// qsamplerOptions.cpp
//
/****************************************************************************
   Copyright (C) 2004-2007, rncbc aka Rui Nuno Capela. All rights reserved.
   Copyright (C) 2007, Christian Schoenebeck

   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.

*****************************************************************************/

#include "qsamplerAbout.h"
#include "qsamplerOptions.h"

#include <QTextStream>
#include <QComboBox>

#include <lscp/client.h>

#ifdef CONFIG_LIBGIG
#include <gig.h>
#endif


//-------------------------------------------------------------------------
// qsamplerOptions - Prototype settings structure.
//

// Constructor.
qsamplerOptions::qsamplerOptions (void)
	: m_settings(QSAMPLER_DOMAIN, QSAMPLER_TITLE)
{
    // Begin into general options group.
    m_settings.beginGroup("/Options");

    // Load server options...
    m_settings.beginGroup("/Server");
    sServerHost    = m_settings.value("/ServerHost", "localhost").toString();
    iServerPort    = m_settings.value("/ServerPort", 8888).toInt();
    iServerTimeout = m_settings.value("/ServerTimeout", 1000).toInt();
    bServerStart   = m_settings.value("/ServerStart", true).toBool();
    sServerCmdLine = m_settings.value("/ServerCmdLine", "linuxsampler").toString();
    iStartDelay    = m_settings.value("/StartDelay", 3).toInt();
    m_settings.endGroup();

    // Load display options...
    m_settings.beginGroup("/Display");
    sDisplayFont     = m_settings.value("/DisplayFont").toString();
    bDisplayEffect   = m_settings.value("/DisplayEffect", true).toBool();
    bAutoRefresh     = m_settings.value("/AutoRefresh", true).toBool();
    iAutoRefreshTime = m_settings.value("/AutoRefreshTime", 1000).toInt();
    iMaxVolume       = m_settings.value("/MaxVolume", 100).toInt();
    sMessagesFont    = m_settings.value("/MessagesFont").toString();
    bMessagesLimit   = m_settings.value("/MessagesLimit", true).toBool();
    iMessagesLimitLines = m_settings.value("/MessagesLimitLines", 1000).toInt();
    bConfirmRemove   = m_settings.value("/ConfirmRemove", true).toBool();
    bKeepOnTop       = m_settings.value("/KeepOnTop", true).toBool();
    bStdoutCapture   = m_settings.value("/StdoutCapture", true).toBool();
    bCompletePath    = m_settings.value("/CompletePath", true).toBool();
    iMaxRecentFiles  = m_settings.value("/MaxRecentFiles", 5).toInt();
    bInstrumentNames = m_settings.value("/InstrumentNames", false).toBool();
    m_settings.endGroup();

    // And go into view options group.
    m_settings.beginGroup("/View");
    bMenubar     = m_settings.value("/Menubar", true).toBool();
    bToolbar     = m_settings.value("/Toolbar", true).toBool();
    bStatusbar   = m_settings.value("/Statusbar", true).toBool();
    bAutoArrange = m_settings.value("/AutoArrange", true).toBool();
    m_settings.endGroup();

    m_settings.endGroup(); // Options group.

	// Recent file list.
	recentFiles.clear();
	m_settings.beginGroup("/RecentFiles");
	for (int iFile = 0; iFile < iMaxRecentFiles; iFile++) {
		QString sFilename = m_settings.value(
			"/File" + QString::number(iFile + 1)).toString();
		if (!sFilename.isEmpty())
			recentFiles.append(sFilename);
	}
	m_settings.endGroup();

    // Last but not least, get the default directories.
    m_settings.beginGroup("/Default");
    sSessionDir    = m_settings.value("/SessionDir").toString();
    sInstrumentDir = m_settings.value("/InstrumentDir").toString();
    sEngineName    = m_settings.value("/EngineName").toString();
    sAudioDriver   = m_settings.value("/AudioDriver").toString();
    sMidiDriver    = m_settings.value("/MidiDriver").toString();
    iMidiMap       = m_settings.value("/MidiMap",  0).toInt();
    iMidiBank      = m_settings.value("/MidiBank", 0).toInt();
    iMidiProg      = m_settings.value("/MidiProg", 0).toInt();
    iVolume        = m_settings.value("/Volume", 100).toInt();
    iLoadMode      = m_settings.value("/Loadmode", 0).toInt();
    m_settings.endGroup();
}


// Default Destructor.
qsamplerOptions::~qsamplerOptions (void)
{
    // Make program version available in the future.
    m_settings.beginGroup("/Program");
    m_settings.setValue("/Version", QSAMPLER_VERSION);
    m_settings.endGroup();

    // And go into general options group.
    m_settings.beginGroup("/Options");

    // Save server options.
    m_settings.beginGroup("/Server");
    m_settings.setValue("/ServerHost", sServerHost);
    m_settings.setValue("/ServerPort", iServerPort);
    m_settings.setValue("/ServerTimeout", iServerTimeout);
    m_settings.setValue("/ServerStart", bServerStart);
    m_settings.setValue("/ServerCmdLine", sServerCmdLine);
    m_settings.setValue("/StartDelay", iStartDelay);
    m_settings.endGroup();

    // Save display options.
    m_settings.beginGroup("/Display");
    m_settings.setValue("/DisplayFont", sDisplayFont);
    m_settings.setValue("/DisplayEffect", bDisplayEffect);
    m_settings.setValue("/AutoRefresh", bAutoRefresh);
    m_settings.setValue("/AutoRefreshTime", iAutoRefreshTime);
    m_settings.setValue("/MaxVolume", iMaxVolume);
    m_settings.setValue("/MessagesFont", sMessagesFont);
    m_settings.setValue("/MessagesLimit", bMessagesLimit);
    m_settings.setValue("/MessagesLimitLines", iMessagesLimitLines);
    m_settings.setValue("/ConfirmRemove", bConfirmRemove);
    m_settings.setValue("/KeepOnTop", bKeepOnTop);
    m_settings.setValue("/StdoutCapture", bStdoutCapture);
    m_settings.setValue("/CompletePath", bCompletePath);
    m_settings.setValue("/MaxRecentFiles", iMaxRecentFiles);
    m_settings.setValue("/InstrumentNames", bInstrumentNames);
    m_settings.endGroup();

    // View options group.
    m_settings.beginGroup("/View");
    m_settings.setValue("/Menubar", bMenubar);
    m_settings.setValue("/Toolbar", bToolbar);
    m_settings.setValue("/Statusbar", bStatusbar);
    m_settings.setValue("/AutoArrange", bAutoArrange);
    m_settings.endGroup();

    m_settings.endGroup(); // Options group.

    // Recent file list.
	int iFile = 0;
	m_settings.beginGroup("/RecentFiles");
	QStringListIterator iter(recentFiles);
	while (iter.hasNext())
		m_settings.setValue("/File" + QString::number(++iFile), iter.next());
	m_settings.endGroup();

    // Default directories.
    m_settings.beginGroup("/Default");
    m_settings.setValue("/SessionDir", sSessionDir);
    m_settings.setValue("/InstrumentDir", sInstrumentDir);
    m_settings.setValue("/EngineName", sEngineName);
    m_settings.setValue("/AudioDriver", sAudioDriver);
    m_settings.setValue("/MidiDriver", sMidiDriver);
    m_settings.setValue("/MidiMap", iMidiMap);
    m_settings.setValue("/MidiBank", iMidiBank);
    m_settings.setValue("/MidiProg", iMidiProg);
    m_settings.setValue("/Volume", iVolume);
    m_settings.setValue("/Loadmode", iLoadMode);
    m_settings.endGroup();
}

//-------------------------------------------------------------------------
// Settings accessor.
//

QSettings& qsamplerOptions::settings (void)
{
    return m_settings;
}


//-------------------------------------------------------------------------
// Command-line argument stuff.
//

// Help about command line options.
void qsamplerOptions::print_usage ( const char *arg0 )
{
	QTextStream out(stderr);
	out << QObject::tr("Usage: %1 [options] [session-file]\n\n"
		QSAMPLER_TITLE " - " QSAMPLER_SUBTITLE "\n\n"
		"Options:\n\n"
		"  -s, --start\n\tStart linuxsampler server locally\n\n"
		"  -h, --hostname\n\tSpecify linuxsampler server hostname\n\n"
		"  -p, --port\n\tSpecify linuxsampler server port number\n\n"
		"  -?, --help\n\tShow help about command line options\n\n"
		"  -v, --version\n\tShow version information\n\n")
		.arg(arg0);
}


// Parse command line arguments into m_settings.
bool qsamplerOptions::parse_args ( int argc, char **argv )
{
	QTextStream out(stderr);
    const QString sEol = "\n\n";
    int iCmdArgs = 0;

    for (int i = 1; i < argc; i++) {

        if (iCmdArgs > 0) {
            sSessionFile += " ";
            sSessionFile += argv[i];
            iCmdArgs++;
            continue;
        }

        QString sArg = argv[i];
        QString sVal = QString::null;
        int iEqual = sArg.indexOf("=");
        if (iEqual >= 0) {
            sVal = sArg.right(sArg.length() - iEqual - 1);
            sArg = sArg.left(iEqual);
        }
        else if (i < argc)
            sVal = argv[i + 1];

        if (sArg == "-s" || sArg == "--start") {
            bServerStart = true;
        }
        else if (sArg == "-h" || sArg == "--hostname") {
            if (sVal.isNull()) {
                out << QObject::tr("Option -h requires an argument (hostname).") + sEol;
                return false;
            }
            sServerHost = sVal;
            if (iEqual < 0)
                i++;
        }
        else if (sArg == "-p" || sArg == "--port") {
            if (sVal.isNull()) {
                out << QObject::tr("Option -p requires an argument (port).") + sEol;
                return false;
            }
            iServerPort = sVal.toInt();
            if (iEqual < 0)
                i++;
        }
        else if (sArg == "-?" || sArg == "--help") {
            print_usage(argv[0]);
            return false;
        }
        else if (sArg == "-v" || sArg == "--version") {
			out << QObject::tr("Qt: %1\n").arg(qVersion());
#ifdef CONFIG_LIBGIG
			out << QString("%1: %2\n")
				.arg(gig::libraryName().c_str())
				.arg(gig::libraryVersion().c_str());
#endif
			out << QString("%1: %2\n")
				.arg(::lscp_client_package())
				.arg(::lscp_client_version());
			out << QObject::tr(QSAMPLER_TITLE ": %1\n").arg(QSAMPLER_VERSION);
            return false;
        }
        else {
            // If we don't have one by now,
            // this will be the startup sesion file...
            sSessionFile += sArg;
            iCmdArgs++;
        }
    }

    // Alright with argument parsing.
    return true;
}


//---------------------------------------------------------------------------
// Widget geometry persistence helper methods.

void qsamplerOptions::loadWidgetGeometry ( QWidget *pWidget )
{
	// Try to restore old form window positioning.
	if (pWidget) {
		QPoint fpos;
		QSize  fsize;
		bool bVisible;
		m_settings.beginGroup("/Geometry/" + pWidget->objectName());
		fpos.setX(m_settings.value("/x", -1).toInt());
		fpos.setY(m_settings.value("/y", -1).toInt());
		fsize.setWidth(m_settings.value("/width", -1).toInt());
		fsize.setHeight(m_settings.value("/height", -1).toInt());
		bVisible = m_settings.value("/visible", false).toBool();
		m_settings.endGroup();
		if (fpos.x() > 0 && fpos.y() > 0)
			pWidget->move(fpos);
		if (fsize.width() > 0 && fsize.height() > 0)
			pWidget->resize(fsize);
		else
			pWidget->adjustSize();
		if (bVisible)
			pWidget->show();
		else
			pWidget->hide();
	}
}


void qsamplerOptions::saveWidgetGeometry ( QWidget *pWidget )
{
	// Try to save form window position...
	// (due to X11 window managers ideossincrasies, we better
	// only save the form geometry while its up and visible)
	if (pWidget) {
		m_settings.beginGroup("/Geometry/" + pWidget->objectName());
		bool bVisible = pWidget->isVisible();
		const QPoint& fpos  = pWidget->pos();
		const QSize&  fsize = pWidget->size();
		m_settings.setValue("/x", fpos.x());
		m_settings.setValue("/y", fpos.y());
		m_settings.setValue("/width", fsize.width());
		m_settings.setValue("/height", fsize.height());
		m_settings.setValue("/visible", bVisible);
		m_settings.endGroup();
	}
}


//---------------------------------------------------------------------------
// Combo box history persistence helper implementation.

void qsamplerOptions::loadComboBoxHistory ( QComboBox *pComboBox, int iLimit )
{
	// Load combobox list from configuration settings file...
	m_settings.beginGroup("/History/" + pComboBox->objectName());

	if (m_settings.childKeys().count() > 0) {
		pComboBox->setUpdatesEnabled(false);
		pComboBox->setDuplicatesEnabled(false);
		pComboBox->clear();
		for (int i = 0; i < iLimit; i++) {
			const QString& sText = m_settings.value(
				"/Item" + QString::number(i + 1)).toString();
			if (sText.isEmpty())
				break;
			pComboBox->addItem(sText);
		}
		pComboBox->setUpdatesEnabled(true);
	}

	m_settings.endGroup();
}


void qsamplerOptions::saveComboBoxHistory ( QComboBox *pComboBox, int iLimit )
{
	// Add current text as latest item...
	const QString& sCurrentText = pComboBox->currentText();
	int iCount = pComboBox->count();
	for (int i = 0; i < iCount; i++) {
		const QString& sText = pComboBox->itemText(i);
		if (sText == sCurrentText) {
			pComboBox->removeItem(i);
			iCount--;
			break;
		}
	}
	while (iCount >= iLimit)
		pComboBox->removeItem(--iCount);
	pComboBox->insertItem(0, sCurrentText);
	iCount++;

	// Save combobox list to configuration settings file...
	m_settings.beginGroup("/History/" + pComboBox->objectName());
	for (int i = 0; i < iCount; i++) {
		const QString& sText = pComboBox->itemText(i);
		if (sText.isEmpty())
			break;
		m_settings.setValue("/Item" + QString::number(i + 1), sText);
	}
	m_settings.endGroup();
}


// end of qsamplerOptions.cpp