1 files changed, 38 insertions, 0 deletions
diff --git a/examples/multimedia/spectrum/progressbar.h b/examples/multimedia/spectrum/progressbar.h
new file mode 100644
index 000000000..8b117c7e6
--- /dev/null
+++ b/examples/multimedia/spectrum/progressbar.h
@@ -0,0 +1,38 @@
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef PROGRESSBAR_H
+#define PROGRESSBAR_H
+
+#include <QWidget>
+
+/**
+ * Widget which displays a the current fill state of the Engine's internal
+ * buffer, and the current play/record position within that buffer.
+ */
+class ProgressBar : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit ProgressBar(QWidget *parent = nullptr);
+    ~ProgressBar();
+
+    void reset();
+    void paintEvent(QPaintEvent *event) override;
+
+public slots:
+    void bufferLengthChanged(qint64 length);
+    void recordPositionChanged(qint64 recordPosition);
+    void playPositionChanged(qint64 playPosition);
+    void windowChanged(qint64 position, qint64 length);
+
+private:
+    qint64 m_bufferLength;
+    qint64 m_recordPosition;
+    qint64 m_playPosition;
+    qint64 m_windowPosition;
+    qint64 m_windowLength;
+};
+
+#endif // PROGRESSBAR_H