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/***************************************************************************
FileInfoPlugin.cpp - plugin for editing file properties
-------------------
begin : Fri Jul 19 2002
copyright : (C) 2002 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. *
* *
***************************************************************************/
#include "config.h"
#include <errno.h>
#include <new>
#include <QPointer>
#include "libkwave/MessageBox.h"
#include "libkwave/PluginManager.h"
#include "libkwave/SignalManager.h"
#include "libkwave/String.h"
#include "FileInfoDialog.h"
#include "FileInfoPlugin.h"
KWAVE_PLUGIN(fileinfo, FileInfoPlugin)
//***************************************************************************
Kwave::FileInfoPlugin::FileInfoPlugin(QObject *parent,
const QVariantList &args)
:Kwave::Plugin(parent, args)
{
}
//***************************************************************************
Kwave::FileInfoPlugin::~FileInfoPlugin()
{
}
//***************************************************************************
QStringList *Kwave::FileInfoPlugin::setup(QStringList &)
{
Kwave::FileInfo oldInfo(signalManager().metaData());
// create the setup dialog
QPointer<Kwave::FileInfoDialog> dialog =
new(std::nothrow) Kwave::FileInfoDialog(parentWidget(), oldInfo);
Q_ASSERT(dialog);
if (!dialog) return nullptr;
QStringList *list = new(std::nothrow) QStringList();
Q_ASSERT(list);
if (list && dialog->exec() && dialog) {
// user has pressed "OK" -> apply the new properties
apply(dialog->info());
} else {
// user pressed "Cancel"
delete list;
list = nullptr;
}
delete dialog;
return list;
}
//***************************************************************************
void Kwave::FileInfoPlugin::apply(Kwave::FileInfo &new_info)
{
Kwave::FileInfo old_info(signalManager().metaData());
if (old_info == new_info) return; // nothing to do
/* sample rate */
if (!qFuzzyCompare(old_info.rate(), new_info.rate())) {
// sample rate changed -> only change rate or resample ?
double new_rate = new_info.rate();
int res = Kwave::MessageBox::questionYesNoCancel(parentWidget(),
i18n("You have changed the sample rate. Do you want to convert "
"the whole file to the new sample rate or do "
"you only want to set the rate information in order "
"to repair a damaged file? Note: changing only the sample "
"rate can cause \"Mickey Mouse\" effects."),
QString(),
i18n("&Convert"),
i18n("&Set Rate"));
if (res == KMessageBox::PrimaryAction) {
// Yes -> resample
// take over all properties except the new sample rate, this will
// be detected and changed in the sample rate plugin
new_info.setRate(old_info.rate());
if (new_info != old_info) {
signalManager().setFileInfo(new_info, true);
} // else: nothing except sample rate changed
// NOTE: this command could be executed asynchronously, thus
// we cannot change the sample rate afterwards
emitCommand(_("plugin:execute(samplerate,%1,all)").arg(new_rate));
return;
} else if (res == KMessageBox::SecondaryAction) {
// No -> only change the rate in the file info
new_info.setRate(new_rate);
} else {
// canceled -> use old sample rate
new_info.setRate(old_info.rate());
}
}
// just copy all other properties
if (new_info != old_info) {
signalManager().setFileInfo(new_info, true);
}
}
//***************************************************************************
#include "FileInfoPlugin.moc"
//***************************************************************************
//***************************************************************************
#include "moc_FileInfoPlugin.cpp"
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