5e801e2793
As in the past, to avoid rewriting various autotests that contain line-number information, an extra blank line has been inserted at the end of the license text to ensure that this commit does not change the total number of lines in the license header. Change-Id: I20e5215108c6ebd5f8474fed5c3665118e4791e6 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
145 lines
4.6 KiB
C++
145 lines
4.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef MAINWIDGET_H
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#define MAINWIDGET_H
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#include <QWidget>
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#include <QIcon>
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#include <QtMultimedia/qaudio.h>
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class Engine;
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class FrequencySpectrum;
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class ProgressBar;
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class Spectrograph;
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class Waveform;
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class LevelMeter;
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class SettingsDialog;
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class ToneGeneratorDialog;
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QT_FORWARD_DECLARE_CLASS(QAudioFormat)
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QT_FORWARD_DECLARE_CLASS(QLabel)
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QT_FORWARD_DECLARE_CLASS(QPushButton)
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QT_FORWARD_DECLARE_CLASS(QMenu)
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QT_FORWARD_DECLARE_CLASS(QAction)
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/**
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* Main application widget, responsible for connecting the various UI
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* elements to the Engine.
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*/
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class MainWidget : public QWidget {
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Q_OBJECT
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public:
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MainWidget(QWidget *parent = 0);
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~MainWidget();
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// QObject
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void timerEvent(QTimerEvent *event);
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public slots:
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void stateChanged(QAudio::Mode mode, QAudio::State state);
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void formatChanged(const QAudioFormat &format);
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void spectrumChanged(qint64 position, qint64 length,
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const FrequencySpectrum &spectrum);
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void infoMessage(const QString &message, int timeoutMs);
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void errorMessage(const QString &heading, const QString &detail);
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void audioPositionChanged(qint64 position);
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void bufferLengthChanged(qint64 length);
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private slots:
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void showFileDialog();
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void showSettingsDialog();
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void showToneGeneratorDialog();
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void initializeRecord();
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void updateModeMenu();
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void updateButtonStates();
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private:
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void createUi();
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void createMenus();
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void connectUi();
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void reset();
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enum Mode {
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NoMode,
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RecordMode,
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GenerateToneMode,
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LoadFileMode
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};
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void setMode(Mode mode);
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private:
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Mode m_mode;
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Engine* m_engine;
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#ifndef DISABLE_WAVEFORM
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Waveform* m_waveform;
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#endif
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ProgressBar* m_progressBar;
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Spectrograph* m_spectrograph;
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LevelMeter* m_levelMeter;
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QPushButton* m_modeButton;
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QPushButton* m_recordButton;
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QIcon m_recordIcon;
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QPushButton* m_pauseButton;
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QIcon m_pauseIcon;
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QPushButton* m_playButton;
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QIcon m_playIcon;
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QPushButton* m_settingsButton;
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QIcon m_settingsIcon;
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QLabel* m_infoMessage;
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int m_infoMessageTimerId;
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SettingsDialog* m_settingsDialog;
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ToneGeneratorDialog* m_toneGeneratorDialog;
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QMenu* m_modeMenu;
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QAction* m_loadFileAction;
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QAction* m_generateToneAction;
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QAction* m_recordAction;
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};
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#endif // MAINWIDGET_H
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