Eneboo - Documentación para desarrolladores: Fichero Fuente src/qt/tools/designer/designer/listviewdnd.h

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00001 /**********************************************************************
00002 ** Copyright (C) 2005-2007 Trolltech ASA.  All rights reserved.
00003 **
00004 ** This file is part of Qt Designer.
00005 **
00006 ** This file may be distributed and/or modified under the terms of the
00007 ** GNU General Public License version 2 as published by the Free Software
00008 ** Foundation and appearing in the file LICENSE.GPL included in the
00009 ** packaging of this file.
00010 **
00011 ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
00012 ** licenses may use this file in accordance with the Qt Commercial License
00013 ** Agreement provided with the Software.
00014 **
00015 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00016 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00017 **
00018 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
00019 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
00020 **   information about Qt Commercial License Agreements.
00021 **
00022 ** Contact info@trolltech.com if any conditions of this licensing are
00023 ** not clear to you.
00024 **
00025 **********************************************************************/
00026 
00027 #ifndef LISTVIEWDND_H
00028 #define LISTVIEWDND_H
00029 
00030 #include <qptrlist.h>
00031 #include <qlistview.h>
00032 #include "listdnd.h"
00033 
00034 class QWidget;
00035 class QListView;
00036 typedef QPtrList<QListViewItem> ListViewItemList;
00037 
00038 class ListViewDnd : public ListDnd
00039 {
00040     Q_OBJECT
00041 public:
00042     enum DragMode { Flat = 16 }; // see ListDnd::DragMode
00043 
00044     ListViewDnd( QListView * eventSource, const char * name = 0 );
00045 
00046 signals:
00047     void dropped( QListViewItem * );
00048 
00049 public slots:
00050     void confirmDrop( QListViewItem * );
00051 
00052 protected:
00053     virtual bool dropEvent( QDropEvent * event );
00054     virtual bool mouseMoveEvent( QMouseEvent * event );
00055     virtual void updateLine( const QPoint & pos );
00056     virtual bool canDecode( QDragEnterEvent * event );
00057 private:
00058     QListViewItem * itemAt( QPoint pos );
00059     int dropDepth( QListViewItem * item, QPoint pos );
00060     int buildFlatList( ListViewItemList & list );
00061     int buildTreeList( ListViewItemList & list );
00062     void setVisibleItems( bool b );
00063     ListViewItemList disabledItems;
00064 };
00065 
00066 #endif //LISTVIEWDND_H