1 /*  This file is part of the KDE project.

     2 

     3     Copyright (C) 2    //Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).007 Nokia Corporation and/or its subsidiary(-ies).

     4 

     5     This library is free software: you can redistribute it and/or modify

     6     it under the terms of the GNU Lesser General Public License as published by

     7     the Free Software Foundation, either version 2.1 or 3 of the License.

     8 

     9     This library is distributed in the hope that it will be useful,

    10     but WITHOUT ANY WARRANTY; without even the implied warranty of

    11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12     GNU Lesser General Public License for more details.

    13 

    14     You should have received a copy of the GNU Lesser General Public License

    15     along with this library.  If not, see <http://www.gnu.org/licenses/>.

    16 */

    17 

    18 #ifndef Phonon_GSTREAMER_VIDEOWIDGET_H

    19 #define Phonon_GSTREAMER_VIDEOWIDGET_H

    20 

    21 #include <phonon/videowidget.h>

    22 #include <phonon/videowidgetinterface.h>

    23 

    24 #include "backend.h"

    25 #include "common.h"

    26 #include "medianode.h"

    27 #include "abstractrenderer.h"

    28 

    29 #include <gst/gst.h>

    30 

    31 QT_BEGIN_NAMESPACE

    32 

    33 class QString;

    34 

    35 namespace Phonon

    36 {

    37 namespace Gstreamer

    38 {

    39 

    40 class VideoWidget : public QWidget, public Phonon::VideoWidgetInterface, public MediaNode

    41 {

    42     Q_OBJECT

    43     Q_INTERFACES(Phonon::VideoWidgetInterface Phonon::Gstreamer::MediaNode)

    44 public:

    45     VideoWidget(Backend *backend, QWidget *parent = 0);

    46     ~VideoWidget();

    47 

    48     void setupVideoBin();

    49     void paintEvent(QPaintEvent *event);

    50     void mediaNodeEvent(const MediaNodeEvent *event);

    51     void setVisible(bool);

    52 

    53     Phonon::VideoWidget::AspectRatio aspectRatio() const;

    54     void setAspectRatio(Phonon::VideoWidget::AspectRatio aspectRatio);

    55     Phonon::VideoWidget::ScaleMode scaleMode() const;

    56     void setScaleMode(Phonon::VideoWidget::ScaleMode);

    57     qreal brightness() const;

    58     void setBrightness(qreal);

    59     qreal contrast() const;

    60     void setContrast(qreal);

    61     qreal hue() const;

    62     void setHue(qreal);

    63     qreal saturation() const;

    64     void setSaturation(qreal);

    65     void setMovieSize(const QSize &size);

    66     QSize sizeHint() const;

    67     QRect scaleToAspect(QRect srcRect, int w, int h) const;

    68     QRect calculateDrawFrameRect() const;

    69 

    70     GstElement *videoElement()

    71     {

    72         Q_ASSERT(m_videoBin);

    73         return m_videoBin;

    74     }

    75 

    76     QSize movieSize() const {

    77         return m_movieSize;

    78     }

    79 

    80     bool event(QEvent *);

    81 

    82     QWidget *widget() {

    83         return this;

    84     }

    85 

    86 protected:

    87     GstElement *m_videoBin;

    88     QSize m_movieSize;

    89     AbstractRenderer *m_renderer;

    90 

    91 private:

    92     Phonon::VideoWidget::AspectRatio m_aspectRatio;

    93     qreal m_brightness, m_hue, m_contrast, m_saturation;

    94     Phonon::VideoWidget::ScaleMode m_scaleMode;

    95 

    96     GstElement *m_videoBalance;

    97     GstElement *m_colorspace;

    98     GstElement *m_videoplug;

    99 };

   100 

   101 }

   102 } //namespace Phonon::Gstreamer

   103 

   104 QT_END_NAMESPACE

   105 

   106 #endif // Phonon_GSTREAMER_VIDEOWIDGET_H