/*********
*
* This file is part of BibleTime's source code, http://www.bibletime.info/.
*
* Copyright 1999-2008 by the BibleTime developers.
* The BibleTime source code is licensed under the GNU General Public License version 2.0.
*
**********/

#include "cbiblekeychooser.h"

#include "../bthistory.h"
#include "ckeyreferencewidget.h"
#include "../cscrollbutton.h"

#include "backend/keys/cswordversekey.h"
#include "backend/drivers/cswordbiblemoduleinfo.h"
#include "backend/drivers/cswordmoduleinfo.h"

#include "util/cresmgr.h"

#include <QHBoxLayout>
#include <QDebug>


CBibleKeyChooser::CBibleKeyChooser(QList<CSwordModuleInfo*> modules, CSwordKey *key, QWidget *parent) : 
	CKeyChooser(modules, key, parent),
	m_key(dynamic_cast<CSwordVerseKey*>(key)) 
{
	w_ref = 0;
	setModules(modules, false);
	if (!m_modules.count()) {
		qWarning() << "CBibleKeyChooser: module is not a Bible or commentary!";
		m_key = 0;
		return;
	}
	QHBoxLayout* layout = new QHBoxLayout(this);
	layout->setSpacing(0);
	layout->setContentsMargins(0,0,0,0);
	layout->setDirection( QBoxLayout::LeftToRight );

	w_ref = new CKeyReferenceWidget(dynamic_cast<CSwordBibleModuleInfo*>(m_modules.first()), m_key, this);
	layout->addWidget(w_ref);

	connect(w_ref,SIGNAL(changed(CSwordVerseKey *)),SLOT(refChanged(CSwordVerseKey *)));

	setKey(m_key); //set the key without changing it, setKey(key()) would change it

	connect(this, SIGNAL(keyChanged(CSwordKey*)), history(), SLOT(add(CSwordKey*)) );
}

CSwordKey* CBibleKeyChooser::key() {
	return m_key;
}

void CBibleKeyChooser::setKey(CSwordKey* key)
{
	Q_ASSERT(dynamic_cast<CSwordVerseKey*>(key));
	if (dynamic_cast<CSwordVerseKey*>(key) == 0) return;

	emit (beforeKeyChange(m_key->key())); //required to make direct setKey calls work from the outside
	m_key = dynamic_cast<CSwordVerseKey*>(key);
	w_ref->setKey(m_key);
	emit keyChanged(m_key);
}

void CBibleKeyChooser::refChanged(CSwordVerseKey* key)
{
	Q_ASSERT(m_key);
	Q_ASSERT(key);

	if (!updatesEnabled()) return;

	setUpdatesEnabled(false);
	if (m_key) emit beforeKeyChange(m_key->key());
	m_key = key;
	emit keyChanged(m_key);

	setUpdatesEnabled(true);
}

void CBibleKeyChooser::setModules(const QList<CSwordModuleInfo*>& modules, const bool refresh) {
	m_modules.clear();

	foreach (CSwordModuleInfo* mod, modules) {
		if (mod->type() == CSwordModuleInfo::Bible || mod->type() == CSwordModuleInfo::Commentary) {
			if (CSwordBibleModuleInfo* bible = dynamic_cast<CSwordBibleModuleInfo*>(mod)) m_modules.append(bible);
		}
	}

	// First time this is called we havnt set up w_ref.
	if (w_ref) w_ref->setModule(dynamic_cast<CSwordBibleModuleInfo*>(m_modules.first()));
	if (refresh) refreshContent();
}

void CBibleKeyChooser::refreshContent() {
	setKey(m_key);
}

void CBibleKeyChooser::updateKey(CSwordKey* /*key*/) {}

void CBibleKeyChooser::adjustFont() {}

void CBibleKeyChooser::setKey(QString& newKey)
{
	m_key->key(newKey);
	setKey(m_key);
}