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[wxWidgets.git] / include / wx / geometry.h
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72e7876b
SC		 1/////////////////////////////////////////////////////////////////////////////
2// Name: 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)
c3a4297c 9// Licence: wxWindows licence
72e7876b
SC		 10/////////////////////////////////////////////////////////////////////////////
11
c3a4297c
VZ		 12#ifndef _WX_GEOMETRY_H_
13#define _WX_GEOMETRY_H_
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SC		 14
15#ifdef __GNUG__
6c7873e1 16 #pragma interface "geometry.cpp"
72e7876b
SC		 17#endif
18
510fc784 19#include "wx/defs.h"
c3a4297c 20
5b781a67
SC		 21#ifndef wxUSE_GEOMETRY
22 #define wxUSE_GEOMETRY 0
23#endif
24
c3a4297c
VZ		 25#if wxUSE_GEOMETRY
26
510fc784
RR		 27#include "wx/utils.h"
28#include "wx/gdicmn.h"
29#include <math.h>
30
72e7876b 31#ifdef __WXMSW__
c3a4297c 32 #define wxMulDivInt32( a , b , c ) ::MulDiv( a , b , c )
72e7876b 33#elif defined( __WXMAC__ )
03e11df5 34 #ifdef __WXMAC_X__
5fde6fcc 35 #include <CoreServices/CoreServices.h>
03e11df5 36 #else
c3a4297c 37 #include "Math64.h"
03e11df5 38 #endif
c3a4297c 39 #define wxMulDivInt32( a , b , c ) S32Set( S64Div( S64Multiply( S64Set(a) , S64Set(b) ) , S64Set(c) ) )
72e7876b 40#else
c3a4297c 41 #define wxMulDivInt32( a , b , c ) ((wxInt32)((a)*(((wxDouble)b)/((wxDouble)c))))
72e7876b
SC		 42#endif
43
44class wxDataInputStream ;
45class wxDataOutputStream ;
46
47// clipping from Cohen-Sutherland
48
49enum wxOutCode
50{
c3a4297c
VZ		 51 wxInside = 0x00 ,
52 wxOutLeft = 0x01 ,
53 wxOutRight = 0x02 ,
54 wxOutTop = 0x08 ,
55 wxOutBottom = 0x04
72e7876b
SC		 56} ;
57
58// wxPoint2Ds represent a point or a vector in a 2d coordinate system
59
60class WXDLLEXPORT wxPoint2DDouble
61{
62public :
c3a4297c
VZ		 63 wxPoint2DDouble();
64 wxPoint2DDouble( wxDouble x , wxDouble y ) ;
65 wxPoint2DDouble( const wxPoint2DDouble &pt ) ;
66
67 // two different conversions to integers, floor and rounding
68 void GetFloor( wxInt32 *x , wxInt32 *y ) ;
69 void GetRounded( wxInt32 *x , wxInt32 *y ) ;
70
71 wxDouble GetVectorLength() ;
72 wxDouble GetVectorAngle() ;
73 void SetVectorLength( wxDouble length ) ;
74 void SetVectorAngle( wxDouble degrees ) ;
75 void SetPolarCoordinates( wxDouble angle , wxDouble length ) ;
76 // set the vector length to 1.0, preserving the angle
77 void Normalize() ;
78
79 wxDouble GetDistance( const wxPoint2DDouble &pt ) ;
80 wxDouble GetDistanceSquare( const wxPoint2DDouble &pt ) ;
81 wxDouble GetDotProduct( const wxPoint2DDouble &vec ) ;
82 wxDouble GetCrossProduct( const wxPoint2DDouble &vec ) ;
83
84 // the reflection of this point
85 wxPoint2DDouble operator-() ;
86
87 wxPoint2DDouble& operator=(const wxPoint2DDouble& pt) ;
88 wxPoint2DDouble& operator+=(const wxPoint2DDouble& pt) ;
89 wxPoint2DDouble& operator-=(const wxPoint2DDouble& pt) ;
90 wxPoint2DDouble& operator*=(const wxPoint2DDouble& pt) ;
91 wxPoint2DDouble& operator*=(wxDouble n) ;
92 wxPoint2DDouble& operator*=(wxInt32 n) ;
93 wxPoint2DDouble& operator/=(const wxPoint2DDouble& pt) ;
94 wxPoint2DDouble& operator/=(wxDouble n) ;
95 wxPoint2DDouble& operator/=(wxInt32 n) ;
96
97 bool operator==(const wxPoint2DDouble& pt) const ;
98 bool operator!=(const wxPoint2DDouble& pt) const ;
99
100 wxDouble m_x ;
101 wxDouble m_y ;
72e7876b
SC		 102} ;
103
104wxPoint2DDouble operator+(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2) ;
105wxPoint2DDouble operator-(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2) ;
106wxPoint2DDouble operator*(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2) ;
107wxPoint2DDouble operator*(wxDouble n , const wxPoint2DDouble& pt) ;
108wxPoint2DDouble operator*(wxInt32 n , const wxPoint2DDouble& pt) ;
109wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxDouble n) ;
110wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxInt32 n) ;
111wxPoint2DDouble operator/(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2) ;
112wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxDouble n) ;
113wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxInt32 n) ;
114
115inline wxPoint2DDouble::wxPoint2DDouble()
116{
c3a4297c
VZ		 117 m_x = 0.0 ;
118 m_y = 0.0 ;
72e7876b
SC		 119}
120
121inline wxPoint2DDouble::wxPoint2DDouble( wxDouble x , wxDouble y )
122{
c3a4297c
VZ		 123 m_x = x ;
124 m_y = y ;
72e7876b
SC		 125}
126
127inline wxPoint2DDouble::wxPoint2DDouble( const wxPoint2DDouble &pt )
128{
c3a4297c
VZ		 129 m_x = pt.m_x ;
130 m_y = pt.m_y ;
72e7876b 131}
c3a4297c 132
72e7876b
SC		 133inline void wxPoint2DDouble::GetFloor( wxInt32 *x , wxInt32 *y )
134{
c3a4297c
VZ		 135 *x = (wxInt32) floor( m_x ) ;
136 *y = (wxInt32) floor( m_y ) ;
72e7876b
SC		 137}
138
139inline void wxPoint2DDouble::GetRounded( wxInt32 *x , wxInt32 *y )
140{
c3a4297c
VZ		 141 *x = (wxInt32) floor( m_x + 0.5 ) ;
142 *y = (wxInt32) floor( m_y + 0.5) ;
72e7876b
SC		 143}
144
72e7876b
SC		 145inline wxDouble wxPoint2DDouble::GetDistance( const wxPoint2DDouble &pt )
146{
c3a4297c 147 return sqrt( GetDistanceSquare( pt ) );
72e7876b
SC		 148}
149
150inline wxDouble wxPoint2DDouble::GetDistanceSquare( const wxPoint2DDouble &pt )
151{
c3a4297c 152 return ( (pt.m_x-m_x)*(pt.m_x-m_x) + (pt.m_y-m_y)*(pt.m_y-m_y) ) ;
72e7876b
SC		 153}
154
155inline wxDouble wxPoint2DDouble::GetDotProduct( const wxPoint2DDouble &vec )
156{
c3a4297c 157 return ( m_x * vec.m_x + m_y * vec.m_y ) ;
72e7876b
SC		 158}
159
160inline wxDouble wxPoint2DDouble::GetCrossProduct( const wxPoint2DDouble &vec )
161{
c3a4297c 162 return ( m_x * vec.m_y - vec.m_x * m_y ) ;
72e7876b
SC		 163}
164
165inline wxPoint2DDouble wxPoint2DDouble::operator-()
166{
c3a4297c 167 return wxPoint2DDouble( -m_x, -m_y);
72e7876b
SC		 168}
169
170inline wxPoint2DDouble& wxPoint2DDouble::operator=(const wxPoint2DDouble& pt)
171{
c3a4297c
VZ		 172 m_x = pt.m_x ;
173 m_y = pt.m_y;
174 return *this ;
72e7876b
SC		 175}
176
177inline wxPoint2DDouble& wxPoint2DDouble::operator+=(const wxPoint2DDouble& pt)
178{
c3a4297c
VZ		 179 m_x = m_x + pt.m_x ;
180 m_y = m_y + pt.m_y;
181 return *this ;
72e7876b
SC		 182}
183
184inline wxPoint2DDouble& wxPoint2DDouble::operator-=(const wxPoint2DDouble& pt)
185{
c3a4297c
VZ		 186 m_x = m_x - pt.m_x ;
187 m_y = m_y - pt.m_y;
188 return *this ;
72e7876b
SC		 189}
190
191inline wxPoint2DDouble& wxPoint2DDouble::operator*=(const wxPoint2DDouble& pt)
192{
da052901
RR		 193 m_x = m_x * pt.m_x ;
194 m_y = m_y * pt.m_y;
c3a4297c 195 return *this ;
72e7876b
SC		 196}
197
198inline wxPoint2DDouble& wxPoint2DDouble::operator/=(const wxPoint2DDouble& pt)
199{
da052901
RR		 200 m_x = m_x / pt.m_x ;
201 m_y = m_y / pt.m_y;
c3a4297c 202 return *this ;
72e7876b
SC		 203}
204
205inline bool wxPoint2DDouble::operator==(const wxPoint2DDouble& pt) const
206{
c3a4297c 207 return m_x == pt.m_x && m_y == pt.m_y;
72e7876b
SC		 208}
209
210inline bool wxPoint2DDouble::operator!=(const wxPoint2DDouble& pt) const
211{
c3a4297c 212 return m_x != pt.m_x || m_y != pt.m_y;
72e7876b
SC		 213}
214
215inline wxPoint2DDouble operator+(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2)
216{
c3a4297c 217 return wxPoint2DDouble( pt1.m_x + pt2.m_x , pt1.m_y + pt2.m_y ) ;
72e7876b
SC		 218}
219
220inline wxPoint2DDouble operator-(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2)
221{
c3a4297c 222 return wxPoint2DDouble( pt1.m_x - pt2.m_x , pt1.m_y - pt2.m_y ) ;
72e7876b
SC		 223}
224
225
226inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2)
227{
c3a4297c 228 return wxPoint2DDouble( pt1.m_x * pt2.m_x , pt1.m_y * pt2.m_y ) ;
72e7876b
SC		 229}
230
231inline wxPoint2DDouble operator*(wxDouble n , const wxPoint2DDouble& pt)
232{
c3a4297c 233 return wxPoint2DDouble( pt.m_x * n , pt.m_y * n ) ;
72e7876b
SC		 234}
235
236inline wxPoint2DDouble operator*(wxInt32 n , const wxPoint2DDouble& pt)
237{
c3a4297c 238 return wxPoint2DDouble( pt.m_x * n , pt.m_y * n ) ;
72e7876b
SC		 239}
240
241inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxDouble n)
242{
c3a4297c 243 return wxPoint2DDouble( pt.m_x * n , pt.m_y * n ) ;
72e7876b
SC		 244}
245
246inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxInt32 n)
247{
c3a4297c 248 return wxPoint2DDouble( pt.m_x * n , pt.m_y * n ) ;
72e7876b
SC		 249}
250
251inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2)
252{
c3a4297c 253 return wxPoint2DDouble( pt1.m_x / pt2.m_x , pt1.m_y / pt2.m_y ) ;
72e7876b
SC		 254}
255
256inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxDouble n)
257{
c3a4297c 258 return wxPoint2DDouble( pt.m_x / n , pt.m_y / n ) ;
72e7876b
SC		 259}
260
261inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxInt32 n)
262{
c3a4297c 263 return wxPoint2DDouble( pt.m_x / n , pt.m_y / n ) ;
72e7876b
SC		 264}
265
266// 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
267// top left and bottom right corner, or by the top left corner and size. A point is contained within the rectangle if
268// left <= x < right and top <= m_y < bottom , thus it is a half open interval.
269
270class WXDLLEXPORT wxRect2DDouble
271{
272public:
6c7873e1
RR		 273 wxRect2DDouble()
274 { m_x = m_y = m_width = m_height = 0 ; }
275 wxRect2DDouble(wxDouble x, wxDouble y, wxDouble w, wxDouble h)
276 { m_x = x ; m_y = y ; m_width = w ; m_height = h ; }
277/*
278 wxRect2DDouble(const wxPoint2DDouble& topLeft, const wxPoint2DDouble& bottomRight);
279 wxRect2DDouble(const wxPoint2DDouble& pos, const wxSize& size);
280 wxRect2DDouble(const wxRect2DDouble& rect);
281*/
c3a4297c
VZ		 282 // single attribute accessors
283
6c7873e1
RR		 284 inline wxPoint2DDouble GetPosition()
285 { return wxPoint2DDouble(m_x, m_y); }
286 inline wxSize GetSize()
7a5e6267 287 { return wxSize((int) m_width, (int) m_height); }
c3a4297c 288
6c7873e1 289 // for the edge and corner accessors there are two setters conterparts, the Set.. functions keep the other corners at their
c3a4297c
VZ		 290 // position whenever sensible, the Move.. functions keep the size of the rect and move the other corners apropriately
291
6c7873e1
RR		 292 inline wxDouble GetLeft() const { return m_x; }
293 inline void SetLeft( wxDouble n ) { m_width += m_x - n ; m_x = n ; }
294 inline void MoveLeftTo( wxDouble n ) { m_x = n ; }
295 inline wxDouble GetTop() const { return m_y; }
296 inline void SetTop( wxDouble n ) { m_height += m_y - n ; m_y = n ; }
297 inline void MoveTopTo( wxDouble n ) { m_y = n ; }
298 inline wxDouble GetBottom() const { return m_y + m_height; }
299 inline void SetBottom( wxDouble n ) { m_height += n - (m_y+m_height) ;}
300 inline void MoveBottomTo( wxDouble n ) { m_y = n - m_height ; }
301 inline wxDouble GetRight() const { return m_x + m_width; }
302 inline void SetRight( wxDouble n ) { m_width += n - (m_x+m_width) ; }
303 inline void MoveRightTo( wxDouble n ) { m_x = n - m_width ; }
304
305 inline wxPoint2DDouble GetLeftTop() const
306 { return wxPoint2DDouble( m_x , m_y ) ; }
307 inline void SetLeftTop( const wxPoint2DDouble &pt )
308 { m_width += m_x - pt.m_x ; m_height += m_y - pt.m_y ; m_x = pt.m_x ; m_y = pt.m_y ; }
309 inline void MoveLeftTopTo( const wxPoint2DDouble &pt )
310 { m_x = pt.m_x ; m_y = pt.m_y ; }
311 inline wxPoint2DDouble GetLeftBottom() const
312 { return wxPoint2DDouble( m_x , m_y + m_height ) ; }
313 inline void SetLeftBottom( const wxPoint2DDouble &pt )
314 { m_width += m_x - pt.m_x ; m_height += pt.m_y - (m_y+m_height) ; m_x = pt.m_x ; }
315 inline void MoveLeftBottomTo( const wxPoint2DDouble &pt )
316 { m_x = pt.m_x ; m_y = pt.m_y - m_height; }
317 inline wxPoint2DDouble GetRightTop() const
318 { return wxPoint2DDouble( m_x+m_width , m_y ) ; }
319 inline void SetRightTop( const wxPoint2DDouble &pt )
320 { m_width += pt.m_x - ( m_x + m_width ) ; m_height += m_y - pt.m_y ; m_y = pt.m_y ; }
321 inline void MoveRightTopTo( const wxPoint2DDouble &pt )
322 { m_x = pt.m_x - m_width ; m_y = pt.m_y ; }
323 inline wxPoint2DDouble GetRightBottom() const
324 { return wxPoint2DDouble( m_x+m_width , m_y + m_height ) ; }
325 inline void SetRightBottom( const wxPoint2DDouble &pt )
326 { m_width += pt.m_x - ( m_x + m_width ) ; m_height += pt.m_y - (m_y+m_height) ;}
327 inline void MoveRightBottomTo( const wxPoint2DDouble &pt )
328 { m_x = pt.m_x - m_width ; m_y = pt.m_y - m_height; }
329 inline wxPoint2DDouble GetCentre() const
330 { return wxPoint2DDouble( m_x+m_width/2 , m_y+m_height/2 ) ; }
331 inline void SetCentre( const wxPoint2DDouble &pt )
332 { MoveCentreTo( pt ) ; } // since this is impossible without moving...
333 inline void MoveCentreTo( const wxPoint2DDouble &pt )
334 { m_x += pt.m_x - (m_x+m_width/2) , m_y += pt.m_y -(m_y+m_height/2) ; }
335 inline wxOutCode GetOutcode( const wxPoint2DDouble &pt ) const
336 { return (wxOutCode) (( ( pt.m_x < m_x ) ? wxOutLeft : 0 ) +
c3a4297c
VZ		 337 ( ( pt.m_x >= m_x + m_width ) ? wxOutRight : 0 ) +
338 ( ( pt.m_y < m_y ) ? wxOutTop : 0 ) +
339 ( ( pt.m_y >= m_y + m_height ) ? wxOutBottom : 0 )) ; }
6c7873e1
RR		 340 inline bool Contains( const wxPoint2DDouble &pt ) const
341 { return GetOutcode( pt ) == wxInside ; }
342 inline bool Contains( const wxRect2DDouble &rect ) const
343 { return ( ( ( m_x <= rect.m_x ) && ( rect.m_x + rect.m_width <= m_x + m_width ) ) &&
c3a4297c 344 ( ( m_y <= rect.m_y ) && ( rect.m_y + rect.m_height <= m_y + m_height ) ) ) ; }
6c7873e1
RR		 345 inline bool IsEmpty() const
346 { return ( m_width <= 0 || m_height <= 0 ) ; }
347 inline bool HaveEqualSize( const wxRect2DDouble &rect ) const
348 { return ( rect.m_width == m_width && rect.m_height == m_height ) ; }
349
350 inline void Inset( wxDouble x , wxDouble y )
351 { m_x += x ; m_y += y ; m_width -= 2 * x ; m_height -= 2 * y ; }
352 inline void Inset( wxDouble left , wxDouble top ,wxDouble right , wxDouble bottom )
353 { m_x += left ; m_y += top ; m_width -= left + right ; m_height -= top + bottom ;}
354 inline void Offset( const wxPoint2DDouble &pt )
355 { m_x += pt.m_x ; m_y += pt.m_y ; }
c3a4297c 356
6c7873e1
RR		 357 void ConstrainTo( const wxRect2DDouble &rect );
358
359 inline wxPoint2DDouble Interpolate( wxInt32 widthfactor , wxInt32 heightfactor )
360 { return wxPoint2DDouble( m_x + m_width * widthfactor , m_y + m_height * heightfactor ) ; }
361
362 static void Intersect( const wxRect2DDouble &src1 , const wxRect2DDouble &src2 , wxRect2DDouble *dest ) ;
363 inline void Intersect( const wxRect2DDouble &otherRect )
364 { Intersect( *this , otherRect , this ) ; }
365 inline wxRect2DDouble CreateIntersection( const wxRect2DDouble &otherRect ) const
366 { wxRect2DDouble result ; Intersect( *this , otherRect , &result) ; return result ; }
367 bool Intersects( const wxRect2DDouble &rect ) const ;
368
369 static void Union( const wxRect2DDouble &src1 , const wxRect2DDouble &src2 , wxRect2DDouble *dest ) ;
370 void Union( const wxRect2DDouble &otherRect )
371 { Union( *this , otherRect , this ) ; }
372 void Union( const wxPoint2DDouble &pt ) ;
373 inline wxRect2DDouble CreateUnion( const wxRect2DDouble &otherRect ) const
374 { wxRect2DDouble result ; Union( *this , otherRect , &result) ; return result ; }
375
376 inline void Scale( wxDouble f )
377 { m_x *= f ; m_y *= f ; m_width *= f ; m_height *= f ;}
378 inline void Scale( wxInt32 num , wxInt32 denum )
379 { m_x *= ((wxDouble)num)/((wxDouble)denum) ; m_y *= ((wxDouble)num)/((wxDouble)denum) ;
c3a4297c
VZ		 380 m_width *= ((wxDouble)num)/((wxDouble)denum) ; m_height *= ((wxDouble)num)/((wxDouble)denum) ;}
381
6c7873e1
RR		 382/*
383 wxRect2DDouble& operator = (const wxRect2DDouble& rect);
384 bool operator == (const wxRect2DDouble& rect);
385 bool operator != (const wxRect2DDouble& rect);
386*/
c3a4297c 387
6c7873e1
RR		 388 wxDouble m_x;
389 wxDouble m_y ;
390 wxDouble m_width;
391 wxDouble m_height;
72e7876b
SC		 392};
393
394class WXDLLEXPORT wxPoint2DInt
395{
396public :
c3a4297c
VZ		 397 wxPoint2DInt();
398 wxPoint2DInt( wxInt32 x , wxInt32 y ) ;
399 wxPoint2DInt( const wxPoint2DInt &pt ) ;
400 wxPoint2DInt( const wxPoint &pt ) ;
401
402 // two different conversions to integers, floor and rounding
403 void GetFloor( wxInt32 *x , wxInt32 *y ) ;
404 void GetRounded( wxInt32 *x , wxInt32 *y ) ;
405
406 wxDouble GetVectorLength() ;
407 wxDouble GetVectorAngle() ;
408 void SetVectorLength( wxDouble length ) ;
409 void SetVectorAngle( wxDouble degrees ) ;
410 void SetPolarCoordinates( wxInt32 angle , wxInt32 length ) ;
411 // set the vector length to 1.0, preserving the angle
412 void Normalize() ;
413
414 wxDouble GetDistance( const wxPoint2DInt &pt ) const ;
415 wxDouble GetDistanceSquare( const wxPoint2DInt &pt ) const;
416 wxInt32 GetDotProduct( const wxPoint2DInt &vec ) const;
417 wxInt32 GetCrossProduct( const wxPoint2DInt &vec ) const;
418
419 // the reflection of this point
420 wxPoint2DInt operator-() ;
421
422 wxPoint2DInt& operator=(const wxPoint2DInt& pt) ;
423 wxPoint2DInt& operator+=(const wxPoint2DInt& pt) ;
424 wxPoint2DInt& operator-=(const wxPoint2DInt& pt) ;
425 wxPoint2DInt& operator*=(const wxPoint2DInt& pt) ;
426 wxPoint2DInt& operator*=(wxDouble n) ;
427 wxPoint2DInt& operator*=(wxInt32 n) ;
428 wxPoint2DInt& operator/=(const wxPoint2DInt& pt) ;
429 wxPoint2DInt& operator/=(wxDouble n) ;
430 wxPoint2DInt& operator/=(wxInt32 n) ;
431 operator wxPoint() const ;
432 bool operator==(const wxPoint2DInt& pt) const ;
433 bool operator!=(const wxPoint2DInt& pt) const ;
434
435 void WriteTo( wxDataOutputStream &stream ) const ;
436 void ReadFrom( wxDataInputStream &stream ) ;
437
438 wxInt32 m_x ;
439 wxInt32 m_y ;
72e7876b
SC		 440} ;
441
442wxPoint2DInt operator+(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2) ;
443wxPoint2DInt operator-(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2) ;
444wxPoint2DInt operator*(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2) ;
445wxPoint2DInt operator*(wxInt32 n , const wxPoint2DInt& pt) ;
446wxPoint2DInt operator*(wxInt32 n , const wxPoint2DInt& pt) ;
447wxPoint2DInt operator*(const wxPoint2DInt& pt , wxInt32 n) ;
448wxPoint2DInt operator*(const wxPoint2DInt& pt , wxInt32 n) ;
449wxPoint2DInt operator/(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2) ;
450wxPoint2DInt operator/(const wxPoint2DInt& pt , wxInt32 n) ;
451wxPoint2DInt operator/(const wxPoint2DInt& pt , wxInt32 n) ;
452
453inline wxPoint2DInt::wxPoint2DInt()
454{
c3a4297c
VZ		 455 m_x = 0 ;
456 m_y = 0 ;
72e7876b
SC		 457}
458
459inline wxPoint2DInt::wxPoint2DInt( wxInt32 x , wxInt32 y )
460{
c3a4297c
VZ		 461 m_x = x ;
462 m_y = y ;
72e7876b
SC		 463}
464
465inline wxPoint2DInt::wxPoint2DInt( const wxPoint2DInt &pt )
466{
c3a4297c
VZ		 467 m_x = pt.m_x ;
468 m_y = pt.m_y ;
72e7876b 469}
c3a4297c 470
72e7876b
SC		 471inline wxPoint2DInt::wxPoint2DInt( const wxPoint &pt )
472{
c3a4297c
VZ		 473 m_x = pt.x ;
474 m_y = pt.y ;
72e7876b 475}
c3a4297c 476
72e7876b
SC		 477inline void wxPoint2DInt::GetFloor( wxInt32 *x , wxInt32 *y )
478{
c3a4297c
VZ		 479 *x = (wxInt32) floor( m_x ) ;
480 *y = (wxInt32) floor( m_y ) ;
72e7876b
SC		 481}
482
483inline void wxPoint2DInt::GetRounded( wxInt32 *x , wxInt32 *y )
484{
c3a4297c
VZ		 485 *x = (wxInt32) floor( m_x + 0.5 ) ;
486 *y = (wxInt32) floor( m_y + 0.5) ;
72e7876b
SC		 487}
488
489inline wxDouble wxPoint2DInt::GetVectorLength()
490{
c3a4297c 491 return sqrt( (m_x)*(m_x) + (m_y)*(m_y) ) ;
72e7876b
SC		 492}
493
494inline void wxPoint2DInt::SetVectorLength( wxDouble length )
495{
c3a4297c
VZ		 496 wxDouble before = GetVectorLength() ;
497 m_x = (wxInt32)(m_x * length / before) ;
498 m_y = (wxInt32)(m_y * length / before) ;
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SC		 499}
500
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SC		 501inline void wxPoint2DInt::Normalize()
502{
c3a4297c 503 SetVectorLength( 1 ) ;
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SC		 504}
505
506inline wxDouble wxPoint2DInt::GetDistance( const wxPoint2DInt &pt ) const
507{
c3a4297c 508 return sqrt( GetDistanceSquare( pt ) );
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SC		 509}
510
511inline wxDouble wxPoint2DInt::GetDistanceSquare( const wxPoint2DInt &pt ) const
512{
c3a4297c 513 return ( (pt.m_x-m_x)*(pt.m_x-m_x) + (pt.m_y-m_y)*(pt.m_y-m_y) ) ;
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SC		 514}
515
516inline wxInt32 wxPoint2DInt::GetDotProduct( const wxPoint2DInt &vec ) const
517{
c3a4297c 518 return ( m_x * vec.m_x + m_y * vec.m_y ) ;
72e7876b
SC		 519}
520
521inline wxInt32 wxPoint2DInt::GetCrossProduct( const wxPoint2DInt &vec ) const
522{
c3a4297c 523 return ( m_x * vec.m_y - vec.m_x * m_y ) ;
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SC		 524}
525
526inline wxPoint2DInt::operator wxPoint() const
527{
c3a4297c 528 return wxPoint( m_x, m_y);
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SC		 529}
530
531inline wxPoint2DInt wxPoint2DInt::operator-()
532{
c3a4297c 533 return wxPoint2DInt( -m_x, -m_y);
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SC		 534}
535
536inline wxPoint2DInt& wxPoint2DInt::operator=(const wxPoint2DInt& pt)
537{
c3a4297c
VZ		 538 m_x = pt.m_x ;
539 m_y = pt.m_y;
540 return *this ;
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SC		 541}
542
543inline wxPoint2DInt& wxPoint2DInt::operator+=(const wxPoint2DInt& pt)
544{
c3a4297c
VZ		 545 m_x = m_x + pt.m_x ;
546 m_y = m_y + pt.m_y;
547 return *this ;
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SC		 548}
549
550inline wxPoint2DInt& wxPoint2DInt::operator-=(const wxPoint2DInt& pt)
551{
c3a4297c
VZ		 552 m_x = m_x - pt.m_x ;
553 m_y = m_y - pt.m_y;
554 return *this ;
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SC		 555}
556
557inline wxPoint2DInt& wxPoint2DInt::operator*=(const wxPoint2DInt& pt)
558{
c3a4297c
VZ		 559 m_x = m_x + pt.m_x ;
560 m_y = m_y + pt.m_y;
561 return *this ;
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SC		 562}
563
564inline wxPoint2DInt& wxPoint2DInt::operator/=(const wxPoint2DInt& pt)
565{
c3a4297c
VZ		 566 m_x = m_x - pt.m_x ;
567 m_y = m_y - pt.m_y;
568 return *this ;
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SC		 569}
570
571inline bool wxPoint2DInt::operator==(const wxPoint2DInt& pt) const
572{
c3a4297c 573 return m_x == pt.m_x && m_y == pt.m_y;
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SC		 574}
575
576inline bool wxPoint2DInt::operator!=(const wxPoint2DInt& pt) const
577{
c3a4297c 578 return m_x != pt.m_x || m_y != pt.m_y;
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SC		 579}
580
581inline wxPoint2DInt operator+(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2)
582{
c3a4297c 583 return wxPoint2DInt( pt1.m_x + pt2.m_x , pt1.m_y + pt2.m_y ) ;
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SC		 584}
585
586inline wxPoint2DInt operator-(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2)
587{
c3a4297c 588 return wxPoint2DInt( pt1.m_x - pt2.m_x , pt1.m_y - pt2.m_y ) ;
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SC		 589}
590
591
592inline wxPoint2DInt operator*(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2)
593{
c3a4297c 594 return wxPoint2DInt( pt1.m_x * pt2.m_x , pt1.m_y * pt2.m_y ) ;
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SC		 595}
596
597inline wxPoint2DInt operator*(wxInt32 n , const wxPoint2DInt& pt)
598{
c3a4297c 599 return wxPoint2DInt( pt.m_x * n , pt.m_y * n ) ;
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SC		 600}
601
602inline wxPoint2DInt operator*(wxDouble n , const wxPoint2DInt& pt)
603{
7a5e6267 604 return wxPoint2DInt( (int) (pt.m_x * n) , (int) (pt.m_y * n) ) ;
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SC		 605}
606
607inline wxPoint2DInt operator*(const wxPoint2DInt& pt , wxInt32 n)
608{
c3a4297c 609 return wxPoint2DInt( pt.m_x * n , pt.m_y * n ) ;
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SC		 610}
611
612inline wxPoint2DInt operator*(const wxPoint2DInt& pt , wxDouble n)
613{
7a5e6267 614 return wxPoint2DInt( (int) (pt.m_x * n) , (int) (pt.m_y * n) ) ;
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SC		 615}
616
617inline wxPoint2DInt operator/(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2)
618{
c3a4297c 619 return wxPoint2DInt( pt1.m_x / pt2.m_x , pt1.m_y / pt2.m_y ) ;
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SC		 620}
621
622inline wxPoint2DInt operator/(const wxPoint2DInt& pt , wxInt32 n)
623{
c3a4297c 624 return wxPoint2DInt( pt.m_x / n , pt.m_y / n ) ;
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SC		 625}
626
627inline wxPoint2DInt operator/(const wxPoint2DInt& pt , wxDouble n)
628{
7a5e6267 629 return wxPoint2DInt( (int) (pt.m_x / n) , (int) (pt.m_y / n) ) ;
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SC		 630}
631
632// 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
633// top left and bottom right corner, or by the top left corner and size. A point is contained within the rectangle if
634// left <= x < right and top <= m_y < bottom , thus it is a half open interval.
635
636class WXDLLEXPORT wxRect2DInt
637{
638public:
c3a4297c
VZ		 639 wxRect2DInt() { m_x = m_y = m_width = m_height = 0 ; }
640 wxRect2DInt(wxInt32 x, wxInt32 y, wxInt32 w, wxInt32 h) { m_x = x ; m_y = y ; m_width = w ; m_height = h ; }
641 wxRect2DInt(const wxPoint2DInt& topLeft, const wxPoint2DInt& bottomRight);
642 wxRect2DInt(const wxPoint2DInt& pos, const wxSize& size);
643 wxRect2DInt(const wxRect2DInt& rect);
644
645 // single attribute accessors
646
647 inline wxPoint2DInt GetPosition() { return wxPoint2DInt(m_x, m_y); }
648 inline wxSize GetSize() { return wxSize(m_width, m_height); }
649
650 // for the edge and corner accessors there are two setters conterparts, the Set.. functions keep the other corners at their
651 // position whenever sensible, the Move.. functions keep the size of the rect and move the other corners apropriately
652
653 inline wxInt32 GetLeft() const { return m_x; }
654 inline void SetLeft( wxInt32 n ) { m_width += m_x - n ; m_x = n ; }
655 inline void MoveLeftTo( wxInt32 n ) { m_x = n ; }
656 inline wxInt32 GetTop() const { return m_y; }
657 inline void SetTop( wxInt32 n ) { m_height += m_y - n ; m_y = n ; }
658 inline void MoveTopTo( wxInt32 n ) { m_y = n ; }
659 inline wxInt32 GetBottom() const { return m_y + m_height; }
660 inline void SetBottom( wxInt32 n ) { m_height += n - (m_y+m_height) ;}
661 inline void MoveBottomTo( wxInt32 n ) { m_y = n - m_height ; }
662 inline wxInt32 GetRight() const { return m_x + m_width; }
663 inline void SetRight( wxInt32 n ) { m_width += n - (m_x+m_width) ; }
664 inline void MoveRightTo( wxInt32 n ) { m_x = n - m_width ; }
665
666 inline wxPoint2DInt GetLeftTop() const { return wxPoint2DInt( m_x , m_y ) ; }
667 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 ; }
668 inline void MoveLeftTopTo( const wxPoint2DInt &pt ) { m_x = pt.m_x ; m_y = pt.m_y ; }
669 inline wxPoint2DInt GetLeftBottom() const { return wxPoint2DInt( m_x , m_y + m_height ) ; }
670 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 ; }
671 inline void MoveLeftBottomTo( const wxPoint2DInt &pt ) { m_x = pt.m_x ; m_y = pt.m_y - m_height; }
672 inline wxPoint2DInt GetRightTop() const { return wxPoint2DInt( m_x+m_width , m_y ) ; }
673 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 ; }
674 inline void MoveRightTopTo( const wxPoint2DInt &pt ) { m_x = pt.m_x - m_width ; m_y = pt.m_y ; }
675 inline wxPoint2DInt GetRightBottom() const { return wxPoint2DInt( m_x+m_width , m_y + m_height ) ; }
676 inline void SetRightBottom( const wxPoint2DInt &pt ) { m_width += pt.m_x - ( m_x + m_width ) ; m_height += pt.m_y - (m_y+m_height) ;}
677 inline void MoveRightBottomTo( const wxPoint2DInt &pt ) { m_x = pt.m_x - m_width ; m_y = pt.m_y - m_height; }
678 inline wxPoint2DInt GetCentre() const { return wxPoint2DInt( m_x+m_width/2 , m_y+m_height/2 ) ; }
679 inline void SetCentre( const wxPoint2DInt &pt ) { MoveCentreTo( pt ) ; } // since this is impossible without moving...
680 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) ; }
681 inline wxOutCode GetOutcode( const wxPoint2DInt &pt ) const
682 { return (wxOutCode) (( ( pt.m_x < m_x ) ? wxOutLeft : 0 ) +
683 ( ( pt.m_x >= m_x + m_width ) ? wxOutRight : 0 ) +
684 ( ( pt.m_y < m_y ) ? wxOutTop : 0 ) +
685 ( ( pt.m_y >= m_y + m_height ) ? wxOutBottom : 0 )) ; }
686 inline bool Contains( const wxPoint2DInt &pt ) const
687 { return GetOutcode( pt ) == wxInside ; }
688 inline bool Contains( const wxRect2DInt &rect ) const
689 { return ( ( ( m_x <= rect.m_x ) && ( rect.m_x + rect.m_width <= m_x + m_width ) ) &&
690 ( ( m_y <= rect.m_y ) && ( rect.m_y + rect.m_height <= m_y + m_height ) ) ) ; }
691 inline bool IsEmpty() const
692 { return ( m_width <= 0 || m_height <= 0 ) ; }
693 inline bool HaveEqualSize( const wxRect2DInt &rect ) const
694 { return ( rect.m_width == m_width && rect.m_height == m_height ) ; }
695
696 inline void Inset( wxInt32 x , wxInt32 y ) { m_x += x ; m_y += y ; m_width -= 2 * x ; m_height -= 2 * y ; }
697 inline void Inset( wxInt32 left , wxInt32 top ,wxInt32 right , wxInt32 bottom )
698 { m_x += left ; m_y += top ; m_width -= left + right ; m_height -= top + bottom ;}
699 inline void Offset( const wxPoint2DInt &pt ) { m_x += pt.m_x ; m_y += pt.m_y ; }
700 void ConstrainTo( const wxRect2DInt &rect ) ;
701 inline wxPoint2DInt Interpolate( wxInt32 widthfactor , wxInt32 heightfactor ) { return wxPoint2DInt( m_x + m_width * widthfactor , m_y + m_height * heightfactor ) ; }
702
703 static void Intersect( const wxRect2DInt &src1 , const wxRect2DInt &src2 , wxRect2DInt *dest ) ;
704 inline void Intersect( const wxRect2DInt &otherRect ) { Intersect( *this , otherRect , this ) ; }
705 inline wxRect2DInt CreateIntersection( const wxRect2DInt &otherRect ) const { wxRect2DInt result ; Intersect( *this , otherRect , &result) ; return result ; }
706 bool Intersects( const wxRect2DInt &rect ) const ;
707
708 static void Union( const wxRect2DInt &src1 , const wxRect2DInt &src2 , wxRect2DInt *dest ) ;
709 void Union( const wxRect2DInt &otherRect ) { Union( *this , otherRect , this ) ; }
710 void Union( const wxPoint2DInt &pt ) ;
711 inline wxRect2DInt CreateUnion( const wxRect2DInt &otherRect ) const { wxRect2DInt result ; Union( *this , otherRect , &result) ; return result ; }
712
713 inline void Scale( wxInt32 f ) { m_x *= f ; m_y *= f ; m_width *= f ; m_height *= f ;}
714 inline void Scale( wxInt32 num , wxInt32 denum )
715 { m_x *= ((wxInt32)num)/((wxInt32)denum) ; m_y *= ((wxInt32)num)/((wxInt32)denum) ;
716 m_width *= ((wxInt32)num)/((wxInt32)denum) ; m_height *= ((wxInt32)num)/((wxInt32)denum) ;}
717
718 wxRect2DInt& operator = (const wxRect2DInt& rect);
719 bool operator == (const wxRect2DInt& rect);
720 bool operator != (const wxRect2DInt& rect);
721
722 void WriteTo( wxDataOutputStream &stream ) const ;
723 void ReadFrom( wxDataInputStream &stream ) ;
724
725 wxInt32 m_x ;
726 wxInt32 m_y ;
727 wxInt32 m_width;
728 wxInt32 m_height;
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SC		 729};
730
731inline wxRect2DInt::wxRect2DInt( const wxRect2DInt &r )
732{
c3a4297c
VZ		 733 m_x = r.m_x ;
734 m_y = r.m_y ;
735 m_width = r.m_width ;
736 m_height = r.m_height ;
72e7876b 737}
c3a4297c 738
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SC		 739inline wxRect2DInt::wxRect2DInt( const wxPoint2DInt &a , const wxPoint2DInt &b)
740{
c3a4297c
VZ		 741 m_x = wxMin( a.m_x , b.m_x ) ;
742 m_y = wxMin( a.m_y , b.m_y ) ;
743 m_width = abs( a.m_x - b.m_x ) ;
744 m_height = abs( a.m_y - b.m_y ) ;
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SC		 745}
746
747class wxTransform2D
748{
749public :
c3a4297c
VZ		 750 virtual void Transform( wxPoint2DInt* pt )const = 0 ;
751 virtual void Transform( wxRect2DInt* r ) const ;
752 virtual wxPoint2DInt Transform( const wxPoint2DInt &pt ) const ;
753 virtual wxRect2DInt Transform( const wxRect2DInt &r ) const ;
754
755 virtual void InverseTransform( wxPoint2DInt* pt ) const = 0;
756 virtual void InverseTransform( wxRect2DInt* r ) const ;
757 virtual wxPoint2DInt InverseTransform( const wxPoint2DInt &pt ) const ;
758 virtual wxRect2DInt InverseTransform( const wxRect2DInt &r ) const ;
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SC		 759} ;
760
c3a4297c 761inline void wxTransform2D::Transform( wxRect2DInt* r ) const
72e7876b
SC		 762{ wxPoint2DInt a = r->GetLeftTop() , b = r->GetRightBottom() ; Transform( &a ) ; Transform( &b ) ; *r = wxRect2DInt( a , b ) ; }
763
c3a4297c 764inline wxPoint2DInt wxTransform2D::Transform( const wxPoint2DInt &pt ) const
72e7876b
SC		 765{ wxPoint2DInt res = pt ; Transform( &res ) ; return res ; }
766
c3a4297c 767inline wxRect2DInt wxTransform2D::Transform( const wxRect2DInt &r ) const
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SC		 768{ wxRect2DInt res = r ; Transform( &res ) ; return res ; }
769
c3a4297c 770inline void wxTransform2D::InverseTransform( wxRect2DInt* r ) const
72e7876b
SC		 771{ wxPoint2DInt a = r->GetLeftTop() , b = r->GetRightBottom() ; InverseTransform( &a ) ; InverseTransform( &b ) ; *r = wxRect2DInt( a , b ) ; }
772
c3a4297c 773inline wxPoint2DInt wxTransform2D::InverseTransform( const wxPoint2DInt &pt ) const
72e7876b
SC		 774{ wxPoint2DInt res = pt ; InverseTransform( &res ) ; return res ; }
775
c3a4297c 776inline wxRect2DInt wxTransform2D::InverseTransform( const wxRect2DInt &r ) const
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SC		 777{ wxRect2DInt res = r ; InverseTransform( &res ) ; return res ; }
778
c3a4297c
VZ		 779
780#endif // wxUSE_GEOMETRY
781
782#endif // _WX_GEOMETRY_H_
wxWidgets (Impactor)