/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/

#include "modeldelegate.h"
#include <QApplication>
#include <QStyle>
#include <util/gui/util.h>
#include <interfaces/ijobholder.h>
#include <interfaces/structures.h>

namespace LC
{
namespace Summary
{
	namespace
	{
		bool DrawProgress (QPainter *painter,
				const QStyleOptionViewItem& option, const QModelIndex& index)
		{
			const auto& state = index.data (JobHolderRole::ProcessState).value<ProcessStateInfo> ();
			auto done = state.Done_;
			auto total = state.Total_;
			if (done < 0 || total <= 0)
				return false;

			while (done > 1000 && total > 1000)
			{
				done /= 10;
				total /= 10;
			}

			QStyleOptionProgressBar pbo;
			pbo.rect = option.rect;
			pbo.minimum = 0;
			pbo.maximum = total;
			pbo.progress = done;
			pbo.state = option.state;
			pbo.text = Util::ElideProgressBarText (index.data ().toString (), option);
			pbo.textVisible = true;
			QApplication::style ()->drawControl (QStyle::CE_ProgressBar, &pbo, painter);
			return true;
		}
	}

	void ModelDelegate::paint (QPainter *painter,
			const QStyleOptionViewItem& option, const QModelIndex& index) const
	{
		if (index.column () == JobHolderColumn::JobProgress)
		{
			auto rowRole = index.data (CustomDataRoles::RoleJobHolderRow).value<JobHolderRow> ();
			if ((rowRole == JobHolderRow::DownloadProgress ||
						rowRole == JobHolderRow::ProcessProgress) &&
					DrawProgress (painter, option, index))
				return;
		}

		QStyledItemDelegate::paint (painter, option, index);
	}
}
}
