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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 // Defines a set of geometric ranges, and standard operations on it. |
| 6 |
| 7 #ifndef PDF_RANGE_SET_H_ |
| 8 #define PDF_RANGE_SET_H_ |
| 9 |
| 10 #include <ostream> |
| 11 #include <set> |
| 12 #include <string> |
| 13 |
| 14 #include "ui/gfx/range/range.h" |
| 15 |
| 16 namespace chrome_pdf { |
| 17 |
| 18 class RangeSet { |
| 19 public: |
| 20 RangeSet(); |
| 21 explicit RangeSet(const gfx::Range& range); |
| 22 ~RangeSet(); |
| 23 |
| 24 RangeSet(const RangeSet& range_set); |
| 25 RangeSet(RangeSet&& range_set); |
| 26 RangeSet& operator=(const RangeSet& other); |
| 27 |
| 28 bool operator==(const RangeSet& other) const; |
| 29 bool operator!=(const RangeSet& other) const; |
| 30 |
| 31 bool Contains(uint32_t point) const; |
| 32 bool Contains(const gfx::Range& range) const; |
| 33 bool Contains(const RangeSet& range_set) const; |
| 34 |
| 35 bool Intersects(const gfx::Range& range) const; |
| 36 bool Intersects(const RangeSet& range_set) const; |
| 37 |
| 38 void Union(const gfx::Range& range); |
| 39 void Union(const RangeSet& range_set); |
| 40 |
| 41 void Intersect(const gfx::Range& range); |
| 42 void Intersect(const RangeSet& range_set); |
| 43 |
| 44 void Subtract(const gfx::Range& range); |
| 45 void Subtract(const RangeSet& range_set); |
| 46 |
| 47 void Xor(const gfx::Range& range); |
| 48 void Xor(const RangeSet& range_set); |
| 49 |
| 50 bool IsEmpty() const; |
| 51 void Clear(); |
| 52 |
| 53 gfx::Range First() const; |
| 54 gfx::Range Last() const; |
| 55 std::string ToString() const; |
| 56 |
| 57 struct range_compare { |
| 58 bool operator()(const gfx::Range& lval, const gfx::Range& rval) const { |
| 59 return lval.start() < rval.start(); |
| 60 } |
| 61 }; |
| 62 |
| 63 using RangesContainer = std::set<gfx::Range, range_compare>; |
| 64 |
| 65 const RangesContainer& ranges() const { return ranges_; } |
| 66 size_t Size() const { return ranges_.size(); } |
| 67 |
| 68 private: |
| 69 RangesContainer ranges_; |
| 70 }; |
| 71 |
| 72 } // namespace chrome_pdf |
| 73 |
| 74 std::ostream& operator<<(std::ostream& os, |
| 75 const chrome_pdf::RangeSet& range_set); |
| 76 |
| 77 #endif // PDF_RANGE_SET_H_ |
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