trunk/src/qsamplerChannelForm.ui.h

// qsamplerChannelForm.ui.h
//
// ui.h extension file, included from the uic-generated form implementation.
/****************************************************************************
   Copyright (C) 2004, 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;

    // 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.
    const char **ppszAudioDrivers = ::lscp_get_available_audio_drivers(m_pChannel->client());
    if (ppszAudioDrivers) {
        AudioDriverComboBox->clear();
        for (int iAudioDriver = 0; ppszAudioDrivers[iAudioDriver]; iAudioDriver++)
            AudioDriverComboBox->insertItem(ppszAudioDrivers[iAudioDriver]);
    }
    else m_pChannel->appendMessagesClient("lscp_get_available_audio_drivers");

    // Populate MIDI input type list.
    const char **ppszMidiDrivers = ::lscp_get_available_midi_drivers(m_pChannel->client());
    if (ppszMidiDrivers) {
        MidiDriverComboBox->clear();
        for (int iMidiDriver = 0; ppszMidiDrivers[iMidiDriver]; iMidiDriver++)
            MidiDriverComboBox->insertItem(ppszMidiDrivers[iMidiDriver]);
    }
    else m_pChannel->appendMessagesClient("lscp_get_available_midi_drivers");

    // 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 = tr("(No engine)");
    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 = tr("(No instrument)");
    InstrumentFileComboBox->setCurrentText(sInstrumentFile);
    InstrumentNrSpinBox->setValue(pChannel->instrumentNr());
    // MIDI input driver...
    QString sMidiDriver = pChannel->midiDriver();
    if (sMidiDriver.isEmpty() || bNew)
        sMidiDriver = pOptions->sMidiDriver;
    if (!sMidiDriver.isEmpty()) {
        if (MidiDriverComboBox->listBox()->findItem(sMidiDriver, Qt::ExactMatch) == NULL)
            MidiDriverComboBox->insertItem(sMidiDriver);
        MidiDriverComboBox->setCurrentText(sMidiDriver);
    }
    // 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 driver...
    QString sAudioDriver = pChannel->audioDriver();
    if (sAudioDriver.isEmpty() || bNew)
        sAudioDriver = pOptions->sAudioDriver;
    if (!sAudioDriver.isEmpty()) {
        if (AudioDriverComboBox->listBox()->findItem(sAudioDriver, Qt::ExactMatch) == NULL)
            AudioDriverComboBox->insertItem(sAudioDriver);
        AudioDriverComboBox->setCurrentText(sAudioDriver);
    }
    // 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++;
        // Audio output driver type...
        if (!m_pChannel->setAudioDriver(AudioDriverComboBox->currentText()))
            iErrors++;
        // MIDI input driver type...
        if (!m_pChannel->setMidiDriver(MidiDriverComboBox->currentText()))
            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(), InstrumentNrSpinBox->value()))
            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)
{
    // FIXME: A better idea would be to use libgig
    // to retrieve the REAL instrument name.
    InstrumentNameTextLabel->setText(QFileInfo(InstrumentFileComboBox->currentText()).fileName()
        + " [" + QString::number(InstrumentNrSpinBox->value()) + "]");

    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, 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	// Try to restore normal window positioning.
42	adjustSize();
43	}
44
45
46	// Kind of destructor.
47	void qsamplerChannelForm::destroy (void)
48	{
49	}
50
51
52	// Channel dialog setup formal initializer.
53	void qsamplerChannelForm::setup ( qsamplerChannel *pChannel )
54	{
55	m_pChannel = pChannel;
56
57	m_iDirtySetup = 0;
58	m_iDirtyCount = 0;
59
60	if (m_pChannel == NULL)
61	return;
62
63	// It can be a brand new channel, remember?
64	bool bNew = (m_pChannel->channelID() < 0);
65	setCaption(m_pChannel->channelName());
66
67	// Check if we're up and connected.
68	if (m_pChannel->client() == NULL)
69	return;
70
71	qsamplerOptions *pOptions = m_pChannel->options();
72	if (pOptions == NULL)
73	return;
74
75	// Avoid nested changes.
76	m_iDirtySetup++;
77
78	// Load combo box history...
79	pOptions->loadComboBoxHistory(InstrumentFileComboBox);
80
81	// Populate Engines list.
82	const char **ppszEngines = ::lscp_get_available_engines(m_pChannel->client());
83	if (ppszEngines) {
84	EngineNameComboBox->clear();
85	for (int iEngine = 0; ppszEngines[iEngine]; iEngine++)
86	EngineNameComboBox->insertItem(ppszEngines[iEngine]);
87	}
88	else m_pChannel->appendMessagesClient("lscp_get_available_engines");
89
90	// Populate Audio output type list.
91	const char **ppszAudioDrivers = ::lscp_get_available_audio_drivers(m_pChannel->client());
92	if (ppszAudioDrivers) {
93	AudioDriverComboBox->clear();
94	for (int iAudioDriver = 0; ppszAudioDrivers[iAudioDriver]; iAudioDriver++)
95	AudioDriverComboBox->insertItem(ppszAudioDrivers[iAudioDriver]);
96	}
97	else m_pChannel->appendMessagesClient("lscp_get_available_audio_drivers");
98
99	// Populate MIDI input type list.
100	const char **ppszMidiDrivers = ::lscp_get_available_midi_drivers(m_pChannel->client());
101	if (ppszMidiDrivers) {
102	MidiDriverComboBox->clear();
103	for (int iMidiDriver = 0; ppszMidiDrivers[iMidiDriver]; iMidiDriver++)
104	MidiDriverComboBox->insertItem(ppszMidiDrivers[iMidiDriver]);
105	}
106	else m_pChannel->appendMessagesClient("lscp_get_available_midi_drivers");
107
108	// Read proper channel information,
109	// and populate the channel form fields.
110
111	// Engine name...
112	QString sEngineName = pChannel->engineName();
113	if (sEngineName.isEmpty() && bNew)
114	sEngineName = pOptions->sEngineName;
115	if (sEngineName.isEmpty())
116	sEngineName = tr("(No engine)");
117	if (EngineNameComboBox->listBox()->findItem(sEngineName, Qt::ExactMatch) == NULL)
118	EngineNameComboBox->insertItem(sEngineName);
119	EngineNameComboBox->setCurrentText(sEngineName);
120	// Instrument filename and index...
121	QString sInstrumentFile = pChannel->instrumentFile();
122	if (sInstrumentFile.isEmpty())
123	sInstrumentFile = tr("(No instrument)");
124	InstrumentFileComboBox->setCurrentText(sInstrumentFile);
125	InstrumentNrSpinBox->setValue(pChannel->instrumentNr());
126	// MIDI input driver...
127	QString sMidiDriver = pChannel->midiDriver();
128	if (sMidiDriver.isEmpty() \|\| bNew)
129	sMidiDriver = pOptions->sMidiDriver;
130	if (!sMidiDriver.isEmpty()) {
131	if (MidiDriverComboBox->listBox()->findItem(sMidiDriver, Qt::ExactMatch) == NULL)
132	MidiDriverComboBox->insertItem(sMidiDriver);
133	MidiDriverComboBox->setCurrentText(sMidiDriver);
134	}
135	// MIDI input port...
136	MidiPortSpinBox->setValue(pChannel->midiPort());
137	// MIDI input channel...
138	int iMidiChannel = pChannel->midiChannel();
139	// When new, try to suggest a sensible MIDI channel...
140	if (iMidiChannel < 0)
141	iMidiChannel = (::lscp_get_channels(m_pChannel->client()) % 16);
142	MidiChannelComboBox->setCurrentItem(iMidiChannel);
143	// Audio output driver...
144	QString sAudioDriver = pChannel->audioDriver();
145	if (sAudioDriver.isEmpty() \|\| bNew)
146	sAudioDriver = pOptions->sAudioDriver;
147	if (!sAudioDriver.isEmpty()) {
148	if (AudioDriverComboBox->listBox()->findItem(sAudioDriver, Qt::ExactMatch) == NULL)
149	AudioDriverComboBox->insertItem(sAudioDriver);
150	AudioDriverComboBox->setCurrentText(sAudioDriver);
151	}
152	// Done.
153	m_iDirtySetup--;
154	stabilizeForm();
155	}
156
157
158	// Accept settings (OK button slot).
159	void qsamplerChannelForm::accept (void)
160	{
161	if (m_pChannel == NULL)
162	return;
163
164	qsamplerOptions *pOptions = m_pChannel->options();
165	if (pOptions == NULL)
166	return;
167
168	// We'll go for it!
169	if (m_iDirtyCount > 0) {
170	int iErrors = 0;
171	// Are we a new channel?
172	if (!m_pChannel->addChannel())
173	iErrors++;
174	// Audio output driver type...
175	if (!m_pChannel->setAudioDriver(AudioDriverComboBox->currentText()))
176	iErrors++;
177	// MIDI input driver type...
178	if (!m_pChannel->setMidiDriver(MidiDriverComboBox->currentText()))
179	iErrors++;
180	// MIDI input port number...
181	if (!m_pChannel->setMidiPort(MidiPortSpinBox->value()))
182	iErrors++;
183	// MIDI input channel...
184	if (!m_pChannel->setMidiChannel(MidiChannelComboBox->currentItem()))
185	iErrors++;
186	// Engine name...
187	if (!m_pChannel->loadEngine(EngineNameComboBox->currentText()))
188	iErrors++;
189	// Instrument file and index...
190	if (!m_pChannel->loadInstrument(InstrumentFileComboBox->currentText(), InstrumentNrSpinBox->value()))
191	iErrors++;
192	// Show error messages?
193	if (iErrors > 0)
194	m_pChannel->appendMessagesError(tr("Some channel settings could not be set.\n\nSorry."));
195	}
196
197	// Save default engine name, instrument directory and history...
198	pOptions->sInstrumentDir = QFileInfo(InstrumentFileComboBox->currentText()).dirPath(true);
199	pOptions->sEngineName = EngineNameComboBox->currentText();
200	pOptions->sAudioDriver = AudioDriverComboBox->currentText();
201	pOptions->sMidiDriver = MidiDriverComboBox->currentText();
202	pOptions->saveComboBoxHistory(InstrumentFileComboBox);
203
204	// Just go with dialog acceptance.
205	QDialog::accept();
206	}
207
208
209	// Reject settings (Cancel button slot).
210	void qsamplerChannelForm::reject (void)
211	{
212	bool bReject = true;
213
214	// Check if there's any pending changes...
215	if (m_iDirtyCount > 0 && OkPushButton->isEnabled()) {
216	switch (QMessageBox::warning(this, tr("Warning"),
217	tr("Some channel settings have been changed.\n\n"
218	"Do you want to apply the changes?"),
219	tr("Apply"), tr("Discard"), tr("Cancel"))) {
220	case 0: // Apply...
221	accept();
222	return;
223	case 1: // Discard
224	break;
225	default: // Cancel.
226	bReject = false;
227	}
228	}
229
230	if (bReject)
231	QDialog::reject();
232	}
233
234
235	// Browse and open an instrument file.
236	void qsamplerChannelForm::openInstrumentFile (void)
237	{
238	qsamplerOptions *pOptions = m_pChannel->options();
239	if (pOptions == NULL)
240	return;
241
242	// FIXME: the instrument file filters should be restricted,
243	// depending on the current engine.
244	QString sInstrumentFile = QFileDialog::getOpenFileName(
245	pOptions->sInstrumentDir, // Start here.
246	tr("Instrument files") + " (.gig .dls)", // Filter (GIG and DLS files)
247	this, 0, // Parent and name (none)
248	tr("Instrument files") // Caption.
249	);
250
251	if (sInstrumentFile.isEmpty())
252	return;
253
254	InstrumentFileComboBox->setCurrentText(sInstrumentFile);
255	}
256
257
258	// Refresh the actual instrument name.
259	void qsamplerChannelForm::updateInstrumentName (void)
260	{
261	// FIXME: A better idea would be to use libgig
262	// to retrieve the REAL instrument name.
263	InstrumentNameTextLabel->setText(QFileInfo(InstrumentFileComboBox->currentText()).fileName()
264	+ " [" + QString::number(InstrumentNrSpinBox->value()) + "]");
265
266	optionsChanged();
267	}
268
269
270
271	// Dirty up settings.
272	void qsamplerChannelForm::optionsChanged (void)
273	{
274	if (m_iDirtySetup > 0)
275	return;
276
277	m_iDirtyCount++;
278	stabilizeForm();
279	}
280
281
282	// Stabilize current form state.
283	void qsamplerChannelForm::stabilizeForm (void)
284	{
285	const QString& sFilename = InstrumentFileComboBox->currentText();
286	OkPushButton->setEnabled(m_iDirtyCount > 0 && !sFilename.isEmpty() && QFileInfo(sFilename).exists());
287	}
288
289
290	// end of qsamplerChannelForm.ui.h
291