trunk/src/qsamplerInstrumentForm.cpp

// qsamplerInstrumentForm.cpp
//
/****************************************************************************
   Copyright (C) 2003-2007, rncbc aka Rui Nuno Capela. All rights reserved.
   Copyright (C) 2007, Christian Schoenebeck

   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 "qsamplerInstrumentForm.h"

#include "qsamplerAbout.h"
#include "qsamplerMainForm.h"

#include <QFileDialog>
#include <QMessageBox>

// Needed for lroundf()
#include <math.h>


namespace QSampler {

#ifndef CONFIG_ROUND
static inline long lroundf ( float x )
{
        if (x >= 0.0f)
                return long(x + 0.5f);
        else
                return long(x - 0.5f);
}
#endif

InstrumentForm::InstrumentForm ( QWidget* pParent )
        : QDialog(pParent)
{
        m_ui.setupUi(this);

        // Initialize locals.
        m_pInstrument = NULL;

        m_iDirtySetup = 0;
        m_iDirtyCount = 0;
        m_iDirtyName  = 0;

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


        QObject::connect(m_ui.MapComboBox,
                SIGNAL(activated(int)),
                SLOT(changed()));
        QObject::connect(m_ui.BankSpinBox,
                SIGNAL(valueChanged(int)),
                SLOT(changed()));
        QObject::connect(m_ui.ProgSpinBox,
                SIGNAL(valueChanged(int)),
                SLOT(changed()));
        QObject::connect(m_ui.NameLineEdit,
                SIGNAL(textChanged(const QString&)),
                SLOT(nameChanged(const QString&)));
        QObject::connect(m_ui.EngineNameComboBox,
                SIGNAL(activated(int)),
                SLOT(changed()));
        QObject::connect(m_ui.InstrumentFileComboBox,
                SIGNAL(activated(const QString&)),
                SLOT(updateInstrumentName()));
        QObject::connect(m_ui.InstrumentFileToolButton,
                SIGNAL(clicked()),
                SLOT(openInstrumentFile()));
        QObject::connect(m_ui.InstrumentNrComboBox,
                SIGNAL(activated(int)),
                SLOT(instrumentNrChanged()));
        QObject::connect(m_ui.VolumeSpinBox,
                SIGNAL(valueChanged(int)),
                SLOT(changed()));
        QObject::connect(m_ui.LoadModeComboBox,
                SIGNAL(activated(int)),
                SLOT(changed()));
        QObject::connect(m_ui.OkPushButton,
                SIGNAL(clicked()),
                SLOT(accept()));
        QObject::connect(m_ui.CancelPushButton,
                SIGNAL(clicked()),
                SLOT(reject()));
}


InstrumentForm::~InstrumentForm (void)
{
}


// Channel dialog setup formal initializer.
void InstrumentForm::setup ( qsamplerInstrument *pInstrument )
{
        m_pInstrument = pInstrument;

        m_iDirtySetup = 0;
        m_iDirtyCount = 0;
        m_iDirtyName  = 0;

        if (m_pInstrument == NULL)
                return;

        // Check if we're up and connected.
        MainForm* pMainForm = MainForm::getInstance();
        if (pMainForm == NULL)
                return;
        if (pMainForm->client() == NULL)
                return;

        qsamplerOptions *pOptions = pMainForm->options();
        if (pOptions == NULL)
                return;

        // It can be a brand new channel, remember?
        bool bNew = (m_pInstrument->bank() < 0 || m_pInstrument->prog() < 0);
        if (!bNew) {
                m_pInstrument->getInstrument();
                m_iDirtyName++;
        }

        // Avoid nested changes.
        m_iDirtySetup++;

        // Load combo box history...
        pOptions->loadComboBoxHistory(m_ui.InstrumentFileComboBox);

        // Populate maps list.
        m_ui.MapComboBox->clear();
        m_ui.MapComboBox->insertItems(0, qsamplerInstrument::getMapNames());

        // Populate Engines list.
        const char **ppszEngines
                = ::lscp_list_available_engines(pMainForm->client());
        if (ppszEngines) {
                m_ui.EngineNameComboBox->clear();
                for (int iEngine = 0; ppszEngines[iEngine]; iEngine++)
                        m_ui.EngineNameComboBox->addItem(ppszEngines[iEngine]);
        }
        else pMainForm->appendMessagesClient("lscp_list_available_engines");

        // Read proper instrument information,
        // and populate the instrument form fields.

        // Instrument map name...
        int iMap = (bNew ? pOptions->iMidiMap : m_pInstrument->map());
        if (iMap < 0)
                iMap = 0;
        const QString& sMapName = qsamplerInstrument::getMapName(iMap);
        if (!sMapName.isEmpty()) {
                m_ui.MapComboBox->setItemText(
                        m_ui.MapComboBox->currentIndex(),
                        sMapName);
        }
        // It might be no maps around...
        bool bMapEnabled = (m_ui.MapComboBox->count() > 0);
        m_ui.MapTextLabel->setEnabled(bMapEnabled);
        m_ui.MapComboBox->setEnabled(bMapEnabled);

        // Instrument bank/program...
        int iBank = (bNew ? pOptions->iMidiBank : m_pInstrument->bank());
        int iProg = (bNew ? pOptions->iMidiProg : m_pInstrument->prog()) + 1;
        if (bNew && iProg > 128) {
                iProg = 1;
                iBank++;
        }
        m_ui.BankSpinBox->setValue(iBank);
        m_ui.ProgSpinBox->setValue(iProg);

        // Instrument name...
        m_ui.NameLineEdit->setText(m_pInstrument->name());

        // Engine name...
        QString sEngineName = m_pInstrument->engineName();
        if (sEngineName.isEmpty() || bNew)
                sEngineName = pOptions->sEngineName;
        if (sEngineName.isEmpty())
                sEngineName = qsamplerChannel::noEngineName();
        if (m_ui.EngineNameComboBox->findText(sEngineName,
                        Qt::MatchExactly | Qt::MatchCaseSensitive) < 0) {
                m_ui.EngineNameComboBox->addItem(sEngineName);
        }
        m_ui.EngineNameComboBox->setCurrentIndex(
                m_ui.EngineNameComboBox->findText(sEngineName,
                        Qt::MatchExactly | Qt::MatchCaseSensitive));

        // Instrument filename and index...
        QString sInstrumentFile = m_pInstrument->instrumentFile();
        if (sInstrumentFile.isEmpty())
                sInstrumentFile = qsamplerChannel::noInstrumentName();
        m_ui.InstrumentFileComboBox->setEditText(sInstrumentFile);
        m_ui.InstrumentNrComboBox->clear();
        m_ui.InstrumentNrComboBox->insertItems(0,
                qsamplerChannel::getInstrumentList(sInstrumentFile,
                pOptions->bInstrumentNames));
        m_ui.InstrumentNrComboBox->setCurrentIndex(m_pInstrument->instrumentNr());

        // Instrument volume....
        int iVolume = (bNew ? pOptions->iVolume :
                ::lroundf(100.0f * m_pInstrument->volume()));
        m_ui.VolumeSpinBox->setValue(iVolume);

        // Instrument load mode...
        int iLoadMode = (bNew ? pOptions->iLoadMode :
                m_pInstrument->loadMode());
        m_ui.LoadModeComboBox->setCurrentIndex(iLoadMode);

        // Done.
        m_iDirtySetup--;
        stabilizeForm();

        // Done.
        m_iDirtySetup--;
        stabilizeForm();
}


// Special case for name change,
void InstrumentForm::nameChanged ( const QString& /* sName */ )
{
        if (m_iDirtySetup > 0)
                return;

        m_iDirtyName++;
        changed();
}


// Browse and open an instrument file.
void InstrumentForm::openInstrumentFile (void)
{
        MainForm* pMainForm = MainForm::getInstance();
        if (pMainForm == NULL)
                return;

        qsamplerOptions *pOptions = pMainForm->options();
        if (pOptions == NULL)
                return;

        // FIXME: the instrument file filters should be restricted,
        // depending on the current engine.
        QString sInstrumentFile = QFileDialog::getOpenFileName(this,
                QSAMPLER_TITLE ": " + tr("Instrument files"), // Caption.
                pOptions->sInstrumentDir,                 // Start here.
                tr("Instrument files") + " (*.gig *.dls)" // Filter (GIG and DLS files)
        );

        if (sInstrumentFile.isEmpty())
                return;

        m_ui.InstrumentFileComboBox->setEditText(sInstrumentFile);
        updateInstrumentName();
}


// Refresh the actual instrument name.
void InstrumentForm::updateInstrumentName (void)
{
        MainForm* pMainForm = MainForm::getInstance();
        if (pMainForm == NULL)
                return;

        qsamplerOptions *pOptions = pMainForm->options();
        if (pOptions == NULL)
                return;

        // TODO: this better idea would be to use libgig
        // to retrieve the REAL instrument names.
        m_ui.InstrumentNrComboBox->clear();
        m_ui.InstrumentNrComboBox->insertItems(0,
                qsamplerChannel::getInstrumentList(
                        m_ui.InstrumentFileComboBox->currentText(),
                        pOptions->bInstrumentNames)
        );

        instrumentNrChanged();
}


// Special case for instrumnet index change,
void InstrumentForm::instrumentNrChanged (void)
{
        if (m_iDirtySetup > 0)
                return;

        if (m_ui.NameLineEdit->text().isEmpty() || m_iDirtyName == 0) {
                m_ui.NameLineEdit->setText(m_ui.InstrumentNrComboBox->currentText());
                m_iDirtyName = 0;
        }

        changed();
}


// Accept settings (OK button slot).
void InstrumentForm::accept (void)
{
        if (m_pInstrument == NULL)
                return;

        MainForm* pMainForm = MainForm::getInstance();
        if (pMainForm == NULL)
                return;
        if (pMainForm->client() == NULL)
                return;

        qsamplerOptions *pOptions = pMainForm->options();
        if (pOptions == NULL)
                return;

        if (m_iDirtyCount > 0) {
                m_pInstrument->setMap(m_ui.MapComboBox->currentIndex());
                m_pInstrument->setBank(m_ui.BankSpinBox->value());
                m_pInstrument->setProg(m_ui.ProgSpinBox->value() - 1);
                m_pInstrument->setName(m_ui.NameLineEdit->text());
                m_pInstrument->setEngineName(m_ui.EngineNameComboBox->currentText());
                m_pInstrument->setInstrumentFile(m_ui.InstrumentFileComboBox->currentText());
                m_pInstrument->setInstrumentNr(m_ui.InstrumentNrComboBox->currentIndex());
                m_pInstrument->setVolume(0.01f * float(m_ui.VolumeSpinBox->value()));
                m_pInstrument->setLoadMode(m_ui.LoadModeComboBox->currentIndex());
        }

        // Save default engine name, instrument directory and history...
        pOptions->sInstrumentDir = QFileInfo(
                m_ui.InstrumentFileComboBox->currentText()).dir().absolutePath();
        pOptions->sEngineName = m_ui.EngineNameComboBox->currentText();
        pOptions->iMidiMap  = m_ui.MapComboBox->currentIndex();
        pOptions->iMidiBank = m_ui.BankSpinBox->value();
        pOptions->iMidiProg = m_ui.ProgSpinBox->value();
        pOptions->iVolume   = m_ui.VolumeSpinBox->value();
        pOptions->iLoadMode = m_ui.LoadModeComboBox->currentIndex();
        pOptions->saveComboBoxHistory(m_ui.InstrumentFileComboBox);

        // Just go with dialog acceptance.
        QDialog::accept();
}


// Reject settings (Cancel button slot).
void InstrumentForm::reject (void)
{
        bool bReject = true;

        // Check if there's any pending changes...
        if (m_iDirtyCount > 0 && m_ui.OkPushButton->isEnabled()) {
                switch (QMessageBox::warning(this,
                        QSAMPLER_TITLE ": " + 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;
                        break;
                }
        }

        if (bReject)
                QDialog::reject();
}


// Dirty up settings.
void InstrumentForm::changed (void)
{
        if (m_iDirtySetup > 0)
                return;

        m_iDirtyCount++;
        stabilizeForm();
}


// Stabilize current form state.
void InstrumentForm::stabilizeForm (void)
{
        bool bValid =
                !m_ui.NameLineEdit->text().isEmpty() &&
                m_ui.EngineNameComboBox->currentIndex() >= 0 &&
                m_ui.EngineNameComboBox->currentText() !=
                qsamplerChannel::noEngineName();

        const QString& sPath = m_ui.InstrumentFileComboBox->currentText();
        bValid = bValid && !sPath.isEmpty() && QFileInfo(sPath).exists();

        m_ui.OkPushButton->setEnabled(m_iDirtyCount > 0 && bValid);
}

} // namespace QSampler


// end of qsamplerInstrumentForm.cpp
1	capela	1464	// qsamplerInstrumentForm.cpp
2			//
3			/****************************************************************************
4			Copyright (C) 2003-2007, rncbc aka Rui Nuno Capela. All rights reserved.
5			Copyright (C) 2007, Christian Schoenebeck
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	schoenebeck	1461	#include "qsamplerInstrumentForm.h"
24
25			#include "qsamplerAbout.h"
26			#include "qsamplerMainForm.h"
27
28	capela	1499	#include <QFileDialog>
29			#include <QMessageBox>
30
31	schoenebeck	1461	// Needed for lroundf()
32			#include <math.h>
33
34	capela	1499
35	schoenebeck	1461	namespace QSampler {
36
37			#ifndef CONFIG_ROUND
38			static inline long lroundf ( float x )
39			{
40			if (x >= 0.0f)
41			return long(x + 0.5f);
42			else
43			return long(x - 0.5f);
44			}
45			#endif
46
47	capela	1504	InstrumentForm::InstrumentForm ( QWidget* pParent )
48			: QDialog(pParent)
49			{
50	capela	1509	m_ui.setupUi(this);
51	schoenebeck	1461
52			// Initialize locals.
53			m_pInstrument = NULL;
54
55			m_iDirtySetup = 0;
56			m_iDirtyCount = 0;
57			m_iDirtyName = 0;
58
59			// Try to restore normal window positioning.
60			adjustSize();
61	capela	1466
62
63	capela	1509	QObject::connect(m_ui.MapComboBox,
64	capela	1466	SIGNAL(activated(int)),
65			SLOT(changed()));
66	capela	1509	QObject::connect(m_ui.BankSpinBox,
67	capela	1466	SIGNAL(valueChanged(int)),
68			SLOT(changed()));
69	capela	1509	QObject::connect(m_ui.ProgSpinBox,
70	capela	1466	SIGNAL(valueChanged(int)),
71			SLOT(changed()));
72	capela	1509	QObject::connect(m_ui.NameLineEdit,
73	schoenebeck	1474	SIGNAL(textChanged(const QString&)),
74			SLOT(nameChanged(const QString&)));
75	capela	1509	QObject::connect(m_ui.EngineNameComboBox,
76	capela	1466	SIGNAL(activated(int)),
77			SLOT(changed()));
78	capela	1509	QObject::connect(m_ui.InstrumentFileComboBox,
79	schoenebeck	1474	SIGNAL(activated(const QString&)),
80	capela	1466	SLOT(updateInstrumentName()));
81	capela	1509	QObject::connect(m_ui.InstrumentFileToolButton,
82	capela	1466	SIGNAL(clicked()),
83			SLOT(openInstrumentFile()));
84	capela	1509	QObject::connect(m_ui.InstrumentNrComboBox,
85	capela	1466	SIGNAL(activated(int)),
86			SLOT(instrumentNrChanged()));
87	capela	1509	QObject::connect(m_ui.VolumeSpinBox,
88	capela	1466	SIGNAL(valueChanged(int)),
89			SLOT(changed()));
90	capela	1509	QObject::connect(m_ui.LoadModeComboBox,
91	capela	1466	SIGNAL(activated(int)),
92			SLOT(changed()));
93	capela	1509	QObject::connect(m_ui.OkPushButton,
94	capela	1466	SIGNAL(clicked()),
95			SLOT(accept()));
96	capela	1509	QObject::connect(m_ui.CancelPushButton,
97	capela	1466	SIGNAL(clicked()),
98			SLOT(reject()));
99	schoenebeck	1461	}
100
101	capela	1504
102			InstrumentForm::~InstrumentForm (void)
103			{
104	schoenebeck	1461	}
105
106	capela	1504
107	schoenebeck	1461	// Channel dialog setup formal initializer.
108			void InstrumentForm::setup ( qsamplerInstrument *pInstrument )
109			{
110			m_pInstrument = pInstrument;
111
112			m_iDirtySetup = 0;
113			m_iDirtyCount = 0;
114			m_iDirtyName = 0;
115
116			if (m_pInstrument == NULL)
117			return;
118
119			// Check if we're up and connected.
120			MainForm* pMainForm = MainForm::getInstance();
121			if (pMainForm == NULL)
122			return;
123			if (pMainForm->client() == NULL)
124			return;
125
126			qsamplerOptions *pOptions = pMainForm->options();
127			if (pOptions == NULL)
128			return;
129
130			// It can be a brand new channel, remember?
131			bool bNew = (m_pInstrument->bank() < 0 \|\| m_pInstrument->prog() < 0);
132			if (!bNew) {
133			m_pInstrument->getInstrument();
134			m_iDirtyName++;
135			}
136
137			// Avoid nested changes.
138			m_iDirtySetup++;
139
140			// Load combo box history...
141	capela	1509	pOptions->loadComboBoxHistory(m_ui.InstrumentFileComboBox);
142	schoenebeck	1461
143			// Populate maps list.
144	capela	1509	m_ui.MapComboBox->clear();
145			m_ui.MapComboBox->insertItems(0, qsamplerInstrument::getMapNames());
146	schoenebeck	1461
147			// Populate Engines list.
148	capela	1509	const char **ppszEngines
149			= ::lscp_list_available_engines(pMainForm->client());
150	schoenebeck	1461	if (ppszEngines) {
151	capela	1509	m_ui.EngineNameComboBox->clear();
152	schoenebeck	1461	for (int iEngine = 0; ppszEngines[iEngine]; iEngine++)
153	capela	1509	m_ui.EngineNameComboBox->addItem(ppszEngines[iEngine]);
154	schoenebeck	1461	}
155			else pMainForm->appendMessagesClient("lscp_list_available_engines");
156
157			// Read proper instrument information,
158			// and populate the instrument form fields.
159
160			// Instrument map name...
161			int iMap = (bNew ? pOptions->iMidiMap : m_pInstrument->map());
162			if (iMap < 0)
163			iMap = 0;
164			const QString& sMapName = qsamplerInstrument::getMapName(iMap);
165	capela	1499	if (!sMapName.isEmpty()) {
166	capela	1509	m_ui.MapComboBox->setItemText(
167			m_ui.MapComboBox->currentIndex(),
168	capela	1499	sMapName);
169			}
170	schoenebeck	1461	// It might be no maps around...
171	capela	1509	bool bMapEnabled = (m_ui.MapComboBox->count() > 0);
172			m_ui.MapTextLabel->setEnabled(bMapEnabled);
173			m_ui.MapComboBox->setEnabled(bMapEnabled);
174	schoenebeck	1461
175			// Instrument bank/program...
176			int iBank = (bNew ? pOptions->iMidiBank : m_pInstrument->bank());
177			int iProg = (bNew ? pOptions->iMidiProg : m_pInstrument->prog()) + 1;
178			if (bNew && iProg > 128) {
179			iProg = 1;
180			iBank++;
181			}
182	capela	1509	m_ui.BankSpinBox->setValue(iBank);
183			m_ui.ProgSpinBox->setValue(iProg);
184	schoenebeck	1461
185			// Instrument name...
186	capela	1509	m_ui.NameLineEdit->setText(m_pInstrument->name());
187	schoenebeck	1461
188			// Engine name...
189			QString sEngineName = m_pInstrument->engineName();
190			if (sEngineName.isEmpty() \|\| bNew)
191			sEngineName = pOptions->sEngineName;
192			if (sEngineName.isEmpty())
193			sEngineName = qsamplerChannel::noEngineName();
194	capela	1509	if (m_ui.EngineNameComboBox->findText(sEngineName,
195	schoenebeck	1474	Qt::MatchExactly \| Qt::MatchCaseSensitive) < 0) {
196	capela	1509	m_ui.EngineNameComboBox->addItem(sEngineName);
197	schoenebeck	1461	}
198	capela	1509	m_ui.EngineNameComboBox->setCurrentIndex(
199			m_ui.EngineNameComboBox->findText(sEngineName,
200	capela	1504	Qt::MatchExactly \| Qt::MatchCaseSensitive));
201
202	schoenebeck	1461	// Instrument filename and index...
203			QString sInstrumentFile = m_pInstrument->instrumentFile();
204			if (sInstrumentFile.isEmpty())
205			sInstrumentFile = qsamplerChannel::noInstrumentName();
206	capela	1509	m_ui.InstrumentFileComboBox->setEditText(sInstrumentFile);
207			m_ui.InstrumentNrComboBox->clear();
208			m_ui.InstrumentNrComboBox->insertItems(0,
209	schoenebeck	1461	qsamplerChannel::getInstrumentList(sInstrumentFile,
210			pOptions->bInstrumentNames));
211	capela	1509	m_ui.InstrumentNrComboBox->setCurrentIndex(m_pInstrument->instrumentNr());
212	schoenebeck	1461
213			// Instrument volume....
214			int iVolume = (bNew ? pOptions->iVolume :
215			::lroundf(100.0f * m_pInstrument->volume()));
216	capela	1509	m_ui.VolumeSpinBox->setValue(iVolume);
217	schoenebeck	1461
218			// Instrument load mode...
219			int iLoadMode = (bNew ? pOptions->iLoadMode :
220			m_pInstrument->loadMode());
221	capela	1509	m_ui.LoadModeComboBox->setCurrentIndex(iLoadMode);
222	schoenebeck	1461
223			// Done.
224			m_iDirtySetup--;
225			stabilizeForm();
226
227			// Done.
228			m_iDirtySetup--;
229			stabilizeForm();
230			}
231
232
233			// Special case for name change,
234			void InstrumentForm::nameChanged ( const QString& /* sName */ )
235			{
236			if (m_iDirtySetup > 0)
237			return;
238
239			m_iDirtyName++;
240			changed();
241			}
242
243
244			// Browse and open an instrument file.
245			void InstrumentForm::openInstrumentFile (void)
246			{
247			MainForm* pMainForm = MainForm::getInstance();
248			if (pMainForm == NULL)
249			return;
250
251			qsamplerOptions *pOptions = pMainForm->options();
252			if (pOptions == NULL)
253			return;
254
255			// FIXME: the instrument file filters should be restricted,
256			// depending on the current engine.
257	capela	1499	QString sInstrumentFile = QFileDialog::getOpenFileName(this,
258			QSAMPLER_TITLE ": " + tr("Instrument files"), // Caption.
259			pOptions->sInstrumentDir, // Start here.
260			tr("Instrument files") + " (.gig .dls)" // Filter (GIG and DLS files)
261	schoenebeck	1461	);
262
263			if (sInstrumentFile.isEmpty())
264			return;
265
266	capela	1509	m_ui.InstrumentFileComboBox->setEditText(sInstrumentFile);
267	schoenebeck	1461	updateInstrumentName();
268			}
269
270
271			// Refresh the actual instrument name.
272			void InstrumentForm::updateInstrumentName (void)
273			{
274			MainForm* pMainForm = MainForm::getInstance();
275			if (pMainForm == NULL)
276			return;
277
278			qsamplerOptions *pOptions = pMainForm->options();
279			if (pOptions == NULL)
280			return;
281
282			// TODO: this better idea would be to use libgig
283			// to retrieve the REAL instrument names.
284	capela	1509	m_ui.InstrumentNrComboBox->clear();
285			m_ui.InstrumentNrComboBox->insertItems(0,
286	schoenebeck	1461	qsamplerChannel::getInstrumentList(
287	capela	1509	m_ui.InstrumentFileComboBox->currentText(),
288	schoenebeck	1461	pOptions->bInstrumentNames)
289			);
290
291			instrumentNrChanged();
292			}
293
294
295			// Special case for instrumnet index change,
296			void InstrumentForm::instrumentNrChanged (void)
297			{
298			if (m_iDirtySetup > 0)
299			return;
300
301	capela	1509	if (m_ui.NameLineEdit->text().isEmpty() \|\| m_iDirtyName == 0) {
302			m_ui.NameLineEdit->setText(m_ui.InstrumentNrComboBox->currentText());
303	schoenebeck	1461	m_iDirtyName = 0;
304			}
305
306			changed();
307			}
308
309
310			// Accept settings (OK button slot).
311			void InstrumentForm::accept (void)
312			{
313			if (m_pInstrument == NULL)
314			return;
315
316			MainForm* pMainForm = MainForm::getInstance();
317			if (pMainForm == NULL)
318			return;
319			if (pMainForm->client() == NULL)
320			return;
321
322			qsamplerOptions *pOptions = pMainForm->options();
323			if (pOptions == NULL)
324			return;
325
326			if (m_iDirtyCount > 0) {
327	capela	1509	m_pInstrument->setMap(m_ui.MapComboBox->currentIndex());
328			m_pInstrument->setBank(m_ui.BankSpinBox->value());
329			m_pInstrument->setProg(m_ui.ProgSpinBox->value() - 1);
330			m_pInstrument->setName(m_ui.NameLineEdit->text());
331			m_pInstrument->setEngineName(m_ui.EngineNameComboBox->currentText());
332			m_pInstrument->setInstrumentFile(m_ui.InstrumentFileComboBox->currentText());
333			m_pInstrument->setInstrumentNr(m_ui.InstrumentNrComboBox->currentIndex());
334			m_pInstrument->setVolume(0.01f * float(m_ui.VolumeSpinBox->value()));
335			m_pInstrument->setLoadMode(m_ui.LoadModeComboBox->currentIndex());
336	schoenebeck	1461	}
337
338			// Save default engine name, instrument directory and history...
339	capela	1499	pOptions->sInstrumentDir = QFileInfo(
340	capela	1509	m_ui.InstrumentFileComboBox->currentText()).dir().absolutePath();
341			pOptions->sEngineName = m_ui.EngineNameComboBox->currentText();
342			pOptions->iMidiMap = m_ui.MapComboBox->currentIndex();
343			pOptions->iMidiBank = m_ui.BankSpinBox->value();
344			pOptions->iMidiProg = m_ui.ProgSpinBox->value();
345			pOptions->iVolume = m_ui.VolumeSpinBox->value();
346			pOptions->iLoadMode = m_ui.LoadModeComboBox->currentIndex();
347			pOptions->saveComboBoxHistory(m_ui.InstrumentFileComboBox);
348	schoenebeck	1461
349			// Just go with dialog acceptance.
350			QDialog::accept();
351			}
352
353
354			// Reject settings (Cancel button slot).
355			void InstrumentForm::reject (void)
356			{
357			bool bReject = true;
358
359			// Check if there's any pending changes...
360	capela	1509	if (m_iDirtyCount > 0 && m_ui.OkPushButton->isEnabled()) {
361	schoenebeck	1461	switch (QMessageBox::warning(this,
362			QSAMPLER_TITLE ": " + tr("Warning"),
363			tr("Some channel settings have been changed.\n\n"
364			"Do you want to apply the changes?"),
365			tr("Apply"), tr("Discard"), tr("Cancel"))) {
366			case 0: // Apply...
367			accept();
368			return;
369			case 1: // Discard
370			break;
371			default: // Cancel.
372			bReject = false;
373			break;
374			}
375			}
376
377			if (bReject)
378			QDialog::reject();
379			}
380
381
382			// Dirty up settings.
383			void InstrumentForm::changed (void)
384			{
385			if (m_iDirtySetup > 0)
386			return;
387
388			m_iDirtyCount++;
389			stabilizeForm();
390			}
391
392
393			// Stabilize current form state.
394			void InstrumentForm::stabilizeForm (void)
395			{
396	schoenebeck	1506	bool bValid =
397	capela	1509	!m_ui.NameLineEdit->text().isEmpty() &&
398			m_ui.EngineNameComboBox->currentIndex() >= 0 &&
399			m_ui.EngineNameComboBox->currentText() !=
400	schoenebeck	1506	qsamplerChannel::noEngineName();
401	schoenebeck	1461
402	capela	1509	const QString& sPath = m_ui.InstrumentFileComboBox->currentText();
403	schoenebeck	1461	bValid = bValid && !sPath.isEmpty() && QFileInfo(sPath).exists();
404
405	capela	1509	m_ui.OkPushButton->setEnabled(m_iDirtyCount > 0 && bValid);
406	schoenebeck	1461	}
407
408			} // namespace QSampler
409	capela	1464
410
411			// end of qsamplerInstrumentForm.cpp