Method UpdateUI

src/effects/lv2/LV2Editor.cpp:641–706

}

bool LV2Editor::UpdateUI()
{
   const auto &mySettings = GetSettings(mAccess.Get());
   auto pMaster = mInstance.GetMaster();

   if (pMaster && mySettings.mpState) {
      // Maybe there are other important side effects on the instance besides
      // changes of port values
      lilv_state_restore(mySettings.mpState.get(), &pMaster->GetInstance(),
         nullptr, nullptr, 0, nullptr);
      // Destroy the short lived carrier of preset state
      mySettings.mpState.reset();
   }

   auto &values = mySettings.values;
   {
      size_t index = 0; for (auto & state : mPortUIStates.mControlPortStates) {
         auto &port = state.mpPort;
         if (port->mIsInput)
            state.mTmp =
               values[index] * (port->mSampleRate ? mSampleRate : 1.0);
         ++index;
      }
   }

   if (mUseGUI) {
      // fancy UI
      if (mUI.mSuilInstance) {
         size_t index = 0;
         for (auto & port : mPorts.mControlPorts) {
            if (port->mIsInput)
               suil_instance_port_event(mUI.mSuilInstance.get(),
                  port->mIndex, sizeof(float),
                  /* Means this event sends a float: */ 0,
                  &values[index]);
            ++index;
         }
      }
      return true;
   }

   // else plain UI
   // Visiting controls by groups
   for (auto & group : mPorts.mGroups) {
      const auto & params = mPorts.mGroupMap.at(group); /* won't throw */
      for (auto & param : params) {
         auto &state = mPortUIStates.mControlPortStates[param];
         auto &port = state.mpPort;
         auto &ctrl = mPlainUIControls[param];
         auto &value = values[param];
         if (port->mTrigger)
            continue;
         else if (port->mToggle)
            ctrl.checkbox->SetValue(value > 0);
         else if (port->mEnumeration)      // Check before integer
            ctrl.choice->SetSelection(port->Discretize(value));
         else if (port->mIsInput) {
            state.mTmp = value * (port->mSampleRate ? mSampleRate : 1.0f);