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);
    InstrumentNrComboBox->clear();
    InstrumentNrComboBox->insertStringList(qsamplerChannel::getInstrumentList(sInstrumentFile));
    InstrumentNrComboBox->setCurrentItem(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(), 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)
{
    // Finally this better idea would be to use libgig
    // to retrieve the REAL instrument names.
    InstrumentNrComboBox->clear();
    InstrumentNrComboBox->insertStringList(
        qsamplerChannel::getInstrumentList(InstrumentFileComboBox->currentText())
    );

    optionsChanged();
}


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

    m_iDirtyCount++;
    stabilizeForm();
}


// Stabilize current form state.
void qsamplerChannelForm::stabilizeForm (void)
{
    const QString& sFilename = InstrumentFileComboBox->currentText();
    OkPushButton->setEnabled(m_iDirtyCount > 0 && !sFilename.isEmpty() && QFileInfo(sFilename).exists());
}


// end of qsamplerChannelForm.ui.h

1	capela	104	// qsamplerChannelForm.ui.h
2			//
3			// ui.h extension file, included from the uic-generated form implementation.
4			/****************************************************************************
5			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	capela	295	void qsamplerChannelForm::setup ( qsamplerChannel *pChannel )
54	capela	104	{
55			m_pChannel = pChannel;
56
57			m_iDirtySetup = 0;
58			m_iDirtyCount = 0;
59
60			if (m_pChannel == NULL)
61			return;
62
63	capela	295	// It can be a brand new channel, remember?
64			bool bNew = (m_pChannel->channelID() < 0);
65			setCaption(m_pChannel->channelName());
66	capela	104
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	capela	145
90	capela	104	// 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	capela	145
108	capela	104	// Read proper channel information,
109			// and populate the channel form fields.
110
111			// Engine name...
112	capela	145	QString sEngineName = pChannel->engineName();
113	capela	176	if (sEngineName.isEmpty() && bNew)
114			sEngineName = pOptions->sEngineName;
115	capela	145	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	capela	104	// Instrument filename and index...
121	capela	145	QString sInstrumentFile = pChannel->instrumentFile();
122			if (sInstrumentFile.isEmpty())
123			sInstrumentFile = tr("(No instrument)");
124			InstrumentFileComboBox->setCurrentText(sInstrumentFile);
125	capela	299	InstrumentNrComboBox->clear();
126			InstrumentNrComboBox->insertStringList(qsamplerChannel::getInstrumentList(sInstrumentFile));
127			InstrumentNrComboBox->setCurrentItem(pChannel->instrumentNr());
128	capela	176	// MIDI input driver...
129			QString sMidiDriver = pChannel->midiDriver();
130	capela	295	if (sMidiDriver.isEmpty() \|\| bNew)
131	capela	176	sMidiDriver = pOptions->sMidiDriver;
132	capela	104	if (!sMidiDriver.isEmpty()) {
133			if (MidiDriverComboBox->listBox()->findItem(sMidiDriver, Qt::ExactMatch) == NULL)
134			MidiDriverComboBox->insertItem(sMidiDriver);
135			MidiDriverComboBox->setCurrentText(sMidiDriver);
136			}
137	capela	176	// MIDI input port...
138	capela	104	MidiPortSpinBox->setValue(pChannel->midiPort());
139	capela	176	// MIDI input channel...
140			int iMidiChannel = pChannel->midiChannel();
141	capela	295	// When new, try to suggest a sensible MIDI channel...
142			if (iMidiChannel < 0)
143			iMidiChannel = (::lscp_get_channels(m_pChannel->client()) % 16);
144	capela	255	MidiChannelComboBox->setCurrentItem(iMidiChannel);
145	capela	176	// Audio output driver...
146			QString sAudioDriver = pChannel->audioDriver();
147	capela	295	if (sAudioDriver.isEmpty() \|\| bNew)
148	capela	176	sAudioDriver = pOptions->sAudioDriver;
149	capela	104	if (!sAudioDriver.isEmpty()) {
150			if (AudioDriverComboBox->listBox()->findItem(sAudioDriver, Qt::ExactMatch) == NULL)
151			AudioDriverComboBox->insertItem(sAudioDriver);
152			AudioDriverComboBox->setCurrentText(sAudioDriver);
153			}
154			// Done.
155			m_iDirtySetup--;
156			stabilizeForm();
157			}
158
159
160			// Accept settings (OK button slot).
161			void qsamplerChannelForm::accept (void)
162			{
163			if (m_pChannel == NULL)
164			return;
165
166			qsamplerOptions *pOptions = m_pChannel->options();
167			if (pOptions == NULL)
168			return;
169
170			// We'll go for it!
171			if (m_iDirtyCount > 0) {
172			int iErrors = 0;
173	capela	295	// Are we a new channel?
174			if (!m_pChannel->addChannel())
175			iErrors++;
176	capela	115	// Audio output driver type...
177			if (!m_pChannel->setAudioDriver(AudioDriverComboBox->currentText()))
178	capela	104	iErrors++;
179			// MIDI input driver type...
180			if (!m_pChannel->setMidiDriver(MidiDriverComboBox->currentText()))
181			iErrors++;
182			// MIDI input port number...
183			if (!m_pChannel->setMidiPort(MidiPortSpinBox->value()))
184	capela	161	iErrors++;
185	capela	104	// MIDI input channel...
186	capela	255	if (!m_pChannel->setMidiChannel(MidiChannelComboBox->currentItem()))
187	capela	104	iErrors++;
188	capela	115	// Engine name...
189			if (!m_pChannel->loadEngine(EngineNameComboBox->currentText()))
190	capela	104	iErrors++;
191			// Instrument file and index...
192	capela	299	if (!m_pChannel->loadInstrument(InstrumentFileComboBox->currentText(), InstrumentNrComboBox->currentItem()))
193	capela	104	iErrors++;
194			// Show error messages?
195			if (iErrors > 0)
196			m_pChannel->appendMessagesError(tr("Some channel settings could not be set.\n\nSorry."));
197			}
198
199	capela	176	// Save default engine name, instrument directory and history...
200	capela	104	pOptions->sInstrumentDir = QFileInfo(InstrumentFileComboBox->currentText()).dirPath(true);
201	capela	176	pOptions->sEngineName = EngineNameComboBox->currentText();
202			pOptions->sAudioDriver = AudioDriverComboBox->currentText();
203			pOptions->sMidiDriver = MidiDriverComboBox->currentText();
204	capela	104	pOptions->saveComboBoxHistory(InstrumentFileComboBox);
205
206			// Just go with dialog acceptance.
207			QDialog::accept();
208			}
209
210
211			// Reject settings (Cancel button slot).
212			void qsamplerChannelForm::reject (void)
213			{
214			bool bReject = true;
215
216			// Check if there's any pending changes...
217	capela	176	if (m_iDirtyCount > 0 && OkPushButton->isEnabled()) {
218	capela	104	switch (QMessageBox::warning(this, tr("Warning"),
219			tr("Some channel settings have been changed.\n\n"
220			"Do you want to apply the changes?"),
221			tr("Apply"), tr("Discard"), tr("Cancel"))) {
222			case 0: // Apply...
223			accept();
224			return;
225			case 1: // Discard
226			break;
227			default: // Cancel.
228			bReject = false;
229			}
230			}
231
232			if (bReject)
233			QDialog::reject();
234			}
235
236
237			// Browse and open an instrument file.
238			void qsamplerChannelForm::openInstrumentFile (void)
239			{
240			qsamplerOptions *pOptions = m_pChannel->options();
241			if (pOptions == NULL)
242			return;
243
244			// FIXME: the instrument file filters should be restricted,
245			// depending on the current engine.
246			QString sInstrumentFile = QFileDialog::getOpenFileName(
247			pOptions->sInstrumentDir, // Start here.
248			tr("Instrument files") + " (.gig .dls)", // Filter (GIG and DLS files)
249			this, 0, // Parent and name (none)
250			tr("Instrument files") // Caption.
251			);
252
253			if (sInstrumentFile.isEmpty())
254			return;
255
256			InstrumentFileComboBox->setCurrentText(sInstrumentFile);
257			}
258
259
260			// Refresh the actual instrument name.
261			void qsamplerChannelForm::updateInstrumentName (void)
262			{
263	capela	299	// Finally this better idea would be to use libgig
264			// to retrieve the REAL instrument names.
265			InstrumentNrComboBox->clear();
266			InstrumentNrComboBox->insertStringList(
267			qsamplerChannel::getInstrumentList(InstrumentFileComboBox->currentText())
268			);
269	capela	104
270			optionsChanged();
271			}
272
273
274
275			// Dirty up settings.
276			void qsamplerChannelForm::optionsChanged (void)
277			{
278			if (m_iDirtySetup > 0)
279			return;
280
281			m_iDirtyCount++;
282			stabilizeForm();
283			}
284
285
286			// Stabilize current form state.
287			void qsamplerChannelForm::stabilizeForm (void)
288			{
289	capela	145	const QString& sFilename = InstrumentFileComboBox->currentText();
290	capela	104	OkPushButton->setEnabled(m_iDirtyCount > 0 && !sFilename.isEmpty() && QFileInfo(sFilename).exists());
291			}
292
293
294			// end of qsamplerChannelForm.ui.h
295