/[svn]/qsampler/trunk/src/qsamplerChannelStrip.ui.h
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Diff of /qsampler/trunk/src/qsamplerChannelStrip.ui.h

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revision 118 by capela, Tue Jun 8 18:40:06 2004 UTC revision 297 by capela, Wed Nov 17 12:40:25 2004 UTC
# Line 25  Line 25 
25  #include <qfileinfo.h>  #include <qfileinfo.h>
26  #include <qtooltip.h>  #include <qtooltip.h>
27  #include <qpopupmenu.h>  #include <qpopupmenu.h>
28    #include <qobjectlist.h>
29    
30  #include <math.h>  #include <math.h>
31    
# Line 38  Line 39 
39  void qsamplerChannelStrip::init (void)  void qsamplerChannelStrip::init (void)
40  {  {
41      // Initialize locals.      // Initialize locals.
42      m_pMainForm  = NULL;      m_pMainForm    = NULL;
43      m_iChannelID = 0;      m_pChannel     = NULL;
       
 //  m_sEngineName     = "(No engine)";  
 //  m_sInstrumentFile = "(No instrument)";  
     m_iInstrumentNr   = 0;  
     m_sMidiDriver     = "ALSA"; // DEPRECATED.  
     m_iMidiDevice     = 0;  
     m_iMidiPort       = 0;  
     m_iMidiChannel    = 0;  
     m_sAudioDriver    = "ALSA"; // DEPRECATED.  
     m_iAudioDevice    = 0;  
     m_fVolume         = 0.8;  
       
44      m_iDirtyChange = 0;      m_iDirtyChange = 0;
45    
46      // Try to restore normal window positioning.      // Try to restore normal window positioning.
# Line 62  void qsamplerChannelStrip::init (void) Line 51  void qsamplerChannelStrip::init (void)
51  // Kind of destructor.  // Kind of destructor.
52  void qsamplerChannelStrip::destroy (void)  void qsamplerChannelStrip::destroy (void)
53  {  {
54        // Destroy existing channel descriptor.
55        if (m_pChannel)
56            delete m_pChannel;
57        m_pChannel = NULL;
58  }  }
59    
60    
61  // Channel strip setup formal initializer.  // Channel strip setup formal initializer.
62  void qsamplerChannelStrip::setup ( qsamplerMainForm *pMainForm, int iChannelID )  void qsamplerChannelStrip::setup ( qsamplerMainForm *pMainForm, int iChannelID )
63  {  {
64      m_iDirtyChange = 0;      // Set main form reference.
65      m_pMainForm = pMainForm;      m_pMainForm = pMainForm;
66        
67      setChannelID(iChannelID);      // Destroy any previous channel descriptor.
68  }      if (m_pChannel)
69            delete m_pChannel;
70    
71  // The global options settings delegated property.      // Create a new one...
72  qsamplerOptions *qsamplerChannelStrip::options (void)      m_pChannel = new qsamplerChannel(pMainForm);
73  {      // And set appropriate settings.
74      if (m_pMainForm == NULL)      if (m_pChannel && iChannelID >= 0) {
75          return NULL;          m_pChannel->setChannelID(iChannelID);
76                    m_iDirtyChange = 0;
     return m_pMainForm->options();  
 }  
   
   
 // The client descriptor delegated property.  
 lscp_client_t *qsamplerChannelStrip::client (void)  
 {  
     if (m_pMainForm == NULL)  
         return NULL;  
   
     return m_pMainForm->client();  
 }  
   
   
 // Channel-ID (aka Sammpler-Channel) accessors.  
 int qsamplerChannelStrip::channelID (void)  
 {  
     return m_iChannelID;  
 }  
   
 void qsamplerChannelStrip::setChannelID ( int iChannelID )  
 {  
     m_iChannelID = iChannelID;  
   
     updateChannelInfo();  
 }  
   
   
 // Engine name accessors.  
 QString& qsamplerChannelStrip::engineName (void)  
 {  
     return m_sEngineName;  
 }  
   
 bool qsamplerChannelStrip::loadEngine ( const QString& sEngineName )  
 {  
     if (client() == NULL)  
         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 accessors.  
 QString& qsamplerChannelStrip::instrumentFile (void)  
 {  
     return m_sInstrumentFile;  
 }  
   
 // Instrument index accessors.  
 int qsamplerChannelStrip::instrumentNr (void)  
 {  
     return m_iInstrumentNr;  
 }  
   
 bool qsamplerChannelStrip::loadInstrument ( const QString& sInstrumentFile, int iInstrumentNr )  
 {  
     if (client() == NULL)  
         return false;  
   
     if (::lscp_load_instrument(client(), sInstrumentFile.latin1(), iInstrumentNr, m_iChannelID) != LSCP_OK) {  
         appendMessagesClient("lscp_load_instrument");  
         return false;  
     }  
   
     m_sInstrumentFile = sInstrumentFile;  
     m_iInstrumentNr = iInstrumentNr;  
     return true;  
 }  
   
   
 // MIDI driver type accessors (DEPRECATED).  
 QString& qsamplerChannelStrip::midiDriver (void)  
 {  
     return m_sMidiDriver;  
 }  
   
 bool qsamplerChannelStrip::setMidiDriver ( const QString& sMidiDriver )  
 {  
     if (client() == NULL)  
         return false;  
   
     if (::lscp_set_channel_midi_type(client(), m_iChannelID, sMidiDriver.latin1()) != LSCP_OK) {  
         appendMessagesClient("lscp_set_channel_midi_type");  
         return false;  
77      }      }
78        
79      m_sMidiDriver = sMidiDriver;      // Stabilize this around.
80      return true;      updateChannelInfo();
 }  
   
   
 // MIDI device accessors.  
 int qsamplerChannelStrip::midiDevice (void)  
 {  
     return m_iMidiDevice;  
 }  
   
 bool qsamplerChannelStrip::setMidiDevice ( int iMidiDevice )  
 {  
     if (client() == NULL)  
         return false;  
   
 //  FIXME: call this when LSCP becomes stable.  
 //  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 qsamplerChannelStrip::midiPort (void)  
 {  
     return m_iMidiPort;  
 }  
   
 bool qsamplerChannelStrip::setMidiPort ( int iMidiPort )  
 {  
     if (client() == NULL)  
         return false;  
   
 //  FIXME: call this when LSCP becomes stable.  
 //  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;  
81  }  }
82    
83    // Channel secriptor accessor.
84  // MIDI channel accessor.  qsamplerChannel *qsamplerChannelStrip::channel (void)
 int qsamplerChannelStrip::midiChannel (void)  
85  {  {
86      return m_iMidiChannel;      return m_pChannel;
87  }  }
88    
 bool qsamplerChannelStrip::setMidiChannel ( int iMidiChannel )  
 {  
     if (client() == NULL)  
         return false;  
   
 //  FIXME: call this when LSCP becomes stable.  
 //  if (::lscp_set_channel_midi_channel(client(), m_iChannelID, iMidiChannel) != LSCP_OK) {  
 //      appendMessagesClient("lscp_set_channel_midi_channel");  
 //      return false;  
 //  }  
89    
90      m_iMidiChannel = iMidiChannel;  // Messages view font accessors.
91      return true;  QFont qsamplerChannelStrip::displayFont (void)
 }  
   
   
 // Audio device accessor.  
 int qsamplerChannelStrip::audioDevice (void)  
92  {  {
93      return m_iAudioDevice;      return EngineNameTextLabel->font();
94  }  }
95    
96  bool qsamplerChannelStrip::setAudioDevice ( int iAudioDevice )  void qsamplerChannelStrip::setDisplayFont ( const QFont & font )
97  {  {
98      if (client() == NULL)      EngineNameTextLabel->setFont(font);
99          return false;      MidiPortChannelTextLabel->setFont(font);
100        InstrumentNameTextLabel->setFont(font);
101  //  FIXME: call this when LSCP becomes stable.      InstrumentStatusTextLabel->setFont(font);
 //  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;  
102  }  }
103    
104    
105  // Audio driver type accessors (DEPRECATED).  // Channel display background effect.
106  QString& qsamplerChannelStrip::audioDriver (void)  void qsamplerChannelStrip::setDisplayEffect ( bool bDisplayEffect )
 {  
     return m_sAudioDriver;  
 }  
   
 bool qsamplerChannelStrip::setAudioDriver ( const QString& sAudioDriver )  
107  {  {
108      if (client() == NULL)      QPixmap pm;
109          return false;      if (bDisplayEffect)
110            pm = QPixmap::fromMimeSource("displaybg1.png");
111      if (::lscp_set_channel_audio_type(client(), m_iChannelID, sAudioDriver.latin1()) != LSCP_OK) {      setDisplayBackground(pm);
         appendMessagesClient("lscp_set_channel_audio_type");  
         return false;  
     }  
   
     m_sAudioDriver = sAudioDriver;  
     return true;  
112  }  }
113    
114    
115  // Channel volume accessors.  // Update main display background pixmap.
116  float qsamplerChannelStrip::volume (void)  void qsamplerChannelStrip::setDisplayBackground ( const QPixmap& pm )
 {  
     return m_fVolume;  
 }  
   
 bool qsamplerChannelStrip::setVolume ( float fVolume )  
117  {  {
118      if (client() == NULL)      // Set the main origin...
119          return false;      ChannelInfoFrame->setPaletteBackgroundPixmap(pm);
120    
121      if (::lscp_set_channel_volume(client(), m_iChannelID, fVolume) != LSCP_OK) {      // Iterate for every child text label...
122          appendMessagesClient("lscp_set_channel_volume");      QObjectList *pList = ChannelInfoFrame->queryList("QLabel");
123          return false;      if (pList) {
124            for (QLabel *pLabel = (QLabel *) pList->first(); pLabel; pLabel = (QLabel *) pList->next())
125                pLabel->setPaletteBackgroundPixmap(pm);
126            delete pList;
127      }      }
128        
129      m_fVolume = fVolume;      // And this standalone too.
130      return true;      StreamVoiceCountTextLabel->setPaletteBackgroundPixmap(pm);
131  }  }
132    
133    
134  // Messages view font accessors.  // Channel setup dialog slot.
135  QFont qsamplerChannelStrip::displayFont (void)  bool qsamplerChannelStrip::channelSetup (void)
 {  
     return EngineNameTextLabel->font();  
 }  
   
 void qsamplerChannelStrip::setDisplayFont ( const QFont & font )  
136  {  {
137      EngineNameTextLabel->setFont(font);      bool bResult = false;
     InstrumentNameTextLabel->setFont(font);  
     MidiPortChannelTextLabel->setFont(font);  
 }  
138    
 // Channel setup dialog.  
 void qsamplerChannelStrip::channelSetup (void)  
 {  
139      qsamplerChannelForm *pChannelForm = new qsamplerChannelForm(this);      qsamplerChannelForm *pChannelForm = new qsamplerChannelForm(this);
140      if (pChannelForm) {      if (pChannelForm) {
141          pChannelForm->setup(this);          pChannelForm->setup(m_pChannel);
142          if (pChannelForm->exec()) {          bResult = pChannelForm->exec();
             updateChannelInfo();  
             emit channelChanged(this);  
         }  
143          delete pChannelForm;          delete pChannelForm;
144      }      }
145    
146        if (bResult)
147            emit channelChanged(this);
148    
149        return bResult;
150  }  }
151    
152    
153  // Update whole channel info state.  // Update whole channel info state.
154  void qsamplerChannelStrip::updateChannelInfo (void)  bool qsamplerChannelStrip::updateChannelInfo (void)
155  {  {
156        if (m_pChannel == NULL)
157            return false;
158            
159      // Update strip caption.      // Update strip caption.
160      QString sText = tr("Channel %1").arg(m_iChannelID);      QString sText = m_pChannel->channelName();
161      setCaption(sText);      setCaption(sText);
162      ChannelSetupPushButton->setText(sText);      ChannelSetupPushButton->setText(sText);
163    
164      // Check if we're up and connected.      // Check if we're up and connected.
165      if (client() == NULL)      if (m_pChannel->client() == NULL)
166          return;          return false;
167    
168      // Read channel information.      // Read actual channel information.
169      lscp_channel_info_t *pChannelInfo = ::lscp_get_channel_info(client(), m_iChannelID);      m_pChannel->updateChannelInfo();
     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_iMidiDevice     = pChannelInfo->midi_device;  
         m_iMidiPort       = pChannelInfo->midi_port;  
         m_iMidiChannel    = pChannelInfo->midi_channel;  
         m_iAudioDevice    = pChannelInfo->audio_device;  
         m_fVolume         = pChannelInfo->volume;  
     }  
170    
171      // Set some proper display values.      // Set some proper display values.
172        const QString sIndent = " ";
173    
174      // Engine name...      // Engine name...
175      if (m_sEngineName.isEmpty())      if (m_pChannel->engineName().isEmpty())
176          EngineNameTextLabel->setText(tr("(No engine)"));          EngineNameTextLabel->setText(sIndent + tr("(No engine)"));
177      else      else
178          EngineNameTextLabel->setText(m_sEngineName);          EngineNameTextLabel->setText(sIndent + m_pChannel->engineName());
179    
180      // Instrument name...      // Instrument name...
181      if (m_sInstrumentFile.isEmpty())      if (m_pChannel->instrumentFile().isEmpty())
182          InstrumentNameTextLabel->setText(tr("(No instrument)"));          InstrumentNameTextLabel->setText(sIndent + tr("(No instrument)"));
183      else      else
184          InstrumentNameTextLabel->setText(QString("%1 [%2]")          InstrumentNameTextLabel->setText(sIndent + QString("%1 [%2]")
185              .arg(QFileInfo(m_sInstrumentFile).fileName()).arg(m_iInstrumentNr));              .arg(QFileInfo(m_pChannel->instrumentFile()).fileName()).arg(m_pChannel->instrumentNr()));
186    
187        // Instrument status...
188        int iInstrumentStatus = m_pChannel->instrumentStatus();
189        if (iInstrumentStatus < 0) {
190            InstrumentStatusTextLabel->setPaletteForegroundColor(Qt::red);
191            InstrumentStatusTextLabel->setText(tr("ERR%1").arg(iInstrumentStatus));
192        } else {
193            InstrumentStatusTextLabel->setPaletteForegroundColor(iInstrumentStatus < 100 ? Qt::yellow : Qt::green);
194            InstrumentStatusTextLabel->setText(QString::number(iInstrumentStatus) + "%");
195        }
196    
197      // MIDI Port/Channel...      // MIDI Port/Channel...
198      MidiPortChannelTextLabel->setText(QString("%1 / %2")      if (m_pChannel->midiChannel() == LSCP_MIDI_CHANNEL_ALL)
199          .arg(m_iMidiPort).arg(m_iMidiChannel));          MidiPortChannelTextLabel->setText(QString("%1 / *").arg(m_pChannel->midiPort()));
200                else
201            MidiPortChannelTextLabel->setText(QString("%1 / %2").arg(m_pChannel->midiPort()).arg(m_pChannel->midiChannel() + 1));
202    
203      // And update the both GUI volume elements.      // And update the both GUI volume elements.
204      updateChannelVolume();      return updateChannelVolume();
205  }  }
206    
207    
208  // Do the dirty volume change.  // Do the dirty volume change.
209  void qsamplerChannelStrip::updateChannelVolume (void)  bool qsamplerChannelStrip::updateChannelVolume (void)
210  {  {
211        if (m_pChannel == NULL)
212            return false;
213    
214      // Convert...      // Convert...
215  #ifdef CONFIG_ROUND  #ifdef CONFIG_ROUND
216      int iVolume = (int) ::round(100.0 * m_fVolume);      int iVolume = (int) ::round(100.0 * m_pChannel->volume());
217  #else  #else
218      double fIPart = 0.0;      double fIPart = 0.0;
219      double fFPart = ::modf(100.0 * m_fVolume, &fIPart);      double fFPart = ::modf(100.0 * m_pChannel->volume(), &fIPart);
220      int iVolume = (int) fIPart;      int iVolume = (int) fIPart;
221      if (fFPart >= +0.5)      if (fFPart >= +0.5)
222          iVolume++;          iVolume++;
# Line 408  void qsamplerChannelStrip::updateChannel Line 226  void qsamplerChannelStrip::updateChannel
226  #endif  #endif
227    
228      // And clip...      // And clip...
229      if (iVolume > 100)      if (iVolume < 0)
         iVolume = 100;  
     else if (iVolume < 0)  
230          iVolume = 0;          iVolume = 0;
231    
232      // Flag it here, to avoid infinite recursion.      // Flag it here, to avoid infinite recursion.
# Line 418  void qsamplerChannelStrip::updateChannel Line 234  void qsamplerChannelStrip::updateChannel
234      VolumeSlider->setValue(iVolume);      VolumeSlider->setValue(iVolume);
235      VolumeSpinBox->setValue(iVolume);      VolumeSpinBox->setValue(iVolume);
236      m_iDirtyChange--;      m_iDirtyChange--;
237        
238        return true;
239  }  }
240    
241    
242  // Update whole channel usage state.  // Update whole channel usage state.
243  void qsamplerChannelStrip::updateChannelUsage (void)  bool qsamplerChannelStrip::updateChannelUsage (void)
244  {  {
245      if (client() == NULL)      if (m_pChannel == NULL)
246          return;          return false;
247        if (m_pChannel->client() == NULL)
248            return false;
249    
250        // Conditionally update whole channel status info.
251        if (m_pChannel->instrumentStatus() >= 0 && m_pChannel->instrumentStatus() < 100) {
252            updateChannelInfo();
253            // Once we get a complete instrument load, try a implied reset channel....
254            if (m_pChannel->instrumentStatus() == 100)
255                m_pChannel->resetChannel();
256        }
257        // Leave, if we still have an erroneus or incomplete instrument load.
258        if (m_pChannel->instrumentStatus() < 100)
259            return false;
260    
261      // Get current channel voice count.      // Get current channel voice count.
262      int iVoiceCount  = ::lscp_get_channel_voice_count(client(), m_iChannelID);      int iVoiceCount  = ::lscp_get_channel_voice_count(m_pChannel->client(), m_pChannel->channelID());
263      // Get current stream count.      // Get current stream count.
264      int iStreamCount = ::lscp_get_channel_stream_count(client(), m_iChannelID);      int iStreamCount = ::lscp_get_channel_stream_count(m_pChannel->client(), m_pChannel->channelID());
265      // Get current channel buffer fill usage.      // Get current channel buffer fill usage.
266      // As benno has suggested this is the percentage usage      // As benno has suggested this is the percentage usage
267      // of the least filled buffer stream...      // of the least filled buffer stream...
268      int iStreamUsage = 0;      int iStreamUsage = ::lscp_get_channel_stream_usage(m_pChannel->client(), m_pChannel->channelID());;
269      if (iStreamCount > 0) {  
         lscp_buffer_fill_t *pBufferFill = ::lscp_get_channel_buffer_fill(client(), LSCP_USAGE_PERCENTAGE, m_iChannelID);  
         if (pBufferFill) {  
             for (int iStream = 0; iStream < iStreamCount; iStream++) {  
                 if (iStreamUsage > (int) pBufferFill[iStream].stream_usage || iStream == 0)  
                     iStreamUsage = pBufferFill[iStream].stream_usage;  
             }  
         }  
     }      
270      // Update the GUI elements...      // Update the GUI elements...
271      StreamUsageProgressBar->setProgress(iStreamUsage);      StreamUsageProgressBar->setProgress(iStreamUsage);
272      StreamVoiceCountTextLabel->setText(QString("%1 / %2").arg(iStreamCount).arg(iVoiceCount));      StreamVoiceCountTextLabel->setText(QString("%1 / %2").arg(iStreamCount).arg(iVoiceCount));
273        
274        // We're clean.
275        return true;
276  }  }
277    
278    
279  // Volume change slot.  // Volume change slot.
280  void qsamplerChannelStrip::volumeChanged ( int iVolume )  void qsamplerChannelStrip::volumeChanged ( int iVolume )
281  {  {
282        if (m_pChannel == NULL)
283            return;
284    
285      // Avoid recursion.      // Avoid recursion.
286      if (m_iDirtyChange > 0)      if (m_iDirtyChange > 0)
287          return;          return;
288    
289      // Convert and clip.      // Convert and clip.
290      float fVolume = (float) iVolume / 100.0;      float fVolume = (float) iVolume / 100.0;
291      if (fVolume > 1.0)      if (fVolume < 0.001)
         fVolume = 1.0;  
     else if (fVolume < 0.0)  
292          fVolume = 0.0;          fVolume = 0.0;
293    
294      // Update the GUI elements.      // Update the GUI elements.
295      if (setVolume(fVolume)) {      if (m_pChannel->setVolume(fVolume)) {
296          updateChannelVolume();          updateChannelVolume();
297          emit channelChanged(this);          emit channelChanged(this);
298      }      }
299  }  }
300    
301    
302  // Redirected messages output methods.  // Context menu event handler.
303  void qsamplerChannelStrip::appendMessages( const QString& s )  void qsamplerChannelStrip::contextMenuEvent( QContextMenuEvent *pEvent )
 {  
     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 )  
304  {  {
305      m_pMainForm->appendMessagesClient(s);      if (m_pMainForm == NULL)
306            return;
307            
308        // We'll just show up the main form's edit menu.
309        m_pMainForm->contextMenuEvent(pEvent);
310  }  }
311    
312    
313  // Context menu event handler.  // Maximum volume slider accessors.
314  void qsamplerChannelStrip::contextMenuEvent( QContextMenuEvent *pEvent )  void qsamplerChannelStrip::setMaxVolume ( int iMaxVolume )
315  {  {
316      // We'll just show up the main form's edit menu.      m_iDirtyChange++;
317      m_pMainForm->stabilizeForm();      VolumeSlider->setRange(0, iMaxVolume);
318      m_pMainForm->editMenu->exec(pEvent->globalPos());      VolumeSpinBox->setRange(0, iMaxVolume);
319        m_iDirtyChange--;
320  }  }
321    
322    
323  // end of qsamplerChannelStrip.ui.h  // end of qsamplerChannelStrip.ui.h
   
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