Line data Source code
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_BASEBMP_COMPOSITEITERATOR_HXX
21 : #define INCLUDED_BASEBMP_COMPOSITEITERATOR_HXX
22 :
23 : #include <sal/types.h>
24 : #include <osl/diagnose.h>
25 :
26 : #include <basebmp/nonstandarditerator.hxx>
27 : #include <vigra/tuple.hxx>
28 : #include <vigra/iteratortraits.hxx>
29 :
30 :
31 : namespace basebmp
32 : {
33 :
34 : namespace detail
35 : {
36 : template< typename T1, typename T2 > class ArithmeticProxy
37 : {
38 : public:
39 1108904 : ArithmeticProxy(T1& val1, T2& val2) :
40 : mpVal1( &val1 ),
41 1108904 : mpVal2( &val2 )
42 1108904 : {}
43 :
44 5862373 : void operator++() { ++(*mpVal1); ++(*mpVal2); }
45 : void operator++(int) { (*mpVal1)++; (*mpVal2)++; }
46 : void operator--() { --(*mpVal1); --(*mpVal2); }
47 : void operator--(int) { (*mpVal1)--; (*mpVal2)--; }
48 21019 : void operator+=(int d) {*mpVal1+=d; *mpVal2+=d; }
49 : void operator-=(int d) {*mpVal1-=d; *mpVal2-=d; }
50 :
51 : bool operator==(ArithmeticProxy const & rhs) const
52 : { return *mpVal1==*rhs.mpVal1 && *mpVal2==*rhs.mpVal2; }
53 :
54 : bool operator!=(ArithmeticProxy const & rhs) const
55 : { return *mpVal1!=*rhs.mpVal1 || *mpVal2!=*rhs.mpVal2; }
56 :
57 620511 : bool operator<(ArithmeticProxy const & rhs) const
58 620511 : { return *mpVal1<*rhs.mpVal1 && *mpVal2<*rhs.mpVal2; }
59 :
60 : bool operator<=(ArithmeticProxy const & rhs) const
61 : { return *mpVal1<=*rhs.mpVal1 && *mpVal2<=*rhs.mpVal2; }
62 :
63 : bool operator>(ArithmeticProxy const & rhs) const
64 : { return *mpVal1>*rhs.mpVal1 && *mpVal2>*rhs.mpVal2; }
65 :
66 : bool operator>=(ArithmeticProxy const & rhs) const
67 : { return *mpVal1>=*rhs.mpVal1 && *mpVal2>=*rhs.mpVal2; }
68 :
69 38450 : int operator-(ArithmeticProxy const & rhs) const
70 38450 : { return *mpVal1 - *rhs.mpVal1; }
71 :
72 : private:
73 : T1* mpVal1;
74 : T2* mpVal2;
75 : };
76 :
77 : template< typename Iterator1,
78 : typename Iterator2,
79 : typename ValueType,
80 : typename DifferenceType,
81 : typename IteratorCategory,
82 : class Derived >
83 : class CompositeIteratorBase : public NonStandardIterator
84 : {
85 : public:
86 : typedef Iterator1 iterator1_type;
87 : typedef Iterator2 iterator2_type;
88 : typedef ValueType value_type;
89 : typedef DifferenceType difference_type;
90 : typedef IteratorCategory iterator_category;
91 :
92 0 : struct Impl
93 : {
94 : iterator1_type maIter1;
95 : iterator2_type maIter2;
96 : Impl()
97 : : maIter1()
98 : , maIter2()
99 : {
100 : }
101 1190814442 : Impl(const iterator1_type& rIter1, const iterator2_type& rIter2)
102 : : maIter1(rIter1)
103 1190814442 : , maIter2(rIter2)
104 : {
105 1190814442 : }
106 : };
107 :
108 : protected:
109 : Impl* pImpl;
110 :
111 : private:
112 1243453174 : bool equal(CompositeIteratorBase const & rhs) const
113 : {
114 1243453174 : return (pImpl->maIter1 == rhs.pImpl->maIter1) && (pImpl->maIter2 == rhs.pImpl->maIter2);
115 : }
116 :
117 : public:
118 : CompositeIteratorBase()
119 : {
120 : pImpl = new Impl();
121 : }
122 :
123 6714238 : CompositeIteratorBase(const iterator1_type& rIter1, const iterator2_type& rIter2)
124 6714238 : {
125 6714238 : pImpl = new Impl(rIter1, rIter2);
126 6714238 : }
127 :
128 1184100204 : CompositeIteratorBase(const CompositeIteratorBase& rOther)
129 1184100204 : {
130 1184100204 : pImpl = new Impl(rOther.pImpl->maIter1, rOther.pImpl->maIter2);
131 1184100204 : }
132 :
133 1190814442 : ~CompositeIteratorBase()
134 : {
135 1190814442 : delete pImpl;
136 1190814442 : }
137 :
138 0 : bool operator==(Derived const & rhs) const
139 : {
140 0 : return equal(rhs);
141 : }
142 :
143 1243453174 : bool operator!=(Derived const & rhs) const
144 : {
145 1243453174 : return !equal(rhs);
146 : }
147 :
148 4296 : difference_type operator-(Derived const & rhs) const
149 : {
150 : OSL_ASSERT(pImpl->maIter1 - rhs.pImpl->maIter1 == pImpl->maIter2 - rhs.pImpl->maIter2);
151 4296 : return pImpl->maIter1 - rhs.pImpl->maIter1;
152 : }
153 :
154 27218706 : Derived & operator+=(difference_type const & s)
155 : {
156 27218706 : pImpl->maIter1 += s;
157 27218706 : pImpl->maIter2 += s;
158 27218706 : return static_cast<Derived&>(*this);
159 : }
160 :
161 : Derived & operator-=(difference_type const & s)
162 : {
163 : pImpl->maIter1 -= s;
164 : pImpl->maIter2 -= s;
165 : return static_cast<Derived&>(*this);
166 : }
167 :
168 11242261 : Derived operator+(difference_type const & s) const
169 : {
170 11242261 : Derived ret(static_cast<Derived const&>(*this));
171 11242261 : ret += s;
172 11242261 : return ret;
173 : }
174 :
175 : Derived operator-(difference_type const & s) const
176 : {
177 : Derived ret(static_cast<Derived const&>(*this));
178 : ret -= s;
179 : return ret;
180 : }
181 :
182 72161388 : Derived& operator++()
183 : {
184 72161388 : ++pImpl->maIter1;
185 72161388 : ++pImpl->maIter2;
186 72161388 : return static_cast<Derived&>(*this);
187 : }
188 :
189 : Derived& operator--()
190 : {
191 : --pImpl->maIter1;
192 : --pImpl->maIter2;
193 : return static_cast<Derived&>(*this);
194 : }
195 :
196 1172622454 : Derived operator++(int)
197 : {
198 1172622454 : Derived ret(static_cast<Derived const&>(*this));
199 1172622454 : ++pImpl->maIter1;
200 1172622454 : ++pImpl->maIter2;
201 1172622454 : return ret;
202 : }
203 :
204 : Derived operator--(int)
205 : {
206 : Derived ret(static_cast<Derived const&>(*this));
207 : --pImpl->maIter1;
208 : --pImpl->maIter2;
209 : return ret;
210 : }
211 :
212 : value_type get() const
213 : {
214 : return value_type(pImpl->maIter1.get(),
215 : pImpl->maIter2.get());
216 : }
217 :
218 : value_type get(difference_type const & d) const
219 : {
220 : return value_type(pImpl->maIter1.get(d),
221 : pImpl->maIter2.get(d));
222 : }
223 :
224 : void set( value_type v ) const
225 : {
226 : pImpl->maIter1.set(v);
227 : pImpl->maIter2.set(v);
228 : }
229 :
230 : void set( value_type v, difference_type const & d ) const
231 : {
232 : pImpl->maIter1.set(v,d);
233 : pImpl->maIter2.set(v,d);
234 : }
235 :
236 21019 : CompositeIteratorBase& operator=(const CompositeIteratorBase& rNew)
237 : {
238 21019 : this->pImpl->maIter1 = rNew.pImpl->maIter1;
239 21019 : this->pImpl->maIter2 = rNew.pImpl->maIter2;
240 21019 : return *this;
241 : }
242 :
243 2457029629 : const iterator1_type& first() const { return pImpl->maIter1; }
244 : iterator1_type& first() { return pImpl->maIter1; }
245 :
246 1260951600 : const iterator2_type& second() const { return pImpl->maIter2; }
247 : iterator2_type& second() { return pImpl->maIter2; }
248 : };
249 : }
250 :
251 : /** Provide the composition of two 1D image iterators
252 :
253 : Use this template to compose two iterators into one (e.g. image
254 : and mask). Operations are transitive, e.g. operator== only returns
255 : true, if both wrapped iterator operator== have yielded true.
256 :
257 : Note that both iterators must have compatible difference types. To
258 : avoid funny effects, iterator ranges given by a CompositeIterator
259 : should consist of wrapped iterators of similar range
260 : */
261 : template< typename Iterator1,
262 : typename Iterator2,
263 : typename ValueType,
264 : typename DifferenceType,
265 : typename IteratorCategory >
266 2373995379 : class CompositeIterator1D :
267 : public detail::CompositeIteratorBase< Iterator1,
268 : Iterator2,
269 : ValueType,
270 : DifferenceType,
271 : IteratorCategory,
272 : CompositeIterator1D<Iterator1,
273 : Iterator2,
274 : ValueType,
275 : DifferenceType,
276 : IteratorCategory> >
277 : {
278 : typedef detail::CompositeIteratorBase< Iterator1,
279 : Iterator2,
280 : ValueType,
281 : DifferenceType,
282 : IteratorCategory,
283 : CompositeIterator1D<Iterator1,
284 : Iterator2,
285 : ValueType,
286 : DifferenceType,
287 : IteratorCategory> > base_type;
288 : public:
289 : CompositeIterator1D() :
290 : base_type()
291 : {}
292 :
293 6545620 : CompositeIterator1D( const Iterator1& rIter1,
294 : const Iterator2& rIter2 ) :
295 6545620 : base_type( rIter1, rIter2 )
296 6545620 : {}
297 : };
298 :
299 : /** Provide the composition of two 2D image iterators
300 :
301 : Use this template to compose two iterators into one (e.g. image
302 : and mask). Operations are transitive, e.g. operator== only returns
303 : true, if both wrapped iterator operator== have yielded true.
304 :
305 : Note that both iterators must have compatible difference types. To
306 : avoid funny effects, iterator ranges given by a CompositeIterator
307 : should consist of wrapped iterators of similar range
308 : */
309 554452 : template< typename Iterator1, typename Iterator2 > class CompositeIterator2D :
310 : public detail::CompositeIteratorBase< Iterator1,
311 : Iterator2,
312 : std::pair<
313 : typename vigra::IteratorTraits<Iterator1>::value_type,
314 : typename vigra::IteratorTraits<Iterator2>::value_type >,
315 : typename vigra::IteratorTraits<Iterator1>::difference_type,
316 : typename vigra::IteratorTraits<Iterator1>::iterator_category,
317 : CompositeIterator2D<Iterator1, Iterator2> >
318 : {
319 : typedef detail::CompositeIteratorBase< Iterator1,
320 : Iterator2,
321 : std::pair<
322 : typename vigra::IteratorTraits<Iterator1>::value_type,
323 : typename vigra::IteratorTraits<Iterator2>::value_type >,
324 : typename vigra::IteratorTraits<Iterator1>::difference_type,
325 : typename vigra::IteratorTraits<Iterator1>::iterator_category,
326 : CompositeIterator2D<Iterator1, Iterator2> > base_type;
327 : public:
328 : typedef CompositeIterator1D< typename Iterator1::row_iterator,
329 : typename Iterator2::row_iterator,
330 : typename base_type::value_type,
331 : int,
332 : typename base_type::iterator_category > row_iterator;
333 : typedef CompositeIterator1D< typename Iterator1::column_iterator,
334 : typename Iterator2::column_iterator,
335 : typename base_type::value_type,
336 : int,
337 : typename base_type::iterator_category > column_iterator;
338 :
339 : typedef detail::ArithmeticProxy< typename Iterator1::MoveX,
340 : typename Iterator2::MoveX > MoveX;
341 : typedef detail::ArithmeticProxy< typename Iterator1::MoveY,
342 : typename Iterator2::MoveY > MoveY;
343 :
344 : MoveX x;
345 : MoveY y;
346 :
347 : CompositeIterator2D() :
348 : base_type(),
349 : x(this->pImpl->maIter1.x,this->pImpl->maIter2.x),
350 : y(this->pImpl->maIter1.y,this->pImpl->maIter2.y)
351 : {}
352 :
353 168618 : CompositeIterator2D( const Iterator1& rIter1, const Iterator2& rIter2 ) :
354 : base_type( rIter1, rIter2 ),
355 : x(this->pImpl->maIter1.x,this->pImpl->maIter2.x),
356 168618 : y(this->pImpl->maIter1.y,this->pImpl->maIter2.y)
357 168618 : {}
358 :
359 385834 : CompositeIterator2D( const CompositeIterator2D& rOld ) :
360 : base_type(rOld),
361 : x(this->pImpl->maIter1.x,this->pImpl->maIter2.x),
362 385834 : y(this->pImpl->maIter1.y,this->pImpl->maIter2.y)
363 385834 : {}
364 :
365 : CompositeIterator2D& operator=( const CompositeIterator2D& rNew )
366 : {
367 : this->pImpl->maIter1 = rNew.pImpl->maIter1;
368 : this->pImpl->maIter2 = rNew.pImpl->maIter2;
369 :
370 : x = MoveX(this->pImpl->maIter1.x,
371 : this->pImpl->maIter2.x);
372 : y = MoveY(this->pImpl->maIter1.y,
373 : this->pImpl->maIter2.y);
374 :
375 : return *this;
376 : }
377 :
378 6495382 : row_iterator rowIterator() const
379 : {
380 : return row_iterator(this->pImpl->maIter1.rowIterator(),
381 6495382 : this->pImpl->maIter2.rowIterator());
382 : }
383 :
384 50238 : column_iterator columnIterator() const
385 : {
386 : return column_iterator(this->pImpl->maIter1.columnIterator(),
387 50238 : this->pImpl->maIter2.columnIterator());
388 : }
389 : };
390 :
391 : } // namespace basebmp
392 :
393 : #endif /* INCLUDED_BASEBMP_COMPOSITEITERATOR_HXX */
394 :
395 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
