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_get_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_get_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) == 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;
        if (!sMidiDriver.isEmpty()) {
                if (MidiDriverComboBox->listBox()->findItem(sMidiDriver, Qt::ExactMatch) == NULL)
                        MidiDriverComboBox->insertItem(sMidiDriver);
                MidiDriverComboBox->setCurrentText(sMidiDriver);
        }
        selectMidiDriver(sMidiDriver);
        if (!bNew)
                MidiDeviceComboBox->setCurrentText(midiDevice.deviceName());
        selectMidiDevice(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;
        if (!sAudioDriver.isEmpty()) {
                if (AudioDriverComboBox->listBox()->findItem(sAudioDriver, Qt::ExactMatch) == NULL)
                        AudioDriverComboBox->insertItem(sAudioDriver);
                AudioDriverComboBox->setCurrentText(sAudioDriver);
        }
        selectAudioDriver(sAudioDriver);
        if (!bNew)
                AudioDeviceComboBox->setCurrentText(audioDevice.deviceName());
        selectAudioDevice(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);
}


// 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 )
{
        if (pDevice == NULL)
            return;

        // 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());
                m_pDeviceForm->move(QDialog::pos() + QPoint(32, 32));
        }

        // Refresh the device form with selected data.
        if (m_pDeviceForm) {
                m_pDeviceForm->setClient(m_pChannel->client()); // <-- refreshDevices().
                m_pDeviceForm->setDevice(pDevice->deviceType(),
                        pDevice->deviceID());
                m_pDeviceForm->show();
        }
}


// Refresh MIDI device options.
void qsamplerChannelForm::selectMidiDriver ( const QString& sMidiDriver )
{
        const QString sDriverName = sMidiDriver.upper();
        
        MidiDeviceComboBox->clear();
        m_audioDevices.clear();

        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++) {
                qsamplerDevice *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;
                }
        }

        bool bEnabled = !m_midiDevices.isEmpty();
        if (!bEnabled)
                MidiDeviceComboBox->insertItem(tr("(New MIDI device)"));
        MidiDeviceTextLabel->setEnabled(bEnabled);
        MidiDeviceComboBox->setEnabled(bEnabled);
        MidiDevicePushButton->setEnabled(bEnabled);
        optionsChanged();
}


// Select MIDI device options.
void qsamplerChannelForm::selectMidiDevice ( 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);
        }
        optionsChanged();
}


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


// Refresh Audio device options.
void qsamplerChannelForm::selectAudioDriver ( const QString& sAudioDriver )
{
        const QString sDriverName = sAudioDriver.upper();

        AudioDeviceComboBox->clear();
        m_audioDevices.clear();

        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++) {
                qsamplerDevice *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;
                }
        }

        bool bEnabled = !m_audioDevices.isEmpty();
        if (!bEnabled)
                AudioDeviceComboBox->insertItem(tr("(New Audio device)"));
        AudioDeviceTextLabel->setEnabled(bEnabled);
        AudioDeviceComboBox->setEnabled(bEnabled);
        AudioDevicePushButton->setEnabled(bEnabled);
        optionsChanged();
}


// Select Audio device options.
void qsamplerChannelForm::selectAudioDevice ( int iAudioItem )
{
        qsamplerDevice *pDevice = m_audioDevices.at(iAudioItem);
        if (pDevice) {
                // Is there anything to do here?
        }
        optionsChanged();
}


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


// 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	capela	104	// qsamplerChannelForm.ui.h
2			//
3			// ui.h extension file, included from the uic-generated form implementation.
4			/****************************************************************************
5	capela	341	Copyright (C) 2004-2005, rncbc aka Rui Nuno Capela. All rights reserved.
6	capela	104
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	capela	487	#include "qsamplerDeviceForm.h"
30
31	capela	104	#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	capela	452	m_midiDevices.setAutoDelete(true);
44			m_audioDevices.setAutoDelete(true);
45
46	capela	487	m_pDeviceForm = NULL;
47
48	capela	104	// Try to restore normal window positioning.
49			adjustSize();
50			}
51
52
53			// Kind of destructor.
54			void qsamplerChannelForm::destroy (void)
55			{
56	capela	487	if (m_pDeviceForm)
57			delete m_pDeviceForm;
58			m_pDeviceForm = NULL;
59	capela	104	}
60
61
62			// Channel dialog setup formal initializer.
63	capela	295	void qsamplerChannelForm::setup ( qsamplerChannel *pChannel )
64	capela	104	{
65			m_pChannel = pChannel;
66
67			m_iDirtySetup = 0;
68			m_iDirtyCount = 0;
69
70			if (m_pChannel == NULL)
71			return;
72
73	capela	295	// It can be a brand new channel, remember?
74			bool bNew = (m_pChannel->channelID() < 0);
75			setCaption(m_pChannel->channelName());
76	capela	104
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_get_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_get_available_engines");
99	capela	145
100	capela	104	// Populate Audio output type list.
101	capela	430	AudioDriverComboBox->clear();
102			AudioDriverComboBox->insertStringList(
103			qsamplerDevice::getDrivers(m_pChannel->client(), qsamplerDevice::Audio));
104	capela	104
105			// Populate MIDI input type list.
106	capela	430	MidiDriverComboBox->clear();
107			MidiDriverComboBox->insertStringList(
108			qsamplerDevice::getDrivers(m_pChannel->client(), qsamplerDevice::Midi));
109	capela	145
110	capela	104	// Read proper channel information,
111			// and populate the channel form fields.
112
113			// Engine name...
114	capela	145	QString sEngineName = pChannel->engineName();
115	capela	400	if (sEngineName.isEmpty() \|\| bNew)
116	capela	176	sEngineName = pOptions->sEngineName;
117	capela	145	if (sEngineName.isEmpty())
118	capela	388	sEngineName = qsamplerChannel::noEngineName();
119	capela	145	if (EngineNameComboBox->listBox()->findItem(sEngineName, Qt::ExactMatch) == NULL)
120			EngineNameComboBox->insertItem(sEngineName);
121			EngineNameComboBox->setCurrentText(sEngineName);
122	capela	104	// Instrument filename and index...
123	capela	145	QString sInstrumentFile = pChannel->instrumentFile();
124			if (sInstrumentFile.isEmpty())
125	capela	388	sInstrumentFile = qsamplerChannel::noInstrumentName();
126	capela	145	InstrumentFileComboBox->setCurrentText(sInstrumentFile);
127	capela	299	InstrumentNrComboBox->clear();
128	capela	344	InstrumentNrComboBox->insertStringList(
129			qsamplerChannel::getInstrumentList(sInstrumentFile,
130			pOptions->bInstrumentNames));
131	capela	299	InstrumentNrComboBox->setCurrentItem(pChannel->instrumentNr());
132	capela	452
133			// MIDI input device...
134	capela	484	qsamplerDevice midiDevice(m_pChannel->mainForm(),
135	capela	452	qsamplerDevice::Midi, m_pChannel->midiDevice());
136	capela	176	// MIDI input driver...
137	capela	452	QString sMidiDriver = midiDevice.driverName();
138			if (sMidiDriver.isEmpty() \|\| bNew)
139			sMidiDriver = pOptions->sMidiDriver;
140			if (!sMidiDriver.isEmpty()) {
141			if (MidiDriverComboBox->listBox()->findItem(sMidiDriver, Qt::ExactMatch) == NULL)
142			MidiDriverComboBox->insertItem(sMidiDriver);
143			MidiDriverComboBox->setCurrentText(sMidiDriver);
144			}
145			selectMidiDriver(sMidiDriver);
146			if (!bNew)
147			MidiDeviceComboBox->setCurrentText(midiDevice.deviceName());
148	capela	455	selectMidiDevice(MidiDeviceComboBox->currentItem());
149	capela	176	// MIDI input port...
150	capela	104	MidiPortSpinBox->setValue(pChannel->midiPort());
151	capela	176	// MIDI input channel...
152			int iMidiChannel = pChannel->midiChannel();
153	capela	295	// When new, try to suggest a sensible MIDI channel...
154			if (iMidiChannel < 0)
155			iMidiChannel = (::lscp_get_channels(m_pChannel->client()) % 16);
156	capela	255	MidiChannelComboBox->setCurrentItem(iMidiChannel);
157	capela	455
158	capela	452	// Audio output device...
159	capela	484	qsamplerDevice audioDevice(m_pChannel->mainForm(),
160	capela	452	qsamplerDevice::Audio, m_pChannel->audioDevice());
161			// Audio output driver...
162			QString sAudioDriver = audioDevice.driverName();
163			if (sAudioDriver.isEmpty() \|\| bNew)
164			sAudioDriver = pOptions->sAudioDriver;
165			if (!sAudioDriver.isEmpty()) {
166			if (AudioDriverComboBox->listBox()->findItem(sAudioDriver, Qt::ExactMatch) == NULL)
167			AudioDriverComboBox->insertItem(sAudioDriver);
168			AudioDriverComboBox->setCurrentText(sAudioDriver);
169			}
170			selectAudioDriver(sAudioDriver);
171			if (!bNew)
172			AudioDeviceComboBox->setCurrentText(audioDevice.deviceName());
173	capela	455	selectAudioDevice(AudioDeviceComboBox->currentItem());
174	capela	452
175	capela	391	// As convenient, make it ready on stabilizeForm() for
176			// prompt acceptance, if we got the minimum required...
177	capela	395	if (sEngineName != qsamplerChannel::noEngineName() &&
178			sInstrumentFile != qsamplerChannel::noInstrumentName())
179			m_iDirtyCount++;
180	capela	104	// Done.
181			m_iDirtySetup--;
182			stabilizeForm();
183			}
184
185
186			// Accept settings (OK button slot).
187			void qsamplerChannelForm::accept (void)
188			{
189			if (m_pChannel == NULL)
190			return;
191
192			qsamplerOptions *pOptions = m_pChannel->options();
193			if (pOptions == NULL)
194			return;
195
196			// We'll go for it!
197			if (m_iDirtyCount > 0) {
198			int iErrors = 0;
199	capela	295	// Are we a new channel?
200			if (!m_pChannel->addChannel())
201			iErrors++;
202	capela	452	// Accept Audio driver or device selection...
203			if (m_audioDevices.isEmpty()) {
204			if (!m_pChannel->setAudioDriver(AudioDriverComboBox->currentText()))
205			iErrors++;
206			} else {
207			qsamplerDevice *pDevice = m_audioDevices.at(AudioDeviceComboBox->currentItem());
208			if (pDevice == NULL)
209			iErrors++;
210			else if (!m_pChannel->setAudioDevice(pDevice->deviceID()))
211			iErrors++;
212			}
213			// Accept MIDI driver or device selection...
214			if (m_midiDevices.isEmpty()) {
215			if (!m_pChannel->setMidiDriver(MidiDriverComboBox->currentText()))
216			iErrors++;
217			} else {
218			qsamplerDevice *pDevice = m_midiDevices.at(MidiDeviceComboBox->currentItem());
219			if (pDevice == NULL)
220			iErrors++;
221			else if (!m_pChannel->setMidiDevice(pDevice->deviceID()))
222			iErrors++;
223			}
224	capela	104	// MIDI input port number...
225			if (!m_pChannel->setMidiPort(MidiPortSpinBox->value()))
226	capela	161	iErrors++;
227	capela	104	// MIDI input channel...
228	capela	255	if (!m_pChannel->setMidiChannel(MidiChannelComboBox->currentItem()))
229	capela	104	iErrors++;
230	capela	115	// Engine name...
231			if (!m_pChannel->loadEngine(EngineNameComboBox->currentText()))
232	capela	104	iErrors++;
233			// Instrument file and index...
234	capela	299	if (!m_pChannel->loadInstrument(InstrumentFileComboBox->currentText(), InstrumentNrComboBox->currentItem()))
235	capela	104	iErrors++;
236			// Show error messages?
237			if (iErrors > 0)
238			m_pChannel->appendMessagesError(tr("Some channel settings could not be set.\n\nSorry."));
239			}
240
241	capela	176	// Save default engine name, instrument directory and history...
242	capela	104	pOptions->sInstrumentDir = QFileInfo(InstrumentFileComboBox->currentText()).dirPath(true);
243	capela	176	pOptions->sEngineName = EngineNameComboBox->currentText();
244			pOptions->sAudioDriver = AudioDriverComboBox->currentText();
245			pOptions->sMidiDriver = MidiDriverComboBox->currentText();
246	capela	104	pOptions->saveComboBoxHistory(InstrumentFileComboBox);
247
248			// Just go with dialog acceptance.
249			QDialog::accept();
250			}
251
252
253			// Reject settings (Cancel button slot).
254			void qsamplerChannelForm::reject (void)
255			{
256			bool bReject = true;
257
258			// Check if there's any pending changes...
259	capela	176	if (m_iDirtyCount > 0 && OkPushButton->isEnabled()) {
260	capela	104	switch (QMessageBox::warning(this, tr("Warning"),
261			tr("Some channel settings have been changed.\n\n"
262			"Do you want to apply the changes?"),
263			tr("Apply"), tr("Discard"), tr("Cancel"))) {
264			case 0: // Apply...
265			accept();
266			return;
267			case 1: // Discard
268			break;
269			default: // Cancel.
270			bReject = false;
271			}
272			}
273
274			if (bReject)
275			QDialog::reject();
276			}
277
278
279			// Browse and open an instrument file.
280			void qsamplerChannelForm::openInstrumentFile (void)
281			{
282			qsamplerOptions *pOptions = m_pChannel->options();
283			if (pOptions == NULL)
284			return;
285
286			// FIXME: the instrument file filters should be restricted,
287			// depending on the current engine.
288			QString sInstrumentFile = QFileDialog::getOpenFileName(
289			pOptions->sInstrumentDir, // Start here.
290			tr("Instrument files") + " (.gig .dls)", // Filter (GIG and DLS files)
291			this, 0, // Parent and name (none)
292			tr("Instrument files") // Caption.
293			);
294
295			if (sInstrumentFile.isEmpty())
296			return;
297
298			InstrumentFileComboBox->setCurrentText(sInstrumentFile);
299			}
300
301
302			// Refresh the actual instrument name.
303			void qsamplerChannelForm::updateInstrumentName (void)
304			{
305	capela	341	qsamplerOptions *pOptions = m_pChannel->options();
306			if (pOptions == NULL)
307			return;
308
309	capela	299	// Finally this better idea would be to use libgig
310			// to retrieve the REAL instrument names.
311			InstrumentNrComboBox->clear();
312			InstrumentNrComboBox->insertStringList(
313	capela	344	qsamplerChannel::getInstrumentList(
314			InstrumentFileComboBox->currentText(),
315			pOptions->bInstrumentNames)
316	capela	299	);
317	capela	104
318			optionsChanged();
319			}
320
321	capela	487	// Show device options dialog.
322			void qsamplerChannelForm::setupDevice ( qsamplerDevice *pDevice )
323			{
324			if (pDevice == NULL)
325			return;
326	capela	104
327	capela	487	// Create the device form if not already...
328			if (m_pDeviceForm == NULL) {
329			m_pDeviceForm = new qsamplerDeviceForm(this, 0,
330			WType_Dialog \| WShowModal);
331			m_pDeviceForm->setMainForm(m_pChannel->mainForm());
332			m_pDeviceForm->move(QDialog::pos() + QPoint(32, 32));
333			}
334
335			// Refresh the device form with selected data.
336			if (m_pDeviceForm) {
337			m_pDeviceForm->setClient(m_pChannel->client()); // <-- refreshDevices().
338			m_pDeviceForm->setDevice(pDevice->deviceType(),
339			pDevice->deviceID());
340			m_pDeviceForm->show();
341			}
342			}
343
344
345	capela	452	// Refresh MIDI device options.
346			void qsamplerChannelForm::selectMidiDriver ( const QString& sMidiDriver )
347			{
348	capela	454	const QString sDriverName = sMidiDriver.upper();
349
350	capela	452	MidiDeviceComboBox->clear();
351			m_audioDevices.clear();
352	capela	104
353	capela	452	const QPixmap& midiPixmap = QPixmap::fromMimeSource("midi2.png");
354			int *piDeviceIDs = qsamplerDevice::getDevices(m_pChannel->client(),
355			qsamplerDevice::Midi);
356			for (int i = 0; piDeviceIDs && piDeviceIDs[i] >= 0; i++) {
357	capela	484	qsamplerDevice *pDevice = new qsamplerDevice(m_pChannel->mainForm(),
358	capela	452	qsamplerDevice::Midi, piDeviceIDs[i]);
359	capela	454	if (pDevice->driverName().upper() == sDriverName) {
360	capela	452	MidiDeviceComboBox->insertItem(midiPixmap, pDevice->deviceName());
361			m_midiDevices.append(pDevice);
362			} else {
363			delete pDevice;
364			}
365			}
366
367			bool bEnabled = !m_midiDevices.isEmpty();
368	capela	454	if (!bEnabled)
369			MidiDeviceComboBox->insertItem(tr("(New MIDI device)"));
370	capela	452	MidiDeviceTextLabel->setEnabled(bEnabled);
371			MidiDeviceComboBox->setEnabled(bEnabled);
372	capela	487	MidiDevicePushButton->setEnabled(bEnabled);
373	capela	452	optionsChanged();
374			}
375
376
377	capela	455	// Select MIDI device options.
378			void qsamplerChannelForm::selectMidiDevice ( int iMidiItem )
379			{
380			qsamplerDevice *pDevice = m_midiDevices.at(iMidiItem);
381			if (pDevice) {
382	capela	462	const qsamplerDeviceParamMap& params = pDevice->params();
383	capela	455	int iPorts = params["PORTS"].value.toInt();
384			MidiPortTextLabel->setEnabled(iPorts > 0);
385			MidiPortSpinBox->setEnabled(iPorts > 0);
386			if (iPorts > 0)
387			MidiPortSpinBox->setMaxValue(iPorts - 1);
388			}
389			optionsChanged();
390			}
391
392
393	capela	487	// MIDI device options.
394			void qsamplerChannelForm::setupMidiDevice (void)
395			{
396			setupDevice(m_midiDevices.at(MidiDeviceComboBox->currentItem()));
397			}
398
399
400	capela	452	// Refresh Audio device options.
401			void qsamplerChannelForm::selectAudioDriver ( const QString& sAudioDriver )
402			{
403	capela	454	const QString sDriverName = sAudioDriver.upper();
404
405	capela	452	AudioDeviceComboBox->clear();
406			m_audioDevices.clear();
407
408			const QPixmap& audioPixmap = QPixmap::fromMimeSource("audio2.png");
409			int *piDeviceIDs = qsamplerDevice::getDevices(m_pChannel->client(),
410			qsamplerDevice::Audio);
411			for (int i = 0; piDeviceIDs && piDeviceIDs[i] >= 0; i++) {
412	capela	484	qsamplerDevice *pDevice = new qsamplerDevice(m_pChannel->mainForm(),
413	capela	452	qsamplerDevice::Audio, piDeviceIDs[i]);
414	capela	454	if (pDevice->driverName().upper() == sDriverName) {
415	capela	452	AudioDeviceComboBox->insertItem(audioPixmap, pDevice->deviceName());
416			m_audioDevices.append(pDevice);
417			} else {
418			delete pDevice;
419			}
420			}
421
422			bool bEnabled = !m_audioDevices.isEmpty();
423	capela	454	if (!bEnabled)
424			AudioDeviceComboBox->insertItem(tr("(New Audio device)"));
425	capela	452	AudioDeviceTextLabel->setEnabled(bEnabled);
426			AudioDeviceComboBox->setEnabled(bEnabled);
427	capela	487	AudioDevicePushButton->setEnabled(bEnabled);
428	capela	452	optionsChanged();
429			}
430
431
432	capela	455	// Select Audio device options.
433			void qsamplerChannelForm::selectAudioDevice ( int iAudioItem )
434			{
435			qsamplerDevice *pDevice = m_audioDevices.at(iAudioItem);
436			if (pDevice) {
437			// Is there anything to do here?
438			}
439			optionsChanged();
440			}
441
442
443	capela	487	// Audio device options.
444			void qsamplerChannelForm::setupAudioDevice (void)
445			{
446			setupDevice(m_audioDevices.at(AudioDeviceComboBox->currentItem()));
447			}
448
449
450	capela	104	// Dirty up settings.
451			void qsamplerChannelForm::optionsChanged (void)
452			{
453			if (m_iDirtySetup > 0)
454			return;
455
456			m_iDirtyCount++;
457			stabilizeForm();
458			}
459
460
461			// Stabilize current form state.
462			void qsamplerChannelForm::stabilizeForm (void)
463			{
464	capela	145	const QString& sFilename = InstrumentFileComboBox->currentText();
465	capela	104	OkPushButton->setEnabled(m_iDirtyCount > 0 && !sFilename.isEmpty() && QFileInfo(sFilename).exists());
466			}
467
468
469			// end of qsamplerChannelForm.ui.h
470