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src/qt/tools/designer/designer/listdnd.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 LISTDND_H
00028 #define LISTDND_H
00029 
00030 #include <qobject.h>
00031 #include <qscrollview.h>
00032 
00033 class ListDnd : public QObject
00034 {
00035     Q_OBJECT
00036 public:
00037     enum DragMode { None = 0, External = 1, Internal = 2, Both = 3, Move = 4, NullDrop = 8 };
00038     ListDnd( QScrollView * eventSource, const char * name = 0 );
00039     void setDragMode( int mode );
00040     int dragMode() const;
00041     bool eventFilter( QObject *, QEvent * event );
00042 
00043 protected:
00044     virtual bool dragEnterEvent( QDragEnterEvent * event );
00045     virtual bool dragLeaveEvent( QDragLeaveEvent * );
00046     virtual bool dragMoveEvent( QDragMoveEvent * event );
00047     virtual bool dropEvent( QDropEvent * event );
00048     virtual bool mousePressEvent( QMouseEvent * event );
00049     virtual bool mouseMoveEvent( QMouseEvent * event );
00050     virtual void updateLine( const QPoint & dragPos );
00051     virtual bool canDecode( QDragEnterEvent * event );
00052 
00053     QScrollView * src;
00054     QWidget * line;
00055     QPoint mousePressPos;
00056     QPoint dragPos;
00057     bool dragInside;
00058     bool dragDelete;
00059     bool dropConfirmed;
00060     int dMode;
00061 };
00062 
00063 #endif // LISTDND_H
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