private static IDeclaredElement FindDeclaredElement(IPsiView psiView, out IDeclaration declarationUnderCaret)
{
declarationUnderCaret = null;
var referenceName = psiView.GetSelectedTreeNode <IReferenceName>();
if (referenceName != null)
{
return(referenceName.Reference.Resolve().DeclaredElement);
}
var identifier = psiView.GetSelectedTreeNode <IShaderLabIdentifier>();
declarationUnderCaret = PropertyDeclarationNavigator.GetByName(identifier);
return(declarationUnderCaret?.DeclaredElement);
}
public IColorReference GetColorReference(ITreeNode element)
{
if (element is IVectorLiteral vectorLiteral)
{
var vectorPropertyValue = VectorPropertyValueNavigator.GetByVector(vectorLiteral);
if (vectorPropertyValue != null)
{
// Does the vector literal belong to a vector property or a color property?
var propertyDeclation = PropertyDeclarationNavigator.GetByPropertValue(vectorPropertyValue);
if (propertyDeclation == null)
{
return(null);
}
if (!(propertyDeclation.PropertyType is ISimplePropertyType simplePropertyType) ||
simplePropertyType.Keyword?.NodeType != ShaderLabTokenType.COLOR_KEYWORD)
{
return(null);
}
}
var values = vectorLiteral.Numbers;
if (values.Count == 3 || values.Count == 4)
{
var r = GetColorValue(values[0]);
var g = GetColorValue(values[1]);
var b = GetColorValue(values[2]);
// Technically, the colour should have 4 values, but show the highlight even if we're unfinished
var a = values.Count == 4 ? GetColorValue(values[3]) : 255;
var colorElement = new ColorElement(Color.FromArgb(a, r, g, b));
var range = GetDocumentRange(values[0], values.Last());
return(new ShaderLabColorReference(colorElement,
VectorPropertyValueNavigator.GetByVector(vectorLiteral),
ColorValueNavigator.GetByConstant(vectorLiteral), range));
}
}
return(null);
}
private static IDeclaredElement FindDeclaredElement([NotNull] IPsiView psiView)
{
var referenceExpression = psiView.GetSelectedTreeNode <IReferenceExpression>();
if (referenceExpression != null)
{
return(referenceExpression.Reference.Resolve().DeclaredElement);
}
var identifier = psiView.GetSelectedTreeNode <ICSharpIdentifier>();
if (identifier != null)
{
var referenceName = ReferenceNameNavigator.GetByNameIdentifier(identifier);
if (referenceName != null)
{
return(referenceName.Reference.Resolve().DeclaredElement);
}
var declarationUnderCaret =
FieldDeclarationNavigator.GetByNameIdentifier(identifier) ??
PropertyDeclarationNavigator.GetByNameIdentifier(identifier) ??
MethodDeclarationNavigator.GetByNameIdentifier(identifier) ??
ConstructorDeclarationNavigator.GetByTypeName(identifier) ??
CSharpTypeDeclarationNavigator.GetByNameIdentifier(identifier) ??
EventDeclarationNavigator.GetByNameIdentifier(identifier) ??
ConstantDeclarationNavigator.GetByNameIdentifier(identifier) ??
VariableDeclarationNavigator.GetByNameIdentifier(identifier);
return(declarationUnderCaret?.DeclaredElement);
}
var predefinedTypeUsage = psiView.GetSelectedTreeNode <IPredefinedTypeUsage>();
return(predefinedTypeUsage?.ScalarPredefinedTypeName.Reference.Resolve().DeclaredElement);
}
