2011-11-07 01:15:37 +00:00
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#pragma once
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#include <DB/DataStreams/IBlockOutputStream.h>
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2011-11-07 04:51:37 +00:00
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#define PRETTY_FORMAT_DEFAULT_MAX_ROWS 1000
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2011-11-07 01:15:37 +00:00
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namespace DB
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{
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/** Выводит результат в виде красивых таблиц.
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*/
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class PrettyBlockOutputStream : public IBlockOutputStream
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{
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public:
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2012-06-25 05:07:34 +00:00
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/// no_escapes - не использовать ANSI escape sequences - для отображения в браузере, а не в консоли.
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PrettyBlockOutputStream(WriteBuffer & ostr_, bool no_escapes_ = false, size_t max_rows_ = PRETTY_FORMAT_DEFAULT_MAX_ROWS);
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2011-11-07 01:15:37 +00:00
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void write(const Block & block);
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2011-11-07 04:51:37 +00:00
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void writeSuffix();
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2011-11-07 01:15:37 +00:00
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BlockOutputStreamPtr clone() { return new PrettyBlockOutputStream(ostr); }
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2011-11-28 04:05:53 +00:00
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protected:
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typedef std::vector<size_t> Widths_t;
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/// Вычислить видимую (при выводе на консоль с кодировкой UTF-8) ширину значений и имён столбцов.
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void calculateWidths(Block & block, Widths_t & max_widths, Widths_t & name_widths);
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2011-11-07 01:15:37 +00:00
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WriteBuffer & ostr;
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2011-11-07 04:51:37 +00:00
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size_t max_rows;
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2011-11-07 01:15:37 +00:00
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size_t total_rows;
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2011-11-07 04:51:37 +00:00
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size_t terminal_width;
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2012-06-25 05:07:34 +00:00
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bool no_escapes;
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2011-11-07 01:15:37 +00:00
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};
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}
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