| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). |
| ** All rights reserved. |
| ** Contact: Nokia Corporation (qt-info@nokia.com) |
| ** |
| ** This file is part of the Qt Designer of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** This file may be used under the terms of the GNU Lesser General Public |
| ** License version 2.1 as published by the Free Software Foundation and |
| ** appearing in the file LICENSE.LGPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU Lesser |
| ** General Public License version 2.1 requirements will be met: |
| ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
| ** |
| ** In addition, as a special exception, Nokia gives you certain additional |
| ** rights. These rights are described in the Nokia Qt LGPL Exception |
| ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU General |
| ** Public License version 3.0 as published by the Free Software Foundation |
| ** and appearing in the file LICENSE.GPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU General |
| ** Public License version 3.0 requirements will be met: |
| ** http://www.gnu.org/copyleft/gpl.html. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists for the convenience |
| // of Qt Designer. This header |
| // file may change from version to version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #ifndef QDESIGNER_DNDITEM_H |
| #define QDESIGNER_DNDITEM_H |
| |
| #include "shared_global_p.h" |
| #include <QtDesigner/abstractdnditem.h> |
| |
| #include <QtCore/QPoint> |
| #include <QtCore/QList> |
| #include <QtCore/QMimeData> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QDrag; |
| class QImage; |
| class QDropEvent; |
| |
| namespace qdesigner_internal { |
| |
| class QDESIGNER_SHARED_EXPORT QDesignerDnDItem: public QDesignerDnDItemInterface |
| { |
| public: |
| explicit QDesignerDnDItem(DropType type, QWidget *source = 0); |
| virtual ~QDesignerDnDItem(); |
| |
| virtual DomUI *domUi() const; |
| virtual QWidget *decoration() const; |
| virtual QWidget *widget() const; |
| virtual QPoint hotSpot() const; |
| virtual QWidget *source() const; |
| |
| virtual DropType type() const; |
| |
| protected: |
| void setDomUi(DomUI *dom_ui); |
| void init(DomUI *ui, QWidget *widget, QWidget *decoration, const QPoint &global_mouse_pos); |
| |
| private: |
| QWidget *m_source; |
| const DropType m_type; |
| const QPoint m_globalStartPos; |
| DomUI *m_dom_ui; |
| QWidget *m_widget; |
| QWidget *m_decoration; |
| QPoint m_hot_spot; |
| |
| Q_DISABLE_COPY(QDesignerDnDItem) |
| }; |
| |
| // Mime data for use with designer drag and drop operations. |
| |
| class QDESIGNER_SHARED_EXPORT QDesignerMimeData : public QMimeData { |
| Q_OBJECT |
| |
| public: |
| typedef QList<QDesignerDnDItemInterface *> QDesignerDnDItems; |
| |
| virtual ~QDesignerMimeData(); |
| |
| const QDesignerDnDItems &items() const { return m_items; } |
| |
| // Execute a drag and drop operation. |
| static Qt::DropAction execDrag(const QDesignerDnDItems &items, QWidget * dragSource); |
| |
| QPoint hotSpot() const { return m_hotSpot; } |
| |
| // Move the decoration. Required for drops over form windows as the position |
| // is derived from the decoration position. |
| void moveDecoration(const QPoint &globalPos) const; |
| |
| // For a move operation, create the undo command sequence to remove |
| // the widgets from the source form. |
| static void removeMovedWidgetsFromSourceForm(const QDesignerDnDItems &items); |
| |
| // Accept an event with the proper action. |
| void acceptEvent(QDropEvent *e) const; |
| |
| // Helper to accept an event with the desired action. |
| static void acceptEventWithAction(Qt::DropAction desiredAction, QDropEvent *e); |
| |
| private: |
| QDesignerMimeData(const QDesignerDnDItems &items, QDrag *drag); |
| Qt::DropAction proposedDropAction() const; |
| |
| static void setImageTransparency(QImage &image, int alpha); |
| |
| const QDesignerDnDItems m_items; |
| QPoint m_globalStartPos; |
| QPoint m_hotSpot; |
| }; |
| |
| } // namespace qdesigner_internal |
| |
| QT_END_NAMESPACE |
| |
| #endif // QDESIGNER_DNDITEM_H |