added ResourcesTreeModel, a QAbstractModelItem implementation for ResourcesDB

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1858 0778d3d1-df1d-0410-868b-ea421aaaa00d

include/resources_tree_model.h

@@ -0,0 +1,83 @@
+/*
+ * resources_tree_model.h - tree-model for ResourcesDB
+ *
+ * Copyright (c) 2008 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ * 
+ * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
+ *
+ * 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; 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 (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef _RESOURCES_TREE_MODEL_H
+#define _RESOURCES_TREE_MODEL_H
+
+#include <QtCore/QAbstractItemModel>
+
+#include "resources_db.h"
+
+
+class ResourcesTreeModel : public QAbstractItemModel
+{
+	Q_OBJECT
+public:
+	ResourcesTreeModel( ResourcesDB * _db, QObject * _parent = NULL );
+	virtual ~ResourcesTreeModel()
+	{
+	}
+
+	virtual QVariant data( const QModelIndex & _idx,
+                                        int _role = Qt::DisplayRole ) const;
+
+	virtual Qt::ItemFlags flags( const QModelIndex & _index ) const
+	{
+		return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+	}
+
+	int rowCount( const QModelIndex & _parent = QModelIndex() ) const;
+
+	virtual int columnCount( const QModelIndex & _parent =
+							QModelIndex() ) const
+	{
+		return 1;
+	}
+
+	virtual QModelIndex index( int _row, int _col,
+			const QModelIndex & _parent = QModelIndex() ) const;
+
+	virtual QModelIndex parent ( const QModelIndex & index ) const;
+
+	void setFilter( const QString & _s );
+
+
+private:
+	bool filterItems( ResourcesDB::TreeItem * _item,
+					const QModelIndex & _parent,
+						const QStringList & _keywords );
+	void setHidden( ResourcesDB::TreeItem * _item,
+				const QModelIndex & _parent,
+					bool _hidden,
+						bool _recursive = true );
+
+	ResourcesDB * m_db;
+
+
+signals:
+	void itemsChanged( void );
+
+} ;
+
+#endif