MyRectagle類代碼實現如下：
class MyRectangle
2 {
3 /**//// <summary>
4 /// The x-coordinate of the upper-left corner of the main rectangle
5 /// </summary>
6 private int x;
7
8 /**//// <summary>
9 /// The star x-coordinate when you draw the main rectangle
10 /// </summary>
11 private int downPointX;
12
13 /**//// <summary>
14 /// The y-coordinate of the upper-left corner of the main rectangle
15 /// </summary>
16 private int y;
17
18 /**//// <summary>
19 /// The star y-coordinate when you draw the main rectangle
20 /// </summary>
21 private int downPointY;
22
23 /**//// <summary>
24 /// The width of the main rectangle
25 /// </summary>
26 private int width;
27
28 /**//// <summary>
29 /// The height of the main rectangle
30 /// </summary>
31 private int height;
32
33 /**//// <summary>
34 /// The least width of the main rectangle
35 /// </summary>
36 private int minWidth;
37
38 /**//// <summary>
39 /// The least height of the main rectangle
40 /// </summary>
41 private int minHeight;
42
43 /**//// <summary>
44 /// Sign the main rectangle is on change size mode or not
45 /// </summary>
46 private bool changeSizeMode;
47
48 /**//// <summary>
49 /// Sign the main rectangle is on move mode or not
50 /// </summary>
51 private bool moveMode;
52
53 /**//// <summary>
54 /// Sign the current mouse position is on the upper-left corner of the main rectangle or not
55 /// </summary>
56 private bool mouSEOnLeftTop;
57 /**//// <summary>
58 /// Sign the current mouse position is on the middle point of the left line of the main rectangle or not
59 /// </summary>
60 private bool mouSEOnLeftMiddle;
61 /**//// <summary>
62 /// Sign the current mouse position is on the bottom-left corner of the main rectangle or not
63 /// </summary>
64 private bool mouSEOnLeftBottom;
65
66 /**//// <summary>
67 /// Sign the current mouse position is on the upper-right corner of the mian rectangle or not
68 /// </summary>
69 private bool mouSEOnRightTop;
70 /**//// <summary>
71 /// 鼠標落點在右中點標志
72 /// </summary>
73 private bool mouSEOnRightMiddle;
74 /**//// <summary>
75 /// Sign the current mouse position is on the middle point of the right line of the main rectangle or not
76 /// </summary>
77 private bool mouSEOnRightBottom;
78
79 /**//// <summary>
80 /// Sign the current mouse position is on the middle point of the top line of the main rectangle or not
81 /// </summary>
82 private bool mouSEOnTopMiddle;
83 /**//// <summary>
84 /// Sign the current mouse position is on the middle point of the bottom line of the main rectangle or not
85 /// </summary>
86 private bool mouSEOnBottomMiddle;
87
88 /**//// <summary>
89 /// Sign the current mouse position is in the main rectangle or not
90 /// </summary>
91 private bool mouSEOnMiddle;
92 /**//// <summary>
93 /// The width of the 8 little rectangles that on the 4 corners and the 4 middle points that of the 4 lines of the main rectangle
94 /// </summary>
95 private int littleRectangleWidth;
96 /**//// <summary>
97 /// The height of the 8 little rectangles that on the 4 corners and the 4 middle points that of the 4 lines of the main rectangle
98 /// </summary>
99 private int littleRectangleHeight;
100
101 /**//// <summary>
102 /// The little rectangle on the upper-left corner of the main rectangle
103 /// </summary>
104 private Rectangle leftTopRectangle;
105 /**//// <summary>
106 /// The little rectangle on the middle point of the left line of the main rectangle
107 /// </summary>
108 private Rectangle leftMiddleRectangle;
109 /**//// <summary>
110 /// The little rectangle on the bottom-left corner of the main rectangle
111 /// </summary>
112 private Rectangle leftBottomRectangle;
113
114 /**//// <summary>
115 /// The little rectangle on the upper-right corner of the main rectangle
116 /// </summary>
117 private Rectangle rightTopRectangle;
118 /**//// <summary>
119 /// The little rectangle on the middle point of the right line of the main rectangle
120 /// </summary>
121 private Rectangle rightMiddleRectangle;
122 /**//// <summary>
123 /// The little rectangle on the bottom-right corner of the main rectangle
124 /// </summary>
125 private Rectangle rightBottomRectangle;
126
127 /**//// <summary>
128 /// The little rectangle on the middle point of the top line of the main rectangle
129 /// </summary>
130 private Rectangle topMiddleRectangle;
131 /**//// <summary>
132 /// The little rectangle on the middle point of the bottom line of the main rectangle
133 /// </summary>
134 private Rectangle bottomMiddleRectangle;
135
136 /**//// <summary>
137 /// The main rectangle
138 /// </summary>
139 private Rectangle rect;
140
141 /**//// <summary>
142 /// The size of the main rectangle
143 /// </summary>
144 private Size size;
145
146 /**//// <summary>
147 /// The background image of the screen
148 /// </summary>
149 private Image backImage;
150
151 /**//// <summary>
152 /// The cursor manner
153 /// </summary>
154 private Cursor myCursor;
155
156 /**//// <summary>
157 /// Gets of sets the x-coordinate of the upper-left corner of the main rectangle
158 /// </summary>
159 public int X
160 {
161 get { return x; }
162 set
163 {
164 x = value;
165 rect.X = value;
166 }
167 }
168 /**//// <summary>
169 /// Gets of sets the y-coordinate of the upper-left corner of the main rectangle
170 /// </summary>
171 public int Y
172 {
173 get { return y; }
174 set
175 {
176 y = value;
177 rect.Y = value;
178 }
179 }
180
181 /**//// <summary>
182 /// Gets of sets the star x-coordinate when you draw the main rectangle
183 /// </summary>
184 public int DownPointX
185 {
186 get { return downPointX; }
187 set { downPointX = value; }
188 }
189 /**//// <summary>
190 /// Gets of sets the star y-coordinate when you draw the main rectangle
191 /// </summary>
192 public int DownPointY
193 {
194 get { return downPointY; }
195 set { downPointY = value; }
196 }
197 /**//// <summary>
198 /// Gets of sets the width of the main rectangle
199 /// </summary>
200 public int Width
201 {
202 get { return width; }
203 set
204 {
205 width = value;
206 rect.Width = value;
207 }
208 }
209 /**//// <summary>
210 /// Gets or sets the height of the main rectangle
211 /// </summary>
212 public int Height
213 {
214 get { return height; }
215 set
216 {
217 height = value;
218 rect.Height = value;
219 }
220 }
221
222 /**//// <summary>
223 /// Gets or sets the least width of the main rectangle
224 /// </summary>
225 public int MinWidth
226 {
227 get { return minWidth; }
228 set { minWidth = value; }
229 }
230
231 /**//// <summary>
232 /// Gets or sets the least height of the main rectangle
233 /// </summary>
234 public int MinHeight
235 {
236 get { return minHeight; }
237 set { minHeight = value; }
238 }
239
240 /**//// <summary>
241 /// Gets or sets the sign of the change size mode of the main rectangle
242 /// </summary>
243 public bool ChangeSizeMode
244 {
245 get { return changeSizeMode; }
246 set
247 {
248 changeSizeMode = value;
249 moveMode = !value;
250 }
251 }
252
253 /**//// <summary>
254 /// Gets or sets the sign of the move mode of the main rectangle
255 /// </summary>
256 public bool MoveMode
257 {
258 get { return moveMode; }
259 set
260 {
261 moveMode = value;
262 changeSizeMode = !value;
263 }
264 }
265
266 /**//// <summary>
267 /// Gets or sets the sign of current mouse position
268 /// (is on the upper-left corner of the main rectangle or not)
269 /// </summary>
270 public bool MouSEOnLeftTop
271 {
272 get { return mouSEOnLeftTop; }
273 set
274 {
275 mouSEOnLeftTop = value;
276 if (value)
277 {
278 mouSEOnLeftMiddle = false;
279 mouSEOnLeftBottom = false;
280
281 mouSEOnRightTop = false;
282 mouSEOnRightMiddle = false;
283 mouSEOnRightBottom = false;
284
285 mouSEOnTopMiddle = false;
286 mouSEOnBottomMiddle = false;
287
288 mouSEOnMiddle = false;
289 }
290 }
291 }
292 /**//// <summary>
293 /// Gets or sets the sign of current mouse position
294 /// (is on the middle point of the left line of the main rectangle or not)
295 /// </summary>
296 public bool MouSEOnLeftMiddle
297 {
298 get { return mouSEOnLeftMiddle; }
299 set
300 {
301 mouSEOnLeftMiddle = value;
302 if (value)
303 {
304 mouSEOnLeftTop = false;
305 mouSEOnLeftBottom = false;
306
307 mouSEOnRightTop = false;
308 mouSEOnRightMiddle = false;
309 mouSEOnRightBottom = false;
310
311 mouSEOnTopMiddle = false;
312 mouSEOnBottomMiddle = false;
313
314 mouSEOnMiddle = false;
315 }
316 }
317 }
318 /**//// <summary>
319 /// Gets or sets the sign of current mouse position
320 /// (is on the bottom-left corner of the main rectangle or not)
321 /// </summary>
322 public bool MouSEOnLeftBottom
323 {
324 get { return mouSEOnLeftBottom; }
325 set
326 {
327 mouSEOnLeftBottom = value;
328 if (value)
329 {
330 mouSEOnLeftTop = false;
331 mouSEOnLeftMiddle = false;
332
333 mouSEOnRightTop = false;
334 mouSEOnRightMiddle = false;
335 mouSEOnRightBottom = false;
336
337 mouSEOnTopMiddle = false;
338 mouSEOnBottomMiddle = false;
339
340 mouSEOnMiddle = false;
341 }
342 }
343 }
344
345 /**//// <summary>
346 /// Gets or sets the sign of current mouse position
347 /// (is on the upper-right corner of the main rectangle or not)
348 /// </summary>
349 public bool MouSEOnRightTop
350 {
351 get { return mouSEOnRightTop; }
352 set
353 {
354 mouSEOnRightTop = value;
355 if (value)
356 {
357 mouSEOnLeftTop = false;
358 MouSEOnLeftMiddle = false;
359 mouSEOnLeftBottom = false;
360
361 mouSEOnRightMiddle = false;
362 mouSEOnRightBottom = false;
363
364 mouSEOnTopMiddle = false;
365 mouSEOnBottomMiddle = false;
366
367 mouSEOnMiddle = false;
368 }
369 }
370 }
371 /**//// <summary>
372 /// Gets or sets the sign of current mouse position
373 /// (is on the middle point of the right line of the main rectangle or not)
374 /// </summary>
375 public bool MouSEOnRightMiddle
376 {
377 get { return mouSEOnRightMiddle; }
378 set
379 {
380 mouSEOnRightMiddle = value;
381 if (value)
382 {
383 mouSEOnLeftTop = false;
384 mouSEOnLeftBottom = false;
385 mouSEOnLeftMiddle = false;
386
387 mouSEOnRightTop = false;
388 mouSEOnRightBottom = false;
389
390 mouSEOnTopMiddle = false;
391 mouSEOnBottomMiddle = false;
392
393 mouSEOnMiddle = false;
394 }
395 }
396 }
397 /**//// <summary>
398 /// Gets or sets the sign of current mouse position
399 /// (is on the bottom-right corner of the main rectangle or not)
400 /// </summary>
401 public bool MouSEOnRightBottom
402 {
403 get { return mouSEOnRightBottom; }
404 set
405 {
406 mouSEOnRightBottom = value;
407 if (value)
408 {
409 mouSEOnLeftTop = false;
410 mouSEOnLeftBottom = false;
411 mouSEOnLeftMiddle = false;
412
413 mouSEOnRightTop = false;
414 mouSEOnRightMiddle = false;
415
416 mouSEOnTopMiddle = false;
417 mouSEOnBottomMiddle = false;
418
419 mouSEOnMiddle = false;
420 }
421 }
422 }
423
424 /**//// <summary>
425 /// Gets or sets the sign of current mouse position
426 /// (is on the middle point of the top line of the main rectangle or not)
427 /// </summary>
428 public bool MouSEOnTopMiddle
429 {
430 get { return mouSEOnTopMiddle; }
431 set
432 {
433 mouSEOnTopMiddle = value;
434 if (value)
435 {
436 mouSEOnLeftTop = false;
437 mouSEOnLeftBottom = false;
438 mouSEOnLeftMiddle = false;
439
440 mouSEOnRightTop = false;
441 mouSEOnRightBottom = false;
442 mouSEOnRightMiddle = false;
443
444 mouSEOnBottomMiddle = false;
445
446 mouSEOnMiddle = false;
447 }
448 }
449 }
450 /**//// <summary>
451 /// Gets or sets the sign of current mouse position
452 /// (is on the middle point of the middle line of the main rectangle or not)
453 /// </summary>
454 public bool MouSEOnBottomMiddle
455 {
456 get { return mouSEOnBottomMiddle; }
457 set
458 {
459 mouSEOnBottomMiddle = value;
460 if (value)
461 {
462 mouSEOnLeftTop = false;
463 mouSEOnLeftBottom = false;
464 mouSEOnLeftMiddle = false;
465
466 mouSEOnRightTop = false;
467 mouSEOnRightBottom = false;
468 mouSEOnRightMiddle = false;
469
470 mouSEOnTopMiddle = false;
471
472 mouSEOnMiddle = false;
473 }
474 }
475 }
476
477 /**//// <summary>
478 /// Gets or sets the sign of current mouse position
479 /// (is in the main rectangle or not)
480 /// </summary>
481 public bool MouSEOnMiddle
482 {
483 get { return mouSEOnMiddle; }
484 set
485 {
486 mouSEOnMiddle = value;
487 if (value)
488 {
489 mouSEOnLeftTop = false;
490 mouSEOnLeftBottom = false;
491 mouSEOnLeftMiddle = false;
492
493 mouSEOnRightTop = false;
494 mouSEOnRightBottom = false;
495 mouSEOnRightMiddle = false;
496
497 mouSEOnTopMiddle = false;
498 MouSEOnBottomMiddle = false;
499 }
500 }
501 }
502 /**//// <summary>
