include/tmqt/dtTreeWidget.h

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/*********************************************************************
** Copyright (c) 2007 MAK Technologies, Inc.
** All rights reserved.
*********************************************************************/
/*********************************************************************
** $RCSfile: dtTreeWidget.h,v $ $Revision: 1.7 $ $State: Exp $
*********************************************************************/


#ifndef DTTREEWIDGET_H_
#define DTTREEWIDGET_H_

#include "tmqt/tmqtDefines.h"
#include "symbolMapper/modelKey.h"

#include <QtGui/QTreeWidget>
#include <QtGui/QKeyEvent>

class QMimeData;
class DtModelData;

class DT_DLL_tmqt DtTreeWidget : public QTreeWidget
{
   Q_OBJECT

public:
   DtTreeWidget(QWidget* parent);

   virtual QTreeWidgetItem* lastItem() const;

   QTreeWidgetItem* itemFromIndex(const QModelIndex& idx) { return QTreeWidget::itemFromIndex(idx); };

   QModelIndex indexFromItem(QTreeWidgetItem *item, int column = 0) const
   {
      return QTreeWidget::indexFromItem(item, column);
   }

   virtual int indexOfChild(QTreeWidgetItem*) const;

   unsigned int depth(QTreeWidgetItem*) const;

   QTreeWidgetItem* nextSibling(QTreeWidgetItem*) const;

   void setAllowEmptySelection(bool);

   bool allowEmptySelection() const;

signals:

   void mouseLeftPressed(QTreeWidgetItem*, QMouseEvent*, int col);

   void rightClickOnItem(QTreeWidgetItem*, QMouseEvent*, int col);

   void contentsMoving(int, int);

protected:

   virtual void mousePressEvent(QMouseEvent *event);

   virtual void mouseReleaseEvent(QMouseEvent *event);

   virtual void scrollContentsBy(int, int);

   virtual QSize sizeHint() const;

   virtual QItemSelectionModel::SelectionFlags selectionCommand(const QModelIndex &index,
                                                                 const QEvent *event = 0) const;

   virtual QItemSelectionModel::SelectionFlags selectionBehaviorFlags() const;

protected:

   bool myMouseRightClick;
   bool myAllowEmptySelection;
};

inline void DtTreeWidget::setAllowEmptySelection(bool b)
{
   myAllowEmptySelection = b;
}

inline bool DtTreeWidget::allowEmptySelection() const
{
   return myAllowEmptySelection;
}

#endif //OverlayListView_H