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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Defines a set of geometric ranges, and standard operations on it.
#ifndef PDF_LOADER_RANGE_SET_H_
#define PDF_LOADER_RANGE_SET_H_
#include <ostream>
#include <set>
#include <string>
#include "ui/gfx/range/range.h"
namespace chrome_pdf {
class RangeSet {
public:
RangeSet();
explicit RangeSet(const gfx::Range& range);
~RangeSet();
RangeSet(const RangeSet& range_set);
RangeSet(RangeSet&& range_set);
RangeSet& operator=(const RangeSet& other);
bool operator==(const RangeSet& other) const;
bool operator!=(const RangeSet& other) const;
bool Contains(uint32_t point) const;
bool Contains(const gfx::Range& range) const;
bool Contains(const RangeSet& range_set) const;
bool Intersects(const gfx::Range& range) const;
bool Intersects(const RangeSet& range_set) const;
void Union(const gfx::Range& range);
void Union(const RangeSet& range_set);
void Intersect(const gfx::Range& range);
void Intersect(const RangeSet& range_set);
void Subtract(const gfx::Range& range);
void Subtract(const RangeSet& range_set);
void Xor(const gfx::Range& range);
void Xor(const RangeSet& range_set);
bool IsEmpty() const;
void Clear();
gfx::Range First() const;
gfx::Range Last() const;
std::string ToString() const;
struct range_compare {
bool operator()(const gfx::Range& lval, const gfx::Range& rval) const {
return lval.start() < rval.start();
}
};
using RangesContainer = std::set<gfx::Range, range_compare>;
const RangesContainer& ranges() const { return ranges_; }
size_t Size() const { return ranges_.size(); }
private:
RangesContainer ranges_;
};
} // namespace chrome_pdf
std::ostream& operator<<(std::ostream& os,
const chrome_pdf::RangeSet& range_set);
#endif // PDF_LOADER_RANGE_SET_H_
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