/* === S Y N F I G ========================================================= */
/*!	\file gtkmm/instance.h
**	\brief writeme
**
**	$Id: instance.h 336 2007-03-16 00:39:42Z dooglus $
**
**	\legal
**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**
**	This package 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 package 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.
**	\endlegal
*/
/* ========================================================================= */

/* === S T A R T =========================================================== */

#ifndef __SYNFIG_STUDIO_INSTANCE_H
#define __SYNFIG_STUDIO_INSTANCE_H

/* === H E A D E R S ======================================================= */

#include <ETL/handle>
#include <gtkmm/treeview.h>
#include <gtkmm/treestore.h>
#include <synfigapp/instance.h>
#include <sigc++/object.h>
#include <synfigapp/value_desc.h>
#include "historytreestore.h"
#include <synfig/canvas.h>

/* === M A C R O S ========================================================= */

/* === T Y P E D E F S ===================================================== */

/* === C L A S S E S & S T R U C T S ======================================= */

namespace Gtk { class Menu; class ActionGroup; };

namespace studio {

class CanvasView;


class Instance : public synfigapp::Instance
{
public:
	typedef std::list< etl::handle<CanvasView> > CanvasViewList;

	class CanvasTreeModel : public Gtk::TreeModel::ColumnRecord
	{
	public:
		Gtk::TreeModelColumn<Glib::RefPtr<Gdk::Pixbuf> > icon;
		Gtk::TreeModelColumn<Glib::ustring> label;
		Gtk::TreeModelColumn<Glib::ustring> name;
		Gtk::TreeModelColumn<Glib::ustring> id;

		Gtk::TreeModelColumn<synfig::Canvas::Handle> canvas;
		Gtk::TreeModelColumn<bool> is_canvas;

		Gtk::TreeModelColumn<synfig::ValueNode::Handle> value_node;
		Gtk::TreeModelColumn<bool> is_value_node;
		Gtk::TreeModelColumn<synfig::ValueBase> value;
		Gtk::TreeModelColumn<Glib::ustring> type;
		Gtk::TreeModelColumn<int> link_id;
		Gtk::TreeModelColumn<int> link_count;

		Gtk::TreeModelColumn<bool> is_editable;

		Gtk::TreeModelColumn<synfigapp::ValueDesc> value_desc;

		CanvasTreeModel()
		{
			add(value);
			add(name);
			add(label);
			add(icon);
			add(type);
			add(id);
			add(canvas);
			add(value_node);
			add(is_canvas);
			add(is_value_node);

			add(is_editable);
			add(value_desc);
			add(link_count);
			add(link_id);
		}
	} canvas_tree_model;

private:

	sigc::signal<void,CanvasView*> signal_canvas_view_created_;
	sigc::signal<void,CanvasView*> signal_canvas_view_deleted_;

	sigc::signal<void> signal_undo_redo_status_changed_;

	//! Tree containing the canvases -- used for the "canvas browser"
	Glib::RefPtr<Gtk::TreeStore> canvas_tree_store_;

	//! Tree containing the actions -- used for the "canvas browser"
	Glib::RefPtr<HistoryTreeStore> history_tree_store_;

	//! Instance number
	int	id_;

	//! Used to calculate instance ID
	static int instance_count_;

	//! List of canvas view windows
	CanvasViewList canvas_view_list_;

	bool undo_status_;
	bool redo_status_;

	void set_undo_status(bool x);
	void set_redo_status(bool x);

	static void _revert(Instance *);

protected:

	Instance(synfig::Canvas::Handle);

public:

	sigc::signal<void>& signal_undo_redo_status_changed() { return signal_undo_redo_status_changed_; }

	~Instance();

	sigc::signal<void,CanvasView*>& signal_canvas_view_created() { return signal_canvas_view_created_; }
	sigc::signal<void,CanvasView*>& signal_canvas_view_deleted() { return signal_canvas_view_deleted_; }

	bool get_undo_status()const { return undo_status_; }

	bool get_redo_status()const { return redo_status_; }

	int get_visible_canvases()const;

	Glib::RefPtr<Gtk::TreeStore> canvas_tree_store() { return canvas_tree_store_; }

	Glib::RefPtr<const Gtk::TreeStore> canvas_tree_store()const { return canvas_tree_store_; }

	Glib::RefPtr<HistoryTreeStore> history_tree_store() { return history_tree_store_; }

	Glib::RefPtr<const HistoryTreeStore> history_tree_store()const { return history_tree_store_; }

	//! Returns the number of instances that are currently open in the program
	static int get_count() { return instance_count_; }

	//etl::handle<synfig::Canvas> get_canvas()const { return synfigapp::Instance::get_canvas(); }

	etl::handle<CanvasView>	find_canvas_view(etl::handle<synfig::Canvas> canvas);

	//! Sets the focus to a specific canvas
	void focus(etl::handle<synfig::Canvas> canvas);

	CanvasViewList & canvas_view_list() { return canvas_view_list_; }

	const CanvasViewList & canvas_view_list()const { return canvas_view_list_; }

	bool save_as(const synfig::String &filename)const;

	bool save_as(const synfig::String &filename);

	//! Opens a "Save As" dialog, and then saves the composition to that file
	void dialog_save_as();

	bool save();

	void dialog_cvs_commit();

	void dialog_cvs_add();

	void dialog_cvs_update();

	void dialog_cvs_revert();

	//! Closes the instance of this composition
	void close();

	void revert();

	void update_all_titles();

	void refresh_canvas_tree();

	bool safe_revert();
	bool safe_close();

	void add_actions_to_menu(Gtk::Menu *menu,   const synfigapp::Action::ParamList &param_list, synfigapp::Action::Category category=synfigapp::Action::CATEGORY_ALL)const;
	void add_actions_to_menu(Gtk::Menu *menu, const synfigapp::Action::ParamList &param_list1,const synfigapp::Action::ParamList &param_list2, synfigapp::Action::Category category=synfigapp::Action::CATEGORY_ALL)const;

	void add_actions_to_group(const Glib::RefPtr<Gtk::ActionGroup>& action_group, synfig::String& ui_info,   const synfigapp::Action::ParamList &param_list, synfigapp::Action::Category category=synfigapp::Action::CATEGORY_ALL)const;

	void process_action(synfig::String name, synfigapp::Action::ParamList param_list);

	void make_param_menu(Gtk::Menu *menu,synfig::Canvas::Handle canvas, synfigapp::ValueDesc value_desc, float location=0.5f);

	void make_param_menu(Gtk::Menu *menu,synfig::Canvas::Handle canvas,const std::list<synfigapp::ValueDesc>& value_desc_list);


	static void edit_waypoint(synfigapp::ValueDesc value_desc,synfig::Waypoint waypoint);

private:
	void insert_canvas(Gtk::TreeRow row,synfig::Canvas::Handle canvas);

public:
	static etl::handle<Instance> create(synfig::Canvas::Handle canvas);
}; // END class Instance

}; // END namespace studio

/* === E N D =============================================================== */

#endif