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_MATRIX_B2DHOMMATRIX_HXX 25 #define _BGFX_MATRIX_B2DHOMMATRIX_HXX 26 27 #include <sal/types.h> 28 #include <o3tl/cow_wrapper.hxx> 29 30 namespace basegfx 31 { 32 class B2DTuple; 33 class Impl2DHomMatrix; 34 35 class B2DHomMatrix 36 { 37 public: 38 typedef o3tl::cow_wrapper< Impl2DHomMatrix > ImplType; 39 40 private: 41 ImplType mpImpl; 42 43 public: 44 B2DHomMatrix(); 45 B2DHomMatrix(const B2DHomMatrix& rMat); 46 ~B2DHomMatrix(); 47 48 /** constructor to allow setting all needed values for a 3x2 matrix at once. The 49 parameter f_0x1 e.g. is the same as using set(0, 1, f) 50 */ 51 B2DHomMatrix(double f_0x0, double f_0x1, double f_0x2, double f_1x0, double f_1x1, double f_1x2); 52 53 /// unshare this matrix with all internally shared instances 54 void makeUnique(); 55 56 double get(sal_uInt16 nRow, sal_uInt16 nColumn) const; 57 void set(sal_uInt16 nRow, sal_uInt16 nColumn, double fValue); 58 59 /** allow setting all needed values for a 3x2 matrix in one call. The 60 parameter f_0x1 e.g. is the same as using set(0, 1, f) 61 */ 62 void set3x2(double f_0x0, double f_0x1, double f_0x2, double f_1x0, double f_1x1, double f_1x2); 63 64 // test if last line is default to see if last line needs to be 65 // involved in calculations 66 bool isLastLineDefault() const; 67 68 // Auf Einheitsmatrix zuruecksetzen 69 bool isIdentity() const; 70 void identity(); 71 72 // Invertierung 73 bool isInvertible() const; 74 bool invert(); 75 76 // Normalisierung 77 bool isNormalized() const; 78 void normalize(); 79 80 // Determinante 81 double determinant() const; 82 83 // Trace 84 double trace() const; 85 86 // Transpose 87 void transpose(); 88 89 // Rotation 90 void rotate(double fRadiant); 91 92 // Translation 93 void translate(double fX, double fY); 94 95 // Skalierung 96 void scale(double fX, double fY); 97 98 // Shearing-Matrices 99 void shearX(double fSx); 100 void shearY(double fSy); 101 102 // Addition, Subtraktion 103 B2DHomMatrix& operator+=(const B2DHomMatrix& rMat); 104 B2DHomMatrix& operator-=(const B2DHomMatrix& rMat); 105 106 // Vergleichsoperatoren 107 bool operator==(const B2DHomMatrix& rMat) const; 108 bool operator!=(const B2DHomMatrix& rMat) const; 109 110 // Multiplikation, Division mit Konstante 111 B2DHomMatrix& operator*=(double fValue); 112 B2DHomMatrix& operator/=(double fValue); 113 114 // Matritzenmultiplikation von links auf die lokale 115 B2DHomMatrix& operator*=(const B2DHomMatrix& rMat); 116 117 // assignment operator 118 B2DHomMatrix& operator=(const B2DHomMatrix& rMat); 119 120 // Help routine to decompose given homogen 3x3 matrix to components. A correction of 121 // the components is done to avoid inaccuracies. 122 // Zerlegung 123 bool decompose(B2DTuple& rScale, B2DTuple& rTranslate, double& rRotate, double& rShearX) const; 124 }; 125 126 // Addition, Subtraktion operator +(const B2DHomMatrix & rMatA,const B2DHomMatrix & rMatB)127 inline B2DHomMatrix operator+(const B2DHomMatrix& rMatA, const B2DHomMatrix& rMatB) 128 { 129 B2DHomMatrix aSum(rMatA); 130 aSum += rMatB; 131 return aSum; 132 } 133 operator -(const B2DHomMatrix & rMatA,const B2DHomMatrix & rMatB)134 inline B2DHomMatrix operator-(const B2DHomMatrix& rMatA, const B2DHomMatrix& rMatB) 135 { 136 B2DHomMatrix aDiv(rMatA); 137 aDiv -= rMatB; 138 return aDiv; 139 } 140 141 // Multiplikation, Division mit Konstante operator *(const B2DHomMatrix & rMat,double fValue)142 inline B2DHomMatrix operator*(const B2DHomMatrix& rMat, double fValue) 143 { 144 B2DHomMatrix aNew(rMat); 145 aNew *= fValue; 146 return aNew; 147 } 148 operator /(const B2DHomMatrix & rMat,double fValue)149 inline B2DHomMatrix operator/(const B2DHomMatrix& rMat, double fValue) 150 { 151 B2DHomMatrix aNew(rMat); 152 aNew *= 1.0 / fValue; 153 return aNew; 154 } 155 operator *(const B2DHomMatrix & rMatA,const B2DHomMatrix & rMatB)156 inline B2DHomMatrix operator*(const B2DHomMatrix& rMatA, const B2DHomMatrix& rMatB) 157 { 158 B2DHomMatrix aMul(rMatB); 159 aMul *= rMatA; 160 return aMul; 161 } 162 } // end of namespace basegfx 163 164 #endif /* _BGFX_MATRIX_B2DHOMMATRIX_HXX */ 165