/usr/include/qmmp/visual.h is in libqmmp-dev 0.7.4-1.
This file is owned by root:root, with mode 0o644.
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* Copyright (C) 2008-2012 by Ilya Kotov *
* forkotov02@hotmail.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 VISUAL_H
#define VISUAL_H
#include <QMutex>
#include <QStringList>
#include <QWidget>
#include <QHash>
class Buffer;
class Decoder;
class Output;
class VisualFactory;
/*! @brief The Visual class provides the base interface class of visualizations.
* @author Ilya Kotov <forkotov02@hotmail.ru>
*/
class Visual : public QWidget
{
Q_OBJECT
public:
/*!
* Object contsructor.
* @param parent Parent object.
*/
Visual(QWidget *parent);
/*!
* Destructor.
*/
virtual ~Visual();
/*!
* Adds data for visualization.
* Subclass should reimplement this function.
* @param data Audio data.
* @param size Size of audio data.
* @param chan Number of channels.
*/
virtual void add(unsigned char *data, qint64 size, int chan) = 0;
/*!
* Resets visual plugin buffers and widgets.
* Subclass should reimplement this function.
*/
virtual void clear() = 0;
/*!
* Returns mutex pointer.
*/
QMutex *mutex();
/*!
* Returns a list of visual factories.
*/
static QList<VisualFactory*> *factories();
/*!
* Returns plugin file path.
* @param factory Visual plugin factory.
*/
static QString file(VisualFactory *factory);
/*!
* Sets whether the visual plugin is enabled.
* @param factory Visual plugin factory.
* @param enable Plugin enable state (\b true - enable, \b false - disable)
*/
static void setEnabled(VisualFactory* factory, bool enable = true);
/*!
* Returns \b true if visual plugin is enabled, otherwise returns \b false
* @param factory Effect plugin factory.
*/
static bool isEnabled(VisualFactory* factory);
/*!
* Adds external visualization \b visual.
*/
static void add(Visual*visual);
/*!
* Removes external visualization \b visual.
*/
static void remove(Visual*);
/*!
* Prepares visual plugins for usage.
* @param parent Parent widget.
* @param receiver Receiver object.
* @param member A slot to receive changes of active visualizations list.
*/
static void initialize(QWidget *parent, QObject *receiver = 0, const char *member = 0);
/*!
* Returns a pointer to a list of created visual objects.
*/
static QList<Visual *> *visuals();
/*!
* Shows configuration dialog and updates settings automatically.
* @param factory Visual plugin factory.
* @param parent Parent widget.
*/
static void showSettings(VisualFactory *factory, QWidget *parent);
signals:
/*!
* Emitted when visual widget is closed by user.
*/
void closedByUser();
protected:
/*!
* QWidget's close event. Reimplementation should call base function.
* @param event QCloseEvent insatance.
*/
virtual void closeEvent (QCloseEvent *event);
private:
Decoder *m_decoder;
Output *m_output;
QMutex m_mutex;
static QList<VisualFactory*> *m_factories;
static QHash <VisualFactory*, QString> *m_files;
static void checkFactories();
static QList<Visual*> m_visuals;
static QHash<VisualFactory*, Visual*> m_vis_map; //internal visualization
static QWidget *m_parentWidget;
static QObject *m_receiver;
static const char *m_member;
};
#endif
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