Qt 5.6 | Qt Multimedia | Media Player Example | player.h Example File

Qt 5.6.2 Reference Documentation

# player.h Example File

multimediawidgets/player/player.h

      /****************************************************************************
      **
      ** Copyright (C) 2015 The Qt Company Ltd.
      ** Contact: http://www.qt.io/licensing/
      **
      ** This file is part of the examples of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:BSD$
      ** You may use this file under the terms of the BSD license as follows:
      **
      ** "Redistribution and use in source and binary forms, with or without
      ** modification, are permitted provided that the following conditions are
      ** met:
      **   * Redistributions of source code must retain the above copyright
      **     notice, this list of conditions and the following disclaimer.
      **   * Redistributions in binary form must reproduce the above copyright
      **     notice, this list of conditions and the following disclaimer in
      **     the documentation and/or other materials provided with the
      **     distribution.
      **   * Neither the name of The Qt Company Ltd nor the names of its
      **     contributors may be used to endorse or promote products derived
      **     from this software without specific prior written permission.
      **
      **
      ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
      **
      ** $QT_END_LICENSE$
      **
      ****************************************************************************/

      #ifndef PLAYER_H
      #define PLAYER_H

      #include "videowidget.h"

      #include <QWidget>
      #include <QMediaPlayer>
      #include <QMediaPlaylist>

      class QAbstractItemView;
      class QLabel;
      class QMediaPlayer;
      class QModelIndex;
      class QPushButton;
      class QSlider;
      class QVideoProbe;
      class QVideoWidget;

      class PlaylistModel;
      class HistogramWidget;

      class Player : public QWidget
      {
          Q_OBJECT

      public:
          Player(QWidget *parent = 0);
          ~Player();

          bool isPlayerAvailable() const;

          void addToPlaylist(const QList<QUrl> urls);

      signals:
          void fullScreenChanged(bool fullScreen);

      private slots:
          void open();
          void durationChanged(qint64 duration);
          void positionChanged(qint64 progress);
          void metaDataChanged();

          void previousClicked();

          void seek(int seconds);
          void jump(const QModelIndex &index);
          void playlistPositionChanged(int);

          void statusChanged(QMediaPlayer::MediaStatus status);
          void bufferingProgress(int progress);
          void videoAvailableChanged(bool available);

          void displayErrorMessage();

      #ifndef PLAYER_NO_COLOROPTIONS
          void showColorDialog();
      #endif

      private:
          void setTrackInfo(const QString &info);
          void setStatusInfo(const QString &info);
          void handleCursor(QMediaPlayer::MediaStatus status);
          void updateDurationInfo(qint64 currentInfo);

          QMediaPlayer *player;
          QMediaPlaylist *playlist;
          VideoWidget *videoWidget;
          QLabel *coverLabel;
          QSlider *slider;
          QLabel *labelDuration;
          QPushButton *fullScreenButton;
      #ifndef PLAYER_NO_COLOROPTIONS
          QPushButton *colorButton;
          QDialog *colorDialog;
      #endif

          QLabel *labelHistogram;
          HistogramWidget *histogram;
          QVideoProbe *probe;

          PlaylistModel *playlistModel;
          QAbstractItemView *playlistView;
          QString trackInfo;
          QString statusInfo;
          qint64 duration;
      };

      #endif // PLAYER_H