From b20fa2287264ab02463ba0fa65b9c7101cdfb084 Mon Sep 17 00:00:00 2001
From: Ryo Suzuki <reputeless+github@gmail.com>
Date: Tue, 4 Jun 2024 23:37:33 +0900
Subject: [PATCH] =?UTF-8?q?[Windows,=20macOS,=20Linux]=20=E3=83=97?=
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---
 Siv3D/include/Siv3D/System.hpp                | 10 ++++++
 .../Linux/Siv3D/System/SivSystem_Linux.cpp    | 10 ++++++
 .../Web/Siv3D/System/SivSystem_Web.cpp        | 10 ++++++
 .../Siv3D/System/SivSystem_Windows.cpp        | 32 +++++++++++++++++++
 .../macOS/Siv3D/System/SivSystem_macOS.mm     | 18 +++++++++++
 5 files changed, 80 insertions(+)

diff --git a/Siv3D/include/Siv3D/System.hpp b/Siv3D/include/Siv3D/System.hpp
index ccc7659c2..6da9e082d 100644
--- a/Siv3D/include/Siv3D/System.hpp
+++ b/Siv3D/include/Siv3D/System.hpp
@@ -104,6 +104,16 @@ namespace s3d
 		/// @param fileName ファイル名 | File name
 		/// @return テキストエディタの起動に成功した場合 true, それ以外の場合は false | Returns true if the text editor was launched successfully, otherwise false.
 		bool LaunchFileWithTextEditor(FilePathView fileName);
+
+		/// @brief プログラムが Visual Studio で実行されているかを返します。 | Returns whether the program is running in Visual Studio.
+		/// @return プログラムが Visual Studio で実行されている場合 true, それ以外の場合は false | Returns true if the program is running in Visual Studio, false otherwise
+		[[nodiscard]]
+		bool IsRunningInVisualStudio();
+
+		/// @brief プログラムが Xcode で実行されているかを返します。 | Returns whether the program is running in Xcode.
+		/// @return プログラムが Xcode で実行されている場合 true, それ以外の場合は false | Returns true if the program is running in Xcode, false otherwise
+		[[nodiscard]]
+		bool IsRunningInXcode();
 	}
 
 # if SIV3D_PLATFORM(WEB)
diff --git a/Siv3D/src/Siv3D-Platform/Linux/Siv3D/System/SivSystem_Linux.cpp b/Siv3D/src/Siv3D-Platform/Linux/Siv3D/System/SivSystem_Linux.cpp
index c57d77de9..1cc2b9f11 100644
--- a/Siv3D/src/Siv3D-Platform/Linux/Siv3D/System/SivSystem_Linux.cpp
+++ b/Siv3D/src/Siv3D-Platform/Linux/Siv3D/System/SivSystem_Linux.cpp
@@ -231,5 +231,15 @@ namespace s3d
 
 			return (std::system(command.c_str()) == 0);
 		}
+
+		bool IsRunningInVisualStudio()
+		{
+			return false;
+		}
+
+		bool IsRunningInXcode()
+		{
+			return false;
+		}
 	}
 }
diff --git a/Siv3D/src/Siv3D-Platform/Web/Siv3D/System/SivSystem_Web.cpp b/Siv3D/src/Siv3D-Platform/Web/Siv3D/System/SivSystem_Web.cpp
index 0af909d7f..5c68d5741 100644
--- a/Siv3D/src/Siv3D-Platform/Web/Siv3D/System/SivSystem_Web.cpp
+++ b/Siv3D/src/Siv3D-Platform/Web/Siv3D/System/SivSystem_Web.cpp
@@ -52,6 +52,16 @@ namespace s3d
 		{
 			return false;
 		}
+
+		bool IsRunningInVisualStudio()
+		{
+			return false;
+		}
+
+		bool IsRunningInXcode()
+		{
+			return false;
+		}
 	}
 
 	namespace Platform::Web::System
diff --git a/Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/System/SivSystem_Windows.cpp b/Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/System/SivSystem_Windows.cpp
index eb3cb5668..009e1f5c6 100644
--- a/Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/System/SivSystem_Windows.cpp
+++ b/Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/System/SivSystem_Windows.cpp
@@ -19,6 +19,26 @@
 
 namespace s3d
 {
+	namespace
+	{
+		[[nodiscard]]
+		static bool IsRunningInVisualStudio_impl()
+		{
+			wchar_t* pValue;
+			size_t len;
+			errno_t err = ::_wdupenv_s(&pValue, &len, L"VisualStudioVersion");
+
+			if (err || (not pValue))
+			{
+				return false;
+			}
+
+			std::free(pValue);
+
+			return true;
+		}
+	}
+
 	namespace System
 	{
 		void Sleep(const int32 milliseconds)
@@ -177,5 +197,17 @@ namespace s3d
 
 			return (::ShellExecuteExW(&sei) != 0);
 		}
+
+		bool IsRunningInVisualStudio()
+		{
+			static const bool result = IsRunningInVisualStudio_impl();
+
+			return result;
+		}
+
+		bool IsRunningInXcode()
+		{
+			return false;
+		}
 	}
 }
diff --git a/Siv3D/src/Siv3D-Platform/macOS/Siv3D/System/SivSystem_macOS.mm b/Siv3D/src/Siv3D-Platform/macOS/Siv3D/System/SivSystem_macOS.mm
index f053eee05..6a37d8f58 100644
--- a/Siv3D/src/Siv3D-Platform/macOS/Siv3D/System/SivSystem_macOS.mm
+++ b/Siv3D/src/Siv3D-Platform/macOS/Siv3D/System/SivSystem_macOS.mm
@@ -47,6 +47,12 @@ static bool MacOS_OpenHTMLInBrowser(const char* _path)
 			}
 			
 		}
+		
+		[[nodiscard]]
+		static bool IsRunningInXcode_impl()
+		{
+			return (std::getenv("__XCODE_BUILT_PRODUCTS_DIR_PATHS") != nullptr);
+		}
 	}
 
 	namespace System
@@ -190,5 +196,17 @@ bool LaunchFileWithTextEditor(const FilePathView fileName)
 
 			return (std::system(command.c_str()) == 0);
 		}
+
+		bool IsRunningInVisualStudio()
+		{
+			return false;
+		}
+
+		bool IsRunningInXcode()
+		{
+			static const bool result = detail::IsRunningInXcode_impl();
+
+			return result;
+		}
 	}
 }