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Table: Added string table renderer

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This commit is contained in:
Paul Beckingham 2016-01-05 16:56:16 -05:00
parent 201bf5ad21
commit 60a13aa10c
3 changed files with 408 additions and 1 deletions
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3
src/CMakeLists.txt
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@ -8,7 +8,8 @@ set (timew_SRCS Grammar.cpp Grammar.h
Lexer.cpp Lexer.h
LR0.cpp LR0.h
Pig.cpp Pig.h
Rules.cpp Rules.h)
Rules.cpp Rules.h
Table.cpp Table.h)
add_library (timew STATIC ${timew_SRCS})
add_executable (timew_executable timew.cpp)

312
src/Table.cpp Normal file
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////////////////////////////////////////////////////////////////////////////////
//
// Copyright 2006 - 2016, Paul Beckingham, Federico Hernandez.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// http://www.opensource.org/licenses/mit-license.php
//
////////////////////////////////////////////////////////////////////////////////
#include <cmake.h>
#include <Table.h>
#include <text.h>
#include <utf8.h>
////////////////////////////////////////////////////////////////////////////////
Table::Table ()
: _width (0)
, _left_margin (0)
, _header (0)
, _odd (0)
, _even (0)
, _intra_padding (1)
, _intra_odd (0)
, _intra_even (0)
, _extra_padding (0)
, _extra_odd (0)
, _extra_even (0)
, _truncate_lines (0)
, _truncate_rows (0)
, _lines (0)
, _rows (0)
{
}
////////////////////////////////////////////////////////////////////////////////
int Table::addRow ()
{
_data.push_back (std::vector <std::string> (_columns.size (), ""));
_color.push_back (std::vector <Color> (_columns.size (), Color::nocolor));
return _data.size () - 1;
}
////////////////////////////////////////////////////////////////////////////////
void Table::set (int row, int col, const std::string& value, Color color)
{
_data[row][col] = value;
if (color.nontrivial ())
_color[row][col] = color;
}
////////////////////////////////////////////////////////////////////////////////
void Table::set (int row, int col, int value, Color color)
{
std::string string_value = format (value);
_data[row][col] = string_value;
if (color.nontrivial ())
_color[row][col] = color;
}
////////////////////////////////////////////////////////////////////////////////
void Table::set (int row, int col, Color color)
{
if (color.nontrivial ())
_color[row][col] = color;
}
////////////////////////////////////////////////////////////////////////////////
std::string Table::render ()
{
// Determine minimal, ideal column widths.
std::vector <int> minimal;
std::vector <int> ideal;
for (unsigned int col = 0; col < _columns.size (); ++col)
{
// Headers factor in to width calculations.
unsigned int global_min = utf8_width (_columns[col]);
unsigned int global_ideal = global_min;
for (unsigned int row = 0; row < _data.size (); ++row)
{
// Determine minimum and ideal width for this column.
unsigned int min = 0;
unsigned int ideal = 0;
measureCell (_data[row][col], min, ideal);
if (min > global_min) global_min = min;
if (ideal > global_ideal) global_ideal = ideal;
}
minimal.push_back (global_min);
ideal.push_back (global_ideal);
}
// Sum the minimal widths.
int sum_minimal = 0;
for (auto& c : minimal)
sum_minimal += c;
// Sum the ideal widths.
int sum_ideal = 0;
for (auto& c : ideal)
sum_ideal += c;
// Calculate final column widths.
int overage = _width
- _left_margin
- (2 * _extra_padding)
- ((_columns.size () - 1) * _intra_padding);
std::vector <int> widths;
if (sum_ideal <= overage)
widths = ideal;
else if (sum_minimal > overage || overage < 0)
widths = minimal;
else if (overage > 0)
{
widths = minimal;
overage -= sum_minimal;
// Spread 'overage' among columns where width[i] < ideal[i]
while (overage)
{
for (unsigned int i = 0; i < _columns.size () && overage; ++i)
{
if (widths[i] < ideal[i])
{
++widths[i];
--overage;
}
}
}
}
// Compose column headers.
unsigned int max_lines = 0;
std::vector <std::vector <std::string>> headers;
for (unsigned int c = 0; c < _columns.size (); ++c)
{
headers.push_back ({});
renderCell (headers[c], _columns[c], widths[c], _align[c], _header);
if (headers[c].size () > max_lines)
max_lines = headers[c].size ();
}
// Output string.
std::string out;
_lines = 0;
// Render column headers.
std::string left_margin = std::string (_left_margin, ' ');
std::string extra = std::string (_extra_padding, ' ');
std::string intra = std::string (_intra_padding, ' ');
std::string extra_odd = _extra_odd.colorize (extra);
std::string extra_even = _extra_even.colorize (extra);
std::string intra_odd = _intra_odd.colorize (intra);
std::string intra_even = _intra_even.colorize (intra);
for (unsigned int i = 0; i < max_lines; ++i)
{
out += left_margin + extra;
for (unsigned int c = 0; c < _columns.size (); ++c)
{
if (c)
out += intra;
if (headers[c].size () < max_lines - i)
out += _header.colorize (std::string (widths[c], ' '));
else
out += headers[c][i];
}
out += extra;
// Trim right.
out.erase (out.find_last_not_of (" ") + 1);
out += "\n";
// Stop if the line limit is exceeded.
if (++_lines >= _truncate_lines && _truncate_lines != 0)
return out;
}
// Compose, render columns, in sequence.
_rows = 0;
std::vector <std::vector <std::string>> cells;
for (unsigned int row = 0; row < _data.size (); ++row)
{
max_lines = 0;
// Alternate rows based on |s % 2|
bool odd = (row % 2) ? true : false;
Color row_color = odd ? _odd : _even;
// TODO row_color.blend (provided color);
// TODO Problem: colors for columns are specified, not rows,
// therefore there are only cell colors, not intra colors.
Color cell_color;
for (unsigned int col = 0; col < _columns.size (); ++col)
{
cell_color = row_color;
cell_color.blend (_color[row][col]);
cells.push_back (std::vector <std::string> ());
renderCell (cells[col], _data[row][col], widths[col], _align[col], cell_color);
if (cells[col].size () > max_lines)
max_lines = cells[col].size ();
}
for (unsigned int i = 0; i < max_lines; ++i)
{
out += left_margin + (odd ? extra_odd : extra_even);
for (unsigned int col = 0; col < _columns.size (); ++col)
{
if (col)
{
if (row_color.nontrivial ())
out += row_color.colorize (intra);
else
out += (odd ? intra_odd : intra_even);
}
if (i < cells[col].size ())
out += cells[col][i];
else
{
cell_color = row_color;
cell_color.blend (_color[row][col]);
out += cell_color.colorize (std::string (widths[col], ' '));
}
}
out += (odd ? extra_odd : extra_even);
// Trim right.
out.erase (out.find_last_not_of (" ") + 1);
out += "\n";
// Stop if the line limit is exceeded.
if (++_lines >= _truncate_lines && _truncate_lines != 0)
return out;
}
cells.clear ();
// Stop if the row limit is exceeded.
if (++_rows >= _truncate_rows && _truncate_rows != 0)
return out;
}
return out;
}
////////////////////////////////////////////////////////////////////////////////
void Table::measureCell (
const std::string& data,
unsigned int& minimum,
unsigned int& maximum) const
{
std::string stripped = Color::strip (data);
maximum = longestLine (stripped);
minimum = longestWord (stripped);
}
////////////////////////////////////////////////////////////////////////////////
void Table::renderCell (
std::vector <std::string>& lines,
const std::string& value,
int width,
bool alignLeft,
Color& color) const
{
std::vector <std::string> raw;
wrapText (raw, value, width, false);
for (auto& line : raw)
if (alignLeft)
lines.push_back (
color.colorize (
leftJustify (line, width)));
else
lines.push_back (
color.colorize (
rightJustify (line, width)));
}
////////////////////////////////////////////////////////////////////////////////

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src/Table.h Normal file
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////////////////////////////////////////////////////////////////////////////////
//
// Copyright 2006 - 2016, Paul Beckingham, Federico Hernandez.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// http://www.opensource.org/licenses/mit-license.php
//
////////////////////////////////////////////////////////////////////////////////
#ifndef INCLUDED_VIEWTEXT
#define INCLUDED_VIEWTEXT
#include <string>
#include <vector>
#include <Color.h>
class Table
{
public:
Table ();
// View specifications.
void add (const std::string& col, bool alignLeft = true) { _columns.push_back (col); _align.push_back (alignLeft); }
void width (int width) { _width = width; }
void leftMargin (int margin) { _left_margin = margin; }
void colorHeader (Color& c) { _header = c; }
void colorOdd (Color& c) { _odd = c; }
void colorEven (Color& c) { _even = c; }
void intraPadding (int padding) { _intra_padding = padding; }
void intraColorOdd (Color& c) { _intra_odd = c; }
void intraColorEven (Color& c) { _intra_even = c; }
void extraPadding (int padding) { _extra_padding = padding; }
void extraColorOdd (Color& c) { _extra_odd = c; }
void extraColorEven (Color& c) { _extra_even = c; }
void truncateLines (int n) { _truncate_lines = n; }
void truncateRows (int n) { _truncate_rows = n; }
int lines () { return _lines; }
int rows () { return (int) _data.size (); }
// Data provision.
int addRow ();
void set (int, int, const std::string&, Color color = Color::nocolor);
void set (int, int, int, Color color = Color::nocolor);
void set (int, int, Color);
// View rendering.
std::string render ();
private:
void measureCell (const std::string&, unsigned int&, unsigned int&) const;
void renderCell (std::vector <std::string>&, const std::string&, int, bool, Color&) const;
private:
std::vector <std::vector <std::string>> _data;
std::vector <std::vector <Color>> _color;
std::vector <std::string> _columns;
std::vector <bool> _align;
int _width;
int _left_margin;
Color _header;
Color _odd;
Color _even;
int _intra_padding;
Color _intra_odd;
Color _intra_even;
int _extra_padding;
Color _extra_odd;
Color _extra_even;
int _truncate_lines;
int _truncate_rows;
int _lines;
int _rows;
};
#endif
////////////////////////////////////////////////////////////////////////////////