Move CSystem::GetOSPlatform() to Platform.h

Common/Platform.cpp

@@ -0,0 +1,59 @@
+/*
+  Copyright (C) 2013 Birunthan Mohanathas
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License
+  as published by the Free Software Foundation; either version 2
+  of the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
+#include "Platform.h"
+#include <Windows.h>
+
+namespace Platform {
+
+Version GetVersion()
+{
+	static Version s_Version = ([]()
+	{
+		OSVERSIONINFOEX osvi = {sizeof(OSVERSIONINFOEX)};
+		if (GetVersionEx((OSVERSIONINFO*)&osvi))
+		{
+			switch (osvi.dwMajorVersion)
+			{
+			case 5:
+				// Not checking for osvi.dwMinorVersion >= 1 because Rainmeter won't run on pre-XP.
+				return Version::WinXP;
+
+			case 6:
+				switch (osvi.dwMinorVersion)
+				{
+				case 0:
+					return Version::WinVista;  // Vista, Server 2008
+
+				case 1:
+					return Version::Win7;  // 7, Server 2008R2
+
+				default:
+					return Version::Win8;  // 8, Server 2012
+				}
+				break;
+			}
+		}
+
+		return Version::Win8;  // newer OS
+	})();
+
+	return s_Version;
+}
+
+}  // namespace Platform

Common/Platform.h

@@ -0,0 +1,46 @@
+/*
+  Copyright (C) 2013 Birunthan Mohanathas
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License
+  as published by the Free Software Foundation; either version 2
+  of the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
+#ifndef RM_COMMON_PLATFORM_H_
+#define RM_COMMON_PLATFORM_H_
+
+namespace Platform {
+
+enum Version
+{
+	WinXP,
+	WinVista,
+	Win7,
+	Win8
+};
+
+Version GetVersion();
+
+#define RM_PLATFORM_DECLARE_HELPERS(ver) \
+	inline bool IsAtMost ## ver() { return GetVersion() <= ver; } \
+	inline bool Is ## ver() { return GetVersion() == ver; } \
+	inline bool IsAtLeast ## ver() { return GetVersion() >= ver; } \
+
+RM_PLATFORM_DECLARE_HELPERS(WinXP)
+RM_PLATFORM_DECLARE_HELPERS(WinVista)
+RM_PLATFORM_DECLARE_HELPERS(Win7)
+RM_PLATFORM_DECLARE_HELPERS(Win8)
+
+}  // namespace Platform
+
+#endif