1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 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 #include <basegfx/basegfxdllapi.h> 30 31 32 namespace basegfx 33 { 34 /** Base class for all Points/Vectors with two sal_Int64 values 35 36 This class provides all methods common to Point 37 avd Vector classes which are derived from here. 38 39 @derive Use this class to implement Points or Vectors 40 which are based on two sal_Int64 values 41 */ 42 class BASEGFX_DLLPUBLIC B2I64Tuple 43 { 44 protected: 45 sal_Int64 mnX; 46 sal_Int64 mnY; 47 48 public: 49 /** Create a 2D Tuple 50 51 The tuple is initialized to (0, 0) 52 */ B2I64Tuple()53 B2I64Tuple() 54 : mnX(0), 55 mnY(0) 56 {} 57 58 /** Create a 2D Tuple 59 60 @param fX 61 This parameter is used to initialize the X-coordinate 62 of the 2D Tuple. 63 64 @param fY 65 This parameter is used to initialize the Y-coordinate 66 of the 2D Tuple. 67 */ B2I64Tuple(sal_Int64 fX,sal_Int64 fY)68 B2I64Tuple(sal_Int64 fX, sal_Int64 fY) 69 : mnX( fX ), 70 mnY( fY ) 71 {} 72 73 /** Create a copy of a 2D Tuple 74 75 @param rTup 76 The 2D Tuple which will be copied. 77 */ B2I64Tuple(const B2I64Tuple & rTup)78 B2I64Tuple(const B2I64Tuple& rTup) 79 : mnX( rTup.mnX ), 80 mnY( rTup.mnY ) 81 {} 82 ~B2I64Tuple()83 ~B2I64Tuple() 84 {} 85 86 /// Get X-Coordinate of 2D Tuple getX() const87 sal_Int64 getX() const 88 { 89 return mnX; 90 } 91 92 /// Get Y-Coordinate of 2D Tuple getY() const93 sal_Int64 getY() const 94 { 95 return mnY; 96 } 97 98 /// Set X-Coordinate of 2D Tuple setX(sal_Int64 fX)99 void setX(sal_Int64 fX) 100 { 101 mnX = fX; 102 } 103 104 /// Set Y-Coordinate of 2D Tuple setY(sal_Int64 fY)105 void setY(sal_Int64 fY) 106 { 107 mnY = fY; 108 } 109 110 /// Array-access to 2D Tuple operator [](int nPos) const111 const sal_Int64& operator[] (int nPos) const 112 { 113 // Here, normally one if(...) should be used. In the assumption that 114 // both sal_Int64 members can be accessed as an array a shortcut is used here. 115 // if(0 == nPos) return mnX; return mnY; 116 return *((&mnX) + nPos); 117 } 118 119 /// Array-access to 2D Tuple operator [](int nPos)120 sal_Int64& operator[] (int nPos) 121 { 122 // Here, normally one if(...) should be used. In the assumption that 123 // both sal_Int64 members can be accessed as an array a shortcut is used here. 124 // if(0 == nPos) return mnX; return mnY; 125 return *((&mnX) + nPos); 126 } 127 128 // operators 129 ////////////////////////////////////////////////////////////////////// 130 operator +=(const B2I64Tuple & rTup)131 B2I64Tuple& operator+=( const B2I64Tuple& rTup ) 132 { 133 mnX += rTup.mnX; 134 mnY += rTup.mnY; 135 return *this; 136 } 137 operator -=(const B2I64Tuple & rTup)138 B2I64Tuple& operator-=( const B2I64Tuple& rTup ) 139 { 140 mnX -= rTup.mnX; 141 mnY -= rTup.mnY; 142 return *this; 143 } 144 operator /=(const B2I64Tuple & rTup)145 B2I64Tuple& operator/=( const B2I64Tuple& rTup ) 146 { 147 mnX /= rTup.mnX; 148 mnY /= rTup.mnY; 149 return *this; 150 } 151 operator *=(const B2I64Tuple & rTup)152 B2I64Tuple& operator*=( const B2I64Tuple& rTup ) 153 { 154 mnX *= rTup.mnX; 155 mnY *= rTup.mnY; 156 return *this; 157 } 158 operator *=(sal_Int64 t)159 B2I64Tuple& operator*=(sal_Int64 t) 160 { 161 mnX *= t; 162 mnY *= t; 163 return *this; 164 } 165 operator /=(sal_Int64 t)166 B2I64Tuple& operator/=(sal_Int64 t) 167 { 168 mnX /= t; 169 mnY /= t; 170 return *this; 171 } 172 operator -(void) const173 B2I64Tuple operator-(void) const 174 { 175 return B2I64Tuple(-mnX, -mnY); 176 } 177 equalZero() const178 bool equalZero() const { return mnX == 0 && mnY == 0; } 179 operator ==(const B2I64Tuple & rTup) const180 bool operator==( const B2I64Tuple& rTup ) const 181 { 182 return this == &rTup || (rTup.mnX == mnX && rTup.mnY == mnY); 183 } 184 operator !=(const B2I64Tuple & rTup) const185 bool operator!=( const B2I64Tuple& rTup ) const 186 { 187 return !(*this == rTup); 188 } 189 operator =(const B2I64Tuple & rTup)190 B2I64Tuple& operator=( const B2I64Tuple& rTup ) 191 { 192 mnX = rTup.mnX; 193 mnY = rTup.mnY; 194 return *this; 195 } 196 197 static const B2I64Tuple& getEmptyTuple(); 198 }; 199 200 // external operators 201 ////////////////////////////////////////////////////////////////////////// 202 minimum(const B2I64Tuple & rTupA,const B2I64Tuple & rTupB)203 inline B2I64Tuple minimum(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB) 204 { 205 return B2I64Tuple( 206 std::min(rTupB.getX(), rTupA.getX()), 207 std::min(rTupB.getY(), rTupA.getY())); 208 } 209 maximum(const B2I64Tuple & rTupA,const B2I64Tuple & rTupB)210 inline B2I64Tuple maximum(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB) 211 { 212 return B2I64Tuple( 213 std::max(rTupB.getX(), rTupA.getX()), 214 std::max(rTupB.getY(), rTupA.getY())); 215 } 216 absolute(const B2I64Tuple & rTup)217 inline B2I64Tuple absolute(const B2I64Tuple& rTup) 218 { 219 B2I64Tuple aAbs( 220 (0 > rTup.getX()) ? -rTup.getX() : rTup.getX(), 221 (0 > rTup.getY()) ? -rTup.getY() : rTup.getY()); 222 return aAbs; 223 } 224 interpolate(const B2I64Tuple & rOld1,const B2I64Tuple & rOld2,double t)225 inline B2I64Tuple interpolate(const B2I64Tuple& rOld1, const B2I64Tuple& rOld2, double t) 226 { 227 if(rOld1 == rOld2) 228 { 229 return rOld1; 230 } 231 else if(0.0 >= t) 232 { 233 return rOld1; 234 } 235 else if(1.0 <= t) 236 { 237 return rOld2; 238 } 239 else 240 { 241 return B2I64Tuple( 242 basegfx::fround64(((rOld2.getX() - rOld1.getX()) * t) + rOld1.getX()), 243 basegfx::fround64(((rOld2.getY() - rOld1.getY()) * t) + rOld1.getY())); 244 } 245 } 246 average(const B2I64Tuple & rOld1,const B2I64Tuple & rOld2)247 inline B2I64Tuple average(const B2I64Tuple& rOld1, const B2I64Tuple& rOld2) 248 { 249 return B2I64Tuple( 250 rOld1.getX() == rOld2.getX() ? rOld1.getX() : basegfx::fround64((rOld1.getX() + rOld2.getX()) * 0.5), 251 rOld1.getY() == rOld2.getY() ? rOld1.getY() : basegfx::fround64((rOld1.getY() + rOld2.getY()) * 0.5)); 252 } 253 average(const B2I64Tuple & rOld1,const B2I64Tuple & rOld2,const B2I64Tuple & rOld3)254 inline B2I64Tuple average(const B2I64Tuple& rOld1, const B2I64Tuple& rOld2, const B2I64Tuple& rOld3) 255 { 256 return B2I64Tuple( 257 (rOld1.getX() == rOld2.getX() && rOld2.getX() == rOld3.getX()) ? rOld1.getX() : basegfx::fround64((rOld1.getX() + rOld2.getX() + rOld3.getX()) * (1.0 / 3.0)), 258 (rOld1.getY() == rOld2.getY() && rOld2.getY() == rOld3.getY()) ? rOld1.getY() : basegfx::fround64((rOld1.getY() + rOld2.getY() + rOld3.getY()) * (1.0 / 3.0))); 259 } 260 operator +(const B2I64Tuple & rTupA,const B2I64Tuple & rTupB)261 inline B2I64Tuple operator+(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB) 262 { 263 B2I64Tuple aSum(rTupA); 264 aSum += rTupB; 265 return aSum; 266 } 267 operator -(const B2I64Tuple & rTupA,const B2I64Tuple & rTupB)268 inline B2I64Tuple operator-(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB) 269 { 270 B2I64Tuple aSub(rTupA); 271 aSub -= rTupB; 272 return aSub; 273 } 274 operator /(const B2I64Tuple & rTupA,const B2I64Tuple & rTupB)275 inline B2I64Tuple operator/(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB) 276 { 277 B2I64Tuple aDiv(rTupA); 278 aDiv /= rTupB; 279 return aDiv; 280 } 281 operator *(const B2I64Tuple & rTupA,const B2I64Tuple & rTupB)282 inline B2I64Tuple operator*(const B2I64Tuple& rTupA, const B2I64Tuple& rTupB) 283 { 284 B2I64Tuple aMul(rTupA); 285 aMul *= rTupB; 286 return aMul; 287 } 288 operator *(const B2I64Tuple & rTup,sal_Int64 t)289 inline B2I64Tuple operator*(const B2I64Tuple& rTup, sal_Int64 t) 290 { 291 B2I64Tuple aNew(rTup); 292 aNew *= t; 293 return aNew; 294 } 295 operator *(sal_Int64 t,const B2I64Tuple & rTup)296 inline B2I64Tuple operator*(sal_Int64 t, const B2I64Tuple& rTup) 297 { 298 B2I64Tuple aNew(rTup); 299 aNew *= t; 300 return aNew; 301 } 302 operator /(const B2I64Tuple & rTup,sal_Int64 t)303 inline B2I64Tuple operator/(const B2I64Tuple& rTup, sal_Int64 t) 304 { 305 B2I64Tuple aNew(rTup); 306 aNew /= t; 307 return aNew; 308 } 309 operator /(sal_Int64 t,const B2I64Tuple & rTup)310 inline B2I64Tuple operator/(sal_Int64 t, const B2I64Tuple& rTup) 311 { 312 B2I64Tuple aNew(t, t); 313 B2I64Tuple aTmp(rTup); 314 aNew /= aTmp; 315 return aNew; 316 } 317 } // end of namespace basegfx 318 319 #endif /* _BGFX_TUPLE_B2I64TUPLE_HXX */ 320