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/*
* OpenSCAD (www.openscad.org)
* Copyright (C) 2009-2011 Clifford Wolf <clifford@clifford.at> and
* Marius Kintel <marius@kintel.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* As a special exception, you have permission to link this program
* with the CGAL library and distribute executables, as long as you
* follow the requirements of the GNU GPL in regard to all of the
* software in the executable aside from CGAL.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "colornode.h"
#include "module.h"
#include "evalcontext.h"
#include "builtin.h"
#include "printutils.h"
#include <sstream>
#include <assert.h>
#include <boost/algorithm/string/case_conv.hpp>
#include <boost/assign/std/vector.hpp>
#include <boost/assign/list_of.hpp>
using namespace boost::assign; // bring 'operator+=()' into scope
class ColorModule : public AbstractModule
{
public:
ColorModule() { }
virtual AbstractNode *instantiate(const Context *ctx, const ModuleInstantiation *inst, const EvalContext *evalctx) const;
private:
static boost::unordered_map<std::string, Color4f> colormap;
};
#include "colormap.h"
AbstractNode *ColorModule::instantiate(const Context *ctx, const ModuleInstantiation *inst, const EvalContext *evalctx) const
{
ColorNode *node = new ColorNode(inst);
node->color[0] = node->color[1] = node->color[2] = -1.0;
node->color[3] = 1.0;
AssignmentList args;
args += Assignment("c", NULL), Assignment("alpha", NULL);
Context c(ctx);
c.setVariables(args, evalctx);
Value v = c.lookup_variable("c");
if (v.type() == Value::VECTOR) {
for (size_t i = 0; i < 4; i++) {
node->color[i] = i < v.toVector().size() ? v.toVector()[i].toDouble() : 1.0;
if (node->color[i] > 1)
PRINTB_NOCACHE("WARNING: color() expects numbers between 0.0 and 1.0. Value of %.1f is too large.", node->color[i]);
}
} else if (v.type() == Value::STRING) {
std::string colorname = v.toString();
boost::algorithm::to_lower(colorname);
Color4f color;
if (colormap.find(colorname) != colormap.end()) {
color = colormap[colorname];
node->color[0] = color[0];
node->color[1] = color[1];
node->color[2] = color[2];
} else {
PRINTB_NOCACHE("WARNING: Color name \"%s\" unknown. Please see", colorname);
PRINT_NOCACHE("WARNING: http://en.wikipedia.org/wiki/Web_colors");
}
}
Value alpha = c.lookup_variable("alpha");
if (alpha.type() == Value::NUMBER) {
node->color[3] = alpha.toDouble();
}
std::vector<AbstractNode *> instantiatednodes = inst->instantiateChildren(evalctx);
node->children.insert(node->children.end(), instantiatednodes.begin(), instantiatednodes.end());
return node;
}
std::string ColorNode::toString() const
{
std::stringstream stream;
stream << "color([" << this->color[0] << ", " << this->color[1] << ", " << this->color[2] << ", " << this->color[3] << "])";
return stream.str();
}
std::string ColorNode::name() const
{
return "color";
}
void register_builtin_color()
{
Builtins::init("color", new ColorModule());
}
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