///////////////////////////////////////////////////////////////////////////// // Name: wx/geometry.h // Purpose: Common Geometry Classes // Author: Stefan Csomor // Modified by: // Created: 08/05/99 // RCS-ID: \$Id: geometry.h 49294 2007-10-21 17:59:09Z SC \$ // Copyright: (c) 1999 Stefan Csomor // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_GEOMETRY_H_ #define _WX_GEOMETRY_H_ #include "wx/defs.h" #if wxUSE_GEOMETRY #include "wx/utils.h" #include "wx/gdicmn.h" #include "wx/math.h" class WXDLLIMPEXP_BASE wxDataInputStream; class WXDLLIMPEXP_BASE 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 ( (wxDouble)(pt.m_x-m_x)*(pt.m_x-m_x) + (wxDouble)(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 void wxPoint2DDouble::Normalize() { SetVectorLength( 1 ); } 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 wxIsSameDouble(m_x, pt.m_x) && wxIsSameDouble(m_y, pt.m_y); } inline bool wxPoint2DDouble::operator!=(const wxPoint2DDouble& pt) const { return !(*this == pt); } 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 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; } 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) 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; 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 ~wxTransform2D() { } 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_