// @@@ START COPYRIGHT @@@
//
// Licensed to the Apache Software Foundation (ASF) under one
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// to you under the Apache License, Version 2.0 (the
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// @@@ END COPYRIGHT @@@
#ifndef QUERYTREEVIEW_H
#define QUERYTREEVIEW_H

#include <QtGui>

#include <iostream>
using namespace std;

#include "CommonSqlCmpDbg.h"

namespace Ui
{
  class QueryTreeView;
}

/*By inherit QObject,
 *we can automatically delete objects hierarchy. */
typedef struct tagDFTDetails : public QObject
{
  ExprNode *currNode;
  CascadesPlan *currPlan;
} DFTDETAILS;

Q_DECLARE_METATYPE (tagDFTDetails *);	// This is for QTreeWidgetItem.setData()

class QueryTreeView:public QWidget
{
Q_OBJECT public:
    explicit QueryTreeView (QWidget * parent = 0);
  void UpdateView ();
   ~QueryTreeView ();
private:
    Ui::QueryTreeView * ui;
  void Free (void);
  void DisplayQueryTree (void *tree, void *plan =
			 NULL, QTreeWidgetItem * parentTreeItem = NULL);
  void GetOperatorImageText (void *tree, Int32 & bitmapIndex,
			     NAString & nodeText);
  void FillGroupAttribs (void *tree, void *plan, QTreeWidgetItem * treeItem);
  void FillExprType (void *tree, void *plan, QTreeWidgetItem * treeItem);
  void FillRowCost (void *tree, void *plan, QTreeWidgetItem * treeItem);
  private slots:
    //Display ContextMenu
  void on_m_tree_customContextMenuRequested (const QPoint & pos);
};

#endif // QUERYTREEVIEW_H