trunk/src/qsamplerChannel.cpp

// qsamplerChannel.cpp
//
/****************************************************************************
   Copyright (C) 2003-2005, 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 "qsamplerChannel.h"

#include "qsamplerMainForm.h"
#include "qsamplerChannelForm.h"

#include "config.h"

#include <qfileinfo.h>

#ifdef CONFIG_LIBGIG
#include "gig.h"
#else
#define QSAMPLER_INSTRUMENT_MAX 8
#endif


//-------------------------------------------------------------------------
// qsamplerChannel - Sampler channel structure.
//
bool qsamplerChannel::g_bInstrumentNames = false;

// Constructor.
qsamplerChannel::qsamplerChannel ( qsamplerMainForm *pMainForm, int iChannelID )
{
    m_pMainForm  = pMainForm;
    m_iChannelID = iChannelID;

//  m_sEngineName       = QObject::tr("(No engine)");
//  m_sInstrumentFile   = QObject::tr("(No instrument)");
    m_iInstrumentNr     = -1;
    m_iInstrumentStatus = -1;
    m_sMidiDriver       = "Alsa";   // DEPRECATED.
    m_iMidiDevice       = -1;
    m_iMidiPort         = -1;
    m_iMidiChannel      = -1;
    m_sAudioDriver      = "Alsa";   // DEPRECATED.
    m_iAudioDevice      = -1;
    m_fVolume           = 0.0;

}

// Default destructor.
qsamplerChannel::~qsamplerChannel (void)
{
}


// The global options settings delegated property.
qsamplerOptions *qsamplerChannel::options (void)
{
    if (m_pMainForm == NULL)
        return NULL;

    return m_pMainForm->options();
}


// The client descriptor delegated property.
lscp_client_t *qsamplerChannel::client (void)
{
    if (m_pMainForm == NULL)
        return NULL;

    return m_pMainForm->client();
}


// Create a new sampler channel, if not already.
bool qsamplerChannel::addChannel (void)
{
    if (client() == NULL)
        return false;

    // Are we a new channel?
    if (m_iChannelID < 0) {
        m_iChannelID = ::lscp_add_channel(client());
        if (m_iChannelID < 0) {
            appendMessagesClient("lscp_add_channel");
            appendMessagesError(QObject::tr("Could not create the new channel.\n\nSorry."));
        }   // Otherwise it's created...
        else appendMessages(QObject::tr("Channel %1 created.").arg(m_iChannelID));
    }

    // Return whether we're a valid channel...
    return (m_iChannelID >= 0);
}


// Remove sampler channel.
bool qsamplerChannel::removeChannel (void)
{
    if (client() == NULL)
        return false;

    // Are we an existing channel?
    if (m_iChannelID >= 0) {
        if (::lscp_remove_channel(client(), m_iChannelID) != LSCP_OK) {
            appendMessagesClient("lscp_remove_channel");
            appendMessagesError(QObject::tr("Could not remove channel.\n\nSorry."));
        } else {
            // Otherwise it's removed.
            appendMessages(QObject::tr("Channel %1 removed.").arg(m_iChannelID));
            m_iChannelID = -1;
        }
    }
    
    // Return whether we've removed the channel...
    return (m_iChannelID < 0);
}


// Channel-ID (aka Sammpler-Channel) accessors.
int qsamplerChannel::channelID (void)
{
    return m_iChannelID;
}

void qsamplerChannel::setChannelID ( int iChannelID )
{
    m_iChannelID = iChannelID;
}


// Readable channel name.
QString qsamplerChannel::channelName (void)
{
    return (m_iChannelID < 0 ? QObject::tr("New Channel") : QObject::tr("Channel %1").arg(m_iChannelID));
}


// Engine name accessors.
QString& qsamplerChannel::engineName (void)
{
    return m_sEngineName;
}

bool qsamplerChannel::loadEngine ( const QString& sEngineName )
{
    if (client() == NULL || m_iChannelID < 0)
        return false;

    if (::lscp_load_engine(client(), sEngineName.latin1(), m_iChannelID) != LSCP_OK) {
        appendMessagesClient("lscp_load_engine");
        return false;
    }

    m_sEngineName = sEngineName;
    return true;
}


// Instrument filename accessor.
QString& qsamplerChannel::instrumentFile (void)
{
    return m_sInstrumentFile;
}

// Instrument index accessor.
int qsamplerChannel::instrumentNr (void)
{
    return m_iInstrumentNr;
}

// Instrument status accessor.
int qsamplerChannel::instrumentStatus (void)
{
    return m_iInstrumentStatus;
}

// Instrument file loader.
bool qsamplerChannel::loadInstrument ( const QString& sInstrumentFile, int iInstrumentNr )
{
    if (client() == NULL || m_iChannelID < 0)
        return false;

    if (::lscp_load_instrument_non_modal(client(), sInstrumentFile.latin1(), iInstrumentNr, m_iChannelID) != LSCP_OK) {
        appendMessagesClient("lscp_load_instrument");
        return false;
    }

    m_sInstrumentFile = sInstrumentFile;
    m_iInstrumentNr = iInstrumentNr;
    m_iInstrumentStatus = 0;

    return true;
}


// MIDI driver type accessors (DEPRECATED).
QString& qsamplerChannel::midiDriver (void)
{
    return m_sMidiDriver;
}

bool qsamplerChannel::setMidiDriver ( const QString& sMidiDriver )
{
    if (client() == NULL || m_iChannelID < 0)
        return false;

    if (::lscp_set_channel_midi_type(client(), m_iChannelID, sMidiDriver.latin1()) != LSCP_OK) {
        appendMessagesClient("lscp_set_channel_midi_type");
        return false;
    }

    m_sMidiDriver = sMidiDriver;
    return true;
}


// MIDI device accessors.
int qsamplerChannel::midiDevice (void)
{
    return m_iMidiDevice;
}

bool qsamplerChannel::setMidiDevice ( int iMidiDevice )
{
    if (client() == NULL || m_iChannelID < 0)
        return false;

    if (::lscp_set_channel_midi_device(client(), m_iChannelID, iMidiDevice) != LSCP_OK) {
        appendMessagesClient("lscp_set_channel_midi_device");
        return false;
    }

    m_iMidiDevice = iMidiDevice;
    return true;
}


// MIDI port number accessor.
int qsamplerChannel::midiPort (void)
{
    return m_iMidiPort;
}

bool qsamplerChannel::setMidiPort ( int iMidiPort )
{
    if (client() == NULL || m_iChannelID < 0)
        return false;

    if (::lscp_set_channel_midi_port(client(), m_iChannelID, iMidiPort) != LSCP_OK) {
        appendMessagesClient("lscp_set_channel_midi_port");
        return false;
    }

    m_iMidiPort = iMidiPort;
    return true;
}


// MIDI channel accessor.
int qsamplerChannel::midiChannel (void)
{
    return m_iMidiChannel;
}

bool qsamplerChannel::setMidiChannel ( int iMidiChannel )
{
    if (client() == NULL || m_iChannelID < 0)
        return false;

    if (::lscp_set_channel_midi_channel(client(), m_iChannelID, iMidiChannel) != LSCP_OK) {
        appendMessagesClient("lscp_set_channel_midi_channel");
        return false;
    }

    m_iMidiChannel = iMidiChannel;
    return true;
}


// Audio device accessor.
int qsamplerChannel::audioDevice (void)
{
    return m_iAudioDevice;
}

bool qsamplerChannel::setAudioDevice ( int iAudioDevice )
{
    if (client() == NULL || m_iChannelID < 0)
        return false;

    if (::lscp_set_channel_audio_device(client(), m_iChannelID, iAudioDevice) != LSCP_OK) {
        appendMessagesClient("lscp_set_channel_audio_device");
        return false;
    }

    m_iAudioDevice = iAudioDevice;
    return true;
}


// Audio driver type accessors (DEPRECATED).
QString& qsamplerChannel::audioDriver (void)
{
    return m_sAudioDriver;
}

bool qsamplerChannel::setAudioDriver ( const QString& sAudioDriver )
{
    if (client() == NULL || m_iChannelID < 0)
        return false;

    if (::lscp_set_channel_audio_type(client(), m_iChannelID, sAudioDriver.latin1()) != LSCP_OK) {
        appendMessagesClient("lscp_set_channel_audio_type");
        return false;
    }

    m_sAudioDriver = sAudioDriver;
    return true;
}


// Channel volume accessors.
float qsamplerChannel::volume (void)
{
    return m_fVolume;
}

bool qsamplerChannel::setVolume ( float fVolume )
{
    if (client() == NULL || m_iChannelID < 0)
        return false;

    if (::lscp_set_channel_volume(client(), m_iChannelID, fVolume) != LSCP_OK) {
        appendMessagesClient("lscp_set_channel_volume");
        return false;
    }

    m_fVolume = fVolume;
    return true;
}


// Update whole channel info state.
bool qsamplerChannel::updateChannelInfo (void)
{
    if (client() == NULL || m_iChannelID < 0)
        return false;

    // Read channel information.
    lscp_channel_info_t *pChannelInfo = ::lscp_get_channel_info(client(), m_iChannelID);
    if (pChannelInfo == NULL) {
        appendMessagesClient("lscp_get_channel_info");
        appendMessagesError(QObject::tr("Could not get channel information.\n\nSorry."));
        return false;
    }

    // Cache in channel information.
    m_sEngineName       = pChannelInfo->engine_name;
    m_sInstrumentFile   = pChannelInfo->instrument_file;
    m_iInstrumentNr     = pChannelInfo->instrument_nr;
    m_iInstrumentStatus = pChannelInfo->instrument_status;
    m_iMidiDevice       = pChannelInfo->midi_device;
    m_iMidiPort         = pChannelInfo->midi_port;
    m_iMidiChannel      = pChannelInfo->midi_channel;
    m_iAudioDevice      = pChannelInfo->audio_device;
    m_fVolume           = pChannelInfo->volume;
    // Some sanity checks.
    if (m_sEngineName == "NONE")
        m_sEngineName = QString::null;
    if (m_sInstrumentFile == "NONE")
        m_sInstrumentFile = QString::null;

    return true;
}


// Reset channel method.
bool qsamplerChannel::resetChannel (void)
{
    if (client() == NULL || m_iChannelID < 0)
        return false;

    if (::lscp_reset_channel(client(), m_iChannelID) != LSCP_OK) {
        appendMessagesClient("lscp_reset_channel");
        return false;
    }

    appendMessages(QObject::tr("Channel %1 reset.").arg(m_iChannelID));
    return true;
}


// Channel setup dialog form.
bool qsamplerChannel::channelSetup ( QWidget *pParent )
{
    bool bResult = false;

    qsamplerChannelForm *pChannelForm = new qsamplerChannelForm(pParent);
    if (pChannelForm) {
        pChannelForm->setup(this);
        bResult = pChannelForm->exec();
        delete pChannelForm;
    }

    return bResult;
}


// Redirected messages output methods.
void qsamplerChannel::appendMessages( const QString& s )
{
    if (m_pMainForm) m_pMainForm->appendMessages(s);
}

void qsamplerChannel::appendMessagesColor( const QString& s, const QString& c )
{
    if (m_pMainForm) m_pMainForm->appendMessagesColor(s, c);
}

void qsamplerChannel::appendMessagesText( const QString& s )
{
    if (m_pMainForm) m_pMainForm->appendMessagesText(s);
}

void qsamplerChannel::appendMessagesError( const QString& s )
{
    if (m_pMainForm) m_pMainForm->appendMessagesError(s);
}

void qsamplerChannel::appendMessagesClient( const QString& s )
{
    if (m_pMainForm) m_pMainForm->appendMessagesClient(s);
}


// Context menu event handler.
void qsamplerChannel::contextMenuEvent( QContextMenuEvent *pEvent )
{
    if (m_pMainForm) m_pMainForm->contextMenuEvent(pEvent);
}


// Retrieve the instrument list of a instrument file (.gig).
QStringList qsamplerChannel::getInstrumentList( const QString& sInstrumentFile )
{
    QFileInfo fileinfo(sInstrumentFile);
    QString sInstrumentName = fileinfo.fileName();
    QStringList instlist;

    if (fileinfo.exists()) {
#ifdef CONFIG_LIBGIG
                if (g_bInstrumentNames) {
                RIFF::File *pRiff = new RIFF::File(sInstrumentFile);
                gig::File  *pGig  = new gig::File(pRiff);
                gig::Instrument *pInstrument = pGig->GetFirstInstrument();
                while (pInstrument) {
                    instlist.append((pInstrument->pInfo)->Name.c_str());
                    pInstrument = pGig->GetNextInstrument();
                }
                delete pGig;
                delete pRiff;
                }
                else
#else
        for (int iInstrumentNr = 0; iInstrumentNr < QSAMPLER_INSTRUMENT_MAX; iInstrumentNr++)
            instlist.append(sInstrumentName + " [" + QString::number(iInstrumentNr) + "]");
#endif
    }
    else instlist.append(sInstrumentName);

    return instlist;
}


// Retrieve the spacific instrument name of a instrument file (.gig), given its index.
QString qsamplerChannel::getInstrumentName( const QString& sInstrumentFile, int iInstrumentNr )
{
    QFileInfo fileinfo(sInstrumentFile);
    QString sInstrumentName = fileinfo.fileName();

    if (fileinfo.exists()) {
#ifdef CONFIG_LIBGIG
                if (g_bInstrumentNames) {
                RIFF::File *pRiff = new RIFF::File(sInstrumentFile);
                gig::File  *pGig  = new gig::File(pRiff);
                int iIndex = 0;
                gig::Instrument *pInstrument = pGig->GetFirstInstrument();
                while (pInstrument) {
                    if (iIndex == iInstrumentNr) {
                        sInstrumentName = (pInstrument->pInfo)->Name.c_str();
                        break;
                    }
                    iIndex++;
                    pInstrument = pGig->GetNextInstrument();
                }
                delete pGig;
                delete pRiff;
                }
                else
#else
        sInstrumentName += " [" + QString::number(iInstrumentNr) + "]";
#endif
    }

    return sInstrumentName;
}


// Instrument name(s) retrieval mode--global option.
bool qsamplerChannel::instrumentNames (void)
{
        return g_bInstrumentNames;
}

void qsamplerChannel::setInstrumentNames ( bool bInstrumentNames )
{
        g_bInstrumentNames = bInstrumentNames;
}


// end of qsamplerChannel.cpp
1	// qsamplerChannel.cpp
2	//
3	/****************************************************************************
4	Copyright (C) 2003-2005, rncbc aka Rui Nuno Capela. All rights reserved.
5
6	This program is free software; you can redistribute it and/or
7	modify it under the terms of the GNU General Public License
8	as published by the Free Software Foundation; either version 2
9	of the License, or (at your option) any later version.
10
11	This program is distributed in the hope that it will be useful,
12	but WITHOUT ANY WARRANTY; without even the implied warranty of
13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	GNU General Public License for more details.
15
16	You should have received a copy of the GNU General Public License
17	along with this program; if not, write to the Free Software
18	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19
20	*****************************************************************************/
21
22	#include "qsamplerChannel.h"
23
24	#include "qsamplerMainForm.h"
25	#include "qsamplerChannelForm.h"
26
27	#include "config.h"
28
29	#include <qfileinfo.h>
30
31	#ifdef CONFIG_LIBGIG
32	#include "gig.h"
33	#else
34	#define QSAMPLER_INSTRUMENT_MAX 8
35	#endif
36
37
38	//-------------------------------------------------------------------------
39	// qsamplerChannel - Sampler channel structure.
40	//
41	bool qsamplerChannel::g_bInstrumentNames = false;
42
43	// Constructor.
44	qsamplerChannel::qsamplerChannel ( qsamplerMainForm *pMainForm, int iChannelID )
45	{
46	m_pMainForm = pMainForm;
47	m_iChannelID = iChannelID;
48
49	// m_sEngineName = QObject::tr("(No engine)");
50	// m_sInstrumentFile = QObject::tr("(No instrument)");
51	m_iInstrumentNr = -1;
52	m_iInstrumentStatus = -1;
53	m_sMidiDriver = "Alsa"; // DEPRECATED.
54	m_iMidiDevice = -1;
55	m_iMidiPort = -1;
56	m_iMidiChannel = -1;
57	m_sAudioDriver = "Alsa"; // DEPRECATED.
58	m_iAudioDevice = -1;
59	m_fVolume = 0.0;
60
61	}
62
63	// Default destructor.
64	qsamplerChannel::~qsamplerChannel (void)
65	{
66	}
67
68
69	// The global options settings delegated property.
70	qsamplerOptions *qsamplerChannel::options (void)
71	{
72	if (m_pMainForm == NULL)
73	return NULL;
74
75	return m_pMainForm->options();
76	}
77
78
79	// The client descriptor delegated property.
80	lscp_client_t *qsamplerChannel::client (void)
81	{
82	if (m_pMainForm == NULL)
83	return NULL;
84
85	return m_pMainForm->client();
86	}
87
88
89	// Create a new sampler channel, if not already.
90	bool qsamplerChannel::addChannel (void)
91	{
92	if (client() == NULL)
93	return false;
94
95	// Are we a new channel?
96	if (m_iChannelID < 0) {
97	m_iChannelID = ::lscp_add_channel(client());
98	if (m_iChannelID < 0) {
99	appendMessagesClient("lscp_add_channel");
100	appendMessagesError(QObject::tr("Could not create the new channel.\n\nSorry."));
101	} // Otherwise it's created...
102	else appendMessages(QObject::tr("Channel %1 created.").arg(m_iChannelID));
103	}
104
105	// Return whether we're a valid channel...
106	return (m_iChannelID >= 0);
107	}
108
109
110	// Remove sampler channel.
111	bool qsamplerChannel::removeChannel (void)
112	{
113	if (client() == NULL)
114	return false;
115
116	// Are we an existing channel?
117	if (m_iChannelID >= 0) {
118	if (::lscp_remove_channel(client(), m_iChannelID) != LSCP_OK) {
119	appendMessagesClient("lscp_remove_channel");
120	appendMessagesError(QObject::tr("Could not remove channel.\n\nSorry."));
121	} else {
122	// Otherwise it's removed.
123	appendMessages(QObject::tr("Channel %1 removed.").arg(m_iChannelID));
124	m_iChannelID = -1;
125	}
126	}
127
128	// Return whether we've removed the channel...
129	return (m_iChannelID < 0);
130	}
131
132
133	// Channel-ID (aka Sammpler-Channel) accessors.
134	int qsamplerChannel::channelID (void)
135	{
136	return m_iChannelID;
137	}
138
139	void qsamplerChannel::setChannelID ( int iChannelID )
140	{
141	m_iChannelID = iChannelID;
142	}
143
144
145	// Readable channel name.
146	QString qsamplerChannel::channelName (void)
147	{
148	return (m_iChannelID < 0 ? QObject::tr("New Channel") : QObject::tr("Channel %1").arg(m_iChannelID));
149	}
150
151
152	// Engine name accessors.
153	QString& qsamplerChannel::engineName (void)
154	{
155	return m_sEngineName;
156	}
157
158	bool qsamplerChannel::loadEngine ( const QString& sEngineName )
159	{
160	if (client() == NULL \|\| m_iChannelID < 0)
161	return false;
162
163	if (::lscp_load_engine(client(), sEngineName.latin1(), m_iChannelID) != LSCP_OK) {
164	appendMessagesClient("lscp_load_engine");
165	return false;
166	}
167
168	m_sEngineName = sEngineName;
169	return true;
170	}
171
172
173	// Instrument filename accessor.
174	QString& qsamplerChannel::instrumentFile (void)
175	{
176	return m_sInstrumentFile;
177	}
178
179	// Instrument index accessor.
180	int qsamplerChannel::instrumentNr (void)
181	{
182	return m_iInstrumentNr;
183	}
184
185	// Instrument status accessor.
186	int qsamplerChannel::instrumentStatus (void)
187	{
188	return m_iInstrumentStatus;
189	}
190
191	// Instrument file loader.
192	bool qsamplerChannel::loadInstrument ( const QString& sInstrumentFile, int iInstrumentNr )
193	{
194	if (client() == NULL \|\| m_iChannelID < 0)
195	return false;
196
197	if (::lscp_load_instrument_non_modal(client(), sInstrumentFile.latin1(), iInstrumentNr, m_iChannelID) != LSCP_OK) {
198	appendMessagesClient("lscp_load_instrument");
199	return false;
200	}
201
202	m_sInstrumentFile = sInstrumentFile;
203	m_iInstrumentNr = iInstrumentNr;
204	m_iInstrumentStatus = 0;
205
206	return true;
207	}
208
209
210	// MIDI driver type accessors (DEPRECATED).
211	QString& qsamplerChannel::midiDriver (void)
212	{
213	return m_sMidiDriver;
214	}
215
216	bool qsamplerChannel::setMidiDriver ( const QString& sMidiDriver )
217	{
218	if (client() == NULL \|\| m_iChannelID < 0)
219	return false;
220
221	if (::lscp_set_channel_midi_type(client(), m_iChannelID, sMidiDriver.latin1()) != LSCP_OK) {
222	appendMessagesClient("lscp_set_channel_midi_type");
223	return false;
224	}
225
226	m_sMidiDriver = sMidiDriver;
227	return true;
228	}
229
230
231	// MIDI device accessors.
232	int qsamplerChannel::midiDevice (void)
233	{
234	return m_iMidiDevice;
235	}
236
237	bool qsamplerChannel::setMidiDevice ( int iMidiDevice )
238	{
239	if (client() == NULL \|\| m_iChannelID < 0)
240	return false;
241
242	if (::lscp_set_channel_midi_device(client(), m_iChannelID, iMidiDevice) != LSCP_OK) {
243	appendMessagesClient("lscp_set_channel_midi_device");
244	return false;
245	}
246
247	m_iMidiDevice = iMidiDevice;
248	return true;
249	}
250
251
252	// MIDI port number accessor.
253	int qsamplerChannel::midiPort (void)
254	{
255	return m_iMidiPort;
256	}
257
258	bool qsamplerChannel::setMidiPort ( int iMidiPort )
259	{
260	if (client() == NULL \|\| m_iChannelID < 0)
261	return false;
262
263	if (::lscp_set_channel_midi_port(client(), m_iChannelID, iMidiPort) != LSCP_OK) {
264	appendMessagesClient("lscp_set_channel_midi_port");
265	return false;
266	}
267
268	m_iMidiPort = iMidiPort;
269	return true;
270	}
271
272
273	// MIDI channel accessor.
274	int qsamplerChannel::midiChannel (void)
275	{
276	return m_iMidiChannel;
277	}
278
279	bool qsamplerChannel::setMidiChannel ( int iMidiChannel )
280	{
281	if (client() == NULL \|\| m_iChannelID < 0)
282	return false;
283
284	if (::lscp_set_channel_midi_channel(client(), m_iChannelID, iMidiChannel) != LSCP_OK) {
285	appendMessagesClient("lscp_set_channel_midi_channel");
286	return false;
287	}
288
289	m_iMidiChannel = iMidiChannel;
290	return true;
291	}
292
293
294	// Audio device accessor.
295	int qsamplerChannel::audioDevice (void)
296	{
297	return m_iAudioDevice;
298	}
299
300	bool qsamplerChannel::setAudioDevice ( int iAudioDevice )
301	{
302	if (client() == NULL \|\| m_iChannelID < 0)
303	return false;
304
305	if (::lscp_set_channel_audio_device(client(), m_iChannelID, iAudioDevice) != LSCP_OK) {
306	appendMessagesClient("lscp_set_channel_audio_device");
307	return false;
308	}
309
310	m_iAudioDevice = iAudioDevice;
311	return true;
312	}
313
314
315	// Audio driver type accessors (DEPRECATED).
316	QString& qsamplerChannel::audioDriver (void)
317	{
318	return m_sAudioDriver;
319	}
320
321	bool qsamplerChannel::setAudioDriver ( const QString& sAudioDriver )
322	{
323	if (client() == NULL \|\| m_iChannelID < 0)
324	return false;
325
326	if (::lscp_set_channel_audio_type(client(), m_iChannelID, sAudioDriver.latin1()) != LSCP_OK) {
327	appendMessagesClient("lscp_set_channel_audio_type");
328	return false;
329	}
330
331	m_sAudioDriver = sAudioDriver;
332	return true;
333	}
334
335
336	// Channel volume accessors.
337	float qsamplerChannel::volume (void)
338	{
339	return m_fVolume;
340	}
341
342	bool qsamplerChannel::setVolume ( float fVolume )
343	{
344	if (client() == NULL \|\| m_iChannelID < 0)
345	return false;
346
347	if (::lscp_set_channel_volume(client(), m_iChannelID, fVolume) != LSCP_OK) {
348	appendMessagesClient("lscp_set_channel_volume");
349	return false;
350	}
351
352	m_fVolume = fVolume;
353	return true;
354	}
355
356
357	// Update whole channel info state.
358	bool qsamplerChannel::updateChannelInfo (void)
359	{
360	if (client() == NULL \|\| m_iChannelID < 0)
361	return false;
362
363	// Read channel information.
364	lscp_channel_info_t *pChannelInfo = ::lscp_get_channel_info(client(), m_iChannelID);
365	if (pChannelInfo == NULL) {
366	appendMessagesClient("lscp_get_channel_info");
367	appendMessagesError(QObject::tr("Could not get channel information.\n\nSorry."));
368	return false;
369	}
370
371	// Cache in channel information.
372	m_sEngineName = pChannelInfo->engine_name;
373	m_sInstrumentFile = pChannelInfo->instrument_file;
374	m_iInstrumentNr = pChannelInfo->instrument_nr;
375	m_iInstrumentStatus = pChannelInfo->instrument_status;
376	m_iMidiDevice = pChannelInfo->midi_device;
377	m_iMidiPort = pChannelInfo->midi_port;
378	m_iMidiChannel = pChannelInfo->midi_channel;
379	m_iAudioDevice = pChannelInfo->audio_device;
380	m_fVolume = pChannelInfo->volume;
381	// Some sanity checks.
382	if (m_sEngineName == "NONE")
383	m_sEngineName = QString::null;
384	if (m_sInstrumentFile == "NONE")
385	m_sInstrumentFile = QString::null;
386
387	return true;
388	}
389
390
391	// Reset channel method.
392	bool qsamplerChannel::resetChannel (void)
393	{
394	if (client() == NULL \|\| m_iChannelID < 0)
395	return false;
396
397	if (::lscp_reset_channel(client(), m_iChannelID) != LSCP_OK) {
398	appendMessagesClient("lscp_reset_channel");
399	return false;
400	}
401
402	appendMessages(QObject::tr("Channel %1 reset.").arg(m_iChannelID));
403	return true;
404	}
405
406
407	// Channel setup dialog form.
408	bool qsamplerChannel::channelSetup ( QWidget *pParent )
409	{
410	bool bResult = false;
411
412	qsamplerChannelForm *pChannelForm = new qsamplerChannelForm(pParent);
413	if (pChannelForm) {
414	pChannelForm->setup(this);
415	bResult = pChannelForm->exec();
416	delete pChannelForm;
417	}
418
419	return bResult;
420	}
421
422
423	// Redirected messages output methods.
424	void qsamplerChannel::appendMessages( const QString& s )
425	{
426	if (m_pMainForm) m_pMainForm->appendMessages(s);
427	}
428
429	void qsamplerChannel::appendMessagesColor( const QString& s, const QString& c )
430	{
431	if (m_pMainForm) m_pMainForm->appendMessagesColor(s, c);
432	}
433
434	void qsamplerChannel::appendMessagesText( const QString& s )
435	{
436	if (m_pMainForm) m_pMainForm->appendMessagesText(s);
437	}
438
439	void qsamplerChannel::appendMessagesError( const QString& s )
440	{
441	if (m_pMainForm) m_pMainForm->appendMessagesError(s);
442	}
443
444	void qsamplerChannel::appendMessagesClient( const QString& s )
445	{
446	if (m_pMainForm) m_pMainForm->appendMessagesClient(s);
447	}
448
449
450	// Context menu event handler.
451	void qsamplerChannel::contextMenuEvent( QContextMenuEvent *pEvent )
452	{
453	if (m_pMainForm) m_pMainForm->contextMenuEvent(pEvent);
454	}
455
456
457	// Retrieve the instrument list of a instrument file (.gig).
458	QStringList qsamplerChannel::getInstrumentList( const QString& sInstrumentFile )
459	{
460	QFileInfo fileinfo(sInstrumentFile);
461	QString sInstrumentName = fileinfo.fileName();
462	QStringList instlist;
463
464	if (fileinfo.exists()) {
465	#ifdef CONFIG_LIBGIG
466	if (g_bInstrumentNames) {
467	RIFF::File *pRiff = new RIFF::File(sInstrumentFile);
468	gig::File *pGig = new gig::File(pRiff);
469	gig::Instrument *pInstrument = pGig->GetFirstInstrument();
470	while (pInstrument) {
471	instlist.append((pInstrument->pInfo)->Name.c_str());
472	pInstrument = pGig->GetNextInstrument();
473	}
474	delete pGig;
475	delete pRiff;
476	}
477	else
478	#else
479	for (int iInstrumentNr = 0; iInstrumentNr < QSAMPLER_INSTRUMENT_MAX; iInstrumentNr++)
480	instlist.append(sInstrumentName + " [" + QString::number(iInstrumentNr) + "]");
481	#endif
482	}
483	else instlist.append(sInstrumentName);
484
485	return instlist;
486	}
487
488
489	// Retrieve the spacific instrument name of a instrument file (.gig), given its index.
490	QString qsamplerChannel::getInstrumentName( const QString& sInstrumentFile, int iInstrumentNr )
491	{
492	QFileInfo fileinfo(sInstrumentFile);
493	QString sInstrumentName = fileinfo.fileName();
494
495	if (fileinfo.exists()) {
496	#ifdef CONFIG_LIBGIG
497	if (g_bInstrumentNames) {
498	RIFF::File *pRiff = new RIFF::File(sInstrumentFile);
499	gig::File *pGig = new gig::File(pRiff);
500	int iIndex = 0;
501	gig::Instrument *pInstrument = pGig->GetFirstInstrument();
502	while (pInstrument) {
503	if (iIndex == iInstrumentNr) {
504	sInstrumentName = (pInstrument->pInfo)->Name.c_str();
505	break;
506	}
507	iIndex++;
508	pInstrument = pGig->GetNextInstrument();
509	}
510	delete pGig;
511	delete pRiff;
512	}
513	else
514	#else
515	sInstrumentName += " [" + QString::number(iInstrumentNr) + "]";
516	#endif
517	}
518
519	return sInstrumentName;
520	}
521
522
523	// Instrument name(s) retrieval mode--global option.
524	bool qsamplerChannel::instrumentNames (void)
525	{
526	return g_bInstrumentNames;
527	}
528
529	void qsamplerChannel::setInstrumentNames ( bool bInstrumentNames )
530	{
531	g_bInstrumentNames = bInstrumentNames;
532	}
533
534
535	// end of qsamplerChannel.cpp