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// K-3D
// Copyright (c) 1995-2004, Timothy M. Shead
//
// Contact: tshead@k-3d.com
//
// 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.
//
// 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
/** \file
\brief Implements helper functions for working with object properties
\author Tim Shead (tshead@k-3d.com)
*/
#include "idag.h"
#include "idocument.h"
#include "iobject.h"
#include "property.h"
namespace k3d
{
iproperty* get_property(iunknown& Object, const std::string& Name)
{
// If the object doesn't have properties, we're done ...
iproperty_collection* const property_collection = dynamic_cast<iproperty_collection*>(&Object);
if(!property_collection)
return 0;
// Get the object's properties ...
const iproperty_collection::properties_t properties(property_collection->properties());
// Look for a property with a matching name ...
for(iproperty_collection::properties_t::const_iterator property_iterator = properties.begin(); property_iterator != properties.end(); ++property_iterator)
{
// if the name matches, we're done ...
if((*property_iterator)->name() == Name)
return *property_iterator;
}
// No property by that name!
return 0;
}
boost::any get_property_value(idag& DAG, iproperty& Property)
{
// Found the property, try following dependencies ...
iproperty* property = &Property;
for(iproperty* dependency = DAG.dependency(*property); dependency; dependency = DAG.dependency(*property))
property = dependency;
return property->value();
}
boost::any get_property_value(iunknown& Object, const std::string& Name)
{
// Look for the property by name ...
iproperty* const property = get_property(Object, Name);
return property ? get_property_value(dynamic_cast<iobject*>(&Object)->document().dag(), *property) : boost::any();
}
boost::any get_internal_property_value(iunknown& Object, const std::string& Name)
{
// Look for the property by name ...
iproperty* const property = get_property(Object, Name);
if(!property)
return boost::any();
return property->value();
}
bool set_property_value(iproperty& Property, const boost::any& Value)
{
// If the property type doesn't match, we're done ...
if(Value.type() != Property.type())
return false;
// If the property is read-only, we're done ...
iwritable_property* const writable_property = dynamic_cast<iwritable_property*>(&Property);
if(!writable_property)
return false;
return writable_property->set_value(Value);
}
bool set_property_value(iunknown& Object, const std::string Name, const boost::any& Value)
{
// If the object isn't a property collection, we're done ...
iproperty_collection* const property_collection = dynamic_cast<iproperty_collection*>(&Object);
if(!property_collection)
return false;
// Look for a property with a matching name ...
const iproperty_collection::properties_t properties(property_collection->properties());
for(iproperty_collection::properties_t::const_iterator property = properties.begin(); property != properties.end(); ++property)
{
// Name doesn't match, so keep going ...
if((*property)->name() != Name)
continue;
// Success ...
return set_property_value(**property, Value);
}
// Couldn't find a property by that name!
return false;
}
} // namespace k3d
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