qsui: added waveform seek bar

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@9172 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 81 insertions, 0 deletions

diff --git a/src/plugins/Ui/qsui/qsuiwaveformseekbar.h b/src/plugins/Ui/qsui/qsuiwaveformseekbar.h
new file mode 100644
index 000000000..2edde1ee7
--- /dev/null
+++ b/src/plugins/Ui/qsui/qsuiwaveformseekbar.h
@@ -0,0 +1,81 @@
+/***************************************************************************
+ *   Copyright (C) 2020 by Ilya Kotov                                      *
+ *   forkotov02@ya.ru                                                      *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
+ ***************************************************************************/
+
+#ifndef QSUIWAVEFORMSEEKBAR_H
+#define QSUIWAVEFORMSEEKBAR_H
+
+#include <QWidget>
+#include <QThread>
+#include <QMutex>
+#include <qmmp/audioparameters.h>
+#include <qmmp/qmmp.h>
+
+class SoundCore;
+class Decoder;
+class InputSource;
+class QSUIWaveformScanner;
+
+class QSUIWaveformSeekBar : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit QSUIWaveformSeekBar(QWidget *parent = nullptr);
+    QSize sizeHint() const override;
+
+private slots:
+    void onTrackInfoChanged();
+    void onStateChanged(Qmmp::State state);
+    void onScanFinished();
+    void onElapsedChanged(qint64 elapsed);
+
+private:
+    void paintEvent(QPaintEvent *e) override;
+
+    SoundCore *m_core;
+    QSUIWaveformScanner *m_scanner = nullptr;
+    QList<int> m_data;
+    int m_channels = 0;
+    qint64 m_elapsed = 0;
+    qint64 m_duration = 0;
+};
+
+class QSUIWaveformScanner : public QThread
+{
+    Q_OBJECT
+public:
+    explicit QSUIWaveformScanner(QObject *parent);
+    ~QSUIWaveformScanner();
+    bool scan(const QString &path);
+    void stop();
+    const QList<int> &data() const;
+    const AudioParameters &audioParameters() const;
+
+private:
+    void run() override;
+
+    bool m_user_stop = false;
+    Decoder *m_decoder = nullptr;
+    InputSource *m_input = nullptr;
+    QMutex m_mutex;
+    QList<int> m_data;
+    AudioParameters m_ap;
+};
+
+#endif // QSUIWAVEFORMSEEKBAR_H