Hello GitHub

src/Calculator/Converters/ExpressionItemTemplateSelector.cpp

@@ -0,0 +1,37 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+#include "pch.h"
+#include "ExpressionItemTemplateSelector.h"
+#include "CalcViewModel\Common\DisplayExpressionToken.h"
+
+using namespace CalculatorApp::Common;
+
+namespace CalculatorApp
+{
+    namespace Converters
+    {
+        Windows::UI::Xaml::DataTemplate^ ExpressionItemTemplateSelector::SelectTemplateCore(Platform::Object^ item, Windows::UI::Xaml::DependencyObject^ container)
+        {
+            DisplayExpressionToken^ token = dynamic_cast<DisplayExpressionToken^>(item);
+            if (token != nullptr)
+            {
+                Common::TokenType type = token->Type;
+
+                switch (type)
+                {
+                case TokenType::Operator:
+                    return m_operatorTemplate;
+                case TokenType::Operand:
+                    return m_operandTemplate;
+                case TokenType::Separator:
+                    return m_separatorTemplate;
+                default:
+                    throw ref new Platform::Exception(E_FAIL, L"Invalid token type");
+                }
+            }
+
+            return m_separatorTemplate;
+        }
+    }
+}