lyx_mirror/src/Color.cpp

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/**
* \file Color.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Asger Alstrup
* \author Lars Gullik Bjønnes
* \author Matthias Ettrich
* \author Jean-Marc Lasgouttes
* \author John Levon
* \author André Pönitz
* \author Martin Vermeer
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "Color.h"
#include "ColorSet.h"
#include "support/convert.h"
#include "support/debug.h"
#include "support/gettext.h"
#include "support/lstrings.h"
#include "support/lassert.h"
#include <map>
#include <cmath>
#include <sstream>
#include <iomanip>
using namespace std;
using namespace lyx::support;
namespace lyx {
struct ColorSet::ColorEntry {
ColorCode lcolor;
char const * guiname;
char const * latexname;
char const * x11name;
char const * lyxname;
};
static int hexstrToInt(string const & str)
{
int val = 0;
istringstream is(str);
is >> setbase(16) >> val;
return val;
}
/////////////////////////////////////////////////////////////////////
//
// RGBColor
//
/////////////////////////////////////////////////////////////////////
string const X11hexname(RGBColor const & col)
{
ostringstream ostr;
ostr << '#' << setbase(16) << setfill('0')
<< setw(2) << col.r
<< setw(2) << col.g
<< setw(2) << col.b;
return ostr.str();
}
RGBColor rgbFromHexName(string const & x11hexname)
{
RGBColor c;
LASSERT(x11hexname.size() == 7 && x11hexname[0] == '#',
return c);
c.r = hexstrToInt(x11hexname.substr(1, 2));
c.g = hexstrToInt(x11hexname.substr(3, 2));
c.b = hexstrToInt(x11hexname.substr(5, 2));
return c;
}
string const outputLaTeXColor(RGBColor const & color)
{
// this routine returns a LaTeX readable color string in the form
// "red, green, blue" where the colors are a number in the range 0-1
int red = color.r;
int green = color.g;
int blue = color.b;
#ifdef USE_CORRECT_RGB_CONVERSION
int const scale = 255;
#else
// the color values are given in the range of 0-255, so to get
// an output of "0.5" for the value 127 we need to do the following
// FIXME: This is wrong, since it creates a nonlinear mapping:
// There is a gap between 0/256 and 2/256!
// 0.5 cannot be represented in 8bit hex RGB, it would be 127.5.
if (red != 0)
++red;
if (green != 0)
++green;
if (blue != 0)
++blue;
int const scale = 256;
#endif
string output;
output = convert<string>(float(red) / scale) + ", "
+ convert<string>(float(green) / scale) + ", "
+ convert<string>(float(blue) / scale);
return output;
}
RGBColor const RGBColorFromLaTeX(string const & color)
{
vector<string> rgb = getVectorFromString(color);
while (rgb.size() < 3)
rgb.push_back("0");
RGBColor c;
for (int i = 0; i < 3; ++i) {
rgb[i] = trim(rgb[i]);
if (!isStrDbl(rgb[i]))
return c;
}
#ifdef USE_CORRECT_RGB_CONVERSION
int const scale = 255;
#else
// FIXME: This is wrong, since it creates a nonlinear mapping:
// Both 0/256 and 1/256 are mapped to 0!
// The wrong code exists only to match outputLaTeXColor().
int const scale = 256;
#endif
c.r = static_cast<unsigned int>(scale * convert<double>(rgb[0]) + 0.5);
c.g = static_cast<unsigned int>(scale * convert<double>(rgb[1]) + 0.5);
c.b = static_cast<unsigned int>(scale * convert<double>(rgb[2]) + 0.5);
#ifndef USE_CORRECT_RGB_CONVERSION
if (c.r != 0)
c.r--;
if (c.g != 0)
c.g--;
if (c.b != 0)
c.b--;
#endif
return c;
}
Color::Color(ColorCode base_color) : baseColor(base_color),
mergeColor(Color_ignore)
{}
bool Color::operator==(Color const & color) const
{
return baseColor == color.baseColor;
}
bool Color::operator!=(Color const & color) const
{
return baseColor != color.baseColor;
}
bool Color::operator<(Color const & color) const
{
return baseColor < color.baseColor;
}
bool Color::operator<=(Color const & color) const
{
return baseColor <= color.baseColor;
}
std::ostream & operator<<(std::ostream & os, Color color)
{
os << to_ascii(lcolor.getGUIName(color.baseColor));
if (color.mergeColor != Color_ignore)
os << "[merged with:"
<< to_ascii(lcolor.getGUIName(color.mergeColor)) << "]";
return os;
}
ColorSet::ColorSet()
{
char const * grey40 = "#666666";
char const * grey60 = "#999999";
char const * grey80 = "#cccccc";
//char const * grey90 = "#e5e5e5";
// ColorCode, gui, latex, x11, lyx
// Warning: several of these entries are overridden in GuiApplication constructor
static ColorEntry const items[] = {
{ Color_none, N_("none"), "none", "black", "none" },
{ Color_black, N_("black"), "black", "black", "black" },
{ Color_white, N_("white"), "white", "white", "white" },
{ Color_red, N_("red"), "red", "red", "red" },
{ Color_green, N_("green"), "green", "green", "green" },
{ Color_blue, N_("blue"), "blue", "blue", "blue" },
{ Color_cyan, N_("cyan"), "cyan", "cyan", "cyan" },
{ Color_magenta, N_("magenta"), "magenta", "magenta", "magenta" },
{ Color_yellow, N_("yellow"), "yellow", "yellow", "yellow" },
{ Color_cursor, N_("cursor"), "cursor", "black", "cursor" },
{ Color_background, N_("background"), "background", "linen", "background" },
{ Color_foreground, N_("text"), "foreground", "black", "foreground" },
{ Color_selection, N_("selection"), "selection", "LightBlue", "selection" },
{ Color_selectiontext, N_("selected text"),
"selectiontext", "black", "selectiontext" },
{ Color_latex, N_("LaTeX text"), "latex", "DarkRed", "latex" },
{ Color_inlinecompletion, N_("inline completion"),
"inlinecompletion", grey60, "inlinecompletion" },
{ Color_nonunique_inlinecompletion, N_("non-unique inline completion"),
"nonuniqueinlinecompletion", grey80, "nonuniqueinlinecompletion" },
{ Color_preview, N_("previewed snippet"), "preview", "black", "preview" },
{ Color_notelabel, N_("note label"), "note", "yellow", "note" },
{ Color_notebg, N_("note background"), "notebg", "yellow", "notebg" },
{ Color_commentlabel, N_("comment label"), "comment", "magenta", "comment" },
{ Color_commentbg, N_("comment background"), "commentbg", "linen", "commentbg" },
{ Color_greyedoutlabel, N_("greyedout inset label"), "greyedout", "#ff0080", "greyedout" },
{ Color_greyedouttext, N_("greyedout inset text"), "greyedouttext", grey80, "greyedouttext" },
{ Color_greyedoutbg, N_("greyedout inset background"), "greyedoutbg", "linen", "greyedoutbg" },
{ Color_phantomtext, N_("phantom inset text"), "phantomtext", "#7f7f7f", "phantomtext" },
{ Color_shadedbg, N_("shaded box"), "shaded", "#ff0000", "shaded" },
{ Color_listingsbg, N_("listings background"), "listingsbg", "white", "listingsbg" },
{ Color_branchlabel, N_("branch label"), "branchlabel", "#c88000", "branchlabel" },
{ Color_footlabel, N_("footnote label"), "footlabel", "#00aaff", "footlabel" },
{ Color_indexlabel, N_("index label"), "indexlabel", "green", "indexlabel" },
{ Color_marginlabel, N_("margin note label"), "marginlabel", "#aa55ff", "marginlabel" },
{ Color_urllabel, N_("URL label"), "urllabel", "blue", "urllabel" },
{ Color_urltext, N_("URL text"), "urltext", "blue", "urltext" },
{ Color_depthbar, N_("depth bar"), "depthbar", "IndianRed", "depthbar" },
{ Color_language, N_("language"), "language", "Blue", "language" },
{ Color_command, N_("command inset"), "command", "black", "command" },
{ Color_commandbg, N_("command inset background"), "commandbg", "azure", "commandbg" },
{ Color_commandframe, N_("command inset frame"), "commandframe", "black", "commandframe" },
{ Color_special, N_("special character"), "special", "RoyalBlue", "special" },
{ Color_math, N_("math"), "math", "DarkBlue", "math" },
{ Color_mathbg, N_("math background"), "mathbg", "linen", "mathbg" },
{ Color_graphicsbg, N_("graphics background"), "graphicsbg", "linen", "graphicsbg" },
{ Color_mathmacrobg, N_("math macro background"), "mathmacrobg", "linen", "mathmacrobg" },
{ Color_mathframe, N_("math frame"), "mathframe", "Magenta", "mathframe" },
{ Color_mathcorners, N_("math corners"), "mathcorners", "linen", "mathcorners" },
{ Color_mathline, N_("math line"), "mathline", "Blue", "mathline" },
{ Color_mathmacrobg, N_("math macro background"), "mathmacrobg", "#ede2d8", "mathmacrobg" },
{ Color_mathmacrohoverbg, N_("math macro hovered background"), "mathmacrohoverbg", "#cdc3b8", "mathmacrohoverbg" },
{ Color_mathmacrolabel, N_("math macro label"), "mathmacrolabel", "#a19992", "mathmacrolabel" },
{ Color_mathmacroframe, N_("math macro frame"), "mathmacroframe", "#ede2d8", "mathmacroframe" },
{ Color_mathmacroblend, N_("math macro blended out"), "mathmacroblend", "black", "mathmacroblend" },
{ Color_mathmacrooldarg, N_("math macro old parameter"), "mathmacrooldarg", grey80, "mathmacrooldarg" },
{ Color_mathmacronewarg, N_("math macro new parameter"), "mathmacronewarg", "black", "mathmacronewarg" },
{ Color_collapsable, N_("collapsable inset text"), "collapsable", "DarkRed", "collapsable" },
{ Color_collapsableframe, N_("collapsable inset frame"), "collapsableframe", "IndianRed", "collapsableframe" },
{ Color_insetbg, N_("inset background"), "insetbg", grey80, "insetbg" },
{ Color_insetframe, N_("inset frame"), "insetframe", "IndianRed", "insetframe" },
{ Color_error, N_("LaTeX error"), "error", "Red", "error" },
{ Color_eolmarker, N_("end-of-line marker"), "eolmarker", "Brown", "eolmarker" },
{ Color_appendix, N_("appendix marker"), "appendix", "Brown", "appendix" },
{ Color_changebar, N_("change bar"), "changebar", "Blue", "changebar" },
{ Color_deletedtext, N_("deleted text"), "deletedtext", "#ff0000", "deletedtext" },
{ Color_addedtext, N_("added text"), "addedtext", "#0000ff", "addedtext" },
{ Color_changedtextauthor1, N_("changed text 1st author"), "changedtextauthor1", "#0000ff", "changedtextauthor1" },
{ Color_changedtextauthor2, N_("changed text 2nd author"), "changedtextauthor2", "#ff00ff", "changedtextauthor2" },
{ Color_changedtextauthor3, N_("changed text 3rd author"), "changedtextauthor3", "#ff0000", "changedtextauthor3" },
{ Color_changedtextauthor4, N_("changed text 4th author"), "changedtextauthor4", "#aa00ff", "changedtextauthor4" },
{ Color_changedtextauthor5, N_("changed text 5th author"), "changedtextauthor5", "#55aa00", "changedtextauthor5" },
{ Color_deletedtextmodifier, N_("deleted text modifier"), "deletedtextmodifier", "white", "deletedtextmodifier" },
{ Color_added_space, N_("added space markers"), "added_space", "Brown", "added_space" },
{ Color_tabularline, N_("table line"), "tabularline", "black", "tabularline" },
{ Color_tabularonoffline, N_("table on/off line"), "tabularonoffline",
"LightSteelBlue", "tabularonoffline" },
{ Color_bottomarea, N_("bottom area"), "bottomarea", grey40, "bottomarea" },
{ Color_newpage, N_("new page"), "newpage", "Blue", "newpage" },
{ Color_pagebreak, N_("page break / line break"), "pagebreak", "RoyalBlue", "pagebreak" },
{ Color_buttonframe, N_("frame of button"), "buttonframe", "#dcd2c8", "buttonframe" },
{ Color_buttonbg, N_("button background"), "buttonbg", "#dcd2c8", "buttonbg" },
{ Color_buttonhoverbg, N_("button background under focus"), "buttonhoverbg", "#C7C7CA", "buttonhoverbg" },
{ Color_paragraphmarker, N_("paragraph marker"), "paragraphmarker", grey80, "paragraphmarker"},
{ Color_previewframe, N_("preview frame"), "previewframe", "black", "previewframe"},
{ Color_inherit, N_("inherit"), "inherit", "black", "inherit" },
{ Color_regexpframe, N_("regexp frame"), "green", "green", "green" },
{ Color_ignore, N_("ignore"), "ignore", "black", "ignore" },
{ Color_ignore, 0, 0, 0, 0 }
};
for (int i = 0; items[i].guiname; ++i)
fill(items[i]);
}
/// initialise a color entry
void ColorSet::fill(ColorEntry const & entry)
{
Information in;
in.lyxname = entry.lyxname;
in.latexname = entry.latexname;
in.x11name = entry.x11name;
in.guiname = entry.guiname;
infotab[entry.lcolor] = in;
lyxcolors[entry.lyxname] = entry.lcolor;
latexcolors[entry.latexname] = entry.lcolor;
}
docstring const ColorSet::getGUIName(ColorCode c) const
{
InfoTab::const_iterator it = infotab.find(c);
if (it != infotab.end())
return _(it->second.guiname);
return from_ascii("none");
}
string const ColorSet::getX11Name(ColorCode c) const
{
InfoTab::const_iterator it = infotab.find(c);
if (it != infotab.end())
return it->second.x11name;
lyxerr << "LyX internal error: Missing color"
" entry in Color.cpp for " << c << '\n'
<< "Using black." << endl;
return "black";
}
string const ColorSet::getLaTeXName(ColorCode c) const
{
InfoTab::const_iterator it = infotab.find(c);
if (it != infotab.end())
return it->second.latexname;
return "black";
}
string const ColorSet::getLyXName(ColorCode c) const
{
InfoTab::const_iterator it = infotab.find(c);
if (it != infotab.end())
return it->second.lyxname;
return "black";
}
bool ColorSet::setColor(ColorCode col, string const & x11name)
{
InfoTab::iterator it = infotab.find(col);
if (it == infotab.end()) {
LYXERR0("Color " << col << " not found in database.");
return false;
}
// "inherit" is returned for colors not in the database
// (and anyway should not be redefined)
if (col == Color_none || col == Color_inherit || col == Color_ignore) {
LYXERR0("Color " << getLyXName(col) << " may not be redefined.");
return false;
}
it->second.x11name = x11name;
return true;
}
bool ColorSet::setColor(string const & lyxname, string const &x11name)
{
string const lcname = ascii_lowercase(lyxname);
if (lyxcolors.find(lcname) == lyxcolors.end()) {
LYXERR(Debug::GUI, "ColorSet::setColor: Unknown color \""
<< lyxname << '"');
addColor(static_cast<ColorCode>(infotab.size()), lcname);
}
return setColor(lyxcolors[lcname], x11name);
}
void ColorSet::addColor(ColorCode c, string const & lyxname)
{
ColorEntry ce = { c, "", "", "", lyxname.c_str() };
fill(ce);
}
ColorCode ColorSet::getFromLyXName(string const & lyxname) const
{
string const lcname = ascii_lowercase(lyxname);
Transform::const_iterator it = lyxcolors.find(lcname);
if (it == lyxcolors.end()) {
LYXERR0("ColorSet::getFromLyXName: Unknown color \""
<< lyxname << '"');
return Color_none;
}
return it->second;
}
ColorCode ColorSet::getFromLaTeXName(string const & latexname) const
{
Transform::const_iterator it = latexcolors.find(latexname);
if (it == latexcolors.end()) {
lyxerr << "ColorSet::getFromLaTeXName: Unknown color \""
<< latexname << '"' << endl;
return Color_none;
}
return it->second;
}
// The evil global Color instance
ColorSet lcolor;
// An equally evil global system Color instance
ColorSet system_lcolor;
} // namespace lyx