/*
    Copyright (C) 2000 Paul Davis 

    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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include <cstdlib>
#include <cmath>
#include <vector>

#include <gtkmm.h>

#include <ardour/named_selection.h>
#include <ardour/session_selection.h>
#include <ardour/playlist.h>

#include <gtkmm2ext/stop_signal.h>

#include "editor.h"
#include "keyboard.h"
#include "selection.h"
#include "time_axis_view.h"
#include "ardour_ui.h"
#include "prompter.h"

#include "i18n.h"

using namespace sigc;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
using namespace Gtkmm2ext;

void
Editor::handle_new_named_selection ()
{
	ARDOUR_UI::instance()->call_slot (mem_fun(*this, &Editor::redisplay_named_selections));
}

void
Editor::add_named_selection_to_named_selection_display (NamedSelection& selection)
{
        TreeModel::Row row = *(named_selection_model->append());
	row[named_selection_columns.text] = selection.name;
	row[named_selection_columns.selection] = &selection;
}

void
Editor::redisplay_named_selections ()
{
	named_selection_model->clear ();
	session->foreach_named_selection (*this, &Editor::add_named_selection_to_named_selection_display);
}

bool
Editor::named_selection_display_key_release (GdkEventKey* ev)
{
	if (session == 0) {
		return true;
	}

	switch (ev->keyval) {
	case GDK_Delete:
		remove_selected_named_selections ();
		return true;
		break;
	default:
		return false;
		break;
	}

}

void
Editor::remove_selected_named_selections ()
{
	Glib::RefPtr<TreeSelection> selection = named_selection_display.get_selection();
	TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();

	if (selection->count_selected_rows() == 0) {
		return;
	}

	for (TreeView::Selection::ListHandle_Path::iterator i = rows.begin(); i != rows.end(); ++i) {

		TreeIter iter;

		if ((iter = named_selection_model->get_iter (*i))) {
			session->remove_named_selection ((*iter)[named_selection_columns.selection]);
		}
	}
}

bool
Editor::named_selection_display_button_release (GdkEventButton *ev)
{
	TreeModel::Children rows = named_selection_model->children();
	TreeModel::Children::iterator i;
	Glib::RefPtr<TreeSelection> selection = named_selection_display.get_selection();

	for (i = rows.begin(); i != rows.end(); ++i) {
	        if (selection->is_selected (i)) {
		        switch (ev->button) {
			case 1:
			        if (Keyboard::is_delete_event (ev)) {
				        session->remove_named_selection ((*i)[named_selection_columns.selection]);
					return true;
				}
				break;
			case 2:
			        break;
			case 3:
			        break;
			default:
			        break;
			}
		}
	}

	return false;
}


void
Editor::named_selection_display_selection_changed ()
{
}

void
Editor::create_named_selection ()
{
	string name;

	if (session == 0) {
		return;
	}

	/* check for a range-based selection */

	if (selection->time.empty()) {
		return;
	}
	
	TrackViewList *views = get_valid_views (selection->time.track, selection->time.group);

	if (views->empty()) {
		delete views;
		return;
	}

	boost::shared_ptr<Playlist>        what_we_found;
	list<boost::shared_ptr<Playlist> > thelist;

	for (TrackViewList::iterator i = views->begin(); i != views->end(); ++i) {
		
		boost::shared_ptr<Playlist> pl = (*i)->playlist();
		
		if (pl && (what_we_found = pl->copy (selection->time, false)) != 0) {
			thelist.push_back (what_we_found);
		}
	}

	if (!thelist.empty()) {

		ArdourPrompter p;
		
		p.set_prompt (_("Name for Chunk:"));
		p.add_button (Gtk::Stock::NEW, Gtk::RESPONSE_ACCEPT);
		p.set_response_sensitive (Gtk::RESPONSE_ACCEPT, false);
		p.change_labels (_("Create Chunk"), _("Forget it"));
		p.show_all ();
		
		switch (p.run ()) {
			
		case Gtk::RESPONSE_ACCEPT:
			p.get_result (name);
			if (name.empty()) {
				return;
			}	
			break;
		default:
			return;
		}

		new NamedSelection (name, thelist); // creation will add it to the model

		/* make the one we just added be selected */
		
		TreeModel::Children::iterator added = named_selection_model->children().end();
		--added;
		named_selection_display.get_selection()->select (*added);
	} else {
		error << _("No selectable material found in the currently selected time range") << endmsg;
	}
}