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"

// 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* parent) : QDialog(parent) {
    ui.setupUi(this);

        // Initialize locals.
        m_pInstrument = NULL;

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

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

InstrumentForm::~InstrumentForm() {
}

// 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(ui.InstrumentFileComboBox);

        // Populate maps list.
        ui.MapComboBox->clear();
        ui.MapComboBox->insertStringList(qsamplerInstrument::getMapNames());

        // Populate Engines list.
        const char **ppszEngines = ::lscp_list_available_engines(pMainForm->client());
        if (ppszEngines) {
                ui.EngineNameComboBox->clear();
                for (int iEngine = 0; ppszEngines[iEngine]; iEngine++)
                        ui.EngineNameComboBox->insertItem(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())
                ui.MapComboBox->setCurrentText(sMapName);
        // It might be no maps around...
        bool bMapEnabled = (ui.MapComboBox->count() > 0);
        ui.MapTextLabel->setEnabled(bMapEnabled);
        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++;
        }
        ui.BankSpinBox->setValue(iBank);
        ui.ProgSpinBox->setValue(iProg);

        // Instrument name...
        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 (ui.EngineNameComboBox->findText(sEngineName,
                        Qt::MatchExactly | Qt::MatchCaseSensitive) == 0) {
                ui.EngineNameComboBox->insertItem(sEngineName);
        }
        ui.EngineNameComboBox->setCurrentText(sEngineName);
        // Instrument filename and index...
        QString sInstrumentFile = m_pInstrument->instrumentFile();
        if (sInstrumentFile.isEmpty())
                sInstrumentFile = qsamplerChannel::noInstrumentName();
        ui.InstrumentFileComboBox->setCurrentText(sInstrumentFile);
        ui.InstrumentNrComboBox->clear();
        ui.InstrumentNrComboBox->insertStringList(
                qsamplerChannel::getInstrumentList(sInstrumentFile,
                pOptions->bInstrumentNames));
        ui.InstrumentNrComboBox->setCurrentItem(m_pInstrument->instrumentNr());

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

        // Instrument load mode...
        int iLoadMode = (bNew ? pOptions->iLoadMode :
                m_pInstrument->loadMode());
        ui.LoadModeComboBox->setCurrentItem(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(
                pOptions->sInstrumentDir,                   // Start here.
                tr("Instrument files") + " (*.gig *.dls)",  // Filter (GIG and DLS files)
                this, 0,                                    // Parent and name (none)
                QSAMPLER_TITLE ": " + tr("Instrument files")// Caption.
        );

        if (sInstrumentFile.isEmpty())
                return;

        ui.InstrumentFileComboBox->setCurrentText(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.
        ui.InstrumentNrComboBox->clear();
        ui.InstrumentNrComboBox->insertStringList(
                qsamplerChannel::getInstrumentList(
                        ui.InstrumentFileComboBox->currentText(),
                        pOptions->bInstrumentNames)
        );

        instrumentNrChanged();
}


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

        if (ui.NameLineEdit->text().isEmpty() || m_iDirtyName == 0) {
                ui.NameLineEdit->setText(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(ui.MapComboBox->currentItem());
                m_pInstrument->setBank(ui.BankSpinBox->value());
                m_pInstrument->setProg(ui.ProgSpinBox->value() - 1);
                m_pInstrument->setName(ui.NameLineEdit->text());
                m_pInstrument->setEngineName(ui.EngineNameComboBox->currentText());
                m_pInstrument->setInstrumentFile(ui.InstrumentFileComboBox->currentText());
                m_pInstrument->setInstrumentNr(ui.InstrumentNrComboBox->currentItem());
                m_pInstrument->setVolume(0.01f * float(ui.VolumeSpinBox->value()));
                m_pInstrument->setLoadMode(ui.LoadModeComboBox->currentItem());
        }

        // Save default engine name, instrument directory and history...
        pOptions->sInstrumentDir = QFileInfo(ui.InstrumentFileComboBox->currentText()).dirPath(true);
        pOptions->sEngineName = ui.EngineNameComboBox->currentText();
        pOptions->iMidiMap  = ui.MapComboBox->currentItem();
        pOptions->iMidiBank = ui.BankSpinBox->value();
        pOptions->iMidiProg = ui.ProgSpinBox->value();
        pOptions->iVolume   = ui.VolumeSpinBox->value();
        pOptions->iLoadMode = ui.LoadModeComboBox->currentItem();
        pOptions->saveComboBoxHistory(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 && 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 = !ui.NameLineEdit->text().isEmpty();

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

        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			// Needed for lroundf()
29			#include <math.h>
30
31			namespace QSampler {
32
33			#ifndef CONFIG_ROUND
34			static inline long lroundf ( float x )
35			{
36			if (x >= 0.0f)
37			return long(x + 0.5f);
38			else
39			return long(x - 0.5f);
40			}
41			#endif
42
43			InstrumentForm::InstrumentForm(QWidget* parent) : QDialog(parent) {
44			ui.setupUi(this);
45
46			// Initialize locals.
47			m_pInstrument = NULL;
48
49			m_iDirtySetup = 0;
50			m_iDirtyCount = 0;
51			m_iDirtyName = 0;
52
53			// Try to restore normal window positioning.
54			adjustSize();
55			}
56
57			InstrumentForm::~InstrumentForm() {
58			}
59
60			// Channel dialog setup formal initializer.
61			void InstrumentForm::setup ( qsamplerInstrument *pInstrument )
62			{
63			m_pInstrument = pInstrument;
64
65			m_iDirtySetup = 0;
66			m_iDirtyCount = 0;
67			m_iDirtyName = 0;
68
69			if (m_pInstrument == NULL)
70			return;
71
72			// Check if we're up and connected.
73			MainForm* pMainForm = MainForm::getInstance();
74			if (pMainForm == NULL)
75			return;
76			if (pMainForm->client() == NULL)
77			return;
78
79			qsamplerOptions *pOptions = pMainForm->options();
80			if (pOptions == NULL)
81			return;
82
83			// It can be a brand new channel, remember?
84			bool bNew = (m_pInstrument->bank() < 0 \|\| m_pInstrument->prog() < 0);
85			if (!bNew) {
86			m_pInstrument->getInstrument();
87			m_iDirtyName++;
88			}
89
90			// Avoid nested changes.
91			m_iDirtySetup++;
92
93			// Load combo box history...
94			pOptions->loadComboBoxHistory(ui.InstrumentFileComboBox);
95
96			// Populate maps list.
97			ui.MapComboBox->clear();
98			ui.MapComboBox->insertStringList(qsamplerInstrument::getMapNames());
99
100			// Populate Engines list.
101			const char **ppszEngines = ::lscp_list_available_engines(pMainForm->client());
102			if (ppszEngines) {
103			ui.EngineNameComboBox->clear();
104			for (int iEngine = 0; ppszEngines[iEngine]; iEngine++)
105			ui.EngineNameComboBox->insertItem(ppszEngines[iEngine]);
106			}
107			else pMainForm->appendMessagesClient("lscp_list_available_engines");
108
109			// Read proper instrument information,
110			// and populate the instrument form fields.
111
112			// Instrument map name...
113			int iMap = (bNew ? pOptions->iMidiMap : m_pInstrument->map());
114			if (iMap < 0)
115			iMap = 0;
116			const QString& sMapName = qsamplerInstrument::getMapName(iMap);
117			if (!sMapName.isEmpty())
118			ui.MapComboBox->setCurrentText(sMapName);
119			// It might be no maps around...
120			bool bMapEnabled = (ui.MapComboBox->count() > 0);
121			ui.MapTextLabel->setEnabled(bMapEnabled);
122			ui.MapComboBox->setEnabled(bMapEnabled);
123
124			// Instrument bank/program...
125			int iBank = (bNew ? pOptions->iMidiBank : m_pInstrument->bank());
126			int iProg = (bNew ? pOptions->iMidiProg : m_pInstrument->prog()) + 1;
127			if (bNew && iProg > 128) {
128			iProg = 1;
129			iBank++;
130			}
131			ui.BankSpinBox->setValue(iBank);
132			ui.ProgSpinBox->setValue(iProg);
133
134			// Instrument name...
135			ui.NameLineEdit->setText(m_pInstrument->name());
136
137			// Engine name...
138			QString sEngineName = m_pInstrument->engineName();
139			if (sEngineName.isEmpty() \|\| bNew)
140			sEngineName = pOptions->sEngineName;
141			if (sEngineName.isEmpty())
142			sEngineName = qsamplerChannel::noEngineName();
143			if (ui.EngineNameComboBox->findText(sEngineName,
144			Qt::MatchExactly \| Qt::MatchCaseSensitive) == 0) {
145			ui.EngineNameComboBox->insertItem(sEngineName);
146			}
147			ui.EngineNameComboBox->setCurrentText(sEngineName);
148			// Instrument filename and index...
149			QString sInstrumentFile = m_pInstrument->instrumentFile();
150			if (sInstrumentFile.isEmpty())
151			sInstrumentFile = qsamplerChannel::noInstrumentName();
152			ui.InstrumentFileComboBox->setCurrentText(sInstrumentFile);
153			ui.InstrumentNrComboBox->clear();
154			ui.InstrumentNrComboBox->insertStringList(
155			qsamplerChannel::getInstrumentList(sInstrumentFile,
156			pOptions->bInstrumentNames));
157			ui.InstrumentNrComboBox->setCurrentItem(m_pInstrument->instrumentNr());
158
159			// Instrument volume....
160			int iVolume = (bNew ? pOptions->iVolume :
161			::lroundf(100.0f * m_pInstrument->volume()));
162			ui.VolumeSpinBox->setValue(iVolume);
163
164			// Instrument load mode...
165			int iLoadMode = (bNew ? pOptions->iLoadMode :
166			m_pInstrument->loadMode());
167			ui.LoadModeComboBox->setCurrentItem(iLoadMode);
168
169			// Done.
170			m_iDirtySetup--;
171			stabilizeForm();
172
173			// Done.
174			m_iDirtySetup--;
175			stabilizeForm();
176			}
177
178
179			// Special case for name change,
180			void InstrumentForm::nameChanged ( const QString& /* sName */ )
181			{
182			if (m_iDirtySetup > 0)
183			return;
184
185			m_iDirtyName++;
186			changed();
187			}
188
189
190			// Browse and open an instrument file.
191			void InstrumentForm::openInstrumentFile (void)
192			{
193			MainForm* pMainForm = MainForm::getInstance();
194			if (pMainForm == NULL)
195			return;
196
197			qsamplerOptions *pOptions = pMainForm->options();
198			if (pOptions == NULL)
199			return;
200
201			// FIXME: the instrument file filters should be restricted,
202			// depending on the current engine.
203			QString sInstrumentFile = QFileDialog::getOpenFileName(
204			pOptions->sInstrumentDir, // Start here.
205			tr("Instrument files") + " (.gig .dls)", // Filter (GIG and DLS files)
206			this, 0, // Parent and name (none)
207			QSAMPLER_TITLE ": " + tr("Instrument files")// Caption.
208			);
209
210			if (sInstrumentFile.isEmpty())
211			return;
212
213			ui.InstrumentFileComboBox->setCurrentText(sInstrumentFile);
214			updateInstrumentName();
215			}
216
217
218			// Refresh the actual instrument name.
219			void InstrumentForm::updateInstrumentName (void)
220			{
221			MainForm* pMainForm = MainForm::getInstance();
222			if (pMainForm == NULL)
223			return;
224
225			qsamplerOptions *pOptions = pMainForm->options();
226			if (pOptions == NULL)
227			return;
228
229			// TODO: this better idea would be to use libgig
230			// to retrieve the REAL instrument names.
231			ui.InstrumentNrComboBox->clear();
232			ui.InstrumentNrComboBox->insertStringList(
233			qsamplerChannel::getInstrumentList(
234			ui.InstrumentFileComboBox->currentText(),
235			pOptions->bInstrumentNames)
236			);
237
238			instrumentNrChanged();
239			}
240
241
242			// Special case for instrumnet index change,
243			void InstrumentForm::instrumentNrChanged (void)
244			{
245			if (m_iDirtySetup > 0)
246			return;
247
248			if (ui.NameLineEdit->text().isEmpty() \|\| m_iDirtyName == 0) {
249			ui.NameLineEdit->setText(ui.InstrumentNrComboBox->currentText());
250			m_iDirtyName = 0;
251			}
252
253			changed();
254			}
255
256
257			// Accept settings (OK button slot).
258			void InstrumentForm::accept (void)
259			{
260			if (m_pInstrument == NULL)
261			return;
262
263			MainForm* pMainForm = MainForm::getInstance();
264			if (pMainForm == NULL)
265			return;
266			if (pMainForm->client() == NULL)
267			return;
268
269			qsamplerOptions *pOptions = pMainForm->options();
270			if (pOptions == NULL)
271			return;
272
273			if (m_iDirtyCount > 0) {
274			m_pInstrument->setMap(ui.MapComboBox->currentItem());
275			m_pInstrument->setBank(ui.BankSpinBox->value());
276			m_pInstrument->setProg(ui.ProgSpinBox->value() - 1);
277			m_pInstrument->setName(ui.NameLineEdit->text());
278			m_pInstrument->setEngineName(ui.EngineNameComboBox->currentText());
279			m_pInstrument->setInstrumentFile(ui.InstrumentFileComboBox->currentText());
280			m_pInstrument->setInstrumentNr(ui.InstrumentNrComboBox->currentItem());
281			m_pInstrument->setVolume(0.01f * float(ui.VolumeSpinBox->value()));
282			m_pInstrument->setLoadMode(ui.LoadModeComboBox->currentItem());
283			}
284
285			// Save default engine name, instrument directory and history...
286			pOptions->sInstrumentDir = QFileInfo(ui.InstrumentFileComboBox->currentText()).dirPath(true);
287			pOptions->sEngineName = ui.EngineNameComboBox->currentText();
288			pOptions->iMidiMap = ui.MapComboBox->currentItem();
289			pOptions->iMidiBank = ui.BankSpinBox->value();
290			pOptions->iMidiProg = ui.ProgSpinBox->value();
291			pOptions->iVolume = ui.VolumeSpinBox->value();
292			pOptions->iLoadMode = ui.LoadModeComboBox->currentItem();
293			pOptions->saveComboBoxHistory(ui.InstrumentFileComboBox);
294
295			// Just go with dialog acceptance.
296			QDialog::accept();
297			}
298
299
300			// Reject settings (Cancel button slot).
301			void InstrumentForm::reject (void)
302			{
303			bool bReject = true;
304
305			// Check if there's any pending changes...
306			if (m_iDirtyCount > 0 && ui.OkPushButton->isEnabled()) {
307			switch (QMessageBox::warning(this,
308			QSAMPLER_TITLE ": " + tr("Warning"),
309			tr("Some channel settings have been changed.\n\n"
310			"Do you want to apply the changes?"),
311			tr("Apply"), tr("Discard"), tr("Cancel"))) {
312			case 0: // Apply...
313			accept();
314			return;
315			case 1: // Discard
316			break;
317			default: // Cancel.
318			bReject = false;
319			break;
320			}
321			}
322
323			if (bReject)
324			QDialog::reject();
325			}
326
327
328			// Dirty up settings.
329			void InstrumentForm::changed (void)
330			{
331			if (m_iDirtySetup > 0)
332			return;
333
334			m_iDirtyCount++;
335			stabilizeForm();
336			}
337
338
339			// Stabilize current form state.
340			void InstrumentForm::stabilizeForm (void)
341			{
342			bool bValid = !ui.NameLineEdit->text().isEmpty();
343
344			const QString& sPath = ui.InstrumentFileComboBox->currentText();
345			bValid = bValid && !sPath.isEmpty() && QFileInfo(sPath).exists();
346
347			ui.OkPushButton->setEnabled(m_iDirtyCount > 0 && bValid);
348			}
349
350			} // namespace QSampler
351	capela	1464
352
353			// end of qsamplerInstrumentForm.cpp