void TTExpression::parse(TTValue& toParse)
{
// parse address
if (toParse.size() > 0) {
if (toParse[0].type() == kTypeSymbol) {
mAddress = toParse[0];
// parse operator
if (toParse.size() > 1) {
if (toParse[1].type() == kTypeSymbol) {
mOperator = toParse[1];
// we need to use word instead of sign because < and > symbol make trouble for XmlFormat parsing
if (mOperator == TTSymbol("=="))
mOperator = TTSymbol("equal");
else if (mOperator == TTSymbol("!="))
mOperator = TTSymbol("different");
else if (mOperator == TTSymbol(">"))
mOperator = TTSymbol("greaterThan");
else if (mOperator == TTSymbol(">="))
mOperator = TTSymbol("greaterThanOrEqual");
else if (mOperator == TTSymbol("<"))
mOperator = TTSymbol("lowerThan");
else if (mOperator == TTSymbol("<="))
mOperator = TTSymbol("lowerThanOrEqual");
// parse value
if (toParse.size() > 2) {
mValue.copyFrom(toParse, 2);
// convert to TTFloat64 for comparison purpose (see in evaluate method)
if (mValue.size())
{
if (mValue[0].type() != kTypeSymbol)
{
for (TTElementIter it = mValue.begin(); it != mValue.end(); it++)
*it = TTFloat64(TTElement(*it));
}
}
}
}
}
}
}
}
void
DemoApp::SetupScore()
{
TTValue args, out;
TTObject xmlHandler("XmlHandler");
TTLogMessage("\n*** Initialisation of Score environnement ***\n");
/////////////////////////////////////////////////////////////////////
// Init the Score library (passing the folder path where all the dylibs are)
TTScoreInit("/usr/local/jamoma");
TTLogMessage("\n*** Reading of an interactive scenario file ***\n");
/////////////////////////////////////////////////////////////////////
// Create an empty Scenario
mScenario = TTObject("Scenario");
// Read DemoScenario1.score file to fill mScenario
xmlHandler.set("object", mScenario);
xmlHandler.send("Read", "../DemoScenario.score", out);
TTLogMessage("\n*** Prepare scenario observation ***\n");
/////////////////////////////////////////////////////////////////////
// Create a callback for the "EventStatusChanged" notification sent by each event
mEventStatusChangedCallback = TTObject("callback");
mEventStatusChangedCallback.set("baton", TTPtr(this));
mEventStatusChangedCallback.set("function", TTPtr(&DemoAppEventStatusChangedCallback));
mEventStatusChangedCallback.set("notification", TTSymbol("EventStatusChanged"));
// Get all events of the scenario and attach a callback to them
TTValue timeEvents;
mScenario.get("timeEvents", timeEvents);
for (TTElementIter it = timeEvents.begin() ; it != timeEvents.end() ; it++) {
TTObject event = TTElement(*it);
event.registerObserverForNotifications(mEventStatusChangedCallback);
}
TTLogMessage("\n*** Start scenario execution ***\n");
/////////////////////////////////////////////////////////////////////
// Set the execution speed of the scenario
mScenario.set("speed", 2.);
// Start the scenario
mScenario.send("Start");
// Poll Scenario information
mPollingThread = new TTThread(TTThreadCallbackType(DemoAppScenarioPollingThread), this);
}
TTBoolean TTExpression::evaluate(const TTValue& value)
{
TTValue toCompare = value;
// convert to TTFloat64 to have the same type than mValue (see in parse method)
if (toCompare.size())
{
if (toCompare[0].type() != kTypeSymbol)
{
for (TTElementIter it = toCompare.begin(); it != toCompare.end(); it++)
*it = TTFloat64(TTElement(*it));
}
}
if (mOperator == kTTSymEmpty)
return YES;
if (mOperator == TTSymbol("equal"))
return toCompare == mValue;
if (mOperator == TTSymbol("different"))
return toCompare != mValue;
if (mOperator == TTSymbol("greaterThan"))
return toCompare > mValue;
if (mOperator == TTSymbol("greaterThanOrEqual"))
return toCompare >= mValue;
if (mOperator == TTSymbol("lowerThan"))
return toCompare < mValue;
if (mOperator == TTSymbol("lowerThanOrEqual"))
return toCompare <= mValue;
return NO;
}
