/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2011  Georg Rudoy
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 **********************************************************************/

#ifndef PLUGINS_LACKMAN_PACKAGESDELEGATE_H
#define PLUGINS_LACKMAN_PACKAGESDELEGATE_H
#include <QStyledItemDelegate>
#include <QPointer>
#include <QHash>
#include <util/selectablebrowser.h>

class QTreeView;
class QToolButton;

namespace LeechCraft
{
namespace LackMan
{
	class PackagesModel;

	class PackagesDelegate : public QStyledItemDelegate
	{
		Q_OBJECT

		static const int CPadding;
		static const int CIconSize;
		static const int CActionsSize;
		static const int CTitleSizeDelta;
		static const int CNumLines;

		mutable QModelIndex CurrentSelection_;
		mutable QHash<int, QToolButton*> Row2InstallRemove_;
		mutable QHash<int, QToolButton*> Row2Update_;
		mutable QHash<int, QWidget*> Row2Layout_;
		mutable QHash<QModelIndex, bool> WasInstalled_;
		mutable QHash<QModelIndex, bool> WasUpgradable_;

		QWidget * const Viewport_;
		QAbstractItemModel * const Model_;
	public:
		PackagesDelegate (QTreeView* = 0);

		void paint (QPainter*, const QStyleOptionViewItem&, const QModelIndex&) const;
		QSize sizeHint (const QStyleOptionViewItem&, const QModelIndex&) const;
	private:
		int TitleHeight (const QStyleOptionViewItem&) const;
		int TextHeight (const QStyleOptionViewItem&) const;
		QToolButton* GetInstallRemove (const QModelIndex&) const;
		QToolButton* GetUpdate (const QModelIndex&) const;
		QWidget* GetLayout (const QModelIndex&) const;
	public slots:
		void handleRowChanged (const QModelIndex&, const QModelIndex&);
		void invalidateWidgetPositions ();
		void hideOverflousActions (const QModelIndex&, int, int);
	private slots:
		void handleAction ();
		void handleRowActionFinished (int);
		void handlePackageUpdateToggled (int, bool);
	};
}
}

#endif
