trunk/src/qsamplerChannelForm.ui.h

// qsamplerChannelForm.ui.h
//
// ui.h extension file, included from the uic-generated form implementation.
/****************************************************************************
   Copyright (C) 2004-2005, 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
   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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

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

#include "qsamplerAbout.h"
#include "qsamplerDeviceForm.h"

#include <qvalidator.h>
#include <qmessagebox.h>
#include <qfiledialog.h>
#include <qfileinfo.h>
#include <qlistbox.h>


// Kind of constructor.
void qsamplerChannelForm::init (void)
{
        // Initialize locals.
        m_pChannel = NULL;

        m_iDirtySetup = 0;
        m_iDirtyCount = 0;

        m_midiDevices.setAutoDelete(true);
        m_audioDevices.setAutoDelete(true);

        m_pDeviceForm = NULL;

        // Try to restore normal window positioning.
        adjustSize();
}


// Kind of destructor.
void qsamplerChannelForm::destroy (void)
{
        if (m_pDeviceForm)
                delete m_pDeviceForm;
        m_pDeviceForm = NULL;
}


// Channel dialog setup formal initializer.
void qsamplerChannelForm::setup ( qsamplerChannel *pChannel )
{
        m_pChannel = pChannel;

        m_iDirtySetup = 0;
        m_iDirtyCount = 0;

        if (m_pChannel == NULL)
                return;

        // It can be a brand new channel, remember?
        bool bNew = (m_pChannel->channelID() < 0);
        setCaption(QSAMPLER_TITLE ": " + m_pChannel->channelName());

        // Check if we're up and connected.
        if (m_pChannel->client() == NULL)
                return;

        qsamplerOptions *pOptions = m_pChannel->options();
        if (pOptions == NULL)
                return;

        // Avoid nested changes.
        m_iDirtySetup++;

        // Load combo box history...
        pOptions->loadComboBoxHistory(InstrumentFileComboBox);

        // Notify.that we've just changed one audio route.
        QObject::connect(AudioRoutingTable, SIGNAL(valueChanged(int,int)),
                this, SLOT(changeAudioRouting(int,int)));

        // Populate Engines list.
        const char **ppszEngines = ::lscp_list_available_engines(m_pChannel->client());
        if (ppszEngines) {
                EngineNameComboBox->clear();
                for (int iEngine = 0; ppszEngines[iEngine]; iEngine++)
                        EngineNameComboBox->insertItem(ppszEngines[iEngine]);
        }
        else m_pChannel->appendMessagesClient("lscp_list_available_engines");

        // Populate Audio output type list.
        AudioDriverComboBox->clear();
        AudioDriverComboBox->insertStringList(
                qsamplerDevice::getDrivers(m_pChannel->client(), qsamplerDevice::Audio));

        // Populate MIDI input type list.
        MidiDriverComboBox->clear();
        MidiDriverComboBox->insertStringList(
                qsamplerDevice::getDrivers(m_pChannel->client(), qsamplerDevice::Midi));

        // Read proper channel information,
        // and populate the channel form fields.

        // Engine name...
        QString sEngineName = pChannel->engineName();
        if (sEngineName.isEmpty() || bNew)
                sEngineName = pOptions->sEngineName;
        if (sEngineName.isEmpty())
                sEngineName = qsamplerChannel::noEngineName();
        if (EngineNameComboBox->listBox()->findItem(sEngineName,
                        Qt::ExactMatch | Qt::CaseSensitive) == NULL) {
                EngineNameComboBox->insertItem(sEngineName);
        }
        EngineNameComboBox->setCurrentText(sEngineName);
        // Instrument filename and index...
        QString sInstrumentFile = pChannel->instrumentFile();
        if (sInstrumentFile.isEmpty())
                sInstrumentFile = qsamplerChannel::noInstrumentName();
        InstrumentFileComboBox->setCurrentText(sInstrumentFile);
        InstrumentNrComboBox->clear();
        InstrumentNrComboBox->insertStringList(
                qsamplerChannel::getInstrumentList(sInstrumentFile,
                pOptions->bInstrumentNames));
        InstrumentNrComboBox->setCurrentItem(pChannel->instrumentNr());

        // MIDI input device...
        qsamplerDevice midiDevice(m_pChannel->mainForm(),
                qsamplerDevice::Midi, m_pChannel->midiDevice());
        // MIDI input driver...
        QString sMidiDriver = midiDevice.driverName();
        if (sMidiDriver.isEmpty() || bNew)
                sMidiDriver = pOptions->sMidiDriver.upper();
        if (!sMidiDriver.isEmpty()) {
                if (MidiDriverComboBox->listBox()->findItem(sMidiDriver,
                                Qt::ExactMatch | Qt::CaseSensitive) == NULL) {
                        MidiDriverComboBox->insertItem(sMidiDriver);
                }
                MidiDriverComboBox->setCurrentText(sMidiDriver);
        }
        selectMidiDriverItem(sMidiDriver);
        if (!bNew)
                MidiDeviceComboBox->setCurrentText(midiDevice.deviceName());
        selectMidiDeviceItem(MidiDeviceComboBox->currentItem());
        // MIDI input port...
        MidiPortSpinBox->setValue(pChannel->midiPort());
        // MIDI input channel...
        int iMidiChannel = pChannel->midiChannel();
        // When new, try to suggest a sensible MIDI channel...
        if (iMidiChannel < 0)
                iMidiChannel = (::lscp_get_channels(m_pChannel->client()) % 16);
        MidiChannelComboBox->setCurrentItem(iMidiChannel);

        // Audio output device...
        qsamplerDevice audioDevice(m_pChannel->mainForm(),
                qsamplerDevice::Audio, m_pChannel->audioDevice());
        // Audio output driver...
        QString sAudioDriver = audioDevice.driverName();
        if (sAudioDriver.isEmpty() || bNew)
                sAudioDriver = pOptions->sAudioDriver.upper();
        if (!sAudioDriver.isEmpty()) {
                if (AudioDriverComboBox->listBox()->findItem(sAudioDriver,
                                Qt::ExactMatch | Qt::CaseSensitive) == NULL) {
                        AudioDriverComboBox->insertItem(sAudioDriver);
                }
                AudioDriverComboBox->setCurrentText(sAudioDriver);
        }
        selectAudioDriverItem(sAudioDriver);
        if (!bNew)
                AudioDeviceComboBox->setCurrentText(audioDevice.deviceName());
        selectAudioDeviceItem(AudioDeviceComboBox->currentItem());

        // As convenient, make it ready on stabilizeForm() for
        // prompt acceptance, if we got the minimum required...
/*      if (sEngineName != qsamplerChannel::noEngineName() &&
                sInstrumentFile != qsamplerChannel::noInstrumentName())
                m_iDirtyCount++; */
        // Done.
        m_iDirtySetup--;
        stabilizeForm();
}


// Accept settings (OK button slot).
void qsamplerChannelForm::accept (void)
{
        if (m_pChannel == NULL)
                return;

        qsamplerOptions *pOptions = m_pChannel->options();
        if (pOptions == NULL)
                return;

        // We'll go for it!
        if (m_iDirtyCount > 0) {
                int iErrors = 0;
                // Are we a new channel?
                if (!m_pChannel->addChannel())
                        iErrors++;
                // Accept Audio driver or device selection...
                if (m_audioDevices.isEmpty()) {
                        if (!m_pChannel->setAudioDriver(AudioDriverComboBox->currentText()))
                                iErrors++;
                } else {
                        qsamplerDevice *pDevice = m_audioDevices.at(AudioDeviceComboBox->currentItem());
                        if (pDevice == NULL)
                                iErrors++;
                        else if (!m_pChannel->setAudioDevice(pDevice->deviceID()))
                                iErrors++;
                        else if (!m_audioRouting.isEmpty()) {
                                // Set the audio route changes...
                                qsamplerChannelRoutingMap::ConstIterator iter;
                                for (iter = m_audioRouting.begin();
                                                iter != m_audioRouting.end(); ++iter) {
                                        if (!m_pChannel->setAudioChannel(iter.key(), iter.data()))
                                                iErrors++;
                                }
                        }
                }
                // Accept MIDI driver or device selection...
                if (m_midiDevices.isEmpty()) {
                        if (!m_pChannel->setMidiDriver(MidiDriverComboBox->currentText()))
                                iErrors++;
                } else {
                        qsamplerDevice *pDevice = m_midiDevices.at(MidiDeviceComboBox->currentItem());
                        if (pDevice == NULL)
                                iErrors++;
                        else if (!m_pChannel->setMidiDevice(pDevice->deviceID()))
                                iErrors++;
                }
                // MIDI input port number...
                if (!m_pChannel->setMidiPort(MidiPortSpinBox->value()))
                        iErrors++;
                // MIDI input channel...
                if (!m_pChannel->setMidiChannel(MidiChannelComboBox->currentItem()))
                        iErrors++;
                // Engine name...
                if (!m_pChannel->loadEngine(EngineNameComboBox->currentText()))
                        iErrors++;
                // Instrument file and index...
                if (!m_pChannel->loadInstrument(InstrumentFileComboBox->currentText(), InstrumentNrComboBox->currentItem()))
                        iErrors++;
                // Show error messages?
                if (iErrors > 0)
                        m_pChannel->appendMessagesError(tr("Some channel settings could not be set.\n\nSorry."));
        }

        // Save default engine name, instrument directory and history...
        pOptions->sInstrumentDir = QFileInfo(InstrumentFileComboBox->currentText()).dirPath(true);
        pOptions->sEngineName  = EngineNameComboBox->currentText();
        pOptions->sAudioDriver = AudioDriverComboBox->currentText();
        pOptions->sMidiDriver  = MidiDriverComboBox->currentText();
        pOptions->saveComboBoxHistory(InstrumentFileComboBox);

        // Just go with dialog acceptance.
        QDialog::accept();
}


// Reject settings (Cancel button slot).
void qsamplerChannelForm::reject (void)
{
        bool bReject = true;

        // Check if there's any pending changes...
        if (m_iDirtyCount > 0 && OkPushButton->isEnabled()) {
                switch (QMessageBox::warning(this,
                        QSAMPLER_TITLE ": " + tr("Warning"),
                        tr("Some channel settings have been changed.\n\n"
                        "Do you want to apply the changes?"),
                        tr("Apply"), tr("Discard"), tr("Cancel"))) {
                case 0:     // Apply...
                        accept();
                        return;
                case 1:     // Discard
                        break;
                default:    // Cancel.
                        bReject = false;
                }
        }

        if (bReject)
                QDialog::reject();
}


// Browse and open an instrument file.
void qsamplerChannelForm::openInstrumentFile (void)
{
        qsamplerOptions *pOptions = m_pChannel->options();
        if (pOptions == NULL)
                return;

        // FIXME: the instrument file filters should be restricted,
        // depending on the current engine.
        QString sInstrumentFile = QFileDialog::getOpenFileName(
                pOptions->sInstrumentDir,                   // Start here.
                tr("Instrument files") + " (*.gig *.dls)",  // Filter (GIG and DLS files)
                this, 0,                                    // Parent and name (none)
                QSAMPLER_TITLE ": " + tr("Instrument files")    // Caption.
        );

        if (sInstrumentFile.isEmpty())
                return;

        InstrumentFileComboBox->setCurrentText(sInstrumentFile);
        updateInstrumentName();
}


// Refresh the actual instrument name.
void qsamplerChannelForm::updateInstrumentName (void)
{
        qsamplerOptions *pOptions = m_pChannel->options();
        if (pOptions == NULL)
                return;

        // Finally this better idea would be to use libgig
        // to retrieve the REAL instrument names.
        InstrumentNrComboBox->clear();
        InstrumentNrComboBox->insertStringList(
                qsamplerChannel::getInstrumentList(
                        InstrumentFileComboBox->currentText(),
                        pOptions->bInstrumentNames)
        );

        optionsChanged();
}

// Show device options dialog.
void qsamplerChannelForm::setupDevice ( qsamplerDevice *pDevice,
        qsamplerDevice::qsamplerDeviceType deviceTypeMode,
        const QString& sDriverName )
{
        // Create the device form if not already...
        if (m_pDeviceForm == NULL) {
                m_pDeviceForm = new qsamplerDeviceForm(this, 0,
                        WType_Dialog | WShowModal);
                m_pDeviceForm->setMainForm(m_pChannel->mainForm());
                QObject::connect(m_pDeviceForm, SIGNAL(devicesChanged()),
                        this, SLOT(updateDevices()));
        }

        // Refresh the device form with selected data.
        if (m_pDeviceForm) {
                m_pDeviceForm->setDeviceTypeMode(deviceTypeMode);
                m_pDeviceForm->setClient(m_pChannel->client()); // -> refreshDevices();
                m_pDeviceForm->setDevice(pDevice);
                m_pDeviceForm->setDriverName(sDriverName);
                m_pDeviceForm->show();
        }
}


// Refresh MIDI driver item devices.
void qsamplerChannelForm::selectMidiDriverItem ( const QString& sMidiDriver )
{
        const QString sDriverName = sMidiDriver.upper();

        // Save current device id.
        int iDeviceID = 0;
        qsamplerDevice *pDevice = m_midiDevices.at(MidiDeviceComboBox->currentItem());
        if (pDevice)
                iDeviceID = pDevice->deviceID();

        // Clean maplist.
        MidiDeviceComboBox->clear();
        m_midiDevices.clear();

        // Populate with the current ones...
        const QPixmap& midiPixmap = QPixmap::fromMimeSource("midi2.png");
        int *piDeviceIDs = qsamplerDevice::getDevices(m_pChannel->client(),
                qsamplerDevice::Midi);
        for (int i = 0; piDeviceIDs && piDeviceIDs[i] >= 0; i++) {
                pDevice = new qsamplerDevice(m_pChannel->mainForm(),
                        qsamplerDevice::Midi, piDeviceIDs[i]);
                if (pDevice->driverName().upper() == sDriverName) {
                        MidiDeviceComboBox->insertItem(midiPixmap, pDevice->deviceName());
                        m_midiDevices.append(pDevice);
                } else {
                        delete pDevice;
                }
        }

        // Do proper enabling...
        bool bEnabled = !m_midiDevices.isEmpty();
        if (bEnabled) {
                // Select the previous current device...
                int iMidiItem = 0;
                for (pDevice = m_midiDevices.first();
                                pDevice;
                                        pDevice = m_midiDevices.next()) {
                        if (pDevice->deviceID() == iDeviceID) {
                                MidiDeviceComboBox->setCurrentItem(iMidiItem);
                                selectMidiDeviceItem(iMidiItem);
                                break;
                        }
                        iMidiItem++;
                }
        } else {
                MidiDeviceComboBox->insertItem(
                        tr("(New MIDI %1 device)").arg(sMidiDriver));
        }
        MidiDeviceTextLabel->setEnabled(bEnabled);
        MidiDeviceComboBox->setEnabled(bEnabled);
}


// Refresh MIDI device options slot.
void qsamplerChannelForm::selectMidiDriver ( const QString& sMidiDriver )
{
        if (m_iDirtySetup > 0)
                return;

        selectMidiDriverItem(sMidiDriver);
        optionsChanged();
}


// Select MIDI device item.
void qsamplerChannelForm::selectMidiDeviceItem ( int iMidiItem )
{
        qsamplerDevice *pDevice = m_midiDevices.at(iMidiItem);
        if (pDevice) {
                const qsamplerDeviceParamMap& params = pDevice->params();
                int iPorts = params["PORTS"].value.toInt();
                MidiPortTextLabel->setEnabled(iPorts > 0);
                MidiPortSpinBox->setEnabled(iPorts > 0);
                if (iPorts > 0)
                        MidiPortSpinBox->setMaxValue(iPorts - 1);
        }
}


// Select MIDI device options slot.
void qsamplerChannelForm::selectMidiDevice ( int iMidiItem )
{
        if (m_iDirtySetup > 0)
                return;

        selectMidiDeviceItem(iMidiItem);
        optionsChanged();
}


// MIDI device options.
void qsamplerChannelForm::setupMidiDevice (void)
{
        setupDevice(m_midiDevices.at(MidiDeviceComboBox->currentItem()),
                qsamplerDevice::Midi, MidiDriverComboBox->currentText());
}


// Refresh Audio driver item devices.
void qsamplerChannelForm::selectAudioDriverItem ( const QString& sAudioDriver )
{
        const QString sDriverName = sAudioDriver.upper();

        // Save current device id.
        int iDeviceID = 0;
        qsamplerDevice *pDevice = m_audioDevices.at(AudioDeviceComboBox->currentItem());
        if (pDevice)
                iDeviceID = pDevice->deviceID();

        // Clean maplist.
        AudioDeviceComboBox->clear();
        m_audioDevices.clear();

        // Populate with the current ones...
        const QPixmap& audioPixmap = QPixmap::fromMimeSource("audio2.png");
        int *piDeviceIDs = qsamplerDevice::getDevices(m_pChannel->client(),
                qsamplerDevice::Audio);
        for (int i = 0; piDeviceIDs && piDeviceIDs[i] >= 0; i++) {
                pDevice = new qsamplerDevice(m_pChannel->mainForm(),
                        qsamplerDevice::Audio, piDeviceIDs[i]);
                if (pDevice->driverName().upper() == sDriverName) {
                        AudioDeviceComboBox->insertItem(audioPixmap, pDevice->deviceName());
                        m_audioDevices.append(pDevice);
                } else {
                        delete pDevice;
                }
        }

        // Do proper enabling...
        bool bEnabled = !m_audioDevices.isEmpty();
        if (bEnabled) {
                // Select the previous current device...
                int iAudioItem = 0;
                for (pDevice = m_audioDevices.first();
                                pDevice;
                                        pDevice = m_audioDevices.next()) {
                        if (pDevice->deviceID() == iDeviceID) {
                                AudioDeviceComboBox->setCurrentItem(iAudioItem);
                                selectAudioDeviceItem(iAudioItem);
                                break;
                        }
                        iAudioItem++;
                }
        } else {
                AudioDeviceComboBox->insertItem(
                        tr("(New Audio %1 device)").arg(sAudioDriver));
                AudioRoutingTable->setNumRows(0);
        }
        AudioDeviceTextLabel->setEnabled(bEnabled);
        AudioDeviceComboBox->setEnabled(bEnabled);
        AudioRoutingTable->setEnabled(bEnabled);
}


// Refresh Audio device options slot.
void qsamplerChannelForm::selectAudioDriver ( const QString& sAudioDriver )
{
        if (m_iDirtySetup > 0)
                return;

        selectAudioDriverItem(sAudioDriver);
        optionsChanged();
}


// Select Audio device item.
void qsamplerChannelForm::selectAudioDeviceItem ( int iAudioItem )
{
        qsamplerDevice *pDevice = m_audioDevices.at(iAudioItem);
        if (pDevice) {
                // Refresh the audio routing table.
                AudioRoutingTable->refresh(pDevice, m_pChannel->audioRouting());
                // Reset routing change map.
                m_audioRouting.clear();
        }
}


// Select Audio device options slot.
void qsamplerChannelForm::selectAudioDevice ( int iAudioItem )
{
        if (m_iDirtySetup > 0)
                return;

        selectAudioDeviceItem(iAudioItem);
        optionsChanged();
}


// Audio device options.
void qsamplerChannelForm::setupAudioDevice (void)
{
        setupDevice(m_audioDevices.at(AudioDeviceComboBox->currentItem()),
                qsamplerDevice::Audio, AudioDriverComboBox->currentText());
}


// Audio routing change slot.
void qsamplerChannelForm::changeAudioRouting ( int iRow, int iCol )
{
        if (m_iDirtySetup > 0)
                return;
        if (iRow < 0 || iCol < 0)
                return;

        // Verify that this is a QComboTableItem (magic rtti == 1)
        QTableItem *pItem = AudioRoutingTable->item(iRow, iCol);
        if (pItem == NULL)
                return;
        qsamplerChannelRoutingComboBox *pComboItem =
                static_cast<qsamplerChannelRoutingComboBox*> (pItem);
        // FIXME: Its not garanteed that we must have
        // iAudioOut == iRow on all times forth!
        m_audioRouting[iRow] = pComboItem->currentItem();

        // And let's get dirty...
        optionsChanged();
}


// UPdate all device lists slot.
void qsamplerChannelForm::updateDevices (void)
{
        if (m_iDirtySetup > 0)
                return;

        selectMidiDriverItem(MidiDriverComboBox->currentText());
        selectAudioDriverItem(AudioDriverComboBox->currentText());
        optionsChanged();
}


// Dirty up settings.
void qsamplerChannelForm::optionsChanged (void)
{
        if (m_iDirtySetup > 0)
                return;

        m_iDirtyCount++;
        stabilizeForm();
}


// Stabilize current form state.
void qsamplerChannelForm::stabilizeForm (void)
{
        const QString& sFilename = InstrumentFileComboBox->currentText();
        OkPushButton->setEnabled(m_iDirtyCount > 0 && !sFilename.isEmpty() && QFileInfo(sFilename).exists());
}


// end of qsamplerChannelForm.ui.h
1	// qsamplerChannelForm.ui.h
2	//
3	// ui.h extension file, included from the uic-generated form implementation.
4	/****************************************************************************
5	Copyright (C) 2004-2005, rncbc aka Rui Nuno Capela. All rights reserved.
6
7	This program is free software; you can redistribute it and/or
8	modify it under the terms of the GNU General Public License
9	as published by the Free Software Foundation; either version 2
10	of the License, or (at your option) any later version.
11
12	This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.
16
17	You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software
19	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20
21	*****************************************************************************/
22
23	#include "qsamplerAbout.h"
24	#include "qsamplerDeviceForm.h"
25
26	#include <qvalidator.h>
27	#include <qmessagebox.h>
28	#include <qfiledialog.h>
29	#include <qfileinfo.h>
30	#include <qlistbox.h>
31
32
33	// Kind of constructor.
34	void qsamplerChannelForm::init (void)
35	{
36	// Initialize locals.
37	m_pChannel = NULL;
38
39	m_iDirtySetup = 0;
40	m_iDirtyCount = 0;
41
42	m_midiDevices.setAutoDelete(true);
43	m_audioDevices.setAutoDelete(true);
44
45	m_pDeviceForm = NULL;
46
47	// Try to restore normal window positioning.
48	adjustSize();
49	}
50
51
52	// Kind of destructor.
53	void qsamplerChannelForm::destroy (void)
54	{
55	if (m_pDeviceForm)
56	delete m_pDeviceForm;
57	m_pDeviceForm = NULL;
58	}
59
60
61	// Channel dialog setup formal initializer.
62	void qsamplerChannelForm::setup ( qsamplerChannel *pChannel )
63	{
64	m_pChannel = pChannel;
65
66	m_iDirtySetup = 0;
67	m_iDirtyCount = 0;
68
69	if (m_pChannel == NULL)
70	return;
71
72	// It can be a brand new channel, remember?
73	bool bNew = (m_pChannel->channelID() < 0);
74	setCaption(QSAMPLER_TITLE ": " + m_pChannel->channelName());
75
76	// Check if we're up and connected.
77	if (m_pChannel->client() == NULL)
78	return;
79
80	qsamplerOptions *pOptions = m_pChannel->options();
81	if (pOptions == NULL)
82	return;
83
84	// Avoid nested changes.
85	m_iDirtySetup++;
86
87	// Load combo box history...
88	pOptions->loadComboBoxHistory(InstrumentFileComboBox);
89
90	// Notify.that we've just changed one audio route.
91	QObject::connect(AudioRoutingTable, SIGNAL(valueChanged(int,int)),
92	this, SLOT(changeAudioRouting(int,int)));
93
94	// Populate Engines list.
95	const char **ppszEngines = ::lscp_list_available_engines(m_pChannel->client());
96	if (ppszEngines) {
97	EngineNameComboBox->clear();
98	for (int iEngine = 0; ppszEngines[iEngine]; iEngine++)
99	EngineNameComboBox->insertItem(ppszEngines[iEngine]);
100	}
101	else m_pChannel->appendMessagesClient("lscp_list_available_engines");
102
103	// Populate Audio output type list.
104	AudioDriverComboBox->clear();
105	AudioDriverComboBox->insertStringList(
106	qsamplerDevice::getDrivers(m_pChannel->client(), qsamplerDevice::Audio));
107
108	// Populate MIDI input type list.
109	MidiDriverComboBox->clear();
110	MidiDriverComboBox->insertStringList(
111	qsamplerDevice::getDrivers(m_pChannel->client(), qsamplerDevice::Midi));
112
113	// Read proper channel information,
114	// and populate the channel form fields.
115
116	// Engine name...
117	QString sEngineName = pChannel->engineName();
118	if (sEngineName.isEmpty() \|\| bNew)
119	sEngineName = pOptions->sEngineName;
120	if (sEngineName.isEmpty())
121	sEngineName = qsamplerChannel::noEngineName();
122	if (EngineNameComboBox->listBox()->findItem(sEngineName,
123	Qt::ExactMatch \| Qt::CaseSensitive) == NULL) {
124	EngineNameComboBox->insertItem(sEngineName);
125	}
126	EngineNameComboBox->setCurrentText(sEngineName);
127	// Instrument filename and index...
128	QString sInstrumentFile = pChannel->instrumentFile();
129	if (sInstrumentFile.isEmpty())
130	sInstrumentFile = qsamplerChannel::noInstrumentName();
131	InstrumentFileComboBox->setCurrentText(sInstrumentFile);
132	InstrumentNrComboBox->clear();
133	InstrumentNrComboBox->insertStringList(
134	qsamplerChannel::getInstrumentList(sInstrumentFile,
135	pOptions->bInstrumentNames));
136	InstrumentNrComboBox->setCurrentItem(pChannel->instrumentNr());
137
138	// MIDI input device...
139	qsamplerDevice midiDevice(m_pChannel->mainForm(),
140	qsamplerDevice::Midi, m_pChannel->midiDevice());
141	// MIDI input driver...
142	QString sMidiDriver = midiDevice.driverName();
143	if (sMidiDriver.isEmpty() \|\| bNew)
144	sMidiDriver = pOptions->sMidiDriver.upper();
145	if (!sMidiDriver.isEmpty()) {
146	if (MidiDriverComboBox->listBox()->findItem(sMidiDriver,
147	Qt::ExactMatch \| Qt::CaseSensitive) == NULL) {
148	MidiDriverComboBox->insertItem(sMidiDriver);
149	}
150	MidiDriverComboBox->setCurrentText(sMidiDriver);
151	}
152	selectMidiDriverItem(sMidiDriver);
153	if (!bNew)
154	MidiDeviceComboBox->setCurrentText(midiDevice.deviceName());
155	selectMidiDeviceItem(MidiDeviceComboBox->currentItem());
156	// MIDI input port...
157	MidiPortSpinBox->setValue(pChannel->midiPort());
158	// MIDI input channel...
159	int iMidiChannel = pChannel->midiChannel();
160	// When new, try to suggest a sensible MIDI channel...
161	if (iMidiChannel < 0)
162	iMidiChannel = (::lscp_get_channels(m_pChannel->client()) % 16);
163	MidiChannelComboBox->setCurrentItem(iMidiChannel);
164
165	// Audio output device...
166	qsamplerDevice audioDevice(m_pChannel->mainForm(),
167	qsamplerDevice::Audio, m_pChannel->audioDevice());
168	// Audio output driver...
169	QString sAudioDriver = audioDevice.driverName();
170	if (sAudioDriver.isEmpty() \|\| bNew)
171	sAudioDriver = pOptions->sAudioDriver.upper();
172	if (!sAudioDriver.isEmpty()) {
173	if (AudioDriverComboBox->listBox()->findItem(sAudioDriver,
174	Qt::ExactMatch \| Qt::CaseSensitive) == NULL) {
175	AudioDriverComboBox->insertItem(sAudioDriver);
176	}
177	AudioDriverComboBox->setCurrentText(sAudioDriver);
178	}
179	selectAudioDriverItem(sAudioDriver);
180	if (!bNew)
181	AudioDeviceComboBox->setCurrentText(audioDevice.deviceName());
182	selectAudioDeviceItem(AudioDeviceComboBox->currentItem());
183
184	// As convenient, make it ready on stabilizeForm() for
185	// prompt acceptance, if we got the minimum required...
186	/* if (sEngineName != qsamplerChannel::noEngineName() &&
187	sInstrumentFile != qsamplerChannel::noInstrumentName())
188	m_iDirtyCount++; */
189	// Done.
190	m_iDirtySetup--;
191	stabilizeForm();
192	}
193
194
195	// Accept settings (OK button slot).
196	void qsamplerChannelForm::accept (void)
197	{
198	if (m_pChannel == NULL)
199	return;
200
201	qsamplerOptions *pOptions = m_pChannel->options();
202	if (pOptions == NULL)
203	return;
204
205	// We'll go for it!
206	if (m_iDirtyCount > 0) {
207	int iErrors = 0;
208	// Are we a new channel?
209	if (!m_pChannel->addChannel())
210	iErrors++;
211	// Accept Audio driver or device selection...
212	if (m_audioDevices.isEmpty()) {
213	if (!m_pChannel->setAudioDriver(AudioDriverComboBox->currentText()))
214	iErrors++;
215	} else {
216	qsamplerDevice *pDevice = m_audioDevices.at(AudioDeviceComboBox->currentItem());
217	if (pDevice == NULL)
218	iErrors++;
219	else if (!m_pChannel->setAudioDevice(pDevice->deviceID()))
220	iErrors++;
221	else if (!m_audioRouting.isEmpty()) {
222	// Set the audio route changes...
223	qsamplerChannelRoutingMap::ConstIterator iter;
224	for (iter = m_audioRouting.begin();
225	iter != m_audioRouting.end(); ++iter) {
226	if (!m_pChannel->setAudioChannel(iter.key(), iter.data()))
227	iErrors++;
228	}
229	}
230	}
231	// Accept MIDI driver or device selection...
232	if (m_midiDevices.isEmpty()) {
233	if (!m_pChannel->setMidiDriver(MidiDriverComboBox->currentText()))
234	iErrors++;
235	} else {
236	qsamplerDevice *pDevice = m_midiDevices.at(MidiDeviceComboBox->currentItem());
237	if (pDevice == NULL)
238	iErrors++;
239	else if (!m_pChannel->setMidiDevice(pDevice->deviceID()))
240	iErrors++;
241	}
242	// MIDI input port number...
243	if (!m_pChannel->setMidiPort(MidiPortSpinBox->value()))
244	iErrors++;
245	// MIDI input channel...
246	if (!m_pChannel->setMidiChannel(MidiChannelComboBox->currentItem()))
247	iErrors++;
248	// Engine name...
249	if (!m_pChannel->loadEngine(EngineNameComboBox->currentText()))
250	iErrors++;
251	// Instrument file and index...
252	if (!m_pChannel->loadInstrument(InstrumentFileComboBox->currentText(), InstrumentNrComboBox->currentItem()))
253	iErrors++;
254	// Show error messages?
255	if (iErrors > 0)
256	m_pChannel->appendMessagesError(tr("Some channel settings could not be set.\n\nSorry."));
257	}
258
259	// Save default engine name, instrument directory and history...
260	pOptions->sInstrumentDir = QFileInfo(InstrumentFileComboBox->currentText()).dirPath(true);
261	pOptions->sEngineName = EngineNameComboBox->currentText();
262	pOptions->sAudioDriver = AudioDriverComboBox->currentText();
263	pOptions->sMidiDriver = MidiDriverComboBox->currentText();
264	pOptions->saveComboBoxHistory(InstrumentFileComboBox);
265
266	// Just go with dialog acceptance.
267	QDialog::accept();
268	}
269
270
271	// Reject settings (Cancel button slot).
272	void qsamplerChannelForm::reject (void)
273	{
274	bool bReject = true;
275
276	// Check if there's any pending changes...
277	if (m_iDirtyCount > 0 && OkPushButton->isEnabled()) {
278	switch (QMessageBox::warning(this,
279	QSAMPLER_TITLE ": " + tr("Warning"),
280	tr("Some channel settings have been changed.\n\n"
281	"Do you want to apply the changes?"),
282	tr("Apply"), tr("Discard"), tr("Cancel"))) {
283	case 0: // Apply...
284	accept();
285	return;
286	case 1: // Discard
287	break;
288	default: // Cancel.
289	bReject = false;
290	}
291	}
292
293	if (bReject)
294	QDialog::reject();
295	}
296
297
298	// Browse and open an instrument file.
299	void qsamplerChannelForm::openInstrumentFile (void)
300	{
301	qsamplerOptions *pOptions = m_pChannel->options();
302	if (pOptions == NULL)
303	return;
304
305	// FIXME: the instrument file filters should be restricted,
306	// depending on the current engine.
307	QString sInstrumentFile = QFileDialog::getOpenFileName(
308	pOptions->sInstrumentDir, // Start here.
309	tr("Instrument files") + " (.gig .dls)", // Filter (GIG and DLS files)
310	this, 0, // Parent and name (none)
311	QSAMPLER_TITLE ": " + tr("Instrument files") // Caption.
312	);
313
314	if (sInstrumentFile.isEmpty())
315	return;
316
317	InstrumentFileComboBox->setCurrentText(sInstrumentFile);
318	updateInstrumentName();
319	}
320
321
322	// Refresh the actual instrument name.
323	void qsamplerChannelForm::updateInstrumentName (void)
324	{
325	qsamplerOptions *pOptions = m_pChannel->options();
326	if (pOptions == NULL)
327	return;
328
329	// Finally this better idea would be to use libgig
330	// to retrieve the REAL instrument names.
331	InstrumentNrComboBox->clear();
332	InstrumentNrComboBox->insertStringList(
333	qsamplerChannel::getInstrumentList(
334	InstrumentFileComboBox->currentText(),
335	pOptions->bInstrumentNames)
336	);
337
338	optionsChanged();
339	}
340
341	// Show device options dialog.
342	void qsamplerChannelForm::setupDevice ( qsamplerDevice *pDevice,
343	qsamplerDevice::qsamplerDeviceType deviceTypeMode,
344	const QString& sDriverName )
345	{
346	// Create the device form if not already...
347	if (m_pDeviceForm == NULL) {
348	m_pDeviceForm = new qsamplerDeviceForm(this, 0,
349	WType_Dialog \| WShowModal);
350	m_pDeviceForm->setMainForm(m_pChannel->mainForm());
351	QObject::connect(m_pDeviceForm, SIGNAL(devicesChanged()),
352	this, SLOT(updateDevices()));
353	}
354
355	// Refresh the device form with selected data.
356	if (m_pDeviceForm) {
357	m_pDeviceForm->setDeviceTypeMode(deviceTypeMode);
358	m_pDeviceForm->setClient(m_pChannel->client()); // -> refreshDevices();
359	m_pDeviceForm->setDevice(pDevice);
360	m_pDeviceForm->setDriverName(sDriverName);
361	m_pDeviceForm->show();
362	}
363	}
364
365
366	// Refresh MIDI driver item devices.
367	void qsamplerChannelForm::selectMidiDriverItem ( const QString& sMidiDriver )
368	{
369	const QString sDriverName = sMidiDriver.upper();
370
371	// Save current device id.
372	int iDeviceID = 0;
373	qsamplerDevice *pDevice = m_midiDevices.at(MidiDeviceComboBox->currentItem());
374	if (pDevice)
375	iDeviceID = pDevice->deviceID();
376
377	// Clean maplist.
378	MidiDeviceComboBox->clear();
379	m_midiDevices.clear();
380
381	// Populate with the current ones...
382	const QPixmap& midiPixmap = QPixmap::fromMimeSource("midi2.png");
383	int *piDeviceIDs = qsamplerDevice::getDevices(m_pChannel->client(),
384	qsamplerDevice::Midi);
385	for (int i = 0; piDeviceIDs && piDeviceIDs[i] >= 0; i++) {
386	pDevice = new qsamplerDevice(m_pChannel->mainForm(),
387	qsamplerDevice::Midi, piDeviceIDs[i]);
388	if (pDevice->driverName().upper() == sDriverName) {
389	MidiDeviceComboBox->insertItem(midiPixmap, pDevice->deviceName());
390	m_midiDevices.append(pDevice);
391	} else {
392	delete pDevice;
393	}
394	}
395
396	// Do proper enabling...
397	bool bEnabled = !m_midiDevices.isEmpty();
398	if (bEnabled) {
399	// Select the previous current device...
400	int iMidiItem = 0;
401	for (pDevice = m_midiDevices.first();
402	pDevice;
403	pDevice = m_midiDevices.next()) {
404	if (pDevice->deviceID() == iDeviceID) {
405	MidiDeviceComboBox->setCurrentItem(iMidiItem);
406	selectMidiDeviceItem(iMidiItem);
407	break;
408	}
409	iMidiItem++;
410	}
411	} else {
412	MidiDeviceComboBox->insertItem(
413	tr("(New MIDI %1 device)").arg(sMidiDriver));
414	}
415	MidiDeviceTextLabel->setEnabled(bEnabled);
416	MidiDeviceComboBox->setEnabled(bEnabled);
417	}
418
419
420	// Refresh MIDI device options slot.
421	void qsamplerChannelForm::selectMidiDriver ( const QString& sMidiDriver )
422	{
423	if (m_iDirtySetup > 0)
424	return;
425
426	selectMidiDriverItem(sMidiDriver);
427	optionsChanged();
428	}
429
430
431	// Select MIDI device item.
432	void qsamplerChannelForm::selectMidiDeviceItem ( int iMidiItem )
433	{
434	qsamplerDevice *pDevice = m_midiDevices.at(iMidiItem);
435	if (pDevice) {
436	const qsamplerDeviceParamMap& params = pDevice->params();
437	int iPorts = params["PORTS"].value.toInt();
438	MidiPortTextLabel->setEnabled(iPorts > 0);
439	MidiPortSpinBox->setEnabled(iPorts > 0);
440	if (iPorts > 0)
441	MidiPortSpinBox->setMaxValue(iPorts - 1);
442	}
443	}
444
445
446	// Select MIDI device options slot.
447	void qsamplerChannelForm::selectMidiDevice ( int iMidiItem )
448	{
449	if (m_iDirtySetup > 0)
450	return;
451
452	selectMidiDeviceItem(iMidiItem);
453	optionsChanged();
454	}
455
456
457	// MIDI device options.
458	void qsamplerChannelForm::setupMidiDevice (void)
459	{
460	setupDevice(m_midiDevices.at(MidiDeviceComboBox->currentItem()),
461	qsamplerDevice::Midi, MidiDriverComboBox->currentText());
462	}
463
464
465	// Refresh Audio driver item devices.
466	void qsamplerChannelForm::selectAudioDriverItem ( const QString& sAudioDriver )
467	{
468	const QString sDriverName = sAudioDriver.upper();
469
470	// Save current device id.
471	int iDeviceID = 0;
472	qsamplerDevice *pDevice = m_audioDevices.at(AudioDeviceComboBox->currentItem());
473	if (pDevice)
474	iDeviceID = pDevice->deviceID();
475
476	// Clean maplist.
477	AudioDeviceComboBox->clear();
478	m_audioDevices.clear();
479
480	// Populate with the current ones...
481	const QPixmap& audioPixmap = QPixmap::fromMimeSource("audio2.png");
482	int *piDeviceIDs = qsamplerDevice::getDevices(m_pChannel->client(),
483	qsamplerDevice::Audio);
484	for (int i = 0; piDeviceIDs && piDeviceIDs[i] >= 0; i++) {
485	pDevice = new qsamplerDevice(m_pChannel->mainForm(),
486	qsamplerDevice::Audio, piDeviceIDs[i]);
487	if (pDevice->driverName().upper() == sDriverName) {
488	AudioDeviceComboBox->insertItem(audioPixmap, pDevice->deviceName());
489	m_audioDevices.append(pDevice);
490	} else {
491	delete pDevice;
492	}
493	}
494
495	// Do proper enabling...
496	bool bEnabled = !m_audioDevices.isEmpty();
497	if (bEnabled) {
498	// Select the previous current device...
499	int iAudioItem = 0;
500	for (pDevice = m_audioDevices.first();
501	pDevice;
502	pDevice = m_audioDevices.next()) {
503	if (pDevice->deviceID() == iDeviceID) {
504	AudioDeviceComboBox->setCurrentItem(iAudioItem);
505	selectAudioDeviceItem(iAudioItem);
506	break;
507	}
508	iAudioItem++;
509	}
510	} else {
511	AudioDeviceComboBox->insertItem(
512	tr("(New Audio %1 device)").arg(sAudioDriver));
513	AudioRoutingTable->setNumRows(0);
514	}
515	AudioDeviceTextLabel->setEnabled(bEnabled);
516	AudioDeviceComboBox->setEnabled(bEnabled);
517	AudioRoutingTable->setEnabled(bEnabled);
518	}
519
520
521	// Refresh Audio device options slot.
522	void qsamplerChannelForm::selectAudioDriver ( const QString& sAudioDriver )
523	{
524	if (m_iDirtySetup > 0)
525	return;
526
527	selectAudioDriverItem(sAudioDriver);
528	optionsChanged();
529	}
530
531
532	// Select Audio device item.
533	void qsamplerChannelForm::selectAudioDeviceItem ( int iAudioItem )
534	{
535	qsamplerDevice *pDevice = m_audioDevices.at(iAudioItem);
536	if (pDevice) {
537	// Refresh the audio routing table.
538	AudioRoutingTable->refresh(pDevice, m_pChannel->audioRouting());
539	// Reset routing change map.
540	m_audioRouting.clear();
541	}
542	}
543
544
545	// Select Audio device options slot.
546	void qsamplerChannelForm::selectAudioDevice ( int iAudioItem )
547	{
548	if (m_iDirtySetup > 0)
549	return;
550
551	selectAudioDeviceItem(iAudioItem);
552	optionsChanged();
553	}
554
555
556	// Audio device options.
557	void qsamplerChannelForm::setupAudioDevice (void)
558	{
559	setupDevice(m_audioDevices.at(AudioDeviceComboBox->currentItem()),
560	qsamplerDevice::Audio, AudioDriverComboBox->currentText());
561	}
562
563
564	// Audio routing change slot.
565	void qsamplerChannelForm::changeAudioRouting ( int iRow, int iCol )
566	{
567	if (m_iDirtySetup > 0)
568	return;
569	if (iRow < 0 \|\| iCol < 0)
570	return;
571
572	// Verify that this is a QComboTableItem (magic rtti == 1)
573	QTableItem *pItem = AudioRoutingTable->item(iRow, iCol);
574	if (pItem == NULL)
575	return;
576	qsamplerChannelRoutingComboBox *pComboItem =
577	static_cast<qsamplerChannelRoutingComboBox*> (pItem);
578	// FIXME: Its not garanteed that we must have
579	// iAudioOut == iRow on all times forth!
580	m_audioRouting[iRow] = pComboItem->currentItem();
581
582	// And let's get dirty...
583	optionsChanged();
584	}
585
586
587	// UPdate all device lists slot.
588	void qsamplerChannelForm::updateDevices (void)
589	{
590	if (m_iDirtySetup > 0)
591	return;
592
593	selectMidiDriverItem(MidiDriverComboBox->currentText());
594	selectAudioDriverItem(AudioDriverComboBox->currentText());
595	optionsChanged();
596	}
597
598
599	// Dirty up settings.
600	void qsamplerChannelForm::optionsChanged (void)
601	{
602	if (m_iDirtySetup > 0)
603	return;
604
605	m_iDirtyCount++;
606	stabilizeForm();
607	}
608
609
610	// Stabilize current form state.
611	void qsamplerChannelForm::stabilizeForm (void)
612	{
613	const QString& sFilename = InstrumentFileComboBox->currentText();
614	OkPushButton->setEnabled(m_iDirtyCount > 0 && !sFilename.isEmpty() && QFileInfo(sFilename).exists());
615	}
616
617
618	// end of qsamplerChannelForm.ui.h