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85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/*
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Copyright (c) 2009 Stephen Kelly <steveire@gmail.com>
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This library is free software; you can redistribute it and/or modify it
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under the terms of the GNU Library General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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This library is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
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License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301, USA.
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*/
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#ifndef AKONADI_DRAGDROPMANAGER_P_H
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#define AKONADI_DRAGDROPMANAGER_P_H
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#include <QAbstractItemView>
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#include "akonadi/collection.h"
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namespace Akonadi
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{
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class DragDropManager
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{
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public:
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explicit DragDropManager(QAbstractItemView *view);
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/**
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* @returns True if the drop described in @p event is allowed.
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*/
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bool dropAllowed(QDragMoveEvent *event) const;
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/**
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* Process an attempted drop event.
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*
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* Attempts to show a popup menu with possible actions for @p event.
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*
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* @returns True if the event should be further processed, and false otherwise.
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*/
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bool processDropEvent(QDropEvent *event, bool &menuCanceled, bool dropOnItem = true);
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/**
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* Starts a drag if possible and sets the appropriate supported actions to allow moves.
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*
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* Also sets the pixmap for hte drag to something appropriately small, overriding the Qt
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* behaviour of creating a painting of all selected rows when dragging.
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*/
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void startDrag(Qt::DropActions supportedActions);
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/**
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* Sets whether to @p show the drop action menu on drop operation.
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*/
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void setShowDropActionMenu(bool show);
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/**
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* Returns whether the drop action menu is shown on drop operation.
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*/
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bool showDropActionMenu() const;
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bool isManualSortingActive() const;
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/**
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* Set true if we automatic sorting
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*/
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void setManualSortingActive(bool active);
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private:
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Collection currentDropTarget(QDropEvent *event) const;
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bool hasAncestor(const QModelIndex &index, Collection::Id parentId) const;
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bool mShowDropActionMenu;
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bool mIsManualSortingActive;
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QAbstractItemView *m_view;
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};
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}
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#endif
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