Added old abandoned KDE3 version of the RoseGarden MIDI tool

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/rosegarden@1097595 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

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   <glaurent@telegraph-road.org>,
+        Chris Cannam        <cannam@all-day-breakfast.com>,
+        Richard Bown        <richard.bown@ferventsoftware.com>
+ 
+    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"