（八十八）c#Winform自定义控件

（八十八）c#Winform自定义控件

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NuGet

Install-Package HZH_Controls

目录

 

 准备工作

也没什么准备的，开撸

开始

添加一个用户控件UCRotor

添加一下属性

 1 private Color rotorColor = Color.Black; 2  3   public Color RotorColor 4   { 5    get { return rotorColor; } 6    set 7    { 8     rotorColor = value; 9     Refresh();10    }11   }12 13   RotorAround rotorAround = RotorAround.None;14   int jiaodu = 0;15   public RotorAround RotorAround16   {17    get { return rotorAround; }18    set19    {20     rotorAround = value;21     if (value == RotorAround.None)22     {23      timer1.Enabled = false;24      jiaodu = 0;25      Refresh();26     }27     else28      timer1.Enabled = true;29    }30   }31   private int speed = 100;32 33   [Description("旋转速度，100-1000，值越小 速度越快"), Category("自定义")]34   public int Speed35   {36    get { return speed; }37    set38    {39     if (value < 100 || value > 1000)40      return;41     speed = value;42     timer1.Interval = value;43    }44   }

大小改变事件处理一下

1 void UCRotor_SizeChanged(object sender, EventArgs e)2   {3    maxWidth = Math.Min(this.Width, this.Height);4    one = maxWidth / 10;5    ResetPathCache();6 7   }

然后就是重绘了

 1 protected override void OnPaint(PaintEventArgs e) 2   { 3    base.OnPaint(e); 4    var g = e.Graphics; 5    this.Region = new System.Drawing.Region(lstCachePath[jiaodu]); 6    g.TranslateTransform(Width / 2, Height / 2); 7    // 旋转画板 8    g.RotateTransform(jiaodu); 9    // 回退画板x,y轴移动过的距离10    g.TranslateTransform(-(Width / 2), -(Height / 2));11    g.FillEllipse(new SolidBrush(rotorColor), new Rectangle((this.Width - maxWidth) / 2+5, (this.Height - maxWidth) / 2 + maxWidth / 4 + maxWidth / 8+2, maxWidth / 2-5, maxWidth / 2 - maxWidth / 4-4));12    g.FillEllipse(new SolidBrush(rotorColor), new Rectangle(this.Width / 2, (this.Height - maxWidth) / 2 + maxWidth / 4 + maxWidth / 8+2, maxWidth / 2-5, maxWidth / 2 - maxWidth / 4-4));13    g.FillEllipse(new SolidBrush(rotorColor), new Rectangle((this.Width - maxWidth) / 2 + maxWidth / 2 - maxWidth / 8, (this.Height - maxWidth) / 2 + maxWidth / 2 - maxWidth / 8, maxWidth / 4, maxWidth / 4));14    g.FillEllipse(new SolidBrush(Color.FromArgb(10, Color.White)), new Rectangle((this.Width - maxWidth) / 2 + maxWidth / 2 - maxWidth / 8, (this.Height - maxWidth) / 2 + maxWidth / 2 - maxWidth / 8, maxWidth / 4, maxWidth / 4));15 16   }

添加一个Timer用以旋转

 1 private void timer1_Tick(object sender, EventArgs e) 2   { 3    if (rotorAround == RotorAround.Clockwise) 4    { 5     jiaodu += 15; 6     if (jiaodu == 180) 7      jiaodu = 0; 8    } 9    else if (rotorAround == RotorAround.Counterclockwise)10    {11     jiaodu -= 15;12     if (jiaodu < 0)13      jiaodu = 165;14    }15 16    Refresh();17   }

最后的话

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