adding comment

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

diff --git a/include/wx/geometry.h b/include/wx/geometry.h
index 4c1e5ad871c70a879c7292e3de9485c47a33f97b..aab6ad816680865edac95469d9deab8c68cf4b8a 100644 (file)
--- a/include/wx/geometry.h
+++ b/include/wx/geometry.h
@@ -20,16 +20,8 @@
 #include "wx/gdicmn.h"
 #include "wx/math.h"
 
-#if defined(__WXMSW__) && !defined(__WXWINCE__)
-    #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
-
-class WXDLLIMPEXP_BASE wxDataInputStream;
-class WXDLLIMPEXP_BASE wxDataOutputStream;
+class WXDLLIMPEXP_FWD_BASE wxDataInputStream;
+class WXDLLIMPEXP_FWD_BASE wxDataOutputStream;
 
 // clipping from Cohen-Sutherland
 
@@ -42,7 +34,7 @@ enum wxOutCode
     wxOutBottom = 0x04
 };
 
-class WXDLLEXPORT wxPoint2DInt
+class WXDLLIMPEXP_CORE wxPoint2DInt
 {
 public :
     inline wxPoint2DInt();
@@ -96,12 +88,9 @@ inline wxPoint2DInt operator+(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2)
 inline wxPoint2DInt operator-(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2);
 inline wxPoint2DInt operator*(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2);
 inline wxPoint2DInt operator*(wxInt32 n , const wxPoint2DInt& pt);
-inline wxPoint2DInt operator*(wxInt32 n , const wxPoint2DInt& pt);
-inline wxPoint2DInt operator*(const wxPoint2DInt& pt , wxInt32 n);
 inline wxPoint2DInt operator*(const wxPoint2DInt& pt , wxInt32 n);
 inline wxPoint2DInt operator/(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2);
 inline wxPoint2DInt operator/(const wxPoint2DInt& pt , wxInt32 n);
-inline wxPoint2DInt operator/(const wxPoint2DInt& pt , wxInt32 n);
 
 inline wxPoint2DInt::wxPoint2DInt()
 {
@@ -190,8 +179,11 @@ inline wxPoint2DInt wxPoint2DInt::operator-()
 
 inline wxPoint2DInt& wxPoint2DInt::operator=(const wxPoint2DInt& pt)
 {
-    m_x = pt.m_x;
-    m_y = pt.m_y;
+    if (this != &pt)
+    {
+        m_x = pt.m_x;
+        m_y = pt.m_y;
+    }
     return *this;
 }
 
@@ -286,7 +278,7 @@ inline wxPoint2DInt operator/(const wxPoint2DInt& pt , wxDouble n)
 
 // wxPoint2Ds represent a point or a vector in a 2d coordinate system
 
-class WXDLLEXPORT wxPoint2DDouble
+class WXDLLIMPEXP_CORE wxPoint2DDouble
 {
 public :
     inline wxPoint2DDouble();
@@ -387,6 +379,11 @@ inline void wxPoint2DDouble::SetVectorLength( wxDouble length )
     m_y = (m_y * length / before) ;
 }
 
+inline void wxPoint2DDouble::Normalize()
+{
+    SetVectorLength( 1 );
+}
+
 inline wxDouble wxPoint2DDouble::GetDistance( const wxPoint2DDouble &pt ) const
 {
     return sqrt( GetDistanceSquare( pt ) );
@@ -414,8 +411,11 @@ inline wxPoint2DDouble wxPoint2DDouble::operator-()
 
 inline wxPoint2DDouble& wxPoint2DDouble::operator=(const wxPoint2DDouble& pt)
 {
-    m_x = pt.m_x;
-    m_y = pt.m_y;
+    if (this != &pt)
+    {
+        m_x = pt.m_x;
+        m_y = pt.m_y;
+    }
     return *this;
 }
 
@@ -512,7 +512,7 @@ inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxInt32 n)
 // top left and bottom right corner, or by the top left corner and size. A point is contained within the rectangle if
 // left <= x < right  and top <= m_y < bottom , thus it is a half open interval.
 
-class WXDLLEXPORT wxRect2DDouble
+class WXDLLIMPEXP_CORE wxRect2DDouble
 {
 public:
     wxRect2DDouble()
@@ -526,13 +526,13 @@ public:
 */
         // single attribute accessors
 
-    inline wxPoint2DDouble GetPosition()
+    wxPoint2DDouble GetPosition() const
         { return wxPoint2DDouble(m_x, m_y); }
-    inline wxSize GetSize()
+    wxSize GetSize() const
         { return wxSize((int) m_width, (int) m_height); }
 
-    // for the edge and corner accessors there are two setters conterparts, the Set.. functions keep the other corners at their
-        // position whenever sensible, the Move.. functions keep the size of the rect and move the other corners apropriately
+    // for the edge and corner accessors there are two setters counterparts, the Set.. functions keep the other corners at their
+        // position whenever sensible, the Move.. functions keep the size of the rect and move the other corners appropriately
 
     inline wxDouble GetLeft() const { return m_x; }
     inline void SetLeft( wxDouble n ) { m_width += m_x - n; m_x = n; }
@@ -643,7 +643,7 @@ public:
 // top left and bottom right corner, or by the top left corner and size. A point is contained within the rectangle if
 // left <= x < right  and top <= m_y < bottom , thus it is a half open interval.
 
-class WXDLLEXPORT wxRect2DInt
+class WXDLLIMPEXP_CORE wxRect2DInt
 {
 public:
        wxRect2DInt() { m_x = m_y = m_width = m_height = 0; }
@@ -655,11 +655,11 @@ public:
 
         // single attribute accessors
 
-      inline wxPoint2DInt GetPosition() { return wxPoint2DInt(m_x, m_y); }
-       inline wxSize GetSize() { return wxSize(m_width, m_height); }
+       wxPoint2DInt GetPosition() const { return wxPoint2DInt(m_x, m_y); }
+       wxSize GetSize() const { return wxSize(m_width, m_height); }
 
-        // for the edge and corner accessors there are two setters conterparts, the Set.. functions keep the other corners at their
-        // position whenever sensible, the Move.. functions keep the size of the rect and move the other corners apropriately
+        // for the edge and corner accessors there are two setters counterparts, the Set.. functions keep the other corners at their
+        // position whenever sensible, the Move.. functions keep the size of the rect and move the other corners appropriately
 
       inline wxInt32 GetLeft() const { return m_x; }
        inline void SetLeft( wxInt32 n ) { m_width += m_x - n; m_x = n; }
@@ -778,7 +778,7 @@ inline bool wxRect2DInt::operator != (const wxRect2DInt& rect) const
     return !(*this == rect);
 }
 
-class wxTransform2D
+class WXDLLIMPEXP_CORE wxTransform2D
 {
 public :
     virtual ~wxTransform2D() { }
@@ -793,24 +793,6 @@ public :
     virtual wxRect2DInt        InverseTransform( const wxRect2DInt &r ) const ;
 };
 
-inline void    wxTransform2D::Transform( wxRect2DInt* r ) const
-    { wxPoint2DInt a = r->GetLeftTop() , b = r->GetRightBottom(); Transform( &a ); Transform( &b ); *r = wxRect2DInt( a , b ); }
-
-inline wxPoint2DInt    wxTransform2D::Transform( const wxPoint2DInt &pt ) const
-    { wxPoint2DInt res = pt; Transform( &res ); return res; }
-
-inline wxRect2DInt     wxTransform2D::Transform( const wxRect2DInt &r ) const
-    { wxRect2DInt res = r; Transform( &res ); return res; }
-
-inline void    wxTransform2D::InverseTransform( wxRect2DInt* r ) const
-    { wxPoint2DInt a = r->GetLeftTop() , b = r->GetRightBottom(); InverseTransform( &a ); InverseTransform( &b ); *r = wxRect2DInt( a , b ); }
-
-inline wxPoint2DInt    wxTransform2D::InverseTransform( const wxPoint2DInt &pt ) const
-    { wxPoint2DInt res = pt; InverseTransform( &res ); return res; }
-
-inline wxRect2DInt     wxTransform2D::InverseTransform( const wxRect2DInt &r ) const
-    { wxRect2DInt res = r; InverseTransform( &res ); return res; }
-
 
 #endif // wxUSE_GEOMETRY