/[svn]/qsampler/tags/qsampler_0_1_1/src/qsamplerChannelStrip.ui.h
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qsampler/trunk/src/qsamplerChannelStrip.ui.h revision 344 by capela, Tue Jan 18 13:53:04 2005 UTC qsampler/tags/qsampler_0_1_1/src/qsamplerChannelStrip.ui.h revision 640, Sun Jun 12 20:57:50 2005 UTC
# Line 22  Line 22 
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>  #include <qobjectlist.h>
30    #include <qurl.h>
31    
32  #include <math.h>  #include <math.h>
33    
# Line 34  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)
# Line 41  void qsamplerChannelStrip::init (void) Line 46  void qsamplerChannelStrip::init (void)
46      // Initialize locals.      // Initialize locals.
47      m_pChannel     = NULL;      m_pChannel     = NULL;
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 57  void qsamplerChannelStrip::destroy (void Line 63  void qsamplerChannelStrip::destroy (void
63  }  }
64    
65    
66    // Drag'n'drop file handler.
67    bool qsamplerChannelStrip::decodeDragFile ( const QMimeSource *pEvent, QString& sInstrumentFile )
68    {
69            if (m_pChannel == NULL)
70                    return false;
71            if (QTextDrag::canDecode(pEvent)) {
72                    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    // Window drag-n-drop event handlers.
90    void qsamplerChannelStrip::dragEnterEvent ( QDragEnterEvent* pDragEnterEvent )
91    {
92            QString sInstrumentFile;
93            pDragEnterEvent->accept(decodeDragFile(pDragEnterEvent, sInstrumentFile));
94    }
95    
96    
97    void qsamplerChannelStrip::dropEvent ( QDropEvent* pDropEvent )
98    {
99            QString sInstrumentFile;
100    
101            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 strip setup formal initializer.  // Channel strip setup formal initializer.
111  void qsamplerChannelStrip::setup ( qsamplerChannel *pChannel )  void qsamplerChannelStrip::setup ( qsamplerChannel *pChannel )
112  {  {
# Line 70  void qsamplerChannelStrip::setup ( qsamp Line 120  void qsamplerChannelStrip::setup ( qsamp
120    
121      // Stabilize this around.      // Stabilize this around.
122      updateChannelInfo();      updateChannelInfo();
123    
124            // We'll accept drops from now on...
125            if (m_pChannel)
126                    setAcceptDrops(true);
127  }  }
128    
129  // Channel secriptor accessor.  // Channel secriptor accessor.
# Line 117  void qsamplerChannelStrip::setDisplayBac Line 171  void qsamplerChannelStrip::setDisplayBac
171              pLabel->setPaletteBackgroundPixmap(pm);              pLabel->setPaletteBackgroundPixmap(pm);
172          delete pList;          delete pList;
173      }      }
174        
175      // And this standalone too.      // And this standalone too.
176      StreamVoiceCountTextLabel->setPaletteBackgroundPixmap(pm);      StreamVoiceCountTextLabel->setPaletteBackgroundPixmap(pm);
177  }  }
178    
179    
180    // Maximum volume slider accessors.
181    void qsamplerChannelStrip::setMaxVolume ( int iMaxVolume )
182    {
183        m_iDirtyChange++;
184        VolumeSlider->setRange(0, iMaxVolume);
185        VolumeSpinBox->setRange(0, iMaxVolume);
186        m_iDirtyChange--;
187    }
188    
189    
190  // Channel setup dialog slot.  // Channel setup dialog slot.
191  bool qsamplerChannelStrip::channelSetup (void)  bool qsamplerChannelStrip::channelSetup (void)
192  {  {
193      bool bResult = m_pChannel->channelSetup(this);          if (m_pChannel == NULL)
194                    return false;
195      if (bResult)                  
196          emit channelChanged(this);          // 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      return bResult;          return bResult;
203  }  }
204    
205    
206  // Update whole channel info state.  // Channel reset slot.
207  bool qsamplerChannelStrip::updateChannelInfo (void)  bool qsamplerChannelStrip::channelReset (void)
208  {  {
209      if (m_pChannel == NULL)          if (m_pChannel == NULL)
210          return false;                  return false;
           
     // Update strip caption.  
     QString sText = m_pChannel->channelName();  
     setCaption(sText);  
     ChannelSetupPushButton->setText(sText);  
211    
212      // Check if we're up and connected.          // Invoke the channel reset method.
213      if (m_pChannel->client() == NULL)          bool bResult = m_pChannel->channelReset();
214          return false;          // Notify that this channel has changed.
215            if (bResult)
216                    emit channelChanged(this);
217    
218      // Read actual channel information.          return bResult;
219      m_pChannel->updateChannelInfo();  }
220    
     // Set some proper display values.  
     const QString sIndent = " ";  
221    
222      // Engine name...  // Update the channel instrument name.
223      if (m_pChannel->engineName().isEmpty())  bool qsamplerChannelStrip::updateInstrumentName ( bool bForce )
224          EngineNameTextLabel->setText(sIndent + tr("(No engine)"));  {
225      else          if (m_pChannel == NULL)
226          EngineNameTextLabel->setText(sIndent + m_pChannel->engineName());                  return false;
227    
228      // Instrument name...          // Do we refresh the actual name?
229      if (m_pChannel->instrumentName().isEmpty())          if (bForce)
230          InstrumentNameTextLabel->setText(sIndent + tr("(No instrument)"));                  m_pChannel->updateInstrumentName();
     else  
         InstrumentNameTextLabel->setText(sIndent + m_pChannel->instrumentName());  
231    
232      // Instrument status...          // Instrument name...
233      int iInstrumentStatus = m_pChannel->instrumentStatus();          if (m_pChannel->instrumentName().isEmpty()) {
234      if (iInstrumentStatus < 0) {                  if (m_pChannel->instrumentStatus() >= 0)
235          InstrumentStatusTextLabel->setPaletteForegroundColor(Qt::red);                          InstrumentNameTextLabel->setText(' ' + qsamplerChannel::loadingInstrument());
236          InstrumentStatusTextLabel->setText(tr("ERR%1").arg(iInstrumentStatus));                  else
237      } else {                          InstrumentNameTextLabel->setText(' ' + qsamplerChannel::noInstrumentName());
238          InstrumentStatusTextLabel->setPaletteForegroundColor(iInstrumentStatus < 100 ? Qt::yellow : Qt::green);          } else
239          InstrumentStatusTextLabel->setText(QString::number(iInstrumentStatus) + "%");                  InstrumentNameTextLabel->setText(' ' + m_pChannel->instrumentName());
     }  
240    
241      // MIDI Port/Channel...          return true;    
     if (m_pChannel->midiChannel() == LSCP_MIDI_CHANNEL_ALL)  
         MidiPortChannelTextLabel->setText(QString("%1 / *").arg(m_pChannel->midiPort()));  
     else  
         MidiPortChannelTextLabel->setText(QString("%1 / %2").arg(m_pChannel->midiPort()).arg(m_pChannel->midiChannel() + 1));  
   
     // And update the both GUI volume elements.  
     return updateChannelVolume();  
242  }  }
243    
244    
# Line 218  bool qsamplerChannelStrip::updateChannel Line 271  bool qsamplerChannelStrip::updateChannel
271      VolumeSlider->setValue(iVolume);      VolumeSlider->setValue(iVolume);
272      VolumeSpinBox->setValue(iVolume);      VolumeSpinBox->setValue(iVolume);
273      m_iDirtyChange--;      m_iDirtyChange--;
274        
275      return true;      return true;
276  }  }
277    
278    
279  // Update whole channel usage state.  // Update whole channel info state.
280  bool qsamplerChannelStrip::updateChannelUsage (void)  bool qsamplerChannelStrip::updateChannelInfo (void)
281  {  {
282      if (m_pChannel == NULL)      if (m_pChannel == NULL)
283          return false;          return false;
284    
285            // Check for error limit/recycle...
286            if (m_iErrorCount > QSAMPLER_ERROR_LIMIT)
287                    return true;
288    
289        // Update strip caption.
290        QString sText = m_pChannel->channelName();
291        setCaption(sText);
292        ChannelSetupPushButton->setText(sText);
293    
294        // Check if we're up and connected.
295      if (m_pChannel->client() == NULL)      if (m_pChannel->client() == NULL)
296          return false;          return false;
297    
298      // Update whole channel status info,      // Read actual channel information.
299      // if instrument load is still pending...      m_pChannel->updateChannelInfo();
300      if (m_pChannel->instrumentStatus() < 100) {  
301          updateChannelInfo();      // Engine name...
302          // Check (updated) status again...      if (m_pChannel->engineName().isEmpty())
303          if (m_pChannel->instrumentStatus() < 100)          EngineNameTextLabel->setText(' ' + qsamplerChannel::noEngineName());
304              return false;      else
305          // Once we get a complete instrument load,          EngineNameTextLabel->setText(' ' + m_pChannel->engineName());
306          // we'll try an implied channel reset...  
307          m_pChannel->resetChannel();          // Instrument name...
308            updateInstrumentName(false);
309    
310        // MIDI Port/Channel...
311        if (m_pChannel->midiChannel() == LSCP_MIDI_CHANNEL_ALL)
312            MidiPortChannelTextLabel->setText(QString("%1 / *").arg(m_pChannel->midiPort()));
313        else
314            MidiPortChannelTextLabel->setText(QString("%1 / %2").arg(m_pChannel->midiPort()).arg(m_pChannel->midiChannel() + 1));
315    
316        // Instrument status...
317        int iInstrumentStatus = m_pChannel->instrumentStatus();
318        if (iInstrumentStatus < 0) {
319            InstrumentStatusTextLabel->setPaletteForegroundColor(Qt::red);
320            InstrumentStatusTextLabel->setText(tr("ERR%1").arg(iInstrumentStatus));
321            m_iErrorCount++;
322            return false;
323      }      }
324            // All seems normal...
325      // Check again that we're clean.      InstrumentStatusTextLabel->setPaletteForegroundColor(iInstrumentStatus < 100 ? Qt::yellow : Qt::green);
326      if (m_pChannel->instrumentStatus() < 100)      InstrumentStatusTextLabel->setText(QString::number(iInstrumentStatus) + '%');
327        m_iErrorCount = 0;
328    
329        // And update the both GUI volume elements;
330        // return success if, and only if, intrument is fully loaded...
331        return updateChannelVolume() && (iInstrumentStatus == 100);
332    }
333    
334    
335    // Update whole channel usage state.
336    bool qsamplerChannelStrip::updateChannelUsage (void)
337    {
338        if (m_pChannel == NULL)
339            return false;
340        if (m_pChannel->client() == NULL)
341          return false;          return false;
342    
343            // This only makes sense on fully loaded channels...
344            if (m_pChannel->instrumentStatus() < 100)
345                return false;
346    
347      // Get current channel voice count.      // Get current channel voice count.
348      int iVoiceCount  = ::lscp_get_channel_voice_count(m_pChannel->client(), m_pChannel->channelID());      int iVoiceCount  = ::lscp_get_channel_voice_count(m_pChannel->client(), m_pChannel->channelID());
349      // Get current stream count.      // Get current stream count.
# Line 259  bool qsamplerChannelStrip::updateChannel Line 356  bool qsamplerChannelStrip::updateChannel
356      // Update the GUI elements...      // Update the GUI elements...
357      StreamUsageProgressBar->setProgress(iStreamUsage);      StreamUsageProgressBar->setProgress(iStreamUsage);
358      StreamVoiceCountTextLabel->setText(QString("%1 / %2").arg(iStreamCount).arg(iVoiceCount));      StreamVoiceCountTextLabel->setText(QString("%1 / %2").arg(iStreamCount).arg(iVoiceCount));
359        
360      // We're clean.      // We're clean.
361      return true;      return true;
362  }  }
# Line 293  void qsamplerChannelStrip::contextMenuEv Line 390  void qsamplerChannelStrip::contextMenuEv
390  {  {
391      if (m_pChannel == NULL)      if (m_pChannel == NULL)
392          return;          return;
393            
394      // We'll just show up the main form's edit menu (thru qsamplerChannel).      // We'll just show up the main form's edit menu (thru qsamplerChannel).
395      m_pChannel->contextMenuEvent(pEvent);      m_pChannel->contextMenuEvent(pEvent);
396  }  }
397    
398    
399  // Maximum volume slider accessors.  // Error count hackish accessors.
400  void qsamplerChannelStrip::setMaxVolume ( int iMaxVolume )  void qsamplerChannelStrip::resetErrorCount (void)
401  {  {
402      m_iDirtyChange++;          m_iErrorCount = 0;
     VolumeSlider->setRange(0, iMaxVolume);  
     VolumeSpinBox->setRange(0, iMaxVolume);  
     m_iDirtyChange--;  
403  }  }
404    
405    
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