winform窗体、控件的简单封装，重做标题栏

1标题栏封装中使用了以下技术：

知识点：
1.父类、子类的继承；
2.窗体之间的继承；
3.自定义控件的绘制；
4.多线程在窗体间的应用；
5.窗体和控件的封装；
6.回调函数（委托）；

效果展示

部分代码展示

	/// 

    /// 标题栏
    /// 
    public sealed partial class UcViewTitle : UserControl
    {

        /// 

        /// 鼠标按下时子控件、父控件的位置
        /// 
        private Point _mouseDownChildLocation, _mouseDownParentLocation;

        /// 

        /// 标题栏文本字体
        /// 
        public Font TitleFont { get; set; } = new Font("微软雅黑", 24.25F, FontStyle.Regular, GraphicsUnit.Point, 134);

        /// 

        /// 标题栏文本内容
        /// 
        public string Title { get; set; } = "科技未来，等你引领";

        /// 

        /// 标题栏背景颜色
        /// 
        public Color TitleBackColor { get; set; } = Color.FromArgb(0, 49, 71);

        /// 

        /// 标题栏文本颜色
        /// 
        public Color TitleTextBackColor { get; set; } = Color.White;

        /// 

        /// 回调函数：关闭窗体时触发
        /// 
        public Action CallbackCloseForm;

        /// 

        /// 鼠标双击时设置窗体最大化、默认状态
        /// 
        public Func<FormWindowState> FunGetFormState;

        /// 

        /// 鼠标双击时设置窗体最大化、默认状态
        /// 
        public Action<FormWindowState> ActionMouseDouble;

        /// 

        /// 鼠标按下时窗体的位置
        /// 
        public Func<Point> ActionMouseDownLocation;

        /// 

        /// 鼠标移动后窗体的新位置
        /// 
        public Action<Point> ActionMouseMoveLocation;

        /// 

        /// 构造函数
        /// 
        public UcViewTitle()
        {
            InitializeComponent();
            this.DoubleBuffered = true;
            SetToolTip();
        }

        private void UcViewTitle_Load(object sender, EventArgs e)
        {
            new Task(() =>
            {
                try
                {
                    while (true)
                    {
                        Thread.Sleep(1000);
                        Invoke(new EventHandler(delegate { this.Refresh(); }));
                    }
                }
                catch (Exception ex)
                {


                }
            }).Start();
        }


        [Description("跟随串口大小重新绘制标题栏")]
        private void UcTitle_SizeChanged(object sender, EventArgs e)
        {
            pic_Close.Location = new Point(this.Width - 5 - pic_Close.Width, this.Height / 2 - pic_Close.Height / 2);
            pic_Maximize.Location = new Point(pic_Close.Location.X - 5 - pic_Minimality.Width, this.Height / 2 - pic_Maximize.Height / 2);
            pic_Minimality.Location = new Point(pic_Maximize.Location.X - 5 - pic_Minimality.Width, this.Height / 2 - pic_Close.Height / 2);
            //pic_Logo.Location = new Point(10, this.Height / 2 - pic_Logo.Height / 2);
            SetPictureMaxIcon();
            Refresh();
        }

        [Description("绘制标题栏")]
        private void UcTitle_Paint(object sender, PaintEventArgs e)
        {
            e.Graphics.Clear(TitleBackColor);
            // e.Graphics.Clear(Color.FromArgb(14, 30, 63));
            e.Graphics.SmoothingMode = SmoothingMode.HighQuality;//指定抗锯齿的呈现

            var brush = new SolidBrush(TitleTextBackColor);

            #region [绘制日期时间]

            var textTimeStartX = pic_Logo.Location.X + pic_Logo.Width + 10;
            var textTimeFont = new Font(TitleFont.Name, 14f, FontStyle.Regular, GraphicsUnit.Point, 134);

            string text = GetDate();
            var textDateSize = e.Graphics.MeasureString(text, textTimeFont);
            PointF textLocation = new PointF(textTimeStartX, this.Height / 2);
            e.Graphics.DrawString(text, textTimeFont, brush, textLocation);

            text = GetTime();
            var textTimeSize = e.Graphics.MeasureString(text, textTimeFont);
            textLocation = new PointF(textTimeStartX + textDateSize.Width / 2 - textTimeSize.Width / 2, this.Height / 2 - textDateSize.Height);
            e.Graphics.DrawString(text, textTimeFont, brush, textLocation);
            #endregion [绘制日期时间]

            //绘制标题
            var textTitleSize = e.Graphics.MeasureString(Title, TitleFont);
            textLocation = new PointF(this.Width / 2.0f - textTitleSize.Width / 2.0f, this.Height / 2.0f - textTitleSize.Height / 2.0f);
            e.Graphics.DrawString(Title, TitleFont, brush, textLocation);

        }

        [Description("最小化窗口")]
        private void pic_Minimality_Click(object sender, EventArgs e) => ActionMouseDouble?.Invoke(FormWindowState.Minimized);

        [Description("最大化窗口")]
        private void pic_Maximize_Click(object sender, EventArgs e) => SwitchWindowState();

        [Description("关闭窗口")]
        private void pic_Close_Click(object sender, EventArgs e) => CallbackCloseForm?.Invoke();

        [Description("鼠标双击时设置窗体最大化、默认状态")]
        private void UcViewTitle_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            if (e.Button != MouseButtons.Left) return;
            SwitchWindowState();
        }

        [Description("鼠标按下记录位置信息用于计算移动窗口的初始值")]
        private void UcViewTitle_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                _mouseDownChildLocation = e.Location;
            }
        }

        [Description("鼠标按下并移动时设置窗口新的位置信息")]
        private void UcViewTitle_MouseMove(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                ActionMouseDouble?.Invoke(FormWindowState.Normal);
                if (ActionMouseDownLocation != null)
                {
                    _mouseDownParentLocation = ActionMouseDownLocation();
                }
                var addX = e.X - _mouseDownChildLocation.X;
                var addY = e.Y - _mouseDownChildLocation.Y;
                ActionMouseMoveLocation?.Invoke(new Point(_mouseDownParentLocation.X + addX, _mouseDownParentLocation.Y + addY));
            }
        }

        [Description("设置最小化、最大化、关闭的鼠标悬空提示信息")]
        private void SetToolTip()
        {
            new ToolTip().SetToolTip(pic_Minimality, "最小化");
            new ToolTip().SetToolTip(pic_Maximize, "最大化");
            new ToolTip().SetToolTip(pic_Close, "关闭");
        }

        [Description("鼠标双击时设置窗体最大化、默认状态")]
        private void SwitchWindowState()
        {
            if (FunGetFormState != null)
            {
                var state = FunGetFormState();
                state = state == FormWindowState.Maximized
                    ? FormWindowState.Normal
                    : FormWindowState.Maximized;
                ActionMouseDouble?.Invoke(state);
                SetPictureMaxIcon();
            }
        }

        [Description("设置最大化图标")]
        private void SetPictureMaxIcon()
        {
            if (FunGetFormState == null) return;

            var state = FunGetFormState();
            switch (state)
            {
                case FormWindowState.Normal:
                    pic_Maximize.BackgroundImage = Resources.FormTitle_最大化1;
                    break;
                default:
                    pic_Maximize.BackgroundImage = Resources.FormTitle_最大化;
                    break;
            }
        }

        /// 

        /// 获取时间串(格式：2008年08月08日 10:20:06)
        /// 
        /// 
        private string GetDate()
        {
            DateTime ts = DateTime.Now;
            var str = new StringBuilder();
            str.Append($"{ts.Year}年");
            str.Append($"{ts.Month.ToString().PadLeft(2, '0')}月");
            str.Append($"{ts.Day.ToString().PadLeft(2, '0')}日");
            return str.ToString();
        }
        /// 

        /// 获取时间串(格式：10:20:06)
        /// 
        /// 
        private string GetTime()
        {
            DateTime ts = DateTime.Now;
            var str = new StringBuilder();
            str.Append($"{ts.Hour.ToString().PadLeft(2, '0')}:");
            str.Append($"{ts.Minute.ToString().PadLeft(2, '0')}:");
            str.Append($"{ts.Second.ToString().PadLeft(2, '0')}");
            return str.ToString();
        }

        /// 

        /// 设置LOGO
        /// 
        /// LOGO图像
        /// LOGO的宽度
        public void SetLogo(Bitmap bmp, int logoWidth)
        {
            pic_Logo.Visible = true;
            pic_Logo.BackgroundImage = bmp;
            pic_Logo.Width = logoWidth;
        }
    }
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249