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See the License for the * specific language governing permissions and limitations * under the License. * *************************************************************/ #ifndef _BGFX_TUPLE_B2I64TUPLE_HXX #define _BGFX_TUPLE_B2I64TUPLE_HXX #include #include #include namespace basegfx { /** Base class for all Points/Vectors with two sal_Int64 values This class provides all methods common to Point avd Vector classes which are derived from here. @derive Use this class to implement Points or Vectors which are based on two sal_Int64 values */ class BASEGFX_DLLPUBLIC B2I64Tuple { protected: sal_Int64 mnX; sal_Int64 mnY; public: /** Create a 2D Tuple The tuple is initialized to (0, 0) */ B2I64Tuple() : mnX(0), mnY(0) {} /** Create a 2D Tuple @param fX This parameter is used to initialize the X-coordinate of the 2D Tuple. @param fY This parameter is used to initialize the Y-coordinate of the 2D Tuple. */ B2I64Tuple(sal_Int64 fX, sal_Int64 fY) : mnX( fX ), mnY( fY ) {} /** Create a copy of a 2D Tuple @param rTup The 2D Tuple which will be copied. */ B2I64Tuple(const B2I64Tuple& rTup) : mnX( rTup.mnX ), mnY( rTup.mnY ) {} ~B2I64Tuple() {} /// Get X-Coordinate of 2D Tuple sal_Int64 getX() const { return mnX; } /// Get Y-Coordinate of 2D Tuple sal_Int64 getY() const { return mnY; } /// Set X-Coordinate of 2D Tuple void setX(sal_Int64 fX) { mnX = fX; } /// Set Y-Coordinate of 2D Tuple void setY(sal_Int64 fY) { mnY = fY; } /// Array-access to 2D Tuple const sal_Int64& operator[] (int nPos) const { // Here, normally one if(...) should be used. In the assumption that // both sal_Int64 members can be accessed as an array a shortcut is used here. // if(0 == nPos) return mnX; return mnY; return *((&mnX) + nPos); } /// Array-access to 2D Tuple sal_Int64& operator[] (int nPos) { // Here, normally one if(...) should be used. In the assumption that // both sal_Int64 members can be accessed as an array a shortcut is used here. // if(0 == nPos) return mnX; return mnY; return *((&mnX) + nPos); } // operators ////////////////////////////////////////////////////////////////////// B2I64Tuple& operator+=( const B2I64Tuple& rTup ) { mnX += rTup.mnX; mnY += rTup.mnY; return *this; } B2I64Tuple& operator-=( const B2I64Tuple& rTup ) { mnX -= rTup.mnX; mnY -= rTup.mnY; return *this; } B2I64Tuple& operator/=( const B2I64Tuple& rTup ) { mnX /= rTup.mnX; mnY /= rTup.mnY; return *this; } B2I64Tuple& operator*=( const B2I64Tuple& rTup ) { mnX *= rTup.mnX; mnY *= rTup.mnY; return *this; } B2I64Tuple& operator*=(sal_Int64 t) { mnX *= t; mnY *= t; return *this; } B2I64Tuple& operator/=(sal_Int64 t) { mnX /= t; mnY /= t; return *this; } B2I64Tuple operator-(void) const { return B2I64Tuple(-mnX, -mnY); } bool equalZero() const { return mnX == 0 && mnY == 0; } bool operator==( const B2I64Tuple& rTup ) const { return this == &rTup || (rTup.mnX == mnX && rTup.mnY == mnY); } bool operator!=( const B2I64Tuple& rTup ) const { return !(*this == rTup); } B2I64Tuple& operator=( const B2I64Tuple& rTup ) { mnX = rTup.mnX; mnY = rTup.mnY; return *this; } static const B2I64Tuple& getEmptyTuple(); }; // external operators ////////////////////////////////////////////////////////////////////////// inline B2I64Tuple minimum(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB) { return B2I64Tuple( std::min(rTupB.getX(), rTupA.getX()), std::min(rTupB.getY(), rTupA.getY())); } inline B2I64Tuple maximum(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB) { return B2I64Tuple( std::max(rTupB.getX(), rTupA.getX()), std::max(rTupB.getY(), rTupA.getY())); } inline B2I64Tuple absolute(const B2I64Tuple& rTup) { B2I64Tuple aAbs( (0 > rTup.getX()) ? -rTup.getX() : rTup.getX(), (0 > rTup.getY()) ? -rTup.getY() : rTup.getY()); return aAbs; } inline B2I64Tuple interpolate(const B2I64Tuple& rOld1, const B2I64Tuple& rOld2, double t) { if(rOld1 == rOld2) { return rOld1; } else if(0.0 >= t) { return rOld1; } else if(1.0 <= t) { return rOld2; } else { return B2I64Tuple( basegfx::fround64(((rOld2.getX() - rOld1.getX()) * t) + rOld1.getX()), basegfx::fround64(((rOld2.getY() - rOld1.getY()) * t) + rOld1.getY())); } } inline B2I64Tuple average(const B2I64Tuple& rOld1, const B2I64Tuple& rOld2) { return B2I64Tuple( rOld1.getX() == rOld2.getX() ? rOld1.getX() : basegfx::fround64((rOld1.getX() + rOld2.getX()) * 0.5), rOld1.getY() == rOld2.getY() ? rOld1.getY() : basegfx::fround64((rOld1.getY() + rOld2.getY()) * 0.5)); } inline B2I64Tuple average(const B2I64Tuple& rOld1, const B2I64Tuple& rOld2, const B2I64Tuple& rOld3) { return B2I64Tuple( (rOld1.getX() == rOld2.getX() && rOld2.getX() == rOld3.getX()) ? rOld1.getX() : basegfx::fround64((rOld1.getX() + rOld2.getX() + rOld3.getX()) * (1.0 / 3.0)), (rOld1.getY() == rOld2.getY() && rOld2.getY() == rOld3.getY()) ? rOld1.getY() : basegfx::fround64((rOld1.getY() + rOld2.getY() + rOld3.getY()) * (1.0 / 3.0))); } inline B2I64Tuple operator+(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB) { B2I64Tuple aSum(rTupA); aSum += rTupB; return aSum; } inline B2I64Tuple operator-(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB) { B2I64Tuple aSub(rTupA); aSub -= rTupB; return aSub; } inline B2I64Tuple operator/(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB) { B2I64Tuple aDiv(rTupA); aDiv /= rTupB; return aDiv; } inline B2I64Tuple operator*(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB) { B2I64Tuple aMul(rTupA); aMul *= rTupB; return aMul; } inline B2I64Tuple operator*(const B2I64Tuple& rTup, sal_Int64 t) { B2I64Tuple aNew(rTup); aNew *= t; return aNew; } inline B2I64Tuple operator*(sal_Int64 t, const B2I64Tuple& rTup) { B2I64Tuple aNew(rTup); aNew *= t; return aNew; } inline B2I64Tuple operator/(const B2I64Tuple& rTup, sal_Int64 t) { B2I64Tuple aNew(rTup); aNew /= t; return aNew; } inline B2I64Tuple operator/(sal_Int64 t, const B2I64Tuple& rTup) { B2I64Tuple aNew(t, t); B2I64Tuple aTmp(rTup); aNew /= aTmp; return aNew; } } // end of namespace basegfx #endif /* _BGFX_TUPLE_B2I64TUPLE_HXX */