diff options
Diffstat (limited to 'examples/multimedia/spectrum/waveform.h')
| -rw-r--r-- | examples/multimedia/spectrum/waveform.h | 97 |
1 files changed, 26 insertions, 71 deletions
diff --git a/examples/multimedia/spectrum/waveform.h b/examples/multimedia/spectrum/waveform.h index 8c26e99b2..86fda9962 100644 --- a/examples/multimedia/spectrum/waveform.h +++ b/examples/multimedia/spectrum/waveform.h @@ -1,52 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2017 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #ifndef WAVEFORM_H #define WAVEFORM_H @@ -70,7 +23,7 @@ class Waveform : public QWidget Q_OBJECT public: - explicit Waveform(QWidget *parent = 0); + explicit Waveform(QWidget *parent = nullptr); ~Waveform(); // QWidget @@ -115,17 +68,18 @@ private: struct TilePoint { TilePoint(int idx = 0, qint64 pos = 0, qint64 pix = 0) - : index(idx), positionOffset(pos), pixelOffset(pix) - { } + : index(idx), positionOffset(pos), pixelOffset(pix) + { + } // Index of tile - int index; + int index; // Number of bytes from start of tile - qint64 positionOffset; + qint64 positionOffset; // Number of pixels from left of corresponding pixmap - int pixelOffset; + int pixelOffset; }; /* @@ -177,36 +131,37 @@ private: void resetTiles(qint64 newStartPos); private: - qint64 m_bufferPosition; - qint64 m_bufferLength; - QByteArray m_buffer; + qint64 m_bufferPosition; + qint64 m_bufferLength; + QByteArray m_buffer; - qint64 m_audioPosition; - QAudioFormat m_format; + qint64 m_audioPosition; + QAudioFormat m_format; - bool m_active; + bool m_active; - QSize m_pixmapSize; - QList<QPixmap*> m_pixmaps; + QSize m_pixmapSize; + QList<QPixmap *> m_pixmaps; - struct Tile { + struct Tile + { // Pointer into parent m_pixmaps array - QPixmap* pixmap; + QPixmap *pixmap; // Flag indicating whether this tile has been painted - bool painted; + bool painted; }; - QList<Tile> m_tiles; + QList<Tile> m_tiles; // Length of audio data in bytes depicted by each tile - qint64 m_tileLength; + qint64 m_tileLength; // Position in bytes of the first tile, relative to m_buffer - qint64 m_tileArrayStart; + qint64 m_tileArrayStart; - qint64 m_windowPosition; - qint64 m_windowLength; + qint64 m_windowPosition; + qint64 m_windowLength; }; #endif // WAVEFORM_H |