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Diffstat (limited to 'src/gui/configuration/AudioPropertiesPage.cpp')
| -rw-r--r-- | src/gui/configuration/AudioPropertiesPage.cpp | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/src/gui/configuration/AudioPropertiesPage.cpp b/src/gui/configuration/AudioPropertiesPage.cpp new file mode 100644 index 0000000..65d574e --- /dev/null +++ b/src/gui/configuration/AudioPropertiesPage.cpp @@ -0,0 +1,184 @@ +/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ + +/* + Rosegarden + A MIDI and audio sequencer and musical notation editor. + + This program is Copyright 2000-2008 + Guillaume Laurent <[email protected]>, + Chris Cannam <[email protected]>, + Richard Bown <[email protected]> + + The moral rights of Guillaume Laurent, Chris Cannam, and Richard + Bown to claim authorship of this work have been asserted. + + Other copyrights also apply to some parts of this work. Please + see the AUTHORS file and individual file headers for details. + + 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. See the file + COPYING included with this distribution for more information. +*/ + + +#include "AudioPropertiesPage.h" + +#include "misc/Strings.h" +#include "ConfigurationPage.h" +#include "document/RosegardenGUIDoc.h" +#include "gui/application/RosegardenApplication.h" +#include "gui/studio/AudioPluginManager.h" +#include "sound/AudioFileManager.h" +#include "TabbedConfigurationPage.h" +#include <kconfig.h> +#include <kdiskfreesp.h> +#include <kfiledialog.h> +#include <kfile.h> +#include <qcstring.h> +#include <qdatastream.h> +#include <qdialog.h> +#include <qframe.h> +#include <qlabel.h> +#include <qpushbutton.h> +#include <qstring.h> +#include <qtabwidget.h> +#include <qwidget.h> +#include <qlayout.h> + + +namespace Rosegarden +{ + +AudioPropertiesPage::AudioPropertiesPage(RosegardenGUIDoc *doc, + QWidget *parent, + const char *name) + : TabbedConfigurationPage(doc, parent, name) +{ + AudioFileManager &afm = doc->getAudioFileManager(); + + QFrame *frame = new QFrame(m_tabWidget); + QGridLayout *layout = new QGridLayout(frame, 4, 3, 10, 5); + layout->addWidget(new QLabel(i18n("Audio file path:"), frame), 0, 0); + m_path = new QLabel(QString(afm.getAudioPath().c_str()), frame); + layout->addWidget(m_path, 0, 1); + + m_changePathButton = + new QPushButton(i18n("Choose..."), frame); + + layout->addWidget(m_changePathButton, 0, 2); + + m_diskSpace = new QLabel(frame); + layout->addWidget(new QLabel(i18n("Disk space remaining:"), frame), 1, 0); + layout->addWidget(m_diskSpace, 1, 1); + + m_minutesAtStereo = new QLabel(frame); + layout->addWidget( + new QLabel(i18n("Equivalent minutes of 16-bit stereo:"), + frame), 2, 0); + + layout->addWidget(m_minutesAtStereo, 2, 1, AlignCenter); + + layout->setRowStretch(3, 2); + + calculateStats(); + + connect(m_changePathButton, SIGNAL(released()), + SLOT(slotFileDialog())); + + addTab(frame, i18n("Modify audio path")); +} + +void +AudioPropertiesPage::calculateStats() +{ + // This stolen from KDE libs kfile/kpropertiesdialog.cpp + // + QString mountPoint = KIO::findPathMountPoint(m_path->text()); + KDiskFreeSp * job = new KDiskFreeSp; + connect(job, SIGNAL(foundMountPoint(const QString&, unsigned long, unsigned long, + unsigned long)), + this, SLOT(slotFoundMountPoint(const QString&, unsigned long, unsigned long, + unsigned long))); + job->readDF(mountPoint); +} + +void +AudioPropertiesPage::slotFoundMountPoint(const QString&, + unsigned long kBSize, + unsigned long /*kBUsed*/, + unsigned long kBAvail ) +{ + m_diskSpace->setText(i18n("%1 out of %2 (%3% used)") + .arg(KIO::convertSizeFromKB(kBAvail)) + .arg(KIO::convertSizeFromKB(kBSize)) + .arg( 100 - (int)(100.0 * kBAvail / kBSize) )); + + + AudioPluginManager *apm = m_doc->getPluginManager(); + + int sampleRate = 48000; + QCString replyType; + QByteArray replyData; + + if (rgapp->sequencerCall("getSampleRate()", replyType, replyData)) { + + QDataStream streamIn(replyData, IO_ReadOnly); + unsigned int result; + streamIn >> result; + sampleRate = result; + } + + // Work out total bytes and divide this by the sample rate times the + // number of channels (2) times the number of bytes per sample (2) + // times 60 seconds. + // + float stereoMins = ( float(kBAvail) * 1024.0 ) / + ( float(sampleRate) * 2.0 * 2.0 * 60.0 ); + QString minsStr; + minsStr.sprintf("%8.1f", stereoMins); + + m_minutesAtStereo-> + setText(QString("%1 %2 %3Hz").arg(minsStr) + .arg(i18n("minutes at")) + .arg(sampleRate)); +} + +void +AudioPropertiesPage::slotFileDialog() +{ + AudioFileManager &afm = m_doc->getAudioFileManager(); + + KFileDialog *fileDialog = new KFileDialog(QString(afm.getAudioPath().c_str()), + QString::null, + this, "file dialog", true); + fileDialog->setMode(KFile::Directory); + + connect(fileDialog, SIGNAL(fileSelected(const QString&)), + SLOT(slotFileSelected(const QString&))); + + connect(fileDialog, SIGNAL(destroyed()), + SLOT(slotDirectoryDialogClosed())); + + if (fileDialog->exec() == QDialog::Accepted) { + m_path->setText(fileDialog->selectedFile()); + calculateStats(); + } + delete fileDialog; +} + +void +AudioPropertiesPage::apply() +{ + AudioFileManager &afm = m_doc->getAudioFileManager(); + QString newDir = m_path->text(); + + if (!newDir.isNull()) { + afm.setAudioPath(qstrtostr(newDir)); + m_doc->slotDocumentModified(); + } +} + +} +#include "AudioPropertiesPage.moc" |