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taskwarrior-2.x/src/commands/CmdColor.cpp
Paul Beckingham d4f85484df Internals 
- Modified color processing so that it can be disabled completely at
  compile time.  This is to assist the Windows port.
2012-03-03 09:08:46 -05:00

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////////////////////////////////////////////////////////////////////////////////
// taskwarrior - a command line task list manager.
//
// Copyright 2006-2012, 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
//
////////////////////////////////////////////////////////////////////////////////
#define L10N // Localization complete.
#include <sstream>
#include <ViewText.h>
#include <Context.h>
#include <main.h>
#include <Color.h>
#include <text.h>
#include <i18n.h>
#include <CmdColor.h>
extern Context context;
////////////////////////////////////////////////////////////////////////////////
CmdColor::CmdColor ()
{
_keyword = "colors";
_usage = "task colors [sample | legend]";
_description = STRING_CMD_COLOR_USAGE;
_read_only = true;
_displays_id = false;
}
////////////////////////////////////////////////////////////////////////////////
int CmdColor::execute (std::string& output)
{
int rc = 0;
#ifdef FEATURE_COLOR
// Get the non-attribute, non-fancy command line arguments.
bool legend = false;
std::vector <std::string> words = context.a3.extract_words ();
std::vector <std::string>::iterator word;
for (word = words.begin (); word != words.end (); ++word)
if (closeEnough ("legend", *word))
legend = true;
std::stringstream out;
if (context.color ())
{
// If the description contains 'legend', show all the colors currently in
// use.
if (legend)
{
out << "\n" << STRING_CMD_COLOR_HERE << "\n";
std::vector <std::string> all;
context.config.all (all);
ViewText view;
view.width (context.getWidth ());
view.add (Column::factory ("string", STRING_CMD_COLOR_COLOR));
view.add (Column::factory ("string", STRING_CMD_COLOR_DEFINITION));
std::vector <std::string>::iterator item;
for (item = all.begin (); item != all.end (); ++item)
{
// Skip items with 'color' in their name, that are not referring to
// actual colors.
if (*item != "_forcecolor" &&
*item != "color" &&
item->find ("color") == 0)
{
Color color (context.config.get (*item));
int row = view.addRow ();
view.set (row, 0, *item, color);
view.set (row, 1, context.config.get (*item), color);
}
}
out << view.render ()
<< "\n";
}
// If there is something in the description, then assume that is a color,
// and display it as a sample.
else if (words.size ())
{
Color one ("black on bright yellow");
Color two ("underline cyan on bright blue");
Color three ("color214 on color202");
Color four ("rgb150 on rgb020");
Color five ("underline grey10 on grey3");
Color six ("red on color173");
std::string swatch;
for (word = words.begin (); word != words.end (); ++word)
{
if (word != words.begin ())
swatch += " ";
swatch += *word;
}
Color sample (swatch);
out << "\n"
<< STRING_CMD_COLOR_EXPLANATION << "\n"
<< "\n\n"
<< STRING_CMD_COLOR_16 << "\n"
<< " " << one.colorize ("task color black on bright yellow") << "\n"
<< " " << two.colorize ("task color underline cyan on bright blue") << "\n"
<< "\n"
<< STRING_CMD_COLOR_256 << "\n"
<< " " << three.colorize ("task color color214 on color202") << "\n"
<< " " << four.colorize ("task color rgb150 on rgb020") << "\n"
<< " " << five.colorize ("task color underline grey10 on grey3") << "\n"
<< " " << six.colorize ("task color red on color173") << "\n"
<< "\n"
<< STRING_CMD_COLOR_YOURS << "\n"
<< " " << sample.colorize ("task color " + swatch) << "\n\n";
}
// Show all supported colors. Possibly show some unsupported ones too.
else
{
out << "\n"
<< STRING_CMD_COLOR_BASIC
<< "\n"
<< " " << Color::colorize (" black ", "black")
<< " " << Color::colorize (" red ", "red")
<< " " << Color::colorize (" blue ", "blue")
<< " " << Color::colorize (" green ", "green")
<< " " << Color::colorize (" magenta ", "magenta")
<< " " << Color::colorize (" cyan ", "cyan")
<< " " << Color::colorize (" yellow ", "yellow")
<< " " << Color::colorize (" white ", "white")
<< "\n"
<< " " << Color::colorize (" black ", "white on black")
<< " " << Color::colorize (" red ", "white on red")
<< " " << Color::colorize (" blue ", "white on blue")
<< " " << Color::colorize (" green ", "black on green")
<< " " << Color::colorize (" magenta ", "black on magenta")
<< " " << Color::colorize (" cyan ", "black on cyan")
<< " " << Color::colorize (" yellow ", "black on yellow")
<< " " << Color::colorize (" white ", "black on white")
<< "\n\n";
out << STRING_CMD_COLOR_EFFECTS
<< "\n"
<< " " << Color::colorize (" red ", "red")
<< " " << Color::colorize (" bold red ", "bold red")
<< " " << Color::colorize (" underline on blue ", "underline on blue")
<< " " << Color::colorize (" on green ", "black on green")
<< " " << Color::colorize (" on bright green ", "black on bright green")
<< " " << Color::colorize (" inverse ", "inverse")
<< "\n\n";
// 16 system colors.
out << "color0 - color15"
<< "\n"
<< " 0 1 2 . . .\n";
for (int r = 0; r < 2; ++r)
{
out << " ";
for (int c = 0; c < 8; ++c)
{
std::stringstream s;
s << "on color" << (r*8 + c);
out << Color::colorize (" ", s.str ());
}
out << "\n";
}
out << " . . . 15\n\n";
// Color cube.
out << STRING_CMD_COLOR_CUBE
<< Color::colorize ("0", "bold red")
<< Color::colorize ("0", "bold green")
<< Color::colorize ("0", "bold blue")
<< " - rgb"
<< Color::colorize ("5", "bold red")
<< Color::colorize ("5", "bold green")
<< Color::colorize ("5", "bold blue")
<< " (also color16 - color231)"
<< "\n"
<< " " << Color::colorize ("0 "
"1 "
"2 "
"3 "
"4 "
"5", "bold red")
<< "\n"
<< " " << Color::colorize ("0 1 2 3 4 5 "
"0 1 2 3 4 5 "
"0 1 2 3 4 5 "
"0 1 2 3 4 5 "
"0 1 2 3 4 5 "
"0 1 2 3 4 5", "bold blue")
<< "\n";
char label [12];
for (int g = 0; g < 6; ++g)
{
sprintf (label, " %d", g);
out << Color::colorize (label, "bold green");
for (int r = 0; r < 6; ++r)
{
for (int b = 0; b < 6; ++b)
{
std::stringstream s;
s << "on rgb" << r << g << b;
out << Color::colorize (" ", s.str ());
}
out << " ";
}
out << "\n";
}
out << "\n";
// Grey ramp.
out << STRING_CMD_COLOR_RAMP
<< " gray0 - gray23 (also color232 - color255)\n"
<< " 0 1 2 . . . . . . 23\n"
<< " ";
for (int g = 0; g < 24; ++g)
{
std::stringstream s;
s << "on gray" << g;
out << Color::colorize (" ", s.str ());
}
out << "\n\n"
<< format (STRING_CMD_COLOR_TRY, "task color white on red")
<< "\n\n";
}
}
else
{
out << STRING_CMD_COLOR_OFF << "\n";
rc = 1;
}
output = out.str ();
#else
output = "Color not supported.\n";
#endif
return rc;
}
////////////////////////////////////////////////////////////////////////////////
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