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该控件是继承于 Control 基类开发的。
1 ///
2 /// 分割线控件
3 ///
4 [ToolboxItem(true)]
5 [Description("分割线控件")]
6 [DefaultProperty("Text")]
7 [DefaultEvent("TextChanged")]
8 public partial class HalvingLineExt : Control
9 {
10 #region 停用事件
11
12 [Browsable(false)]
13 [EditorBrowsable(EditorBrowsableState.Never)]
14 public new event EventHandler BackgroundImageChanged;
15
16 [Browsable(false)]
17 [EditorBrowsable(EditorBrowsableState.Never)]
18 public new event EventHandler BackgroundImageLayoutChanged;
19
20 [Browsable(false)]
21 [EditorBrowsable(EditorBrowsableState.Never)]
22 public new event EventHandler Click;
23
24 [Browsable(false)]
25 [EditorBrowsable(EditorBrowsableState.Never)]
26 public new event EventHandler DoubleClick;
27
28 [Browsable(false)]
29 [EditorBrowsable(EditorBrowsableState.Never)]
30 public new event MouseEventHandler MouseClick;
31
32 [Browsable(false)]
33 [EditorBrowsable(EditorBrowsableState.Never)]
34 public new event MouseEventHandler MouseDoubleClick;
35
36 [Browsable(false)]
37 [EditorBrowsable(EditorBrowsableState.Never)]
38 public new event UICuesEventHandler ChangeUICues;
39
40 [Browsable(false)]
41 [EditorBrowsable(EditorBrowsableState.Never)]
42 public new event MouseEventHandler ImeModeChanged;
43
44 [Browsable(false)]
45 [EditorBrowsable(EditorBrowsableState.Never)]
46 public new event EventHandler Validated;
47
48 [Browsable(false)]
49 [EditorBrowsable(EditorBrowsableState.Never)]
50 public new event CancelEventHandler Validating;
51
52 [Browsable(false)]
53 [EditorBrowsable(EditorBrowsableState.Never)]
54 public new event EventHandler Enter;
55
56 [Browsable(false)]
57 [EditorBrowsable(EditorBrowsableState.Never)]
58 public new event EventHandler Leave;
59
60 [Browsable(false)]
61 [EditorBrowsable(EditorBrowsableState.Never)]
62 public new event KeyEventHandler KeyDown;
63
64 [Browsable(false)]
65 [EditorBrowsable(EditorBrowsableState.Never)]
66 public new event KeyPressEventHandler KeyPress;
67
68 [Browsable(false)]
69 [EditorBrowsable(EditorBrowsableState.Never)]
70 public new event KeyEventHandler KeyUp;
71
72 [Browsable(false)]
73 [EditorBrowsable(EditorBrowsableState.Never)]
74 public new event PreviewKeyDownEventHandler PreviewKeyDown;
75
76 [Browsable(false)]
77 [EditorBrowsable(EditorBrowsableState.Never)]
78 public new event EventHandler TabIndexChanged;
79
80 [Browsable(false)]
81 [EditorBrowsable(EditorBrowsableState.Never)]
82 public new event EventHandler TabStopChanged;
83
84 [Browsable(false)]
85 [EditorBrowsable(EditorBrowsableState.Never)]
86 public new event DragEventHandler DragDrop;
87
88 [Browsable(false)]
89 [EditorBrowsable(EditorBrowsableState.Never)]
90 public new event DragEventHandler DragEnter;
91
92 [Browsable(false)]
93 [EditorBrowsable(EditorBrowsableState.Never)]
94 public new event EventHandler DragLeave;
95
96 [Browsable(false)]
97 [EditorBrowsable(EditorBrowsableState.Never)]
98 public new event DragEventHandler DragOver;
99
100 [Browsable(false)]
101 [EditorBrowsable(EditorBrowsableState.Never)]
102 public new event GiveFeedbackEventHandler GiveFeedback;
103
104 [Browsable(false)]
105 [EditorBrowsable(EditorBrowsableState.Never)]
106 public new event QueryContinueDragEventHandler QueryContinueDrag;
107
108 [Browsable(false)]
109 [EditorBrowsable(EditorBrowsableState.Never)]
110 public new event EventHandler RightToLeftChanged;
111
112 [Browsable(false)]
113 [EditorBrowsable(EditorBrowsableState.Never)]
114 public new event EventHandler ContextMenuStripChanged;
115
116 #endregion
117
118 #region 新增属性
119
120 #region 线条
121
122 private LineOrientations lineOrientation = LineOrientations.Horizontal;
123 ///
124 ///线条方向
125 ///
126 [DefaultValue(LineOrientations.Horizontal)]
127 [Description("线条方向")]
128 public LineOrientations LineOrientation
129 {
130 get { return this.lineOrientation; }
131 set
132 {
133 if (this.lineOrientation == value)
134 return;
135
136 this.lineOrientation = value;
137 if (this.DesignMode)
138 {
139 this.SetBounds(this.Location.X, this.Location.Y, this.Height, this.Width, BoundsSpecified.Size);
140 }
141 this.Invalidate();
142 }
143 }
144
145 private int lineThickness = 2;
146 ///
147 ///线条厚度
148 ///
149 [DefaultValue(2)]
150 [Description("线条厚度")]
151 public int LineThickness
152 {
153 get { return this.lineThickness; }
154 set
155 {
156 if (this.lineThickness == value || value 1)
157 return;
158
159 this.lineThickness = value;
160 this.Invalidate();
161 }
162 }
163
164 private bool lineCircular = false;
165 ///
166 ///线条圆角
167 ///
168 [DefaultValue(false)]
169 [Description("线条圆角")]
170 public bool LineCircular
171 {
172 get { return this.lineCircular; }
173 set
174 {
175 if (this.lineCircular == value)
176 return;
177
178 this.lineCircular = value;
179 this.Invalidate();
180 }
181 }
182
183 private Color lineColor = Color.YellowGreen;
184 ///
185 /// 线条颜色
186 ///
187 [DefaultValue(typeof(Color), "YellowGreen")]
188 [Description("线条颜色")]
189 [Editor(typeof(ColorEditorExt), typeof(System.Drawing.Design.UITypeEditor))]
190 public Color LineColor
191 {
192 get { return this.lineColor; }
193 set
194 {
195 if (this.lineColor == value)
196 return;
197 this.lineColor = value;
198 this.Invalidate();
199 }
200 }
201
202 #endregion
203
204 #region 文本
205
206 private TextOrientations textOrientation = TextOrientations.Left;
207 ///
208 ///文本方向
209 ///
210 [DefaultValue(TextOrientations.Left)]
211 [Description("文本方向")]
212 public TextOrientations TextOrientation
213 {
214 get { return this.textOrientation; }
215 set
216 {
217 if (this.textOrientation == value)
218 return;
219
220 this.textOrientation = value;
221 this.Invalidate();
222 }
223 }
224
225 private TextAligns textAlign = TextAligns.Center;
226 ///
227 ///文本对齐方式
228 ///
229 [DefaultValue(TextAligns.Center)]
230 [Description("文本对齐方式")]
231 public TextAligns TextAlign
232 {
233 get { return this.textAlign; }
234 set
235 {
236 if (this.textAlign == value)
237 return;
238
239 this.textAlign = value;
240 this.Invalidate();
241 }
242 }
243
244 private int textDistance = 40;
245 ///
246 ///文本间距
247 ///
248 [DefaultValue(40)]
249 [Description("文本间距")]
250 public int TextDistance
251 {
252 get { return this.textDistance; }
253 set
254 {
255 if (this.textDistance == value || value 0)
256 return;
257 this.textDistance = value;
258 this.Invalidate();
259 }
260 }
261
262 #endregion
263
264 #endregion
265
266 #region 停用属性
267
268 [Browsable(false)]
269 [EditorBrowsable(EditorBrowsableState.Never)]
270 public new Image BackgroundImage { get; set; }
271
272 [Browsable(false)]
273 [EditorBrowsable(EditorBrowsableState.Never)]
274 public new ImageLayout BackgroundImageLayout { get; set; }
275
276 [Browsable(false)]
277 [EditorBrowsable(EditorBrowsableState.Never)]
278 public new int TabIndex
279 {
280 get { return 0; }
281 set { base.TabIndex = 0; }
282 }
283
284 [Browsable(false)]
285 [EditorBrowsable(EditorBrowsableState.Never)]
286 public new bool TabStop
287 {
288 get { return false; }
289 set { base.TabStop = false; }
290 }
291
292 [Browsable(false)]
293 [EditorBrowsable(EditorBrowsableState.Never)]
294 public new bool CausesValidation { get; set; }
295
296 [Browsable(false)]
297 [EditorBrowsable(EditorBrowsableState.Never)]
298 public override bool AllowDrop
299 {
300 get
301 {
302 return base.AllowDrop;
303 }
304 set
305 {
306 base.AllowDrop = value;
307 }
308 }
309
310 [Browsable(false)]
311 [EditorBrowsable(EditorBrowsableState.Never)]
312 public override RightToLeft RightToLeft
313 {
314 get
315 {
316 return base.RightToLeft;
317 }
318 set
319 {
320 base.RightToLeft = value;
321 }
322 }
323
324 [Browsable(false)]
325 [EditorBrowsable(EditorBrowsableState.Never)]
326 public override ContextMenuStrip ContextMenuStrip
327 {
328 get
329 {
330 return base.ContextMenuStrip;
331 }
332 set
333 {
334 base.ContextMenuStrip = value;
335 }
336 }
337
338 [Browsable(false)]
339 [EditorBrowsable(EditorBrowsableState.Never)]
340 protected override ImeMode DefaultImeMode
341 {
342 get
343 {
344 return System.Windows.Forms.ImeMode.Disable;
345 }
346 }
347
348 [Browsable(false)]
349 [EditorBrowsable(EditorBrowsableState.Never)]
350 public new ImeMode ImeMode { get; set; }
351 #endregion
352
353 #region 重写属性
354
355 protected override Size DefaultSize
356 {
357 get
358 {
359 return new Size(200, 23); ;
360 }
361 }
362
363 public override string Text
364 {
365 get { return base.Text; }
366 set
367 {
368
369 if (base.Text == value)
370 return;
371
372 base.Text = value;
373 this.Invalidate();
374 }
375 }
376
377 [DefaultValue(typeof(Color), "Transparent")]
378 [Editor(typeof(ColorEditorExt), typeof(System.Drawing.Design.UITypeEditor))]
379 public override Color BackColor
380 {
381 get { return base.BackColor; }
382 set { base.BackColor = value; }
383 }
384
385 [DefaultValue(typeof(Color), "109, 109, 109")]
386 [Editor(typeof(ColorEditorExt), typeof(System.Drawing.Design.UITypeEditor))]
387 public override Color ForeColor
388 {
389 get { return base.ForeColor; }
390 set { base.ForeColor = value; }
391 }
392
393 #endregion
394
395 public HalvingLineExt()
396 {
397 SetStyle(ControlStyles.UserPaint, true);
398 SetStyle(ControlStyles.AllPaintingInWmPaint, true);
399 SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
400 SetStyle(ControlStyles.ResizeRedraw, true);
401 SetStyle(ControlStyles.SupportsTransparentBackColor, true);
402
403 this.BackColor = Color.Transparent;
404 this.ForeColor = Color.FromArgb(109, 109, 109);
405 }
406
407 #region 重写
408
409 protected override void OnPaint(PaintEventArgs e)
410 {
411 base.OnPaint(e);
412
413 Graphics g = e.Graphics;
414
415 int text_padding = 2;
416 SizeF text_size = SizeF.Empty;
417 RectangleF text_rect = RectangleF.Empty;
418
419 Pen line_pen = new Pen(this.LineColor, this.LineThickness);
420 int circular = this.lineCircular ? this.LineThickness : 0;
421 PointF line_left_s = PointF.Empty;
422 PointF line_left_e = PointF.Empty;
423 PointF line_right_s = PointF.Empty;
424 PointF line_right_e = PointF.Empty;
425
426 #region 文字
427 if (!String.IsNullOrEmpty(this.Text))
428 {
429 SolidBrush text_sb = new SolidBrush(this.ForeColor);
430 StringFormat text_sf = null;
431
432 #region
433 if (this.LineOrientation == LineOrientations.Horizontal)
434 {
435 text_size = g.MeasureString(this.Text, this.Font, 1000, text_sf);
436 #region
437 float y = 0;
438 if (this.textAlign == TextAligns.Top)
439 {
440 y = (this.ClientRectangle.Height - (this.lineThickness + text_size.Height)) / 2f;
441 }
442 else if (this.textAlign == TextAligns.Center)
443 {
444 y = (this.ClientRectangle.Height - text_size.Height) / 2f;
445 }
446 else if (this.textAlign == TextAligns.Bottom)
447 {
448 y = (this.ClientRectangle.Height - (this.lineThickness + text_padding + text_size.Height)) / 2f + this.lineThickness+ text_padding;
449 }
450 #endregion
451 if (this.TextOrientation == TextOrientations.Left)
452 {
453 text_rect = new RectangleF(this.ClientRectangle.X + this.textDistance, y, text_size.Width, text_size.Height);
454 }
455 else
456 {
457 text_rect = new RectangleF(this.ClientRectangle.Right - this.textDistance - text_size.Width, y, text_size.Width, text_size.Height);
458 }
459 }
460 #endregion
461 #region
462 else
463 {
464 text_sf = new StringFormat() { FormatFlags = StringFormatFlags.DirectionVertical };
465 text_size = g.MeasureString(this.Text, this.Font, 1000, text_sf);
466 #region
467 float x = 0;
468 if (this.textAlign == TextAligns.Top)
469 {
470 x = (this.ClientRectangle.Width - (this.lineThickness + text_size.Width)) / 2f;
471 }
472 else if (this.textAlign == TextAligns.Center)
473 {
474 x = (this.ClientRectangle.Width - text_size.Width) / 2f;
475 }
476 else if (this.textAlign == TextAligns.Bottom)
477 {
478 x = (this.ClientRectangle.Width - (this.lineThickness + text_padding + text_size.Width)) / 2f + this.lineThickness + text_padding;
479 }
480 #endregion
481 if (this.TextOrientation == TextOrientations.Left)
482 {
483 text_rect = new RectangleF(x, this.ClientRectangle.Y + this.textDistance, text_size.Width, text_size.Height);
484 }
485 else
486 {
487 text_rect = new RectangleF(x, this.ClientRectangle.Bottom - this.textDistance - text_size.Height, text_size.Width, text_size.Height);
488 }
489 }
490 #endregion
491
492 g.DrawString(this.Text, this.Font, text_sb, text_rect, text_sf);
493 text_sb.Dispose();
494 if (text_sf != null)
495 {
496 text_sf.Dispose();
497 }
498 }
499 #endregion
500
501 #region 线条
502 #region 两条线
503 if (!String.IsNullOrEmpty(this.Text) && this.textAlign == TextAligns.Center)
504 {
505 if (this.LineOrientation == LineOrientations.Horizontal)
506 {
507 #region
508 float y = 0;
509 if (this.textAlign == TextAligns.Top)
510 {
511 y = text_rect.Bottom + this.LineThickness / 2f;
512 }
513 else if (this.textAlign == TextAligns.Center)
514 {
515 y = this.ClientRectangle.Height / 2f;
516 }
517 else if (this.textAlign == TextAligns.Bottom)
518 {
519 y = text_rect.Y - this.LineThickness / 2f;
520 }
521 #endregion
522 line_left_s = new PointF(this.ClientRectangle.X + circular, y);
523 line_left_e = new PointF(text_rect.X - text_padding, y);
524 line_right_s = new PointF(text_rect.Right + text_padding, y);
525 line_right_e = new PointF(this.ClientRectangle.Right - circular, y);
526 }
527 else
528 {
529 #region
530 float x = 0;
531 if (this.textAlign == TextAligns.Top)
532 {
533 x = text_rect.Right + this.LineThickness / 2f;
534 }
535 else if (this.textAlign == TextAligns.Center)
536 {
537 x = this.ClientRectangle.Width / 2f;
538 }
539 else if (this.textAlign == TextAligns.Bottom)
540 {
541 x = text_rect.X - this.LineThickness / 2f;
542 }
543 #endregion
544 line_left_s = new PointF(x, this.ClientRectangle.Y + circular);
545 line_left_e = new PointF(x, text_rect.Y - text_padding);
546 line_right_s = new PointF(x, text_rect.Bottom + text_padding);
547 line_right_e = new PointF(x, this.ClientRectangle.Bottom - circular);
548 }
549 if (this.lineCircular)
550 {
551 g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
552 line_pen.StartCap = LineCap.Round;
553 g.DrawLine(line_pen, line_left_s, line_left_e);
554 line_pen.StartCap = LineCap.Flat;
555 line_pen.EndCap = LineCap.Round;
556 g.DrawLine(line_pen, line_right_s, line_right_e);
557 }
558 else
559 {
560 g.DrawLine(line_pen, line_left_s, line_left_e);
561 g.DrawLine(line_pen, line_right_s, line_right_e);
562 }
563 }
564 #endregion
565 #region 一条线
566 else
567 {
568 if (this.LineOrientation == LineOrientations.Horizontal)
569 {
570 #region
571 float y = 0;
572 if (this.textAlign == TextAligns.Top)
573 {
574 y = text_rect.Bottom + this.LineThickness / 2f;
575 }
576 else if (this.textAlign == TextAligns.Center)
577 {
578 y = this.ClientRectangle.Height / 2f;
579 }
580 else if (this.textAlign == TextAligns.Bottom)
581 {
582 y = text_rect.Y- text_padding - this.LineThickness / 2f;
583 }
584 #endregion
585 line_left_s = new PointF(this.ClientRectangle.X + circular, y);
586 line_left_e = new PointF(this.ClientRectangle.Right - circular, y);
587 }
588 else
589 {
590 #region
591 float x = 0;
592 if (this.textAlign == TextAligns.Top)
593 {
594 x = text_rect.Right + this.LineThickness / 2f;
595 }
596 else if (this.textAlign == TextAligns.Center)
597 {
598 x = this.ClientRectangle.Width / 2f;
599 }
600 else if (this.textAlign == TextAligns.Bottom)
601 {
602 x = text_rect.X - text_padding - this.LineThickness / 2f;
603 }
604 #endregion
605 line_left_s = new PointF(x, this.ClientRectangle.Y + circular);
606 line_left_e = new PointF(x, this.ClientRectangle.Bottom - circular);
607 }
608 if