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(六十二)c#Winform自定义控件-警灯(工业)

程序员文章站 2022-05-03 22:21:56
前提 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_contr ......

前提

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:

如果觉得写的还行,请点个 star 支持一下吧

欢迎前来交流探讨: 企鹅群568015492 

麻烦博客下方点个【推荐】,谢谢

nuget

install-package hzh_controls

目录

用处及效果

(六十二)c#Winform自定义控件-警灯(工业)

准备工作

依然gdi+,不懂可以先百度了解下

开始

添加一个类ucalarmlamp,继承自usercontrol

添加属性

 1  /// <summary>
 2         /// the lamp color
 3         /// </summary>
 4         private color[] lampcolor = new color[] { color.fromargb(255, 77, 59) };
 5 
 6         /// <summary>
 7         /// gets or sets the color of the lamp.
 8         /// </summary>
 9         /// <value>the color of the lamp.</value>
10         [description("灯颜色,当需要闪烁时,至少需要2个及以上颜色,不需要闪烁则至少需要1个颜色"), category("自定义")]
11         public color[] lampcolor
12         {
13             get { return lampcolor; }
14             set
15             {
16                 if (value == null || value.length <= 0)
17                     return;
18                 lampcolor = value;
19                 refresh();
20             }
21         }
22 
23         /// <summary>
24         /// the lampstand
25         /// </summary>
26         private color lampstand = color.fromargb(105, 105, 105);
27 
28         /// <summary>
29         /// gets or sets the lampstand.
30         /// </summary>
31         /// <value>the lampstand.</value>
32         [description("灯座颜色"), category("自定义")]
33         public color lampstand
34         {
35             get { return lampstand; }
36             set { lampstand = value; }
37         }
38 
39         /// <summary>
40         /// the twinkle speed
41         /// </summary>
42         private int twinklespeed = 0;
43 
44         /// <summary>
45         /// gets or sets the twinkle speed.
46         /// </summary>
47         /// <value>the twinkle speed.</value>
48         [description("闪烁间隔时间(毫秒),当为0时不闪烁"), category("自定义")]
49         public int twinklespeed
50         {
51             get { return twinklespeed; }
52             set
53             {
54                 if (value < 0)
55                     return;
56                 twinklespeed = value;
57                 if (value == 0 || lampcolor.length <= 1)
58                 {
59                     timer.enabled = false;
60                 }
61                 else
62                 {
63                     intcolorindex = 0;
64                     timer.interval = value;
65                     timer.enabled = true;
66                 }
67                 refresh();
68             }
69         }
70         /// <summary>
71         /// the timer
72         /// </summary>
73         timer timer;
74         /// <summary>
75         /// the int color index
76         /// </summary>
77         int intcolorindex = 0;
78         /// <summary>
79         /// the m rect working
80         /// </summary>
81         rectangle m_rectworking;

重绘

 1  protected override void onpaint(painteventargs e)
 2         {
 3             base.onpaint(e);
 4             var g = e.graphics;
 5             g.setgdihigh();
 6 
 7             color c1 = lampcolor[intcolorindex];
 8             graphicspath path = new graphicspath();
 9             path.addline(new point(m_rectworking.left, m_rectworking.bottom), new point(m_rectworking.left, m_rectworking.top + m_rectworking.width));
10             path.addarc(new rectangle(m_rectworking.left, m_rectworking.top, m_rectworking.width, m_rectworking.width), 180f, 180f);
11             path.addline(new point(m_rectworking.right, m_rectworking.top + m_rectworking.width), new point(m_rectworking.right, m_rectworking.bottom));
12             path.closeallfigures();
13             g.fillpath(new solidbrush(c1), path);
14 
15             g.fillrectangle(new solidbrush(lampstand), new rectangle(5, m_rectworking.bottom - 19, this.width - 10, 10));
16             g.fillrectangle(new solidbrush(lampstand), new rectangle(0, m_rectworking.bottom - 10, this.width, 10));
17         }

完整代码

  1 // ***********************************************************************
  2 // assembly         : hzh_controls
  3 // created          : 2019-09-10
  4 //
  5 // ***********************************************************************
  6 // <copyright file="ucalarmlamp.cs">
  7 //     copyright by huang zhenghui(黄正辉) all, qq group:568015492 qq:623128629 email:623128629@qq.com
  8 // </copyright>
  9 //
 10 // blog: https://www.cnblogs.com/bfyx
 11 // github:https://github.com/kwwwvagaa/netwinformcontrol
 12 // gitee:https://gitee.com/kwwwvagaa/net_winform_custom_control.git
 13 //
 14 // if you use this code, please keep this note.
 15 // ***********************************************************************
 16 using system;
 17 using system.collections.generic;
 18 using system.linq;
 19 using system.text;
 20 using system.windows.forms;
 21 using system.drawing;
 22 using system.drawing.drawing2d;
 23 using system.componentmodel;
 24 
 25 namespace hzh_controls.controls
 26 {
 27     /// <summary>
 28     /// class ucalarmlamp.
 29     /// implements the <see cref="system.windows.forms.usercontrol" />
 30     /// </summary>
 31     /// <seealso cref="system.windows.forms.usercontrol" />
 32     public class ucalarmlamp : usercontrol
 33     {
 34         /// <summary>
 35         /// the lamp color
 36         /// </summary>
 37         private color[] lampcolor = new color[] { color.fromargb(255, 77, 59) };
 38 
 39         /// <summary>
 40         /// gets or sets the color of the lamp.
 41         /// </summary>
 42         /// <value>the color of the lamp.</value>
 43         [description("灯颜色,当需要闪烁时,至少需要2个及以上颜色,不需要闪烁则至少需要1个颜色"), category("自定义")]
 44         public color[] lampcolor
 45         {
 46             get { return lampcolor; }
 47             set
 48             {
 49                 if (value == null || value.length <= 0)
 50                     return;
 51                 lampcolor = value;
 52                 refresh();
 53             }
 54         }
 55 
 56         /// <summary>
 57         /// the lampstand
 58         /// </summary>
 59         private color lampstand = color.fromargb(105, 105, 105);
 60 
 61         /// <summary>
 62         /// gets or sets the lampstand.
 63         /// </summary>
 64         /// <value>the lampstand.</value>
 65         [description("灯座颜色"), category("自定义")]
 66         public color lampstand
 67         {
 68             get { return lampstand; }
 69             set { lampstand = value; }
 70         }
 71 
 72         /// <summary>
 73         /// the twinkle speed
 74         /// </summary>
 75         private int twinklespeed = 0;
 76 
 77         /// <summary>
 78         /// gets or sets the twinkle speed.
 79         /// </summary>
 80         /// <value>the twinkle speed.</value>
 81         [description("闪烁间隔时间(毫秒),当为0时不闪烁"), category("自定义")]
 82         public int twinklespeed
 83         {
 84             get { return twinklespeed; }
 85             set
 86             {
 87                 if (value < 0)
 88                     return;
 89                 twinklespeed = value;
 90                 if (value == 0 || lampcolor.length <= 1)
 91                 {
 92                     timer.enabled = false;
 93                 }
 94                 else
 95                 {
 96                     intcolorindex = 0;
 97                     timer.interval = value;
 98                     timer.enabled = true;
 99                 }
100                 refresh();
101             }
102         }
103         /// <summary>
104         /// the timer
105         /// </summary>
106         timer timer;
107         /// <summary>
108         /// the int color index
109         /// </summary>
110         int intcolorindex = 0;
111         /// <summary>
112         /// the m rect working
113         /// </summary>
114         rectangle m_rectworking;
115         /// <summary>
116         /// initializes a new instance of the <see cref="ucalarmlamp"/> class.
117         /// </summary>
118         public ucalarmlamp()
119         {
120             this.setstyle(controlstyles.allpaintinginwmpaint, true);
121             this.setstyle(controlstyles.doublebuffer, true);
122             this.setstyle(controlstyles.resizeredraw, true);
123             this.setstyle(controlstyles.selectable, true);
124             this.setstyle(controlstyles.supportstransparentbackcolor, true);
125             this.setstyle(controlstyles.userpaint, true);
126             this.autoscalemode = system.windows.forms.autoscalemode.none;
127             this.sizechanged += ucalarmlamp_sizechanged;
128             this.size = new size(50, 50);
129             timer = new timer();
130             timer.interval = 200;
131             timer.tick += timer_tick;
132         }
133 
134         /// <summary>
135         /// handles the sizechanged event of the ucalarmlamp control.
136         /// </summary>
137         /// <param name="sender">the source of the event.</param>
138         /// <param name="e">the <see cref="eventargs"/> instance containing the event data.</param>
139         void ucalarmlamp_sizechanged(object sender, eventargs e)
140         {
141             m_rectworking = new rectangle(10, 0, this.width - 20, this.height);
142         }
143         /// <summary>
144         /// handles the tick event of the timer control.
145         /// </summary>
146         /// <param name="sender">the source of the event.</param>
147         /// <param name="e">the <see cref="eventargs"/> instance containing the event data.</param>
148         void timer_tick(object sender, eventargs e)
149         {
150             intcolorindex++;
151             if (intcolorindex >= lampcolor.length)
152                 intcolorindex = 0;
153             refresh();
154         }
155         /// <summary>
156         /// 引发 <see cref="e:system.windows.forms.control.paint" /> 事件。
157         /// </summary>
158         /// <param name="e">包含事件数据的 <see cref="t:system.windows.forms.painteventargs" />。</param>
159         protected override void onpaint(painteventargs e)
160         {
161             base.onpaint(e);
162             var g = e.graphics;
163             g.setgdihigh();
164 
165             color c1 = lampcolor[intcolorindex];
166             graphicspath path = new graphicspath();
167             path.addline(new point(m_rectworking.left, m_rectworking.bottom), new point(m_rectworking.left, m_rectworking.top + m_rectworking.width));
168             path.addarc(new rectangle(m_rectworking.left, m_rectworking.top, m_rectworking.width, m_rectworking.width), 180f, 180f);
169             path.addline(new point(m_rectworking.right, m_rectworking.top + m_rectworking.width), new point(m_rectworking.right, m_rectworking.bottom));
170             path.closeallfigures();
171             g.fillpath(new solidbrush(c1), path);
172 
173             g.fillrectangle(new solidbrush(lampstand), new rectangle(5, m_rectworking.bottom - 19, this.width - 10, 10));
174             g.fillrectangle(new solidbrush(lampstand), new rectangle(0, m_rectworking.bottom - 10, this.width, 10));
175         }
176     }
177 }

 

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