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/***************************************************************************
PlayBackDialog.h - dialog for configuring the playback
-------------------
begin : Sun May 13 2001
copyright : (C) 2001 by Thomas Eschenbacher
email : Thomas.Eschenbacher@gmx.de
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#ifndef PLAY_BACK_DIALOG_H
#define PLAY_BACK_DIALOG_H
#include "config.h"
#include <QMap>
#include <QString>
#include "libkwave/PlayBackParam.h"
#include "libkwave/PlayBackTypesMap.h"
#include "libgui/TreeWidgetWrapper.h"
#include "ui_PlayBackDlg.h"
class QTreeWidgetItem;
namespace Kwave
{
class PlaybackController;
class PlayBackDevice;
class Plugin;
class PlayBackDialog: public QDialog, public Ui::PlayBackDlg
{
Q_OBJECT
public:
/** Constructor */
PlayBackDialog(Kwave::Plugin &p,
Kwave::PlaybackController &playback_controller,
const Kwave::PlayBackParam ¶ms);
/** Destructor */
~PlayBackDialog() override;
/** Returns the current set of parameters */
const Kwave::PlayBackParam ¶ms();
/**
* Selects a new playback method.
*/
void setMethod(Kwave::playback_method_t method);
/**
* Sets the list of supported devices, just entries
* for the device selection combo box.
*/
void setSupportedDevices(QStringList devices);
/** return the file filter used for the "Select..." dialog */
inline QString fileFilter() {
return m_file_filter;
}
/** Sets the list of supported bits per sample */
void setSupportedBits(const QList<unsigned int> &bits);
/**
* Sets the lowest and highest number of playback channels
* @param min lowest supported number of channels
* @param max highest supported number of channels
*/
void setSupportedChannels(unsigned int min, unsigned int max);
signals:
/** emits changes in the currently selected playback method */
void sigMethodChanged(Kwave::playback_method_t method);
/** emitted when the user clicked on the "Test..." button */
void sigTestPlayback();
public slots:
/** set the file filter used for the "Select..." dialog */
void setFileFilter(const QString &filter);
/** set a new device name */
void setDevice(const QString &device);
/** sets the new value for bits per sample */
void setBitsPerSample(unsigned int bits);
/** Sets the number of channels */
void setChannels(int channels);
private slots:
/**
* called when a new playback method has been selected
* from the combo box
* @param index the position within the combo box
*/
void methodSelected(int index);
/** Selects a buffer size exponent */
void setBufferSize(int exp);
/** Select a playback device through a File/Open dialog */
void selectPlaybackDevice();
/** selection in the device list view has changed */
void listEntrySelected(QTreeWidgetItem *current,
QTreeWidgetItem *previous);
/** selection in the device list view has changed */
void listItemExpanded(QTreeWidgetItem *item);
/**
* updates/fixes the device selection when the tree view has
* lost focus, to avoid that nothing is selected
*/
void updateListSelection();
/** selection in the bits per sample combo box has changed */
void bitsPerSampleSelected(const QString &text);
/** invoke the online help */
void invokeHelp();
private:
/** reference to the playback controller */
Kwave::PlaybackController &m_playback_controller;
/** The playback device used for configuring and testing playback */
Kwave::PlayBackDevice *m_device;
/** all parameters needed for playback */
Kwave::PlayBackParam m_playback_params;
/** map of playback methods/types */
Kwave::PlayBackTypesMap m_methods_map;
/** file filter for the "Select..." dialog (optional) */
QString m_file_filter;
/** map for items in the list view */
QMap<QTreeWidgetItem *, QString> m_devices_list_map;
/** if false, do nothing in setDevice */
bool m_enable_setDevice;
};
}
#endif /* _PLAY_BACK_DIALOG_H */
//***************************************************************************
//***************************************************************************
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