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     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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    16 ** GNU Lesser General Public License Usage

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

    41 

    42 #include "videowidget.h"

    43 

    44 #include "videowidgetsurface.h"

    45 

    46 #include <QtGui>

    47 #include <qvideosurfaceformat.h>

    48 

    49 //! [0]

    50 VideoWidget::VideoWidget(QWidget *parent)

    51     : QWidget(parent)

    52     , surface(0)

    53 {

    54     setAutoFillBackground(false);

    55     setAttribute(Qt::WA_NoSystemBackground, true);

    56     setAttribute(Qt::WA_PaintOnScreen, true);

    57 

    58     QPalette palette = this->palette();

    59     palette.setColor(QPalette::Background, Qt::black);

    60     setPalette(palette);

    61 

    62     setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);

    63 

    64     surface = new VideoWidgetSurface(this);

    65 }

    66 //! [0]

    67 

    68 //! [1]

    69 VideoWidget::~VideoWidget()

    70 {

    71     delete surface;

    72 }

    73 //! [1]

    74 

    75 //! [2]

    76 QSize VideoWidget::sizeHint() const

    77 {

    78     return surface->surfaceFormat().sizeHint();

    79 }

    80 //! [2]

    81 

    82 

    83 //! [3]

    84 void VideoWidget::paintEvent(QPaintEvent *event)

    85 {

    86     QPainter painter(this);

    87 

    88     if (surface->isActive()) {

    89         const QRect videoRect = surface->videoRect();

    90 

    91         if (!videoRect.contains(event->rect())) {

    92             QRegion region = event->region();

    93             region.subtract(videoRect);

    94 

    95             QBrush brush = palette().background();

    96 

    97             foreach (const QRect &rect, region.rects())

    98                 painter.fillRect(rect, brush);

    99         }

   100 

   101         surface->paint(&painter);

   102     } else {

   103         painter.fillRect(event->rect(), palette().background());

   104     }

   105 }

   106 //! [3]

   107 

   108 //! [4]

   109 void VideoWidget::resizeEvent(QResizeEvent *event)

   110 {

   111     QWidget::resizeEvent(event);

   112 

   113     surface->updateVideoRect();

   114 }

   115 //! [4]