1 /*

     2 * Copyright (c) 2009 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 __TNENGINEHANDLER_H__

    20 #define __TNENGINEHANDLER_H__

    21 

    22 #include <QTimer>

    23 #include <QPainter>

    24 

    25 namespace WRT {

    26 

    27     class TnEngineGenerator;

    28     class TnEngineView;

    29     class WrtBrowserContainer;

    30     class WrtPageManager;

    31 

    32     class TnEngineHandler : public QObject

    33     {

    34         Q_OBJECT

    35     public:

    36         ~TnEngineHandler();

    37         TnEngineHandler(WrtPageManager * mgr, QWidget * parent);

    38 

    39     public:

    40         void setVisible(bool visible);

    41         bool isVisible() const { return m_visible; }

    42         void setZoomOutLevel(int percent) { m_zoomOutLevel = percent; }

    43         int zoomOutLevel() const { return m_zoomOutLevel; }

    44         QRect theRect() const;

    45         QRect indicatorRect() const;

    46         TnEngineView* tnEngineView() { return m_TnEngineView; }

    47 

    48         void drawDocumentPart(QPainter& painter, const QRect& documentAreaToDraw);

    49         QRect documentViewport() const;

    50         void scaledPageChanged(const QRect& area, bool fullScreen, bool scroll);

    51         QSize documentSize() const;

    52 

    53     public slots:

    54         void documentStarted();

    55         void documentChanged();

    56         void documentCompleted(bool);

    57         void documentViewportMoved();

    58 

    59     public:

    60         QRect TnEngineRect() const;

    61         void draw(QPainter& gc, const QRect& rect) const;

    62         QRect containerRect() const;

    63         void setContainerRect(const QRect& rect);

    64         bool isFullScreenMode() const;

    65         void setFullScreenMode(bool fullScreenMode);

    66         void updateNow();

    67         QRect viewportOnDocument() const;

    68 

    69     public slots:

    70 

    71         void updateCbTimerCb();

    72         void updateTimerCb();

    73         void scrollBy(int x, int y);

    74         void draggingStarted();

    75         void draggingEnded();

    76 

    77     signals:

    78         void ok(int x, int y);

    79 

    80     private slots:

    81         void okInvoked();

    82 

    83     private:

    84         friend class TnEngineGenerator;

    85 

    86         void createGenerator();

    87         void destroyGenerator();

    88         void createView();

    89         void destroyView();

    90         QRect fromDocCoords(const QRect& from) const;

    91         QPoint fromDocCoords(const QPoint& from) const;

    92         QSize fromDocCoords(const QSize& from) const;

    93         QRect toDocCoords(const QRect& from) const;

    94         QPoint toDocCoords(const QPoint& from) const;

    95         QSize toDocCoords(const QSize& from) const;

    96         bool checkAndCreateBitmap(QSize size, QPixmap*& image);

    97         QSize calcSize() const;

    98         QRect calcViewportOnDocument() const;

    99         void documentChangedCb();

   100         void scrollTimerCb();

   101         void visibilityTimerCb();

   102         QRect viewportOnTnEngine() const;

   103 

   104         void activate();

   105         void deactivate();

   106 

   107     public:

   108         QWidget* widget();

   109         bool isDocumentComplete() const { return m_documentComplete; }

   110 

   111     private:

   112         // Page Manager

   113         WrtPageManager * m_pageMgr;

   114     

   115 

   116         // generator

   117         TnEngineGenerator* m_generator;

   118         // zoom level of the TnEngine in percent

   119         int m_zoomOutLevel;

   120         QRect m_viewportOnDocument;

   121         bool m_needsUpdate;

   122         QTimer* m_updateTimer;

   123         QTimer* m_updateCbTimer;

   124         bool m_documentComplete;

   125         QRect m_containerRect;

   126         bool m_fullScreenMode;

   127         bool m_visible;

   128         bool m_pageScalerUpdating;

   129         WrtBrowserContainer* m_activePage;

   130         QPoint m_savedPointPageView;

   131         TnEngineView* m_TnEngineView;

   132         qreal m_scrollX;

   133         qreal m_scrollY;

   134         bool m_dragging;

   135 

   136         QWidget * m_parentWidget;

   137     };

   138 

   139 }

   140 #endif

   141 

   142 // End of File