--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/audioinput/audioinput.h Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,135 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QPixmap>
+#include <QWidget>
+#include <QObject>
+#include <QMainWindow>
+#include <QPushButton>
+#include <QComboBox>
+#include <QByteArray>
+
+#include <qaudioinput.h>
+
+class AudioInfo : public QIODevice
+{
+ Q_OBJECT
+public:
+ AudioInfo(const QAudioFormat &format, QObject *parent);
+ ~AudioInfo();
+
+ void start();
+ void stop();
+
+ qreal level() const { return m_level; }
+
+ qint64 readData(char *data, qint64 maxlen);
+ qint64 writeData(const char *data, qint64 len);
+
+private:
+ const QAudioFormat m_format;
+ quint16 m_maxAmplitude;
+ qreal m_level; // 0.0 <= m_level <= 1.0
+
+signals:
+ void update();
+};
+
+
+class RenderArea : public QWidget
+{
+ Q_OBJECT
+
+public:
+ RenderArea(QWidget *parent = 0);
+
+ void setLevel(qreal value);
+
+protected:
+ void paintEvent(QPaintEvent *event);
+
+private:
+ qreal m_level;
+ QPixmap m_pixmap;
+};
+
+class InputTest : public QMainWindow
+{
+ Q_OBJECT
+public:
+ InputTest();
+ ~InputTest();
+
+private:
+ void initializeWindow();
+ void initializeAudio();
+ void createAudioInput();
+
+private slots:
+ void refreshDisplay();
+ void notified();
+ void readMore();
+ void toggleMode();
+ void toggleSuspend();
+ void stateChanged(QAudio::State state);
+ void deviceChanged(int index);
+
+private:
+ // Owned by layout
+ RenderArea *m_canvas;
+ QPushButton *m_modeButton;
+ QPushButton *m_suspendResumeButton;
+ QComboBox *m_deviceBox;
+
+ QAudioDeviceInfo m_device;
+ AudioInfo *m_audioInfo;
+ QAudioFormat m_format;
+ QAudioInput *m_audioInput;
+ QIODevice *m_input;
+ bool m_pullMode;
+ QByteArray m_buffer;
+
+ static const QString PushModeLabel;
+ static const QString PullModeLabel;
+ static const QString SuspendLabel;
+ static const QString ResumeLabel;
+};
+