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());
    // 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());

        // 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 diabled...
    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();
}


// 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();
}


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