musicplayer.h Example File
musicplayer/musicplayer.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. ** ** $QT_BEGIN_LICENSE:BSD$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** BSD License Usage ** Alternatively, 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 MUSICPLAYER_H #define MUSICPLAYER_H #include <QWidget> #include <QMediaPlayer> class VolumeButton; QT_FORWARD_DECLARE_CLASS(QLabel) QT_FORWARD_DECLARE_CLASS(QSlider) QT_FORWARD_DECLARE_CLASS(QAbstractButton) QT_FORWARD_DECLARE_CLASS(QWinTaskbarButton) QT_FORWARD_DECLARE_CLASS(QWinTaskbarProgress) QT_FORWARD_DECLARE_CLASS(QWinThumbnailToolBar) QT_FORWARD_DECLARE_CLASS(QWinThumbnailToolButton) class MusicPlayer : public QWidget { Q_OBJECT public: explicit MusicPlayer(QWidget *parent = nullptr); static QStringList supportedMimeTypes(); static QStringList supportedSuffixes(); public slots: void openFile(); void playUrl(const QUrl& url); void togglePlayback(); void seekForward(); void seekBackward(); protected: bool event(QEvent *event) override; void dragEnterEvent(QDragEnterEvent *event) override; void dropEvent(QDropEvent *event) override; void mousePressEvent(QMouseEvent *event) override; void mouseMoveEvent(QMouseEvent *event) override; void mouseReleaseEvent(QMouseEvent *event) override; private slots: void stylize(); void updateState(QMediaPlayer::State state); void updatePosition(qint64 position); void updateDuration(qint64 duration); void setPosition(int position); void updateInfo(); void handleError(); void updateTaskbar(); void updateThumbnailToolBar(); private: void createWidgets(); void createShortcuts(); void createJumpList(); void createTaskbar(); void createThumbnailToolBar(); QWinTaskbarButton *taskbarButton = nullptr; QWinTaskbarProgress *taskbarProgress = nullptr; QWinThumbnailToolBar *thumbnailToolBar = nullptr; QWinThumbnailToolButton *playToolButton = nullptr; QWinThumbnailToolButton *forwardToolButton = nullptr; QWinThumbnailToolButton *backwardToolButton = nullptr; QMediaPlayer mediaPlayer; QAbstractButton *playButton = nullptr; VolumeButton *volumeButton = nullptr; QSlider *positionSlider = nullptr; QLabel *positionLabel = nullptr; QLabel *infoLabel = nullptr; QPoint offset; QString fileName; }; #endif // MUSICPLAYER_H
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