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 "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);

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


// Kind of destructor.
void qsamplerChannelForm::destroy (void)
{
}


// 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->client(),
                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->client(),
                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++;
        // FIXME: These are better leave disabled...
    MidiPortTextLabel->setEnabled(false);
    MidiPortSpinBox->setEnabled(false);
    // 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();
}


// 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->client(),
                        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);
        optionsChanged();
}


// Select MIDI device options.
void qsamplerChannelForm::selectMidiDevice ( int iMidiItem )
{
        qsamplerDevice *pDevice = m_midiDevices.at(iMidiItem);
        if (pDevice) {
                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();
}


// 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->client(),
                        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);
        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();
}


// 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			#include "config.h"
30
31
32			// Kind of constructor.
33			void qsamplerChannelForm::init (void)
34			{
35			// Initialize locals.
36			m_pChannel = NULL;
37
38			m_iDirtySetup = 0;
39			m_iDirtyCount = 0;
40
41	capela	452	m_midiDevices.setAutoDelete(true);
42			m_audioDevices.setAutoDelete(true);
43
44	capela	104	// Try to restore normal window positioning.
45			adjustSize();
46			}
47
48
49			// Kind of destructor.
50			void qsamplerChannelForm::destroy (void)
51			{
52			}
53
54
55			// Channel dialog setup formal initializer.
56	capela	295	void qsamplerChannelForm::setup ( qsamplerChannel *pChannel )
57	capela	104	{
58			m_pChannel = pChannel;
59
60			m_iDirtySetup = 0;
61			m_iDirtyCount = 0;
62
63			if (m_pChannel == NULL)
64			return;
65
66	capela	295	// It can be a brand new channel, remember?
67			bool bNew = (m_pChannel->channelID() < 0);
68			setCaption(m_pChannel->channelName());
69	capela	104
70			// Check if we're up and connected.
71			if (m_pChannel->client() == NULL)
72			return;
73
74			qsamplerOptions *pOptions = m_pChannel->options();
75			if (pOptions == NULL)
76			return;
77
78			// Avoid nested changes.
79			m_iDirtySetup++;
80
81			// Load combo box history...
82			pOptions->loadComboBoxHistory(InstrumentFileComboBox);
83
84			// Populate Engines list.
85			const char **ppszEngines = ::lscp_get_available_engines(m_pChannel->client());
86			if (ppszEngines) {
87			EngineNameComboBox->clear();
88			for (int iEngine = 0; ppszEngines[iEngine]; iEngine++)
89			EngineNameComboBox->insertItem(ppszEngines[iEngine]);
90			}
91			else m_pChannel->appendMessagesClient("lscp_get_available_engines");
92	capela	145
93	capela	104	// Populate Audio output type list.
94	capela	430	AudioDriverComboBox->clear();
95			AudioDriverComboBox->insertStringList(
96			qsamplerDevice::getDrivers(m_pChannel->client(), qsamplerDevice::Audio));
97	capela	104
98			// Populate MIDI input type list.
99	capela	430	MidiDriverComboBox->clear();
100			MidiDriverComboBox->insertStringList(
101			qsamplerDevice::getDrivers(m_pChannel->client(), qsamplerDevice::Midi));
102	capela	145
103	capela	104	// Read proper channel information,
104			// and populate the channel form fields.
105
106			// Engine name...
107	capela	145	QString sEngineName = pChannel->engineName();
108	capela	400	if (sEngineName.isEmpty() \|\| bNew)
109	capela	176	sEngineName = pOptions->sEngineName;
110	capela	145	if (sEngineName.isEmpty())
111	capela	388	sEngineName = qsamplerChannel::noEngineName();
112	capela	145	if (EngineNameComboBox->listBox()->findItem(sEngineName, Qt::ExactMatch) == NULL)
113			EngineNameComboBox->insertItem(sEngineName);
114			EngineNameComboBox->setCurrentText(sEngineName);
115	capela	104	// Instrument filename and index...
116	capela	145	QString sInstrumentFile = pChannel->instrumentFile();
117			if (sInstrumentFile.isEmpty())
118	capela	388	sInstrumentFile = qsamplerChannel::noInstrumentName();
119	capela	145	InstrumentFileComboBox->setCurrentText(sInstrumentFile);
120	capela	299	InstrumentNrComboBox->clear();
121	capela	344	InstrumentNrComboBox->insertStringList(
122			qsamplerChannel::getInstrumentList(sInstrumentFile,
123			pOptions->bInstrumentNames));
124	capela	299	InstrumentNrComboBox->setCurrentItem(pChannel->instrumentNr());
125	capela	452
126			// MIDI input device...
127			qsamplerDevice midiDevice(m_pChannel->client(),
128			qsamplerDevice::Midi, m_pChannel->midiDevice());
129	capela	176	// MIDI input driver...
130	capela	452	QString sMidiDriver = midiDevice.driverName();
131			if (sMidiDriver.isEmpty() \|\| bNew)
132			sMidiDriver = pOptions->sMidiDriver;
133			if (!sMidiDriver.isEmpty()) {
134			if (MidiDriverComboBox->listBox()->findItem(sMidiDriver, Qt::ExactMatch) == NULL)
135			MidiDriverComboBox->insertItem(sMidiDriver);
136			MidiDriverComboBox->setCurrentText(sMidiDriver);
137			}
138			selectMidiDriver(sMidiDriver);
139			if (!bNew)
140			MidiDeviceComboBox->setCurrentText(midiDevice.deviceName());
141	capela	455	selectMidiDevice(MidiDeviceComboBox->currentItem());
142	capela	176	// MIDI input port...
143	capela	104	MidiPortSpinBox->setValue(pChannel->midiPort());
144	capela	176	// MIDI input channel...
145			int iMidiChannel = pChannel->midiChannel();
146	capela	295	// When new, try to suggest a sensible MIDI channel...
147			if (iMidiChannel < 0)
148			iMidiChannel = (::lscp_get_channels(m_pChannel->client()) % 16);
149	capela	255	MidiChannelComboBox->setCurrentItem(iMidiChannel);
150	capela	455
151	capela	452	// Audio output device...
152			qsamplerDevice audioDevice(m_pChannel->client(),
153			qsamplerDevice::Audio, m_pChannel->audioDevice());
154			// Audio output driver...
155			QString sAudioDriver = audioDevice.driverName();
156			if (sAudioDriver.isEmpty() \|\| bNew)
157			sAudioDriver = pOptions->sAudioDriver;
158			if (!sAudioDriver.isEmpty()) {
159			if (AudioDriverComboBox->listBox()->findItem(sAudioDriver, Qt::ExactMatch) == NULL)
160			AudioDriverComboBox->insertItem(sAudioDriver);
161			AudioDriverComboBox->setCurrentText(sAudioDriver);
162			}
163			selectAudioDriver(sAudioDriver);
164			if (!bNew)
165			AudioDeviceComboBox->setCurrentText(audioDevice.deviceName());
166	capela	455	selectAudioDevice(AudioDeviceComboBox->currentItem());
167	capela	452
168	capela	391	// As convenient, make it ready on stabilizeForm() for
169			// prompt acceptance, if we got the minimum required...
170	capela	395	if (sEngineName != qsamplerChannel::noEngineName() &&
171			sInstrumentFile != qsamplerChannel::noInstrumentName())
172			m_iDirtyCount++;
173	capela	455	// FIXME: These are better leave disabled...
174	capela	409	MidiPortTextLabel->setEnabled(false);
175			MidiPortSpinBox->setEnabled(false);
176	capela	104	// Done.
177			m_iDirtySetup--;
178			stabilizeForm();
179			}
180
181
182			// Accept settings (OK button slot).
183			void qsamplerChannelForm::accept (void)
184			{
185			if (m_pChannel == NULL)
186			return;
187
188			qsamplerOptions *pOptions = m_pChannel->options();
189			if (pOptions == NULL)
190			return;
191
192			// We'll go for it!
193			if (m_iDirtyCount > 0) {
194			int iErrors = 0;
195	capela	295	// Are we a new channel?
196			if (!m_pChannel->addChannel())
197			iErrors++;
198	capela	452	// Accept Audio driver or device selection...
199			if (m_audioDevices.isEmpty()) {
200			if (!m_pChannel->setAudioDriver(AudioDriverComboBox->currentText()))
201			iErrors++;
202			} else {
203			qsamplerDevice *pDevice = m_audioDevices.at(AudioDeviceComboBox->currentItem());
204			if (pDevice == NULL)
205			iErrors++;
206			else if (!m_pChannel->setAudioDevice(pDevice->deviceID()))
207			iErrors++;
208			}
209			// Accept MIDI driver or device selection...
210			if (m_midiDevices.isEmpty()) {
211			if (!m_pChannel->setMidiDriver(MidiDriverComboBox->currentText()))
212			iErrors++;
213			} else {
214			qsamplerDevice *pDevice = m_midiDevices.at(MidiDeviceComboBox->currentItem());
215			if (pDevice == NULL)
216			iErrors++;
217			else if (!m_pChannel->setMidiDevice(pDevice->deviceID()))
218			iErrors++;
219			}
220	capela	104	// MIDI input port number...
221			if (!m_pChannel->setMidiPort(MidiPortSpinBox->value()))
222	capela	161	iErrors++;
223	capela	104	// MIDI input channel...
224	capela	255	if (!m_pChannel->setMidiChannel(MidiChannelComboBox->currentItem()))
225	capela	104	iErrors++;
226	capela	115	// Engine name...
227			if (!m_pChannel->loadEngine(EngineNameComboBox->currentText()))
228	capela	104	iErrors++;
229			// Instrument file and index...
230	capela	299	if (!m_pChannel->loadInstrument(InstrumentFileComboBox->currentText(), InstrumentNrComboBox->currentItem()))
231	capela	104	iErrors++;
232			// Show error messages?
233			if (iErrors > 0)
234			m_pChannel->appendMessagesError(tr("Some channel settings could not be set.\n\nSorry."));
235			}
236
237	capela	176	// Save default engine name, instrument directory and history...
238	capela	104	pOptions->sInstrumentDir = QFileInfo(InstrumentFileComboBox->currentText()).dirPath(true);
239	capela	176	pOptions->sEngineName = EngineNameComboBox->currentText();
240			pOptions->sAudioDriver = AudioDriverComboBox->currentText();
241			pOptions->sMidiDriver = MidiDriverComboBox->currentText();
242	capela	104	pOptions->saveComboBoxHistory(InstrumentFileComboBox);
243
244			// Just go with dialog acceptance.
245			QDialog::accept();
246			}
247
248
249			// Reject settings (Cancel button slot).
250			void qsamplerChannelForm::reject (void)
251			{
252			bool bReject = true;
253
254			// Check if there's any pending changes...
255	capela	176	if (m_iDirtyCount > 0 && OkPushButton->isEnabled()) {
256	capela	104	switch (QMessageBox::warning(this, tr("Warning"),
257			tr("Some channel settings have been changed.\n\n"
258			"Do you want to apply the changes?"),
259			tr("Apply"), tr("Discard"), tr("Cancel"))) {
260			case 0: // Apply...
261			accept();
262			return;
263			case 1: // Discard
264			break;
265			default: // Cancel.
266			bReject = false;
267			}
268			}
269
270			if (bReject)
271			QDialog::reject();
272			}
273
274
275			// Browse and open an instrument file.
276			void qsamplerChannelForm::openInstrumentFile (void)
277			{
278			qsamplerOptions *pOptions = m_pChannel->options();
279			if (pOptions == NULL)
280			return;
281
282			// FIXME: the instrument file filters should be restricted,
283			// depending on the current engine.
284			QString sInstrumentFile = QFileDialog::getOpenFileName(
285			pOptions->sInstrumentDir, // Start here.
286			tr("Instrument files") + " (.gig .dls)", // Filter (GIG and DLS files)
287			this, 0, // Parent and name (none)
288			tr("Instrument files") // Caption.
289			);
290
291			if (sInstrumentFile.isEmpty())
292			return;
293
294			InstrumentFileComboBox->setCurrentText(sInstrumentFile);
295			}
296
297
298			// Refresh the actual instrument name.
299			void qsamplerChannelForm::updateInstrumentName (void)
300			{
301	capela	341	qsamplerOptions *pOptions = m_pChannel->options();
302			if (pOptions == NULL)
303			return;
304
305	capela	299	// Finally this better idea would be to use libgig
306			// to retrieve the REAL instrument names.
307			InstrumentNrComboBox->clear();
308			InstrumentNrComboBox->insertStringList(
309	capela	344	qsamplerChannel::getInstrumentList(
310			InstrumentFileComboBox->currentText(),
311			pOptions->bInstrumentNames)
312	capela	299	);
313	capela	104
314			optionsChanged();
315			}
316
317
318	capela	452	// Refresh MIDI device options.
319			void qsamplerChannelForm::selectMidiDriver ( const QString& sMidiDriver )
320			{
321	capela	454	const QString sDriverName = sMidiDriver.upper();
322
323	capela	452	MidiDeviceComboBox->clear();
324			m_audioDevices.clear();
325	capela	104
326	capela	452	const QPixmap& midiPixmap = QPixmap::fromMimeSource("midi2.png");
327			int *piDeviceIDs = qsamplerDevice::getDevices(m_pChannel->client(),
328			qsamplerDevice::Midi);
329			for (int i = 0; piDeviceIDs && piDeviceIDs[i] >= 0; i++) {
330			qsamplerDevice *pDevice = new qsamplerDevice(m_pChannel->client(),
331			qsamplerDevice::Midi, piDeviceIDs[i]);
332	capela	454	if (pDevice->driverName().upper() == sDriverName) {
333	capela	452	MidiDeviceComboBox->insertItem(midiPixmap, pDevice->deviceName());
334			m_midiDevices.append(pDevice);
335			} else {
336			delete pDevice;
337			}
338			}
339
340			bool bEnabled = !m_midiDevices.isEmpty();
341	capela	454	if (!bEnabled)
342			MidiDeviceComboBox->insertItem(tr("(New MIDI device)"));
343	capela	452	MidiDeviceTextLabel->setEnabled(bEnabled);
344			MidiDeviceComboBox->setEnabled(bEnabled);
345			optionsChanged();
346			}
347
348
349	capela	455	// Select MIDI device options.
350			void qsamplerChannelForm::selectMidiDevice ( int iMidiItem )
351			{
352			qsamplerDevice *pDevice = m_midiDevices.at(iMidiItem);
353			if (pDevice) {
354			qsamplerDeviceParamMap& params = pDevice->params();
355			int iPorts = params["PORTS"].value.toInt();
356			MidiPortTextLabel->setEnabled(iPorts > 0);
357			MidiPortSpinBox->setEnabled(iPorts > 0);
358			if (iPorts > 0)
359			MidiPortSpinBox->setMaxValue(iPorts - 1);
360			}
361			optionsChanged();
362			}
363
364
365	capela	452	// Refresh Audio device options.
366			void qsamplerChannelForm::selectAudioDriver ( const QString& sAudioDriver )
367			{
368	capela	454	const QString sDriverName = sAudioDriver.upper();
369
370	capela	452	AudioDeviceComboBox->clear();
371			m_audioDevices.clear();
372
373			const QPixmap& audioPixmap = QPixmap::fromMimeSource("audio2.png");
374			int *piDeviceIDs = qsamplerDevice::getDevices(m_pChannel->client(),
375			qsamplerDevice::Audio);
376			for (int i = 0; piDeviceIDs && piDeviceIDs[i] >= 0; i++) {
377			qsamplerDevice *pDevice = new qsamplerDevice(m_pChannel->client(),
378			qsamplerDevice::Audio, piDeviceIDs[i]);
379	capela	454	if (pDevice->driverName().upper() == sDriverName) {
380	capela	452	AudioDeviceComboBox->insertItem(audioPixmap, pDevice->deviceName());
381			m_audioDevices.append(pDevice);
382			} else {
383			delete pDevice;
384			}
385			}
386
387			bool bEnabled = !m_audioDevices.isEmpty();
388	capela	454	if (!bEnabled)
389			AudioDeviceComboBox->insertItem(tr("(New Audio device)"));
390	capela	452	AudioDeviceTextLabel->setEnabled(bEnabled);
391			AudioDeviceComboBox->setEnabled(bEnabled);
392			optionsChanged();
393			}
394
395
396	capela	455	// Select Audio device options.
397			void qsamplerChannelForm::selectAudioDevice ( int iAudioItem )
398			{
399			qsamplerDevice *pDevice = m_audioDevices.at(iAudioItem);
400			if (pDevice) {
401			// Is there anything to do here?
402			}
403			optionsChanged();
404			}
405
406
407	capela	104	// Dirty up settings.
408			void qsamplerChannelForm::optionsChanged (void)
409			{
410			if (m_iDirtySetup > 0)
411			return;
412
413			m_iDirtyCount++;
414			stabilizeForm();
415			}
416
417
418			// Stabilize current form state.
419			void qsamplerChannelForm::stabilizeForm (void)
420			{
421	capela	145	const QString& sFilename = InstrumentFileComboBox->currentText();
422	capela	104	OkPushButton->setEnabled(m_iDirtyCount > 0 && !sFilename.isEmpty() && QFileInfo(sFilename).exists());
423			}
424
425
426			// end of qsamplerChannelForm.ui.h
427