1 /*

     2  * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies)

     3  * Copyright (C) 2009 Girish Ramakrishnan <girish@forwardbias.in>

     4  * Copyright (C) 2006 George Staikos <staikos@kde.org>

     5  * Copyright (C) 2006 Dirk Mueller <mueller@kde.org>

     6  * Copyright (C) 2006 Zack Rusin <zack@kde.org>

     7  * Copyright (C) 2006 Simon Hausmann <hausmann@kde.org>

     8  *

     9  * All rights reserved.

    10  *

    11  * Redistribution and use in source and binary forms, with or without

    12  * modification, are permitted provided that the following conditions

    13  * are met:

    14  * 1. Redistributions of source code must retain the above copyright

    15  *    notice, this list of conditions and the following disclaimer.

    16  * 2. Redistributions in binary form must reproduce the above copyright

    17  *    notice, this list of conditions and the following disclaimer in the

    18  *    documentation and/or other materials provided with the distribution.

    19  *

    20  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

    21  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

    24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

    28  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    31  */

    32 

    33 #ifndef webview_h

    34 #define webview_h

    35 

    36 #include "fpstimer.h"

    37 #include "webpage.h"

    38 #include <qwebview.h>

    39 #include <qgraphicswebview.h>

    40 #include <QGraphicsView>

    41 #include <QGraphicsWidget>

    42 #include <QTime>

    43 

    44 class WebViewTraditional : public QWebView {

    45     Q_OBJECT

    46 

    47 public:

    48     WebViewTraditional(QWidget* parent) : QWebView(parent) {}

    49 

    50 protected:

    51     virtual void contextMenuEvent(QContextMenuEvent*);

    52     virtual void mousePressEvent(QMouseEvent*);

    53 };

    54 

    55 

    56 class GraphicsWebView : public QGraphicsWebView {

    57     Q_OBJECT

    58 

    59 public:

    60     GraphicsWebView(QGraphicsItem* parent = 0) : QGraphicsWebView(parent) {};

    61 

    62 protected:

    63     virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent*);

    64     virtual void mousePressEvent(QGraphicsSceneMouseEvent*);

    65 };

    66 

    67 

    68 class WebViewGraphicsBased : public QGraphicsView {

    69     Q_OBJECT

    70     Q_PROPERTY(qreal yRotation READ yRotation WRITE setYRotation)

    71 

    72 public:

    73     WebViewGraphicsBased(QWidget* parent);

    74     void setPage(QWebPage* page);

    75 

    76     void setItemCacheMode(QGraphicsItem::CacheMode mode) { m_item->setCacheMode(mode); }

    77     QGraphicsItem::CacheMode itemCacheMode() { return m_item->cacheMode(); }

    78 

    79     void setFrameRateMeasurementEnabled(bool enabled);

    80     bool frameRateMeasurementEnabled() const { return m_measureFps; }

    81 

    82     virtual void resizeEvent(QResizeEvent*);

    83     virtual void paintEvent(QPaintEvent* event);

    84 

    85     void setResizesToContents(bool b);

    86     bool resizesToContents() const { return m_resizesToContents; }

    87 

    88     void setYRotation(qreal angle)

    89     {

    90 #if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)

    91         QRectF r = m_item->boundingRect();

    92         m_item->setTransform(QTransform()

    93             .translate(r.width() / 2, r.height() / 2)

    94             .rotate(angle, Qt::YAxis)

    95             .translate(-r.width() / 2, -r.height() / 2));

    96 #endif

    97         m_yRotation = angle;

    98     }

    99     qreal yRotation() const

   100     {

   101         return m_yRotation;

   102     }

   103 

   104     GraphicsWebView* graphicsWebView() const { return m_item; }

   105 

   106 public slots:

   107     void updateFrameRate();

   108     void animatedFlip();

   109     void animatedYFlip();

   110     void contentsSizeChanged(const QSize&);

   111 

   112 signals:

   113     void yFlipRequest();

   114     void currentFPSUpdated(int fps);

   115 

   116 private:

   117     GraphicsWebView* m_item;

   118     int m_numPaintsTotal;

   119     int m_numPaintsSinceLastMeasure;

   120     QTime m_startTime;

   121     QTime m_lastConsultTime;

   122     QTimer* m_updateTimer;

   123     bool m_measureFps;

   124     qreal m_yRotation;

   125     bool m_resizesToContents;

   126     FpsTimer m_fpsTimer;

   127 };

   128 

   129 #endif