summary>
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Ellipse,
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/// <summary>
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/// 矩形
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/// </summary>
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Rectangle,
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/// <summary>
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/// 直线
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/// </summary>
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Line
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}
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[DefaultEvent("CheckedChanged")]
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public partial class Toggle : UserControl
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{
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public Toggle()
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{
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InitializeComponent();
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//设置控件样式
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this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
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this.SetStyle(ControlStyles.DoubleBuffer, true);
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this.SetStyle(ControlStyles.ResizeRedraw, true);
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this.SetStyle(ControlStyles.Selectable, true);
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this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
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this.MouseDown += Toggle_MouseDown;
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}
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private void Toggle_MouseDown(object sender, MouseEventArgs e)
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{
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IsChecked = !IsChecked;
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CheckedChanged?.Invoke(this, e);
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}
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private ControlType controlType = ControlType.Ellipse;
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[Browsable(true)]
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[Category("自定义属性")]
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[Description("设置或获取控件的样式")]
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public ControlType ControlType
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{
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get { return controlType; }
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set
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{
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controlType = value;
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this.Invalidate();
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}
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}
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private Color trueColor = Color.FromArgb(73, 119, 232);
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[Browsable(true)]
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[Category("自定义属性")]
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[Description("设置或获取控件选中的颜色")]
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public Color TrueColor
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{
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get { return trueColor; }
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set
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{
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trueColor = value;
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this.Invalidate();
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}
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}
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private Color falseColor = Color.FromArgb(180, 180, 180);
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[Browsable(true)]
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[Category("自定义属性")]
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[Description("设置或获取控件未选中的颜色")]
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public Color FalseColor
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{
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get { return falseColor; }
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set
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{
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falseColor = value;
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this.Invalidate();
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}
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}
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private bool isChecked = false;
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[Browsable(true)]
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[Category("自定义属性")]
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[Description("设置或获取控件是否选中")]
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public bool IsChecked
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{
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get { return isChecked; }
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set
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{
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isChecked = value;
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this.Invalidate();
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}
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}
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private string trueText = string.Empty;
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[Browsable(true)]
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[Category("自定义属性")]
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[Description("设置或获取控件选中的文本")]
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public string TrueText
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{
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get { return trueText; }
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set
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{
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trueText = value;
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this.Invalidate();
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}
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}
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private string falseText = string.Empty;
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[Browsable(true)]
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[Category("自定义属性")]
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[Description("设置或获取控件未选中的文本")]
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public string FalseText
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{
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get { return falseText; }
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set
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{
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falseText = value;
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this.Invalidate();
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}
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}
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protected override void OnPaint(PaintEventArgs e)
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{
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base.OnPaint(e);
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Graphics graphics = e.Graphics;
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graphics.SmoothingMode = SmoothingMode.AntiAlias;
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graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
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//获取填充颜色
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Color fillColor = isChecked ? trueColor : falseColor;
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//创建路径
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GraphicsPath path = new GraphicsPath();
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//文本
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string text = isChecked ? trueText : falseText;
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//文件尺寸
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SizeF size = graphics.MeasureString(text, this.Font);
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//间隙
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int gap = 2;
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//小圆宽度
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int border = 2;
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switch (controlType)
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{
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case ControlType.Ellipse:
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float r = (this.Height - 2) * 0.5f;
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//添加直线
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path.AddLine(new Point(this.Height / 2, 1), new Point(this.Width - this.Height / 2, 1));
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//添加圆弧
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path.AddArc(new RectangleF(this.Width - 2 * r - 1, 1, 2 * r, 2 * r), -90, 180);
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//添加直线
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path.AddLine(new PointF(this.Width - r - 1, this.Height - 1), new Point(this.Height / 2, this.Height - 1));
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//添加圆弧
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path.AddArc(new RectangleF(1, 1, 2 * r, 2 * r), 90, 180);
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graphics.FillPath(new SolidBrush(fillColor), path);
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//大圆半径
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float radius = (this.Height - 2 * (1 + gap)) * 0.5f;
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//如果选中如何绘制
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if (isChecked)
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{
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graphics.FillEllipse(Brushes.White, new RectangleF(this.Width - 2 * radius - gap - 1, gap + 1, 2 * radius, 2 * radius));
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//如果文本为空，则画小圆，否则，写文字
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if (string.IsNullOrEmpty(text))
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{
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graphics.DrawEllipse(new Pen(Color.White, border), new RectangleF(this.Height * 0.5f - radius * 0.5f, this.Height * 0.5f - radius * 0.5f, radius, radius));
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}
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else
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{
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graphics.DrawString(text, this.Font, Brushes.White, new PointF(this.Height * 0.5f - size.Height * 0.5f, this.Height * 0.5f - size.Height * 0.5f));
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}
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}
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else
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{
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graphics.FillEllipse(Brushes.White, new RectangleF(gap + 1, gap + 1, 2 * radius, 2 * radius));
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//如果文本为空，则画小圆，否则，写文字
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if (string.IsNullOrEmpty(text))
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{
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graphics.DrawEllipse(new Pen(Color.White, border), new RectangleF(this.Width - (1.5f * radius + 1), this.Height * 0.5f - radius * 0.5f, radius, radius));
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}
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else
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{
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graphics.DrawString(text, this.Font, Brushes.White, new PointF(this.Width - (this.Height * 0.5f - size.Height * 0.5f) - size.Width, this.Height * 0.5f - size.Height * 0.5f));
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}
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}
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break;
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case ControlType.Rectangle:
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int intRadius = 3;
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//添加圆弧1
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path.AddArc(new RectangleF(1, 1, intRadius * 2, intRadius * 2), 180, 90);
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//添加圆弧2
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path.AddArc(new RectangleF(this.Width - 2 * intRadius - 1, 1, intRadius * 2, intRadius * 2), 270, 90);
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//添加圆弧3
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path.AddArc(new RectangleF(this.Width - 2 * intRadius - 1, this.Height - 2 * intRadius - 1, intRadius * 2, intRadius * 2), 0, 90);
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//添加圆弧4
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path.AddArc(new RectangleF(1, this.Height - 2 * intRadius - 1, intRadius * 2, intRadius * 2), 90, 90);
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graphics.FillPath(new SolidBrush(fillColor), path);
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if (isChecked)
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{
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path = new GraphicsPath();
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int inwidth = this.Height - 2 * (gap + 1);
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//添加圆弧1
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path.AddArc(new RectangleF(this.Width - inwidth - gap - 1, 1 + gap, intRadius * 2, intRadius * 2), 180, 90);
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//添加圆弧2
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path.AddArc(new RectangleF(this.Width - 1 - gap - 2 * intRadius, 1 + gap, intRadius * 2, intRadius * 2), 270, 90);
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//添加圆弧3
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path.AddArc(new RectangleF(this.Width - 1 - gap - 2 * intRadius, this.Height - 2 * intRadius - 1 - gap, intRadius * 2, intRadius * 2), 0, 90);
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//添加圆弧4
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path.AddArc(new RectangleF(this.Width - inwidth - gap - 1, this.Height - 2 * intRadius - 1 - gap, intRadius * 2, intRadius * 2), 90, 90);
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graphics.FillPath(Brushes.White, path);
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radius = inwidth * 0.5f;
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//如果文本为空，则画小圆，否则，写文字
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if (string.IsNullOrEmpty(text))
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{
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graphics.DrawEllipse(new Pen(Color.White, border), new RectangleF(this.Height * 0.5f - radius * 0.5f, this.Height * 0.5f - radius * 0.5f, radius, radius));
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}
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else
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{
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graphics.DrawString(text, this.Font, Brushes.White, new PointF(this.Height * 0.5f - size.Height * 0.5f, this.Height * 0.5f - size.Height * 0.5f));
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}
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}
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else
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{
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path = new GraphicsPath();
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int inwidth = this.Height - 2 * (gap + 1);
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//添加圆弧1
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path.AddArc(new RectangleF(1 + gap, 1 + gap, intRadius * 2, intRadius * 2), 180, 90);
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//添加圆弧2
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path.AddArc(new RectangleF(inwidth + 1 + gap - 2 * intRadius, 1 + gap, intRadius * 2, intRadius * 2), 270, 90);
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//添加圆弧3
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path.AddArc(new RectangleF(inwidth + 1 + gap - 2 * intRadius, this.Height - 2 * intRadius - 1 - gap, intRadius * 2, intRadius * 2), 0, 90);
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//添加圆弧4
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path.AddArc(new RectangleF(1 + gap, this.Height - 2 * intRadius - 1 - gap, intRadius * 2, intRadius * 2), 90, 90);
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graphics.FillPath(Brushes.White, path);
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radius = inwidth * 0.5f;
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//如果文本为空，则画小圆，否则，写文字
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if (string.IsNullOrEmpty(text))
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{
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graphics.DrawEllipse(new Pen(Color.White, border), new RectangleF(this.Width - (1.5f * radius + 1), this.Height * 0.5f - radius * 0.5f, radius, radius));
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}
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else
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{
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graphics.DrawString(text, this.Font, Brushes.White, new PointF(this.Width - (this.Height * 0.5f - size.Height * 0.5f) - size.Width, this.Height * 0.5f - size.Height * 0.5f));
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}
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}
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break;
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case ControlType.Line:
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float bigRadius = (this.Height - 2) * 0.5f;
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float smallRadius = bigRadius * 0.5f;
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path = new GraphicsPath();
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//添加直线1
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path.AddLine(new PointF(1 + bigRadius + smallRadius, 1 + smallRadius), new PointF(this.Width - (1 + bigRadius + smallRadius), 1 + smallRadius));
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//添加圆弧1
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path.AddArc(new RectangleF(this.Width - (1 + bigRadius + smallRadius * 2), 1 + smallRadius, smallRadius * 2, smallRadius * 2), -90, 180);
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//添加直线2
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path.AddLine(new PointF(this.Width - (1 + bigRadius + smallRadius), 1 + smallRadius + bigRadius), new PointF(1 + bigRadius + smallRadius, 1 + smallRadius + bigRadius));
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//添加圆弧2
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path.AddArc(new RectangleF(1 + bigRadius, 1 + smallRadius, smallRadius * 2, smallRadius * 2), 90, 180);
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graphics.FillPath(new SolidBrush(fillColor), path);
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if (isChecked)
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{
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graphics.FillEllipse(new SolidBrush(fillColor), new RectangleF(this.Width - (1 + bigRadius * 2), 1, bigRadius * 2, bigRadius * 2));
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graphics.FillEllipse(Brushes.White, new RectangleF(this.Width - (1 + bigRadius + smallRadius), 1 + smallRadius, smallRadius * 2, smallRadius * 2));
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}
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else
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{
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graphics.FillEllipse(new SolidBrush(fillColor), new RectangleF(1, 1, bigRadius * 2, bigRadius * 2));
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graphics.FillEllipse(Brushes.White, new RectangleF(1 + smallRadius, 1 + smallRadius, smallRadius * 2, smallRadius * 2));
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}
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break;
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default:
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break;
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}
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}
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[Browsable(true)]
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[Category("自定义事件")]
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[Description("选中发生变化触发")]
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public event EventHandler CheckedChanged;
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}
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}
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