1 /****************************************************************************

     2 **

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

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the demonstration applications of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

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    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #ifndef ARTHURWIDGETS_H

    43 #define ARTHURWIDGETS_H

    44 

    45 #include "arthurstyle.h"

    46 #include <QBitmap>

    47 #include <QPushButton>

    48 #include <QGroupBox>

    49 

    50 #if defined(QT_OPENGL_SUPPORT)

    51 #include <QGLWidget>

    52 #include <QEvent>

    53 class GLWidget : public QGLWidget

    54 {

    55 public:

    56     GLWidget(QWidget *parent)

    57         : QGLWidget(QGLFormat(QGL::SampleBuffers), parent)

    58     {

    59         setAttribute(Qt::WA_AcceptTouchEvents);

    60     }

    61     void disableAutoBufferSwap() { setAutoBufferSwap(false); }

    62     void paintEvent(QPaintEvent *) { parentWidget()->update(); }

    63 protected:

    64     bool event(QEvent *event)

    65     {

    66         switch (event->type()) {

    67         case QEvent::TouchBegin:

    68         case QEvent::TouchUpdate:

    69         case QEvent::TouchEnd:

    70             event->ignore();

    71             return false;

    72             break;

    73         default:

    74             break;

    75         }

    76         return QGLWidget::event(event);

    77     }

    78 };

    79 #endif

    80 

    81 QT_FORWARD_DECLARE_CLASS(QTextDocument)

    82 QT_FORWARD_DECLARE_CLASS(QTextEdit)

    83 QT_FORWARD_DECLARE_CLASS(QVBoxLayout)

    84 

    85 class ArthurFrame : public QWidget

    86 {

    87     Q_OBJECT

    88 public:

    89     ArthurFrame(QWidget *parent);

    90     virtual void paint(QPainter *) {}

    91 

    92 

    93     void paintDescription(QPainter *p);

    94 

    95     void loadDescription(const QString &filename);

    96     void setDescription(const QString &htmlDesc);

    97 

    98     void loadSourceFile(const QString &fileName);

    99 

   100     bool preferImage() const { return m_prefer_image; }

   101 

   102 #if defined(QT_OPENGL_SUPPORT)

   103     QGLWidget *glWidget() const { return glw; }

   104 #endif

   105 

   106 public slots:

   107     void setPreferImage(bool pi) { m_prefer_image = pi; }

   108     void setDescriptionEnabled(bool enabled);

   109     void showSource();

   110 

   111 #if defined(QT_OPENGL_SUPPORT)

   112     void enableOpenGL(bool use_opengl);

   113     bool usesOpenGL() { return m_use_opengl; }

   114 #endif

   115 

   116 signals:

   117     void descriptionEnabledChanged(bool);

   118 

   119 protected:

   120     void paintEvent(QPaintEvent *);

   121     void resizeEvent(QResizeEvent *);

   122 

   123 #if defined(QT_OPENGL_SUPPORT)

   124     GLWidget *glw;

   125     bool m_use_opengl;

   126 #endif

   127     QPixmap m_tile;

   128 

   129     bool m_show_doc;

   130     bool m_prefer_image;

   131     QTextDocument *m_document;

   132 

   133     QString m_sourceFileName;

   134 

   135 };

   136 

   137 #endif