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0001 /* This file is part of the KDE project
0002    Copyright 2008 Stefan Nikolaus <stefan.nikolaus@kdemail.net>
0003 
0004    This library is free software; you can redistribute it and/or
0005    modify it under the terms of the GNU Library General Public
0006    License as published by the Free Software Foundation; either
0007    version 2 of the License, or (at your option) any later version.
0008 
0009    This library is distributed in the hope that it will be useful,
0010    but WITHOUT ANY WARRANTY; without even the implied warranty of
0011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0012    Library General Public License for more details.
0013 
0014    You should have received a copy of the GNU Library General Public License
0015    along with this library; see the file COPYING.LIB.  If not, write to
0016    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0017    Boston, MA 02110-1301, USA.
0018 */
0019 
0020 #ifndef CALLIGRA_SHEETS_DRAG_AND_DROP_STRATEGY
0021 #define CALLIGRA_SHEETS_DRAG_AND_DROP_STRATEGY
0022 
0023 #include "AbstractSelectionStrategy.h"
0024 #include "sheets_common_export.h"
0025 
0026 namespace Calligra
0027 {
0028 namespace Sheets
0029 {
0030 
0031 /**
0032  * A strategy for dragging cells.
0033  *
0034  * The drag starts, if the mouse leaves the cell, where the mouse press occurred.
0035  * If this cell is not left, the cell becomes selected.
0036  */
0037 class CALLIGRA_SHEETS_COMMON_EXPORT DragAndDropStrategy : public AbstractSelectionStrategy
0038 {
0039 public:
0040     /**
0041      * Constructor.
0042      */
0043     DragAndDropStrategy(CellToolBase *cellTool, const QPointF &position, Qt::KeyboardModifiers modifiers);
0044 
0045     /**
0046      * Destructor.
0047      */
0048     ~DragAndDropStrategy() override;
0049 
0050     void handleMouseMove(const QPointF& mouseLocation, Qt::KeyboardModifiers modifiers) override;
0051     KUndo2Command* createCommand() override;
0052 
0053     bool dragStarted() const;
0054 
0055 private:
0056     class Private;
0057     Private * const d;
0058 };
0059 
0060 } // namespace Sheets
0061 } // namespace Calligra
0062 
0063 #endif // CALLIGRA_SHEETS_DRAG_AND_DROP_STRATEGY