--- qsampler/trunk/src/qsamplerChannel.cpp 2004/09/29 13:12:45 264 +++ qsampler/trunk/src/qsamplerChannel.cpp 2005/02/11 15:36:06 371 @@ -1,7 +1,7 @@ // qsamplerChannel.cpp // /**************************************************************************** - Copyright (C) 2003-2004, rncbc aka Rui Nuno Capela. All rights reserved. + Copyright (C) 2003-2005, rncbc aka Rui Nuno Capela. All rights reserved. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License @@ -22,9 +22,18 @@ #include "qsamplerChannel.h" #include "qsamplerMainForm.h" +#include "qsamplerChannelForm.h" #include "config.h" +#include + +#ifdef CONFIG_LIBGIG +#include "gig.h" +#endif + +#define QSAMPLER_INSTRUMENT_MAX 8 + //------------------------------------------------------------------------- // qsamplerChannel - Sampler channel structure. @@ -37,7 +46,8 @@ m_iChannelID = iChannelID; // m_sEngineName = QObject::tr("(No engine)"); -// m_sInstrumentFile = QObject::tr("(No instrument)"); +// m_sInstrumentName = QObject::tr("(No instrument)"); +// m_sInstrumentFile = m_sInstrumentName; m_iInstrumentNr = -1; m_iInstrumentStatus = -1; m_sMidiDriver = "Alsa"; // DEPRECATED. @@ -76,6 +86,50 @@ } +// Create a new sampler channel, if not already. +bool qsamplerChannel::addChannel (void) +{ + if (client() == NULL) + return false; + + // Are we a new channel? + if (m_iChannelID < 0) { + m_iChannelID = ::lscp_add_channel(client()); + if (m_iChannelID < 0) { + appendMessagesClient("lscp_add_channel"); + appendMessagesError(QObject::tr("Could not create the new channel.\n\nSorry.")); + } // Otherwise it's created... + else appendMessages(QObject::tr("Channel %1 created.").arg(m_iChannelID)); + } + + // Return whether we're a valid channel... + return (m_iChannelID >= 0); +} + + +// Remove sampler channel. +bool qsamplerChannel::removeChannel (void) +{ + if (client() == NULL) + return false; + + // Are we an existing channel? + if (m_iChannelID >= 0) { + if (::lscp_remove_channel(client(), m_iChannelID) != LSCP_OK) { + appendMessagesClient("lscp_remove_channel"); + appendMessagesError(QObject::tr("Could not remove channel.\n\nSorry.")); + } else { + // Otherwise it's removed. + appendMessages(QObject::tr("Channel %1 removed.").arg(m_iChannelID)); + m_iChannelID = -1; + } + } + + // Return whether we've removed the channel... + return (m_iChannelID < 0); +} + + // Channel-ID (aka Sammpler-Channel) accessors. int qsamplerChannel::channelID (void) { @@ -85,8 +139,13 @@ void qsamplerChannel::setChannelID ( int iChannelID ) { m_iChannelID = iChannelID; +} - updateChannelInfo(); + +// Readable channel name. +QString qsamplerChannel::channelName (void) +{ + return (m_iChannelID < 0 ? QObject::tr("New Channel") : QObject::tr("Channel %1").arg(m_iChannelID)); } @@ -98,7 +157,7 @@ bool qsamplerChannel::loadEngine ( const QString& sEngineName ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; if (::lscp_load_engine(client(), sEngineName.latin1(), m_iChannelID) != LSCP_OK) { @@ -111,6 +170,12 @@ } +// Instrument name accessor. +QString& qsamplerChannel::instrumentName (void) +{ + return m_sInstrumentName; +} + // Instrument filename accessor. QString& qsamplerChannel::instrumentFile (void) { @@ -132,7 +197,7 @@ // Instrument file loader. bool qsamplerChannel::loadInstrument ( const QString& sInstrumentFile, int iInstrumentNr ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; if (::lscp_load_instrument_non_modal(client(), sInstrumentFile.latin1(), iInstrumentNr, m_iChannelID) != LSCP_OK) { @@ -140,6 +205,7 @@ return false; } + m_sInstrumentName = getInstrumentName(sInstrumentFile, iInstrumentNr, true); m_sInstrumentFile = sInstrumentFile; m_iInstrumentNr = iInstrumentNr; m_iInstrumentStatus = 0; @@ -156,7 +222,7 @@ bool qsamplerChannel::setMidiDriver ( const QString& sMidiDriver ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; if (::lscp_set_channel_midi_type(client(), m_iChannelID, sMidiDriver.latin1()) != LSCP_OK) { @@ -177,7 +243,7 @@ bool qsamplerChannel::setMidiDevice ( int iMidiDevice ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; if (::lscp_set_channel_midi_device(client(), m_iChannelID, iMidiDevice) != LSCP_OK) { @@ -198,7 +264,7 @@ bool qsamplerChannel::setMidiPort ( int iMidiPort ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; if (::lscp_set_channel_midi_port(client(), m_iChannelID, iMidiPort) != LSCP_OK) { @@ -219,7 +285,7 @@ bool qsamplerChannel::setMidiChannel ( int iMidiChannel ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; if (::lscp_set_channel_midi_channel(client(), m_iChannelID, iMidiChannel) != LSCP_OK) { @@ -240,7 +306,7 @@ bool qsamplerChannel::setAudioDevice ( int iAudioDevice ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; if (::lscp_set_channel_audio_device(client(), m_iChannelID, iAudioDevice) != LSCP_OK) { @@ -261,7 +327,7 @@ bool qsamplerChannel::setAudioDriver ( const QString& sAudioDriver ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; if (::lscp_set_channel_audio_type(client(), m_iChannelID, sAudioDriver.latin1()) != LSCP_OK) { @@ -282,7 +348,7 @@ bool qsamplerChannel::setVolume ( float fVolume ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; if (::lscp_set_channel_volume(client(), m_iChannelID, fVolume) != LSCP_OK) { @@ -295,76 +361,186 @@ } +// Istrument name remapper. +void qsamplerChannel::updateInstrumentName (void) +{ + m_sInstrumentName = getInstrumentName(m_sInstrumentFile, + m_iInstrumentNr, (options() && options()->bInstrumentNames)); +} + + // Update whole channel info state. -void qsamplerChannel::updateChannelInfo (void) +bool qsamplerChannel::updateChannelInfo (void) { - // Check if we're up and connected. - if (client() == NULL) - return; + if (client() == NULL || m_iChannelID < 0) + return false; // Read channel information. lscp_channel_info_t *pChannelInfo = ::lscp_get_channel_info(client(), m_iChannelID); if (pChannelInfo == NULL) { appendMessagesClient("lscp_get_channel_info"); appendMessagesError(QObject::tr("Could not get channel information.\n\nSorry.")); - } else { - // Cache in channel information. - m_sEngineName = pChannelInfo->engine_name; - m_sInstrumentFile = pChannelInfo->instrument_file; - m_iInstrumentNr = pChannelInfo->instrument_nr; - m_iInstrumentStatus = pChannelInfo->instrument_status; - m_iMidiDevice = pChannelInfo->midi_device; - m_iMidiPort = pChannelInfo->midi_port; - m_iMidiChannel = pChannelInfo->midi_channel; - m_iAudioDevice = pChannelInfo->audio_device; - m_fVolume = pChannelInfo->volume; - // Some sanity checks. - if (m_sEngineName == "NONE") - m_sEngineName = QString::null; - if (m_sInstrumentFile == "NONE") - m_sInstrumentFile = QString::null; + return false; } + + // First, check if intrument name has changed, + // taking care that instrument name lookup might be expensive, + // so we better make it only once and when really needed... + if ((m_sInstrumentFile != pChannelInfo->instrument_file) || + (m_iInstrumentNr != pChannelInfo->instrument_nr)) { + m_sInstrumentFile = pChannelInfo->instrument_file; + m_iInstrumentNr = pChannelInfo->instrument_nr; + updateInstrumentName(); + } + // Cache in other channel information. + m_sEngineName = pChannelInfo->engine_name; + m_iInstrumentStatus = pChannelInfo->instrument_status; + m_iMidiDevice = pChannelInfo->midi_device; + m_iMidiPort = pChannelInfo->midi_port; + m_iMidiChannel = pChannelInfo->midi_channel; + m_iAudioDevice = pChannelInfo->audio_device; + m_fVolume = pChannelInfo->volume; + // Some sanity checks. + if (m_sEngineName == "NONE") + m_sEngineName = QString::null; + if (m_sInstrumentFile == "NONE") { + m_sInstrumentFile = QString::null; + m_sInstrumentName = QString::null; + } + + return true; } // Reset channel method. -void qsamplerChannel::resetChannel (void) +bool qsamplerChannel::resetChannel (void) { - // Check if we're up and connected. - if (client() == NULL) - return; + if (client() == NULL || m_iChannelID < 0) + return false; - if (::lscp_reset_channel(client(), m_iChannelID) != LSCP_OK) + if (::lscp_reset_channel(client(), m_iChannelID) != LSCP_OK) { appendMessagesClient("lscp_reset_channel"); - else - appendMessages(QObject::tr("Channel %1 reset.").arg(m_iChannelID)); + return false; + } + + appendMessages(QObject::tr("Channel %1 reset.").arg(m_iChannelID)); + return true; +} + + +// Channel setup dialog form. +bool qsamplerChannel::channelSetup ( QWidget *pParent ) +{ + bool bResult = false; + + qsamplerChannelForm *pChannelForm = new qsamplerChannelForm(pParent); + if (pChannelForm) { + pChannelForm->setup(this); + bResult = pChannelForm->exec(); + delete pChannelForm; + } + + return bResult; } // Redirected messages output methods. void qsamplerChannel::appendMessages( const QString& s ) { - m_pMainForm->appendMessages(s); + if (m_pMainForm) m_pMainForm->appendMessages(s); } void qsamplerChannel::appendMessagesColor( const QString& s, const QString& c ) { - m_pMainForm->appendMessagesColor(s, c); + if (m_pMainForm) m_pMainForm->appendMessagesColor(s, c); } void qsamplerChannel::appendMessagesText( const QString& s ) { - m_pMainForm->appendMessagesText(s); + if (m_pMainForm) m_pMainForm->appendMessagesText(s); } void qsamplerChannel::appendMessagesError( const QString& s ) { - m_pMainForm->appendMessagesError(s); + if (m_pMainForm) m_pMainForm->appendMessagesError(s); } void qsamplerChannel::appendMessagesClient( const QString& s ) { - m_pMainForm->appendMessagesClient(s); + if (m_pMainForm) m_pMainForm->appendMessagesClient(s); +} + + +// Context menu event handler. +void qsamplerChannel::contextMenuEvent( QContextMenuEvent *pEvent ) +{ + if (m_pMainForm) m_pMainForm->contextMenuEvent(pEvent); +} + + +// Retrieve the instrument list of a instrument file (.gig). +QStringList qsamplerChannel::getInstrumentList( const QString& sInstrumentFile, + bool bInstrumentNames ) +{ + QFileInfo fileinfo(sInstrumentFile); + QString sInstrumentName = fileinfo.fileName(); + QStringList instlist; + + if (fileinfo.exists()) { +#ifdef CONFIG_LIBGIG + if (bInstrumentNames) { + RIFF::File *pRiff = new RIFF::File(sInstrumentFile); + gig::File *pGig = new gig::File(pRiff); + gig::Instrument *pInstrument = pGig->GetFirstInstrument(); + while (pInstrument) { + instlist.append((pInstrument->pInfo)->Name.c_str()); + pInstrument = pGig->GetNextInstrument(); + } + delete pGig; + delete pRiff; + } + else +#endif + for (int iInstrumentNr = 0; iInstrumentNr < QSAMPLER_INSTRUMENT_MAX; iInstrumentNr++) + instlist.append(sInstrumentName + " [" + QString::number(iInstrumentNr) + "]"); + } + else instlist.append(sInstrumentName); + + return instlist; +} + + +// Retrieve the spacific instrument name of a instrument file (.gig), given its index. +QString qsamplerChannel::getInstrumentName( const QString& sInstrumentFile, + int iInstrumentNr, bool bInstrumentNames ) +{ + QFileInfo fileinfo(sInstrumentFile); + QString sInstrumentName = fileinfo.fileName(); + + if (fileinfo.exists()) { +#ifdef CONFIG_LIBGIG + if (bInstrumentNames) { + RIFF::File *pRiff = new RIFF::File(sInstrumentFile); + gig::File *pGig = new gig::File(pRiff); + int iIndex = 0; + gig::Instrument *pInstrument = pGig->GetFirstInstrument(); + while (pInstrument) { + if (iIndex == iInstrumentNr) { + sInstrumentName = (pInstrument->pInfo)->Name.c_str(); + break; + } + iIndex++; + pInstrument = pGig->GetNextInstrument(); + } + delete pGig; + delete pRiff; + } + else +#endif + sInstrumentName += " [" + QString::number(iInstrumentNr) + "]"; + } + + return sInstrumentName; }