331 lines
13 KiB
C
331 lines
13 KiB
C
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/////////////////////////////////////////////////////////////////////////////
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// Name: geometry.h
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// Purpose: interface of geometry classes
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// Author: wxWidgets team
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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enum wxOutCode
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{
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wxInside = 0x00 ,
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wxOutLeft = 0x01 ,
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wxOutRight = 0x02 ,
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wxOutTop = 0x08 ,
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wxOutBottom = 0x04
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};
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class wxPoint2DInt
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{
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public :
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wxPoint2DInt();
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wxPoint2DInt( wxInt32 x , wxInt32 y );
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wxPoint2DInt( const wxPoint2DInt &pt );
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wxPoint2DInt( const wxPoint &pt );
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// noops for this class, just return the coords
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void GetFloor( wxInt32 *x , wxInt32 *y ) const;
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void GetRounded( wxInt32 *x , wxInt32 *y ) const;
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wxDouble GetVectorLength() const;
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wxDouble GetVectorAngle() const;
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void SetVectorLength( wxDouble length );
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void SetVectorAngle( wxDouble degrees );
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void SetPolarCoordinates( wxInt32 angle , wxInt32 length );
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// set the vector length to 1.0, preserving the angle
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void Normalize();
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wxDouble GetDistance( const wxPoint2DInt &pt ) const;
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wxDouble GetDistanceSquare( const wxPoint2DInt &pt ) const;
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wxInt32 GetDotProduct( const wxPoint2DInt &vec ) const;
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wxInt32 GetCrossProduct( const wxPoint2DInt &vec ) const;
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// the reflection of this point
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wxPoint2DInt operator-();
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wxPoint2DInt& operator=(const wxPoint2DInt& pt);
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wxPoint2DInt& operator+=(const wxPoint2DInt& pt);
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wxPoint2DInt& operator-=(const wxPoint2DInt& pt);
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wxPoint2DInt& operator*=(const wxPoint2DInt& pt);
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wxPoint2DInt& operator*=(wxDouble n);
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wxPoint2DInt& operator*=(wxInt32 n);
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wxPoint2DInt& operator/=(const wxPoint2DInt& pt);
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wxPoint2DInt& operator/=(wxDouble n);
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wxPoint2DInt& operator/=(wxInt32 n);
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operator wxPoint() const;
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bool operator==(const wxPoint2DInt& pt) const;
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bool operator!=(const wxPoint2DInt& pt) const;
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wxInt32 m_x;
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wxInt32 m_y;
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};
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wxPoint2DInt operator+(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2);
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wxPoint2DInt operator-(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2);
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wxPoint2DInt operator*(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2);
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wxPoint2DInt operator*(wxInt32 n , const wxPoint2DInt& pt);
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wxPoint2DInt operator*(wxInt32 n , const wxPoint2DInt& pt);
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wxPoint2DInt operator*(const wxPoint2DInt& pt , wxInt32 n);
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wxPoint2DInt operator*(const wxPoint2DInt& pt , wxInt32 n);
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wxPoint2DInt operator/(const wxPoint2DInt& pt1 , const wxPoint2DInt& pt2);
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wxPoint2DInt operator/(const wxPoint2DInt& pt , wxInt32 n);
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wxPoint2DInt operator/(const wxPoint2DInt& pt , wxInt32 n);
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// wxPoint2Ds represent a point or a vector in a 2d coordinate system
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class wxPoint2DDouble
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{
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public :
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wxPoint2DDouble();
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wxPoint2DDouble( wxDouble x , wxDouble y );
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wxPoint2DDouble( const wxPoint2DDouble &pt );
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wxPoint2DDouble( const wxPoint2DInt &pt );
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wxPoint2DDouble( const wxPoint &pt );
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// two different conversions to integers, floor and rounding
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void GetFloor( wxInt32 *x , wxInt32 *y ) const;
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void GetRounded( wxInt32 *x , wxInt32 *y ) const;
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wxDouble GetVectorLength() const;
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wxDouble GetVectorAngle() const ;
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void SetVectorLength( wxDouble length );
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void SetVectorAngle( wxDouble degrees );
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void SetPolarCoordinates( wxDouble angle , wxDouble length );
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// set the vector length to 1.0, preserving the angle
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void Normalize();
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wxDouble GetDistance( const wxPoint2DDouble &pt ) const;
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wxDouble GetDistanceSquare( const wxPoint2DDouble &pt ) const;
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wxDouble GetDotProduct( const wxPoint2DDouble &vec ) const;
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wxDouble GetCrossProduct( const wxPoint2DDouble &vec ) const;
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// the reflection of this point
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wxPoint2DDouble operator-();
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wxPoint2DDouble& operator=(const wxPoint2DDouble& pt);
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wxPoint2DDouble& operator+=(const wxPoint2DDouble& pt);
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wxPoint2DDouble& operator-=(const wxPoint2DDouble& pt);
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wxPoint2DDouble& operator*=(const wxPoint2DDouble& pt);
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wxPoint2DDouble& operator*=(wxDouble n);
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wxPoint2DDouble& operator*=(wxInt32 n);
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wxPoint2DDouble& operator/=(const wxPoint2DDouble& pt);
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wxPoint2DDouble& operator/=(wxDouble n);
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wxPoint2DDouble& operator/=(wxInt32 n);
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bool operator==(const wxPoint2DDouble& pt) const;
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bool operator!=(const wxPoint2DDouble& pt) const;
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wxDouble m_x;
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wxDouble m_y;
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};
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wxPoint2DDouble operator+(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2);
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wxPoint2DDouble operator-(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2);
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wxPoint2DDouble operator*(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2);
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wxPoint2DDouble operator*(wxDouble n , const wxPoint2DDouble& pt);
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wxPoint2DDouble operator*(wxInt32 n , const wxPoint2DDouble& pt);
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wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxDouble n);
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wxPoint2DDouble operator*(const wxPoint2DDouble& pt , wxInt32 n);
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wxPoint2DDouble operator/(const wxPoint2DDouble& pt1 , const wxPoint2DDouble& pt2);
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wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxDouble n);
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wxPoint2DDouble operator/(const wxPoint2DDouble& pt , wxInt32 n);
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// 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
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// top left and bottom right corner, or by the top left corner and size. A point is contained within the rectangle if
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// left <= x < right and top <= m_y < bottom , thus it is a half open interval.
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class wxRect2DDouble
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{
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public:
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wxRect2DDouble();
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wxRect2DDouble(wxDouble x, wxDouble y, wxDouble w, wxDouble h);
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// single attribute accessors
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wxPoint2DDouble GetPosition() const;
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wxSize GetSize() const;
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// for the edge and corner accessors there are two setters counterparts, the Set.. functions keep the other corners at their
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// position whenever sensible, the Move.. functions keep the size of the rect and move the other corners appropriately
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wxDouble GetLeft() const;
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void SetLeft( wxDouble n );
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void MoveLeftTo( wxDouble n );
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wxDouble GetTop() const;
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void SetTop( wxDouble n );
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void MoveTopTo( wxDouble n );
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wxDouble GetBottom() const;
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void SetBottom( wxDouble n );
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void MoveBottomTo( wxDouble n );
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wxDouble GetRight() const;
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void SetRight( wxDouble n );
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void MoveRightTo( wxDouble n );
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wxPoint2DDouble GetLeftTop() const;
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void SetLeftTop( const wxPoint2DDouble &pt );
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void MoveLeftTopTo( const wxPoint2DDouble &pt );
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wxPoint2DDouble GetLeftBottom() const;
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void SetLeftBottom( const wxPoint2DDouble &pt );
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void MoveLeftBottomTo( const wxPoint2DDouble &pt );
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wxPoint2DDouble GetRightTop() const;
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void SetRightTop( const wxPoint2DDouble &pt );
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void MoveRightTopTo( const wxPoint2DDouble &pt );
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wxPoint2DDouble GetRightBottom() const;
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void SetRightBottom( const wxPoint2DDouble &pt );
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void MoveRightBottomTo( const wxPoint2DDouble &pt );
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wxPoint2DDouble GetCentre() const;
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void SetCentre( const wxPoint2DDouble &pt );
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void MoveCentreTo( const wxPoint2DDouble &pt );
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wxOutCode GetOutCode( const wxPoint2DDouble &pt ) const;
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wxOutCode GetOutcode(const wxPoint2DDouble &pt) const;
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bool Contains( const wxPoint2DDouble &pt ) const;
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bool Contains( const wxRect2DDouble &rect ) const;
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bool IsEmpty() const;
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bool HaveEqualSize( const wxRect2DDouble &rect ) const;
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void Inset( wxDouble x , wxDouble y );
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void Inset( wxDouble left , wxDouble top ,wxDouble right , wxDouble bottom );
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void Offset( const wxPoint2DDouble &pt );
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void ConstrainTo( const wxRect2DDouble &rect );
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wxPoint2DDouble Interpolate( wxInt32 widthfactor , wxInt32 heightfactor );
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static void Intersect( const wxRect2DDouble &src1 , const wxRect2DDouble &src2 , wxRect2DDouble *dest );
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void Intersect( const wxRect2DDouble &otherRect );
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wxRect2DDouble CreateIntersection( const wxRect2DDouble &otherRect ) const;
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bool Intersects( const wxRect2DDouble &rect ) const;
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static void Union( const wxRect2DDouble &src1 , const wxRect2DDouble &src2 , wxRect2DDouble *dest );
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void Union( const wxRect2DDouble &otherRect );
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void Union( const wxPoint2DDouble &pt );
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wxRect2DDouble CreateUnion( const wxRect2DDouble &otherRect ) const;
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void Scale( wxDouble f );
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void Scale( wxInt32 num , wxInt32 denum );
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wxRect2DDouble& operator = (const wxRect2DDouble& rect);
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bool operator == (const wxRect2DDouble& rect) const;
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bool operator != (const wxRect2DDouble& rect) const;
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wxDouble m_x;
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wxDouble m_y;
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wxDouble m_width;
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wxDouble m_height;
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};
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// 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
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// top left and bottom right corner, or by the top left corner and size. A point is contained within the rectangle if
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// left <= x < right and top <= m_y < bottom , thus it is a half open interval.
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class wxRect2DInt
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{
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public:
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wxRect2DInt();
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wxRect2DInt( const wxRect& r );
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wxRect2DInt(wxInt32 x, wxInt32 y, wxInt32 w, wxInt32 h);
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wxRect2DInt(const wxPoint2DInt& topLeft, const wxPoint2DInt& bottomRight);
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wxRect2DInt(const wxPoint2DInt& pos, const wxSize& size);
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wxRect2DInt(const wxRect2DInt& rect);
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// single attribute accessors
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wxPoint2DInt GetPosition() const;
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wxSize GetSize() const;
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// for the edge and corner accessors there are two setters counterparts, the Set.. functions keep the other corners at their
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// position whenever sensible, the Move.. functions keep the size of the rect and move the other corners appropriately
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wxInt32 GetLeft() const;
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void SetLeft( wxInt32 n );
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void MoveLeftTo( wxInt32 n );
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wxInt32 GetTop() const;
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void SetTop( wxInt32 n );
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void MoveTopTo( wxInt32 n );
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wxInt32 GetBottom() const;
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void SetBottom( wxInt32 n );
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void MoveBottomTo( wxInt32 n );
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wxInt32 GetRight() const;
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void SetRight( wxInt32 n );
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void MoveRightTo( wxInt32 n );
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wxPoint2DInt GetLeftTop() const;
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void SetLeftTop( const wxPoint2DInt &pt ) ;
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void MoveLeftTopTo( const wxPoint2DInt &pt ) ;
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wxPoint2DInt GetLeftBottom() const ;
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void SetLeftBottom( const wxPoint2DInt &pt ) ;
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void MoveLeftBottomTo( const wxPoint2DInt &pt ) ;
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wxPoint2DInt GetRightTop() const ;
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void SetRightTop( const wxPoint2DInt &pt ) ;
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void MoveRightTopTo( const wxPoint2DInt &pt ) ;
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wxPoint2DInt GetRightBottom() const ;
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void SetRightBottom( const wxPoint2DInt &pt ) ;
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void MoveRightBottomTo( const wxPoint2DInt &pt ) ;
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wxPoint2DInt GetCentre() const ;
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void SetCentre( const wxPoint2DInt &pt ) ;
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void MoveCentreTo( const wxPoint2DInt &pt ) ;
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wxOutCode GetOutCode( const wxPoint2DInt &pt ) const;
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wxOutCode GetOutcode( const wxPoint2DInt &pt ) const;
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bool Contains( const wxPoint2DInt &pt ) const;
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bool Contains( const wxRect2DInt &rect ) const;
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bool IsEmpty() const;
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bool HaveEqualSize( const wxRect2DInt &rect ) const;
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void Inset( wxInt32 x , wxInt32 y );
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void Inset( wxInt32 left , wxInt32 top ,wxInt32 right , wxInt32 bottom );
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void Offset( const wxPoint2DInt &pt );
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void ConstrainTo( const wxRect2DInt &rect );
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wxPoint2DInt Interpolate( wxInt32 widthfactor , wxInt32 heightfactor );
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static void Intersect( const wxRect2DInt &src1 , const wxRect2DInt &src2 , wxRect2DInt *dest );
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void Intersect( const wxRect2DInt &otherRect );
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wxRect2DInt CreateIntersection( const wxRect2DInt &otherRect ) const;
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bool Intersects( const wxRect2DInt &rect ) const;
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static void Union( const wxRect2DInt &src1 , const wxRect2DInt &src2 , wxRect2DInt *dest );
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void Union( const wxRect2DInt &otherRect );
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void Union( const wxPoint2DInt &pt );
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wxRect2DInt CreateUnion( const wxRect2DInt &otherRect ) const;
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void Scale( wxInt32 f );
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void Scale( wxInt32 num , wxInt32 denum );
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wxRect2DInt& operator = (const wxRect2DInt& rect);
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bool operator == (const wxRect2DInt& rect) const;
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bool operator != (const wxRect2DInt& rect) const;
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wxInt32 m_x;
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wxInt32 m_y;
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wxInt32 m_width;
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wxInt32 m_height;
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};
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class wxTransform2D
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{
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public :
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virtual ~wxTransform2D();
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virtual void Transform( wxPoint2DInt* pt )const = 0;
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virtual void Transform( wxRect2DInt* r ) const;
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virtual wxPoint2DInt Transform( const wxPoint2DInt &pt ) const;
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virtual wxRect2DInt Transform( const wxRect2DInt &r ) const ;
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virtual void InverseTransform( wxPoint2DInt* pt ) const = 0;
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virtual void InverseTransform( wxRect2DInt* r ) const ;
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virtual wxPoint2DInt InverseTransform( const wxPoint2DInt &pt ) const ;
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virtual wxRect2DInt InverseTransform( const wxRect2DInt &r ) const ;
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};
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