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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #ifndef INCLUDED_BASEGFX_TUPLE_B3ITUPLE_HXX
21 : #define INCLUDED_BASEGFX_TUPLE_B3ITUPLE_HXX
22 :
23 : #include <sal/types.h>
24 : #include <basegfx/tuple/b3dtuple.hxx>
25 : #include <basegfx/basegfxdllapi.h>
26 :
27 : namespace basegfx
28 : {
29 : /** Base class for all Points/Vectors with three sal_Int32 values
30 :
31 : This class provides all methods common to Point
32 : avd Vector classes which are derived from here.
33 :
34 : @derive Use this class to implement Points or Vectors
35 : which are based on three sal_Int32 values
36 : */
37 : class BASEGFX_DLLPUBLIC SAL_WARN_UNUSED B3ITuple
38 : {
39 : protected:
40 : sal_Int32 mnX;
41 : sal_Int32 mnY;
42 : sal_Int32 mnZ;
43 :
44 : public:
45 : /** Create a 3D Tuple
46 :
47 : The tuple is initialized to (0, 0, 0)
48 : */
49 : B3ITuple()
50 : : mnX(0),
51 : mnY(0),
52 : mnZ(0)
53 : {}
54 :
55 : /** Create a 3D Tuple
56 :
57 : @param nX
58 : This parameter is used to initialize the X-coordinate
59 : of the 3D Tuple.
60 :
61 : @param nY
62 : This parameter is used to initialize the Y-coordinate
63 : of the 3D Tuple.
64 :
65 : @param nZ
66 : This parameter is used to initialize the Z-coordinate
67 : of the 3D Tuple.
68 : */
69 0 : B3ITuple(sal_Int32 nX, sal_Int32 nY, sal_Int32 nZ)
70 : : mnX(nX),
71 : mnY(nY),
72 0 : mnZ(nZ)
73 0 : {}
74 :
75 : /** Create a copy of a 3D Tuple
76 :
77 : @param rTup
78 : The 3D Tuple which will be copied.
79 : */
80 : B3ITuple(const B3ITuple& rTup)
81 : : mnX( rTup.mnX ),
82 : mnY( rTup.mnY ),
83 : mnZ( rTup.mnZ )
84 : {}
85 :
86 0 : ~B3ITuple()
87 0 : {}
88 :
89 : /// get X-Coordinate of 3D Tuple
90 0 : sal_Int32 getX() const
91 : {
92 0 : return mnX;
93 : }
94 :
95 : /// get Y-Coordinate of 3D Tuple
96 0 : sal_Int32 getY() const
97 : {
98 0 : return mnY;
99 : }
100 :
101 : /// get Z-Coordinate of 3D Tuple
102 : sal_Int32 getZ() const
103 : {
104 : return mnZ;
105 : }
106 :
107 : /// set X-Coordinate of 3D Tuple
108 : void setX(sal_Int32 nX)
109 : {
110 : mnX = nX;
111 : }
112 :
113 : /// set Y-Coordinate of 3D Tuple
114 : void setY(sal_Int32 nY)
115 : {
116 : mnY = nY;
117 : }
118 :
119 : /// set Z-Coordinate of 3D Tuple
120 : void setZ(sal_Int32 nZ)
121 : {
122 : mnZ = nZ;
123 : }
124 :
125 : /// Array-access to 3D Tuple
126 : const sal_Int32& operator[] (int nPos) const
127 : {
128 : // Here, normally two if(...)'s should be used. In the assumption that
129 : // both sal_Int32 members can be accessed as an array a shortcut is used here.
130 : // if(0 == nPos) return mnX; if(1 == nPos) return mnY; return mnZ;
131 : return *((&mnX) + nPos);
132 : }
133 :
134 : /// Array-access to 3D Tuple
135 : sal_Int32& operator[] (int nPos)
136 : {
137 : // Here, normally two if(...)'s should be used. In the assumption that
138 : // both sal_Int32 members can be accessed as an array a shortcut is used here.
139 : // if(0 == nPos) return mnX; if(1 == nPos) return mnY; return mnZ;
140 : return *((&mnX) + nPos);
141 : }
142 :
143 : // operators
144 :
145 :
146 : B3ITuple& operator+=( const B3ITuple& rTup )
147 : {
148 : mnX += rTup.mnX;
149 : mnY += rTup.mnY;
150 : mnZ += rTup.mnZ;
151 : return *this;
152 : }
153 :
154 : B3ITuple& operator-=( const B3ITuple& rTup )
155 : {
156 : mnX -= rTup.mnX;
157 : mnY -= rTup.mnY;
158 : mnZ -= rTup.mnZ;
159 : return *this;
160 : }
161 :
162 : B3ITuple& operator/=( const B3ITuple& rTup )
163 : {
164 : mnX /= rTup.mnX;
165 : mnY /= rTup.mnY;
166 : mnZ /= rTup.mnZ;
167 : return *this;
168 : }
169 :
170 : B3ITuple& operator*=( const B3ITuple& rTup )
171 : {
172 : mnX *= rTup.mnX;
173 : mnY *= rTup.mnY;
174 : mnZ *= rTup.mnZ;
175 : return *this;
176 : }
177 :
178 : B3ITuple& operator*=(sal_Int32 t)
179 : {
180 : mnX *= t;
181 : mnY *= t;
182 : mnZ *= t;
183 : return *this;
184 : }
185 :
186 : B3ITuple& operator/=(sal_Int32 t)
187 : {
188 : mnX /= t;
189 : mnY /= t;
190 : mnZ /= t;
191 : return *this;
192 : }
193 :
194 : B3ITuple operator-(void) const
195 : {
196 : return B3ITuple(-mnX, -mnY, -mnZ);
197 : }
198 :
199 : bool operator==( const B3ITuple& rTup ) const
200 : {
201 : return this == &rTup || (rTup.mnX == mnX && rTup.mnY == mnY && rTup.mnZ == mnZ);
202 : }
203 :
204 : bool operator!=( const B3ITuple& rTup ) const
205 : {
206 : return !(*this == rTup);
207 : }
208 :
209 0 : B3ITuple& operator=( const B3ITuple& rTup )
210 : {
211 0 : mnX = rTup.mnX;
212 0 : mnY = rTup.mnY;
213 0 : mnZ = rTup.mnZ;
214 0 : return *this;
215 : }
216 : };
217 :
218 : // external operators
219 :
220 :
221 : inline B3ITuple minimum(const B3ITuple& rTupA, const B3ITuple& rTupB)
222 : {
223 : return B3ITuple(
224 : std::min(rTupB.getX(), rTupA.getX()),
225 : std::min(rTupB.getY(), rTupA.getY()),
226 : std::min(rTupB.getZ(), rTupA.getZ()));
227 : }
228 :
229 : inline B3ITuple maximum(const B3ITuple& rTupA, const B3ITuple& rTupB)
230 : {
231 : return B3ITuple(
232 : std::max(rTupB.getX(), rTupA.getX()),
233 : std::max(rTupB.getY(), rTupA.getY()),
234 : std::max(rTupB.getZ(), rTupA.getZ()));
235 : }
236 :
237 : inline B3ITuple absolute(const B3ITuple& rTup)
238 : {
239 : B3ITuple aAbs(
240 : (0 > rTup.getX()) ? -rTup.getX() : rTup.getX(),
241 : (0 > rTup.getY()) ? -rTup.getY() : rTup.getY(),
242 : (0 > rTup.getZ()) ? -rTup.getZ() : rTup.getZ());
243 : return aAbs;
244 : }
245 :
246 : inline B3ITuple interpolate(const B3ITuple& rOld1, const B3ITuple& rOld2, double t)
247 : {
248 : if(rOld1 == rOld2)
249 : {
250 : return rOld1;
251 : }
252 : else if(0.0 >= t)
253 : {
254 : return rOld1;
255 : }
256 : else if(1.0 <= t)
257 : {
258 : return rOld2;
259 : }
260 : else
261 : {
262 : return B3ITuple(
263 : basegfx::fround(((rOld2.getX() - rOld1.getX()) * t) + rOld1.getX()),
264 : basegfx::fround(((rOld2.getY() - rOld1.getY()) * t) + rOld1.getY()),
265 : basegfx::fround(((rOld2.getZ() - rOld1.getZ()) * t) + rOld1.getZ()));
266 : }
267 : }
268 :
269 : inline B3ITuple average(const B3ITuple& rOld1, const B3ITuple& rOld2)
270 : {
271 : return B3ITuple(
272 : rOld1.getX() == rOld2.getX() ? rOld1.getX() : basegfx::fround((rOld1.getX() + rOld2.getX()) * 0.5),
273 : rOld1.getY() == rOld2.getY() ? rOld1.getY() : basegfx::fround((rOld1.getY() + rOld2.getY()) * 0.5),
274 : rOld1.getZ() == rOld2.getZ() ? rOld1.getZ() : basegfx::fround((rOld1.getZ() + rOld2.getZ()) * 0.5));
275 : }
276 :
277 : inline B3ITuple average(const B3ITuple& rOld1, const B3ITuple& rOld2, const B3ITuple& rOld3)
278 : {
279 : return B3ITuple(
280 : (rOld1.getX() == rOld2.getX() && rOld2.getX() == rOld3.getX()) ? rOld1.getX() : basegfx::fround((rOld1.getX() + rOld2.getX() + rOld3.getX()) * (1.0 / 3.0)),
281 : (rOld1.getY() == rOld2.getY() && rOld2.getY() == rOld3.getY()) ? rOld1.getX() : basegfx::fround((rOld1.getY() + rOld2.getY() + rOld3.getY()) * (1.0 / 3.0)),
282 : (rOld1.getZ() == rOld2.getZ() && rOld2.getZ() == rOld3.getZ()) ? rOld1.getX() : basegfx::fround((rOld1.getZ() + rOld2.getZ() + rOld3.getZ()) * (1.0 / 3.0)));
283 : }
284 :
285 : inline B3ITuple operator+(const B3ITuple& rTupA, const B3ITuple& rTupB)
286 : {
287 : B3ITuple aSum(rTupA);
288 : aSum += rTupB;
289 : return aSum;
290 : }
291 :
292 : inline B3ITuple operator-(const B3ITuple& rTupA, const B3ITuple& rTupB)
293 : {
294 : B3ITuple aSub(rTupA);
295 : aSub -= rTupB;
296 : return aSub;
297 : }
298 :
299 : inline B3ITuple operator/(const B3ITuple& rTupA, const B3ITuple& rTupB)
300 : {
301 : B3ITuple aDiv(rTupA);
302 : aDiv /= rTupB;
303 : return aDiv;
304 : }
305 :
306 : inline B3ITuple operator*(const B3ITuple& rTupA, const B3ITuple& rTupB)
307 : {
308 : B3ITuple aMul(rTupA);
309 : aMul *= rTupB;
310 : return aMul;
311 : }
312 :
313 : inline B3ITuple operator*(const B3ITuple& rTup, sal_Int32 t)
314 : {
315 : B3ITuple aNew(rTup);
316 : aNew *= t;
317 : return aNew;
318 : }
319 :
320 : inline B3ITuple operator*(sal_Int32 t, const B3ITuple& rTup)
321 : {
322 : B3ITuple aNew(rTup);
323 : aNew *= t;
324 : return aNew;
325 : }
326 :
327 : inline B3ITuple operator/(const B3ITuple& rTup, sal_Int32 t)
328 : {
329 : B3ITuple aNew(rTup);
330 : aNew /= t;
331 : return aNew;
332 : }
333 :
334 : inline B3ITuple operator/(sal_Int32 t, const B3ITuple& rTup)
335 : {
336 : B3ITuple aNew(t, t, t);
337 : B3ITuple aTmp(rTup);
338 : aNew /= aTmp;
339 : return aNew;
340 : }
341 : } // end of namespace basegfx
342 :
343 : #endif // INCLUDED_BASEGFX_TUPLE_B3ITUPLE_HXX
344 :
345 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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