YQTree.h

/*
  Copyright (C) 2000-2012 Novell, Inc
  This library is free software; you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as
  published by the Free Software Foundation; either version 2.1 of the
  License, or (at your option) version 3.0 of the License. This library
  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 Lesser General Public
  License for more details. You should have received a copy of the GNU
  Lesser General Public License along with this library; if not, write
  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
  Floor, Boston, MA 02110-1301 USA
*/


/*-/

  File:       YQTree.h

  Author:     Stefan Hundhammer <shundhammer@suse.de>

/-*/

#ifndef YQTree_h
#define YQTree_h

#include <QFrame>
#include <QTreeWidget>

#include <yui/YTree.h>


class YQWidgetCaption;
class YQTreeItem;


class YQTree : public QFrame, public YTree
{
    Q_OBJECT

public:

    YQTree( YWidget *           parent,
            const std::string & label,
            bool                multiSelection,
            bool                recursiveSelection );

    virtual ~YQTree();

    virtual void setLabel( const std::string & label );

    virtual void rebuildTree();

    virtual void selectItem( YItem * item, bool selected = true );

    virtual void deselectAllItems();

    virtual void deleteAllItems();


    virtual void setEnabled( bool enabled );

    virtual int preferredWidth();

    virtual int preferredHeight();

    virtual void setSize( int newWidth, int newHeight );

    virtual bool setKeyboardFocus();


    virtual YTreeItem * currentItem();
    
    virtual void activate();


protected slots:



    void slotSelectionChanged();

    void slotItemChanged( QTreeWidgetItem * item);
    void slotItemClicked( QTreeWidgetItem * item, int column );

    void slotActivated( QTreeWidgetItem * item);

    void slotItemExpanded( QTreeWidgetItem * item );

    void slotItemCollapsed( QTreeWidgetItem * item );

    void slotContextMenu ( const QPoint & pos );


protected:

    void selectItem( YQTreeItem * item );

    void selectItem(QTreeWidgetItem * item, bool selected, bool recursive);

    void openBranch( YQTreeItem * item );

    void buildDisplayTree( YQTreeItem *     parentItem,
               YItemIterator    begin,
               YItemIterator    end );

    //
    // Data members
    //

    YQWidgetCaption *   _caption;
    QTreeWidget *   _qt_treeWidget;
    int         _nextSerialNo;
};


class YQTreeItem: public QTreeWidgetItem
{
public:

    YQTreeItem( YQTree  *   tree,
        QTreeWidget *   parent,
        YTreeItem * origItem,
        int     serial  );

    YQTreeItem( YQTree  *   tree,
        YQTreeItem *    parent,
        YTreeItem * origItem,
        int     serial  );

    YTreeItem * origItem() { return _origItem; }

    virtual void setOpen( bool open );


private:

    void init( YQTree *     tree,
           YTreeItem *  yTreeItem,
           int      serial );


protected:

    QString key( int column, bool ascending ) const;


    //
    // Data members
    //

    YQTree *    _tree;
    YTreeItem * _origItem;
    int     _serialNo;

};


#endif // ifndef YQTree_h