1 /////////////////////////////////////////////////////////////////////////////
3 // Purpose: Common Geometry Classes
4 // Author: Stefan Csomor
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
13 #pragma implementation "geometry.cpp"
16 // For compilers that support precompilation, includes "wx.h".
17 #include "wx/wxprec.h"
30 #include "wx/geometry.h"
31 #include "wx/datstrm.h"
43 // for the following calculations always remember
44 // that the right and bottom edges are not part of a rect
46 bool wxRect2DDouble::Intersects( const wxRect2DDouble
&rect
) const
48 wxDouble left
,right
,bottom
,top
;
49 left
= wxMax ( m_x
, rect
.m_x
) ;
50 right
= wxMin ( m_x
+m_width
, rect
.m_x
+ rect
.m_width
) ;
51 top
= wxMax ( m_y
, rect
.m_y
) ;
52 bottom
= wxMin ( m_y
+m_height
, rect
.m_y
+ rect
.m_height
) ;
54 if ( left
< right
&& top
< bottom
)
61 void wxRect2DDouble::Intersect( const wxRect2DDouble
&src1
, const wxRect2DDouble
&src2
, wxRect2DDouble
*dest
)
63 wxDouble left
,right
,bottom
,top
;
64 left
= wxMax ( src1
.m_x
, src2
.m_x
) ;
65 right
= wxMin ( src1
.m_x
+src1
.m_width
, src2
.m_x
+ src2
.m_width
) ;
66 top
= wxMax ( src1
.m_y
, src2
.m_y
) ;
67 bottom
= wxMin ( src1
.m_y
+src1
.m_height
, src2
.m_y
+ src2
.m_height
) ;
69 if ( left
< right
&& top
< bottom
)
73 dest
->m_width
= right
- left
;
74 dest
->m_height
= bottom
- top
;
78 dest
->m_width
= dest
->m_height
= 0 ;
82 void wxRect2DDouble::Union( const wxRect2DDouble
&src1
, const wxRect2DDouble
&src2
, wxRect2DDouble
*dest
)
84 wxDouble left
,right
,bottom
,top
;
86 left
= wxMin ( src1
.m_x
, src2
.m_x
) ;
87 right
= wxMax ( src1
.m_x
+src1
.m_width
, src2
.m_x
+ src2
.m_width
) ;
88 top
= wxMin ( src1
.m_y
, src2
.m_y
) ;
89 bottom
= wxMax ( src1
.m_y
+src1
.m_height
, src2
.m_y
+ src2
.m_height
) ;
93 dest
->m_width
= right
- left
;
94 dest
->m_height
= bottom
- top
;
97 void wxRect2DDouble::Union( const wxPoint2DDouble
&pt
)
100 wxDouble y
= pt
.m_y
;
106 else if ( x
< m_x
+ m_width
)
119 else if ( y
< m_y
+ m_height
)
129 void wxRect2DDouble::ConstrainTo( const wxRect2DDouble
&rect
)
131 if ( GetLeft() < rect
.GetLeft() )
132 SetLeft( rect
.GetLeft() ) ;
134 if ( GetRight() > rect
.GetRight() )
135 SetRight( rect
.GetRight() ) ;
137 if ( GetBottom() > rect
.GetBottom() )
138 SetBottom( rect
.GetBottom() ) ;
140 if ( GetTop() < rect
.GetTop() )
141 SetTop( rect
.GetTop() ) ;
146 // for the following calculations always remember
147 // that the right and bottom edges are not part of a rect
151 void wxPoint2DInt::WriteTo( wxDataOutputStream
&stream
) const
153 stream
.Write32( m_x
) ;
154 stream
.Write32( m_y
) ;
157 void wxPoint2DInt::ReadFrom( wxDataInputStream
&stream
)
159 m_x
= stream
.Read32() ;
160 m_y
= stream
.Read32() ;
163 wxDouble
wxPoint2DInt::GetVectorAngle()
179 wxDouble deg
= atan2( m_y
, m_x
) * 180 / 3.14159265359 ;
190 bool wxRect2DInt::Intersects( const wxRect2DInt
&rect
) const
192 wxInt32 left
,right
,bottom
,top
;
193 left
= wxMax ( m_x
, rect
.m_x
) ;
194 right
= wxMin ( m_x
+m_width
, rect
.m_x
+ rect
.m_width
) ;
195 top
= wxMax ( m_y
, rect
.m_y
) ;
196 bottom
= wxMin ( m_y
+m_height
, rect
.m_y
+ rect
.m_height
) ;
198 if ( left
< right
&& top
< bottom
)
205 void wxRect2DInt::Intersect( const wxRect2DInt
&src1
, const wxRect2DInt
&src2
, wxRect2DInt
*dest
)
207 wxInt32 left
,right
,bottom
,top
;
208 left
= wxMax ( src1
.m_x
, src2
.m_x
) ;
209 right
= wxMin ( src1
.m_x
+src1
.m_width
, src2
.m_x
+ src2
.m_width
) ;
210 top
= wxMax ( src1
.m_y
, src2
.m_y
) ;
211 bottom
= wxMin ( src1
.m_y
+src1
.m_height
, src2
.m_y
+ src2
.m_height
) ;
213 if ( left
< right
&& top
< bottom
)
217 dest
->m_width
= right
- left
;
218 dest
->m_height
= bottom
- top
;
222 dest
->m_width
= dest
->m_height
= 0 ;
226 void wxRect2DInt::Union( const wxRect2DInt
&src1
, const wxRect2DInt
&src2
, wxRect2DInt
*dest
)
228 wxInt32 left
,right
,bottom
,top
;
230 left
= wxMin ( src1
.m_x
, src2
.m_x
) ;
231 right
= wxMax ( src1
.m_x
+src1
.m_width
, src2
.m_x
+ src2
.m_width
) ;
232 top
= wxMin ( src1
.m_y
, src2
.m_y
) ;
233 bottom
= wxMax ( src1
.m_y
+src1
.m_height
, src2
.m_y
+ src2
.m_height
) ;
237 dest
->m_width
= right
- left
;
238 dest
->m_height
= bottom
- top
;
241 void wxRect2DInt::Union( const wxPoint2DInt
&pt
)
250 else if ( x
< m_x
+ m_width
)
263 else if ( y
< m_y
+ m_height
)
273 void wxRect2DInt::ConstrainTo( const wxRect2DInt
&rect
)
275 if ( GetLeft() < rect
.GetLeft() )
276 SetLeft( rect
.GetLeft() ) ;
278 if ( GetRight() > rect
.GetRight() )
279 SetRight( rect
.GetRight() ) ;
281 if ( GetBottom() > rect
.GetBottom() )
282 SetBottom( rect
.GetBottom() ) ;
284 if ( GetTop() < rect
.GetTop() )
285 SetTop( rect
.GetTop() ) ;
288 wxRect2DInt
& wxRect2DInt::operator=( const wxRect2DInt
&r
)
292 m_width
= r
.m_width
;
293 m_height
= r
.m_height
;
297 void wxRect2DInt::WriteTo( wxDataOutputStream
&stream
) const
299 stream
.Write32( m_x
) ;
300 stream
.Write32( m_y
) ;
301 stream
.Write32( m_width
) ;
302 stream
.Write32( m_height
) ;
305 void wxRect2DInt::ReadFrom( wxDataInputStream
&stream
)
307 m_x
= stream
.Read32() ;
308 m_y
= stream
.Read32() ;
309 m_width
= stream
.Read32() ;
310 m_height
= stream
.Read32() ;
313 #endif // wxUSE_GEOMETRY