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/*
* OpenSCAD (www.openscad.at)
* Copyright (C) 2009 Clifford Wolf <clifford@clifford.at>
*
* 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 "csgnode.h"
#include "module.h"
#include "csgterm.h"
#include "builtin.h"
#include "printutils.h"
#include <sstream>
#include <assert.h>
class CsgModule : public AbstractModule
{
public:
csg_type_e type;
CsgModule(csg_type_e type) : type(type) { }
virtual AbstractNode *evaluate(const Context *ctx, const ModuleInstantiation *inst) const;
};
AbstractNode *CsgModule::evaluate(const Context*, const ModuleInstantiation *inst) const
{
CsgNode *node = new CsgNode(inst, type);
foreach (ModuleInstantiation *v, inst->children) {
AbstractNode *n = v->evaluate(inst->ctx);
if (n != NULL)
node->children.append(n);
}
return node;
}
std::string CsgNode::toString() const
{
std::stringstream stream;
switch (this->type) {
case CSG_TYPE_UNION:
stream << "union()";
break;
case CSG_TYPE_DIFFERENCE:
stream << "difference()";
break;
case CSG_TYPE_INTERSECTION:
stream << "intersection()";
break;
default:
assert(false);
}
return stream.str();
}
void register_builtin_csgops()
{
builtin_modules["union"] = new CsgModule(CSG_TYPE_UNION);
builtin_modules["difference"] = new CsgModule(CSG_TYPE_DIFFERENCE);
builtin_modules["intersection"] = new CsgModule(CSG_TYPE_INTERSECTION);
}
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