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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: wx/geometry.h
3 // Purpose: Common Geometry Classes
4 // Author: Stefan Csomor
5 // Modified by:
6 // Created: 08/05/99
7 // RCS-ID:
8 // Copyright: (c) 1999 Stefan Csomor
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #ifndef _WX_GEOMETRY_H_
13 #define _WX_GEOMETRY_H_
14
15 #include "wx/defs.h"
16
17 #if wxUSE_GEOMETRY
18
19 #include "wx/utils.h"
20 #include "wx/gdicmn.h"
21 #include "wx/math.h"
22
23 #ifdef __WXMSW__
24 #define wxMulDivInt32( a , b , c ) ::MulDiv( a , b , c )
25 #elif defined( __WXMAC__ )
26 #define wxMulDivInt32( a , b , c ) ( (wxInt32) ( ( (wxInt64)(a) * (wxInt64)(b) ) / (wxInt64)(c) ) )
27 #else
28 #define wxMulDivInt32( a , b , c ) ((wxInt32)((a)*(((wxDouble)b)/((wxDouble)c))))
29 #endif
30
31 class WXDLLIMPEXP_BASE wxDataInputStream;
32 class WXDLLIMPEXP_BASE wxDataOutputStream;
33
34 // clipping from Cohen-Sutherland
35
36 enum wxOutCode
37 {
38 wxInside = 0x00 ,
39 wxOutLeft = 0x01 ,
40 wxOutRight = 0x02 ,
41 wxOutTop = 0x08 ,
42 wxOutBottom = 0x04
43 };
44
45 class WXDLLEXPORT wxPoint2DInt
46 {
47 public :
48 inline wxPoint2DInt();
49 inline wxPoint2DInt( wxInt32 x , wxInt32 y );
50 inline wxPoint2DInt( const wxPoint2DInt &pt );
51 inline wxPoint2DInt( const wxPoint &pt );
52
53 // noops for this class, just return the coords
54 inline void GetFloor( wxInt32 *x , wxInt32 *y ) const;
55 inline void GetRounded( wxInt32 *x , wxInt32 *y ) const;
56
57 inline wxDouble GetVectorLength() const;
58 wxDouble GetVectorAngle() const;
59 inline void SetVectorLength( wxDouble length );
60 void SetVectorAngle( wxDouble degrees );
61 void SetPolarCoordinates( wxInt32 angle , wxInt32 length );
62 // set the vector length to 1.0, preserving the angle
63 inline void Normalize();
64
65 inline wxDouble GetDistance( const wxPoint2DInt &pt ) const;
66 inline wxDouble GetDistanceSquare( const wxPoint2DInt &pt ) const;
67 inline wxInt32 GetDotProduct( const wxPoint2DInt &vec ) const;
68 inline wxInt32 GetCrossProduct( const wxPoint2DInt &vec ) const;
69
70 // the reflection of this point
71 inline wxPoint2DInt operator-();
72
73 inline wxPoint2DInt& operator=(const wxPoint2DInt& pt);
74 inline wxPoint2DInt& operator+=(const wxPoint2DInt& pt);
75 inline wxPoint2DInt& operator-=(const wxPoint2DInt& pt);
76 inline wxPoint2DInt& operator*=(const wxPoint2DInt& pt);
77 inline wxPoint2DInt& operator*=(wxDouble n);
78 inline wxPoint2DInt& operator*=(wxInt32 n);
79 inline wxPoint2DInt& operator/=(const wxPoint2DInt& pt);
80 inline wxPoint2DInt& operator/=(wxDouble n);
81 inline wxPoint2DInt& operator/=(wxInt32 n);
82 inline operator wxPoint() const;
83 inline bool operator==(const wxPoint2DInt& pt) const;
84 inline bool operator!=(const wxPoint2DInt& pt) const;
85
86 #if wxUSE_STREAMS
87 void WriteTo( wxDataOutputStream &stream ) const;
88 void ReadFrom( wxDataInputStream &stream );
89 #endif // wxUSE_STREAMS
90
91 wxInt32 m_x;
92 wxInt32 m_y;
93 };
94
95 inline wxPoint2DInt operator+(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2);
96 inline wxPoint2DInt operator-(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2);
97 inline wxPoint2DInt operator*(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2);
98 inline wxPoint2DInt operator*(wxInt32 n , const wxPoint2DInt& pt);
99 inline wxPoint2DInt operator*(wxInt32 n , const wxPoint2DInt& pt);
100 inline wxPoint2DInt operator*(const wxPoint2DInt& pt , wxInt32 n);
101 inline wxPoint2DInt operator*(const wxPoint2DInt& pt , wxInt32 n);
102 inline wxPoint2DInt operator/(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2);
103 inline wxPoint2DInt operator/(const wxPoint2DInt& pt , wxInt32 n);
104 inline wxPoint2DInt operator/(const wxPoint2DInt& pt , wxInt32 n);
105
106 inline wxPoint2DInt::wxPoint2DInt()
107 {
108 m_x = 0;
109 m_y = 0;
110 }
111
112 inline wxPoint2DInt::wxPoint2DInt( wxInt32 x , wxInt32 y )
113 {
114 m_x = x;
115 m_y = y;
116 }
117
118 inline wxPoint2DInt::wxPoint2DInt( const wxPoint2DInt &pt )
119 {
120 m_x = pt.m_x;
121 m_y = pt.m_y;
122 }
123
124 inline wxPoint2DInt::wxPoint2DInt( const wxPoint &pt )
125 {
126 m_x = pt.x;
127 m_y = pt.y;
128 }
129
130 inline void wxPoint2DInt::GetFloor( wxInt32 *x , wxInt32 *y ) const
131 {
132 if ( x )
133 *x = m_x;
134 if ( y )
135 *y = m_y;
136 }
137
138 inline void wxPoint2DInt::GetRounded( wxInt32 *x , wxInt32 *y ) const
139 {
140 GetFloor(x, y);
141 }
142
143 inline wxDouble wxPoint2DInt::GetVectorLength() const
144 {
145 // cast needed MIPSpro compiler under SGI
146 return sqrt( (double)(m_x)*(m_x) + (m_y)*(m_y) );
147 }
148
149 inline void wxPoint2DInt::SetVectorLength( wxDouble length )
150 {
151 wxDouble before = GetVectorLength();
152 m_x = (wxInt32)(m_x * length / before);
153 m_y = (wxInt32)(m_y * length / before);
154 }
155
156 inline void wxPoint2DInt::Normalize()
157 {
158 SetVectorLength( 1 );
159 }
160
161 inline wxDouble wxPoint2DInt::GetDistance( const wxPoint2DInt &pt ) const
162 {
163 return sqrt( GetDistanceSquare( pt ) );
164 }
165
166 inline wxDouble wxPoint2DInt::GetDistanceSquare( const wxPoint2DInt &pt ) const
167 {
168 return ( (pt.m_x-m_x)*(pt.m_x-m_x) + (pt.m_y-m_y)*(pt.m_y-m_y) );
169 }
170
171 inline wxInt32 wxPoint2DInt::GetDotProduct( const wxPoint2DInt &vec ) const
172 {
173 return ( m_x * vec.m_x + m_y * vec.m_y );
174 }
175
176 inline wxInt32 wxPoint2DInt::GetCrossProduct( const wxPoint2DInt &vec ) const
177 {
178 return ( m_x * vec.m_y - vec.m_x * m_y );
179 }
180
181 inline wxPoint2DInt::operator wxPoint() const
182 {
183 return wxPoint( m_x, m_y);
184 }
185
186 inline wxPoint2DInt wxPoint2DInt::operator-()
187 {
188 return wxPoint2DInt( -m_x, -m_y);
189 }
190
191 inline wxPoint2DInt& wxPoint2DInt::operator=(const wxPoint2DInt& pt)
192 {
193 m_x = pt.m_x;
194 m_y = pt.m_y;
195 return *this;
196 }
197
198 inline wxPoint2DInt& wxPoint2DInt::operator+=(const wxPoint2DInt& pt)
199 {
200 m_x = m_x + pt.m_x;
201 m_y = m_y + pt.m_y;
202 return *this;
203 }
204
205 inline wxPoint2DInt& wxPoint2DInt::operator-=(const wxPoint2DInt& pt)
206 {
207 m_x = m_x - pt.m_x;
208 m_y = m_y - pt.m_y;
209 return *this;
210 }
211
212 inline wxPoint2DInt& wxPoint2DInt::operator*=(const wxPoint2DInt& pt)
213 {
214 m_x = m_x + pt.m_x;
215 m_y = m_y + pt.m_y;
216 return *this;
217 }
218
219 inline wxPoint2DInt& wxPoint2DInt::operator/=(const wxPoint2DInt& pt)
220 {
221 m_x = m_x - pt.m_x;
222 m_y = m_y - pt.m_y;
223 return *this;
224 }
225
226 inline bool wxPoint2DInt::operator==(const wxPoint2DInt& pt) const
227 {
228 return m_x == pt.m_x && m_y == pt.m_y;
229 }
230
231 inline bool wxPoint2DInt::operator!=(const wxPoint2DInt& pt) const
232 {
233 return m_x != pt.m_x || m_y != pt.m_y;
234 }
235
236 inline wxPoint2DInt operator+(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2)
237 {
238 return wxPoint2DInt( pt1.m_x + pt2.m_x , pt1.m_y + pt2.m_y );
239 }
240
241 inline wxPoint2DInt operator-(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2)
242 {
243 return wxPoint2DInt( pt1.m_x - pt2.m_x , pt1.m_y - pt2.m_y );
244 }
245
246
247 inline wxPoint2DInt operator*(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2)
248 {
249 return wxPoint2DInt( pt1.m_x * pt2.m_x , pt1.m_y * pt2.m_y );
250 }
251
252 inline wxPoint2DInt operator*(wxInt32 n , const wxPoint2DInt& pt)
253 {
254 return wxPoint2DInt( pt.m_x * n , pt.m_y * n );
255 }
256
257 inline wxPoint2DInt operator*(wxDouble n , const wxPoint2DInt& pt)
258 {
259 return wxPoint2DInt( (int) (pt.m_x * n) , (int) (pt.m_y * n) );
260 }
261
262 inline wxPoint2DInt operator*(const wxPoint2DInt& pt , wxInt32 n)
263 {
264 return wxPoint2DInt( pt.m_x * n , pt.m_y * n );
265 }
266
267 inline wxPoint2DInt operator*(const wxPoint2DInt& pt , wxDouble n)
268 {
269 return wxPoint2DInt( (int) (pt.m_x * n) , (int) (pt.m_y * n) );
270 }
271
272 inline wxPoint2DInt operator/(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2)
273 {
274 return wxPoint2DInt( pt1.m_x / pt2.m_x , pt1.m_y / pt2.m_y );
275 }
276
277 inline wxPoint2DInt operator/(const wxPoint2DInt& pt , wxInt32 n)
278 {
279 return wxPoint2DInt( pt.m_x / n , pt.m_y / n );
280 }
281
282 inline wxPoint2DInt operator/(const wxPoint2DInt& pt , wxDouble n)
283 {
284 return wxPoint2DInt( (int) (pt.m_x / n) , (int) (pt.m_y / n) );
285 }
286
287 // wxPoint2Ds represent a point or a vector in a 2d coordinate system
288
289 class WXDLLEXPORT wxPoint2DDouble
290 {
291 public :
292 inline wxPoint2DDouble();
293 inline wxPoint2DDouble( wxDouble x , wxDouble y );
294 inline wxPoint2DDouble( const wxPoint2DDouble &pt );
295 wxPoint2DDouble( const wxPoint2DInt &pt )
296 { m_x = (wxDouble) pt.m_x ; m_y = (wxDouble) pt.m_y ; }
297 wxPoint2DDouble( const wxPoint &pt )
298 { m_x = (wxDouble) pt.x ; m_y = (wxDouble) pt.y ; }
299
300 // two different conversions to integers, floor and rounding
301 inline void GetFloor( wxInt32 *x , wxInt32 *y ) const;
302 inline void GetRounded( wxInt32 *x , wxInt32 *y ) const;
303
304 inline wxDouble GetVectorLength() const;
305 wxDouble GetVectorAngle() const ;
306 void SetVectorLength( wxDouble length );
307 void SetVectorAngle( wxDouble degrees );
308 void SetPolarCoordinates( wxDouble angle , wxDouble length );
309 // set the vector length to 1.0, preserving the angle
310 void Normalize();
311
312 inline wxDouble GetDistance( const wxPoint2DDouble &pt ) const;
313 inline wxDouble GetDistanceSquare( const wxPoint2DDouble &pt ) const;
314 inline wxDouble GetDotProduct( const wxPoint2DDouble &vec ) const;
315 inline wxDouble GetCrossProduct( const wxPoint2DDouble &vec ) const;
316
317 // the reflection of this point
318 inline wxPoint2DDouble operator-();
319
320 inline wxPoint2DDouble& operator=(const wxPoint2DDouble& pt);
321 inline wxPoint2DDouble& operator+=(const wxPoint2DDouble& pt);
322 inline wxPoint2DDouble& operator-=(const wxPoint2DDouble& pt);
323 inline wxPoint2DDouble& operator*=(const wxPoint2DDouble& pt);
324 inline wxPoint2DDouble& operator*=(wxDouble n);
325 inline wxPoint2DDouble& operator*=(wxInt32 n);
326 inline wxPoint2DDouble& operator/=(const wxPoint2DDouble& pt);
327 inline wxPoint2DDouble& operator/=(wxDouble n);
328 inline wxPoint2DDouble& operator/=(wxInt32 n);
329
330 inline bool operator==(const wxPoint2DDouble& pt) const;
331 inline bool operator!=(const wxPoint2DDouble& pt) const;
332
333 wxDouble m_x;
334 wxDouble m_y;
335 };
336
337 inline wxPoint2DDouble operator+(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2);
338 inline wxPoint2DDouble operator-(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2);
339 inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2);
340 inline wxPoint2DDouble operator*(wxDouble n , const wxPoint2DDouble& pt);
341 inline wxPoint2DDouble operator*(wxInt32 n , const wxPoint2DDouble& pt);
342 inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxDouble n);
343 inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxInt32 n);
344 inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2);
345 inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxDouble n);
346 inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxInt32 n);
347
348 inline wxPoint2DDouble::wxPoint2DDouble()
349 {
350 m_x = 0.0;
351 m_y = 0.0;
352 }
353
354 inline wxPoint2DDouble::wxPoint2DDouble( wxDouble x , wxDouble y )
355 {
356 m_x = x;
357 m_y = y;
358 }
359
360 inline wxPoint2DDouble::wxPoint2DDouble( const wxPoint2DDouble &pt )
361 {
362 m_x = pt.m_x;
363 m_y = pt.m_y;
364 }
365
366 inline void wxPoint2DDouble::GetFloor( wxInt32 *x , wxInt32 *y ) const
367 {
368 *x = (wxInt32) floor( m_x );
369 *y = (wxInt32) floor( m_y );
370 }
371
372 inline void wxPoint2DDouble::GetRounded( wxInt32 *x , wxInt32 *y ) const
373 {
374 *x = (wxInt32) floor( m_x + 0.5 );
375 *y = (wxInt32) floor( m_y + 0.5);
376 }
377
378 inline wxDouble wxPoint2DDouble::GetVectorLength() const
379 {
380 return sqrt( (m_x)*(m_x) + (m_y)*(m_y) ) ;
381 }
382
383 inline void wxPoint2DDouble::SetVectorLength( wxDouble length )
384 {
385 wxDouble before = GetVectorLength() ;
386 m_x = (m_x * length / before) ;
387 m_y = (m_y * length / before) ;
388 }
389
390 inline wxDouble wxPoint2DDouble::GetDistance( const wxPoint2DDouble &pt ) const
391 {
392 return sqrt( GetDistanceSquare( pt ) );
393 }
394
395 inline wxDouble wxPoint2DDouble::GetDistanceSquare( const wxPoint2DDouble &pt ) const
396 {
397 return ( (pt.m_x-m_x)*(pt.m_x-m_x) + (pt.m_y-m_y)*(pt.m_y-m_y) );
398 }
399
400 inline wxDouble wxPoint2DDouble::GetDotProduct( const wxPoint2DDouble &vec ) const
401 {
402 return ( m_x * vec.m_x + m_y * vec.m_y );
403 }
404
405 inline wxDouble wxPoint2DDouble::GetCrossProduct( const wxPoint2DDouble &vec ) const
406 {
407 return ( m_x * vec.m_y - vec.m_x * m_y );
408 }
409
410 inline wxPoint2DDouble wxPoint2DDouble::operator-()
411 {
412 return wxPoint2DDouble( -m_x, -m_y);
413 }
414
415 inline wxPoint2DDouble& wxPoint2DDouble::operator=(const wxPoint2DDouble& pt)
416 {
417 m_x = pt.m_x;
418 m_y = pt.m_y;
419 return *this;
420 }
421
422 inline wxPoint2DDouble& wxPoint2DDouble::operator+=(const wxPoint2DDouble& pt)
423 {
424 m_x = m_x + pt.m_x;
425 m_y = m_y + pt.m_y;
426 return *this;
427 }
428
429 inline wxPoint2DDouble& wxPoint2DDouble::operator-=(const wxPoint2DDouble& pt)
430 {
431 m_x = m_x - pt.m_x;
432 m_y = m_y - pt.m_y;
433 return *this;
434 }
435
436 inline wxPoint2DDouble& wxPoint2DDouble::operator*=(const wxPoint2DDouble& pt)
437 {
438 m_x = m_x * pt.m_x;
439 m_y = m_y * pt.m_y;
440 return *this;
441 }
442
443 inline wxPoint2DDouble& wxPoint2DDouble::operator/=(const wxPoint2DDouble& pt)
444 {
445 m_x = m_x / pt.m_x;
446 m_y = m_y / pt.m_y;
447 return *this;
448 }
449
450 inline bool wxPoint2DDouble::operator==(const wxPoint2DDouble& pt) const
451 {
452 return m_x == pt.m_x && m_y == pt.m_y;
453 }
454
455 inline bool wxPoint2DDouble::operator!=(const wxPoint2DDouble& pt) const
456 {
457 return m_x != pt.m_x || m_y != pt.m_y;
458 }
459
460 inline wxPoint2DDouble operator+(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2)
461 {
462 return wxPoint2DDouble( pt1.m_x + pt2.m_x , pt1.m_y + pt2.m_y );
463 }
464
465 inline wxPoint2DDouble operator-(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2)
466 {
467 return wxPoint2DDouble( pt1.m_x - pt2.m_x , pt1.m_y - pt2.m_y );
468 }
469
470
471 inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2)
472 {
473 return wxPoint2DDouble( pt1.m_x * pt2.m_x , pt1.m_y * pt2.m_y );
474 }
475
476 inline wxPoint2DDouble operator*(wxDouble n , const wxPoint2DDouble& pt)
477 {
478 return wxPoint2DDouble( pt.m_x * n , pt.m_y * n );
479 }
480
481 inline wxPoint2DDouble operator*(wxInt32 n , const wxPoint2DDouble& pt)
482 {
483 return wxPoint2DDouble( pt.m_x * n , pt.m_y * n );
484 }
485
486 inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxDouble n)
487 {
488 return wxPoint2DDouble( pt.m_x * n , pt.m_y * n );
489 }
490
491 inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxInt32 n)
492 {
493 return wxPoint2DDouble( pt.m_x * n , pt.m_y * n );
494 }
495
496 inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2)
497 {
498 return wxPoint2DDouble( pt1.m_x / pt2.m_x , pt1.m_y / pt2.m_y );
499 }
500
501 inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxDouble n)
502 {
503 return wxPoint2DDouble( pt.m_x / n , pt.m_y / n );
504 }
505
506 inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxInt32 n)
507 {
508 return wxPoint2DDouble( pt.m_x / n , pt.m_y / n );
509 }
510
511 // wxRect2Ds are a axis-aligned rectangles, each side of the rect is parallel to the x- or m_y- axis. The rectangle is either defined by the
512 // top left and bottom right corner, or by the top left corner and size. A point is contained within the rectangle if
513 // left <= x < right and top <= m_y < bottom , thus it is a half open interval.
514
515 class WXDLLEXPORT wxRect2DDouble
516 {
517 public:
518 wxRect2DDouble()
519 { m_x = m_y = m_width = m_height = 0; }
520 wxRect2DDouble(wxDouble x, wxDouble y, wxDouble w, wxDouble h)
521 { m_x = x; m_y = y; m_width = w; m_height = h; }
522 /*
523 wxRect2DDouble(const wxPoint2DDouble& topLeft, const wxPoint2DDouble& bottomRight);
524 wxRect2DDouble(const wxPoint2DDouble& pos, const wxSize& size);
525 wxRect2DDouble(const wxRect2DDouble& rect);
526 */
527 // single attribute accessors
528
529 inline wxPoint2DDouble GetPosition()
530 { return wxPoint2DDouble(m_x, m_y); }
531 inline wxSize GetSize()
532 { return wxSize((int) m_width, (int) m_height); }
533
534 // for the edge and corner accessors there are two setters conterparts, the Set.. functions keep the other corners at their
535 // position whenever sensible, the Move.. functions keep the size of the rect and move the other corners apropriately
536
537 inline wxDouble GetLeft() const { return m_x; }
538 inline void SetLeft( wxDouble n ) { m_width += m_x - n; m_x = n; }
539 inline void MoveLeftTo( wxDouble n ) { m_x = n; }
540 inline wxDouble GetTop() const { return m_y; }
541 inline void SetTop( wxDouble n ) { m_height += m_y - n; m_y = n; }
542 inline void MoveTopTo( wxDouble n ) { m_y = n; }
543 inline wxDouble GetBottom() const { return m_y + m_height; }
544 inline void SetBottom( wxDouble n ) { m_height += n - (m_y+m_height);}
545 inline void MoveBottomTo( wxDouble n ) { m_y = n - m_height; }
546 inline wxDouble GetRight() const { return m_x + m_width; }
547 inline void SetRight( wxDouble n ) { m_width += n - (m_x+m_width) ; }
548 inline void MoveRightTo( wxDouble n ) { m_x = n - m_width; }
549
550 inline wxPoint2DDouble GetLeftTop() const
551 { return wxPoint2DDouble( m_x , m_y ); }
552 inline void SetLeftTop( const wxPoint2DDouble &pt )
553 { m_width += m_x - pt.m_x; m_height += m_y - pt.m_y; m_x = pt.m_x; m_y = pt.m_y; }
554 inline void MoveLeftTopTo( const wxPoint2DDouble &pt )
555 { m_x = pt.m_x; m_y = pt.m_y; }
556 inline wxPoint2DDouble GetLeftBottom() const
557 { return wxPoint2DDouble( m_x , m_y + m_height ); }
558 inline void SetLeftBottom( const wxPoint2DDouble &pt )
559 { m_width += m_x - pt.m_x; m_height += pt.m_y - (m_y+m_height) ; m_x = pt.m_x; }
560 inline void MoveLeftBottomTo( const wxPoint2DDouble &pt )
561 { m_x = pt.m_x; m_y = pt.m_y - m_height; }
562 inline wxPoint2DDouble GetRightTop() const
563 { return wxPoint2DDouble( m_x+m_width , m_y ); }
564 inline void SetRightTop( const wxPoint2DDouble &pt )
565 { m_width += pt.m_x - ( m_x + m_width ); m_height += m_y - pt.m_y; m_y = pt.m_y; }
566 inline void MoveRightTopTo( const wxPoint2DDouble &pt )
567 { m_x = pt.m_x - m_width; m_y = pt.m_y; }
568 inline wxPoint2DDouble GetRightBottom() const
569 { return wxPoint2DDouble( m_x+m_width , m_y + m_height ); }
570 inline void SetRightBottom( const wxPoint2DDouble &pt )
571 { m_width += pt.m_x - ( m_x + m_width ); m_height += pt.m_y - (m_y+m_height);}
572 inline void MoveRightBottomTo( const wxPoint2DDouble &pt )
573 { m_x = pt.m_x - m_width; m_y = pt.m_y - m_height; }
574 inline wxPoint2DDouble GetCentre() const
575 { return wxPoint2DDouble( m_x+m_width/2 , m_y+m_height/2 ); }
576 inline void SetCentre( const wxPoint2DDouble &pt )
577 { MoveCentreTo( pt ); } // since this is impossible without moving...
578 inline void MoveCentreTo( const wxPoint2DDouble &pt )
579 { m_x += pt.m_x - (m_x+m_width/2) , m_y += pt.m_y -(m_y+m_height/2); }
580 inline wxOutCode GetOutCode( const wxPoint2DDouble &pt ) const
581 { return (wxOutCode) (( ( pt.m_x < m_x ) ? wxOutLeft : 0 ) +
582 ( ( pt.m_x > m_x + m_width ) ? wxOutRight : 0 ) +
583 ( ( pt.m_y < m_y ) ? wxOutTop : 0 ) +
584 ( ( pt.m_y > m_y + m_height ) ? wxOutBottom : 0 )); }
585 inline wxOutCode GetOutcode(const wxPoint2DDouble &pt) const
586 { return GetOutCode(pt) ; }
587 inline bool Contains( const wxPoint2DDouble &pt ) const
588 { return GetOutCode( pt ) == wxInside; }
589 inline bool Contains( const wxRect2DDouble &rect ) const
590 { return ( ( ( m_x <= rect.m_x ) && ( rect.m_x + rect.m_width <= m_x + m_width ) ) &&
591 ( ( m_y <= rect.m_y ) && ( rect.m_y + rect.m_height <= m_y + m_height ) ) ); }
592 inline bool IsEmpty() const
593 { return ( m_width <= 0 || m_height <= 0 ); }
594 inline bool HaveEqualSize( const wxRect2DDouble &rect ) const
595 { return ( rect.m_width == m_width && rect.m_height == m_height ); }
596
597 inline void Inset( wxDouble x , wxDouble y )
598 { m_x += x; m_y += y; m_width -= 2 * x; m_height -= 2 * y; }
599 inline void Inset( wxDouble left , wxDouble top ,wxDouble right , wxDouble bottom )
600 { m_x += left; m_y += top; m_width -= left + right; m_height -= top + bottom;}
601 inline void Offset( const wxPoint2DDouble &pt )
602 { m_x += pt.m_x; m_y += pt.m_y; }
603
604 void ConstrainTo( const wxRect2DDouble &rect );
605
606 inline wxPoint2DDouble Interpolate( wxInt32 widthfactor , wxInt32 heightfactor )
607 { return wxPoint2DDouble( m_x + m_width * widthfactor , m_y + m_height * heightfactor ); }
608
609 static void Intersect( const wxRect2DDouble &src1 , const wxRect2DDouble &src2 , wxRect2DDouble *dest );
610 inline void Intersect( const wxRect2DDouble &otherRect )
611 { Intersect( *this , otherRect , this ); }
612 inline wxRect2DDouble CreateIntersection( const wxRect2DDouble &otherRect ) const
613 { wxRect2DDouble result; Intersect( *this , otherRect , &result); return result; }
614 bool Intersects( const wxRect2DDouble &rect ) const;
615
616 static void Union( const wxRect2DDouble &src1 , const wxRect2DDouble &src2 , wxRect2DDouble *dest );
617 void Union( const wxRect2DDouble &otherRect )
618 { Union( *this , otherRect , this ); }
619 void Union( const wxPoint2DDouble &pt );
620 inline wxRect2DDouble CreateUnion( const wxRect2DDouble &otherRect ) const
621 { wxRect2DDouble result; Union( *this , otherRect , &result); return result; }
622
623 inline void Scale( wxDouble f )
624 { m_x *= f; m_y *= f; m_width *= f; m_height *= f;}
625 inline void Scale( wxInt32 num , wxInt32 denum )
626 { m_x *= ((wxDouble)num)/((wxDouble)denum); m_y *= ((wxDouble)num)/((wxDouble)denum);
627 m_width *= ((wxDouble)num)/((wxDouble)denum); m_height *= ((wxDouble)num)/((wxDouble)denum);}
628
629 wxRect2DDouble& operator = (const wxRect2DDouble& rect);
630 inline bool operator == (const wxRect2DDouble& rect) const
631 { return (m_x==rect.m_x && m_y==rect.m_y && m_width==rect.m_width && m_height==rect.m_height); }
632 inline bool operator != (const wxRect2DDouble& rect) const
633 { return !(*this == rect); }
634
635 wxDouble m_x;
636 wxDouble m_y;
637 wxDouble m_width;
638 wxDouble m_height;
639 };
640
641
642 // wxRect2Ds are a axis-aligned rectangles, each side of the rect is parallel to the x- or m_y- axis. The rectangle is either defined by the
643 // top left and bottom right corner, or by the top left corner and size. A point is contained within the rectangle if
644 // left <= x < right and top <= m_y < bottom , thus it is a half open interval.
645
646 class WXDLLEXPORT wxRect2DInt
647 {
648 public:
649 wxRect2DInt() { m_x = m_y = m_width = m_height = 0; }
650 wxRect2DInt( const wxRect& r ) { m_x = r.x ; m_y = r.y ; m_width = r.width ; m_height = r.height ; }
651 wxRect2DInt(wxInt32 x, wxInt32 y, wxInt32 w, wxInt32 h) { m_x = x; m_y = y; m_width = w; m_height = h; }
652 wxRect2DInt(const wxPoint2DInt& topLeft, const wxPoint2DInt& bottomRight);
653 inline wxRect2DInt(const wxPoint2DInt& pos, const wxSize& size);
654 inline wxRect2DInt(const wxRect2DInt& rect);
655
656 // single attribute accessors
657
658 inline wxPoint2DInt GetPosition() { return wxPoint2DInt(m_x, m_y); }
659 inline wxSize GetSize() { return wxSize(m_width, m_height); }
660
661 // for the edge and corner accessors there are two setters conterparts, the Set.. functions keep the other corners at their
662 // position whenever sensible, the Move.. functions keep the size of the rect and move the other corners apropriately
663
664 inline wxInt32 GetLeft() const { return m_x; }
665 inline void SetLeft( wxInt32 n ) { m_width += m_x - n; m_x = n; }
666 inline void MoveLeftTo( wxInt32 n ) { m_x = n; }
667 inline wxInt32 GetTop() const { return m_y; }
668 inline void SetTop( wxInt32 n ) { m_height += m_y - n; m_y = n; }
669 inline void MoveTopTo( wxInt32 n ) { m_y = n; }
670 inline wxInt32 GetBottom() const { return m_y + m_height; }
671 inline void SetBottom( wxInt32 n ) { m_height += n - (m_y+m_height);}
672 inline void MoveBottomTo( wxInt32 n ) { m_y = n - m_height; }
673 inline wxInt32 GetRight() const { return m_x + m_width; }
674 inline void SetRight( wxInt32 n ) { m_width += n - (m_x+m_width) ; }
675 inline void MoveRightTo( wxInt32 n ) { m_x = n - m_width; }
676
677 inline wxPoint2DInt GetLeftTop() const { return wxPoint2DInt( m_x , m_y ); }
678 inline void SetLeftTop( const wxPoint2DInt &pt ) { m_width += m_x - pt.m_x; m_height += m_y - pt.m_y; m_x = pt.m_x; m_y = pt.m_y; }
679 inline void MoveLeftTopTo( const wxPoint2DInt &pt ) { m_x = pt.m_x; m_y = pt.m_y; }
680 inline wxPoint2DInt GetLeftBottom() const { return wxPoint2DInt( m_x , m_y + m_height ); }
681 inline void SetLeftBottom( const wxPoint2DInt &pt ) { m_width += m_x - pt.m_x; m_height += pt.m_y - (m_y+m_height) ; m_x = pt.m_x; }
682 inline void MoveLeftBottomTo( const wxPoint2DInt &pt ) { m_x = pt.m_x; m_y = pt.m_y - m_height; }
683 inline wxPoint2DInt GetRightTop() const { return wxPoint2DInt( m_x+m_width , m_y ); }
684 inline void SetRightTop( const wxPoint2DInt &pt ) { m_width += pt.m_x - ( m_x + m_width ); m_height += m_y - pt.m_y; m_y = pt.m_y; }
685 inline void MoveRightTopTo( const wxPoint2DInt &pt ) { m_x = pt.m_x - m_width; m_y = pt.m_y; }
686 inline wxPoint2DInt GetRightBottom() const { return wxPoint2DInt( m_x+m_width , m_y + m_height ); }
687 inline void SetRightBottom( const wxPoint2DInt &pt ) { m_width += pt.m_x - ( m_x + m_width ); m_height += pt.m_y - (m_y+m_height);}
688 inline void MoveRightBottomTo( const wxPoint2DInt &pt ) { m_x = pt.m_x - m_width; m_y = pt.m_y - m_height; }
689 inline wxPoint2DInt GetCentre() const { return wxPoint2DInt( m_x+m_width/2 , m_y+m_height/2 ); }
690 inline void SetCentre( const wxPoint2DInt &pt ) { MoveCentreTo( pt ); } // since this is impossible without moving...
691 inline void MoveCentreTo( const wxPoint2DInt &pt ) { m_x += pt.m_x - (m_x+m_width/2) , m_y += pt.m_y -(m_y+m_height/2); }
692 inline wxOutCode GetOutCode( const wxPoint2DInt &pt ) const
693 { return (wxOutCode) (( ( pt.m_x < m_x ) ? wxOutLeft : 0 ) +
694 ( ( pt.m_x >= m_x + m_width ) ? wxOutRight : 0 ) +
695 ( ( pt.m_y < m_y ) ? wxOutTop : 0 ) +
696 ( ( pt.m_y >= m_y + m_height ) ? wxOutBottom : 0 )); }
697 inline wxOutCode GetOutcode( const wxPoint2DInt &pt ) const
698 { return GetOutCode( pt ) ; }
699 inline bool Contains( const wxPoint2DInt &pt ) const
700 { return GetOutCode( pt ) == wxInside; }
701 inline bool Contains( const wxRect2DInt &rect ) const
702 { return ( ( ( m_x <= rect.m_x ) && ( rect.m_x + rect.m_width <= m_x + m_width ) ) &&
703 ( ( m_y <= rect.m_y ) && ( rect.m_y + rect.m_height <= m_y + m_height ) ) ); }
704 inline bool IsEmpty() const
705 { return ( m_width <= 0 || m_height <= 0 ); }
706 inline bool HaveEqualSize( const wxRect2DInt &rect ) const
707 { return ( rect.m_width == m_width && rect.m_height == m_height ); }
708
709 inline void Inset( wxInt32 x , wxInt32 y ) { m_x += x; m_y += y; m_width -= 2 * x; m_height -= 2 * y; }
710 inline void Inset( wxInt32 left , wxInt32 top ,wxInt32 right , wxInt32 bottom )
711 { m_x += left; m_y += top; m_width -= left + right; m_height -= top + bottom;}
712 inline void Offset( const wxPoint2DInt &pt ) { m_x += pt.m_x; m_y += pt.m_y; }
713 void ConstrainTo( const wxRect2DInt &rect );
714 inline wxPoint2DInt Interpolate( wxInt32 widthfactor , wxInt32 heightfactor ) { return wxPoint2DInt( m_x + m_width * widthfactor , m_y + m_height * heightfactor ); }
715
716 static void Intersect( const wxRect2DInt &src1 , const wxRect2DInt &src2 , wxRect2DInt *dest );
717 inline void Intersect( const wxRect2DInt &otherRect ) { Intersect( *this , otherRect , this ); }
718 inline wxRect2DInt CreateIntersection( const wxRect2DInt &otherRect ) const { wxRect2DInt result; Intersect( *this , otherRect , &result); return result; }
719 bool Intersects( const wxRect2DInt &rect ) const;
720
721 static void Union( const wxRect2DInt &src1 , const wxRect2DInt &src2 , wxRect2DInt *dest );
722 void Union( const wxRect2DInt &otherRect ) { Union( *this , otherRect , this ); }
723 void Union( const wxPoint2DInt &pt );
724 inline wxRect2DInt CreateUnion( const wxRect2DInt &otherRect ) const { wxRect2DInt result; Union( *this , otherRect , &result); return result; }
725
726 inline void Scale( wxInt32 f ) { m_x *= f; m_y *= f; m_width *= f; m_height *= f;}
727 inline void Scale( wxInt32 num , wxInt32 denum )
728 { m_x *= ((wxInt32)num)/((wxInt32)denum); m_y *= ((wxInt32)num)/((wxInt32)denum);
729 m_width *= ((wxInt32)num)/((wxInt32)denum); m_height *= ((wxInt32)num)/((wxInt32)denum);}
730
731 wxRect2DInt& operator = (const wxRect2DInt& rect);
732 bool operator == (const wxRect2DInt& rect) const;
733 bool operator != (const wxRect2DInt& rect) const;
734
735 #if wxUSE_STREAMS
736 void WriteTo( wxDataOutputStream &stream ) const;
737 void ReadFrom( wxDataInputStream &stream );
738 #endif // wxUSE_STREAMS
739
740 wxInt32 m_x;
741 wxInt32 m_y;
742 wxInt32 m_width;
743 wxInt32 m_height;
744 };
745
746 inline wxRect2DInt::wxRect2DInt( const wxRect2DInt &r )
747 {
748 m_x = r.m_x;
749 m_y = r.m_y;
750 m_width = r.m_width;
751 m_height = r.m_height;
752 }
753
754 inline wxRect2DInt::wxRect2DInt( const wxPoint2DInt &a , const wxPoint2DInt &b)
755 {
756 m_x = wxMin( a.m_x , b.m_x );
757 m_y = wxMin( a.m_y , b.m_y );
758 m_width = abs( a.m_x - b.m_x );
759 m_height = abs( a.m_y - b.m_y );
760 }
761
762 inline wxRect2DInt::wxRect2DInt( const wxPoint2DInt& pos, const wxSize& size)
763 {
764 m_x = pos.m_x;
765 m_y = pos.m_y;
766 m_width = size.x;
767 m_height = size.y;
768 }
769
770 inline bool wxRect2DInt::operator == (const wxRect2DInt& rect) const
771 {
772 return (m_x==rect.m_x && m_y==rect.m_y &&
773 m_width==rect.m_width && m_height==rect.m_height);
774 }
775
776 inline bool wxRect2DInt::operator != (const wxRect2DInt& rect) const
777 {
778 return !(*this == rect);
779 }
780
781 class wxTransform2D
782 {
783 public :
784 virtual ~wxTransform2D() { }
785 virtual void Transform( wxPoint2DInt* pt )const = 0;
786 virtual void Transform( wxRect2DInt* r ) const;
787 virtual wxPoint2DInt Transform( const wxPoint2DInt &pt ) const;
788 virtual wxRect2DInt Transform( const wxRect2DInt &r ) const ;
789
790 virtual void InverseTransform( wxPoint2DInt* pt ) const = 0;
791 virtual void InverseTransform( wxRect2DInt* r ) const ;
792 virtual wxPoint2DInt InverseTransform( const wxPoint2DInt &pt ) const ;
793 virtual wxRect2DInt InverseTransform( const wxRect2DInt &r ) const ;
794 };
795
796 inline void wxTransform2D::Transform( wxRect2DInt* r ) const
797 { wxPoint2DInt a = r->GetLeftTop() , b = r->GetRightBottom(); Transform( &a ); Transform( &b ); *r = wxRect2DInt( a , b ); }
798
799 inline wxPoint2DInt wxTransform2D::Transform( const wxPoint2DInt &pt ) const
800 { wxPoint2DInt res = pt; Transform( &res ); return res; }
801
802 inline wxRect2DInt wxTransform2D::Transform( const wxRect2DInt &r ) const
803 { wxRect2DInt res = r; Transform( &res ); return res; }
804
805 inline void wxTransform2D::InverseTransform( wxRect2DInt* r ) const
806 { wxPoint2DInt a = r->GetLeftTop() , b = r->GetRightBottom(); InverseTransform( &a ); InverseTransform( &b ); *r = wxRect2DInt( a , b ); }
807
808 inline wxPoint2DInt wxTransform2D::InverseTransform( const wxPoint2DInt &pt ) const
809 { wxPoint2DInt res = pt; InverseTransform( &res ); return res; }
810
811 inline wxRect2DInt wxTransform2D::InverseTransform( const wxRect2DInt &r ) const
812 { wxRect2DInt res = r; InverseTransform( &res ); return res; }
813
814
815 #endif // wxUSE_GEOMETRY
816
817 #endif // _WX_GEOMETRY_H_