78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
/**
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Copyright (c) 2014 Alex Tsui
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef COLUMN_FORMATTER_H
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#define COLUMN_FORMATTER_H
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#include <list>
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#include <string>
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#include <vector>
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/**
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Format a list of items into as many columns as width permits.
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*/
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class ColumnFormatter
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{
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protected:
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std::vector<std::string> items;
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std::vector< std::list<std::string> > columns;
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std::list< std::string > m_formattedOutput;
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public:
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/**
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Load items from file, one item per line.
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*/
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bool load(const std::string& fn);
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template <class InputIterator>
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void setItems(InputIterator begin, InputIterator end)
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{
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items.clear();
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for (InputIterator it = begin; it != end; ++it)
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{
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items.push_back(*it);
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}
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}
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/**
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Determine the number of columns that the items can be into, given a
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width limit.
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*/
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int solve(int width);
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/**
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Divide items into numColumns.
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*/
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std::vector<int> divideItems(int numColumns);
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/**
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Generate formatted output, the items formatted into as many columns as can
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be fit in width.
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*/
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void format(int width);
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/**
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Get output.
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*/
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const std::list<std::string>& formattedOutput() const;
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};
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#endif // COLUMN_FORMATTER_H
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