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Support for parsing basic CSS color keywords.

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This commit is contained in:
Thomas Geymayer
2013-05-31 19:18:36 +02:00
parent 83da4e9248
commit 8b3b71bce3
1 changed files with 34 additions and 1 deletions
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35
simgear/scene/util/parse_color.cxx
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@@ -23,6 +23,8 @@
#include <boost/lexical_cast.hpp>
#include <boost/tokenizer.hpp>
#include <map>
namespace simgear
{
@@ -81,7 +83,38 @@ namespace simgear
}
}
else
return false;
{
// Basic color keywords
// http://www.w3.org/TR/css3-color/#html4
typedef std::map<std::string, osg::Vec4> ColorMap;
static ColorMap colors;
if( colors.empty() )
{
colors["red" ] = osg::Vec4(1, 0, 0, 1);
colors["black" ] = osg::Vec4(0, 0, 0, 1);
colors["silver" ] = osg::Vec4(0.75, 0.75, 0.75, 1);
colors["gray" ] = osg::Vec4(0.5, 0.5, 0.5, 1);
colors["white" ] = osg::Vec4(1, 1, 1, 1);
colors["maroon" ] = osg::Vec4(0.5, 0, 0, 1);
colors["red" ] = osg::Vec4(1, 0, 0, 1);
colors["purple" ] = osg::Vec4(0.5, 0, 0.5, 1);
colors["fuchsia"] = osg::Vec4(1, 0, 1, 1);
colors["green" ] = osg::Vec4(0, 0.5, 0, 1);
colors["lime" ] = osg::Vec4(0, 1, 0, 1);
colors["olive" ] = osg::Vec4(0.5, 0.5, 0, 1);
colors["yellow" ] = osg::Vec4(1, 1, 0, 1);
colors["navy" ] = osg::Vec4(0, 0, 0.5, 1);
colors["blue" ] = osg::Vec4(0, 0, 1, 1);
colors["teal" ] = osg::Vec4(0, 0.5, 0.5, 1);
colors["aqua" ] = osg::Vec4(0, 1, 1, 1);
}
ColorMap::const_iterator it = colors.find(str);
if( it == colors.end() )
return false;
result = it->second;
return true;
}
result = color;
return true;