1 /*

     2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 *

     5 * This program is free software: you can redistribute it and/or modify

     6 * it under the terms of the GNU Lesser General Public License as published by

     7 * the Free Software Foundation, version 2.1 of the License.

     8 *

     9 * This program is distributed in the hope that it will be useful,

    10 * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12 * GNU Lesser General Public License for more details.

    13 *

    14 * You should have received a copy of the GNU Lesser General Public License

    15 * along with this program.  If not,

    16 * see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

    17 *

    18 * Description:

    19 *

    20 */

    21 

    22 #ifndef ScrollableViewBase_h

    23 #define ScrollableViewBase_h

    24 

    25 #include "Kinetics/KineticScrollable.h"

    26 

    27 #include <QGraphicsWidget>

    28 

    29 namespace GVA {

    30 

    31 class KineticScroller;

    32 

    33 class ScrollableViewBase : public QGraphicsWidget, public KineticScrollable {

    34 public:

    35     ScrollableViewBase(QGraphicsItem* parent = 0, Qt::WindowFlags wFlags = 0);

    36     ~ScrollableViewBase();

    37 

    38     void setWidget(QGraphicsWidget*);

    39 

    40 protected:

    41 

    42     //KineticScrollable pure virtuals

    43     QSize viewportSize() const;

    44     QPoint maximumScrollPosition() const ;

    45     QPoint scrollPosition() const;

    46     void setScrollPosition(const QPoint& pos, const QPoint& overshootDelta);

    47     void stateChanged(KineticScrollable::State oldState, KineticScrollable::State newState);

    48 

    49     QGraphicsWidget* scrollWidget() const { return m_scrollWidget; }

    50     virtual void setScrollWidgetGeometry(const QRectF& r);

    51     QRectF adjustScrollWidgetRect(const QRectF&);

    52 

    53     //Helpers for adjusting scroll pos

    54     void setScrollWidgetPos(const QPointF& pos);

    55     QPointF scrollWidgetPos() const;

    56 

    57 protected:

    58     KineticScroller* m_kineticScroller;

    59 

    60 private:

    61     QGraphicsWidget* m_scrollWidget;

    62     QPointF m_overShoot;

    63     QPointF m_extraPos;

    64 }; //ScrollableViewBase

    65 

    66 } //namespace GVA

    67 

    68 #endif //ScrollableViewBase_h