/[svn]/qsampler/trunk/src/qsamplerChannelStrip.ui.h
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revision 299 by capela, Wed Nov 17 15:41:58 2004 UTC revision 519 by schoenebeck, Sun May 8 17:04:10 2005 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) 2004-2005, 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 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)
45  {  {
46      // Initialize locals.      // Initialize locals.
     m_pMainForm    = NULL;  
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 58  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 ( qsamplerMainForm *pMainForm, int iChannelID )  void qsamplerChannelStrip::setup ( qsamplerChannel *pChannel )
112  {  {
113      // Set main form reference.      // Destroy any previous channel descriptor;
114      m_pMainForm = pMainForm;      // (remember that once setup we own it!)
       
     // Destroy any previous channel descriptor.  
115      if (m_pChannel)      if (m_pChannel)
116          delete m_pChannel;          delete m_pChannel;
117    
118      // Create a new one...      // Set the new one...
119      m_pChannel = new qsamplerChannel(pMainForm);      m_pChannel = pChannel;
     // And set appropriate settings.  
     if (m_pChannel && iChannelID >= 0) {  
         m_pChannel->setChannelID(iChannelID);  
         m_iDirtyChange = 0;  
     }  
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 131  void qsamplerChannelStrip::setDisplayBac Line 177  void qsamplerChannelStrip::setDisplayBac
177  }  }
178    
179    
180  // Channel setup dialog slot.  // Maximum volume slider accessors.
181  bool qsamplerChannelStrip::channelSetup (void)  void qsamplerChannelStrip::setMaxVolume ( int iMaxVolume )
182  {  {
183      bool bResult = false;      m_iDirtyChange++;
184        VolumeSlider->setRange(0, iMaxVolume);
185        VolumeSpinBox->setRange(0, iMaxVolume);
186        m_iDirtyChange--;
187    }
188    
     qsamplerChannelForm *pChannelForm = new qsamplerChannelForm(this);  
     if (pChannelForm) {  
         pChannelForm->setup(m_pChannel);  
         bResult = pChannelForm->exec();  
         delete pChannelForm;  
     }  
189    
190      if (bResult)  // Channel setup dialog slot.
191          emit channelChanged(this);  bool qsamplerChannelStrip::channelSetup (void)
192    {
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 thie 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 thie channel has changed.
215            if (bResult)
216      // Read actual channel information.                  emit channelChanged(this);
     m_pChannel->updateChannelInfo();  
217    
218      // Set some proper display values.          return bResult;
219      const QString sIndent = " ";  }
220    
     // Engine name...  
     if (m_pChannel->engineName().isEmpty())  
         EngineNameTextLabel->setText(sIndent + tr("(No engine)"));  
     else  
         EngineNameTextLabel->setText(sIndent + m_pChannel->engineName());  
221    
222      // Instrument name...  // Update the channel instrument name.
223      if (m_pChannel->instrumentFile().isEmpty())  bool qsamplerChannelStrip::updateInstrumentName ( bool bForce )
224          InstrumentNameTextLabel->setText(sIndent + tr("(No instrument)"));  {
225      else          if (m_pChannel == NULL)
226          InstrumentNameTextLabel->setText(sIndent + qsamplerChannel::getInstrumentName(m_pChannel->instrumentFile(), m_pChannel->instrumentNr()));                  return false;
227    
228      // Instrument status...          // Do we refersh the actual name?
229      int iInstrumentStatus = m_pChannel->instrumentStatus();          if (bForce)
230      if (iInstrumentStatus < 0) {                  m_pChannel->updateInstrumentName();
         InstrumentStatusTextLabel->setPaletteForegroundColor(Qt::red);  
         InstrumentStatusTextLabel->setText(tr("ERR%1").arg(iInstrumentStatus));  
     } else {  
         InstrumentStatusTextLabel->setPaletteForegroundColor(iInstrumentStatus < 100 ? Qt::yellow : Qt::green);  
         InstrumentStatusTextLabel->setText(QString::number(iInstrumentStatus) + "%");  
     }  
231    
232      // MIDI Port/Channel...          // Instrument name...
233      if (m_pChannel->midiChannel() == LSCP_MIDI_CHANNEL_ALL)          if (m_pChannel->instrumentName().isEmpty()) {
234          MidiPortChannelTextLabel->setText(QString("%1 / *").arg(m_pChannel->midiPort()));                  if (m_pChannel->instrumentStatus() >= 0)
235      else                          InstrumentNameTextLabel->setText(' ' + qsamplerChannel::loadingInstrument());
236          MidiPortChannelTextLabel->setText(QString("%1 / %2").arg(m_pChannel->midiPort()).arg(m_pChannel->midiChannel() + 1));                  else
237                            InstrumentNameTextLabel->setText(' ' + qsamplerChannel::noInstrumentName());
238            } else
239                    InstrumentNameTextLabel->setText(' ' + m_pChannel->instrumentName());
240    
241      // And update the both GUI volume elements.          return true;    
     return updateChannelVolume();  
242  }  }
243    
244    
# Line 233  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      // Conditionally update whole channel status info.      // Read actual channel information.
299      if (m_pChannel->instrumentStatus() >= 0 && m_pChannel->instrumentStatus() < 100) {      m_pChannel->updateChannelInfo();
300          updateChannelInfo();  
301          // Once we get a complete instrument load, try a implied reset channel....      // Engine name...
302          if (m_pChannel->instrumentStatus() == 100)      if (m_pChannel->engineName().isEmpty())
303              m_pChannel->resetChannel();          EngineNameTextLabel->setText(' ' + qsamplerChannel::noEngineName());
304        else
305            EngineNameTextLabel->setText(' ' + m_pChannel->engineName());
306    
307            // 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      // Leave, if we still have an erroneus or incomplete instrument load.      // All seems normal...
325      if (m_pChannel->instrumentStatus() < 100)      InstrumentStatusTextLabel->setPaletteForegroundColor(iInstrumentStatus < 100 ? Qt::yellow : Qt::green);
326        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 301  void qsamplerChannelStrip::volumeChanged Line 388  void qsamplerChannelStrip::volumeChanged
388  // Context menu event handler.  // Context menu event handler.
389  void qsamplerChannelStrip::contextMenuEvent( QContextMenuEvent *pEvent )  void qsamplerChannelStrip::contextMenuEvent( QContextMenuEvent *pEvent )
390  {  {
391      if (m_pMainForm == NULL)      if (m_pChannel == NULL)
392          return;          return;
393                    
394      // We'll just show up the main form's edit menu.      // We'll just show up the main form's edit menu (thru qsamplerChannel).
395      m_pMainForm->contextMenuEvent(pEvent);      m_pChannel->contextMenuEvent(pEvent);
 }  
   
   
 // Maximum volume slider accessors.  
 void qsamplerChannelStrip::setMaxVolume ( int iMaxVolume )  
 {  
     m_iDirtyChange++;  
     VolumeSlider->setRange(0, iMaxVolume);  
     VolumeSpinBox->setRange(0, iMaxVolume);  
     m_iDirtyChange--;  
396  }  }
397    
398    
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