/[svn]/qsampler/trunk/src/qsamplerChannelStrip.ui.h
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revision 176 by capela, Tue Jul 6 10:54:45 2004 UTC revision 1018 by capela, Wed Jan 10 19:39:00 2007 UTC
# Line 2  Line 2 
2  //  //
3  // ui.h extension file, included from the uic-generated form implementation.  // ui.h extension file, included from the uic-generated form implementation.
4  /****************************************************************************  /****************************************************************************
5     Copyright (C) 2004, rncbc aka Rui Nuno Capela. All rights reserved.     Copyright (C) 2004-2007, rncbc aka Rui Nuno Capela. All rights reserved.
6    
7     This program is free software; you can redistribute it and/or     This program is free software; you can redistribute it and/or
8     modify it under the terms of the GNU General Public License     modify it under the terms of the GNU General Public License
# Line 14  Line 14 
14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15     GNU General Public License for more details.     GNU General Public License for more details.
16    
17     You should have received a copy of the GNU General Public License     You should have received a copy of the GNU General Public License along
18     along with this program; if not, write to the Free Software     with this program; if not, write to the Free Software Foundation, Inc.,
19     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20    
21  *****************************************************************************/  *****************************************************************************/
22    
23  #include <qvalidator.h>  #include <qvalidator.h>
24  #include <qmessagebox.h>  #include <qmessagebox.h>
25    #include <qdragobject.h>
26  #include <qfileinfo.h>  #include <qfileinfo.h>
27  #include <qtooltip.h>  #include <qtooltip.h>
28  #include <qpopupmenu.h>  #include <qpopupmenu.h>
29    #include <qobjectlist.h>
30    #include <qurl.h>
31    
32  #include <math.h>  #include <math.h>
33    
# Line 33  Line 36 
36    
37  #include "config.h"  #include "config.h"
38    
39    // Channel status/usage usage limit control.
40    #define QSAMPLER_ERROR_LIMIT    3
41    
42    
43  // Kind of constructor.  // Kind of constructor.
44  void qsamplerChannelStrip::init (void)  void qsamplerChannelStrip::init (void)
45  {  {
46      // Initialize locals.      // Initialize locals.
47      m_pMainForm  = NULL;      m_pChannel     = NULL;
     m_iChannelID = 0;  
       
 //  m_sEngineName       = tr("(No engine)");  
 //  m_sInstrumentFile   = 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;  
       
48      m_iDirtyChange = 0;      m_iDirtyChange = 0;
49            m_iErrorCount  = 0;
50    
51      // Try to restore normal window positioning.      // Try to restore normal window positioning.
52      adjustSize();      adjustSize();
# Line 63  void qsamplerChannelStrip::init (void) Line 56  void qsamplerChannelStrip::init (void)
56  // Kind of destructor.  // Kind of destructor.
57  void qsamplerChannelStrip::destroy (void)  void qsamplerChannelStrip::destroy (void)
58  {  {
59        // Destroy existing channel descriptor.
60        if (m_pChannel)
61            delete m_pChannel;
62        m_pChannel = NULL;
63  }  }
64    
65    
66  // Channel strip setup formal initializer.  // Drag'n'drop file handler.
67  void qsamplerChannelStrip::setup ( qsamplerMainForm *pMainForm, int iChannelID )  bool qsamplerChannelStrip::decodeDragFile ( const QMimeSource *pEvent, QString& sInstrumentFile )
68  {  {
69      m_iDirtyChange = 0;          if (m_pChannel == NULL)
70      m_pMainForm = pMainForm;                  return false;
71            if (QTextDrag::canDecode(pEvent)) {
72      setChannelID(iChannelID);                  QString sText;
73                    if (QTextDrag::decode(pEvent, sText)) {
74                            QStringList files = QStringList::split('\n', sText);
75                            for (QStringList::Iterator iter = files.begin(); iter != files.end(); iter++) {
76                                    *iter = QUrl((*iter).stripWhiteSpace().replace(QRegExp("^file:"), QString::null)).path();
77                                    if (qsamplerChannel::isInstrumentFile(*iter)) {
78                                            sInstrumentFile = *iter;
79                                            return true;
80                                    }
81                            }
82                    }
83            }
84            // Fail.
85            return false;
86  }  }
87    
88    
89  // The global options settings delegated property.  // Window drag-n-drop event handlers.
90  qsamplerOptions *qsamplerChannelStrip::options (void)  void qsamplerChannelStrip::dragEnterEvent ( QDragEnterEvent* pDragEnterEvent )
91  {  {
92      if (m_pMainForm == NULL)          QString sInstrumentFile;
93          return NULL;          pDragEnterEvent->accept(decodeDragFile(pDragEnterEvent, sInstrumentFile));
           
     return m_pMainForm->options();  
94  }  }
95    
96    
97  // The client descriptor delegated property.  void qsamplerChannelStrip::dropEvent ( QDropEvent* pDropEvent )
 lscp_client_t *qsamplerChannelStrip::client (void)  
98  {  {
99      if (m_pMainForm == NULL)          QString sInstrumentFile;
         return NULL;  
100    
101      return m_pMainForm->client();          if (decodeDragFile(pDropEvent, sInstrumentFile)) {
102                    // Go and set the dropped instrument filename...
103                    m_pChannel->setInstrument(sInstrumentFile, 0);
104                    // Open up the channel dialog.
105                    channelSetup();
106            }
107  }  }
108    
109    
110  // Channel-ID (aka Sammpler-Channel) accessors.  // Channel strip setup formal initializer.
111  int qsamplerChannelStrip::channelID (void)  void qsamplerChannelStrip::setup ( qsamplerChannel *pChannel )
112  {  {
113      return m_iChannelID;      // Destroy any previous channel descriptor;
114  }      // (remember that once setup we own it!)
115        if (m_pChannel)
116            delete m_pChannel;
117    
118  void qsamplerChannelStrip::setChannelID ( int iChannelID )      // Set the new one...
119  {      m_pChannel = pChannel;
     m_iChannelID = iChannelID;  
120    
121        // Stabilize this around.
122      updateChannelInfo();      updateChannelInfo();
 }  
   
123    
124  // Engine name accessors.          // We'll accept drops from now on...
125  QString& qsamplerChannelStrip::engineName (void)          if (m_pChannel)
126  {                  setAcceptDrops(true);
     return m_sEngineName;  
127  }  }
128    
129  bool qsamplerChannelStrip::loadEngine ( const QString& sEngineName )  // Channel secriptor accessor.
130    qsamplerChannel *qsamplerChannelStrip::channel (void)
131  {  {
132      if (client() == NULL)      return m_pChannel;
         return false;  
   
     if (::lscp_load_engine(client(), sEngineName.latin1(), m_iChannelID) != LSCP_OK) {  
         appendMessagesClient("lscp_load_engine");  
         return false;  
     }  
   
     m_sEngineName = sEngineName;  
     return true;  
133  }  }
134    
135    
136  // Instrument filename accessor.  // Messages view font accessors.
137  QString& qsamplerChannelStrip::instrumentFile (void)  QFont qsamplerChannelStrip::displayFont (void)
138  {  {
139      return m_sInstrumentFile;      return EngineNameTextLabel->font();
140  }  }
141    
142  // Instrument index accessor.  void qsamplerChannelStrip::setDisplayFont ( const QFont & font )
 int qsamplerChannelStrip::instrumentNr (void)  
143  {  {
144      return m_iInstrumentNr;      EngineNameTextLabel->setFont(font);
145        MidiPortChannelTextLabel->setFont(font);
146        InstrumentNameTextLabel->setFont(font);
147        InstrumentStatusTextLabel->setFont(font);
148  }  }
149    
 // Instrument status accessor.  
 int qsamplerChannelStrip::instrumentStatus (void)  
 {  
     return m_iInstrumentStatus;  
 }  
150    
151  // Instrument file loader.  // Channel display background effect.
152  bool qsamplerChannelStrip::loadInstrument ( const QString& sInstrumentFile, int iInstrumentNr )  void qsamplerChannelStrip::setDisplayEffect ( bool bDisplayEffect )
153  {  {
154      if (client() == NULL)      QPixmap pm;
155          return false;      if (bDisplayEffect)
156            pm = QPixmap::fromMimeSource("displaybg1.png");
157      if (::lscp_load_instrument_non_modal(client(), sInstrumentFile.latin1(), iInstrumentNr, m_iChannelID) != LSCP_OK) {      setDisplayBackground(pm);
         appendMessagesClient("lscp_load_instrument");  
         return false;  
     }  
   
     m_sInstrumentFile = sInstrumentFile;  
     m_iInstrumentNr = iInstrumentNr;  
     m_iInstrumentStatus = 0;  
       
     return true;  
158  }  }
159    
160    
161  // MIDI driver type accessors (DEPRECATED).  // Update main display background pixmap.
162  QString& qsamplerChannelStrip::midiDriver (void)  void qsamplerChannelStrip::setDisplayBackground ( const QPixmap& pm )
 {  
     return m_sMidiDriver;  
 }  
   
 bool qsamplerChannelStrip::setMidiDriver ( const QString& sMidiDriver )  
163  {  {
164      if (client() == NULL)      // Set the main origin...
165          return false;      ChannelInfoFrame->setPaletteBackgroundPixmap(pm);
166    
167      if (::lscp_set_channel_midi_type(client(), m_iChannelID, sMidiDriver.latin1()) != LSCP_OK) {      // Iterate for every child text label...
168          appendMessagesClient("lscp_set_channel_midi_type");      QObjectList *pList = ChannelInfoFrame->queryList("QLabel");
169          return false;      if (pList) {
170            for (QLabel *pLabel = (QLabel *) pList->first(); pLabel; pLabel = (QLabel *) pList->next())
171                pLabel->setPaletteBackgroundPixmap(pm);
172            delete pList;
173      }      }
174    
175      m_sMidiDriver = sMidiDriver;      // And this standalone too.
176      return true;      StreamVoiceCountTextLabel->setPaletteBackgroundPixmap(pm);
177  }  }
178    
179    
180  // MIDI device accessors.  // Maximum volume slider accessors.
181  int qsamplerChannelStrip::midiDevice (void)  void qsamplerChannelStrip::setMaxVolume ( int iMaxVolume )
182  {  {
183      return m_iMidiDevice;      m_iDirtyChange++;
184        VolumeSlider->setRange(0, iMaxVolume);
185        VolumeSpinBox->setRange(0, iMaxVolume);
186        m_iDirtyChange--;
187  }  }
188    
 bool qsamplerChannelStrip::setMidiDevice ( int iMidiDevice )  
 {  
     if (client() == NULL)  
         return false;  
189    
190      if (::lscp_set_channel_midi_device(client(), m_iChannelID, iMidiDevice) != LSCP_OK) {  // Channel setup dialog slot.
191          appendMessagesClient("lscp_set_channel_midi_device");  bool qsamplerChannelStrip::channelSetup (void)
192          return false;  {
193      }          if (m_pChannel == NULL)
194                    return false;
195                    
196            // Invoke the channel setup dialog.
197            bool bResult = m_pChannel->channelSetup(this);
198            // Notify that this channel has changed.
199            if (bResult)
200                    emit channelChanged(this);
201    
202      m_iMidiDevice = iMidiDevice;          return bResult;
     return true;  
203  }  }
204    
205    
206  // MIDI port number accessor.  // Channel mute slot.
207  int qsamplerChannelStrip::midiPort (void)  bool qsamplerChannelStrip::channelMute ( bool bMute )
 {  
     return m_iMidiPort;  
 }  
   
 bool qsamplerChannelStrip::setMidiPort ( int iMidiPort )  
208  {  {
209      if (client() == NULL)          if (m_pChannel == NULL)
210          return false;                  return false;
211    
212      if (::lscp_set_channel_midi_port(client(), m_iChannelID, iMidiPort) != LSCP_OK) {          // Invoke the channel mute method.
213          appendMessagesClient("lscp_set_channel_midi_port");          bool bResult = m_pChannel->setChannelMute(bMute);
214          return false;          // Notify that this channel has changed.
215      }          if (bResult)
216                    emit channelChanged(this);
217    
218      m_iMidiPort = iMidiPort;          return bResult;
     return true;  
219  }  }
220    
221    
222  // MIDI channel accessor.  // Channel solo slot.
223  int qsamplerChannelStrip::midiChannel (void)  bool qsamplerChannelStrip::channelSolo ( bool bSolo )
 {  
     return m_iMidiChannel;  
 }  
   
 bool qsamplerChannelStrip::setMidiChannel ( int iMidiChannel )  
224  {  {
225      if (client() == NULL)          if (m_pChannel == NULL)
226          return false;                  return false;
227    
228      if (::lscp_set_channel_midi_channel(client(), m_iChannelID, iMidiChannel) != LSCP_OK) {          // Invoke the channel solo method.
229          appendMessagesClient("lscp_set_channel_midi_channel");          bool bResult = m_pChannel->setChannelSolo(bSolo);
230          return false;          // Notify that this channel has changed.
231      }          if (bResult)
232                    emit channelChanged(this);
233    
234      m_iMidiChannel = iMidiChannel;          return bResult;
     return true;  
235  }  }
236    
237    
238  // Audio device accessor.  // Channel reset slot.
239  int qsamplerChannelStrip::audioDevice (void)  bool qsamplerChannelStrip::channelReset (void)
 {  
     return m_iAudioDevice;  
 }  
   
 bool qsamplerChannelStrip::setAudioDevice ( int iAudioDevice )  
240  {  {
241      if (client() == NULL)          if (m_pChannel == NULL)
242          return false;                  return false;
243    
244      if (::lscp_set_channel_audio_device(client(), m_iChannelID, iAudioDevice) != LSCP_OK) {          // Invoke the channel reset method.
245          appendMessagesClient("lscp_set_channel_audio_device");          bool bResult = m_pChannel->channelReset();
246          return false;          // Notify that this channel has changed.
247      }          if (bResult)
248                    emit channelChanged(this);
249    
250      m_iAudioDevice = iAudioDevice;          return bResult;
     return true;  
251  }  }
252    
253    
254  // Audio driver type accessors (DEPRECATED).  // Update the channel instrument name.
255  QString& qsamplerChannelStrip::audioDriver (void)  bool qsamplerChannelStrip::updateInstrumentName ( bool bForce )
256  {  {
257      return m_sAudioDriver;          if (m_pChannel == NULL)
258  }                  return false;
259    
260  bool qsamplerChannelStrip::setAudioDriver ( const QString& sAudioDriver )          // Do we refresh the actual name?
261  {          if (bForce)
262      if (client() == NULL)                  m_pChannel->updateInstrumentName();
         return false;  
263    
264      if (::lscp_set_channel_audio_type(client(), m_iChannelID, sAudioDriver.latin1()) != LSCP_OK) {          // Instrument name...
265          appendMessagesClient("lscp_set_channel_audio_type");          if (m_pChannel->instrumentName().isEmpty()) {
266          return false;                  if (m_pChannel->instrumentStatus() >= 0)
267      }                          InstrumentNameTextLabel->setText(' ' + qsamplerChannel::loadingInstrument());
268                    else
269                            InstrumentNameTextLabel->setText(' ' + qsamplerChannel::noInstrumentName());
270            } else
271                    InstrumentNameTextLabel->setText(' ' + m_pChannel->instrumentName());
272    
273      m_sAudioDriver = sAudioDriver;          return true;    
     return true;  
274  }  }
275    
276    
277  // Channel volume accessors.  // Do the dirty volume change.
278  float qsamplerChannelStrip::volume (void)  bool qsamplerChannelStrip::updateChannelVolume (void)
 {  
     return m_fVolume;  
 }  
   
 bool qsamplerChannelStrip::setVolume ( float fVolume )  
279  {  {
280      if (client() == NULL)      if (m_pChannel == NULL)
281          return false;          return false;
282    
283      if (::lscp_set_channel_volume(client(), m_iChannelID, fVolume) != LSCP_OK) {      // Convert...
284          appendMessagesClient("lscp_set_channel_volume");  #ifdef CONFIG_ROUND
285          return false;      int iVolume = (int) ::round(100.0 * m_pChannel->volume());
286      }  #else
287        double fIPart = 0.0;
288        double fFPart = ::modf(100.0 * m_pChannel->volume(), &fIPart);
289        int iVolume = (int) fIPart;
290        if (fFPart >= +0.5)
291            iVolume++;
292        else
293        if (fFPart <= -0.5)
294            iVolume--;
295    #endif
296    
297      m_fVolume = fVolume;      // And clip...
298      return true;      if (iVolume < 0)
299  }          iVolume = 0;
300    
301        // Flag it here, to avoid infinite recursion.
302        m_iDirtyChange++;
303        VolumeSlider->setValue(iVolume);
304        VolumeSpinBox->setValue(iVolume);
305        m_iDirtyChange--;
306    
307  // Messages view font accessors.      return true;
 QFont qsamplerChannelStrip::displayFont (void)  
 {  
     return EngineNameTextLabel->font();  
308  }  }
309    
 void qsamplerChannelStrip::setDisplayFont ( const QFont & font )  
 {  
     EngineNameTextLabel->setFont(font);  
     MidiPortChannelTextLabel->setFont(font);  
     InstrumentNameTextLabel->setFont(font);  
     InstrumentStatusTextLabel->setFont(font);  
 }  
310    
311  // Channel setup dialog.  // Update whole channel info state.
312  void qsamplerChannelStrip::channelSetup ( bool bNew )  bool qsamplerChannelStrip::updateChannelInfo (void)
313  {  {
314      qsamplerChannelForm *pChannelForm = new qsamplerChannelForm(this);      if (m_pChannel == NULL)
315      if (pChannelForm) {          return false;
         pChannelForm->setup(this, bNew);  
         if (pChannelForm->exec()) {  
             updateChannelInfo();  
             emit channelChanged(this);  
         }  
         delete pChannelForm;  
     }  
 }  
316    
317            // Check for error limit/recycle...
318            if (m_iErrorCount > QSAMPLER_ERROR_LIMIT)
319                    return true;
320    
 // Update whole channel info state.  
 void qsamplerChannelStrip::updateChannelInfo (void)  
 {  
321      // Update strip caption.      // Update strip caption.
322      QString sText = tr("Channel %1").arg(m_iChannelID);      QString sText = m_pChannel->channelName();
323      setCaption(sText);      setCaption(sText);
324      ChannelSetupPushButton->setText(sText);      ChannelSetupPushButton->setText(sText);
325    
326      // Check if we're up and connected.      // Check if we're up and connected.
327      if (client() == NULL)          qsamplerMainForm *pMainForm = qsamplerMainForm::getInstance();
328          return;          if (pMainForm->client() == NULL)
329                    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(tr("Could not get channel information.\n\nSorry."));  
     } else {  
         // 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;  
     }  
330    
331      // Set some proper display values.      // Read actual channel information.
332        m_pChannel->updateChannelInfo();
333    
334      // Engine name...      // Engine name...
335      if (m_sEngineName.isEmpty())      if (m_pChannel->engineName().isEmpty())
336          EngineNameTextLabel->setText(tr("(No engine)"));          EngineNameTextLabel->setText(' ' + qsamplerChannel::noEngineName());
337      else      else
338          EngineNameTextLabel->setText(m_sEngineName);          EngineNameTextLabel->setText(' ' + m_pChannel->engineName());
339    
340      // Instrument name...          // Instrument name...
341      if (m_sInstrumentFile.isEmpty())          updateInstrumentName(false);
342          InstrumentNameTextLabel->setText(tr("(No instrument)"));  
343      else      // MIDI Port/Channel...
344          InstrumentNameTextLabel->setText(QString("%1 [%2]")          QString sMidiPortChannel = QString::number(m_pChannel->midiPort()) + " / ";
345              .arg(QFileInfo(m_sInstrumentFile).fileName()).arg(m_iInstrumentNr));          if (m_pChannel->midiChannel() == LSCP_MIDI_CHANNEL_ALL)
346                    sMidiPortChannel += tr("All");
347            else
348                    sMidiPortChannel += QString::number(m_pChannel->midiChannel() + 1);
349            MidiPortChannelTextLabel->setText(sMidiPortChannel);
350    
351      // Instrument status...      // Instrument status...
352      if (m_iInstrumentStatus < 0) {      int iInstrumentStatus = m_pChannel->instrumentStatus();
353        if (iInstrumentStatus < 0) {
354          InstrumentStatusTextLabel->setPaletteForegroundColor(Qt::red);          InstrumentStatusTextLabel->setPaletteForegroundColor(Qt::red);
355          InstrumentStatusTextLabel->setText(tr("ERR%1").arg(m_iInstrumentStatus));          InstrumentStatusTextLabel->setText(tr("ERR%1").arg(iInstrumentStatus));
356      } else {          m_iErrorCount++;
357          InstrumentStatusTextLabel->setPaletteForegroundColor(m_iInstrumentStatus < 100 ? Qt::yellow : Qt::green);          return false;
         InstrumentStatusTextLabel->setText(QString::number(m_iInstrumentStatus) + "%");  
358      }      }
359        // All seems normal...
360      // MIDI Port/Channel...      InstrumentStatusTextLabel->setPaletteForegroundColor(iInstrumentStatus < 100 ? Qt::yellow : Qt::green);
361      MidiPortChannelTextLabel->setText(QString("%1 / %2")      InstrumentStatusTextLabel->setText(QString::number(iInstrumentStatus) + '%');
362          .arg(m_iMidiPort).arg(m_iMidiChannel));      m_iErrorCount = 0;
363            
364      // And update the both GUI volume elements.  #ifdef CONFIG_MUTE_SOLO
365      updateChannelVolume();      // Mute/Solo button state coloring...
366  }      const QColor& rgbNormal = ChannelSetupPushButton->paletteBackgroundColor();
367        bool bMute = m_pChannel->channelMute();
368        ChannelMutePushButton->setPaletteBackgroundColor(bMute ? Qt::red : rgbNormal);
369  // Do the dirty volume change.      ChannelMutePushButton->setDown(bMute);
370  void qsamplerChannelStrip::updateChannelVolume (void)      bool bSolo = m_pChannel->channelSolo();
371  {      ChannelSoloPushButton->setPaletteBackgroundColor(bSolo ? Qt::yellow : rgbNormal);
372      // Convert...      ChannelSoloPushButton->setDown(bSolo);
 #ifdef CONFIG_ROUND  
     int iVolume = (int) ::round(100.0 * m_fVolume);  
373  #else  #else
374      double fIPart = 0.0;          ChannelMutePushButton->setEnabled(false);
375      double fFPart = ::modf(100.0 * m_fVolume, &fIPart);          ChannelSoloPushButton->setEnabled(false);
     int iVolume = (int) fIPart;  
     if (fFPart >= +0.5)  
         iVolume++;  
     else  
     if (fFPart <= -0.5)  
         iVolume--;  
376  #endif  #endif
377    
378      // And clip...      // And update the both GUI volume elements;
379      if (iVolume < 0)      // return success if, and only if, intrument is fully loaded...
380          iVolume = 0;      return updateChannelVolume() && (iInstrumentStatus == 100);
   
     // Flag it here, to avoid infinite recursion.  
     m_iDirtyChange++;  
     VolumeSlider->setValue(iVolume);  
     VolumeSpinBox->setValue(iVolume);  
     m_iDirtyChange--;  
381  }  }
382    
383    
384  // Update whole channel usage state.  // Update whole channel usage state.
385  void qsamplerChannelStrip::updateChannelUsage (void)  bool qsamplerChannelStrip::updateChannelUsage (void)
386  {  {
387      if (client() == NULL)      if (m_pChannel == NULL)
388          return;          return false;
389    
390      // Conditionally update whole channel status info.          qsamplerMainForm *pMainForm = qsamplerMainForm::getInstance();
391      if (m_iInstrumentStatus >= 0 && m_iInstrumentStatus < 100) {          if (pMainForm->client() == NULL)
392          updateChannelInfo();                  return false;
393          // Once we get a complete instrument load, try a implied reset channel....  
394          if (m_iInstrumentStatus == 100) {          // This only makes sense on fully loaded channels...
395              if (::lscp_reset_channel(client(), m_iChannelID) != LSCP_OK)          if (m_pChannel->instrumentStatus() < 100)
396                  appendMessagesClient("lscp_reset_channel");              return false;
         }  
     }  
     // Leave, if we still have an erroneus or incomplete instrument load.  
     if (m_iInstrumentStatus < 100)  
         return;  
397    
398      // Get current channel voice count.      // Get current channel voice count.
399      int iVoiceCount  = ::lscp_get_channel_voice_count(client(), m_iChannelID);      int iVoiceCount  = ::lscp_get_channel_voice_count(pMainForm->client(), m_pChannel->channelID());
400      // Get current stream count.      // Get current stream count.
401      int iStreamCount = ::lscp_get_channel_stream_count(client(), m_iChannelID);      int iStreamCount = ::lscp_get_channel_stream_count(pMainForm->client(), m_pChannel->channelID());
402      // Get current channel buffer fill usage.      // Get current channel buffer fill usage.
403      // As benno has suggested this is the percentage usage      // As benno has suggested this is the percentage usage
404      // of the least filled buffer stream...      // of the least filled buffer stream...
405      int iStreamUsage = ::lscp_get_channel_stream_usage(client(), m_iChannelID);;      int iStreamUsage = ::lscp_get_channel_stream_usage(pMainForm->client(), m_pChannel->channelID());;
406    
407      // Update the GUI elements...      // Update the GUI elements...
408      StreamUsageProgressBar->setProgress(iStreamUsage);      StreamUsageProgressBar->setProgress(iStreamUsage);
409      StreamVoiceCountTextLabel->setText(QString("%1 / %2").arg(iStreamCount).arg(iVoiceCount));      StreamVoiceCountTextLabel->setText(QString("%1 / %2").arg(iStreamCount).arg(iVoiceCount));
410    
411        // We're clean.
412        return true;
413  }  }
414    
415    
416  // Volume change slot.  // Volume change slot.
417  void qsamplerChannelStrip::volumeChanged ( int iVolume )  void qsamplerChannelStrip::volumeChanged ( int iVolume )
418  {  {
419        if (m_pChannel == NULL)
420            return;
421    
422      // Avoid recursion.      // Avoid recursion.
423      if (m_iDirtyChange > 0)      if (m_iDirtyChange > 0)
424          return;          return;
# Line 488  void qsamplerChannelStrip::volumeChanged Line 429  void qsamplerChannelStrip::volumeChanged
429          fVolume = 0.0;          fVolume = 0.0;
430    
431      // Update the GUI elements.      // Update the GUI elements.
432      if (setVolume(fVolume)) {      if (m_pChannel->setVolume(fVolume)) {
433          updateChannelVolume();          updateChannelVolume();
434          emit channelChanged(this);          emit channelChanged(this);
435      }      }
436  }  }
437    
438    
 // Redirected messages output methods.  
 void qsamplerChannelStrip::appendMessages( const QString& s )  
 {  
     m_pMainForm->appendMessages(s);  
 }  
   
 void qsamplerChannelStrip::appendMessagesColor( const QString& s, const QString& c )  
 {  
     m_pMainForm->appendMessagesColor(s, c);  
 }  
   
 void qsamplerChannelStrip::appendMessagesText( const QString& s )  
 {  
     m_pMainForm->appendMessagesText(s);  
 }  
   
 void qsamplerChannelStrip::appendMessagesError( const QString& s )  
 {  
     m_pMainForm->appendMessagesError(s);  
 }  
   
 void qsamplerChannelStrip::appendMessagesClient( const QString& s )  
 {  
     m_pMainForm->appendMessagesClient(s);  
 }  
   
   
439  // Context menu event handler.  // Context menu event handler.
440  void qsamplerChannelStrip::contextMenuEvent( QContextMenuEvent *pEvent )  void qsamplerChannelStrip::contextMenuEvent( QContextMenuEvent *pEvent )
441  {  {
442      // We'll just show up the main form's edit menu.      if (m_pChannel == NULL)
443      m_pMainForm->contextMenuEvent(pEvent);          return;
444    
445        // We'll just show up the main form's edit menu (thru qsamplerChannel).
446        m_pChannel->contextMenuEvent(pEvent);
447  }  }
448    
449    
450  // Maximum volume slider accessors.  // Error count hackish accessors.
451  void qsamplerChannelStrip::setMaxVolume ( int iMaxVolume )  void qsamplerChannelStrip::resetErrorCount (void)
452  {  {
453      m_iDirtyChange++;          m_iErrorCount = 0;
     VolumeSlider->setRange(0, iMaxVolume);  
     VolumeSpinBox->setRange(0, iMaxVolume);  
     m_iDirtyChange--;  
454  }  }
455    
456    
457  // end of qsamplerChannelStrip.ui.h  // end of qsamplerChannelStrip.ui.h
   
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