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（五十六）c#Winform自定义控件-瓶子（工业） - 冰封一夏
source link: https://www.cnblogs.com/bfyx/p/11463252.html
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入行已经7,8年了，一直想做一套漂亮点的自定义控件，于是就有了本系列文章。
GitHub：https://github.com/kwwwvagaa/NetWinformControl
码云：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
如果觉得写的还行，请点个 star 支持一下吧
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NuGet
Install-Package HZH_Controls
https://www.cnblogs.com/bfyx/p/11364884.html
用处及效果
依然是GDI+ 不了解请先百度一下
添加一个类UCBottle，继承UserControl
添加几个控制属性
1 //瓶身区域
2 /// <summary>
3 /// The m working rect
4 /// </summary>
5 Rectangle m_workingRect;
6
7 /// <summary>
8 /// The title
9 /// </summary>
10 string title = "瓶子1";
11
12 /// <summary>
13 /// Gets or sets the title.
14 /// </summary>
15 /// <value>The title.</value>
16 [Description("标题"), Category("自定义")]
17 public string Title
18 {
19 get { return title; }
20 set
21 {
22 title = value;
23 ResetWorkingRect();
24 Refresh();
25 }
26 }
27
28 /// <summary>
29 /// The bottle color
30 /// </summary>
31 private Color bottleColor = Color.FromArgb(255, 77, 59);
32
33 /// <summary>
34 /// Gets or sets the color of the bottle.
35 /// </summary>
36 /// <value>The color of the bottle.</value>
37 [Description("瓶子颜色"), Category("自定义")]
38 public Color BottleColor
39 {
40 get { return bottleColor; }
41 set
42 {
43 bottleColor = value;
44 Refresh();
45 }
46 }
47
48 /// <summary>
49 /// The bottle mouth color
50 /// </summary>
51 private Color bottleMouthColor = Color.FromArgb(105, 105, 105);
52
53 /// <summary>
54 /// Gets or sets the color of the bottle mouth.
55 /// </summary>
56 /// <value>The color of the bottle mouth.</value>
57 [Description("瓶口颜色"), Category("自定义")]
58 public Color BottleMouthColor
59 {
60 get { return bottleMouthColor; }
61 set { bottleMouthColor = value; }
62 }
63
64 /// <summary>
65 /// The liquid color
66 /// </summary>
67 private Color liquidColor = Color.FromArgb(3, 169, 243);
68
69 /// <summary>
70 /// Gets or sets the color of the liquid.
71 /// </summary>
72 /// <value>The color of the liquid.</value>
73 [Description("液体颜色"), Category("自定义")]
74 public Color LiquidColor
75 {
76 get { return liquidColor; }
77 set
78 {
79 liquidColor = value;
80 Refresh();
81 }
82 }
83
84
85 /// <summary>
86 /// 获取或设置控件显示的文字的字体。
87 /// </summary>
88 /// <value>The font.</value>
89 /// <PermissionSet>
90 /// <IPermission class="System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
91 /// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
92 /// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode, ControlEvidence" />
93 /// <IPermission class="System.Diagnostics.PerformanceCounterPermission, System, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
94 /// </PermissionSet>
95 [Description("文字字体"), Category("自定义")]
96 public override Font Font
97 {
98 get
99 {
100 return base.Font;
101 }
102 set
103 {
104 base.Font = value;
105 ResetWorkingRect();
106 Refresh();
107 }
108 }
109
110 /// <summary>
111 /// 获取或设置控件的前景色。
112 /// </summary>
113 /// <value>The color of the fore.</value>
114 /// <PermissionSet>
115 /// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
116 /// </PermissionSet>
117 [Description("文字颜色"), Category("自定义")]
118 public override System.Drawing.Color ForeColor
119 {
120 get
121 {
122 return base.ForeColor;
123 }
124 set
125 {
126 base.ForeColor = value;
127 Refresh();
128 }
129 }
130
131 /// <summary>
132 /// The maximum value
133 /// </summary>
134 private decimal maxValue = 100;
135
136 /// <summary>
137 /// Gets or sets the maximum value.
138 /// </summary>
139 /// <value>The maximum value.</value>
140 [Description("最大值"), Category("自定义")]
141 public decimal MaxValue
142 {
143 get { return maxValue; }
144 set
145 {
146 if (value < m_value)
147 return;
148 maxValue = value;
149 Refresh();
150 }
151 }
152
153 /// <summary>
154 /// The m value
155 /// </summary>
156 private decimal m_value = 50;
157
158 /// <summary>
159 /// Gets or sets the value.
160 /// </summary>
161 /// <value>The value.</value>
162 [Description("值"), Category("自定义")]
163 public decimal Value
164 {
165 get { return m_value; }
166 set
167 {
168 if (value <= 0 || value > maxValue)
169 return;
170 m_value = value;
171 Refresh();
172 }
173 }
174
175 /// <summary>
176 /// The m no
177 /// </summary>
178 private string m_NO;
179 /// <summary>
180 /// Gets or sets the NO.
181 /// </summary>
182 /// <value>The no.</value>
183 [Description("编号"), Category("自定义")]
184 public string NO
185 {
186 get { return m_NO; }
187 set
188 {
189 m_NO = value;
190 Refresh();
191 }
192 }
1 protected override void OnPaint(PaintEventArgs e)
2 {
3 base.OnPaint(e);
4 var g = e.Graphics;
5 g.SetGDIHigh();
6 //写文字
7 var size = g.MeasureString(title, Font);
8 g.DrawString(title, Font, new SolidBrush(ForeColor), new PointF((this.Width - size.Width) / 2, 2));
9
10 //画空瓶子
11 GraphicsPath pathPS = new GraphicsPath();
12 Point[] psPS = new Point[]
13 {
14 new Point(m_workingRect.Left, m_workingRect.Top),
15 new Point(m_workingRect.Right - 1, m_workingRect.Top),
16 new Point(m_workingRect.Right - 1, m_workingRect.Bottom - 15),
17 new Point(m_workingRect.Right - 1 - m_workingRect.Width / 4, m_workingRect.Bottom),
18 new Point(m_workingRect.Left + m_workingRect.Width / 4, m_workingRect.Bottom),
19 new Point(m_workingRect.Left, m_workingRect.Bottom - 15),
20 };
21 pathPS.AddLines(psPS);
22 pathPS.CloseAllFigures();
23 g.FillPath(new SolidBrush(bottleColor), pathPS);
24 //画液体
25 decimal decYTHeight = (m_value / maxValue) * m_workingRect.Height;
26 GraphicsPath pathYT = new GraphicsPath();
27 Rectangle rectYT = Rectangle.Empty;
28 if (decYTHeight < 15)
29 {
30 PointF[] psYT = new PointF[]
31 {
32 new PointF((float)(m_workingRect.Left+(15-decYTHeight))+3,(float)(m_workingRect.Bottom-decYTHeight)),
33 new PointF((float)(m_workingRect.Right-(15-decYTHeight))-3,(float)(m_workingRect.Bottom-decYTHeight)),
34 new PointF(m_workingRect.Right-1-m_workingRect.Width/4, m_workingRect.Bottom),
35 new PointF(m_workingRect.Left+m_workingRect.Width/4, m_workingRect.Bottom),
36 };
37 pathYT.AddLines(psYT);
38 pathYT.CloseAllFigures();
39 rectYT = new Rectangle((m_workingRect.Left + (15 - (int)decYTHeight)) + 3, m_workingRect.Bottom - (int)decYTHeight - 5, m_workingRect.Width - (int)(15 - decYTHeight) * 2 - 8, 10);
40 }
41 else
42 {
43 PointF[] psYT = new PointF[]
44 {
45 new PointF(m_workingRect.Left,(float)(m_workingRect.Bottom-decYTHeight)),
46 new PointF(m_workingRect.Right-1,(float)(m_workingRect.Bottom-decYTHeight)),
47 new PointF(m_workingRect.Right-1,m_workingRect.Bottom-15),
48 new PointF(m_workingRect.Right-1-m_workingRect.Width/4, m_workingRect.Bottom),
49 new PointF(m_workingRect.Left+m_workingRect.Width/4, m_workingRect.Bottom),
50 new PointF(m_workingRect.Left,m_workingRect.Bottom-15),
51 };
52 pathYT.AddLines(psYT);
53 pathYT.CloseAllFigures();
54 rectYT = new Rectangle(m_workingRect.Left, m_workingRect.Bottom - (int)decYTHeight - 5, m_workingRect.Width, 10);
55 }
56
57 g.FillPath(new SolidBrush(liquidColor), pathYT);
58 g.FillPath(new SolidBrush(Color.FromArgb(50, bottleMouthColor)), pathYT);
59 //画液体面
60 g.FillEllipse(new SolidBrush(liquidColor), rectYT);
61 g.FillEllipse(new SolidBrush(Color.FromArgb(50, Color.White)), rectYT);
62
63 //画高亮
64 int intCount = m_workingRect.Width / 2 / 4;
65 int intSplit = (255 - 100) / intCount;
66 for (int i = 0; i < intCount; i++)
67 {
68 int _penWidth = m_workingRect.Width / 2 - 4 * i;
69 if (_penWidth <= 0)
70 _penWidth = 1;
71 g.DrawLine(new Pen(new SolidBrush(Color.FromArgb(10, Color.White)), _penWidth), new Point(m_workingRect.Width / 2, m_workingRect.Top), new Point(m_workingRect.Width / 2, m_workingRect.Bottom - 15));
72 if (_penWidth == 1)
73 break;
74 }
75
76 //画瓶底
77 g.FillEllipse(new SolidBrush(bottleColor), new RectangleF(m_workingRect.Left, m_workingRect.Top - 5, m_workingRect.Width - 2, 10));
78 g.FillEllipse(new SolidBrush(Color.FromArgb(50, Color.White)), new RectangleF(m_workingRect.Left, m_workingRect.Top - 5, m_workingRect.Width - 2, 10));
79 //画瓶口
80 g.FillRectangle(new SolidBrush(bottleMouthColor), new Rectangle(m_workingRect.Left + m_workingRect.Width / 4, m_workingRect.Bottom, m_workingRect.Width / 2, 15));
81 //画瓶颈阴影
82 GraphicsPath pathPJ = new GraphicsPath();
83 Point[] psPJ = new Point[]
84 {
85 new Point(m_workingRect.Left, m_workingRect.Bottom-15),
86 new Point(m_workingRect.Right-1, m_workingRect.Bottom-15),
87 new Point(m_workingRect.Right-1-m_workingRect.Width/4, m_workingRect.Bottom),
88 new Point(m_workingRect.Left+m_workingRect.Width/4, m_workingRect.Bottom)
89 };
90 pathPJ.AddLines(psPJ);
91 pathPJ.CloseAllFigures();
92 g.FillPath(new SolidBrush(Color.FromArgb(50, bottleMouthColor)), pathPJ);
93
94 //写编号
95 if (!string.IsNullOrEmpty(m_NO))
96 {
97 var nosize = g.MeasureString(m_NO, Font);
98 g.DrawString(m_NO, Font, new SolidBrush(ForeColor), new PointF((this.Width - nosize.Width) / 2, m_workingRect.Top + 10));
99 }
100 }
代码就这么多
View Code
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