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+/***************************************************************************
+ *
+ * Copyright (C) 2005 Elad Lahav (elad_lahav@users.sourceforge.net)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ***************************************************************************/
+
+#ifndef QUERYVIEWDRIVER_H
+#define QUERYVIEWDRIVER_H
+
+#include <qobject.h>
+#include <qlistview.h>
+#include "cscopefrontend.h"
+
+class QueryView;
+
+/**
+ * Executes a Cscope query and displays the results in a QueryView widget.
+ * This class is used in conjunction with QueryView to create a query
+ * display object. The driver uses the view widget to display result records
+ * of an executed query. It also uses the view as a parent widget for the
+ * query progress bar.
+ * @author Elad Lahav
+ */
+class QueryViewDriver : public QObject
+{
+	Q_OBJECT
+
+public:
+    QueryViewDriver(QueryView*, QObject* pParent = 0, const char* szName = 0);
+    ~QueryViewDriver();
+
+	void query(uint, const QString&, bool bCase, QListViewItem* pItem = NULL);
+	
+	/**
+	 * @return	true if a query is currently running, false otherwise
+	 */
+	bool isRunning() { return m_bRunning; }
+		
+private:
+	/** Cscope object for running queries. */
+	CscopeFrontend* m_pCscope;
+	
+	/** The view to which this object adds result records. */
+	QueryView* m_pView;
+	
+	/** QueryView item passed to addRecord(). */
+	QListViewItem* m_pItem;
+	
+	/** Displays query progress information. */
+	CscopeProgress m_progress;
+	
+	/** This flag is set to true when a query is executed, and back to false
+		when the the CscopeFrontend object emits the finished() signal. */
+	bool m_bRunning;
+	
+private slots:
+	void slotDataReady(FrontendToken*);
+	void slotFinished(uint);
+	void slotProgress(int, int);
+	void slotViewClosed();
+};
+
+#endif