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wxWidgets/include/wx/geometry.h
Julian Smart 655719367a Use old licence name 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@27408 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2004-05-23 20:53:33 +00:00

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/////////////////////////////////////////////////////////////////////////////
// Name: wx/geometry.h
// Purpose: Common Geometry Classes
// Author: Stefan Csomor
// Modified by:
// Created: 08/05/99
// RCS-ID:
// Copyright: (c) 1999 Stefan Csomor
// 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
class wxDataInputStream;
class wxDataOutputStream;
// clipping from Cohen-Sutherland
enum wxOutCode
{
wxInside = 0x00 ,
wxOutLeft = 0x01 ,
wxOutRight = 0x02 ,
wxOutTop = 0x08 ,
wxOutBottom = 0x04
};
class WXDLLEXPORT wxPoint2DInt
{
public :
inline wxPoint2DInt();
inline wxPoint2DInt( wxInt32 x , wxInt32 y );
inline wxPoint2DInt( const wxPoint2DInt &pt );
inline wxPoint2DInt( const wxPoint &pt );
// noops for this class, just return the coords
inline void GetFloor( wxInt32 *x , wxInt32 *y ) const;
inline void GetRounded( wxInt32 *x , wxInt32 *y ) const;
inline wxDouble GetVectorLength() const;
wxDouble GetVectorAngle() const;
inline void SetVectorLength( wxDouble length );
void SetVectorAngle( wxDouble degrees );
void SetPolarCoordinates( wxInt32 angle , wxInt32 length );
// set the vector length to 1.0, preserving the angle
inline void Normalize();
inline wxDouble GetDistance( const wxPoint2DInt &pt ) const;
inline wxDouble GetDistanceSquare( const wxPoint2DInt &pt ) const;
inline wxInt32 GetDotProduct( const wxPoint2DInt &vec ) const;
inline wxInt32 GetCrossProduct( const wxPoint2DInt &vec ) const;
// the reflection of this point
inline wxPoint2DInt operator-();
inline wxPoint2DInt& operator=(const wxPoint2DInt& pt);
inline wxPoint2DInt& operator+=(const wxPoint2DInt& pt);
inline wxPoint2DInt& operator-=(const wxPoint2DInt& pt);
inline wxPoint2DInt& operator*=(const wxPoint2DInt& pt);
inline wxPoint2DInt& operator*=(wxDouble n);
inline wxPoint2DInt& operator*=(wxInt32 n);
inline wxPoint2DInt& operator/=(const wxPoint2DInt& pt);
inline wxPoint2DInt& operator/=(wxDouble n);
inline wxPoint2DInt& operator/=(wxInt32 n);
inline operator wxPoint() const;
inline bool operator==(const wxPoint2DInt& pt) const;
inline bool operator!=(const wxPoint2DInt& pt) const;
#if wxUSE_STREAMS
void WriteTo( wxDataOutputStream &stream ) const;
void ReadFrom( wxDataInputStream &stream );
#endif // wxUSE_STREAMS
wxInt32 m_x;
wxInt32 m_y;
};
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()
{
m_x = 0;
m_y = 0;
}
inline wxPoint2DInt::wxPoint2DInt( wxInt32 x , wxInt32 y )
{
m_x = x;
m_y = y;
}
inline wxPoint2DInt::wxPoint2DInt( const wxPoint2DInt &pt )
{
m_x = pt.m_x;
m_y = pt.m_y;
}
inline wxPoint2DInt::wxPoint2DInt( const wxPoint &pt )
{
m_x = pt.x;
m_y = pt.y;
}
inline void wxPoint2DInt::GetFloor( wxInt32 *x , wxInt32 *y ) const
{
if ( x )
*x = m_x;
if ( y )
*y = m_y;
}
inline void wxPoint2DInt::GetRounded( wxInt32 *x , wxInt32 *y ) const
{
GetFloor(x, y);
}
inline wxDouble wxPoint2DInt::GetVectorLength() const
{
// cast needed MIPSpro compiler under SGI
return sqrt( (double)(m_x)*(m_x) + (m_y)*(m_y) );
}
inline void wxPoint2DInt::SetVectorLength( wxDouble length )
{
wxDouble before = GetVectorLength();
m_x = (wxInt32)(m_x * length / before);
m_y = (wxInt32)(m_y * length / before);
}
inline void wxPoint2DInt::Normalize()
{
SetVectorLength( 1 );
}
inline wxDouble wxPoint2DInt::GetDistance( const wxPoint2DInt &pt ) const
{
return sqrt( GetDistanceSquare( pt ) );
}
inline wxDouble wxPoint2DInt::GetDistanceSquare( const wxPoint2DInt &pt ) const
{
return ( (pt.m_x-m_x)*(pt.m_x-m_x) + (pt.m_y-m_y)*(pt.m_y-m_y) );
}
inline wxInt32 wxPoint2DInt::GetDotProduct( const wxPoint2DInt &vec ) const
{
return ( m_x * vec.m_x + m_y * vec.m_y );
}
inline wxInt32 wxPoint2DInt::GetCrossProduct( const wxPoint2DInt &vec ) const
{
return ( m_x * vec.m_y - vec.m_x * m_y );
}
inline wxPoint2DInt::operator wxPoint() const
{
return wxPoint( m_x, m_y);
}
inline wxPoint2DInt wxPoint2DInt::operator-()
{
return wxPoint2DInt( -m_x, -m_y);
}
inline wxPoint2DInt& wxPoint2DInt::operator=(const wxPoint2DInt& pt)
{
m_x = pt.m_x;
m_y = pt.m_y;
return *this;
}
inline wxPoint2DInt& wxPoint2DInt::operator+=(const wxPoint2DInt& pt)
{
m_x = m_x + pt.m_x;
m_y = m_y + pt.m_y;
return *this;
}
inline wxPoint2DInt& wxPoint2DInt::operator-=(const wxPoint2DInt& pt)
{
m_x = m_x - pt.m_x;
m_y = m_y - pt.m_y;
return *this;
}
inline wxPoint2DInt& wxPoint2DInt::operator*=(const wxPoint2DInt& pt)
{
m_x = m_x + pt.m_x;
m_y = m_y + pt.m_y;
return *this;
}
inline wxPoint2DInt& wxPoint2DInt::operator/=(const wxPoint2DInt& pt)
{
m_x = m_x - pt.m_x;
m_y = m_y - pt.m_y;
return *this;
}
inline bool wxPoint2DInt::operator==(const wxPoint2DInt& pt) const
{
return m_x == pt.m_x && m_y == pt.m_y;
}
inline bool wxPoint2DInt::operator!=(const wxPoint2DInt& pt) const
{
return m_x != pt.m_x || m_y != pt.m_y;
}
inline wxPoint2DInt operator+(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2)
{
return wxPoint2DInt( pt1.m_x + pt2.m_x , pt1.m_y + pt2.m_y );
}
inline wxPoint2DInt operator-(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2)
{
return wxPoint2DInt( pt1.m_x - pt2.m_x , pt1.m_y - pt2.m_y );
}
inline wxPoint2DInt operator*(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2)
{
return wxPoint2DInt( pt1.m_x * pt2.m_x , pt1.m_y * pt2.m_y );
}
inline wxPoint2DInt operator*(wxInt32 n , const wxPoint2DInt& pt)
{
return wxPoint2DInt( pt.m_x * n , pt.m_y * n );
}
inline wxPoint2DInt operator*(wxDouble n , const wxPoint2DInt& pt)
{
return wxPoint2DInt( (int) (pt.m_x * n) , (int) (pt.m_y * n) );
}
inline wxPoint2DInt operator*(const wxPoint2DInt& pt , wxInt32 n)
{
return wxPoint2DInt( pt.m_x * n , pt.m_y * n );
}
inline wxPoint2DInt operator*(const wxPoint2DInt& pt , wxDouble n)
{
return wxPoint2DInt( (int) (pt.m_x * n) , (int) (pt.m_y * n) );
}
inline wxPoint2DInt operator/(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2)
{
return wxPoint2DInt( pt1.m_x / pt2.m_x , pt1.m_y / pt2.m_y );
}
inline wxPoint2DInt operator/(const wxPoint2DInt& pt , wxInt32 n)
{
return wxPoint2DInt( pt.m_x / n , pt.m_y / n );
}
inline wxPoint2DInt operator/(const wxPoint2DInt& pt , wxDouble n)
{
return wxPoint2DInt( (int) (pt.m_x / n) , (int) (pt.m_y / n) );
}
// wxPoint2Ds represent a point or a vector in a 2d coordinate system
class WXDLLEXPORT wxPoint2DDouble
{
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 ; }
// two different conversions to integers, floor and rounding
inline void GetFloor( wxInt32 *x , wxInt32 *y ) const;
inline void GetRounded( wxInt32 *x , wxInt32 *y ) const;
inline wxDouble GetVectorLength() const;
wxDouble GetVectorAngle() const ;
void SetVectorLength( wxDouble length );
void SetVectorAngle( wxDouble degrees );
void SetPolarCoordinates( wxDouble angle , wxDouble length );
// set the vector length to 1.0, preserving the angle
void Normalize();
inline wxDouble GetDistance( const wxPoint2DDouble &pt ) const;
inline wxDouble GetDistanceSquare( const wxPoint2DDouble &pt ) const;
inline wxDouble GetDotProduct( const wxPoint2DDouble &vec ) const;
inline wxDouble GetCrossProduct( const wxPoint2DDouble &vec ) const;
// the reflection of this point
inline wxPoint2DDouble operator-();
inline wxPoint2DDouble& operator=(const wxPoint2DDouble& pt);
inline wxPoint2DDouble& operator+=(const wxPoint2DDouble& pt);
inline wxPoint2DDouble& operator-=(const wxPoint2DDouble& pt);
inline wxPoint2DDouble& operator*=(const wxPoint2DDouble& pt);
inline wxPoint2DDouble& operator*=(wxDouble n);
inline wxPoint2DDouble& operator*=(wxInt32 n);
inline wxPoint2DDouble& operator/=(const wxPoint2DDouble& pt);
inline wxPoint2DDouble& operator/=(wxDouble n);
inline wxPoint2DDouble& operator/=(wxInt32 n);
inline bool operator==(const wxPoint2DDouble& pt) const;
inline bool operator!=(const wxPoint2DDouble& pt) const;
wxDouble m_x;
wxDouble m_y;
};
inline wxPoint2DDouble operator+(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2);
inline wxPoint2DDouble operator-(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2);
inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2);
inline wxPoint2DDouble operator*(wxDouble n , const wxPoint2DDouble& pt);
inline wxPoint2DDouble operator*(wxInt32 n , const wxPoint2DDouble& pt);
inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxDouble n);
inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxInt32 n);
inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2);
inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxDouble n);
inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxInt32 n);
inline wxPoint2DDouble::wxPoint2DDouble()
{
m_x = 0.0;
m_y = 0.0;
}
inline wxPoint2DDouble::wxPoint2DDouble( wxDouble x , wxDouble y )
{
m_x = x;
m_y = y;
}
inline wxPoint2DDouble::wxPoint2DDouble( const wxPoint2DDouble &pt )
{
m_x = pt.m_x;
m_y = pt.m_y;
}
inline void wxPoint2DDouble::GetFloor( wxInt32 *x , wxInt32 *y ) const
{
*x = (wxInt32) floor( m_x );
*y = (wxInt32) floor( m_y );
}
inline void wxPoint2DDouble::GetRounded( wxInt32 *x , wxInt32 *y ) const
{
*x = (wxInt32) floor( m_x + 0.5 );
*y = (wxInt32) floor( m_y + 0.5);
}
inline wxDouble wxPoint2DDouble::GetVectorLength() const
{
return sqrt( (m_x)*(m_x) + (m_y)*(m_y) ) ;
}
inline void wxPoint2DDouble::SetVectorLength( wxDouble length )
{
wxDouble before = GetVectorLength() ;
m_x = (m_x * length / before) ;
m_y = (m_y * length / before) ;
}
inline wxDouble wxPoint2DDouble::GetDistance( const wxPoint2DDouble &pt ) const
{
return sqrt( GetDistanceSquare( pt ) );
}
inline wxDouble wxPoint2DDouble::GetDistanceSquare( const wxPoint2DDouble &pt ) const
{
return ( (pt.m_x-m_x)*(pt.m_x-m_x) + (pt.m_y-m_y)*(pt.m_y-m_y) );
}
inline wxDouble wxPoint2DDouble::GetDotProduct( const wxPoint2DDouble &vec ) const
{
return ( m_x * vec.m_x + m_y * vec.m_y );
}
inline wxDouble wxPoint2DDouble::GetCrossProduct( const wxPoint2DDouble &vec ) const
{
return ( m_x * vec.m_y - vec.m_x * m_y );
}
inline wxPoint2DDouble wxPoint2DDouble::operator-()
{
return wxPoint2DDouble( -m_x, -m_y);
}
inline wxPoint2DDouble& wxPoint2DDouble::operator=(const wxPoint2DDouble& pt)
{
m_x = pt.m_x;
m_y = pt.m_y;
return *this;
}
inline wxPoint2DDouble& wxPoint2DDouble::operator+=(const wxPoint2DDouble& pt)
{
m_x = m_x + pt.m_x;
m_y = m_y + pt.m_y;
return *this;
}
inline wxPoint2DDouble& wxPoint2DDouble::operator-=(const wxPoint2DDouble& pt)
{
m_x = m_x - pt.m_x;
m_y = m_y - pt.m_y;
return *this;
}
inline wxPoint2DDouble& wxPoint2DDouble::operator*=(const wxPoint2DDouble& pt)
{
m_x = m_x * pt.m_x;
m_y = m_y * pt.m_y;
return *this;
}
inline wxPoint2DDouble& wxPoint2DDouble::operator/=(const wxPoint2DDouble& pt)
{
m_x = m_x / pt.m_x;
m_y = m_y / pt.m_y;
return *this;
}
inline bool wxPoint2DDouble::operator==(const wxPoint2DDouble& pt) const
{
return m_x == pt.m_x && m_y == pt.m_y;
}
inline bool wxPoint2DDouble::operator!=(const wxPoint2DDouble& pt) const
{
return m_x != pt.m_x || m_y != pt.m_y;
}
inline wxPoint2DDouble operator+(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2)
{
return wxPoint2DDouble( pt1.m_x + pt2.m_x , pt1.m_y + pt2.m_y );
}
inline wxPoint2DDouble operator-(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2)
{
return wxPoint2DDouble( pt1.m_x - pt2.m_x , pt1.m_y - pt2.m_y );
}
inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2)
{
return wxPoint2DDouble( pt1.m_x * pt2.m_x , pt1.m_y * pt2.m_y );
}
inline wxPoint2DDouble operator*(wxDouble n , const wxPoint2DDouble& pt)
{
return wxPoint2DDouble( pt.m_x * n , pt.m_y * n );
}
inline wxPoint2DDouble operator*(wxInt32 n , const wxPoint2DDouble& pt)
{
return wxPoint2DDouble( pt.m_x * n , pt.m_y * n );
}
inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxDouble n)
{
return wxPoint2DDouble( pt.m_x * n , pt.m_y * n );
}
inline wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxInt32 n)
{
return wxPoint2DDouble( pt.m_x * n , pt.m_y * n );
}
inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2)
{
return wxPoint2DDouble( pt1.m_x / pt2.m_x , pt1.m_y / pt2.m_y );
}
inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxDouble n)
{
return wxPoint2DDouble( pt.m_x / n , pt.m_y / n );
}
inline wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxInt32 n)
{
return wxPoint2DDouble( pt.m_x / n , pt.m_y / n );
}
// 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
// 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
{
public:
wxRect2DDouble()
{ m_x = m_y = m_width = m_height = 0; }
wxRect2DDouble(wxDouble x, wxDouble y, wxDouble w, wxDouble h)
{ m_x = x; m_y = y; m_width = w; m_height = h; }
/*
wxRect2DDouble(const wxPoint2DDouble& topLeft, const wxPoint2DDouble& bottomRight);
wxRect2DDouble(const wxPoint2DDouble& pos, const wxSize& size);
wxRect2DDouble(const wxRect2DDouble& rect);
*/
// single attribute accessors
inline wxPoint2DDouble GetPosition()
{ return wxPoint2DDouble(m_x, m_y); }
inline wxSize GetSize()
{ 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
inline wxDouble GetLeft() const { return m_x; }
inline void SetLeft( wxDouble n ) { m_width += m_x - n; m_x = n; }
inline void MoveLeftTo( wxDouble n ) { m_x = n; }
inline wxDouble GetTop() const { return m_y; }
inline void SetTop( wxDouble n ) { m_height += m_y - n; m_y = n; }
inline void MoveTopTo( wxDouble n ) { m_y = n; }
inline wxDouble GetBottom() const { return m_y + m_height; }
inline void SetBottom( wxDouble n ) { m_height += n - (m_y+m_height);}
inline void MoveBottomTo( wxDouble n ) { m_y = n - m_height; }
inline wxDouble GetRight() const { return m_x + m_width; }
inline void SetRight( wxDouble n ) { m_width += n - (m_x+m_width) ; }
inline void MoveRightTo( wxDouble n ) { m_x = n - m_width; }
inline wxPoint2DDouble GetLeftTop() const
{ return wxPoint2DDouble( m_x , m_y ); }
inline void SetLeftTop( const wxPoint2DDouble &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; }
inline void MoveLeftTopTo( const wxPoint2DDouble &pt )
{ m_x = pt.m_x; m_y = pt.m_y; }
inline wxPoint2DDouble GetLeftBottom() const
{ return wxPoint2DDouble( m_x , m_y + m_height ); }
inline void SetLeftBottom( const wxPoint2DDouble &pt )
{ m_width += m_x - pt.m_x; m_height += pt.m_y - (m_y+m_height) ; m_x = pt.m_x; }
inline void MoveLeftBottomTo( const wxPoint2DDouble &pt )
{ m_x = pt.m_x; m_y = pt.m_y - m_height; }
inline wxPoint2DDouble GetRightTop() const
{ return wxPoint2DDouble( m_x+m_width , m_y ); }
inline void SetRightTop( const wxPoint2DDouble &pt )
{ m_width += pt.m_x - ( m_x + m_width ); m_height += m_y - pt.m_y; m_y = pt.m_y; }
inline void MoveRightTopTo( const wxPoint2DDouble &pt )
{ m_x = pt.m_x - m_width; m_y = pt.m_y; }
inline wxPoint2DDouble GetRightBottom() const
{ return wxPoint2DDouble( m_x+m_width , m_y + m_height ); }
inline void SetRightBottom( const wxPoint2DDouble &pt )
{ m_width += pt.m_x - ( m_x + m_width ); m_height += pt.m_y - (m_y+m_height);}
inline void MoveRightBottomTo( const wxPoint2DDouble &pt )
{ m_x = pt.m_x - m_width; m_y = pt.m_y - m_height; }
inline wxPoint2DDouble GetCentre() const
{ return wxPoint2DDouble( m_x+m_width/2 , m_y+m_height/2 ); }
inline void SetCentre( const wxPoint2DDouble &pt )
{ MoveCentreTo( pt ); } // since this is impossible without moving...
inline void MoveCentreTo( const wxPoint2DDouble &pt )
{ m_x += pt.m_x - (m_x+m_width/2) , m_y += pt.m_y -(m_y+m_height/2); }
inline wxOutCode GetOutCode( const wxPoint2DDouble &pt ) const
{ return (wxOutCode) (( ( pt.m_x < m_x ) ? wxOutLeft : 0 ) +
( ( 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 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 ); }
inline bool HaveEqualSize( const wxRect2DDouble &rect ) const
{ return ( rect.m_width == m_width && 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; }
inline void Inset( wxDouble left , wxDouble top ,wxDouble right , wxDouble bottom )
{ m_x += left; m_y += top; m_width -= left + right; m_height -= top + bottom;}
inline void Offset( const wxPoint2DDouble &pt )
{ m_x += pt.m_x; m_y += pt.m_y; }
void ConstrainTo( const wxRect2DDouble &rect );
inline wxPoint2DDouble Interpolate( wxInt32 widthfactor , wxInt32 heightfactor )
{ return wxPoint2DDouble( m_x + m_width * widthfactor , m_y + m_height * heightfactor ); }
static void Intersect( const wxRect2DDouble &src1 , const wxRect2DDouble &src2 , wxRect2DDouble *dest );
inline void Intersect( const wxRect2DDouble &otherRect )
{ Intersect( *this , otherRect , this ); }
inline wxRect2DDouble CreateIntersection( const wxRect2DDouble &otherRect ) const
{ wxRect2DDouble result; Intersect( *this , otherRect , &result); return result; }
bool Intersects( const wxRect2DDouble &rect ) const;
static void Union( const wxRect2DDouble &src1 , const wxRect2DDouble &src2 , wxRect2DDouble *dest );
void Union( const wxRect2DDouble &otherRect )
{ Union( *this , otherRect , this ); }
void Union( const wxPoint2DDouble &pt );
inline wxRect2DDouble CreateUnion( const wxRect2DDouble &otherRect ) const
{ wxRect2DDouble result; Union( *this , otherRect , &result); return result; }
inline void Scale( wxDouble f )
{ m_x *= f; m_y *= f; m_width *= f; m_height *= f;}
inline void Scale( wxInt32 num , wxInt32 denum )
{ m_x *= ((wxDouble)num)/((wxDouble)denum); m_y *= ((wxDouble)num)/((wxDouble)denum);
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)
{ return !(*this == rect); }
wxDouble m_x;
wxDouble m_y;
wxDouble m_width;
wxDouble m_height;
};
// 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
// 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
{
public:
wxRect2DInt() { m_x = m_y = m_width = m_height = 0; }
wxRect2DInt( const wxRect& r ) { m_x = r.x ; m_y = r.y ; m_width = r.width ; m_height = r.height ; }
wxRect2DInt(wxInt32 x, wxInt32 y, wxInt32 w, wxInt32 h) { m_x = x; m_y = y; m_width = w; m_height = h; }
wxRect2DInt(const wxPoint2DInt& topLeft, const wxPoint2DInt& bottomRight);
inline wxRect2DInt(const wxPoint2DInt& pos, const wxSize& size);
inline wxRect2DInt(const wxRect2DInt& rect);
// single attribute accessors
inline wxPoint2DInt GetPosition() { return wxPoint2DInt(m_x, m_y); }
inline wxSize GetSize() { 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
inline wxInt32 GetLeft() const { return m_x; }
inline void SetLeft( wxInt32 n ) { m_width += m_x - n; m_x = n; }
inline void MoveLeftTo( wxInt32 n ) { m_x = n; }
inline wxInt32 GetTop() const { return m_y; }
inline void SetTop( wxInt32 n ) { m_height += m_y - n; m_y = n; }
inline void MoveTopTo( wxInt32 n ) { m_y = n; }
inline wxInt32 GetBottom() const { return m_y + m_height; }
inline void SetBottom( wxInt32 n ) { m_height += n - (m_y+m_height);}
inline void MoveBottomTo( wxInt32 n ) { m_y = n - m_height; }
inline wxInt32 GetRight() const { return m_x + m_width; }
inline void SetRight( wxInt32 n ) { m_width += n - (m_x+m_width) ; }
inline void MoveRightTo( wxInt32 n ) { m_x = n - m_width; }
inline wxPoint2DInt GetLeftTop() const { return wxPoint2DInt( m_x , m_y ); }
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; }
inline void MoveLeftTopTo( const wxPoint2DInt &pt ) { m_x = pt.m_x; m_y = pt.m_y; }
inline wxPoint2DInt GetLeftBottom() const { return wxPoint2DInt( m_x , m_y + m_height ); }
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; }
inline void MoveLeftBottomTo( const wxPoint2DInt &pt ) { m_x = pt.m_x; m_y = pt.m_y - m_height; }
inline wxPoint2DInt GetRightTop() const { return wxPoint2DInt( m_x+m_width , m_y ); }
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; }
inline void MoveRightTopTo( const wxPoint2DInt &pt ) { m_x = pt.m_x - m_width; m_y = pt.m_y; }
inline wxPoint2DInt GetRightBottom() const { return wxPoint2DInt( m_x+m_width , m_y + m_height ); }
inline void SetRightBottom( const wxPoint2DInt &pt ) { m_width += pt.m_x - ( m_x + m_width ); m_height += pt.m_y - (m_y+m_height);}
inline void MoveRightBottomTo( const wxPoint2DInt &pt ) { m_x = pt.m_x - m_width; m_y = pt.m_y - m_height; }
inline wxPoint2DInt GetCentre() const { return wxPoint2DInt( m_x+m_width/2 , m_y+m_height/2 ); }
inline void SetCentre( const wxPoint2DInt &pt ) { MoveCentreTo( pt ); } // since this is impossible without moving...
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); }
inline wxOutCode GetOutCode( const wxPoint2DInt &pt ) const
{ return (wxOutCode) (( ( pt.m_x < m_x ) ? wxOutLeft : 0 ) +
( ( 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 bool Contains( const wxPoint2DInt &pt ) const
{ return GetOutCode( pt ) == wxInside; }
inline bool Contains( const wxRect2DInt &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 ); }
inline bool HaveEqualSize( const wxRect2DInt &rect ) const
{ return ( rect.m_width == m_width && rect.m_height == m_height ); }
inline void Inset( wxInt32 x , wxInt32 y ) { m_x += x; m_y += y; m_width -= 2 * x; m_height -= 2 * y; }
inline void Inset( wxInt32 left , wxInt32 top ,wxInt32 right , wxInt32 bottom )
{ m_x += left; m_y += top; m_width -= left + right; m_height -= top + bottom;}
inline void Offset( const wxPoint2DInt &pt ) { m_x += pt.m_x; m_y += pt.m_y; }
void ConstrainTo( const wxRect2DInt &rect );
inline wxPoint2DInt Interpolate( wxInt32 widthfactor , wxInt32 heightfactor ) { return wxPoint2DInt( m_x + m_width * widthfactor , m_y + m_height * heightfactor ); }
static void Intersect( const wxRect2DInt &src1 , const wxRect2DInt &src2 , wxRect2DInt *dest );
inline void Intersect( const wxRect2DInt &otherRect ) { Intersect( *this , otherRect , this ); }
inline wxRect2DInt CreateIntersection( const wxRect2DInt &otherRect ) const { wxRect2DInt result; Intersect( *this , otherRect , &result); return result; }
bool Intersects( const wxRect2DInt &rect ) const;
static void Union( const wxRect2DInt &src1 , const wxRect2DInt &src2 , wxRect2DInt *dest );
void Union( const wxRect2DInt &otherRect ) { Union( *this , otherRect , this ); }
void Union( const wxPoint2DInt &pt );
inline wxRect2DInt CreateUnion( const wxRect2DInt &otherRect ) const { wxRect2DInt result; Union( *this , otherRect , &result); return result; }
inline void Scale( wxInt32 f ) { m_x *= f; m_y *= f; m_width *= f; m_height *= f;}
inline void Scale( wxInt32 num , wxInt32 denum )
{ m_x *= ((wxInt32)num)/((wxInt32)denum); m_y *= ((wxInt32)num)/((wxInt32)denum);
m_width *= ((wxInt32)num)/((wxInt32)denum); m_height *= ((wxInt32)num)/((wxInt32)denum);}
wxRect2DInt& operator = (const wxRect2DInt& rect);
bool operator == (const wxRect2DInt& rect) const;
bool operator != (const wxRect2DInt& rect) const;
#if wxUSE_STREAMS
void WriteTo( wxDataOutputStream &stream ) const;
void ReadFrom( wxDataInputStream &stream );
#endif // wxUSE_STREAMS
wxInt32 m_x;
wxInt32 m_y;
wxInt32 m_width;
wxInt32 m_height;
};
inline wxRect2DInt::wxRect2DInt( const wxRect2DInt &r )
{
m_x = r.m_x;
m_y = r.m_y;
m_width = r.m_width;
m_height = r.m_height;
}
inline wxRect2DInt::wxRect2DInt( const wxPoint2DInt &a , const wxPoint2DInt &b)
{
m_x = wxMin( a.m_x , b.m_x );
m_y = wxMin( a.m_y , b.m_y );
m_width = abs( a.m_x - b.m_x );
m_height = abs( a.m_y - b.m_y );
}
inline wxRect2DInt::wxRect2DInt( const wxPoint2DInt& pos, const wxSize& size)
{
m_x = pos.m_x;
m_y = pos.m_y;
m_width = size.x;
m_height = size.y;
}
inline bool wxRect2DInt::operator == (const wxRect2DInt& rect) const
{
return (m_x==rect.m_x && m_y==rect.m_y &&
m_width==rect.m_width && m_height==rect.m_height);
}
inline bool wxRect2DInt::operator != (const wxRect2DInt& rect) const
{
return !(*this == rect);
}
class wxTransform2D
{
public :
virtual void Transform( wxPoint2DInt* pt )const = 0;
virtual void Transform( wxRect2DInt* r ) const;
virtual wxPoint2DInt Transform( const wxPoint2DInt &pt ) const;
virtual wxRect2DInt Transform( const wxRect2DInt &r ) const ;
virtual void InverseTransform( wxPoint2DInt* pt ) const = 0;
virtual void InverseTransform( wxRect2DInt* r ) const ;
virtual wxPoint2DInt InverseTransform( const wxPoint2DInt &pt ) const ;
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
#endif // _WX_GEOMETRY_H_
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