/* This file is part of Ganv.
 * Copyright 2007-2012 David Robillard <http://drobilla.net>
 *
 * Ganv 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 3 of the License, or any later version.
 *
 * Ganv 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 details.
 *
 * You should have received a copy of the GNU General Public License along
 * with Ganv.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef GANV_MODULE_HPP
#define GANV_MODULE_HPP

#include <string>
#include <vector>

#include <gtkmm/container.h>

#include "ganv/Canvas.hpp"
#include "ganv/Node.hpp"
#include "ganv/Port.hpp"
#include "ganv/module.h"

GANV_GLIB_WRAP(Module)

namespace Ganv {

class Canvas;

/** A rectangular Item which can hold a Port.
 *
 * @ingroup Ganv
 */
class Module : public Box
{
public:
	Module(Canvas&            canvas,
	       const std::string& name,
	       double             x                = 0,
	       double             y                = 0,
	       bool               show_title       = true)
		: Box(&canvas, GANV_BOX(
			      ganv_item_new(
				      GANV_ITEM(canvas.root()),
				      ganv_module_get_type(),
				      "x", x,
				      "y", y,
				      "can-tail", FALSE,
				      "can-head", FALSE,
				      "radius-tl", 4.0,
				      "radius-tr", 4.0,
				      "radius-br", 4.0,
				      "radius-bl", 4.0,
				      "border-width", 2.0,
				      "label", name.c_str(),
				      "draggable", TRUE,
				      NULL)))
	{}

	template<typename P, typename C>
	class iterator_base {
	public:
		iterator_base(GanvModule* m, guint i) : _module(m), _index(i) {}
		template<typename T, typename U>
		iterator_base(const iterator_base<T, U>& i)
			: _module(i._module)
			, _index(i._index)
		{}
		P* operator*() const {
			return Glib::wrap(ganv_module_get_port(_module, _index));
		}
		P* operator->() const {
			return Glib::wrap(ganv_module_get_port(_module, _index));
		}
		iterator_base operator++(int) const {
			return iterator_base<P, C>(_index + 1);
		}
		iterator_base& operator++() {
			++_index; return *this;
		}
		bool operator==(const iterator_base<P, C>& i) const {
			return _index == i._index;
		}
		bool operator!=(const iterator_base<P, C>& i) const {
			return _index != i._index;
		}
	private:
		template<typename T, typename U> friend class iterator_base;
		GanvModule* _module;
		guint       _index;
	};

	typedef iterator_base<Port, GanvPort>             iterator;
	typedef iterator_base<const Port, const GanvPort> const_iterator;

	iterator       begin()       { return iterator(gobj(), 0); }
	iterator       end()         { return iterator(gobj(), num_ports()); }
	iterator       back()        { return iterator(gobj(), num_ports() - 1); }
	const_iterator begin() const { return iterator(const_cast<GanvModule*>(gobj()), 0); }
	const_iterator end()   const { return iterator(const_cast<GanvModule*>(gobj()), num_ports()); }
	const_iterator back()  const { return iterator(const_cast<GanvModule*>(gobj()), num_ports() - 1); }

	void embed(Gtk::Widget* widget) {
		ganv_module_embed(gobj(), widget ? widget->gobj() : NULL);
	}

	Port* get_port(guint index) {
		return Glib::wrap(ganv_module_get_port(gobj(), index));
	}

	METHOD2(ganv_module, for_each_port, GanvPortFunc, f, void*, data);

	METHODRET0(ganv_module, guint, num_ports);

	RW_PROPERTY(gboolean, stacked)

	METHODRET0(ganv_module, double, get_empty_port_breadth)
	METHODRET0(ganv_module, double, get_empty_port_depth)

	GanvModule*       gobj()       { return GANV_MODULE(_gobj); }
	const GanvModule* gobj() const { return GANV_MODULE(_gobj); }
};

} // namespace Ganv

#endif // GANV_MODULE_HPP