145 lines
4.6 KiB
C#
145 lines
4.6 KiB
C#
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.Drawing2D;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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namespace JYControl
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{
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public partial class CircleCountValue : Control
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{
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//这个写最上面是因为我自己也不懂是啥意思，只知道界面控件重绘容易产生闪烁的问题，这个加了就不会有
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//解决控件批量更新时带来的闪烁
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protected override CreateParams CreateParams { get { CreateParams cp = base.CreateParams; cp.ExStyle |= 0x02000000; return cp; } }
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//-------------------颜色
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private Color bgColor = Color.FromArgb(224, 224, 224); //背景边框颜色
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private Color sectorColor = Color.FromArgb(109, 179, 63); //扇形颜色
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[Category("控件属性")]
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[Description("背景边框颜色")]
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public Color BgColor
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{
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get { return this.bgColor; }
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set
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{
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this.bgColor = value;
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this.Invalidate();
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}
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}
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[Category("控件属性")]
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[Description("扇形颜色")]
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public Color SectorColor
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{
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get { return this.sectorColor; }
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set
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{
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this.sectorColor = value;
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this.Invalidate();
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}
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}
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private int borderWidth = 2;//边框宽度
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[Category("控件属性")]
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[Description("边框宽度")]
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public int BorderWidth
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{
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get { return this.borderWidth; }
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set
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{
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this.borderWidth = value;
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this.Invalidate();
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}
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}
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/// <summary>
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/// 圆形进度条实心
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/// </summary>
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public CircleCountValue()
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{
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InitControl();
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this.SizeChanged += delegate
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{
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this.Invalidate(); //重绘控件
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};
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}
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int maxValue = 500000; //进度最大值
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private int countValue = 0;
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/// <summary>
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/// 进度值
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/// </summary>
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///
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[Category("控件属性")]
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[Description("进度值，最大值500000")]
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public int CountValue
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{
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get { return this.countValue; }
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set
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{
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if (value > this.maxValue)
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{
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return;
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}
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this.countValue = value;
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this.Invalidate();
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}
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}
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/// <summary>
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/// 初始化控件参数
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/// </summary>
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private void InitControl()
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{
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this.Width = 200;
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this.Height = 200;
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}
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//对Control进行绘制
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protected override void OnPaint(PaintEventArgs e)
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{
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DrawShape(e.Graphics); //绘制控件样式
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}
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/// <summary>
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/// 画图
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/// </summary>
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/// <param name="g">画图工具类</param>
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private void DrawShape(Graphics g)
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{
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if (this.Width < borderWidth * 4 || this.Height < borderWidth * 4)
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{
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return;
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}
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g.SmoothingMode = SmoothingMode.AntiAlias; //消除锯齿，也就是抗锯齿什么鬼东西
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g.InterpolationMode = InterpolationMode.HighQualityBicubic;
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g.CompositingQuality = CompositingQuality.HighQuality;
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RectangleF bg_rectangle = new RectangleF(0 + borderWidth, 0 + borderWidth, Width - borderWidth * 2, Height - borderWidth * 2); //控件整体坐标
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g.DrawEllipse(new Pen(bgColor, borderWidth), bg_rectangle); //画背景圆
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Rectangle rl = new Rectangle(0 + borderWidth * 2, 0 + borderWidth * 2, this.Width - borderWidth * 4, this.Height - borderWidth * 4);
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decimal topAngle = (this.countValue * 1.0M / this.maxValue) * 360M;//计算进度条划过的度数
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g.FillPie(new SolidBrush(sectorColor), rl, 0, (float)topAngle); //填充扇形
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//SizeF proValSize = g.MeasureString(this.progress.ToString() + "%", this.Font);//计算文字的范围
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SizeF proValSize = g.MeasureString(this.countValue.ToString(), this.Font);//计算文字的范围
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//g.DrawString(this.progress.ToString() + "%", this.Font, new SolidBrush(this.ForeColor),
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g.DrawString(this.countValue.ToString(), this.Font, new SolidBrush(this.ForeColor),
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bg_rectangle.X + bg_rectangle.Width / 2 - proValSize.Width / 2, bg_rectangle.Y + bg_rectangle.Height / 2 - proValSize.Height / 2);
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}
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}
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}
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