EnvelopeProcessor::ErrorCode EnvelopeProcessor::processSelectedTrackEnv()
{
TrackEnvelope* envelope = GetSelectedTrackEnvelope(0);
if(!envelope)
return eERRORCODE_NOENVELOPE;
Undo_BeginBlock2(0);
double dStartPos, dEndPos;
GetTimeSegmentPositions(_envModParams.timeSegment, dStartPos, dEndPos);
if(dStartPos==dEndPos)
return eERRORCODE_NULLTIMESELECTION;
double dValMin, dValMax;
ErrorCode res = getTrackEnvelopeMinMax(envelope, dValMin, dValMax);
if(res != eERRORCODE_OK)
return res;
char* envState = GetSetObjectState(envelope, "");
string newState;
res = processPoints(envState, newState, dStartPos, dEndPos, dValMin, dValMax, _envModParams.type, _envModParams.strength, _envModParams.offset);
if(GetSetObjectState(envelope, newState.c_str()))
res = eERRORCODE_UNKNOWN;
else
FreeHeapPtr(envState);
//UpdateTimeline();
/* JFB "recursive" undo point, enabled at top level
Undo_OnStateChangeEx("Envelope Processor", UNDO_STATE_ALL, -1);
*/
Undo_EndBlock2(NULL, __LOCALIZE("Track envelope processor","sws_undo"), UNDO_STATE_TRACKCFG);
return res;
}
EnvelopeProcessor::ErrorCode EnvelopeProcessor::getTrackEnvelopeMinMax(TrackEnvelope* envelope, double &dEnvMinVal, double &dEnvMaxVal)
{
if(!envelope)
return eERRORCODE_NOENVELOPE;
char* envState = GetSetObjectState(envelope, "");
if(!envState)
return eERRORCODE_NOOBJSTATE;
dEnvMinVal = 0.0;
dEnvMaxVal = 1.0;
double dTmp[2];
int iTmp;
stringstream envStateStream;
envStateStream << envState;
std::vector<string> tokens;
while(!envStateStream.eof())
{
string str;
getline(envStateStream, str, '\n');
tokens.push_back(str);
}
for(vector<string>::const_iterator it = tokens.begin(); it !=tokens.end(); ++it)
{
// Track envelope: Volume
if(!strcmp(it->c_str(), "<VOLENV") || !strcmp(it->c_str(), "<VOLENV2"))
{
dEnvMaxVal = 2.0;
break;
}
// Track envelope: Pan
if(!strcmp(it->c_str(), "<PANENV") || !strcmp(it->c_str(), "<PANENV2"))
{
dEnvMinVal = -1.0;
break;
}
// Track envelope: Param (VST index, min value, max value)
if(sscanf(it->c_str(), "<PARMENV %d %lf %lf", &iTmp, &dTmp[0], &dTmp[1]) == 3)
{
dEnvMinVal = dTmp[0];
dEnvMaxVal = dTmp[1];
break;
}
if(!strcmp(it->c_str(), ">"))
break;
}
FreeHeapPtr(envState);
return eERRORCODE_OK;
}
bool SNM_GetSetObjectState(void* _obj, WDL_FastString* _state, bool _setnewvalue, bool _minstate)
{
bool ok = false;
if (_state && g_script_strs.Find(_state)>=0 && (ValidatePtr(_obj, "MediaTrack*") || ValidatePtr(_obj, "MediaItem*") || ValidatePtr(_obj, "TrackEnvelope*")))
{
int fxstate = SNM_PreObjectState(_setnewvalue ? _state : NULL, _minstate);
char* p = GetSetObjectState(_obj, _setnewvalue ? _state->Get() : NULL);
if (_setnewvalue)
{
ok = (p==NULL);
}
else if (p)
{
_state->Set(p);
FreeHeapPtr((void*)p);
ok = true;
}
SNM_PostObjectState(fxstate);
}
return ok;
}
bool SNM_GetSetObjectState(void* _obj, WDL_FastString* _state, bool _setnewvalue, bool _minstate)
{
bool ok = false;
if (_obj && _state)
{
int fxstate = SNM_PreObjectState(_setnewvalue ? _state : NULL, _minstate);
char* p = GetSetObjectState(_obj, _setnewvalue ? _state->Get() : NULL);
if (_setnewvalue)
{
ok = (p==NULL);
}
else if (p)
{
_state->Set(p);
FreeHeapPtr((void*)p);
ok = true;
}
SNM_PostObjectState(fxstate);
}
return ok;
}
EnvelopeProcessor::ErrorCode EnvelopeProcessor::generateTrackLfo(TrackEnvelope* envelope, double dStartPos, double dEndPos, LfoWaveParams &waveParams, double dPrecision)
{
if(!envelope)
return eERRORCODE_NOENVELOPE;
if(dStartPos==dEndPos)
return eERRORCODE_NULLTIMESELECTION;
char* envState = GetSetObjectState(envelope, "");
if(!envState)
return eERRORCODE_NOOBJSTATE;
string newState;
double dValMin = 0.0;
double dValMax = 1.0;
double dTmp[2];
int iTmp;
//! \todo Use with GetMinMax()
char* token = strtok(envState, "\n");
while(token != NULL)
{
if(!strcmp(token, "<VOLENV") || !strcmp(token, "<VOLENV2"))
dValMax = 2.0;
if(!strcmp(token, "<PANENV") || !strcmp(token, "<PANENV2"))
dValMin = -1.0;
// VST index, min value, max value
if(sscanf(token, "<PARMENV %d %lf %lf", &iTmp, &dTmp[0], &dTmp[1]) == 3)
{
dValMin = dTmp[0];
dValMax = dTmp[1];
}
// Position, value, shape
if(sscanf(token, "PT %lf %lf %d\n", &dTmp[0], &dTmp[1], &iTmp) == 3)
{
if(dTmp[0]>=dEndPos)
break;
if(dTmp[0]>dStartPos)
{
token = strtok(NULL, "\n");
continue;
}
}
if(!strcmp(token, ">"))
break;
newState.append(token);
newState.append("\n");
token = strtok(NULL, "\n");
}
writeLfoPoints(newState, dStartPos, dEndPos, dValMin, dValMax, waveParams, dPrecision);
newState.append(token);
newState.append("\n");
token = strtok(NULL, "\n");
while(token != NULL)
{
newState.append(token);
newState.append("\n");
token = strtok(NULL, "\n");
}
FreeHeapPtr(envState);
if(GetSetObjectState(envelope, newState.c_str()))
return eERRORCODE_UNKNOWN;
/* JFB commented: leads to "recursive" undo point, enabled at top level
Undo_OnStateChangeEx("Track Envelope LFO", UNDO_STATE_ALL, -1);
*/
return eERRORCODE_OK;
}
