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22 
23 
24 #ifndef _BGFX_TUPLE_B2I64TUPLE_HXX
25 #define _BGFX_TUPLE_B2I64TUPLE_HXX
26 
27 #include <sal/types.h>
28 #include <basegfx/tuple/b2dtuple.hxx>
29 
30 
31 namespace basegfx
32 {
33 	/** Base class for all Points/Vectors with two sal_Int64 values
34 
35 		This class provides all methods common to Point
36 		avd Vector classes which are derived from here.
37 
38 		@derive Use this class to implement Points or Vectors
39 		which are based on two sal_Int64 values
40 	*/
41 	class B2I64Tuple
42 	{
43 	protected:
44 		sal_Int64										mnX;
45 		sal_Int64										mnY;
46 
47 	public:
48 		/**	Create a 2D Tuple
49 
50         	The tuple is initialized to (0, 0)
51 		*/
B2I64Tuple()52 		B2I64Tuple()
53 		:	mnX(0),
54 			mnY(0)
55 		{}
56 
57 		/**	Create a 2D Tuple
58 
59 			@param fX
60 			This parameter is used to initialize the X-coordinate
61 			of the 2D Tuple.
62 
63 			@param fY
64 			This parameter is used to initialize the Y-coordinate
65 			of the 2D Tuple.
66 		*/
B2I64Tuple(sal_Int64 fX,sal_Int64 fY)67 		B2I64Tuple(sal_Int64 fX, sal_Int64 fY)
68 		:	mnX( fX ),
69 			mnY( fY )
70 		{}
71 
72 		/**	Create a copy of a 2D Tuple
73 
74 			@param rTup
75 			The 2D Tuple which will be copied.
76 		*/
B2I64Tuple(const B2I64Tuple & rTup)77 		B2I64Tuple(const B2I64Tuple& rTup)
78 		:	mnX( rTup.mnX ),
79 			mnY( rTup.mnY )
80 		{}
81 
~B2I64Tuple()82 		~B2I64Tuple()
83 		{}
84 
85 		/// Get X-Coordinate of 2D Tuple
getX() const86 		sal_Int64 getX() const
87 		{
88 			return mnX;
89 		}
90 
91 		/// Get Y-Coordinate of 2D Tuple
getY() const92 		sal_Int64 getY() const
93 		{
94 			return mnY;
95 		}
96 
97 		/// Set X-Coordinate of 2D Tuple
setX(sal_Int64 fX)98 		void setX(sal_Int64 fX)
99 		{
100 			mnX = fX;
101 		}
102 
103 		/// Set Y-Coordinate of 2D Tuple
setY(sal_Int64 fY)104 		void setY(sal_Int64 fY)
105 		{
106 			mnY = fY;
107 		}
108 
109 		/// Array-access to 2D Tuple
operator [](int nPos) const110 		const sal_Int64& operator[] (int nPos) const
111 		{
112 			// Here, normally one if(...) should be used. In the assumption that
113 			// both sal_Int64 members can be accessed as an array a shortcut is used here.
114 			// if(0 == nPos) return mnX; return mnY;
115 			return *((&mnX) + nPos);
116 		}
117 
118 		/// Array-access to 2D Tuple
operator [](int nPos)119 		sal_Int64& operator[] (int nPos)
120 		{
121 			// Here, normally one if(...) should be used. In the assumption that
122 			// both sal_Int64 members can be accessed as an array a shortcut is used here.
123 			// if(0 == nPos) return mnX; return mnY;
124 			return *((&mnX) + nPos);
125 		}
126 
127 		// operators
128 		//////////////////////////////////////////////////////////////////////
129 
operator +=(const B2I64Tuple & rTup)130 		B2I64Tuple& operator+=( const B2I64Tuple& rTup )
131 		{
132 			mnX += rTup.mnX;
133 			mnY += rTup.mnY;
134 			return *this;
135 		}
136 
operator -=(const B2I64Tuple & rTup)137 		B2I64Tuple& operator-=( const B2I64Tuple& rTup )
138 		{
139 			mnX -= rTup.mnX;
140 			mnY -= rTup.mnY;
141 			return *this;
142 		}
143 
operator /=(const B2I64Tuple & rTup)144 		B2I64Tuple& operator/=( const B2I64Tuple& rTup )
145 		{
146 			mnX /= rTup.mnX;
147 			mnY /= rTup.mnY;
148 			return *this;
149 		}
150 
operator *=(const B2I64Tuple & rTup)151 		B2I64Tuple& operator*=( const B2I64Tuple& rTup )
152 		{
153 			mnX *= rTup.mnX;
154 			mnY *= rTup.mnY;
155 			return *this;
156 		}
157 
operator *=(sal_Int64 t)158 		B2I64Tuple& operator*=(sal_Int64 t)
159 		{
160 			mnX *= t;
161 			mnY *= t;
162 			return *this;
163 		}
164 
operator /=(sal_Int64 t)165 		B2I64Tuple& operator/=(sal_Int64 t)
166 		{
167 			mnX /= t;
168 			mnY /= t;
169 			return *this;
170 		}
171 
operator -(void) const172 		B2I64Tuple operator-(void) const
173 		{
174 			return B2I64Tuple(-mnX, -mnY);
175 		}
176 
equalZero() const177 		bool equalZero() const { return mnX == 0 && mnY == 0; }
178 
operator ==(const B2I64Tuple & rTup) const179 		bool operator==( const B2I64Tuple& rTup ) const
180 		{
181 			return this == &rTup || (rTup.mnX == mnX && rTup.mnY == mnY);
182 		}
183 
operator !=(const B2I64Tuple & rTup) const184 		bool operator!=( const B2I64Tuple& rTup ) const
185 		{
186 			return !(*this == rTup);
187 		}
188 
operator =(const B2I64Tuple & rTup)189 		B2I64Tuple& operator=( const B2I64Tuple& rTup )
190 		{
191 			mnX = rTup.mnX;
192 			mnY = rTup.mnY;
193 			return *this;
194 		}
195 
196 		static const B2I64Tuple& getEmptyTuple();
197 	};
198 
199 	// external operators
200 	//////////////////////////////////////////////////////////////////////////
201 
minimum(const B2I64Tuple & rTupA,const B2I64Tuple & rTupB)202 	inline B2I64Tuple minimum(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB)
203 	{
204         return B2I64Tuple(
205             std::min(rTupB.getX(), rTupA.getX()),
206             std::min(rTupB.getY(), rTupA.getY()));
207 	}
208 
maximum(const B2I64Tuple & rTupA,const B2I64Tuple & rTupB)209 	inline B2I64Tuple maximum(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB)
210 	{
211         return B2I64Tuple(
212             std::max(rTupB.getX(), rTupA.getX()),
213             std::max(rTupB.getY(), rTupA.getY()));
214 	}
215 
absolute(const B2I64Tuple & rTup)216 	inline B2I64Tuple absolute(const B2I64Tuple& rTup)
217 	{
218 		B2I64Tuple aAbs(
219 			(0 > rTup.getX()) ? -rTup.getX() : rTup.getX(),
220 			(0 > rTup.getY()) ? -rTup.getY() : rTup.getY());
221 		return aAbs;
222 	}
223 
interpolate(const B2I64Tuple & rOld1,const B2I64Tuple & rOld2,double t)224 	inline B2I64Tuple interpolate(const B2I64Tuple& rOld1, const B2I64Tuple& rOld2, double t)
225 	{
226         if(rOld1 == rOld2)
227         {
228             return rOld1;
229         }
230         else if(0.0 >= t)
231         {
232             return rOld1;
233         }
234         else if(1.0 <= t)
235         {
236             return rOld2;
237         }
238         else
239         {
240             return B2I64Tuple(
241 			    basegfx::fround64(((rOld2.getX() - rOld1.getX()) * t) + rOld1.getX()),
242 			    basegfx::fround64(((rOld2.getY() - rOld1.getY()) * t) + rOld1.getY()));
243         }
244 	}
245 
average(const B2I64Tuple & rOld1,const B2I64Tuple & rOld2)246 	inline B2I64Tuple average(const B2I64Tuple& rOld1, const B2I64Tuple& rOld2)
247 	{
248         return B2I64Tuple(
249             rOld1.getX() == rOld2.getX() ? rOld1.getX() : basegfx::fround64((rOld1.getX() + rOld2.getX()) * 0.5),
250             rOld1.getY() == rOld2.getY() ? rOld1.getY() : basegfx::fround64((rOld1.getY() + rOld2.getY()) * 0.5));
251 	}
252 
average(const B2I64Tuple & rOld1,const B2I64Tuple & rOld2,const B2I64Tuple & rOld3)253 	inline B2I64Tuple average(const B2I64Tuple& rOld1, const B2I64Tuple& rOld2, const B2I64Tuple& rOld3)
254 	{
255         return B2I64Tuple(
256             (rOld1.getX() == rOld2.getX() && rOld2.getX() == rOld3.getX()) ? rOld1.getX() : basegfx::fround64((rOld1.getX() + rOld2.getX() + rOld3.getX()) * (1.0 / 3.0)),
257             (rOld1.getY() == rOld2.getY() && rOld2.getY() == rOld3.getY()) ? rOld1.getY() : basegfx::fround64((rOld1.getY() + rOld2.getY() + rOld3.getY()) * (1.0 / 3.0)));
258 	}
259 
operator +(const B2I64Tuple & rTupA,const B2I64Tuple & rTupB)260 	inline B2I64Tuple operator+(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB)
261 	{
262 		B2I64Tuple aSum(rTupA);
263 		aSum += rTupB;
264 		return aSum;
265 	}
266 
operator -(const B2I64Tuple & rTupA,const B2I64Tuple & rTupB)267 	inline B2I64Tuple operator-(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB)
268 	{
269 		B2I64Tuple aSub(rTupA);
270 		aSub -= rTupB;
271 		return aSub;
272 	}
273 
operator /(const B2I64Tuple & rTupA,const B2I64Tuple & rTupB)274 	inline B2I64Tuple operator/(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB)
275 	{
276 		B2I64Tuple aDiv(rTupA);
277 		aDiv /= rTupB;
278 		return aDiv;
279 	}
280 
operator *(const B2I64Tuple & rTupA,const B2I64Tuple & rTupB)281 	inline B2I64Tuple operator*(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB)
282 	{
283 		B2I64Tuple aMul(rTupA);
284 		aMul *= rTupB;
285 		return aMul;
286 	}
287 
operator *(const B2I64Tuple & rTup,sal_Int64 t)288 	inline B2I64Tuple operator*(const B2I64Tuple& rTup, sal_Int64 t)
289 	{
290 		B2I64Tuple aNew(rTup);
291 		aNew *= t;
292 		return aNew;
293 	}
294 
operator *(sal_Int64 t,const B2I64Tuple & rTup)295 	inline B2I64Tuple operator*(sal_Int64 t, const B2I64Tuple& rTup)
296 	{
297 		B2I64Tuple aNew(rTup);
298 		aNew *= t;
299 		return aNew;
300 	}
301 
operator /(const B2I64Tuple & rTup,sal_Int64 t)302 	inline B2I64Tuple operator/(const B2I64Tuple& rTup, sal_Int64 t)
303 	{
304 		B2I64Tuple aNew(rTup);
305 		aNew /= t;
306 		return aNew;
307 	}
308 
operator /(sal_Int64 t,const B2I64Tuple & rTup)309 	inline B2I64Tuple operator/(sal_Int64 t, const B2I64Tuple& rTup)
310 	{
311 		B2I64Tuple aNew(t, t);
312 		B2I64Tuple aTmp(rTup);
313 		aNew /= aTmp;
314 		return aNew;
315 	}
316 } // end of namespace basegfx
317 
318 #endif /* _BGFX_TUPLE_B2I64TUPLE_HXX */
319