forward port from 2.8

[wxWidgets.git] / include / wx / geometry.h

diff --git a/include/wx/geometry.h b/include/wx/geometry.h
index fdec84935256d8b1e375c1a6933335059e3937fe..237f84dca5a198e1f6ab39aafa50787b20862b5c 100644 (file)
--- a/include/wx/geometry.h
+++ b/include/wx/geometry.h
@@ -4,40 +4,24 @@
 // Author:      Stefan Csomor
 // Modified by:
 // Created:     08/05/99
-// RCS-ID:
+// RCS-ID:      $Id$
 // Copyright:   (c) 1999 Stefan Csomor
-// Licence:     wxWidgets licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_GEOMETRY_H_
 #define _WX_GEOMETRY_H_
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma interface "geometry.cpp"
-#endif
-
 #include "wx/defs.h"
 
-#ifndef wxUSE_GEOMETRY
-    #define wxUSE_GEOMETRY 0
-#endif
-
 #if wxUSE_GEOMETRY
 
 #include "wx/utils.h"
 #include "wx/gdicmn.h"
-#include <math.h>
-
-#ifdef __WXMSW__
-    #define wxMulDivInt32( a , b , c ) ::MulDiv( a , b , c )
-#elif defined( __WXMAC__ )
-    #define wxMulDivInt32( a , b , c ) ( (wxInt32) ( ( (wxInt64)(a) * (wxInt64)(b) ) / (wxInt64)(c) ) )
-#else
-    #define wxMulDivInt32( a , b , c ) ((wxInt32)((a)*(((wxDouble)b)/((wxDouble)c))))
-#endif
+#include "wx/math.h"
 
-class wxDataInputStream;
-class wxDataOutputStream;
+class WXDLLIMPEXP_FWD_BASE wxDataInputStream;
+class WXDLLIMPEXP_FWD_BASE wxDataOutputStream;
 
 // clipping from Cohen-Sutherland
 
@@ -300,10 +284,10 @@ public :
     inline wxPoint2DDouble();
     inline wxPoint2DDouble( wxDouble x , wxDouble y );
     inline wxPoint2DDouble( const wxPoint2DDouble &pt );
-    wxPoint2DDouble( const wxPoint2DInt &pt ) 
-               {       m_x = (wxDouble) pt.m_x ; m_y = (wxDouble) pt.m_y ; }
-       wxPoint2DDouble( const wxPoint &pt ) 
-               {       m_x = (wxDouble) pt.x ; m_y = (wxDouble) pt.y ; }
+    wxPoint2DDouble( const wxPoint2DInt &pt )
+        { m_x = (wxDouble) pt.m_x ; m_y = (wxDouble) pt.m_y ; }
+    wxPoint2DDouble( const wxPoint &pt )
+        { m_x = (wxDouble) pt.x ; m_y = (wxDouble) pt.y ; }
 
     // two different conversions to integers, floor and rounding
     inline void GetFloor( wxInt32 *x , wxInt32 *y ) const;
@@ -388,13 +372,18 @@ inline wxDouble wxPoint2DDouble::GetVectorLength() const
     return sqrt( (m_x)*(m_x) + (m_y)*(m_y) ) ;
 }
 
-inline void wxPoint2DDouble::SetVectorLength( wxDouble length ) 
+inline void wxPoint2DDouble::SetVectorLength( wxDouble length )
 {
     wxDouble before = GetVectorLength() ;
     m_x = (m_x * length / before) ;
     m_y = (m_y * length / before) ;
 }
 
+inline void wxPoint2DDouble::Normalize()
+{
+    SetVectorLength( 1 );
+}
+
 inline wxDouble wxPoint2DDouble::GetDistance( const wxPoint2DDouble &pt ) const
 {
     return sqrt( GetDistanceSquare( pt ) );
@@ -457,12 +446,12 @@ inline wxPoint2DDouble& wxPoint2DDouble::operator/=(const wxPoint2DDouble& pt)
 
 inline bool wxPoint2DDouble::operator==(const wxPoint2DDouble& pt) const
 {
-    return m_x == pt.m_x && m_y == pt.m_y;
+    return wxIsSameDouble(m_x, pt.m_x) && wxIsSameDouble(m_y, pt.m_y);
 }
 
 inline bool wxPoint2DDouble::operator!=(const wxPoint2DDouble& pt) const
 {
-    return m_x != pt.m_x || m_y != pt.m_y;
+    return !(*this == pt);
 }
 
 inline wxPoint2DDouble operator+(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2)
@@ -590,17 +579,17 @@ public:
                      ( ( pt.m_x > m_x + m_width ) ? wxOutRight : 0 ) +
                      ( ( pt.m_y < m_y ) ? wxOutTop : 0 )  +
                      ( ( pt.m_y > m_y + m_height ) ? wxOutBottom : 0 )); }
-       inline wxOutCode GetOutcode(const wxPoint2DDouble &pt) const
-               { return GetOutCode(pt) ; }
+    inline wxOutCode GetOutcode(const wxPoint2DDouble &pt) const
+        { return GetOutCode(pt) ; }
     inline bool Contains( const wxPoint2DDouble &pt ) const
         { return  GetOutCode( pt ) == wxInside; }
     inline bool Contains( const wxRect2DDouble &rect ) const
         { return ( ( ( m_x <= rect.m_x ) && ( rect.m_x + rect.m_width <= m_x + m_width ) ) &&
                 ( ( m_y <= rect.m_y ) && ( rect.m_y + rect.m_height <= m_y + m_height ) ) ); }
     inline bool IsEmpty() const
-        { return ( m_width <= 0 || m_height <= 0 ); }
+        { return m_width <= 0 || m_height <= 0; }
     inline bool HaveEqualSize( const wxRect2DDouble &rect ) const
-        { return ( rect.m_width == m_width && rect.m_height == m_height ); }
+        { return wxIsSameDouble(rect.m_width, m_width) && wxIsSameDouble(rect.m_height, m_height); }
 
     inline void Inset( wxDouble x , wxDouble y )
         { m_x += x; m_y += y; m_width -= 2 * x; m_height -= 2 * y; }
@@ -635,9 +624,9 @@ public:
                 m_width *= ((wxDouble)num)/((wxDouble)denum); m_height *= ((wxDouble)num)/((wxDouble)denum);}
 
     wxRect2DDouble& operator = (const wxRect2DDouble& rect);
-    inline bool operator == (const wxRect2DDouble& rect)
-        { return (m_x==rect.m_x && m_y==rect.m_y && m_width==rect.m_width && m_height==rect.m_height); }
-    inline bool operator != (const wxRect2DDouble& rect)
+    inline bool operator == (const wxRect2DDouble& rect) const
+        { return wxIsSameDouble(m_x, rect.m_x) && wxIsSameDouble(m_y, rect.m_y) && HaveEqualSize(rect); }
+    inline bool operator != (const wxRect2DDouble& rect) const
         { return !(*this == rect); }
 
     wxDouble  m_x;
@@ -702,8 +691,8 @@ public:
                      ( ( pt.m_x >= m_x + m_width ) ? wxOutRight : 0 ) +
                      ( ( pt.m_y < m_y ) ? wxOutTop : 0 )  +
                      ( ( pt.m_y >= m_y + m_height ) ? wxOutBottom : 0 )); }
-               inline wxOutCode GetOutcode( const wxPoint2DInt &pt ) const
-                       { return GetOutCode( pt ) ; }
+        inline wxOutCode GetOutcode( const wxPoint2DInt &pt ) const
+            { return GetOutCode( pt ) ; }
         inline bool Contains( const wxPoint2DInt &pt ) const
             { return  GetOutCode( pt ) == wxInside; }
         inline bool Contains( const wxRect2DInt &rect ) const
@@ -776,8 +765,8 @@ inline wxRect2DInt::wxRect2DInt( const wxPoint2DInt& pos, const wxSize& size)
 }
 
 inline bool wxRect2DInt::operator == (const wxRect2DInt& rect) const
-{ 
-    return (m_x==rect.m_x && m_y==rect.m_y && 
+{
+    return (m_x==rect.m_x && m_y==rect.m_y &&
             m_width==rect.m_width && m_height==rect.m_height);
 }
 
@@ -789,6 +778,7 @@ inline bool wxRect2DInt::operator != (const wxRect2DInt& rect) const
 class wxTransform2D
 {
 public :
+    virtual ~wxTransform2D() { }
     virtual void                    Transform( wxPoint2DInt* pt )const  = 0;
     virtual void                    Transform( wxRect2DInt* r ) const;
     virtual wxPoint2DInt    Transform( const wxPoint2DInt &pt ) const;