Add tooltip property to node parameters.

app/node/color/ociogradingtransformlinear/ociogradingtransformlinear.cpp

@@ -77,7 +77,7 @@ OCIOGradingTransformLinearNode::OCIOGradingTransformLinearNode()
 
 QString OCIOGradingTransformLinearNode::Name() const
 {
-  return tr("OCIO Linear Grading Transform");
+  return tr("OCIO Color Grading (Linear)");
 }
 
 QString OCIOGradingTransformLinearNode::id() const
@@ -103,6 +103,7 @@ void OCIOGradingTransformLinearNode::Retranslate()
   SetInputName(kContrastInput, tr("Contrast"));
   SetInputName(kOffsetInput, tr("Offset"));
   SetInputName(kExposureInput, tr("Exposure"));
+  SetInputProperty(kExposureInput, QStringLiteral("tooltip"), tr("Exposure increments in stops."));
   SetInputName(kSaturationInput, tr("Saturation"));
   SetInputName(kPivotInput, tr("Pivot"));
   SetInputName(kClampBlackEnableInput, tr("Enable Black Clamp"));

app/widget/nodeparamview/nodeparamviewwidgetbridge.cpp

@@ -571,6 +571,12 @@ void NodeParamViewWidgetBridge::SetProperty(const QString &key, const QVariant &
 
   }
 
+  if (key == QStringLiteral("tooltip")) {
+    for (int i = 0; i < widgets_.size(); i++) {
+      widgets_.at(i)->setToolTip(value.toString());
+    }
+  }
+
   // Parameters for integers, floats, and vectors
   if (NodeValue::type_is_numeric(data_type) || NodeValue::type_is_vector(data_type)) {
     if (key == QStringLiteral("min")) {