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

#include "qsamplerDeviceForm.h"

#include "config.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(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);

        // 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++;
                }
                // 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, 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)
                        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 = -1;
        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) {
                MidiDeviceComboBox->insertItem(
                        tr("(New MIDI %1 device)").arg(sMidiDriver));
        } else if (iDeviceID >= 0) {
                // 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++;
                }
        }
        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 = -1;
        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) {
                AudioDeviceComboBox->insertItem(
                        tr("(New Audio %1 device)").arg(sAudioDriver));
        } else if (iDeviceID >= 0) {
                // 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++;
                }
        }
        AudioDeviceTextLabel->setEnabled(bEnabled);
        AudioDeviceComboBox->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) {
                // Is there anything to do here?
        }
}


// 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());
}


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