src/Color.h

   1 // -*- C++ -*-
   2 /**
   3  * \file Color.h
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Asger Alstrup
   8  * \author Lars Gullik Bjønnes
   9  * \author Matthias Ettrich
  10  * \author Jean-Marc Lasgouttes
  11  * \author Angus Leeming
  12  * \author John Levon
  13  * \author André Pönitz
  14  * \author Martin Vermeer
  15  *
  16  * Full author contact details are available in file CREDITS.
  17  */
  18
  19 #ifndef LCOLOR_H
  20 #define LCOLOR_H
  21
  22 #include "support/docstring.h"
  23
  24 #include <boost/scoped_ptr.hpp>
  25
  26
  27 namespace lyx {
  28
  29 /**
  30  * This is a stateless class.
  31  *
  32  * It has one basic purposes:
  33  * To serve as a color-namespace container (the Color enum).
  34  */
  35 /**
  36  * \class Color
  37  *
  38  * A class holding color definitions and associated names for
  39  * LaTeX, X11, the GUI, and LyX internally.
  40  *
  41  * A color can be one of the following kinds:
  42  *
  43  * - A real, predefined color, such as black, white, red or green.
  44  * - A logical color, such as no color, inherit, math
  45  */
  46
  47 class Color
  48 // made copyable for same reasons as LyXRC was made copyable. See there for
  49 // explanation.
  50 {
  51 public:
  52         /// Names of colors, including all logical colors
  53         enum color {
  54                 /// No particular color---clear or default
  55                 none,
  56                 /// The different text colors
  57                 black,
  58                 ///
  59                 white,
  60                 ///
  61                 red,
  62                 ///
  63                 green,
  64                 ///
  65                 blue,
  66                 ///
  67                 cyan,
  68                 ///
  69                 magenta,
  70                 ///
  71                 yellow,
  72
  73                 // Needed interface colors
  74
  75                 /// Cursor color
  76                 cursor,
  77                 /// Background color
  78                 background,
  79                 /// Foreground color
  80                 foreground,
  81                 /// Background color of selected text
  82                 selection,
  83                 /// Text color in LaTeX mode
  84                 latex,
  85                 /// The color used for previews
  86                 preview,
  87
  88                 /// Text color for notes
  89                 note,
  90                 /// Background color of notes
  91                 notebg,
  92                 /// Text color for comments
  93                 comment,
  94                 /// Background color of comments
  95                 commentbg,
  96                 /// Text color for greyedout inset
  97                 greyedout,
  98                 /// Background color of greyedout inset
  99                 greyedoutbg,
 100                 /// Shaded box background
 101                 shadedbg,
 102
 103                 /// Color for the depth bars in the margin
 104                 depthbar,
 105                 /// Color for marking foreign language words
 106                 language,
 107
 108                 /// Text color for command insets
 109                 command,
 110                 /// Background color for command insets
 111                 commandbg,
 112                 /// Frame color for command insets
 113                 commandframe,
 114
 115                 /// Special chars text color
 116                 special,
 117
 118                 /// Graphics inset background color
 119                 graphicsbg,
 120                 /// Math inset text color
 121                 math,
 122                 /// Math inset background color
 123                 mathbg,
 124                 /// Macro math inset background color
 125                 mathmacrobg,
 126                 /// Math inset frame color under focus
 127                 mathframe,
 128                 /// Math inset frame color not under focus
 129                 mathcorners,
 130                 /// Math line color
 131                 mathline,
 132
 133                 /// caption frame color
 134                 captionframe,
 135
 136                 /// collapsable insets text
 137                 collapsable,
 138                 /// collapsable insets frame
 139                 collapsableframe,
 140
 141                 /// Inset marker background color
 142                 insetbg,
 143                 /// Inset marker frame color
 144                 insetframe,
 145
 146                 /// Error box text color
 147                 error,
 148                 /// EOL marker color
 149                 eolmarker,
 150                 /// Added space colour
 151                 added_space,
 152                 /// Appendix marker color
 153                 appendix,
 154                 /// changebar color
 155                 changebar,
 156                 /// deleted text color
 157                 deletedtext,
 158                 /// added text color
 159                 addedtext,
 160                 /// Top and bottom line color
 161                 topline,
 162                 /// Table line color
 163                 tabularline,
 164                 /// Table line color
 165                 tabularonoffline,
 166                 /// Bottom area color
 167                 bottomarea,
 168                 /// Page break color
 169                 pagebreak,
 170
 171                 // FIXME: why are the next four separate ??
 172                 /// Color used for button frame
 173                 buttonframe,
 174                 /// Color used for bottom background
 175                 buttonbg,
 176                 /// Color used for buttom under focus
 177                 buttonhoverbg,
 178
 179                 // Logical attributes
 180
 181                 /// Color is inherited
 182                 inherit,
 183                 /// For ignoring updates of a color
 184                 ignore
 185         };
 186
 187
 188         ///
 189         Color();
 190         ///
 191         Color(Color const &);
 192         ///
 193         ~Color();
 194         ///
 195         Color & operator=(Color);
 196
 197         /** set the given LyX color to the color defined by the X11 name given
 198          *  \returns true if successful.
 199          */
 200         bool setColor(Color::color col, std::string const & x11name);
 201
 202         /** set the given LyX color to the color defined by the X11
 203          *  name given \returns true if successful. A new color entry
 204          *  is created if the color is unknown
 205          */
 206         bool setColor(std::string const & lyxname, std::string const & x11name);
 207
 208         /// Get the GUI name of \c color.
 209         docstring const getGUIName(Color::color c) const;
 210
 211         /// Get the X11 name of \c color.
 212         std::string const getX11Name(Color::color c) const;
 213
 214         /// Get the LaTeX name of \c color.
 215         std::string const getLaTeXName(Color::color c) const;
 216
 217         /// Get the LyX name of \c color.
 218         std::string const getLyXName(Color::color c) const;
 219
 220         /// \returns the Color::color associated with the LyX name.
 221         Color::color getFromLyXName(std::string const & lyxname) const;
 222         /// \returns the Color::color associated with the LaTeX name.
 223         Color::color getFromLaTeXName(std::string const & latexname) const;
 224 private:
 225         ///
 226         void addColor(Color::color c, std::string const & lyxname) const;
 227         ///
 228         class Pimpl;
 229         ///
 230         boost::scoped_ptr<Pimpl> pimpl_;
 231 };
 232
 233
 234 /** \c Color_color is a wrapper for Color::color. It can be forward-declared and
 235  *  passed as a function argument without having to expose Color.h.
 236  */
 237 class Color_color {
 238         Color::color val_;
 239 public:
 240         /** The default constructor is nasty,
 241          *  but allows us to use Color_color in STL containers.
 242          */
 243         Color_color() : val_(static_cast<Color::color>(-1)) {}
 244
 245         Color_color(Color::color val) : val_(val) {}
 246         operator Color::color() const{ return val_; }
 247 };
 248
 249
 250 /// the current color definitions
 251 extern Color lcolor;
 252 /// the system color definitions
 253 extern Color system_lcolor;
 254
 255
 256 struct RGBColor {
 257         unsigned int r;
 258         unsigned int g;
 259         unsigned int b;
 260         RGBColor() : r(0), g(0), b(0) {}
 261         RGBColor(unsigned int red, unsigned int green, unsigned int blue)
 262                 : r(red), g(green), b(blue) {}
 263         /// \param x11hexname is of the form "#ffa071"
 264         RGBColor(std::string const & x11hexname);
 265 };
 266
 267 inline
 268 bool operator==(RGBColor const & c1, RGBColor const & c2)
 269 {
 270         return (c1.r == c2.r && c1.g == c2.g && c1.b == c2.b);
 271 }
 272
 273
 274 inline
 275 bool operator!=(RGBColor const & c1, RGBColor const & c2)
 276 {
 277         return !(c1 == c2);
 278 }
 279
 280 /// returns a string of form #rrggbb, given an RGBColor struct
 281 std::string const X11hexname(RGBColor const & col);
 282
 283 } // namespace lyx
 284
 285 #endif