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/*
 * Copyright (c) 2010 Kevin Smith
 * Licensed under the GNU General Public License v3.
 * See Documentation/Licenses/GPLv3.txt for more information.
 */

#include "EventDelegate.h"

#include <QDebug>

#include "Swiften/Events/MessageEvent.h"
#include "Swiften/Events/ErrorEvent.h"
#include "Swiften/Events/SubscriptionRequestEvent.h"

namespace Swift {

EventDelegate::EventDelegate() : QStyledItemDelegate(), messageDelegate_(QtEvent::SenderRole, Qt::DisplayRole, false), subscriptionDelegate_(QtEvent::SenderRole, Qt::DisplayRole, true), errorDelegate_(QtEvent::SenderRole, Qt::DisplayRole, true) {

}

QSize EventDelegate::sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index ) const {
	QtEvent* item = static_cast<QtEvent*>(index.internalPointer());
	if (!item) {
		return QStyledItemDelegate::sizeHint(option, index);
	}
	switch (getEventType(item->getEvent())) {
	case MessageEventType: return messageDelegate_.sizeHint(option, item);
	case SubscriptionEventType: return subscriptionDelegate_.sizeHint(option, item);
	case ErrorEventType: return errorDelegate_.sizeHint(option, item);
	default: return QStyledItemDelegate::sizeHint(option, index);
	}
}

void EventDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const {
	QtEvent* item = static_cast<QtEvent*>(index.internalPointer());
	if (!item) {
		QStyledItemDelegate::paint(painter, option, index);
		return;
	}
	switch (getEventType(item->getEvent())) {
	case MessageEventType: messageDelegate_.paint(painter, option, item);break;
	case SubscriptionEventType: subscriptionDelegate_.paint(painter, option, item);break;
	case ErrorEventType: errorDelegate_.paint(painter, option, item);break;
	default: QStyledItemDelegate::paint(painter, option, index);
	}
}

EventType EventDelegate::getEventType(boost::shared_ptr<StanzaEvent> event) const {
	boost::shared_ptr<MessageEvent> messageEvent = boost::dynamic_pointer_cast<MessageEvent>(event);
	if (messageEvent) return MessageEventType;
	boost::shared_ptr<SubscriptionRequestEvent> subscriptionEvent = boost::dynamic_pointer_cast<SubscriptionRequestEvent>(event);
	if (subscriptionEvent) return SubscriptionEventType;
	boost::shared_ptr<ErrorEvent> errorEvent = boost::dynamic_pointer_cast<ErrorEvent>(event);
	if (errorEvent) return ErrorEventType;
	//I don't know what this is.
	assert(false);

}

}