Method OnTransportAdvanced

Source/EventCanvas.cpp:108–181

}

void EventCanvas::OnTransportAdvanced(float amount)
{
   PROFILER(EventCanvas);

   if (mCanvas == nullptr)
      return;

   //look ahead two buffers so that we set things slightly early, so we'll do things like catch the downbeat right after enabling a sequencer, etc.
   double lookaheadMsAmount = gBufferSizeMs * 2;
   double lookaheadTime = gTime + lookaheadMsAmount;
   double lookaheadPos = DoubleWrap(((TheTransport->GetMeasure(lookaheadTime) % mNumMeasures) + TheTransport->GetMeasurePos(lookaheadTime)) / mNumMeasures, 1);

   mCanvas->SetCursorPos(lookaheadPos);
   mPosition = lookaheadPos;
   double bufferOffsetAmount = gBufferSizeMs / TheTransport->MsPerBar() / mNumMeasures;
   mPreviousPosition = std::min(mPreviousPosition, lookaheadPos - bufferOffsetAmount);

   if (!mEnabled)
      return;

   for (auto* canvasElement : mCanvas->GetElements())
   {
      float elementStart = canvasElement->GetStart();
      bool startPassed = (lookaheadPos >= elementStart && mPreviousPosition < elementStart);
      float elementEnd = canvasElement->GetEnd();
      if (elementEnd > mCanvas->GetLength())
         elementEnd = FloatWrap(elementEnd, mCanvas->GetLength());
      bool endPassed = (lookaheadPos >= elementEnd && mPreviousPosition < elementEnd);
      if (startPassed || endPassed)
      {
         EventCanvasElement* element = static_cast<EventCanvasElement*>(canvasElement);
         if (lookaheadPos > elementEnd)
         {
            if (startPassed)
               element->Trigger(GetTriggerTime(lookaheadTime, lookaheadPos, elementStart));
            if (endPassed)
               element->TriggerEnd(GetTriggerTime(lookaheadTime, lookaheadPos, elementEnd));
         }
         else
         {
            if (endPassed)
               element->TriggerEnd(GetTriggerTime(lookaheadTime, lookaheadPos, elementEnd));
            if (startPassed)
               element->Trigger(GetTriggerTime(lookaheadTime, lookaheadPos, elementStart));
         }

         IUIControl* control = mRowConnections[element->mRow].mUIControl;
         if (control)
            mRowConnections[element->mRow].mLastValue = control->GetValue();
      }
   }

   for (int i = 0; i < mControlCables.size(); ++i)
   {
      if (mRowConnections[i].mUIControl)
      {
         float value = mRowConnections[i].mUIControl->GetValue();