/*
   Copyright (C) 2008 - 2015 by Mark de Wever <koraq@xs4all.nl>
   Part of the Battle for Wesnoth Project http://www.wesnoth.org/

   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.

   See the COPYING file for more details.
*/

#define GETTEXT_DOMAIN "wesnoth-lib"

#include "gui/widgets/scroll_label.hpp"

#include "gui/widgets/label.hpp"
#include "gui/auxiliary/find_widget.tpp"
#include "gui/auxiliary/log.hpp"
#include "gui/auxiliary/widget_definition/scroll_label.hpp"
#include "gui/auxiliary/window_builder/scroll_label.hpp"
#include "gui/widgets/detail/register.tpp"
#include "gui/widgets/settings.hpp"
#include "gui/widgets/scrollbar.hpp"
#include "gui/widgets/spacer.hpp"
#include "gui/widgets/window.hpp"

#include <boost/bind.hpp>

#define LOG_SCOPE_HEADER get_control_type() + " [" + id() + "] " + __func__
#define LOG_HEADER LOG_SCOPE_HEADER + ':'

namespace gui2
{

REGISTER_WIDGET(scroll_label)

tscroll_label::tscroll_label() : tscrollbar_container(COUNT), state_(ENABLED)
{
	connect_signal<event::LEFT_BUTTON_DOWN>(
			boost::bind(
					&tscroll_label::signal_handler_left_button_down, this, _2),
			event::tdispatcher::back_pre_child);
}

void tscroll_label::set_label(const t_string& label)
{
	// Inherit.
	tcontrol::set_label(label);

	if(content_grid()) {
		tlabel* widget
				= find_widget<tlabel>(content_grid(), "_label", false, true);
		widget->set_label(label);

		content_resize_request();
	}
}

void tscroll_label::set_use_markup(bool use_markup)
{
	// Inherit.
	tcontrol::set_use_markup(use_markup);

	if(content_grid()) {
		tlabel* widget
				= find_widget<tlabel>(content_grid(), "_label", false, true);
		widget->set_use_markup(use_markup);
	}
}

void tscroll_label::set_self_active(const bool active)
{
	state_ = active ? ENABLED : DISABLED;
}

bool tscroll_label::get_active() const
{
	return state_ != DISABLED;
}

unsigned tscroll_label::get_state() const
{
	return state_;
}

void tscroll_label::finalize_subclass()
{
	assert(content_grid());
	tlabel* lbl = dynamic_cast<tlabel*>(content_grid()->find("_label", false));

	assert(lbl);
	lbl->set_label(label());

	/**
	 * @todo wrapping should be a label setting.
	 * This setting shoul be mutual exclusive with the horizontal scrollbar.
	 * Also the scroll_grid needs to set the status for the scrollbars.
	 */
	lbl->set_can_wrap(true);
}

const std::string& tscroll_label::get_control_type() const
{
	static const std::string type = "scroll_label";
	return type;
}

void tscroll_label::signal_handler_left_button_down(const event::tevent event)
{
	DBG_GUI_E << LOG_HEADER << ' ' << event << ".\n";

	get_window()->keyboard_capture(this);
}

} // namespace gui2