source: trunk/lib/ColumnStream.h @ 617

Last change on this file since 617 was 617, checked in by Jari Häkkinen, 13 years ago

#include as little as possible.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 2.2 KB
Line 
1#ifndef _theplu_svndigest_column_stream_
2#define _theplu_svndigest_column_stream_
3
4// $Id: ColumnStream.h 617 2008-04-22 16:07:11Z jari $
5
6/*
7  Copyright (C) 2007 Peter Johansson
8  Copyright (C) 2008 Jari Häkkinen
9
10  This file is part of svndigest, http://trac.thep.lu.se/svndigest
11
12  svndigest is free software; you can redistribute it and/or modify it
13  under the terms of the GNU General Public License as published by
14  the Free Software Foundation; either version 2 of the License, or
15  (at your option) any later version.
16
17  svndigest is distributed in the hope that it will be useful, but
18  WITHOUT ANY WARRANTY; without even the implied warranty of
19  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20  General Public License for more details.
21
22  You should have received a copy of the GNU General Public License
23  along with this program; if not, write to the Free Software
24  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
25  02111-1307, USA.
26*/
27
28#include <iosfwd>
29#include <sstream>
30#include <vector>
31
32namespace theplu{
33namespace svndigest{
34
35  ///
36  /// ostream for sending to multiple columns
37  ///
38  class ColumnStream
39  {
40  public:
41
42    ///
43    /// @brief Constructor
44    ///
45    ColumnStream(std::ostream& os, size_t columns);
46
47    ///
48    /// @brief Destructor
49    ///
50    ~ColumnStream(void);
51
52    ///
53    /// flush to ostream, goes to newline andactivates first column
54    ///
55    void flush(void);
56
57    inline size_t& margin(size_t c) { return margins_[c]; }
58
59    void next_column(void);
60
61    ///
62    /// \brief print to active column
63    ///
64    void print(std::stringstream&);
65
66    ///
67    /// \brief select which column is active
68    ///
69    void set_column(size_t);
70
71    inline size_t& width(size_t c) { return width_[c]; }
72
73  private:
74    ///
75    /// @brief Copy Constructor, not implemented
76    ///
77    ColumnStream(const ColumnStream&);
78
79    void fill(size_t, size_t);
80    bool writeline(size_t i);
81    inline size_t columns(void) const { return buffer_.size(); }
82   
83
84    size_t activated_;
85    std::vector<size_t> margins_;
86    std::ostream& os_;
87    std::vector<std::stringstream*> buffer_;
88    std::vector<size_t> width_;
89  };
90
91
92  template <typename T>
93  ColumnStream& operator<<(ColumnStream& s, const T& rhs)
94  {
95    std::stringstream ss;
96    ss << rhs;
97    s.print(ss);
98    return s;
99  }
100
101}} // end of namespace svndigest and namespace theplu
102
103#endif
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