1 /***************************************************************************
2 * Copyright (C) 2008 by Marco Gittler (g.marco@freenet.de) *
3 * Copyright (C) 2008 by Jean-Baptiste Mardelle (jb@kdenlive.org) *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
19 ***************************************************************************/
21 #ifndef ABSTRACTGROUPITEM
22 #define ABSTRACTGROUPITEM
24 #include "definitions.h"
27 #include <QGraphicsItemGroup>
28 #include <QGraphicsSceneMouseEvent>
30 class CustomTrackScene;
31 class QGraphicsSceneMouseEvent;
33 class AbstractGroupItem : public QObject , public QGraphicsItemGroup
37 AbstractGroupItem(double fps);
38 virtual int type() const;
39 CustomTrackScene* projectScene();
40 void addItem(QGraphicsItem * item);
42 QPainterPath clipGroupShape(QPointF offset) const;
43 QPainterPath transitionGroupShape(QPointF offset) const;
44 void setItemLocked(bool locked);
45 bool isItemLocked() const;
46 // ItemInfo info() const;
48 /** @brief Resizes all clips in this group from start.
49 *@param diff Difference to startPos stored in m_resizeInfos */
50 void resizeStart(int diff);
51 /** @brief Resizes all clips in this group from end.
52 * @param diff Difference to endPos stored in m_resizeInfos */
53 void resizeEnd(int diff);
54 /** @brief Gets m_resizeInfos */
55 QList <ItemInfo> resizeInfos();
56 /** @brief Clears m_resizeInfos */
57 void clearResizeInfos();
59 /** @brief Gets the duration (length) of the group. */
63 virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value);
64 virtual void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *);
65 virtual void dragEnterEvent(QGraphicsSceneDragDropEvent *event);
66 virtual void dragLeaveEvent(QGraphicsSceneDragDropEvent *event);
67 virtual void dropEvent(QGraphicsSceneDragDropEvent *event);
68 virtual void mousePressEvent(QGraphicsSceneMouseEvent * event);
72 QPainterPath groupShape(GRAPHICSRECTITEM type, QPointF offset) const;
73 /** Stores the original info of the items beeing resized. */
74 QList <ItemInfo> m_resizeInfos;