1 /*

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

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 

    19 #ifndef __gva_scrollzoomwidget_h__

    20 #define __gva_scrollzoomwidget_h__

    21 

    22 #include "NativeChromeItem.h"

    23 

    24 class QTimeLine;

    25 

    26 namespace GVA {

    27 

    28   class GWebContentView;

    29 

    30   class ScrollZoomWidget : public NativeChromeItem

    31   {

    32     Q_OBJECT

    33   public:

    34     ScrollZoomWidget(ChromeSnippet* snippet, QGraphicsItem* parent = 0);

    35     virtual ~ScrollZoomWidget();

    36     void paint(QPainter* painter, const QStyleOptionGraphicsItem* opt, QWidget* widget);

    37     void mousePressEvent(QGraphicsSceneMouseEvent * ev);

    38     void mouseReleaseEvent(QGraphicsSceneMouseEvent * ev);

    39   public slots:

    40     void updateZoom(qreal delta);

    41     void updateScroll(qreal delta);

    42     void onLoadFinished(bool ok);

    43   protected:

    44     QVariant itemChange(GraphicsItemChange change, const QVariant & value);

    45   private:

    46     void zoom();

    47     void scroll();

    48     bool m_zoomIn;

    49     bool m_scrolling;

    50     qreal m_xScale;

    51     qreal m_yScale;

    52     qreal m_deltaX;

    53     qreal m_deltaY;

    54     qreal m_centerX;

    55     qreal m_centerY;

    56     QTimeLine * m_timeLine;

    57     GWebContentView * m_webView;

    58     QGraphicsEffect * m_effect;

    59     QImage m_buttonImage;

    60   };

    61 

    62 } // end of namespace GVA

    63 

    64 #endif // __GINEBRA_REDCHROMESNIPPET_H__