src/frontends/qt4/ColorCache.cpp

   1 /**
   2  * \file ColorCache.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author John Levon
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "ColorCache.h"
  14 #include "ColorSet.h"
  15
  16 namespace lyx {
  17
  18 void ColorCache::init()
  19 {
  20         for (int col = 0; col <= Color_ignore; ++col)
  21                 lcolors_[col] = QColor(lcolor.getX11Name(ColorCode(col)).c_str());
  22         initialized_ = true;
  23 }
  24
  25
  26 /// get the given color
  27 QColor ColorCache::get(Color color) const
  28 {
  29         if (!initialized_)
  30                 const_cast<ColorCache *>(this)->init();
  31         if (color <= Color_ignore && color.mergeColor == Color_ignore)
  32                 return lcolors_[color.baseColor];
  33         if (color.mergeColor != Color_ignore) {
  34                 // FIXME: This would ideally be done in the Color class, but
  35                 // that means that we'd have to use the Qt code in the core.
  36                 QColor base_color = get(color.baseColor).toRgb();
  37                 QColor merge_color = get(color.mergeColor).toRgb();
  38                 return QColor(
  39                         (base_color.red() + merge_color.red()) / 2,
  40                         (base_color.green() + merge_color.green()) / 2,
  41                         (base_color.blue() + merge_color.blue()) / 2);
  42         }
  43         // used by branches
  44         return QColor(lcolor.getX11Name(color.baseColor).c_str());
  45 }
  46
  47
  48 QColor const rgb2qcolor(RGBColor const & rgb)
  49 {
  50         return QColor(rgb.r, rgb.g, rgb.b);
  51 }
  52
  53
  54 } // namespace lyx